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Powder metallurgy method

A powder metallurgy, weight ratio technology, applied in the field of powder metallurgy, can solve problems such as low strength, and achieve the effects of long service life, simple preparation and high purity

Inactive Publication Date: 2018-03-09
宁波市海曙古林新睦粉末冶金厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a powder metallurgy method to overcome the defects of low strength in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Below in conjunction with the examples, the specific implementation of the present invention will be further described in detail. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0012] A powder metallurgy method of the present invention contains 2.3% of cobalt, 3.1-5.2% of polyethylene, 1.1-2.2% of zinc, 0.3% of anti-wear agent, 3% of tungsten, and the rest is copper and impurities that are difficult to remove; The ingredients are mixed during stirring at a high temperature of 170-190°C, and then die-cast and streamlined to obtain the finished product.

[0013] The zinc weight ratio is 2%. The polyethylene weight ratio is 5%.

[0014] The powder metallurgy method of the invention has simple preparation, high purity, is used for making high-strength structural parts, and has long service life.

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PUM

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Abstract

The invention provides a powder metallurgy method. Materials are adopted in percentage by weight: 2.3 percent of cobalt, 3.1 percent to 5.2 percent of polyethylene, 1.1 percent to 2.2 percent of zinc,0.3 percent of an anti-wear agent, 3 percent of tungsten and the balance of copper and difficult-to-remove impurities; the materials are mixed in a stirring process at high temperature of 170 DEG C to 190 DEG C and then are subjected to die casting and condensation to obtain a finished product. The powder metallurgy method has the advantages of simplicity in preparation and high purity and is used for preparing high-strength structural parts and the structural parts have long service life.

Description

technical field [0001] The invention relates to a powder metallurgy method. Background technique [0002] Powder metallurgy is a process technology for producing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to manufacture metal materials, composite materials and various types of products. The powder metallurgy method has similarities with the production of ceramics, and both belong to the powder sintering technology. Therefore, a series of new powder metallurgy technologies can also be used for the preparation of ceramic materials. Due to the advantages of powder metallurgy technology, it has become the key to solve the problems of new materials and plays a pivotal role in the development of new materials. Powder metallurgy includes powder making and products. Among them, milling is mainly a metallurgical process, which is consistent with the literal meaning. However, powder metallurgy produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/05B22F1/00
CPCC22C1/05C22C9/00B22F1/10
Inventor 李惠峰
Owner 宁波市海曙古林新睦粉末冶金厂