Stainless steel zipper manufactured by metal injection molding and preparation method thereof

A technology of injection molding and manufacturing method, applied in application, apparel, sliding fastener components, etc., can solve the problems of insufficient product development and innovation ability, lack of international competitiveness, declining product profit margin, etc., to achieve fine surface, not easy to oxidize, The effect of improving product performance

Inactive Publication Date: 2009-11-18
刘世华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the zipper products of most domestic enterprises are concentrated in the low-end market, the homogeneity of products among enterprises is serious, the ability of product development and innovation is insufficient, the profit margin of products is declining year by year, and the lack of international competitiveness

Method used

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  • Stainless steel zipper manufactured by metal injection molding and preparation method thereof
  • Stainless steel zipper manufactured by metal injection molding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] ① Design the molds for the main parts of stainless steel zipper;

[0031] ② Choose metal powder for metal injection molding stainless steel zipper;

[0032] ③. Choose to equip with metal injection molding stainless steel zipper binder;

[0033] ④. Mix the metal powder and binder prepared in the process of ② and ③ into a uniform feed according to the specified volume and strength ratio;

[0034] ⑤. Inject the uniform feed prepared in the process of ④ into the mold after being heated and flowed at high temperature, and then cooled and formed;

[0035] ⑥. Use wax-based adhesive to cool and shape;

[0036] ⑦. Sintering the above-mentioned degreased stainless steel zipper to form a finished product.

[0037] The metal powder described in the method of the present invention is selected from 304L stainless steel powder, 317L stainless steel powder, 410L stainless steel powder, 430L stainless steel powder, 434L stainless steel powder, 440A stainless steel powder, 440C stainless ste...

Embodiment 2

[0043] Select 50% of the stainless steel metal powder in step ④, and 50% of the binder by volume and force to mix into a uniform feed; the temperature is controlled at 110 degrees, and the viscosity of the mixture is 50pa.s; step ⑥ the plastic-based binder is used for cooling For forming, the temperature is controlled at 110 degrees; step ⑦ the temperature is controlled at 110 degrees; the rest is the same as in Example 1. The performance of the finished stainless steel zipper is shown in the table below.

Embodiment 3

[0045] Select 65% of the stainless steel metal powder in step ④, and select 35% of the binder by volume to mix into a uniform feed; the temperature is controlled at 150 degrees, and the viscosity of the mixture is 220 pa.s; step ⑥ is a wax-based binder Cooling and forming, the temperature is controlled at 150 degrees; step ⑦ the temperature is controlled at 150 degrees; the rest is the same as in Example 1, the performance of the stainless steel zipper finished product obtained is shown in the table below.

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Abstract

The present invention provides a stainless steel zipper manufactured by metal injection molding. The stainless steel zipper comprises a zipper fastener 1, a pull ring 2, a pull piece 3 and pull teeth 4. The stainless steel zipper consists of stainless steel powder and at least one binder. The preparation method of the stainless steel zipper manufactured by metal injection molding comprises the following steps: 1, designing a mold; 2, selecting the metal powder; 3, selecting the binder; 4, preparing and compounding to uniform feeding material; 5, after injecting into a mold for heating at high temperature, cooling and forming; 6, cooling the binder for forming; and 7, sintering and forming the finished product. The stainless steel zipper manufactured by metal injection according to the invention has the advantages of suitability for manufacturing the zipper with random size, achieving the carving of complicated shape and three-dimensional forming characteristic, reducing the wastage, increasing the product performance, having fine surface, along with no easy generation of blistering, no oxidation, and no requirement of subsequent processing and auxiliary device.

Description

Technical field [0001] The invention relates to a manufacturing method of stainless steel zippers, and belongs to the technical field of using metal injection molding of stainless steel zippers and manufacturing methods thereof. technical background [0002] At present, the slider production usually adopts die-casting and pressing technology. The process is simple and backward, and there is pollution in the production process. Low technical content, high product rejection rate, many burrs, poor precision, easy to be imitated, fierce competition for homogeneity, low added value, labor-intensive; at the same time, it has great limitations in the use of metal materials and cannot be arbitrary. , Only used in iron, copper, aluminum, zinc, nickel and other alloys, not in stainless steel, tool steel, high specific gravity alloys, cemented carbide, titanium alloys, tungsten alloys, nickel-based super alloys, intermetallic compounds, oxidation There have been breakthroughs in precious ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44B19/26A44B19/42B22F3/22B29C45/00B29K103/06
Inventor 刘世华
Owner 刘世华
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