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Low-oxygen nickel-containing copper alloy powder prepared with water-mist method

A technology of oxygen content and copper alloy, which is applied in the field of powder metallurgy, can solve problems such as increasing costs, and achieve good strength, cost reduction, and low oxygen content

Inactive Publication Date: 2016-10-26
安徽旭晶粉体新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But bismuth is a rare metal, which undoubtedly increases a lot of cost

Method used

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Embodiment Construction

[0016] A kind of water mist method to prepare nickel-containing copper alloy powder with low oxygen content is characterized in that it is prepared from the following components: 500 parts of raw copper powder, 25 parts of tin powder, 8 parts of nickel powder,

[0017] A kind of water mist method prepares nickel-containing copper alloy powder with low oxygen content, is characterized in that, it is prepared by following steps:

[0018] (1) Preparation of raw copper powder, tin powder and nickel powder

[0019] The copper powder, tin powder and nickel powder are heat treated separately, the heat treatment temperature is 600°C, and the heat treatment atmosphere is a reducing atmosphere; after the heat treatment, the copper powder, tin powder and nickel powder are respectively crushed and screened to obtain raw copper with a particle size of less than 150 μm powder, raw tin powder and raw nickel powder;

[0020] (2) Use intermediate frequency melting equipment for melting

[00...

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Abstract

The invention relates to low-oxygen nickel-containing copper alloy powder prepared with a water-mist method. The low-oxygen nickel-containing copper alloy powder is characterized in that the low-oxygen nickel-containing copper alloy powder is prepared from the following components: 500 parts of copper powder, 25 to 30 parts of tin powder and 8 to 10 parts of nickel powder. According to the low-oxygen nickel-containing copper alloy powder, the copper powder is heat-treated first, and the contents of copper, tin and nickel are adjusted, so that a lead-free product is realized, and the low-oxygen nickel-containing copper alloy powder is prepared. The antioxidant nickel-containing copper alloy powder has the advantages of uniform and round particles, low oxygen content and good intensity, thermal conductivity, wear resistance and color.

Description

technical field [0001] The invention relates to the field of powder metallurgy, and relates to a method for preparing oxidation-resistant copper powder and copper alloy powder by water atomization. Background technique [0002] Traditional copper alloy powder is composed of copper, lead, tin, zinc (or phosphorus). Because it contains lead, it is poisonous to the human body and pollutes the environment. Lead and its compounds are toxic to various tissues of the human body. The poisoning route can be Its vapor or dust is inhaled by the respiratory tract, and then the phagocytes in the respiratory tract quickly bring it to the blood; or it is absorbed through the digestive tract and enters the blood circulation to cause poisoning. With the increasing awareness of environmental protection and their own health requirements and the popularization of mechanized transportation, production and daily life tools, people realize that the waste generated during the use of various tools w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/02B22F9/08B22F1/00
CPCC22C9/02B22F9/082B22F2009/0828B22F2998/10B22F1/142B22F2009/0848B22F9/04
Inventor 江建平
Owner 安徽旭晶粉体新材料科技有限公司
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