Silver-nickel electric contact producing technology

A manufacturing process and technology of electric contacts, applied in the direction of contacts, circuits, electric switches, etc., can solve problems such as slow work, poor anti-welding performance, and difficult breakthrough in electrical performance, so as to improve comprehensive electrical performance and working life Long, excellent effect of arc erosion resistance

Active Publication Date: 2009-01-14
哈尔滨东大高新材料股份有限公司
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Problems solved by technology

[0004] In addition, with the development of low-voltage electrical appliances in the direction of miniaturization, high reliability, and long life, the AgCdO contact material also exposes shortcomings such as poor resistance to welding and severe arc erosion.
However, because the processing performance of Ag-Ni powder is relatively poor when it is processed into wire, and the electrical properties are difficult to break through, the domestic work of replacing AgCdO with Ag-Ni is currently carried out quite slowly.

Method used

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  • Silver-nickel electric contact producing technology

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] figure 1 One embodiment of the silver-nickel electrical contact manufacturing process of the present invention is shown.

[0019] Silver-nickel contact material is an environmentally friendly material developed in recent years. It has good welding resistance and arc erosion resistance, which can meet the requirements of high reliability and long life in electrical operation. With the enhancement of people's awareness of environmental protection, it will be the general trend to replace AgCdO electrical contact materials with silver-nickel electrical contact materials in the fields of low-power thermostats and relays.

[0020] There are mainly three mature processes for the production of silver-nickel electrical contact materials: powder mixing, ball milling, and co-precipitation. Among them, the raw materials of silver-nickel contacts ...

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Abstract

The present invention relates to a silver-nickel electric contact production process. It adopts: code position-ball grinding method' to prepare silver-nickel electric contact raw material powder. It is formed from powder body preparation engineering of silver-nickel material and silver-nickel powder body sintering, wire-drawing and riveting engineering. Besides, said invention also provides the concrete steps of the above-mentioned every engineering and its concrete requirements.

Description

technical field [0001] The invention relates to the field of production technology of electrical control components. In particular, it relates to the production of silver-nickel electrical contact raw material powder prepared by "ball milling-co-precipitation method" and adding a small amount of rare earth elements with the assistance of a high-speed shear emulsifier to achieve excellent arc extinguishing effect craft. Background technique [0002] The electric contact is an important component in the electrical control system. It is responsible for the task of connecting and breaking the current. Its performance directly affects the reliability, stability and accuracy of the control system and signal transmission system. [0003] At present, among a wide variety of electrical contact materials, silver-oxide (AgMeO) series products have been widely used due to their excellent properties. Especially the silver cadmium oxide AgCdO material is widely used in low-voltage elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H1/023H01H11/04
Inventor 乐百令
Owner 哈尔滨东大高新材料股份有限公司
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