Laminated silver-copper-brazing-filler-metal three-composite electrical contact material manufactured by coating and sleeving method and manufacturing method thereof

A manufacturing method and three-composite technology, applied in the field of alloy materials, can solve the problems of high cost of electrical contact materials, decline of economic benefits of enterprises, and failure to meet the development trend, etc., and achieve excellent resistance to fusion welding and arc burnout High performance, improved service life, and obvious effects of saving silver

Inactive Publication Date: 2016-10-26
WENZHOU LONGSUN ELECTRICAL ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, today's silver resources are very limited. With the increase of the amount, the price of silver will rise soaring, so that the cost of producing electrical contact materials will remain high, the economic benefits of enterprises will dec

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0048] Silver alloy / copper alloy / brazing material three-layer composite electrical contact material manufactured by sheath extrusion

[0049] 1. Prepare materials

[0050] (1) Manufacture of silver metal alloy powder

[0051] When making silver metal alloy powder, silver and added metal elements and rare earth elements are smelted at high temperature at a temperature of 1030-1400°C. After alloying, when the solution temperature is 1100±30°C, atomize it with high-pressure water to form The silver alloy powder is then dried and passed through a 200-mesh sieve, wherein the raw materials used are: 99% silver, 0.3% cerium, 0.5% yttrium, and 0.2% nickel.

[0052] (2) Manufacture of copper metal alloy powder

[0053]When manufacturing copper metal alloy powder, copper and added metal elements and rare earth elements are smelted at high temperature at a temperature of 1030-1400°C. After alloying, when the solution temperature is 1150±30°C, it is atomized with high-pressure water int...

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PUM

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Abstract

The invention discloses a laminated silver-copper-brazing-filler-metal three-composite electrical contact material manufactured by a coating and sleeving method and a manufacturing method thereof. Silver-alloy powder and copper-alloy powder are manufactured by using an atomization method or a powder mixing method; the silver-alloy powder and the copper-alloy powder are manufactured into a silver-alloy/copper-alloy band material; and then compounding is carried out on the silver-alloy/copper-alloy band material and a brazing filler metal to obtain a three-composite electrical contact material. Therefore, an electrical contact material having advantages of low material costs, excellent integrated electrical performances, silver saving and environmental protection is provided to replace the traditional copper-alloy contact material, silver-alloy contact material, and silver-copper-alloy contact material.

Description

technical field [0001] The invention relates to an alloy material, and more specifically relates to a layered silver-copper-brazing triple-composite electric contact material manufactured by a sheathing method. Background technique [0002] The core components of relays, contactors, and circuit breakers are electrical contacts (points), which undertake the heavy task of connecting and breaking currents. The quality of contact elements depends on the performance of electrical contact (points) materials and scientific and effective Combination, it is an important guarantee for electrical safety. [0003] At present, the most widely used contact materials on the market are silver alloy and copper alloy. Copper alloy contact materials are partly used in circuit breakers and high-voltage switches. Although copper alloy contact materials are cheap, copper alloy electrical contacts have poor oxidation resistance. The time from installation to commercial use varies, and electrical ...

Claims

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Application Information

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IPC IPC(8): H01H11/04H01H1/04
CPCH01H11/048H01H1/04
Inventor 蒋源冯如信郑元龙何高明
Owner WENZHOU LONGSUN ELECTRICAL ALLOY CO LTD
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