JP6413312B2 - Pump and resin composition - Google Patents

Description

  The present invention relates to a pump and a resin composition.

  Various techniques for pumps have been studied, and examples include those described in Patent Documents 1 and 2.

  Patent Documents 1 and 2 are both related to a vane type vacuum pump. In Patent Document 1, there is an oil groove extending in a substantially tangential direction with respect to the outer periphery of the rotor in the vicinity of the contact portion of the thrust sliding contact surface that contacts the outer peripheral edge portion of the rotor by tilting the rotor when the rotor rotates. A vane vacuum pump is described which is formed. In Patent Document 2, the housing and the rotor are both formed of the same kind of non-ferrous metal, and a hard surface treatment film is formed on at least one of the contact surfaces of the non-ferrous metal housing and the rotor. A vane vacuum pump is described.

JP 2004-263690 A JP 2010-112332 A

  The pump is required to be lighter.

According to the present invention,
It is comprised by the resin metal composite formed by joining the resin member and metal member which are formed using a thermosetting resin composition, and at least one part of an inner wall surface is comprised by the said resin member. A housing,
A sliding contact member that is accommodated in the housing and that is in sliding contact with a portion of the inner wall surface that is configured by the resin member;
With
The resin metal composite having the same thickness of the resin member and the metal member has a thermal conductivity of 0.5 W / (m · K) in the lamination direction of the resin member and the metal member measured by a laser flash method. ) A pump is provided .

According to the present invention,
It is comprised by the resin metal composite formed by joining a resin member and a metal member, and at least one part of the inner wall surface is comprised by the said resin member, and is accommodated in the said housing | casing And a slidable contact member slidably contacting a portion of the inner wall surface constituted by the resin member, and a laser flash method of the resin metal composite having the resin member and the metal member having the same thickness. A resin composition used for forming the resin member of a pump having a thermal conductivity in the stacking direction of the resin member and the metal member measured in step of 0.5 W / (m · K) or more. ,
A resin composition comprising a thermosetting resin is provided .

  According to the present invention, the weight of the pump can be reduced.

It is a top view which shows an example of the pump which concerns on this embodiment. It is sectional drawing which shows the pump shown in FIG. It is sectional drawing which shows a part of metal member of the pump shown in FIG. It is sectional drawing which shows an example of the manufacturing method of the pump which concerns on this embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

FIG. 1 is a plan view illustrating an example of a pump 100 according to the present embodiment. FIG. 2 is a cross-sectional view showing the pump 100 shown in FIG. In FIGS. 1 and 2, the structure of each member is schematically shown, and the structure of each member is not limited to that shown in FIGS.
The pump 100 according to the present embodiment includes a housing 10 and a sliding contact member. The housing 10 is constituted by a resin-metal composite 20 formed by joining a resin member 22 formed using a thermosetting resin composition and a metal member 24. In addition, the housing 10 includes at least a part of the inner wall surface 12 made of a resin member 22. The slidable contact member is accommodated in the casing 10 and slidably contacts a portion of the inner wall surface 12 of the casing 10 constituted by the resin member 22.

  According to the present embodiment, the casing 10 constituting the pump 100 is constituted by the resin-metal composite 20 formed by joining the resin member 22 and the metal member 24. For this reason, the weight of the housing | casing 10 can be reduced compared with the case where the housing | casing 10 is formed only with a metal material. Therefore, it is possible to reduce the weight of the pump 100.

  Hereinafter, the pump 100 and each member constituting the pump 100 will be described in detail.

<Pump>
First, the pump 100 will be described.
Examples of the pump 100 include a vacuum pump and an oil pump. In this embodiment, the case where the pump 100 is a vane type vacuum pump is illustrated. In this case, the pump 100 includes a vane 32 that is housed in the housing 10 and is a sliding member that is in sliding contact with the inner wall surface 12 of the housing 10. The application of the pump 100 is not particularly limited, and examples thereof include an in-vehicle vacuum pump mounted on a vehicle. As a vehicle-mounted vacuum pump, a brake booster negative pressure generator can be exemplified.

  In the example shown in FIGS. 1 and 2, the pump 100 includes a housing 10, a rotor 30, and a vane 32 that is a sliding contact member. The housing 10 has, for example, a cylindrical shape in which one end side is opened and the other end side is closed. In this case, the inner wall surface 12 of the cylindrical casing 10 includes an inner surface 122 and a closing surface 124 that closes the other end side. The closing surface 124 is provided with a bearing portion 16 for supporting the rotor shaft 36, for example. Moreover, the one end side is obstruct | occluded by the cover 50, for example. The housing 10 is provided with an intake port 40 for sucking air and an exhaust port 42 for discharging air, which are connected to different spaces. The space surrounded by the housing 10 has, for example, an elliptical shape or a pseudo-elliptical shape in plan view.

  The housing 10 is composed of a resin-metal composite 20 formed by joining a resin member 22 and a metal member 24. In this way, by configuring a part of the housing 10 with the resin member 22, it is possible to reduce the weight of the pump 100 as compared with a case where the housing 10 is configured with only a metal material. On the other hand, by using a part of the housing 10 as the metal member 24, the strength and rigidity, gas barrier properties, airtightness, thermal conductivity, and the like of the housing 10 can be improved.

  In the housing 10, at least a part of the inner wall surface 12 is configured by a resin member 22. Thereby, the vane 32 which is a slidable contact member can be slidably contacted with the resin member 22. For this reason, it becomes possible to improve the slidability etc. of the vane 32 and to improve the pump performance. In FIG. 1 and FIG. 2, the case where the whole inner wall surface 12 of the housing | casing 10 is comprised with the resin member 22 is illustrated. In this case, the inner surface 122 and the closing surface 124 of the housing 10 are constituted by the resin member 22. The configuration of the housing 10 is not limited to this. For example, only the inner surface 122 of the inner wall surface 12 of the housing 10 may be configured by the resin member 22, and the closing surface 124 may be configured by the metal member 24. .

  The outer wall surface of the housing 10 is made of, for example, a metal member 24. Thus, by configuring the outer wall surface of the casing 10 with the metal member 24, it is possible to effectively improve the attack resistance of the casing 10. In FIG. 1 and FIG. 2, the case where the whole outer wall surface of the housing | casing 10 is comprised with the metal member 24 is illustrated, However, It is not limited to this.

For example, when the resin member 22 and the metal member 24 are equal in thickness, the resin metal composite 20 constituting the housing 10 has a thermal conductivity in the stacking direction of the resin member 22 and the metal member 24 measured by the laser flash method. It is preferably 0.5 W / (m · K) or more. Thereby, the heat dissipation of the housing | casing 10 can be improved. From the viewpoint of improving the heat dissipation of the housing 10, the thermal conductivity is more preferably 0.6 W / (m · K) or more, and particularly preferably 0.7 W / (m · K) or more. preferable.
Here, for example, the resin member 22 and the metal member are set so that the thickness of the resin member 22 and the metal member 24 is 1: 1 with respect to the test piece in which the resin member 22 cut out from the housing 10 and the metal member 24 are joined. What made 24 thin film can be made into a measurement sample. About this measurement sample, the said heat conductivity can be obtained by measuring the heat conductivity in the lamination direction of the resin member 22 and the metal member 24 by the laser flash method.

  The thermal conductivity of the resin-metal composite 20 is appropriately determined by, for example, the types and blending ratios of the components of the thermosetting resin composition, the method for producing the metal member 24, and the method for producing the housing 10 including the resin member 22. It is possible to control to the above numerical range by selecting In addition, as a method for manufacturing the housing 10, for example, adopting a manufacturing method illustrated in FIG. 4 to be described later is considered important from the viewpoint of controlling each characteristic of the resin member 22. The reason for this is not clear, but when the fibrous filler is included in the resin member 22, it is estimated as one of the factors that the orientation of the fibrous filler can be controlled.

  The rotor 30 is accommodated in the housing 10 and is rotatably arranged at a position eccentric with respect to the housing 10. In FIG. 2, a case where the rotor shaft 36 of the rotor 30 is rotatably supported by the bearing portion 16 provided in the housing 10 is illustrated. In addition, the rotor 30 is provided with a vane groove 34 that is a groove for slidably fitting the vane 32. The vane groove 34 can be provided, for example, so as to pass through the center of the rotor 30 and penetrate the rotor 30 in the radial direction. The configuration of the vane groove 34 is not limited to this, and for example, a plurality of vane grooves 34 may be provided in the rotor 30 radially.

  The vane 32 is provided so as to be in sliding contact with a portion of the inner wall surface 12 of the housing 10 that is configured by the resin member 22. In FIG. 1, the case where both ends of the vane 32 are in sliding contact with the inner side surface 122 constituted by the resin member 22 is illustrated. The vane 32 is slidably fitted in the vane groove 34 of the rotor 30. As a result, the rotor 30 rotates and both ends of the vane 32 can be slid on the inner side surface 122 of the housing 10. The vane 32 may have an end portion that contacts the inner surface 122 made of a material different from a portion other than the end portion.

  The edge part which touches the inner surface 122 at least among the vanes 32 is comprised by the aluminum die-casting, for example. Thereby, the slidability with respect to the inner surface 122 can be improved.

  The pump 100 has a plurality of pump chambers 14 partitioned by a rotor 30 and a vane 32 in, for example, the housing 10. In the example shown in FIGS. 1 and 2, for example, two pump chambers 14 are formed in the housing 10. In this case, the air supplied from the intake port 40 to the one pump chamber 14 is compressed as the rotor 30 rotates. And the compressed air is discharged | emitted from the exhaust port 42 outside. By repeating this, the space connected to the intake port 40 is decompressed.

<Metal member>
Next, the metal member 24 constituting the housing 10 will be described.
Although the metal material which comprises the metal member 24 is not specifically limited, For example, 1 type, or 2 or more types selected from iron, stainless steel, aluminum, an aluminum alloy, magnesium, magnesium alloy, copper, and a copper alloy can be included. Among these, it is more preferable that the metal member 24 is made of a metal material containing Al from the viewpoint of reducing the weight of the housing 10 and improving the strength and heat dissipation. Examples of the metal material containing Al include aluminum and aluminum alloys. The aluminum alloy can contain one or more metals other than Al. Although it does not specifically limit as another metal, For example, Cu, Si, Fe, Cr, Mg, Zn, Mn, Ni, Sn, Pb, Ti etc. are mentioned.
The metal member 24 can have a shape corresponding to the housing 10 by processing the above-described metal material by a known processing method, for example.

  For example, the metallic member 24 preferably has a glossiness of 0.1 or more and 30 or less at least on the joint surface with the resin member 22. Here, the glossiness of the metal member 24 indicates a value at a measurement angle of 60 ° measured in accordance with ASTM-D523. Thereby, it is possible to improve the bonding strength between the metal member 24 and the resin member 22 and contribute to the improvement of the thermal conductivity and temperature cycle resistance of the housing 10. The reason why the bonding strength between the metal member 24 and the resin member 22 is improved by setting the gloss level within the above range is not clear, but the bonding surface of the metal member 24 has a strong anchor effect with the resin member 22. This is probably because the structure can be expressed. From the viewpoint of improving the bonding strength, the glossiness is more preferably 0.5 or more and 25 or less, and particularly preferably 1 or more and 20 or less. The glossiness of the metal member 24 can be measured using, for example, a digital glossiness meter (20 °, 60 °) (GM-26 type, manufactured by Murakami Color Research Laboratory). On the other hand, the glossiness at the joint surface of the metal member 24 may not be within the above numerical range.

FIG. 3 is a cross-sectional view showing a part of the metal member 24 of the pump 100 shown in FIG.
In FIG. 3, the case where the metal member 24 has the several recessed part 201 in the joining surface with the resin member 22 at least is illustrated. In the example shown in FIG. 3, at least a part of the cross-sectional shape of the plurality of recesses 201 is such that at least a part between the opening 203 and the bottom 205 of the recess 201 is larger than the cross-sectional width D1 of the opening 203. The shape has a large cross-sectional width D2. When the cross-sectional shape of the recess 201 is such a shape, the resin member 22 is caught between the opening 203 and the bottom 205 of the recess 201, so that the anchor effect is effective. Thereby, the joining strength of the metal member 24 and the resin member 22 can be improved more effectively, and it becomes possible to contribute to the improvement of the thermal conductivity and temperature cycle resistance of the housing 10. On the other hand, on the joint surface of the metal member 24, a recess 201 having a shape in which at least a part between the opening 203 and the bottom 205 has a cross-sectional width D2 larger than the cross-sectional width D1 of the opening 203 is formed. It does not have to be provided.

For example, the metal member 24 preferably has a surface roughness Ra of 1.0 μm or more and 40.0 μm or less at the joint surface with the resin member 22. Thereby, it becomes possible to improve the bonding strength between the resin member 22 and the metal member 24 more effectively and contribute to the improvement of the thermal conductivity and the temperature cycle resistance of the housing 10. From the viewpoint of improving the bonding strength, the surface roughness Ra of the bonding surface of the metal member 24 is more preferably 1.0 μm or more and 20.0 μm or less, and preferably 1.0 μm or more and 10.0 μm or less. Particularly preferred.
In addition, the metal member 24 preferably has a 10-point average roughness Rz of, for example, 1.0 μm or more and 40.0 μm or less on the joint surface with the resin member 22. Thereby, it becomes possible to improve the bonding strength between the resin member 22 and the metal member 24 more effectively and contribute to the improvement of the thermal conductivity and the temperature cycle resistance of the housing 10. From the viewpoint of improving the bonding strength of the metal member 24, the 10-point average roughness Rz of the bonded surface is more preferably 5.0 μm or more and 30.0 μm or less.
In addition, Ra and Rz in the said joint surface of the metal member 24 do not need to be in the said numerical range. Ra and Rz can be measured according to JIS-B0601.

For example, the ratio of the actual surface area by the nitrogen adsorption BET method to the apparent surface area (hereinafter also simply referred to as the specific surface area) of the metal member 24 at least on the joint surface with the resin member 22 is preferably 100 or more, more preferably. 150 or more. When the specific surface area is equal to or greater than the lower limit, the bonding strength between the resin member 22 and the metal member 24 can be further improved. The reason for this is not clear, but the contact area between the resin member 22 and the metal member 24 increases, and as a result, the region where the resin member 22 and the metal member 24 enter each other increases, resulting in an increase in the region where the anchor effect works. it is conceivable that.
On the other hand, the specific surface area is preferably 400 or less, more preferably 380 or less, and particularly preferably 300 or less. When the specific surface area is not more than the upper limit, the bonding strength between the resin member 22 and the metal member 24 can be further improved. The reason for this is not clear, but the following reasons can be considered as one factor. That is, by setting the specific surface area to be equal to or less than the upper limit value, the ratio of the metal member 24 in the region where the resin member 22 and the metal member 24 have entered each other is suppressed, and the mechanical strength in the region is reduced. Can be improved. As a result, it is considered that the bonding strength between the resin member 22 and the metal member 24 is further improved.
Thus, by improving the bonding strength between the metal member 24 and the resin member 22, it is possible to contribute to the improvement of the thermal conductivity and the temperature cycle resistance of the housing 10.

  Here, the apparent surface area means a surface area when it is assumed that the surface of the metal member 22 is smooth without unevenness. When the surface shape is rectangular, it can be expressed by vertical length × horizontal length. On the other hand, the actual surface area by the nitrogen adsorption BET method means the BET surface area obtained from the adsorption amount of nitrogen gas. For example, using a specific surface area / pore distribution measuring device (BELSORPmini II, manufactured by Nippon Bell Co., Ltd.) for a vacuum dried sample to be measured, the nitrogen adsorption / desorption amount at liquid nitrogen temperature is measured, and based on the nitrogen adsorption / desorption amount The BET surface area can be calculated.

  The metal member 24 can be subjected to chemical treatment on the surface using, for example, a surface treatment agent. In this embodiment, factors such as (1) combination of metal member and chemical treatment agent, (2) temperature and time of chemical treatment, and (3) post-treatment of the surface of the metal member after chemical treatment are advanced. By controlling so, the metal member 24 exhibiting particularly excellent characteristics as a member used for the casing 10 of the pump 100 can be realized. By performing a surface treatment in which these factors are highly controlled, for example, the glossiness, Ra, Rz, and specific surface area at the joint surface of the metal member 24 with the resin member 22 are in the numerical ranges as described above, and the cross section of the recess It becomes possible to make the shape as described above.

The surface treatment for the metal member 24 can be performed, for example, as follows.
First, (1) a combination of the metal member 24 and the surface treatment agent is selected.
When using the metal member 24 composed of iron or stainless steel, it is preferable to select an aqueous solution in which an inorganic acid, a chlorine ion source, a cupric ion source, and a thiol compound are combined as necessary.
When using the metal member 24 composed of aluminum or an aluminum alloy, it is preferable to select an aqueous solution in which an alkali source, an amphoteric metal ion source, a nitrate ion source, and a thiol compound are combined as necessary.
When the metal member 24 composed of magnesium or a magnesium alloy is used, an alkali source is used, and it is particularly preferable to select an aqueous solution of sodium hydroxide.
In the case of using a metal member 24 composed of copper or a copper alloy, inorganic acids such as nitric acid and sulfuric acid, organic acids such as unsaturated carboxylic acids, persulfates, hydrogen peroxide, imidazole and derivatives thereof, tetrazole and derivatives thereof Azoles such as aminotetrazole and derivatives thereof, aminotriazole and derivatives thereof, pyridine derivatives, triazines, triazine derivatives, alkanolamines, alkylamine derivatives, polyalkylene glycols, sugar alcohols, cupric ion sources, chloride ion sources, phosphones It is preferable to select an aqueous solution using at least one selected from an acid chelating agent, an oxidizing agent, and N, N-bis (2-hydroxyethyl) -N-cyclohexylamine.

  Next, (2) the metal member 24 is immersed in a surface treatment agent, and the surface of the metal member 24 is chemically treated. At this time, the processing temperature is, for example, 30 ° C. The treatment time is appropriately determined depending on the material and surface state of the metal member 24 to be selected, the type and concentration of the surface treatment agent, the treatment temperature, and the like, and is, for example, 30 seconds to 300 seconds. At this time, it is important that the etching amount of the metal member 24 in the depth direction is preferably 3 μm or more, more preferably 5 μm or more. The etching amount in the depth direction of the metal member 24 can be evaluated by calculating from the weight, specific gravity and surface area of the dissolved metal member 24. The etching amount in the depth direction can be adjusted by the type and concentration of the surface treatment agent, the treatment temperature, the treatment time, and the like.

  Next, (3) post-treatment is performed on the surface of the metal member 24 after chemical treatment. First, the metal member surface is washed with water and dried. Next, the chemically treated metal member surface is treated with an aqueous nitric acid solution or the like. In the present embodiment, for example, the metal member 24 subjected to the surface treatment with the chemical solution can be obtained.

<Resin member>
Next, the resin member 22 constituting the housing 10 will be described.
The resin member 22 is formed using a thermosetting resin composition. In the present embodiment, for example, the resin member 22 is formed by curing a thermosetting resin composition described later.

As the resin member 22, for example, one having a specific gravity smaller than that of Al can be used. The specific gravity of the resin member 22 is not particularly limited, but is preferably 2.6 g / cm ³ or less, for example, and preferably 2.0 g / cm ³ or less. Thereby, weight reduction of the pump 100 can be achieved. The specific gravity of the resin member 22 can be measured in accordance with, for example, JIS K6911. The specific gravity of the resin member 22 matches the specific gravity of the cured product of the thermosetting resin composition used to form the resin member 22.

  For the resin member 22, for example, the average value of the coefficient of friction measured using the JIS K7218 A method under the conditions of a pressure of 2 MPa, a test speed of 0.1 m / s, and a test time of 60 minutes from the start of measurement to 60 minutes is 0.00. 55 or less. Thereby, the slidability with respect to the resin member 22 of the vane 32 can be improved more effectively. For this reason, it becomes possible to implement | achieve the pump 100 excellent in pump performance, drive efficiency, long-term durability, etc. From the viewpoint of improving the pump performance, the average value of the friction coefficients is more preferably 0.52 or less, and particularly preferably 0.50 or less. The measurement of the friction coefficient is performed on the measurement sample by, for example, producing a measurement sample using the surface constituting the inner wall surface 12 of the housing 10 from the resin member 22 peeled off from the pump 100. be able to. For example, cylindrical S45C can be used as a counterpart material for measurement.

  The resin member 22 has an average value of 200 ° C. from the measurement start 30 minutes to 60 minutes of the sample temperature measured using, for example, JIS K7218 A method under conditions of a pressure of 2 MPa, a test speed of 0.1 m / s, and a test time of 60 minutes. It is as follows. Thereby, the heat resistance of the pump 100 can be improved. Moreover, the slidability with respect to the resin member 22 of the vane 32 can be improved more effectively. For this reason, the pump 100 excellent in pump performance, drive efficiency, long-term durability, etc. can be realized. From the viewpoint of improving the pump performance, the average value of the sample temperature is more preferably 150 ° C. or less, and particularly preferably 120 ° C. or less. The sample temperature is measured by, for example, preparing a measurement sample using the surface constituting the inner wall surface 12 of the housing 10 as a measurement surface from the resin member 22 peeled off from the pump 100, and performing this measurement on the measurement sample. be able to. For example, cylindrical S45C can be used as a counterpart material for measurement.

  For example, the resin member 22 has a thermal conductivity of 0.3 W / (m · K) or more. Thereby, the heat dissipation of the resin member 22 can be improved. For this reason, for example, heat such as friction heat generated inside can be easily radiated to the outside. From the viewpoint of improving heat dissipation, the thermal conductivity is more preferably 0.35 W / (m · K) or more. The thermal conductivity is measured by, for example, preparing a measurement sample having a thickness of 2 mm from the resin member 22 peeled off from the pump 100, and measuring the thermal conductivity in the thickness direction of the measurement sample using a laser flash method. This can be done by measuring.

  The friction coefficient, the sample temperature, and the thermal conductivity of the resin member 22 are the same as the types and blending ratios of the components of the thermosetting resin composition, and the method for manufacturing the housing 10 including the resin member 22. It is possible to control to the above numerical range by appropriately selecting. As a manufacturing method of the housing 10, for example, adopting a manufacturing method illustrated in FIG. 4 described later is considered to be important from the viewpoint of controlling each characteristic of the resin member 22. The reason for this is not clear, but when the fibrous filler is included in the resin member 22, it is estimated as one of the factors that the orientation of the fibrous filler can be controlled.

The thermosetting resin composition that forms the resin member 22 includes a thermosetting resin (A).
The thermosetting resin composition is, for example, in the form of powder or tablet. The term “powdered” refers to a powdered form, a granular form, and a case containing both a powdery form and a granular form.

(Thermosetting resin (A))
The thermosetting resin (A) includes, for example, phenol resin, epoxy resin, unsaturated polyester resin, diallyl phthalate resin, melamine resin, oxetane resin, maleimide resin, urea (urea) resin, polyurethane resin, silicone resin, benzoxazine ring. 1 type or 2 types or more selected from resin to have, cyanate ester resin, etc. can be included. Among these, the aspect containing the phenol resin which is excellent in heat resistance, workability, mechanical characteristics, electrical characteristics, adhesiveness, and wear resistance can be suitably employed.

  The phenol resin is, for example, a novolak type phenolic resin such as a phenol novolak resin, a cresol novolak resin, a bisphenol A type novolak resin; One or two or more types selected from a resol type phenol resin such as a resol phenol resin; an aryl alkylene type phenol resin and the like can be included. Among these, from the viewpoint of improving the slidability and thermal conductivity and contributing to the improvement of the performance of the pump, improving the availability, reducing the cost, and improving the workability by roll kneading, the novolac type phenol It is more preferable to include at least one of a resin and a resol type phenol resin, and it is particularly preferable to include a novolac type phenol resin. Further, for example, an embodiment including both a novolac type phenol resin and a resol type phenol resin can also be adopted as one of preferable embodiments from the viewpoint of eliminating the curing agent described later.

  When the phenol resin includes a novolac type phenol resin, for example, hexamethylenetetramine can be used as a curing agent. Although the content of hexamethylenetetramine is not particularly limited, for example, it is preferably 10 parts by mass or more and 25 parts by mass or less, and 13 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the novolac type phenol resin. More preferred. By setting the content of hexamethylenetetramine to the above lower limit value or more, the curing time at the time of molding can be shortened. Moreover, the external appearance of a molded article can be improved by making content of hexamethylenetetramine below the said upper limit.

  The content of the thermosetting resin (A) is preferably, for example, 15% by mass or more, and more preferably 25% by mass or more with respect to the entire thermosetting resin composition. Thereby, the fluidity | liquidity at the time of shape | molding a thermosetting resin composition can be aimed at. On the other hand, the content of the thermosetting resin (A) is preferably 60% by mass or less, and more preferably 50% by mass or less, for example, with respect to the entire thermosetting resin composition. Thereby, the heat resistance and moisture resistance of the housing | casing 10 can be improved more effectively.

(Filler (B))
A thermosetting resin composition can contain a filler (B), for example. Thereby, the mechanical strength, heat resistance, moisture resistance, slidability, etc. of the resin member 22 can be improved.
Filler (B) is, for example, graphite, fluorine resin such as polytetrafluoroethylene, clay, talc, calcium carbonate, zinc oxide, calcium silicate hydrate, mica, glass flake, glass powder, magnesium carbonate, silica, oxidation Titanium, alumina, aluminum hydroxide, magnesium hydroxide, barium sulfate, calcium sulfate, calcium sulfite, zinc borate, barium metaborate, aluminum borate, calcium borate, sodium borate, aluminum nitride, boron nitride, silicon nitride, And one or more selected from fibrous fillers. As fibrous fillers, glass fiber, carbon fiber, asbestos fiber, metal fiber, wollastonite, attapulgite, sepiolite, rock wool, aluminum borate whisker, potassium titanate fiber, calcium carbonate whisker, titanium oxide whisker, ceramic fiber And fibrous inorganic fillers such as aramid fibers, polyimide fibers, and polyparaphenylene benzobisoxazole fibers. Among these, from the viewpoint of improving the balance of mechanical strength, heat resistance, moisture resistance, and slidability of the resin member 22, the resin member 22 is selected from graphite, polytetrafluoroethylene, glass fiber, carbon fiber, and clay. It is more preferable to include one or two or more, and it is particularly preferable to include two or more of these.

  In the present embodiment, it is particularly preferable from the viewpoint of improving slidability that the thermosetting resin composition contains a filler (B) that functions as a solid lubricant. Examples of the filler (B) that functions as a solid lubricant include graphite, carbon fiber, and fluororesin such as polytetrafluoroethylene.

  The content of the filler (B) is, for example, preferably 30% by mass or more, and more preferably 40% by mass or more with respect to the entire thermosetting resin composition. Thereby, the mechanical strength, heat resistance, moisture resistance, and slidability of the resin member 22 obtained using the thermosetting resin composition can be improved more effectively. On the other hand, the content of the filler (B) is, for example, preferably 80% by mass or less, and more preferably 70% by mass or less, with respect to the entire thermosetting resin composition. Thereby, the fluidity | liquidity of a thermosetting resin composition can be improved and the thermosetting resin composition excellent in the moldability is realizable.

(Coupling agent (C))
A thermosetting resin composition can contain a coupling agent (C), for example. Thereby, the adhesiveness of the resin member 22 and the metal member 24 can be improved. Moreover, the dispersibility of a filler (B) can be improved and it can contribute to the improvement of the mechanical strength of the resin member 22, etc.

  The coupling agent (C) can contain, for example, a silane coupling agent. Examples of the silane coupling agent include epoxy group-containing alkoxysilane compounds such as γ-glycidoxypropyltrimethoxysilane, γ-glycidoxypropyltriethoxysilane, and β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane; Mercapto group-containing alkoxysilane compounds such as γ-mercaptopropyltrimethoxysilane and γ-mercaptopropyltriethoxysilane; γ-ureidopropyltriethoxysilane, γ-ureidopropyltrimethoxysilane, γ- (2-ureidoethyl) aminopropyl Ureido group-containing alkoxysilane compounds such as trimethoxysilane; γ-isocyanatopropyltriethoxysilane, γ-isocyanatopropyltrimethoxysilane, γ-isocyanatopropylmethyldimethoxysilane, γ Isocyanato group-containing alkoxysilane compounds such as isocyanatopropylmethyldiethoxysilane, γ-isocyanatopropylethyldimethoxysilane, γ-isocyanatopropylethyldiethoxysilane, γ-isocyanatopropyltrichlorosilane; γ-aminopropyltriethoxysilane Amino group-containing alkoxysilane compounds such as γ- (2-aminoethyl) aminopropylmethyldimethoxysilane, γ- (2-aminoethyl) aminopropyltrimethoxysilane, γ-aminopropyltrimethoxysilane; One or more selected from hydroxyl group-containing alkoxysilane compounds such as methoxysilane and γ-hydroxypropyltriethoxysilane can be included.

  The content of the coupling agent (C) is, for example, preferably 0.01% by mass or more and 4% by mass or less, and more preferably 0.1% by mass or more and 1% by mass or less with respect to the entire thermosetting resin composition. It is more preferable. Thereby, it becomes possible to improve the adhesiveness of the resin member 22 and the metal member 24, and the mechanical strength of the resin member 22 more effectively.

  The thermosetting resin composition can further contain a curing aid such as slaked lime or magnesium oxide. In addition to the above components, the thermosetting resin composition is selected from, for example, elastomers, curing agents, release agents, pigments, flame retardants, weathering agents, antioxidants, plasticizers, lubricants, and foaming agents. One or more additives may be further included. The thermosetting resin composition can be obtained by mixing a mixture obtained by, for example, mixing the components uniformly, with a kneading apparatus alone such as a roll, a kneader, or a twin screw extruder, or with a roll and another kneading apparatus. After being melted and kneaded in a combination of the above, it can be cooled, granulated or pulverized, and further classified if necessary.

  In the thermosetting resin composition, for example, the thermal conductivity of a cured film obtained by heating at 175 ° C. for 3 minutes is 0.3 W / m · K or more. Thereby, it becomes easy to control the heat conductivity of the resin member 22 to a desired value, and it can contribute to the improvement of the heat dissipation of the resin member 22. From the viewpoint of improving the heat dissipation of the resin member 22, the thermal conductivity is more preferably 0.35 W / (m · K) or more. In this embodiment, for example, a test piece having a thickness of 2 mm produced by molding a thermosetting resin composition under the conditions of an effective pressure of 20 MPa, a mold temperature of 175 ° C., and a curing time of 3 minutes using a compression molding machine, The thermal conductivity in the thickness direction measured using the laser flash method can be set as the thermal conductivity. The thermal conductivity can be controlled, for example, by appropriately adjusting the type and blending ratio of each component of the thermosetting resin composition.

<Pump manufacturing method>
Next, a method for manufacturing the pump 100 will be described.
First, the housing 10 is manufactured. The housing 10 is obtained by forming a resin member 22 by molding a thermosetting resin composition on a metal member 24 obtained by processing a metal material, for example. Molding of the thermosetting resin composition is not particularly limited, and can be performed using, for example, an injection molding method, a transfer molding method, a compression molding method, an injection compression molding method, or the like.

FIG. 4 is a cross-sectional view illustrating an example of a method for manufacturing the pump 100 according to the present embodiment.
In the present embodiment, the housing 10 constituted by the resin-metal composite 20 can be formed, for example, by the manufacturing method shown in FIG. Thereby, as will be described later, each characteristic of the resin member 22 and the resin-metal composite 20 can be improved. 4 schematically shows the structure of each member, and the structure of each member is not limited to that shown in FIG.
The manufacturing method shown in FIG. 4 is performed as follows, for example.

  First, the metal member 24 is produced. The metal member 24 can be produced by the method exemplified above. In the example shown in FIG. 4, a plurality of metal members 24 that are combined with each other to form one housing 10 are manufactured. In this case, in the step of molding a thermosetting resin composition to be described later, the plurality of metal members 24 and the resin member 22 are joined and integrated to form the housing 10. .

  Next, a molding die 3 shown in FIG. The molding die 3 according to this embodiment includes a second mold part 2 (upper mold) and a first mold part 1 (lower mold). By combining the second mold part 2 and the first mold part 1, a molding space 66 in which the metal member 100 is arranged in a subsequent process is formed. In addition, the second mold part 2 is inserted into the pot 60 for charging the thermosetting resin composition 68 before molding, and then inserted into the pot 60 to melt the thermosetting resin composition 68 under pressure. A plunger 64 provided with an auxiliary ram and a sprue 62 for feeding the molten thermosetting resin composition 68 into the molding space 66 are provided. Note that the molding die 3 according to the present embodiment is a pot type transfer molding machine that does not include an auxiliary ram, even if it is applied to a plunger type transfer molding machine that includes an auxiliary ram as shown in FIG. It may be applied (not shown).

  Next, as shown in FIG. 4B, the plurality of metal members 24 are arranged in the molding space 66 of the molding die 3. Specifically, the first mold part 1 is lowered, and the plurality of metal members 24 are arranged without being fixed to a part corresponding to the molding space 66 in a state where the molding die 3 is opened. Thereby, when the molten thermosetting resin composition 68 is introduced into the molding space 66, the metal member 24 is moved to either the second mold part 2 or the first mold part 1 by the flow pressure of the introduced resin. Can be pressed against the wall surface (molding surface) of the mold member. In the present embodiment, each metal member 24 is pressed against the wall surface of the first mold part 1. For this reason, generation | occurrence | production of the burr | flash by resin entering from the clearance gap between the metal margin 24 and a metal mold | die wall surface can also be prevented.

  Next, as shown in FIG.4 (c), the thermosetting resin composition 68 is filled in the molding space 66 as follows. First, the first mold part 1 is raised, the first mold part 1 and the second mold part 2 are clamped, and the molding die 3 is closed. The resin composition 68 is charged. Although the property of the thermosetting resin composition 68 before molding is not particularly limited, it may remain in a granular form, may be molded into a tablet shape, or is preheated by a preheater or the like in advance. It may be in a semi-molten state. Next, in order to melt the thermosetting resin composition 68 charged in the pot 60, a pressure is applied to the thermosetting resin composition 68 by inserting a plunger 64 having an auxiliary ram into the pot 60. Next, the molten thermosetting resin composition 68 is introduced into the molding space 66 through the sprue 62. The thermosetting resin composition 68 introduced into the molding space 66 flows in the direction indicated by the dotted line shown in FIG. At this time, the metal member 24 is pressed against the first mold part 1 by the flow pressure of the thermosetting resin composition 68, and the metal member 24 is apparently fixed to the wall surface of the first mold part 1. Can do. The melting of the thermosetting resin composition 68 in the pot 60 and the introduction and filling of the molten thermosetting resin composition 68 into the molding space 66 are performed simultaneously.

Next, as shown in FIG. 4D, the thermosetting resin composition 68 filled in the molding space 66 is cured by heating and pressing. Thereby, the resin member 22 comprised with the hardened | cured material of the thermosetting resin composition 68 will be formed. In addition, the resin member 22 is formed, and the resin member 22 and the metal member 24 are joined to each other to form the resin-metal composite 20, thereby forming the housing 10.
In this step, the thermosetting resin composition 68 introduced into the molding space 66 proceeds in one direction without flowing back. As a result, the slidability, thermal conductivity, strength, and durability of the resin member 22 and the thermal conductivity, strength, and durability of the resin metal composite 20 can be improved. The reason for this is not clear, but for example, when a fibrous filler is contained in the thermosetting resin composition 68, the thermosetting resin composition 68 is allowed to proceed in one direction without backflow. It is estimated that one of the factors is that the orientation of the fibrous filler in the cured resin member 22 can be controlled uniformly.

  In the above-described step of filling the molding space 66 with the thermosetting resin composition 68, it is more preferable to introduce the molten thermosetting resin composition 68 into the molding space 66 after degassing the molding space 66. preferable. Thereby, possibility that a void will arise in the resin member 22 can be reduced. For this reason, the resin metal composite 20 which is further excellent in thermal conductivity and mechanical strength can be obtained.

  Next, after the thermosetting resin composition 68 is cured, the molding die 3 is opened to obtain the resin-metal composite body 20 having a good quality in which the generation of burrs can be suppressed. Note that the cured product (cal) of the thermosetting resin composition 68 remaining in the pot 60 and the cured product in the sprue 62 are pulled up by the plunger 64 before opening the molding die 3, thereby forming the resin-metal composite 20. Separated. In the present embodiment, for example, the housing 10 constituted by the resin-metal composite 20 can be formed in this manner.

After producing the housing 10, the rotor 30 having the vane grooves 34 and the vanes 32 disposed in the vane grooves 34 are accommodated in the housing 10. At this time, the vane 32 is disposed so that the vane 32 is in sliding contact with the portion of the inner wall surface 12 of the housing 10 formed by the resin member 22. Next, the cover 50 is attached to the housing 10.
In the present embodiment, for example, the pump 100 is manufactured in this manner.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
Hereinafter, examples of the reference form will be added.
1. It is comprised by the resin metal composite formed by joining the resin member and metal member which are formed using a thermosetting resin composition, and at least one part of an inner wall surface is comprised by the said resin member. A housing,
A sliding contact member that is accommodated in the housing and that is in sliding contact with a portion of the inner wall surface that is configured by the resin member;
With pump.
2. 1. In the pump described in
The resin member has a friction coefficient measured using JIS K7218 A method under a pressure of 2 MPa, a test speed of 0.1 m / s, and a test time of 60 minutes, with an average value of 0.55 from 30 minutes to 60 minutes from the start of measurement. The pump that is below.
3. 1. Or 2. In the pump described in
The resin member has an average value of 200 ° C. or less from 30 minutes to 60 minutes from the start of measurement of the sample temperature measured using JIS K7218 A method under the conditions of pressure 2 MPa, test speed 0.1 m / s, test time 60 minutes. Is a pump.
4). 1. ~ 3. In the pump according to any one of the above:
The resin metal composite having the same thickness of the resin member and the metal member has a thermal conductivity of 0.5 W / (m · K) in the lamination direction of the resin member and the metal member measured by a laser flash method. ) The pump that is above.
5). 1. ~ 4. In the pump according to any one of the above:
The resin member has a thermal conductivity of 0.3 W / (m · K) or more.
6). 1. ~ 5. In the pump according to any one of the above:
The said thermosetting resin composition is a pump containing a phenol resin.
7). 1. ~ 6. In the pump according to any one of the above:
The metal member is a pump containing Al.
8). 1. ~ 7. In the pump according to any one of the above:
The resin member is a pump including a filler.
9. 1. ~ 8. In the pump according to any one of the above:
The metal member is a pump whose glossiness at a measurement angle of 60 ° C. measured in accordance with ASTM-D523 of the joint surface with the resin member is 0.1 or more and 30 or less.
10. 1. ~ 9. In the pump according to any one of the above:
The metal member has a plurality of recesses in the joint surface with the resin member,
The cross-sectional shape of at least a part of the plurality of recesses is a pump in which at least a part from the opening to the bottom of the recess has a cross-sectional width larger than the cross-sectional width of the opening.
11. 1. -10. In the pump according to any one of the above:
The said metal member is a pump whose ratio of the actual surface area by the nitrogen adsorption BET method with respect to the apparent surface area of the joint surface with the said resin member is 100-400.
12 It is comprised by the resin metal composite formed by joining a resin member and a metal member, and at least one part of the inner wall surface is comprised by the said resin member, and is accommodated in the said housing | casing And a resin composition used for forming the resin member of a pump comprising a sliding contact member that is in sliding contact with a portion constituted by the resin member of the inner wall surface,
A resin composition containing a thermosetting resin.

  Next, examples of the present invention will be described.

<Example 1>
(Preparation of thermosetting resin composition)
34.3% by mass of novolac type phenolic resin (PR-51305, manufactured by Sumitomo Bakelite Co., Ltd.), 6.0% by mass of hexamethylenetetramine, glass fiber (manufactured by Nitto Boseki Co., Ltd., average particle size: 11 μm, average) Major axis: 3 mm, average aspect ratio: 270) 57.1% by mass, magnesium oxide (manufactured by Kamishima Chemical Co., Ltd.) 0.5% by mass, γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd.) ) 0.2% by mass and 1.8% by mass of other components such as a lubricant are each dry-mixed, melted and kneaded with a heating roll at 90 ° C., cooled into a sheet, and pulverized Thus, a granular thermosetting resin composition was obtained.

(Manufacture of metal members for housing)
First, two aluminums each processed into one and the other shapes obtained by dividing a casing of a pump, which will be described later, on one surface parallel to the rotation axis of the rotor, and having A5052 (specific gravity 2.68 g / cm ³ ). An alloy member was prepared. Next, the surfaces of these aluminum alloy members were sufficiently polished with # 4000 polishing paper. Next, an aqueous solution of potassium hydroxide (16 mass%), zinc chloride (5 mass%), sodium nitrate (5 mass%), and sodium thiosulfate (13 mass%) was prepared. The aluminum alloy member was immersed and swung in the obtained aqueous solution (30 ° C.), and dissolved in the depth direction by 15 μm (calculated from the reduced weight of aluminum). Subsequently, it was washed with water, immersed in a 35% by mass nitric acid aqueous solution (30 ° C.) and rocked for 20 seconds. Then, it washed with water and dried and obtained the two metal members for cases which consist of the said aluminum alloy member.

(Production of pump)
First, the housing | casing comprised by the resin metal composite was produced using the obtained said thermosetting resin composition and the said metal member for housing | casing. Specifically, it was produced by the following procedure using the molding die shown in FIG. First, the two casing metal members obtained above were placed in the lower mold without being fixed. Here, each housing metal member is disposed at a position to be a molding space to be described later so as to be in contact with the side surface of the lower mold. Next, the upper mold and the lower mold were clamped to form a molding space in which the casing metal member was disposed between the upper mold and the lower mold. Next, the thermosetting resin composition melted in the pot was injected into the molding space through a sprue to mold the thermosetting resin composition. In addition, melting of the thermosetting resin composition in the pot and introduction of the thermosetting resin composition into the molding space were simultaneously performed. The thermosetting resin composition was molded under conditions of an injection pressure of 6.9 MPa, a mold temperature of 175 ° C., and a curing time of 120 seconds. Thereby, the housing | casing comprised by the resin metal composite formed by joining the resin member comprised by the thermosetting resin composition and the metal member for housing | casing was obtained. In addition, as for the obtained housing | casing, the inner side including an inner wall face was comprised by the resin member (thickness 3mm), and the outer side containing an outer wall surface was comprised by the metal member for cases (thickness 3mm). Further, as shown in FIG. 1 and FIG. 2, the obtained casing is hollow inside, one end side is opened, and a through hole serving as a bearing portion for fixing the rotor shaft is provided on the other end side. It was a substantially elliptical column shape.

  Next, a rotor having a vane which is a sliding contact member was rotatably arranged in the casing obtained above. At this time, the vane and the rotor were arranged so that the vane was in sliding contact with the portion of the inner wall surface of the housing that was formed by the resin member. Moreover, the edge part which slidably contacts the inner wall surface of the housing | casing among vanes was comprised by the aluminum die-casting. Next, the cover was fixed to one end side of the substantially elliptical columnar casing. As a result, a pump was obtained.

(Surface observation)
The surface of the metal member for housing | casing was image | photographed with the electron microscope (SEM), and the joint surface with the resin member of the metal member for housing | casing was observed. As for the metal member for housing | casing, the said joint surface was roughened and it had several recessed part in the said joint surface. In addition, the cross-sectional shape of some of the recesses was such that at least a part from the opening to the bottom of the recess had a cross-sectional width larger than the cross-sectional width of the opening.

(Glossiness)
Using a digital gloss meter (20 °, 60 °) (GM-26, manufactured by Murakami Color Research Laboratory Co., Ltd.), the surface gloss of the metal member for the housing is measured at an angle according to ASTM-D523. Measurements were made at 60 ° (incident angle 60 °, reflection angle 60 °). The glossiness of the casing metal member was 10.

(Specific surface area)
The metal member for housing was vacuum-dried at 120 ° C. for 6 hours, and then the nitrogen adsorption / desorption amount at the liquid nitrogen temperature was measured using an automatic specific surface area / pore distribution measuring device (BELSORPmini II, manufactured by Nippon Bell Co., Ltd.). The actual surface area by the nitrogen adsorption BET method was calculated from the BET plot. The specific surface area was calculated by dividing the actual surface area measured by the nitrogen adsorption BET method by the apparent surface area. The specific surface area of the casing metal member was 270.

(Surface roughness of metal members for housing)
The surface shape of the joint surface with the resin member of the metal member for housing at a magnification of 20 was measured using an ultra-deep shape measuring microscope (VK9700 manufactured by Keyence Corporation). As for the surface roughness, Ra and Rz were measured. Ra and Rz were measured according to JIS-B0601. In the joint surface of the housing metal member, Ra was 4.0 μm and Rz was 15.5 μm.

<Example 2>
(Preparation of thermosetting resin composition)
35.1% by mass of novolac type phenol resin (PR-51305, manufactured by Sumitomo Bakelite Co., Ltd.), 4.9% by mass of hexamethylenetetramine, 57.9% by mass of graphite (manufactured by Nishimura Graphite Co., Ltd.), oxidized 0.4% by mass of magnesium (manufactured by Kamishima Chemical Co., Ltd.), 0.7% by mass of slaked lime (manufactured by Chichibu Lime Industry Co., Ltd.), and 1.1% by mass of other components such as a lubricant, respectively. The mixture was dry-mixed, melted and kneaded with a heating roll at 90 ° C., cooled into a sheet, and pulverized to obtain a granular thermosetting resin composition.

(Manufacture of metal members for housing)
A casing metal member was obtained in the same manner as in Example 1.

(Production of pump)
A pump was obtained in the same manner as in Example 1.

<Example 3>
(Preparation of thermosetting resin composition)
10.7% by mass of novolac type phenolic resin (PR-51305, manufactured by Sumitomo Bakelite Co., Ltd.), 25.3% by mass of resol type phenolic resin, and 1.8% by mass of slaked lime (manufactured by Chichibu Lime Industry Co., Ltd.) , 53.5% by mass of glass fiber (manufactured by Nittobo Co., Ltd., average particle size: 11 μm, average major axis: 3 mm, average aspect ratio: 270), 4.9% by mass of clay (manufactured by Engel Heart), 0.5% by mass of γ-aminopropyltriethoxysilane (manufactured by Shin-Etsu Chemical Co., Ltd.) and 3.3% by mass of other components such as a lubricant were each dry-mixed and heated at 90 ° C. The mixture was melt-kneaded and crushed and cooled to obtain a granular thermosetting resin composition.

  In addition, as a resol type phenol resin, a molar ratio (F / P) = 1.7 of phenol (P) and formaldehyde (F) in a reaction kettle equipped with a reflux condenser agitator, a heating device, and a vacuum dehydration device. Then, 0.5 parts by weight of zinc acetate is added to 100 parts by weight of phenol, the pH of the reaction system is adjusted to 5.5, and the refluxing reaction is performed for 3 hours. Thereafter, the degree of vacuum is 100 Torr, the temperature Steam-distilled at 100 ° C. for 2 hours to remove unreacted phenol, and further reacted at a vacuum of 100 Torr and a temperature of 115 ° C. for 1 hour, and having a number average molecular weight of 800 dimethylene ether type (solid ) Was used as the main component.

(Manufacture of metal members for housing)
A casing metal member was obtained in the same manner as in Example 1.

(Production of pump)
A pump was obtained in the same manner as in Example 1.

<Example 4>
(Preparation of thermosetting resin composition)
34.0% by mass of novolac-type phenolic resin (PR-51305, manufactured by Sumitomo Bakelite Co., Ltd.), 6.0% by mass of hexamethylenetetramine, 21.0% by mass of graphite (manufactured by Nishimura Graphite Co., Ltd.), carbon 30.0% by mass of fiber (manufactured by Zoltech), 1.5% by mass of magnesium oxide (manufactured by Kamishima Chemical Co., Ltd.), and 7.5% by mass of other components such as lubricants were dry mixed. These were melt-kneaded with a heating roll at 90 ° C., crushed and cooled to obtain a granular thermosetting resin composition.

(Manufacture of metal members for housing)
A casing metal member was obtained in the same manner as in Example 1.

(Production of pump)
A pump was obtained in the same manner as in Example 1.

<Comparative Example 1>
(Production of pump)
A case was prepared in which the surface was sufficiently polished with # 4000 polishing paper and the entire body was made of an A5052 (specific gravity 2.68 g / cm ³ ) aluminum alloy. As shown in FIGS. 1 and 2, the casing is hollow inside, is open at one end side, and is provided with a through hole serving as a bearing portion for fixing the rotor shaft at the other end side. It was oval cylindrical. Subsequently, the rotor which has the vane which is a sliding contact member in the housing | casing was fixed. At this time, the rotor was disposed so that the vane slidably contacts the inner wall surface of the casing made of the aluminum alloy. Further, the portion of the vane that is in sliding contact with the inner wall surface of the casing is constituted by aluminum die casting. Next, the cover was fixed to one end side of the substantially elliptical columnar casing. As a result, a pump was obtained.

<Evaluation>
(Specific gravity of cured product of thermosetting resin composition)
About each Example, specific gravity (g / cm < ³ >) of the hardened | cured material of the obtained thermosetting resin composition was measured. The specific gravity was measured according to JIS K6911 for a test piece molded by transfer molding (mold temperature: 180 ° C., time: 3 minutes). The results are shown in Table 1.

(Friction test)
About each Example, the friction test was done as follows, respectively. First, the resin member is peeled off from the pump obtained above, and a measurement sample (30 mm × 50 mm × 2 mm square plate test piece) with the surface constituting the inner wall surface of the housing as the measurement surface is removed from the resin member. Produced. Next, a friction test was performed according to JIS K7218 A method. Cylindrical S45C was used as a counterpart material. The measurement conditions were a pressure of 2 MPa, a test speed of 0.1 m / s, and a test time of 60 minutes. From the obtained measurement results, the average value of the friction coefficient from 30 minutes to 60 minutes from the start of measurement and the average value of the sample temperature from 30 minutes to 60 minutes from the start of measurement are calculated. ). The results are shown in Table 1.

(Case thermal conductivity)
About each Example, the heat conductivity (W / (m * K)) in the lamination direction of the resin member and the metal member for housing | casing of the obtained housing | casing was measured as follows. First, a test piece in which a resin member and a casing metal member were joined was cut out from the casing of the pump produced above. Next, the resin member of the test piece and the metal member for housing were each thinned so that the thickness of the resin member and the metal member for housing was 1: 1. Here, the thickness of the resin member was 1 mm, and the thickness of the metal member for housing was 1 mm. Next, the thermal conductivity in the laminating direction of the resin member and the casing metal member was measured using a laser flash method. The results are shown in Table 1.

(Thermal conductivity of resin members)
About each Example, the thermal conductivity (W / (m * K)) of the obtained resin member was measured as follows. First, the resin member was peeled off from the pump obtained above, and a measurement sample (10 mm × 10 mm × 2 mm thick square plate test piece) was produced from this resin member. Subsequently, the thermal conductivity of the thickness direction was measured about the obtained measurement sample using the laser flash method, and this was made into the thermal conductivity of the resin member.

(Pump performance evaluation)
About each Example and the comparative example, the performance evaluation of the pump was performed as follows, respectively. First, the pump obtained above was driven for 1000 hours. Next, the temperature of the pump after driving for 1000 hours was measured. Here, the temperature rise value is calculated by driving for 1000 hours, the temperature rise value is 100 ° C. or less as ◎, the one exceeding 100 ° C. and 150 ° C. or less as ○, and the one exceeding 150 ° C. as x. Evaluation was performed.

DESCRIPTION OF SYMBOLS 100 Pump 10 Housing | casing 12 Inner wall surface 122 Inner side surface 124 Blocking surface 14 Pump chamber 16 Bearing part 20 Resin metal composite body 22 Resin member 24 Metal member 30 Rotor 32 Vane 34 Vane groove 36 Rotor shaft 40 Inlet 42 Outlet 50 Cover 201 Recess 203 Opening 205 Bottom 1 First mold part 2 Second mold part 3 Mold 60 Pot 62 Sprue 64 Plunger 66 Molding space 68 Thermosetting resin composition

Claims (11)

It is comprised by the resin metal composite formed by joining the resin member and metal member which are formed using a thermosetting resin composition, and at least one part of an inner wall surface is comprised by the said resin member. A housing,
A sliding contact member that is accommodated in the housing and that is in sliding contact with a portion of the inner wall surface that is configured by the resin member;
With
The resin metal composite having the same thickness of the resin member and the metal member has a thermal conductivity of 0.5 W / (m · K) in the lamination direction of the resin member and the metal member measured by a laser flash method. ) The pump that is above. The pump according to claim 1, wherein
The metal member is a pump containing Al. The pump according to claim 1 or 2 ,
The resin member has a friction coefficient measured using JIS K7218 A method under a pressure of 2 MPa, a test speed of 0.1 m / s, and a test time of 60 minutes, with an average value of 0.55 from 30 minutes to 60 minutes from the start of measurement. The pump that is below. In the pump as described in any one of Claims 1-3 ,
The resin member has an average value of 200 ° C. or less from 30 minutes to 60 minutes from the start of measurement of the sample temperature measured using JIS K7218 A method under the conditions of pressure 2 MPa, test speed 0.1 m / s, test time 60 minutes. Is a pump. In the pump as described in any one of Claims 1-4 ,
The resin member has a thermal conductivity of 0.3 W / (m · K) or more. In the pump as described in any one of Claims 1-5 ,
The said thermosetting resin composition is a pump containing a phenol resin. In the pump as described in any one of Claims 1-6 ,
The resin member is a pump including a filler. In the pump according to any one of claims 1-7,
The metal member is a pump whose glossiness at a measurement angle of 60 ° C. measured in accordance with ASTM-D523 of the joint surface with the resin member is 0.1 or more and 30 or less. In the pump as described in any one of Claims 1-8 ,
The metal member has a plurality of recesses in the joint surface with the resin member,
The cross-sectional shape of at least a part of the plurality of recesses is a pump in which at least a part from the opening to the bottom of the recess has a cross-sectional width larger than the cross-sectional width of the opening. In the pump according to any one of claims 1 to 9 ,
The said metal member is a pump whose ratio of the actual surface area by the nitrogen adsorption BET method with respect to the apparent surface area of the joint surface with the said resin member is 100-400. It is comprised by the resin metal composite formed by joining a resin member and a metal member, and at least one part of the inner wall surface is comprised by the said resin member, and is accommodated in the said housing | casing And a slidable contact member slidably contacting a portion of the inner wall surface constituted by the resin member, and a laser flash method of the resin metal composite having the resin member and the metal member having the same thickness. A resin composition used for forming the resin member of a pump having a thermal conductivity in the stacking direction of the resin member and the metal member measured in step of 0.5 W / (m · K) or more. ,
A resin composition containing a thermosetting resin.

Images