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Copper-based alloy environment-friendly contact and manufacturing process thereof

A copper-based alloy and manufacturing process technology, which is applied to contacts, electrical components, circuits, etc., can solve the problems of high price, breaking capacity, and insufficient electrical conductivity, and achieve the effects of low price, small arc, and low resistance

Inactive Publication Date: 2011-01-05
温州银泰合金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used silver cadmium oxide contact materials are very expensive, and have many deficiencies in breaking capacity and electrical conductivity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Copper-based alloy environmental protection contacts, its composition elements are zr1-1.8%, Ni1-2%, cr1-1.6%, 1-2% rare earth, the balance is cu; the best value of zr is 1.4%, the best value of Ni 1.5%, the optimal value of cr is 1.3%, the rare earth is 1.5%, and the balance is cu;

[0021] Copper-based alloy environmental protection contact and its manufacturing process, the steps are as follows:

[0022] The first step, material production:

[0023] Put the copper-based powder and the constituent element rare earth in the powder mixer according to the above-mentioned ratio and mix them evenly, and use the 250-ton four-column hydraulic machine produced by Dezhou Tianfeng Hydraulic Tool Factory to make the mixed alloy powder into a round spindle shape, and then Place the ingot in a furnace heated at 800-900°C, preferably 820°C, keep warm and then cool;

[0024] The second step is to heat the alloy ingot at 800-900°C, and use the injection molding press produced by Wu...

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PUM

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Abstract

The invention discloses a copper-based alloy environment-friendly contact and a manufacturing process thereof. The contact comprises the following elements: 1 to 1.8 percent of Zr, 1 to 2 percent of Ni, 1 to 1.6 percent of Cr, 1 to 2 percent of rare earth and the balance of Cu, preferably 1.4 percent of Zr, 1.5 percent of Ni, 1.3 percent of Cr, 1.5 percent of rare earth and the balance of Cu. The contact has the advantages of low material price, good electric conductivity, low resistance, strong breaking capacity, high hardness, abrasion resistance, corrosion resistance, small electric arc and the like. The average service life of the contact far is longer than the service life of the current general contact materials such as silver cadmium oxide, silver tin oxide and the like, and the contact manufactured by the process is mainly applied to a low-voltage electric appliance.

Description

technical field [0001] The invention relates to an electrical contact alloy contact material and a preparation method thereof. Background technique [0002] Contacts are often used in power electrical control equipment such as miniature circuit breakers, AC contactors, electricians, home appliances, and automobiles. Currently commonly used silver cadmium oxide contact materials are very expensive, and have many deficiencies in breaking capacity and electrical conductivity. Contents of the invention [0003] Aiming at the shortcomings of the existing contacts, the present invention provides an environment-friendly copper-based alloy environment-friendly contact and its manufacturing process. [0004] In order to achieve the above object, the technical scheme that the present invention takes is: [0005] Copper-based alloy environmental protection contacts, its constituent elements are zr1-1.8%, Ni1-2%, cr1-1.6%, 1-2% rare earth, and the balance is cu; [0006] The optima...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H1/025H01H11/04C22C9/00C22C9/06B22F3/16
Inventor 陈长晶
Owner 温州银泰合金材料有限公司
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