JP6985456B2 - Manufacturing method of building materials - Google Patents

Description

The present invention relates to a method for manufacturing a building member such as a fire sash or a fire door installed in an opening of a structure such as a building.

Fire protection is one of the performances required for fittings such as windows, shoji, doors, doors, brans and columns used for openings in buildings such as houses, and a fire protection structure is applied to enhance the fire protection performance. ing. For example, a heat-expandable refractory material is attached to a frame (sash) of a fitting installed in an opening of a building so that a flame does not penetrate. In Patent Document 1, a plurality of sashes inside the sash are attached. A metal reinforcing material to which a sheet-shaped heat-expandable refractory material is attached with an adhesive tape or the like is inserted in the hollow portion.

Japanese Patent No. 4691324

Here, in order to ensure sufficient fire protection performance by the heat-expandable refractory material, each type of reinforcing material having a different size and shape has a corresponding thickness, length, and heat-expandability. It is necessary to attach the fireproof material to the reinforcing material. However, in the work of attaching the sheet-shaped heat-expandable refractory material to the reinforcing material, the heat-expandable refractory material having different thickness, length, thermal expansion property, etc., which should not be originally attached, is mistakenly attached to the reinforcing material. There is a risk. In addition, there is a problem that it is costly to attach the sheet-shaped heat-expandable refractory material to the reinforcing material.

The present invention has been made by paying attention to the above problems, and an object of the present invention is to provide a method for manufacturing a building member capable of exhibiting reliable fire protection performance and reducing costs.

An object of the present invention is a method for manufacturing a building member installed in an opening of a structure and having a hollow portion extending in the longitudinal direction inside , wherein the building member includes a metal member and is made of the metal. A step of supplying the heat-expandable resin composition to at least a part of the reinforcing material, a step of curing or solidifying the heat-expandable resin composition to form a heat-expandable resin composition layer, and the heat-expandable property. A step of inserting a metal reinforcing material on which a resin composition layer is formed into the hollow portion extending in the longitudinal direction is provided, and the heat-expandable resin composition comprises a resin component, a heat-expandable graphite, and the like. Achieved by including, with an inorganic filler.

The building member having the above configuration can be, for example, a fireproof sash that supports a plate material, and in this case, each side of the fireproof sash has the hollow portion extending in the longitudinal direction, and the hollow portion has the hollow portion. The reinforcing material is inserted.

Further, the building member having the above configuration may be, for example, a fire door, in which case the fire door includes a surface material and a back surface material, and has the hollow portion between the surface material and the back surface material. , The reinforcing material is inserted into the hollow portion. When the building member is a fire door, the surface material and the back surface material are formed with mounting holes for attaching a key cylinder and / or a handle, and the reinforcing material is arranged to face the surface material. The first flat plate portion and the second flat plate portion arranged to face the back surface material are provided, and through holes are formed in the first flat plate portion and the second flat plate portion at positions facing the mounting holes. The heat-expandable resin composition layer is preferably formed on the reinforcing material so as to sandwich the through hole.

Further, in any of the building members having the above structure, the heat-expandable resin composition layer is cured with a putty-like resin composition containing a thermosetting resin, a heat-expandable graphite, and an inorganic filler. It is preferable to form it. In this case, it is preferable that the thermosetting resin is an epoxy resin.

Further, in any of the building members having the above structure, the heat-expandable resin composition layer may be formed by molding a resin composition containing a thermoplastic resin, a heat-expandable graphite, and an inorganic filler. can.

According to the method of manufacturing building elements of the present invention, upon capable of expressing a reliable fire performance, it is possible to produce a building element which can be reduced in cost.

It is a front view of the building member (fire protection sash) which concerns on one Embodiment of this invention. It is sectional drawing of the main part along the line AA of FIG. It is sectional drawing of the main part of the fire protection sash of a modification. It is a front view of the building member (fire door) which concerns on other embodiment of this invention. It is sectional drawing which follows the BB line of FIG. It is a front view of the surface material. It is a front view of the reinforcing material in which the heat-expandable resin composition layer was formed. It is an exploded perspective view of the main part of a fire door (insulation material, key cylinder and handle are not shown).

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The building member of the present invention is used, for example, in an opening of a structure such as a detached house, an apartment house, a high-rise house, a high-rise building, a commercial facility, a public facility, or a ship such as a passenger ship, a transport ship, or a liaison ship. It is to be installed. Examples of building members include sashes and doors. The sash includes not only an opening frame such as a window frame or a door frame fixed to an opening of a structure, but also an outer peripheral frame for reinforcing the outer peripheral edge of fittings such as a window or a door. If the sash is an outer frame, the fitting itself such as windows and doors is a plate material, and if the fireproof sash is an opening frame, the outer frame is fixed to the fittings such as windows and doors ( The fittings including the frame) will be the plate material.

FIG. 1 shows a front view of a sliding window as an embodiment of the present invention, and FIG. 2 shows a cross-sectional view of a main part along the line AA of FIG. In this example, the building member is a fireproof sash, and as the fireproof sash, in addition to the opening frame 1 fixed to the rectangular opening of the building, the outer periphery that reinforces the outer peripheral edge of the fitting 3 such as a window or a door. Frame 2 is shown. In the present embodiment, the two fittings 3 are slidably attached to the opening frame body 1, and the vertical frame members 22 and 21 on the center side of the outer peripheral frame body 2 are overlapped in the front-rear direction to form a mating portion.

The opening frame body 1 has a rectangular shape in a plan view, and is composed of left and right vertical frame members 10 and 11 and upper and lower horizontal frame members 12 and 13, and the inside surrounded by each frame member 10 to 13 is an opening. It has become. The left and right vertical frame members 10 and 11 and the upper and lower horizontal frame members 12 and 13 form the four sides of the opening frame body 1. The material of the opening frame 1 is made of a chlorine-containing resin such as polyvinyl chloride, a polyolefin resin such as polyethylene / polypropylene, a polyester resin such as polyethylene terephthalate / polybutylene terephthalate, and aluminum, stainless steel, steel, and an alloy. Examples thereof include metal such as, and composite of aluminum and synthetic resin, and the material thereof is not limited.

Each of the frame members 10 to 13 constituting the opening frame body 1 has a U-shaped cross-sectional view in which a pair of side wall portions 16 protrude from both ends of the long main body portion 15 to which the fitting 3 abuts, and the width of the main body portion 15 is large. It is formed in a size that allows two fittings 3 to be arranged in parallel. Two hollow portions 14A extending in the longitudinal direction are provided in the main body portion 15 in a partitioned state. Further, a hollow portion 14B extending in the longitudinal direction is also provided in the side wall portion 16. Although the horizontal frame members 12 and 13 are not shown, they have the same shape as the vertical frame members 10 and 11. The configuration of the opening frame 1 is not particularly limited, and the upper, lower, left, and right frame members 10 to 13 constituting the opening frame 1 are hollow portions extending along the longitudinal direction, and are in the longitudinal direction. Any well-known form may be used as long as it has one or a plurality of hollow portions in a cross section orthogonal to the above.

The outer peripheral frame body 2 has a rectangular shape in a plan view, and is composed of left and right vertical frame members 20, 21 and upper and lower horizontal frame members 22, 23. The left and right vertical frame members 20, 21 and the upper and lower horizontal frame members 22, 23 form the four sides of the outer peripheral frame body 2. The material of the outer peripheral frame 2 is made of a chlorine-containing resin such as polyvinyl chloride, a polyolefin resin such as polyethylene / polypropylene, a polyester resin such as polyethylene terephthalate / polybutylene terephthalate, and aluminum, stainless steel, steel, and an alloy. Examples thereof include metal products such as, and composite products of aluminum and synthetic resin, and the materials thereof are not limited.

Each of the frame members 20 to 23 constituting the outer peripheral frame body 2 is also long and has a hollow portion 14C extending in the longitudinal direction. The hollow portion 14C may be divided into a plurality of hollow portions. The fitting 3 is located at a step portion of each of the frame materials 20 to 23, and is fixed by a rubber sealing material or a sealing material 24. Although the horizontal timbers 22 and 23 are not shown, they have the same shape as the vertical timbers 20 and 21. The configuration of the outer peripheral frame 2 is not particularly limited, and the upper, lower, left, and right stiles 20 to 23 constituting the outer peripheral frame 2 are hollow portions extending along the longitudinal direction, and are in the longitudinal direction. Any well-known form may be used as long as it has one or a plurality of hollow portions in a cross section orthogonal to the above.

The frame materials 10 to 13 of the opening frame body 1 and the frame materials 20 to 23 of the outer peripheral frame body 2 can be molded by, for example, extrusion molding or injection molding.

The fitting 3 closes the opening of the opening frame body 1, and the outer peripheral frame body 2 is fixed to the outer peripheral edge portion. The fitting 3 can be exemplified as a window or a door, but is formed of any material such as glass, plaster, ceramic, cement, calcium silicate, pearlite, aluminum, stainless steel, steel, alloy, and synthetic resin. good.

The hollow portions 14A and 14B of the frame members 10 to 13 constituting the opening frame body 1 and / or the hollow portions 14C of the frame members 20 to 23 constituting the outer peripheral frame body 2 are made of metal along the longitudinal direction. Reinforcing material 4 is inserted. The reinforcing material 4 is inserted into the hollow portions 14A, 14B, 14C with a large space.

The reinforcing material 4 is inserted into a part or all of the hollow portions 14A, 14B, 14C. The reinforcing material 4 may be simply inserted into the hollow portions 14, 14B, 14C as it is, which matches the shape and dimensions of the hollow portions 14, 14B, 14C, or the hollow portions 14, 14B, 14C may be used by using an adhesive tape or the like. It may be attached to the inner surface of (the wall surface of each member 10 to 13, 20 to 23 defining the hollow portions 14A, 14B, 14C). The shape of the reinforcing material 4 is not particularly limited as long as it can be inserted into the hollow portions 14A, 14B, and 14C. Various shapes such as a right-angled shape, a square pipe type in which four flat plates are connected in a tubular shape, a chevron shape, and a T shape can be mentioned. The material of the reinforcing material 4 is not particularly limited, and examples thereof include iron, stainless steel, aluminum, and aluminum alloys.

A heat-expandable resin composition layer 5 is directly formed on the surface of the reinforcing material 4. In addition, "directly"
Means that the heat-expandable resin composition layer 5 is laminated on the surface of the reinforcing material 4 without using an adhesive tape, an adhesive, an adhesive or the like.

The dimensions of the heat-expandable composition layer 5, that is, the length, width, and thickness are not particularly limited, and are appropriately set according to the dimensions of the reinforcing material 4. The heat-expandable resin composition layer 5 does not have to be formed on the entire surface of the reinforcing material 4, but may be formed only on a part thereof. That is, for example, as shown in FIG. 2, when the reinforcing material 4 is U-shaped, it may be formed on the surface of one, two, or all of the three flat plates. Further, for example, as shown in FIG. 3, when the reinforcing material 4 has a square pipe shape, it may be formed on the surface of one, a plurality of, or all of the four flat plates. The heat-expandable resin composition layer 5 is preferably formed on a surface of the reinforcing material 4 facing indoors or outdoors (a surface parallel to the fitting 3). Further, the heat-expandable resin composition layer 5 does not have to be formed on the entire surface of the flat plate in each flat plate constituting the reinforcing material 4, and includes a part (one place and a plurality of places) of the surface of the flat plate. ) May be formed only. Further, the heat-expandable resin composition layer 5 faces the inner surface of the hollow portions 14A, 14B, 14C of the reinforcing material 4 (the wall surfaces of the members 10 to 13, 20 to 23 defining the hollow portions 14A, 14B, 14C). It is preferably formed on the surface on the side of the surface.

The reinforcing material 4 on which the above-mentioned heat-expandable resin composition layer 5 is laminated forms the hollow portions 14A and 14B of the frame materials 10 to 13 constituting the opening frame body 1 and / or each frame constituting the outer peripheral frame body 2. When inserted into the hollow portion 14C of the materials 20 to 23, the fireproof sash is heated by a fire or the like, and even if a part of the fireproof sash is burnt down, the heat-expandable resin composition layer 5 thermally expands and the fireproof sash burns. Since the burned-out part is filled, it is possible to prevent the flame from invading. Further, the reinforcing material 4 can also prevent the invasion of flames, so that good fire protection performance can be exhibited. In addition, even if the thickness of the heat-expandable resin composition layer 5 is reduced, the fire protection performance can be ensured, so that cost reduction can be achieved and weight reduction can be achieved.

Next, the heat-expandable resin composition forming the above-mentioned heat-expandable resin composition layer 5 will be described. The heat-expandable resin composition is a resin component containing a heat-expandable layered inorganic substance and an inorganic filler.

Examples of the resin component include thermoplastic resins, thermosetting resins, rubber substances, and combinations thereof.

Examples of the thermoplastic resin include polypropylene-based resins, polyethylene-based resins, poly (1-) butene-based resins, polyolefin-based resins such as polypentene-based resins, polystyrene-based resins, acrylonitrile-butadiene-styrene (ABS) -based resins, and polycarbonates. Examples thereof include synthetic resins such as based resins, polyphenylene ether-based resins, acrylic resins, polyamide-based resins, polyvinyl chloride-based resins, phenol-based resins, polyurethane-based resins, and polyisobutylene.

Examples of the thermosetting resin include polyurethane, polyisocyanate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin, and polyimide.

The rubber substances include natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, and acrylic rubber. , Epichlorohydrin rubber, polysulfurized rubber, non-sulfurized rubber, silicon rubber, fluororubber, urethane rubber and other rubber substances.

As these synthetic resins and / or rubber substances, one kind or two or more kinds can be used. Among these synthetic resins and / or rubber substances, those having flexible and rubber-like properties are preferable. Those having such properties can be highly filled with an inorganic filler, and the obtained heat-expandable resin composition becomes flexible and easy to handle. In order to obtain a heat-expandable resin composition that is more flexible and easy to handle, a non-vulcanized rubber such as butyl or a polyethylene-based resin is preferably used. Further, an epoxy resin is preferable from the viewpoint of increasing the flame retardancy of the resin itself and improving the fire protection performance.

Next, the heat-expandable layered inorganic substance expands when heated, but the heat-expandable layered inorganic substance is not particularly limited, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite. Can be done. Thermally expandable graphite is a conventionally known substance, and powders such as natural scale-like graphite, thermally decomposed graphite, and kiss graphite are mixed with inorganic acids such as concentrated nitric acid, nitric acid, and selenic acid, and concentrated nitric acid, perchloric acid, and excess. It was treated with a strong oxidizing agent such as selenate, permanganate, bicarbonate, bicarbonate, hydrogen peroxide to form a graphite interlayer compound, and maintained the layered structure of carbon. It is a kind of raw crystalline compound.

As the heat-expandable graphite obtained by acid treatment as described above, it is preferable to use one neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound or the like.

The particle size of the heat-expandable graphite is preferably 20 mesh to 200 mesh. When the particle size is smaller than 200 mesh, the degree of expansion of graphite is small and a sufficient expansion heat insulating layer cannot be obtained, and when the particle size is larger than 20 mesh, the degree of expansion of graphite is large, but it is blended with the resin. In some cases, the dispersibility deteriorates and the physical properties deteriorate. Examples of commercially available products of the heat-expandable graphite include "GREP-EG" manufactured by Tosoh Corporation and "GRAFGUARD" manufactured by GRAFTECH.

Next, the inorganic filler increases the heat capacity and suppresses heat transfer when the expanded heat insulating layer is formed, and also works as an aggregate to improve the strength of the expanded heat insulating layer. The inorganic filler is not particularly limited, and for example, metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, and ferrites; calcium hydroxide. , Hydrousinorganic substances such as magnesium hydroxide, aluminum hydroxide and hydrotalcite; metallic carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate and barium carbonate can be mentioned.

In addition to the above, the inorganic fillers include calcium salts such as calcium sulfate, gypsum fiber, and calcium silicate; silica, diatomaceous earth, dosonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, activated clay, and sepiolite. , Imogolite, sericite, glass fiber, glass beads, silica-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate " MOS ”(trade name), lead zirconate titanate, zinc stearate, calcium stearate, aluminum borate, molybdenum sulfide, silicon carbide, stainless fiber, zinc borate, various magnetic powders, slag fibers, fly ash, dehydrated sludge, etc. Can be mentioned. These inorganic fillers may be used alone or in combination of two or more.

The particle size of the inorganic filler is preferably 0.5 μm to 100 μm, more preferably 1 μm to 50 μm, but is not particularly limited. When the amount of the inorganic filler added is small, the dispersibility greatly affects the performance, so that the inorganic filler having a small particle size is preferable, but 0.5 μm.
If it is less than, secondary agglutination occurs and the dispersibility deteriorates. When the particle size exceeds 100 μm, the surface properties of the molded product and the mechanical properties of the resin composition deteriorate.

Examples of the inorganic filler include "Heidilite H-31" (manufactured by Showa Denko Co., Ltd.) having a particle size of 18 μm, "B325" (manufactured by ALCOA) having a particle size of 25 μm for aluminum hydroxide, and calcium carbonate. Examples thereof include "Whiten SB Red" (manufactured by Bikita Powder Industry Co., Ltd.) having a particle size of 1.8 μm and "BF300" (manufactured by Bikita Powder Industry Co., Ltd.) having a particle size of 8 μm.

Further, the heat-expandable resin composition may further contain a phosphorus compound in addition to the above-mentioned components in order to increase the strength of the expansion heat insulating layer and improve the fire protection performance. The phosphorus compound is not particularly limited, and for example, red phosphorus; various phosphate esters such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, and xylenyl diphenyl phosphate; sodium phosphate, Metal phosphates such as potassium phosphate and magnesium phosphate; ammonium polyphosphates; compounds represented by the following chemical formula (1) can be mentioned. Of these, red phosphorus, ammonium polyphosphates, and compounds represented by the following chemical formula (1) are preferable from the viewpoint of fire protection performance, and ammonium polyphosphates are more preferable from the viewpoints of performance, safety, cost, and the like. ..

In the chemical formula (1), R1 and R3 represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R2 is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or a carbon number of carbon atoms. Represents 6 to 16 aryloxy groups.

As the red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of moisture resistance and safety such as not spontaneously igniting during kneading, those in which the surface of the red phosphorus particles is coated with a resin are preferably used. The ammonium polyphosphates are not particularly limited, and examples thereof include ammonium polyphosphate and melamine-modified ammonium polyphosphate, but ammonium polyphosphate is preferably used from the viewpoint of handleability and the like. Examples of commercially available products include "AP422" and "AP462" manufactured by Clariant, "FR CROS 484" and "FR CROS 487" manufactured by Budenheim Iberia.

The compound represented by the chemical formula (1) is not particularly limited, and is, for example, methylphosphonic acid, dimethylmethylphosphonate, diethylmethylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid, 2-methylpropylphosphonic acid, t-. Butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphonate, methylethylphosphonate, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphinic acid, phenylphosphonate Acids, diethylphenylphosphonates, diphenylphosphonates, bis (4-methoxyphenyl) phosphonates and the like can be mentioned. Among them, t-butylphosphonic acid is preferable in terms of high flame retardancy, although it is expensive. The above phosphorus compounds may be used alone or in combination of two or more.

Further, the heat-expandable resin composition includes antioxidants such as phenol-based, amine-based and sulfur-based antioxidants, metal damage inhibitors, antistatic agents, stabilizers, cross-linking agents and lubricants as long as the physical properties are not impaired. , Softeners, pigments and the like may be added. Further, a general flame retardant may be added, and the fire protection performance can be improved by the combustion suppressing effect of the flame retardant.

The heat-expandable resin composition contains 10 to 350 parts by weight of a heat-expandable layered inorganic substance and 5 to 400 parts by weight of an inorganic filler with respect to 100 parts by weight of a resin component such as a thermoplastic resin or an epoxy resin. preferable.

The total amount of the heat-expandable layered inorganic substance and the inorganic filler is preferably in the range of 25 parts by weight to 600 parts by weight with respect to 100 parts by weight of the resin component.

The heat-expandable resin composition expands by heating to form a fire-resistant expansion heat insulating layer. According to this formulation, the heat-expandable resin composition layer expands by heating such as a fire to obtain the required volume expansion coefficient, and after expansion, a residue having a predetermined heat insulating performance and a predetermined strength is obtained. It can also be formed and stable fire protection performance can be achieved.

When the total amount of the heat-expandable layered inorganic substance and the inorganic filler in the heat-expandable resin composition is 50 parts by weight or more, the residual amount after combustion is satisfied and sufficient fire resistance is obtained, and it is 600 parts by weight or less. Mechanical properties are maintained.

Further, the heat-expandable resin composition includes, if necessary, antioxidants such as phenol-based, amine-based and sulfur-based, as well as metal damage inhibitors, antistatic agents, stabilizers, cross-linking agents, lubricants and softeners. , Additives such as pigments, tackifier resins, molding aids, and tackifiers such as polybutene and petroleum resins.

Each component of the above-mentioned heat-expandable resin composition is kneaded using a known device such as a single-screw extruder, a twin-screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, a raikai machine, a planetary stirrer, and a disper. Thereby, a heat-expandable resin composition can be obtained.

The heat-expandable resin composition is not particularly limited as long as it is insulated by the expansion heat insulating layer when exposed to a high temperature such as in a fire and has the strength of the expansion heat insulating layer, but is preferably 50 kW. The volume expansion coefficient after heating for 30 minutes under the heating condition of / m ² is in the range of 3 to 50 times, more preferably the volume expansion coefficient is in the range of 5 to 40 times, and further preferably 8 It is in the range of double to 35 times.

For the heat-expandable resin composition layer 5, for example, a putty-like two-component thermosetting resin composition (putty material) is used, and this putty material is applied to a desired surface of the reinforcing material 4 and cured to be a reinforcing material. By integrating with 4, it can be formed directly on the surface of the reinforcing material 4.

As the putty material, a resin composition obtained by blending at least expandable graphite and an inorganic filler with a thermosetting resin can be used, and an epoxy resin can be preferably used as the thermosetting resin.

Examples of the epoxy resin include a resin obtained by reacting a monomer having an epoxy group with a curing agent. Examples of the monomer having an epoxy group include polyethylene glycol type, polypropylene glycol type, neopentyl glycol type, 1,6-hexanediol type, trimethylolpropane type, and propylene oxide-bisphenol A as bifunctional glycidyl ether type. Examples thereof include monomers such as epoxide bisphenol A type, bisphenol A type, and bisphenol F type.

Examples of the glycidyl ester type include monomers such as hexahydrophthalic anhydride type, tetrahydrophthalic anhydride type, dimer acid type, and p-oxybenzoic acid type.

Further, examples of the polyfunctional glycidyl ether type include monomers such as phenol novolac type, orthocresol type, DPP novolak type, dicyclopentadiene, and phenol type.

These can be used alone or in combination of two or more.

In addition, examples of the curing agent include a heavy addition type curing agent and a catalytic type curing agent. Examples of the heavy addition type curing agent include polyamines, acid anhydrides, polyphenols, and polymercaptans. Examples of the catalytic curing agent include tertiary amines, imidazoles, and Lewis acid complexes. The curing method of these epoxy resins is not particularly limited, and can be performed by a known method.

Further, in the heat-expandable resin composition layer 5, for example, a resin composition in which a thermoplastic resin is used as a binder and at least a heat-expandable graphite and an inorganic filler are mixed is melted to make it liquid, and then a predetermined gold is used. By injection molding using a mold, the reinforcing material 4 is supplied to a desired surface, and the reinforcing material 4 is solidified and integrated with the reinforcing material 4, so that the reinforcing material 4 can be directly formed on the desired surface.

In the above-mentioned fire protection sash (opening frame body 1 and outer peripheral frame body 2), the reinforcing material 4 having the heat-expandable resin composition layer 5 is inserted into the hollow portions 14A to 14C of the members constituting the fire protection sash. , Fire protection performance can be easily added to general fire protection sashes that are not fire protection specifications. Therefore, it can be used in a fireproof area or the like. Further, as compared with the case where only the heat-expandable refractory material is inserted in the hollow portion of the member constituting the fire protection sash, the weight and cost of the fire protection sash can be reduced. Further, the heat-expandable resin composition layer 5 is directly applied to the reinforcing material 5 by applying a putty-like two-component thermosetting resin composition or supplying the thermoplastic resin composition by injection molding. Since it is formed, the heat-expandable resin composition layer 5 is accurately formed on the reinforcing material 4 as compared with the case where the sheet-shaped heat-expandable fire-resistant material is attached to the reinforcing material 5 by using an adhesive tape or the like. Therefore, the fire protection sash can be provided with reliable fire protection performance, and the cost can be reduced.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, an example of a sliding window is shown as an example of a fireproof sash, but the present invention is not limited to this, and is not limited to this. It can be applied to appropriate things such as type opening / closing doors, dead-end doors, and sliding doors.

Further, the member constituting the fireproof sash may have a hollow portion in which only the reinforcing material 4 is inserted, or may have a hollow portion in which only the heat-expandable fireproof material is inserted. , There may be a hollow portion in which nothing is inserted.

Further, in the above embodiment, the fire protection sash has been described as an example of the building member, but another example of the building member may be a fire door. FIG. 4 shows a front view of a fire door as another embodiment of the present invention, and FIG. 5 shows a cross-sectional view taken along the line BB of FIG. Further, FIG. 6 shows a front view of the surface material, FIG. 7 shows a front view of the reinforcing material, and FIG. 8 shows an exploded view of a main part of the fire door 6.

The fire door 6 is fixed to an opening formed at the entrance / exit of a structure such as a house so as to be openable / closable by a hinge or the like, and is, for example, a rectangular steel or aluminum frame material (upper and lower end faces). A pair of steel or aluminum decorative materials (surface material 62 and back material 63) are bonded to the front and back surfaces of the material (not shown) and the left and right side surface materials 60, 61). Then, a metal reinforcing material 4 is inserted along the longitudinal direction into the hollow portion 65 formed between the pair of surface materials 62 and the back surface material 63. Further, a heat insulating material 64 is provided between the pair of surface materials 62 and the back surface material 63. The structure of the fire door 6 is not particularly limited as long as it has a hollow portion inside.

The front member 62 and the back member 63 are formed with mounting holes 65 and 66 for mounting the key cylinder 7 and the handle 8, respectively. In the illustrated example, two mounting holes 65 for the key cylinder 7 and two mounting holes 66 for the handle 8 are formed. The number of through holes 65 and 66 can be appropriately changed depending on the number of key cylinders 7 and the shape of the handle 8. The key cylinder 7 is exposed to the outside of the fire door 6 through the mounting hole 65. Further, in the handle 8, the connecting portion 80 is exposed to the outside of the fire door 6 through the mounting hole 66, and the handle portion 81 is connected to each connecting portion 80 on the outside of the fire door 6. The main body of the key cylinder 7 (not shown) and the main body of the handle 8 (not shown) are built in the hollow portion between the front surface material 62 and the back surface material 63.

The reinforcing material 4 is attached to the inner surface of the hollow portion 65 (the inner surface of the surface material 62 and the back surface material 63 defining the hollow portion 65) using an adhesive tape or an adhesive. The shape of the reinforcing material 4 may have a first flat plate portion 42 which is insertable into the hollow portion 65 and which is arranged to face the surface material 62 and a second flat plate portion 43 which is arranged to face the back surface material 63. For example, the present invention is not particularly limited, and may be a U-shaped type in which three flat plates are connected at a right angle, a square pipe type in which four flat plates are connected in a cylindrical shape, or the like. The material of the reinforcing material 4 is not particularly limited, and examples thereof include iron, stainless steel, aluminum, and aluminum alloys. The reinforcing material 4 does not need to be in contact with the surface material 62 and the back surface material 63, and a heat insulating material or the like may be sandwiched between them.

Through holes 40 and 41 are formed in the first flat plate portion 42 and the second flat plate portion 43 of the reinforcing material 4 so as to face the respective mounting holes 65 and 66 in the center in the width direction. The through hole 40 is formed to have a size that allows the key cylinder 7 to be inserted, and the through hole 41 is formed to have a size that allows the connecting portion 80 of the handle 8 to be inserted. The main body of the key cylinder 7 (not shown) and the main body of the handle 8 (not shown) are built in the key cylinder 7.

A heat-expandable resin composition layer 5 is directly formed on the outer side surface and the inner side surface of the first flat plate portion 42 and the second flat plate portion 43 of the reinforcing material 4. In addition, "directly" means that the heat-expandable resin composition layer 5 is laminated on the surface of the reinforcing material 4 without using an adhesive tape, an adhesive, an adhesive or the like.

As shown in FIGS. 5 and 8, for example, the heat-expandable resin composition layer 5 extends along the longitudinal direction to the left and right side edges in the width direction of the first flat plate portion 42 and the second flat plate portion 43. Can be provided. In this case, the through holes 40 and 41 are sandwiched between the pair of heat-expandable resin composition layers 5. The length (horizontal width) of the heat-expandable resin composition layer 5 in the width direction is not particularly limited.

The heat-expandable resin composition layer 5 provided on the left and right sides of the through holes 40 and 41 may extend the first flat plate portion 42 and the second flat plate portion 43 continuously in the longitudinal direction, or may be intermittent. That is, a plurality of the first flat plate portion 42 and the second flat plate portion 43 may be provided at intervals along the longitudinal direction. In this case, the heat-expandable resin composition layer 5 is provided only in the vicinity of the through holes 40, 41, that is, to the extent that the length (longitudinal width) of the through holes 40, 41 in the longitudinal direction can be sufficiently covered. It may have been.

Further, the heat-expandable resin composition layer 5 may be provided so as to sandwich the through holes 40 and 41 also in the longitudinal direction of the first flat plate portion 42 and the second flat plate portion 43. That is, the heat-expandable resin composition layer 5 can be provided so as to surround the through holes 40 and 41.

In the illustrated example, the heat-expandable resin composition layer 5 is provided on the inner and outer surfaces of the first flat plate portion 42 and the second flat plate portion 43, but the first flat plate portion 42 and the second flat plate portion 43 are provided. It may be provided on at least one of the inner surface and the outer surface of the.

As the heat-expandable resin composition layer 5, a putty-like two-component thermosetting resin composition (putty material) is used as in the above embodiment, and this putty material is applied to a desired surface of the reinforcing material 4. By curing and integrating with the reinforcing material 4, it can be formed directly on the surface of the reinforcing material 4.

Further, the heat-expandable resin composition layer 5 is formed by melting a resin composition in which a thermoplastic resin is used as a binder and at least a heat-expandable graphite and an inorganic filler are mixed to make it liquid, and then a predetermined mold is used. By the injection molding used, the reinforcing material 4 is supplied to a desired surface, and the reinforcing material 4 is solidified and integrated with the reinforcing material 4, so that the reinforcing material 4 can be directly formed on the desired surface.

In the fire door 6 described above, since the reinforcing material 4 having the heat-expandable resin composition layer 5 is inserted in the hollow portion 65, it is possible to easily impart fire protection performance to a general fire door having no fire protection specifications. .. That is, when the fire door 6 is heated by a fire or the like, the heat-expandable resin composition layer 5 thermally expands to fill the through holes 40, 41 and the mounting holes 65, 66, so that the hollow portion 65 is filled. It is possible to prevent the flame from invading. Further, since the hollow portion 65 is also filled with the heat-expandable resin composition layer 5 which has been thermally expanded, it is possible to prevent the flame from spreading, so that good fire protection performance can be exhibited. In addition, as in the above embodiment, the cost of the fire door 6 can be reduced and the weight can be reduced.

1 Opening frame (fireproof sash)
2 Outer frame (fireproof sash)
4 Reinforcing material 5 Thermally expandable resin composition layer 6 Fire door 7 Key cylinder 8 Handle 14A-14C Hollow part 40, 41 Through hole 42 First flat plate part 43 Second flat plate part 60, 61 Mounting hole 62 Surface material 63 Back material 65 Hollow part

Claims (4)

A method for manufacturing a building member installed in an opening of a structure and having a hollow portion extending in the longitudinal direction inside.
The building member is equipped with a metal reinforcing material and is provided with a metal reinforcing material.
A step of supplying the heat-expandable resin composition to at least a part of the metal reinforcing material, and
A step of curing or solidifying the heat-expandable resin composition to form a heat-expandable resin composition layer,
A step of inserting the metal reinforcing material on which the heat-expandable resin composition layer is formed into the hollow portion extending in the longitudinal direction, and
Equipped with
The heat-expandable resin composition contains a resin component, a heat-expandable graphite, and an inorganic filler.
Manufacturing method of building materials. The building member is a fire protection sash that supports the reinforcing material.
Each side of the fire protection sash has the hollow portion extending in the longitudinal direction.
The reinforcing material is installed in the hollow portion.
The method for manufacturing a building member according to claim 1. The building member is a fire door and
The fire door includes a surface material and a back surface material, has the hollow portion between the surface material and the back surface material, and installs the reinforcing material in the hollow portion.
The method for manufacturing a building member according to claim 1. The surface material and the back material are formed with mounting holes for mounting a key cylinder and / or a handle.
The reinforcing material has a first flat plate portion arranged to face the surface material and a second flat plate portion arranged to face the back surface material.
Through holes are formed in the first flat plate portion and the second flat plate portion at positions facing the mounting holes.
The heat expandable resin composition is formed on the reinforcing member so as to sandwich the through hole,
The method for manufacturing a building member according to claim 3.

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