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Carbon material penetrated asphalt sintering method

A sintering method and carbon material technology, applied in the sintering field of carbon material pitch infiltration, can solve the problems of many internal voids, low electrical conductivity, easy arcing, etc., and achieve the effects of uniform texture, high electrical conductivity and simple operation.

Inactive Publication Date: 2015-02-11
SHANGHAI RONGJI CONTROL SYST
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Problems solved by technology

[0003] The carbon block used in various occasions adopts the technology of carbon material mixed with powder and then sintered; but compared with imported high-grade carbon block, it has the following disadvantages: fast wear, short life; easy to crack; low conductivity, easy to arc
[0005] Low density, many internal voids, easy to crack; low conductivity, easy to oxidize and arc; fast wear, short life

Method used

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  • Carbon material penetrated asphalt sintering method

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specific Embodiment approach

[0020] Such as figure 1 Shown, a kind of carbon material asphalt sintering method comprises the following steps:

[0021] (1): Mix material A;

[0022] (2): Briquetting the mixed material A;

[0023] (3): Sintering the compacted material A;

[0024] (4): Infiltrating the sintered carbon material into material B and sintering;

[0025] The present invention also includes step (5): repeating step (4) several times.

[0026] The material A is carbon powder or a composite material containing carbon molecules or a combination thereof. The material B is asphalt or a material containing asphalt.

[0027] The present invention adopts multiple sintering technology, various carbon materials are mixed, pressed and formed, after one sintering, liquid pitch is infiltrated, and when the pitch fills the inner space, it is sintered again. The structure fusion makes the voids in the material smaller. According to the requirements of different application occasions, it can be infiltrated...

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Abstract

The invention discloses a carbon material penetrated asphalt sintering method. The method comprises the following steps: mixing material A; briquetting the mixture A; sintering the briquetted material A; penetrating a material B into the sintered carbon material, and sintering. The method has the advantages of simple operation, and no need of special devices; asphalt penetrated different times can meet the demands of different occasions; and molded penetrated asphalt has the advantages of uniform texture, no internal cavity, no concentrated stress, difficult crack, high conductivity, wear resistance and long life.

Description

technical field [0001] The invention relates to a carbon material sintering method, more precisely a carbon material pitching sintering method. Background technique [0002] At present, mature carbon blocks on the market are used in carbon brushes of various motors and conductive devices of various locomotives, but they cannot be used in high-end occasions such as high-speed motors, high-speed rails, and subways. Due to the simple and rough production process of domestic carbon blocks, resulting in All aspects of performance and stability are poor, mainly in terms of density, uniformity, conductivity and other parameters compared with imported similar products. [0003] The carbon block used in various occasions adopts the technology of carbon material mixed powder and then sintered; but compared with imported high-grade carbon block, it has the following disadvantages: fast wear, short life; easy to crack; low conductivity, easy to arc. [0004] The prior art has disadvant...

Claims

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Application Information

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IPC IPC(8): C01B31/02
Inventor 不公告发明人
Owner SHANGHAI RONGJI CONTROL SYST
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