JPH04281730A - Part for fishing tackle - Google Patents

Abstract

PURPOSE:To obtain parts for fishing tackles, composed of a rigid phase component of a specific metallic carbide, nitride and carbonitride and a binding phase component composed of an iron family metal in a specified proportion, having a high strength, excellent in corrosion and abrasion resistance and capable of decreasing the wall thickness. CONSTITUTION:Members for fishing tackles are constructed of >=60vol.% rigid phase component composed of carbide, nitride and carbonitride of group IVa, Va and VIa metals of the periodic table and <=40vol.% binding phase component composed of an iron family metal. Thereby, the resultant members are rigid, have excellent strength of >=40kg/mm<2> expressed in terms of compressive strength and simultaneously exhibit excellent abrasion resistance and enabling reduction in wall thickness and weight. Durability is imparted without breaking fishing lines even by sliding and friction with the fishing lines.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to parts for fishing gear such as fishing line guides, which have high strength, excellent corrosion resistance, and wear resistance.
Concerning parts that can be made thinner.

0002

[Prior Art] Fishing gear parts, such as guide rings and rollers that come into contact with fishing lines, have traditionally been made of plastic and metals such as stainless steel, but plastic metals have low wear resistance. Therefore, ceramic materials such as alumina, zirconia, silicon nitride, and silicon carbide are being used as alternatives to these materials.

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

0004

[Problems to be solved by the invention] In the prior art,
Metal products have great impact resistance and do not break even if they hit rocks or concrete during use, but because of their low hardness, they are easily scratched by rocks, sand, etc. and are subject to severe wear. In addition, when it is exposed to seawater or sweat adheres to it, corrosion tends to progress and rust can occur. In addition, some products have been subjected to treatments such as plating for the purpose of finishing the surface, but the hardness of the coating is low and it wears off, and the coating peels off due to weak adhesion, and the roughness of the surface causes breakage of fishing lines, etc. The problem was that it was easier.

On the other hand, although the ceramic materials themselves have high hardness and excellent wear resistance, they are generally too weak to be used, or are thicker than conventional metal products in order to obtain strength. There was a problem in that the applications were limited because they were used with devised methods such as

[0006]

[Means for Solving the Problems] The present inventor solved the above problems and studied materials that have high strength, excellent wear resistance, and corrosion resistance, and can be made thin, and found that A material for fishing gear consisting of 60% or more by volume of a hard phase component consisting of a carbide, nitride, or carbonitride of a group 4a, 5a, or 6a metal, and 40% or less of a binder phase component consisting of an iron group metal. It has been found that by using it as a component, it can be made thinner without causing scratches, damage, or corrosion when used outdoors, and also without causing breakage of fishing line.

The present invention will be explained in detail below. Compositionally, the material constituting the fishing gear parts of the present invention belongs to group 4a of the periodic table,
Consisting of a hard phase component consisting of carbides, nitrides, and carbonitrides of group 5a and group 6a metals, and a binder phase component whose main component is iron group metal, the hard phase component accounts for 60% by volume.
In particular, the content of the binder phase component is 40% or less, particularly 30 to 5% by volume. The reason why the ratio is limited to the above range is that if the hard phase component is less than 60% and the binder phase component is more than 40%, the wear resistance and corrosion resistance will be poor.

[0008] Specific hard phase forming components include WC,
The main component is TiC, TiN, TiCN, TaC, ZrC, etc., and is also composed of carbides, nitrides, and carbonitrides of other metals of Group 4a, Group 5a, and Group 6a. on the other hand,
Examples of the bonding phase forming component include metals such as Ni, Co, Fe, and Cr.

[0009] As a method for producing such a sintered body, as a hard phase forming component, an average particle size of 50 μm or less, particularly 1
A carbide, nitride, or carbonitride raw material powder of a metal of Group 4a, Group 5a, or Group 6a of the periodic table with a size of 0 μm or less is used. Next, a mixture of these carbide, nitride, and carbonitride powders and iron group metal powder as a binder phase forming component is pulverized in an organic solvent such as acetone using a ball mill or a vibration mill. Add a predetermined amount of a binder such as paraffin. After molding these powders into the desired shape of a fishing gear part by a well-known molding method such as press molding, injection molding, extrusion molding, etc., the binder is removed, and then the powder is molded in vacuum or in various atmospheres with or without pressure. Perform firing. Note that 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, but is usually 0.5
~3 hours is appropriate.

[0010] The parts obtained by this method are made of a highly dense body with a porosity of 5% or less, and are structurally composed of hard phase particles and a binder phase.

[0011] In addition, when used as a part of fishing equipment such as a fishing line guide in a sliding part with a fishing line, the hard phase particles are present with an average particle size of 1 to 5 μm,
Further, from the viewpoint of sliding properties, it is desirable that the porosity is 5% or less.

0012

[Operation] Consists of a hard phase component consisting of carbides, nitrides, or carbonitrides of metals from Groups 4a, 5a, and 6a of the periodic table mentioned above, and a binder phase component whose main component is iron group metals. The fishing gear member of the present invention has a radial crushing strength of 40 kg, for example.
/mm2 or more, and is hard and exhibits excellent wear resistance. For example, it is used in parts that require strength and wear resistance, such as fishing line guides attached to fishing rods, compared to conventional metals and Compared to ceramics, it can be made thinner and lighter, and the fishing line will not break even when rubbed against the fishing line, making it more durable.

[0013]

[Example] Example 1 80% by weight of TiC powder, 5% by weight of Mo2 C powder, Ni
After mixing 15% by weight of the powder, pulverization was performed in an acetone solvent for 72 hours using a vibration mill. The obtained powder was thoroughly dried to remove the solvent in a dryer, and then paraffin was added and granulated. This powder was press-molded into a predetermined shape under a pressure of 1500 kg/cm2, and the binder was removed in a vacuum at 300°C. Thereafter, 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 was found to be 0%. In addition, the average particle size of the hard phase particles was 2 μm in terms of structure.

[0015] This sintered body was shaped like a fishing gear roller (outer diameter 8φ x
After grinding to inner diameter 5.6φ x 2mm), surface roughness is 0.1
Mirror finishing is performed to a degree of S or less, and as shown in Fig. 1, an additional force is applied to this roller A from the vertical direction.
The radial crushing strength at breakage was measured. As a result, 50k
It was able to withstand up to a load of 1.5 g.

A fishing line guide was also produced using this sintered body, and a heating test was conducted as shown in FIG. In the test, a fishing line 2 was passed through the prepared fishing line guide 1, a weight 3 was lowered vertically, and the fishing line was stretched horizontally from the guide 1 and connected to a cylinder 4. Then, while applying tension to the fishing line with a 3kg weight 3,
The fishing line guide and the fishing line were slid at a speed of 1 reciprocation/3 seconds with a stroke of mm, and the number of strokes until the fishing line broke was measured. As a result, it never broke until 60 times.

Further, as a comparison, a test using an alumina steatite roller of the same shape resulted in a radial crushing strength of 15 kg and a heating test of 50 times, which were inferior to the product of the present invention.

Furthermore, when alumina steatite was manufactured in an attempt to obtain the same strength as the product of the present invention, the wall thickness was approximately twice as large, making it impractical. Furthermore, when actually attached to fishing gear and compared with other materials, the product of the present invention showed good performance, with no breakage or excessive wear, and no corrosion or rust. On the other hand, the stainless steel one caused thread breakage, and the alumina steatite one did not wear out but was damaged and parts had to be replaced.

Example 2 TaC powder (purity 99% or more, average particle size 3 μm) 80
Volume %, Ni powder (purity 99% or more, average particle size 3 μm
After thoroughly mixing 20% by volume (below), pulverization was performed for 24 hours using WC-Co balls in an acetone solvent with a vibration mill. After the obtained powder was once dried, paraffin was added and granulated. 1,500 kg of this powder is shaped into the specified shape.
It was press-molded under a pressure of /cm2, and the binder was removed in a vacuum. Thereafter, it was fired at a temperature of 1400° C. for 1 hour.

When the properties of the obtained sintered body were evaluated in the same manner as in Example 1, the porosity was found to be 1.5%. Further, the average particle size of the hard phase particles was 5 μm. Further, the radial crushing strength was 60 kg. It also had excellent durability in a heating test of 55 times. In addition,
The surface after mirror finishing was also shiny 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, they were pulverized for 72 hours in a vibration mill using acetone as a solvent. The obtained powder was sized after sufficiently removing the solvent in a dryer. This powder was filled into a carbon mold having a predetermined shape, and heated at 1400° C. for 30 minutes at a pressure of 400 kg/cm 2 .

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

Example 4 TiC0.5 N0.5 powder 70% by volume, Ni powder 2
After mixing 0% by volume, 5% by volume of NbC, and 5% by volume of WC, pulverization was performed in a vibration mill for 72 hours using acetone as a solvent. The obtained powder was sized after sufficiently removing the solvent in a dryer. This powder is filled into a carbon mold of a predetermined shape,
Heating was carried out at 1400° C. for 30 minutes at a pressure of 400 kg/cm 2 . The obtained sintered body exhibited excellent properties, with a porosity of 0%, a radial crushing strength of 70 kg, and a heating test of 40 times.

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

Comparative Example 1 After thoroughly 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 a WC-Co ball in an acetone solvent in a vibration mill. Ta. After the obtained powder was once dried, paraffin was added and granulated. 1500kg/cm of this powder into the specified shape
It was press-molded under a pressure of 2.0°C and subjected to binder removal treatment in a vacuum at 300°C. Thereafter, it was fired at a temperature of 1300° C. for 1 hour. The porosity of the obtained sintered body was 1%, but the radial crushing strength was 80 kg, and the heating test was performed 25 times, which was poor.

[0026]

[Effects of the Invention] As detailed above, the fishing gear component of the present invention has high strength and excellent wear resistance and corrosion resistance, so it can be used as a fishing gear component in all environments and has excellent durability. , parts can be made smaller and lighter.

[Brief explanation of the drawing]

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)

[Claims] 1. A hard phase component consisting of 60% by volume or more of carbides, nitrides, and carbonitrides of metals of Groups 4a, 5a, and 6a of the Periodic Table, and 40% by volume of a binder phase component consisting of an iron group metal. % or less of fishing gear parts.