a relay

A relay and oxide technology, applied in circuits, electrical switches, electrical components, etc., can solve the problems of skyrocketing In prices, affecting the manufacturing cost of electrical contact materials, and depletion of In resources, achieving good corrosion resistance and anti-melting resistance. Welding performance, the amount of precious metal is greatly reduced, and the effect of improving contact performance

Active Publication Date: 2015-08-05
NINGBO ZETTLER ELECTRONICS
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  • 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
[0005]The moving reed is a key part of the relay. At present, a large number of single precious metals or composite materials of base metals and precious metals are still used in China, which is very important for improving Quality, cost reduction, saving precious metals are all detrimental
At present, the research on moving reed materials at home and abroad is still in its infancy.

Method used

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Embodiment 1

[0026] A relay, the contact adopts double-layer silver-based composite oxide electrical contact material, and the moving spring adopts reed composite material; the double-layer silver-based composite oxide electrical contact material includes two layers, one of which is AgCuZn layer, another layer is the compound oxide layer of silver, is fixed by fusing between two layers, wherein the preparation method of the compound oxide layer of silver comprises the following steps:

[0027] (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;

[0028] (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;

[0029] (3) isostatic pressing ingot, the alloy powder is processed into embryo ingot by isostatic pre...

Embodiment 2

[0040] A relay, the contact adopts double-layer silver-based composite oxide electrical contact material, and the moving spring adopts reed composite material; the double-layer silver-based composite oxide electrical contact material includes two layers, one of which is AgCuZn layer, another layer is the compound oxide layer of silver, is fixed by fusing between two layers, wherein the preparation method of the compound oxide layer of silver comprises the following steps:

[0041] (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;

[0042] (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;

[0043] (3) isostatic pressing ingot, the alloy powder is processed into embryo ingot by isostatic p...

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Abstract

The invention relates to a relay. The contact of the relay adopts a double-layer silver-based composite oxide electric contact material; and a moving spring adopts a spring piece composite material. The silver-based composite oxide electric contact material comprises two layers, wherein one layer is a AgCuZn layer; the other layer is a silver composite oxide layer; and the two layers are fixed through fusion. The silver composite oxide layer is prepared by Ag, Sn, La and Zr. The spring piece composite material is prepared by the components with the following mass percent: 10-15% of Be, 3-5% of Zn, 10-20% of Mn, with the balance being Cu. The contact performance of the silver-based composite oxide electric contact material is improved, and meanwhile, the usage amount of the silver material is saved, and thus the cost is greatly reduced. The spring piece of the relay has excellence welding performance, bending capability and improved current-carrying capability; preparation process is simple; the usage amount of precious metals is greatly reduced; and the cost is reduced.

Description

technical field [0001] The invention relates to a relay, in particular to a relay using new materials. 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 production Integration, so as to improve the technical grade and technical content of products, improve quality and reduce costs. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H1/0237H01H1/025
Inventor 陈岳建周波黄果林庆付
Owner NINGBO ZETTLER ELECTRONICS
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