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A brake pad that does not damage the disc

A technology of brake pads and iron sources, applied in friction linings, other chemical processes, chemical instruments and methods, etc., can solve the problems of wear, wheel brake disc wear, affecting the service life of brake discs, etc. The effect of service life, stable friction performance and stable friction coefficient

Active Publication Date: 2017-10-03
BEIJING TIANYISHANGJIA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the wear and tear of the brake pads in the prior art that will cause wear and tear to the wheel brake disc during use, which seriously affects the service life of the brake disc, thereby providing a wear-resistant Brake pads with good performance, stable friction coefficient and no damage to the disc

Method used

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  • A brake pad that does not damage the disc
  • A brake pad that does not damage the disc
  • A brake pad that does not damage the disc

Examples

Experimental program
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Effect test

Embodiment 1

[0051] This embodiment provides a brake pad that does not damage the disc, including the following raw material components:

[0052] Electrolytic copper powder, 50 parts by weight;

[0053] Reduced iron powder, 6 parts by weight;

[0054] Air atomized tin powder, 7 parts by weight;

[0055] Electrolytic manganese powder, 2 parts by weight;

[0056] Electrolytic chromium powder, 3 parts by weight;

[0057] Fluorite, 1 part by weight, containing CaF in the fluorite 2 The quality score is 94%;

[0058] Graphite, 16 parts by weight;

[0059] Aluminum oxide, 1 part by weight.

[0060] The brake pad that does not damage the disc is prepared by the following method:

[0061] (1) Weigh each raw material component according to the above parts by weight and place it in a ball mill for thorough mixing for 4 hours to obtain the mixture;

[0062](2) Carrying out mold molding to the compound described in step (1), obtains green body, the pressure that carries out described molding i...

Embodiment 2

[0065] This embodiment provides a brake pad that does not damage the disc, including the following raw material components:

[0066] Reduced copper powder, 58 parts by weight;

[0067] A mixture of water atomized iron powder and ferrochrome powder, 12 parts by weight; wherein, the weight percentage of the ferrochrome powder in the water atomized iron powder is 4%;

[0068] Electrolytic tin powder, 10 parts by weight;

[0069] Atomized manganese powder, 5 parts by weight;

[0070] Atomized chromium powder, 5 parts by weight;

[0071] Fluorite, with CaF 2 The mass fraction is 98%, 4 parts by weight;

[0072] Graphite, 24 parts by weight;

[0073] Aluminum oxide, 3 parts by weight.

[0074] The brake pad that does not damage the disc is prepared by the following method:

[0075] (1) Weigh each raw material component according to the above parts by weight and place it in a ball mill for thorough mixing for 6 hours to obtain the mixture;

[0076] (2) Carrying out mold moldi...

Embodiment 3

[0079] This embodiment provides a brake pad that does not damage the disc, including the following raw material components:

[0080] Water atomized copper powder, 52 parts by weight;

[0081] A mixture of water-atomized iron powder and nickel-iron alloy powder, 5 parts by weight; wherein, the weight percentage of the water-atomized iron powder accounted for by the nickel-iron alloy powder is 5%;

[0082] Chemical precipitation tin powder, 8 parts by weight;

[0083] Ball milled manganese powder, 3 parts by weight;

[0084] Ball milled chromium powder, 3 parts by weight;

[0085] Fluorite, with CaF 2 The mass fraction is 96%, 2 parts by weight;

[0086] Graphite, 17 parts by weight;

[0087] Aluminum oxide, 2 parts by weight.

[0088] The brake pad that does not damage the disc is prepared by the following method:

[0089] (1) Weigh each raw material component according to the above parts by weight and place it in a ball mill for thorough mixing for 6 hours to obtain the...

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Abstract

The brake pad that does not damage the disc provided by the present invention includes copper source, iron source, tin source, manganese source, chromium source, fluorite, graphite and aluminum oxide components in its raw material formula and carries out appropriate proportioning, The brake pads have good wear resistance, heat resistance and thermal crack resistance, can be applied to high temperature and high pressure conditions generated during train braking, and have a stable friction coefficient during use. The friction performance is stable, so as to effectively ensure that the brake disc will not be abnormally worn during use, and overcome the problem that the brake pads in the prior art are very easy to wear and wear the wheel brake disc during use. Therefore, The brake pad which does not damage the disc provided by the invention can not wear the brake disc while improving its own wear resistance, and can greatly prolong the service life of the brake disc.

Description

technical field [0001] The invention relates to the technical field of powder metallurgy, in particular to a brake pad that does not damage a disc. Background technique [0002] At present, there are mainly two types of brake pads used in railway train vehicles: synthetic material brake pads and powder metallurgy brake pads. The thermal load and temperature of high-speed train braking are large, the braking performance of synthetic material brake pads is unstable, and the braking power is low, which cannot meet the requirements of train operation. The performance of powder metallurgy brake pads is stable, with good wear resistance, anti-adhesion, thermal conductivity, porosity and working reliability. Germany, Japan, France, Italy, Sweden, Canada and other countries have applied powder metallurgy brake pads to high-speed Trains and high-power locomotives have achieved very good results. China's passenger trains, bullet trains, CRH2, CRH3 and other high-speed trains all use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C09K3/14
Inventor 吴佩芳释加才让曹静武龙波
Owner BEIJING TIANYISHANGJIA NEW MATERIAL
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