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Contact metal material

A technology of metal materials and contacts, applied in contacts, electrical components, electric switches, etc., can solve the problems of low hardness of silver, easy volatilization of silver, and electrical erosion spikes, etc., and achieve easy promotion, physical and chemical properties of materials Stable, insoluble effect

Inactive Publication Date: 2016-08-31
NANTONG ZHIBANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The early electrical contact materials mostly used pure silver, but the hardness of silver is not high, the melting point is low, and it is not wear-resistant. In humidity and high temperature, in the medium containing sulfur and sulfide, a silver sulfide film will be formed on the surface ; Under the action of direct current, due to the low hardness and easy volatilization of silver, electrical erosion spikes will be formed; under the condition of heavy load, the original silver electrical contact is easy to form an arc and melt it
It has brought great troubles to the majority of users and power stations, so an improved technology is urgently needed to solve the above technical defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A contact metal material comprising the following components in parts by weight:

[0038] Ag: 90 parts;

[0039] Cu: 8 parts;

[0040] Zn: 7 parts;

[0041] Bi: 6 parts;

[0042] Ti: 5 parts;

[0043] Te: 0.8 parts;

[0044] Mn; 1.25 parts;

[0045] Cd: 1.3 parts;

[0046] Pd: 5 parts.

Embodiment 2

[0048] Preferably, the following components are included in weight percent:

[0049] Ag: 100 parts;

[0050] Cu: 10 parts;

[0051] Zn: 10 parts;

[0052] Bi: 10 parts;

[0053] Ti: 7 parts;

[0054] Te: 1 part;

[0055] Mn; 1.5 parts;

[0056] Cd: 1.5 parts;

[0057] Pd: 6 servings.

Embodiment 3

[0059] Preferably, the following components are included in weight percent:

[0060] Ag: 80 parts;

[0061] Cu: 5 parts;

[0062] Zn: 5 parts;

[0063] Bi: 5 copies;

[0064] Ti: 2 parts;

[0065] Te: 0.1 parts;

[0066] Mn; 1 part;

[0067] Cd: 1 part;

[0068] Pd: 2 parts.

[0069] In humid and high temperature, it will not form a vulcanized film under the medium containing sulfur and sulfide, and under the action of direct current, it will not form electrical erosion spikes; under the condition of heavy load, it is not easy to dissolve, and it is difficult to dissolve during use. The physical and chemical properties of the material are relatively stable and easy to promote.

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PUM

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Abstract

The invention discloses a contact metal material. The contact metal material comprises, by weight, 80-100 parts of Ag, 5-10 parts of Cu, 5-10 parts of Zn, 5-10 parts of Bi, 2-7 parts of Ti, 0.1-1 part of Te, 1-1.5 parts of M, 1-1.5 parts of Cd and 2-6 parts of Pd. The contact metal material has the beneficial effects that in the humid environment and at the high temperature, it is indicated that no sulfuration film is generated under the action of media containing sulfur and sulfide; no electric erosion spike is generated under the action of direct currents; and the contact metal material is not prone to being dissolved under the high-load condition, the physical properties and chemical properties of the material are stable in the using process, and popularization is easy.

Description

technical field [0001] The invention relates to a contact metal material. Background technique [0002] Electrical contacts are components in switching appliances that are directly responsible for making and breaking circuits. They play a decisive role in the safe operation of switching appliances, and their performance directly affects the breaking capacity, service life and operational reliability. Electrical contacts must meet the requirements of low welding resistance, contact resistance and wear resistance. With the rapid development of modern industry, the load of high-voltage transmission network is increasing day by day, and the level of automatic power control is constantly improving, which puts forward higher requirements for the reliability and electrical life of electrical contacts. Among electrical contact materials, silver metal oxide ( A g -M e o ) materials are widely used in low-voltage electrical appliances due to their good electrical wear resistance, wel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/06C22C5/08H01H1/023
CPCC22C5/06C22C5/08H01H1/023
Inventor 赵文刚
Owner NANTONG ZHIBANG NEW MATERIAL TECH