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Copper-chromium-based electrical contact self-lubricating composite material and preparation method and application thereof

A composite material and electrical contact technology, applied in the field of electrical conductive materials, can solve the problems of electrical contact composite materials without relevant reports, and achieve the effects of improving tribological properties, reducing friction coefficient and wear rate, and excellent mechanical properties.

Inactive Publication Date: 2017-01-04
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In addition, there is no related report on copper-chromium-based electrical contact composites containing chromium and titanium-silicon carbon, with layered structure of titanium-silicon carbon as a solid lubricant, and chromium as a strengthening phase

Method used

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  • Copper-chromium-based electrical contact self-lubricating composite material and preparation method and application thereof
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  • Copper-chromium-based electrical contact self-lubricating composite material and preparation method and application thereof

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation examples.

[0027] The source (purchasing factory) / model of each main raw material / equipment in the present invention is:

[0028] Copper powder: Dongguan Huida Gold Foil Company, the model is 200 mesh;

[0029] Chromium powder: Beijing Taixinlong Metal Materials Processing Factory, the model is 300 mesh;

[0030] Titanium silicon carbide: self-made;

[0031] Planetary Ball Mill Mixer: Model: QM-3SP2, Nanjing University Instrument Factory;

[0032] Mold: Zhenjiang Jinshan Petrochemical Plant;

[0033] Tube furnace: GSL1600X, Hefei Kejing;

[0034] Inert gas: Ar gas, Jiangsu Zhenjiang Thorpe Group;

[0035] Press: Zhenjiang Aode Press Factory;

[0036] According to the following steps, prepare according to the ratio of raw materials of the data in Examples 1 to 5 in Table 1:

[0037] S1, mixing copper powder, chromium powder, and titani...

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Abstract

The invention provides a copper-chromium-based electrical contact self-lubricating composite material and a preparation method and application thereof. The preparation method comprises the following steps that S1, copper powder, chromium powder and titanium silicon carbon are proportioned according to the mass percent, so that a mixed material is prepared; S2, the mixed material in the step S1 and stainless steel grinding balls are proportioned according to the mass ratio, sealed and put into a stainless steel ball grinding pot of a planetary ball grinding mixer, the stainless steel ball grinding pot is vacuumized and filled with inert gas, and mixed powder is prepared through ball grinding; S3, the mixed powder in the step S2 is put into a mold, and a composite material pressing blank is obtained through pressing forming; and S4, the composite material pressing blank in the step S3 is put into a pipe furnace, the pipe furnace is filled with inert gas, the composite material pressing blank is cooled along with the furnace after high-temperature sintering, and the electrical contact self-lubricating composite material is prepared. According to the copper-chromium-based electrical contact self-lubricating composite material and the preparation method and application thereof, the technology is simple; the production process is free of pollution to the environment; the operability is high; and the finished copper-chromium-based electrical contact self-lubricating composite material serves as an electrical contact material and is widely applied in the fields of transportation, metallurgy, shipbuilding, machinery, electric power, aviation and the like.

Description

technical field [0001] The invention relates to a composite material, in particular to a copper-chromium-based electrical contact self-lubricating composite material and its preparation method and application, belonging to the technical field of conductive materials. Background technique [0002] Electrical contact materials (including silver-based electrical contact materials and copper-based electrical contact materials) are the key to electrical alloys. [0003] Functional materials are used for high and low voltage switch contacts, collector rings of generators, contacts of relays, etc. Their performance directly affects the technical level of power generation equipment and power transmission and transformation equipment. Silver-based electrical contacts are widely used in various low-voltage electrical appliances, and are the core components of low-voltage electrical appliances. They are widely used in power distribution systems, household appliances, transportation and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C1/04H01H1/025
CPCC22C9/00B22F2998/10B22F2999/00C22C1/0425H01H1/025B22F2009/043B22F3/02B22F3/1007B22F2201/11
Inventor 李长生李剑锋陈林波张帅
Owner JIANGSU UNIV
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