A kind of double-layer silver-based composite oxide electrical contact material and its application

A composite oxide and silver-based composite technology, applied in the direction of contact materials, etc., can solve the problems affecting the manufacturing cost of electrical contact materials, the skyrocketing price of In, and the depletion of In resources, so as to achieve consumption saving, good corrosion resistance and anti-corrosion Welding performance and the effect of improving contact performance

Active Publication Date: 2016-01-20
NINGBO ZETTLER ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, In is a rare metal, and it is being widely used as a raw material for ITO transparent electrodes in recent liquid crystal or plasma display devices. Therefore, In resources are facing the problem of depletion, and the skyrocketing price of In also affects electrical contact materials. manufacturing cost

Method used

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  • A kind of double-layer silver-based composite oxide electrical contact material and its application

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Effect test

Embodiment 1

[0029] The double-layer silver-based composite oxide electrical contact material A includes two layers, one of which is an AgCuZn layer, and the other layer is a silver composite oxide layer. The two layers are fixed by fusion, and the silver composite oxide layer is The preparation method comprises the following steps:

[0030] (1) Alloy smelting. Ag, Sn, La, Zr are mixed according to the following mass percentages and then smelted to form an alloy melt, wherein Sn is 10%, La is 1%, Zr is 5%, and the balance is Ag. The melting temperature 600°C;

[0031] (2) Gas atomization powder making, the alloy melt is atomized by high-pressure atomization equipment to make alloy powder, wherein the gas atomization pressure is 10MPa;

[0032] (3) isostatic pressing ingot, the alloy powder is processed into embryo ingot by isostatic pressing ingot, and the pressure is controlled at 150MPa;

[0033] (4) sintering, sintering the billet in a nitrogen atmosphere at a sintering temperature of...

Embodiment 2

[0037] The double-layer silver-based composite oxide electrical contact material B includes two layers, one of which is an AgCuZn layer, and the other layer is a silver composite oxide layer, and the two layers are fixed by fusion, wherein the silver composite oxide layer is The preparation method comprises the following steps:

[0038] (1) Alloy smelting. Ag, Sn, La, Zr are mixed according to the following mass percentages and then smelted to form an alloy melt, wherein Sn is 5%, La is 2%, Zr is 5%, and the balance is Ag. The melting temperature is 800°C;

[0039] (2) Gas atomization powder making, the alloy melt is atomized by high-pressure atomization equipment to make alloy powder, wherein the gas atomization pressure is 15MPa;

[0040] (3) isostatic pressing ingot, the alloy powder is processed into embryo ingot by isostatic pressing ingot, and the pressure is controlled at 120MPa;

[0041] (4) Sintering, sintering the billet in a nitrogen atmosphere at a sintering temp...

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Abstract

The invention relates to a double-layer silver-based composite oxide electrical contact material and an application thereof. The silver-based composite oxide electrical contact material comprises two layers. One layer is an AgCuZn layer, the other layer is a silver composite oxide layer, the two layers are fixed through fusion, and the silver composite oxide layer is prepared by Ag, Sn, La and Zr. The silver-based composite oxide electrical contact material, while improving contact performance, also saves the use amount of a silver material and substantially reduces the cost.

Description

technical field [0001] The invention relates to a double-layer silver-based composite oxide electrical contact material and its application, in particular to an electrical contact material suitable for an AC relay or an automotive relay. Background technique [0002] China's relay industry, for a long time, its production technology and production process have been mainly produced in cheap labor-intensive production methods, so the product quality, performance and price have shortcomings in the international market competition, and the performance of the same product with the same specification is very different. big difference. Therefore, the way out for the domestic relay industry lies in continuously improving the manufacturing precision of parts, focusing on product research and development, improvement of assembly production mode and improvement of reliability, in order to realize automation or semi-automation of assembly production process, and finally realize product ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H1/04C22C1/10C22C1/04
Inventor 陈岳建周波黄果林庆付
Owner NINGBO ZETTLER ELECTRONICS
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