JP2718839B2 - Fishing tackle parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing tackle component such as a fishing line guide, which has high strength and excellent corrosion resistance and abrasion resistance.
The present invention relates to a part that can be thinned.

[0002]

2. Description of the Related Art Conventionally, parts made of metal such as plastic and stainless steel have been generally used as parts for fishing gear, for example, guide rings and rollers which come into contact with fishing line. However, plastic metals have low wear resistance. Accordingly, ceramic materials such as alumina, zirconia, silicon nitride, and silicon carbide are being used as alternative materials.

[0003] These fishing tackle parts, for example, as fishing line guide parts, are required to have excellent properties such as strength, abrasion resistance, corrosion resistance and slidability.

[0004]

SUMMARY OF THE INVENTION In the prior art,
The metal material product does not break even when hit against rock or concrete during use, and has high impact resistance. However, since its hardness is low, it is easily scratched by rocks and sand and easily worn. Further, when exposed to seawater or when sweat adheres, corrosion is apt to proceed, and rust or the like is generated. Some are coated with plating or the like for the purpose of processing the surface.However, the hardness of the coating is low, and the coating is peeled off due to low adhesion. There was a problem that it became easier.

On the other hand, the ceramic material itself has high hardness and excellent abrasion resistance, but generally has low strength and is unusable, or has a greater thickness than conventional metal products in order to obtain strength. There is a problem that the usage is restricted because the device is used after devising it.

[0006]

Means for Solving the Problems The inventor of the present invention has solved the above problems and studied materials which are excellent in high strength, abrasion resistance and corrosion resistance and which can be reduced in thickness. For fishing gear, a material comprising a hard phase component consisting of a carbide, nitride or carbonitride of a Group 4a, 5a or 6a metal in a volume ratio of 60% or more and a binder phase component consisting of an iron group metal of 40% or less is used. By using it as a part,
It has been found that there is no occurrence of scratches, breakage, or corrosion in outdoor use, and furthermore, there is no occurrence of fishing line breakage and the like, and it is possible to reduce the thickness.

Hereinafter, the present invention will be described in detail. The material constituting the fishing tackle part of the present invention is, in terms of composition, Group 4a of the periodic table,
A hard phase component composed of carbides, nitrides, and carbonitrides of Group 5a and 6a metals, and a binder phase component mainly composed of an iron group metal, wherein the hard phase component is 60% by volume.
As described above, 70 to 95% by volume, and the binder phase component is 40% or less, particularly 30 to 5% by volume. The ratio is limited to the above range because if the hard phase component is less than 60% and the binder phase component is more than 40%, abrasion resistance and corrosion resistance are inferior.

Specific hard phase forming components include WC,
It is mainly composed of TiC, TiN, TiCN, TaC, ZrC, and the like, and is also made of a carbide, nitride, or carbonitride of another Group 4a, 5a, or 6a metal. on the other hand,
Examples of the binding phase forming component include metals such as Ni, Co, Fe, and Cr.

As a method for producing such a sintered body, an average particle size of 50 μm or less, particularly 1
Group 4a of the Periodic Table of 0 μm or less: Group 5a, group 6a metal carbide, nitride, carbonitride raw material powder is used. Next, after mixing these carbides, nitrides, carbonitride powders, and iron group metal powders as a binder phase forming component using a ball mill or a vibration mill with an organic solvent such as acetone, A predetermined amount of a binder such as paraffin is added. These powders are molded into a desired fishing tackle component shape by a known molding method, for example, press molding, injection molding, extrusion molding, etc., then debindered, and then in a vacuum or various atmospheres, with or without pressure. Perform baking. The firing temperature at this time is suitably in the range of 1200 to 1800 ° C., and the firing time depends on the size of the sample.
~ 3 hours is appropriate.

[0010] The component obtained by such a method is made of a highly dense body having a porosity of 5% or less, and is structurally composed of hard phase particles and a binder phase.

When used as a fishing tackle part in a sliding portion with a fishing line, such as a fishing line guide, the hard phase particles have an average particle size of 1 to 5 μm and a porosity. Is preferably 5% or less from the viewpoint of sliding characteristics.

[0012]

The hard phase component is made of a carbide, nitride or carbonitride of a metal of Groups 4a, 5a and 6a of the periodic table and a binder phase component mainly composed of an iron group metal. The fishing tackle member of the present invention has a radial crushing strength of, for example, 40 kg.
/ Mm ² or more and is hard and shows excellent wear resistance. For example, in a member requiring strength and wear resistance, such as a fishing line guide attached to a fishing rod, a conventional metal And ceramics,
The thickness and the weight can be reduced, and the durability can be imparted without breaking the fishing line even by rubbing with the fishing line.

[0013]

Example 1 After mixing 80% by weight of TiC powder, 5% by weight of Mo ₂ C powder and 15% by weight of Ni powder, the mixture was ground for 72 hours in an acetone solvent using a vibration mill. After the obtained powder was sufficiently dried with a drier, paraffin was added and granulated. This powder was press-molded into a predetermined shape under a pressure of 1500 kg / cm ² and subjected to a binder removal treatment at 300 ° C. in a vacuum. Then, it was baked at a temperature of 1450 ° C. for 1 hour.

The porosity of the obtained sintered body was measured by the Archimedes method and found to be 0%. The average particle size of the hard phase particles was 2 μm.

The sintered body is formed into a fishing gear roller shape (outer diameter 8φ ×
After grinding to inner diameter 5.6φ × 2mm), surface roughness 0.1
S is mirror-finished to about S or less, and as shown in FIG.
The radial crushing strength at the time of breakage was measured. As a result, 50k
g load.

A fishing line guide was manufactured using the sintered body, and a heating test was performed as shown in FIG. In the test, the fishing line 2 was passed through the produced fishing line guide 1, the weight 3 was lowered by the vertical method, and the fishing line was extended horizontally from the guide 1 and connected to the cylinder 4. And 3kg
While applying tension to the fishing line with a weight 3 of 30
The fishing line guide and the fishing line were slid at a speed of 1 reciprocation / 3 seconds with a stroke of 0 mm, and the number of strokes until the fishing line was cut was measured. As a result, it did not expire up to 60 times.

As a comparison, when a test was conducted using an alumina steatite roller having the same shape, the radial crushing strength was 15 kg and the heating test was 50 times, which was inferior to the product of the present invention.

Further, when alumina steatite was produced in order to obtain the same strength as that of the product of the present invention, the thickness was approximately doubled, and the practicality was low. In addition, when actually attached to a fishing tackle and compared with other materials, the product of the present invention did not suffer breakage and extreme wear, and had good performance without corrosion and rust generation. On the other hand, thread breakage occurred in stainless steel, and although there was no wear in alumina steatite, damage occurred and replacement of parts was required.

Example 2 80% by volume of TaC powder (purity 99% or more, average particle size 3 μm) and 20% by volume of Ni powder (purity 99% or more, average particle size 3 μm or less) were sufficiently mixed, and then mixed with a vibration mill. The mixture was ground for 24 hours using a WC-Co ball in an acetone solvent. After the obtained powder was once dried, paraffin was added and granulated. 1500 kg /
Press molding was performed under a pressure of cm ^{2, and} the binder was removed in a vacuum. Then, it was baked at a temperature of 1400 ° C. for 1 hour.

When the characteristics of the obtained sintered body were evaluated in the same manner as in Example 1, the porosity was 1.5%. The average particle size of the hard phase particles was 5 μm. The radial crushing strength was 60 kg. In the heating test, it had excellent durability 55 times. In addition,
The mirror-finished surface was also glossy and good, and good results were obtained.

Example 3 After mixing 80% by volume of ZrC powder, 10% by volume of Ni powder and 10% by volume of Co powder, the mixture was ground in a vibration mill for 72 hours using acetone as a solvent. The obtained powder was sized after sufficiently removing the solvent with a dryer. This powder is filled into a carbon mold having a predetermined shape, and the pressure is set to 1 at a pressure of 400 kg / cm ^2.
Heating was performed at 400 ° C. for 30 minutes.

The porosity of the obtained sintered body was 2.5%, the radial crushing strength was 40 kg, and the heating test was 45 times. Further, after grinding this sintered body into a fishing gear roller shape, it was mounted on an actual fishing gear and subjected to the same test as in Example 1. As a result, good results with excellent durability were obtained.

Example 4 After mixing 70% by volume of TiC _0.5 N _0.5 powder, 20% by volume of Ni powder, 5% by volume of NbC, and 5% by volume of WC, pulverization was carried out in a vibration mill for 72 hours using acetone as a solvent. The obtained powder was sized after sufficiently removing the solvent with a dryer. This powder is filled into a carbon mold having a predetermined shape,
Heating was performed at 1400 ° C. for 30 minutes at a pressure of 0 kg / cm ² . The porosity of the obtained sintered body is 0%, and the radial crushing strength is 70 k.
g, 40 times of heating test, showing excellent properties.

Example 5 After 90% by volume of WC, 5% by volume of Co powder, 2.5% by volume of TiC and 2.5% by volume of TaC were mixed, the mixture was ground in a vibration mill for 72 hours using acetone as a solvent. The obtained powder was sized after sufficiently removing the solvent with a dryer. This powder is filled in a carbon mold having a predetermined shape, and is filled with 400 kg / cm.
Heating was performed at a pressure of ² at 1400 ° C. for 30 minutes. The obtained sintered body showed excellent characteristics such as a porosity of 0%, a radial crushing strength of 75 kg, and a heating test of 45 times.

Comparative Example 1 After sufficiently mixing 50% by volume of TiN powder, 40% by volume of Ni powder and 10% by volume of Co powder, pulverization was carried out for 72 hours using WC-Co balls in an acetone solvent in a vibration mill. Was. After the obtained powder was once dried, paraffin was added and granulated. 1500 kg / c
It was press-molded under a pressure of m ² and debindered in a vacuum at 300 ° C. Then, it was baked at a temperature of 1300 ° C. for 1 hour. Although the porosity of the obtained sintered body was 1%, it was inferior to a radial crushing strength of 80 kg and a heating test of 25 times.

[0026]

As described above in detail, the fishing tackle member of the present invention has high strength and excellent abrasion resistance and corrosion resistance, etc., and therefore has excellent durability in any environment as a fishing tackle member. In addition, the size and weight of parts can be reduced.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining a radial crushing strength test method.

FIG. 2 is a diagram for explaining a heating test method.

[Explanation of symbols]

 A fishing gear roller 1 fishing line guide 2 fishing line 3 weight 4 cylinder

Claims (1)

(57) [Claims] 1. Group 4a, 5a and 6 of the periodic table
A fishing tackle component comprising 60% by volume or more of a hard phase component comprising a carbide, nitride and carbonitride of a group a metal and 40% by volume or less of a binder phase component comprising an iron group metal.