KR100399879B1 - M anufacturing method of fishing sinker and fishing net weight using sintered tungsten scrap - Google Patents

Abstract

The present invention relates to a method for manufacturing a fishing weight using tungsten sintered body scrap powder. The manufacturing method of the fishing weight in the manufacturing method of the fishing weight, in the manufacturing method of the fishing weight, by mixing 90-96wt% of tungsten sintered scrap powder of 50-100 micron size and 4-10wt% of resin products It is characterized by molding. As described above, the manufacturing method of the fishing weight and the fishing net weight using the present invention tungsten sintered scrap powder can reduce the raw material by using waste tungsten, the resin used as a binder can be recycled for use, the hook for fishing line Because it is molded integrally with the weight, it is easy for the user to use, and it is very excellent in terms of economic and functional aspects.In particular, tungsten is an environmentally friendly raw material that does not cause environmental pollution such as water pollution. Maximize.

Description

Manufacturing method of fishing weight and fishing net weight using tungsten sintered body scrap powder {M anufacturing method of fishing sinker and fishing net weight using sintered tungsten scrap}

The present invention relates to a method for manufacturing fishing weights and fishing net weights using tungsten sintered body scrap powder, and more specifically, tungsten sintered body scrap produced by mixing tungsten sintered body scrap powder or cobalt extracted tungsten sintered body scrap and various resins. The present invention relates to a method for manufacturing fishing weights and fishing net weights using powders.

Generally, the weight for fishing and the weight for fishing nets use lead as a raw material. However, the pollution of the ecosystem caused by the use of lead and its fatal harms to humans and nature is a problem every year.

Accordingly, various raw materials and manufacturing methods thereof have been proposed to replace the weight using lead. Looking for a fishing weight that has been proposed to replace the weight using the lead as follows.

First, International Publication No. WO9918778A1 (prior application date: October 15, 1997, priority application number 20-1997-0029651) proposes a pollution-free fishing weight. The pollution-free fishing weight is pressed by pressing a ceramic material into a predetermined shape. After molding, it is introduced into a furnace and heated to an appropriate temperature of about 1300 ° C. or more. At this time, the fishing weight is a metal component among the components constituting the ceramic is melt-oxidized by high heat, and as a result is composed only of pure ceramic, that is, pure soil. Since the fishing weight is cooled slowly at room temperature to complete the weight.

Second, Japanese Laid-Open Publication No. JP10042763A2 (Application No. 8-218014, filed July 31, 1996) proposes a fishing weight manufactured using a ceramic material having a high specific gravity. The weight is characterized by being a molded article of ceramic material.

Third, Japanese Laid-Open Patent Publication No. JP201606A2 (Application No. 11-45237, filed January 18, 1999) provides a roughing center using biodegradable plastic resin. The head for the tank using the biodegradable plastic resin is characterized in that the high specific gravity tungsten metal and biodegradable plastic resin is mixed to create a center and the fishing line is connected to the center. The biodegradable plastic resin is composed of a polymer made by a microorganism, a natural polymer such as grain starch, or a polymer composed of chemical synthesis.

Fourth, Japanese Laid-Open Publication No. JP10286052A2 (Application No. 9-99377, filed April 16, 1997) provides a scale for fishing tackle. The fishing tackle for weight is manufactured by an alloy having a specific gravity of 17 or more by mixing nickel or iron and copper in tungsten, wherein the alloy is 93% or more by weight of tungsten and 4.9% or less by weight of nickel, and 2.1% or less by weight. It is characterized in that the alloy consisting of iron, the alloy is composed of 95% or more of tungsten, 3% or less of nickel, and 2% or less of iron, and using chromium or other nonferrous metals in place of the iron or copper. It features.

Fifth, the fishing rod provided in European Patent Application No. 83305632.8 (filed September 22, 1983) is composed of a material consisting of a high density metal powder in a polymer matrix. The weight consists of body parts, which are connected by hinge means closed or open to each other to clamp a fishing line between them. The hinge means is an essential component of the material, such as the body portion or a separate soft element fitted to the body portion. The weight can be produced economically because of the injection molding method, and can be reused because it is non-toxic. Sixth, Japanese Unexamined Patent Publication No. 12-157129 (2000.06.13) is mainly made of tungsten or tungsten alloy and thermosetting resin. And a weight for fishing tackle, which is characterized in that the specific gravity is formed in the range of 11-17. However, methods for manufacturing the weight which have been proposed to replace the weight made of lead are made of tungsten powder and other high ratios. The use of environmentally friendly raw materials, such as heavy metals and ceramics, prevents environmental pollution and can be recycled. However, most of the above raw materials are inexpensive because they use expensive raw materials. This complexity has an inefficient problem such as a higher unit cost of the product.

The present invention has been made to solve the above problems, low price, high density, easy manufacturing method, easy weight adjustment of fishing weight, simple fixing method of fishing line and the like lead which is currently used lead It is an object of the present invention to provide fishing weights and fishing net weights using environmentally friendly tungsten sintered scrap scrap powders using tungsten sintered compact scrap powder and cobalt extracted tungsten sintered scrap as main raw materials to compensate for the polluting disadvantages.

1 is a process chart showing a manufacturing method of a fishing weight and a fishing net weight using a tungsten sintered body scrap powder of the present invention,

2 is a front view of a fishing weight relating to a method for manufacturing a fishing weight and a fishing net weight using a tungsten sintered body scrap powder of the present invention,

3 is a side view of a fishing weight relating to a method for manufacturing a fishing weight and a fishing net weight using a tungsten sintered body scrap powder of the present invention.

<Explanation of symbols for the main parts of the drawings>

101: weight 102: hook for fishing line

The above object is, according to the present invention, in the manufacturing method of fishing weights, tungsten sintered body characterized in that the mixture is molded by mixing 90-96wt% of tungsten sintered compact scrap powder of 50-100 micron size and 4-10wt% of resin products. It is achieved by a method for manufacturing fishing weights and fishing net weights using scrap powder.

Here, it is preferable that the tungsten sintered compact is crushed to a size of 100-1,000 microns belonging to the secondary particle group and used for the production of a weight of 50 grams or more.

In addition, when mixing the sintered scrap and the resin product, it is preferable to further mix pigments of various colors.

In addition, it is preferable to mold the hook for fishing line integrally with the weight during the mixing molding of the sintered body scrap powder and the resin product.

Then, the sintered compact scrap powder is preferably used by replacing cobalt with the remaining tungsten sintered compact scrap residue powder.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the manufacturing method of the fishing weight and fishing net weight using the tungsten sintered body scrap powder of the present invention as follows.

The manufacturing method of the fishing weight and the fishing net weight using the tungsten sintered compact scrap powder of the present invention is formed by mixing the remaining tungsten sintered scrap scrap powder or cobalt 90-96wt% and 4-10wt% of the resin product after extraction . When forming the fishing line loop 102 is integrally molded with the weight (101).

The mixing ratio of the raw materials is shown in Table 1 below.

Table 1 Mixing ratio of tungsten sintered scrap powder and resin

Specific Gravity ＼ Raw Materials Tungsten Sintered Scrap Powder (wt%) Resin (wt%) 11.34 90 10 12 92 8 13 93 7 14 94 6 15 95 5 16 96 4

The sintered tungsten is used in daily necessities and industrial goods because of its high hardness and excellent wear resistance.In the method of manufacturing the sintered tungsten product, a pellet is manufactured by press molding using a powder and wax, and injection and extrusion molding are performed. . In such basic tungsten sintered body products, tungsten sintered scrap is generated due to defects in various molding processes and failure factors between the sintering processes, and in the present invention, such waste tungsten is used as a raw material. In addition, tungsten carbide is used as a method for producing tungsten sintered compacts. Cobalt is mainly used to produce high quality tungsten sintered body by using various kinds of sintering aids in the powder. Currently, cobalt is an expensive sintering aid, and the remaining tungsten sintered scrap can be used after the cobalt is extracted from the tungsten sintered compact.

The size of the tungsten sintered scrap powder is classified into a primary particle group of 50-100 microns and a secondary particle group of 100-1,000 microns. As an example of the use of the primary particle group suitable for the weight product of less than 50 grams, the dispersion of the lead weight of fishing weight less than 50 grams, which is used, is measured and compared with the following table <Table 2>.

<Table 2> Mountain distribution map of fishing weights

No. 1 No. 4 No. 10 No. 30 Weight (g) Weight (g) Weight (g) Weight (g) One 1.17 3.37 11.14 32.11 2 1.22 3.45 11.09 30.49 3 1.18 3.48 11.18 33.57 4 1.19 3.30 11.20 32.88 5 1.23 3.40 11.47 29.32 6 1.21 3.43 11.32 31.10 7 1.16 3.54 11.58 31.68 8 1.17 3.31 11.77 28.54 9 1.0 3.44 11.34 30.69 10 1.22 3.29 11.62 35.06 11 1.19 3.42 11.81 32.27 12 1.15 3.47 11.05 33.09 13 1.20 3.49 11.27 34.77 14 1.16 3.46 11.49 32.74 15 1.22 3.41 11.57 29.64 16 1.19 3.36 11.90 33.90 17 1.18 3.39 11.77 32.61 18 1.20 3.51 11.62 29.47 19 1.25 3.46 11.86 34.85 20 1.19 3.34 11.45 33.53 21 1.18 3.44 11.34 31.28 22 1.20 3.47 10.98 32.01 23 1.21 3.37 11.59 33.34 24 1.23 3.42 11.68 34.69 25 1.18 3.44 11.71 27.89 26 1.26 3.40 11.58 33.46 27 1.17 3.45 11.43 31.72 28 1.14 3.35 11.12 30.31 29 1.24 3.32 11.49 28.17 30 1.18 3.41 11.55 32.84

Considering the distribution of the product measured in Table 2, it can be seen that the problem of use does not occur even if the weight precision of the finished fishing weight is at least ± 5-10%. Therefore, the powder of the said primary particle group tungsten sintered compact scrap is completed by sieving with a 160 mesh sieve.

In addition, in the case of fishing nets and deep sea fishing weights, a large addition of 50 grams or more is used.In the manufacture of such heavy weights, a tungsten sintered body scrap of 100 microns or more belonging to the secondary particle group remaining after sieving with the above-mentioned 160 mesh sieves Use powder.

When mixing the above raw materials, in the use of various resin products used as bonding aids, recycled urethane and recycled rubber can be used as binders for most finished products. However, due to the characteristics of the finished product, recycled binders may be used to colorize the finished product for effective fishing and fishing (inducement of fish and relaxation of fish boundary). In the mixing step of the raw materials, the mixing ratio of the tungsten sintered compact scrap powder, urethane and rubber binder is adjusted and mixed at the ratio of <Table 1> according to the specific gravity required for the finished product. As a mixing method of such raw materials, a barrel or a mixer is mixed and a pigment for resin is added in a mixing process when color is required for the finished product.

The binder is to use a variety of existing resin, in consideration of the environmental aspect is to use a biodegradable hardened starch and the like. In addition, it is to provide a soft urethane and rubber provider that is easy to cut in the finished weight product so that the weight can be adjusted.

In the molding of the mixed raw materials, a conventional production method such as injection, extrusion, and injection molding may be applied. However, due to the high hardness of the tungsten sintered body scrap powder, it is necessary to use a tungsten sintered body part or mechanical supplementation such as hard chromium plating in a part where mechanical wear is expected in the product manufacturing process. For homogeneous distribution of the tungsten sintered scrap powder required in the finished product, the raw material filling process is performed by using a screw or the like to which the principle of stirring is applied. In a method using rubber or the like, the tungsten sintered scrap powder is mixed according to the density required in the product while melting and stirring the rubber. While stirring this mixture, a board | plate material is manufactured by methods, such as a doctor blade. The manufactured plate can be heated and press-molded by a press equipped with a heating mold, thereby completing a large amount of fishing weights for various uses.

The fishing weight and fishing net weight manufactured by the above manufacturing method can reduce product manufacturing cost by using cobalt extracted from tungsten sintered body scrap and tungsten sintered body scrap, and resin used as a binder (thermosetting, thermoplastic, biodegradable) The product also uses recycled resin as a binder for most fishing and fishing net weights to reduce costs, maximizing user and producer efficiency.

The manufacturing method of fishing weight and fishing net weight using tungsten sintered body scrap powder of the present invention can reduce raw materials by using waste tungsten, and the resin used as a binder can be recycled for use, and the hook for fishing line can be added. Because it is molded in one piece, it is easy to use by the user and is very excellent in terms of economic and functional aspects.In particular, tungsten is an environmentally friendly raw material that does not cause environmental pollution such as water pollution. It's a great invention.

Claims (6)

In the manufacturing method of the fishing weight, A method for manufacturing a fishing weight and a fishing net weight using tungsten sintered scrap powder comprising a mixture of 90-96wt% of a tungsten sintered scrap powder having a size of 50-100 microns and 4-10wt% of a resin product. The method of claim 1, The method of manufacturing a fishing weight and fishing net weight using a tungsten sintered scrap powder, characterized in that the tungsten sintered scrap is pulverized to a size of 100-1,000 microns belonging to the secondary particle group and used for the production of a weight of 50 grams or more. The method of claim 1, A method for manufacturing fishing weights and fishing net weights using tungsten sintered body scrap powder, characterized in that the pigments of various colors are further mixed when the sintered body scrap powder is mixed with a resin product. The method of claim 1, A method for manufacturing a fishing weight and a fishing net weight using a tungsten sintered body scrap powder, characterized in that the fishing line ring is integrally formed with the weight during the mixing molding of the sintered body scrap powder and the resin product. The method of claim 1, The method for manufacturing a fishing weight and a fishing net weight using tungsten sintered compact scrap powder, wherein the sintered compact scrap powder is used by replacing cobalt with the remaining tungsten sintered compact scrap residue powder. delete