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An alloy material for preparing electrical contacts

A technology of alloy materials and electric contacts, applied in contacts, circuits, electric switches, etc., can solve the problems of high cost of precious metal silver and easy oxidation of copper, and achieve good arc extinguishing performance, good oxidation resistance and wear resistance Excellent, strong anti-welding effect

Pending Publication Date: 2016-11-02
西安立伟电子科技有限责任公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] Most of the existing electrical contacts use silver-based or copper-based conductor materials, but the precious metal silver is expensive, and copper is also easily oxidized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1, an alloy material for preparing an electric contact, weighing 15 parts of titanium chromium, 5 parts of nano-diamond, 5 parts of titanium powder, 7 parts of conductive ceramics, 4 parts of diamond powder, and 3 parts of boron powder , 6 parts of niobium powder, 2 parts of lithium carbonate, 3 parts of phosphorus, 1 part of reducing agent, 1 part of cerium, 3 parts of germanium dioxide, and 4 parts of lanthanum oxide; the components in the above formula are mixed to prepare 59 parts of the present invention.

Embodiment 2

[0015] Example 2, an alloy material for preparing electric contacts, the raw materials are weighed 34 parts of titanium chromide, 10 parts of nano-diamond, 10 parts of titanium powder, 17 parts of conductive ceramics, 13 parts of diamond powder, boron 9 parts of niobium powder, 11 parts of niobium powder, 10 parts of lithium carbonate, 10 parts of phosphorus, 9 parts of reducing agent, 9 parts of cerium, 9 parts of germanium dioxide, and 8 parts of lanthanum oxide; 159 parts of this product were obtained after full reaction.

[0016] Compared with the prior art, the alloy material of the present invention for preparing electric contacts adds titanium chromium, nano-diamond, titanium powder, conductive ceramics, etc., so that the material has strong welding resistance, arc extinguishing performance and oxidation resistance. It has good electrical conductivity, similar conductivity to silver-based electrical contact composite materials, and excellent wear resistance. It can be us...

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PUM

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Abstract

The invention discloses an alloy material for preparing electric contacts, which comprises 15-34 parts of titanium chromide, 5-10 parts of nano-diamond, 5-10 parts of titanium powder, 7-17 parts of conductive ceramics and 4-13 parts of diamond powder , 3-9 parts of boron powder, 6-11 parts of niobium powder, 2-10 parts of lithium carbonate, 3-10 parts of phosphorus, 1-9 parts of reducing agent, 1-9 parts of cerium, 3-9 parts of germanium dioxide, 4-8 parts of lanthanum. An alloy material for preparing electrical contacts of the present invention, adding titanium chromium, nano-diamond, titanium powder, conductive ceramics, etc., makes the material have strong welding resistance, good arc extinguishing performance and oxidation resistance, electrical conductivity, resistance It has superior grinding properties and can be used as an inexpensive substitute for silver alloy electrical contacts used in low voltage switches.

Description

technical field [0001] The invention belongs to the field of electric contact materials, in particular to an alloy material for preparing electric contacts. Background technique [0002] As the core component of medium and high voltage switchgear, electrical contacts play the role of breaking and conducting, and are widely used in various high-voltage load switches, SF6 circuit breakers, on-load tap-changers, large breaking capacity isolating switches and grounding switch. [0003] Electrical contacts are mainly divided into rivet type electrical contacts, powder metallurgy contacts, sheet contacts and so on. [0004] Electric contacts are important components of high-voltage circuit breakers, switch cabinets, disconnectors, and grounding switches, and their performance directly affects the quality and service life of these high-voltage electrical appliances. [0005] Most of the existing electrical contacts use silver-based or copper-based conductor materials, but the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H1/021C22C30/00B22F1/00
Inventor 李超
Owner 西安立伟电子科技有限责任公司
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