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A fiber copper-free composition for automobile brake pads, application and preparation method

A technology of composition and brake pads, which is applied in the direction of chemical instruments and methods, friction linings, mechanical equipment, etc., can solve the problems of large fluctuation range of friction coefficient, low wading recovery rate, high cost, etc., and achieve high temperature and thermal recession resistance The effect of good performance, avoiding thermal fading, and reducing the risk of hydrogen embrittlement

Active Publication Date: 2019-07-12
BEIJING TIANYISHANGJIA NEW MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the existing defects in the prior art that pollute the environment containing copper powder, the recovery rate of wading is low, the fluctuation range of the friction coefficient is large, and the cost is high, so as to provide a brake pad for automobiles. Fiber copper-free composition, application and preparation method thereof, the formulation cost is relatively low, and the friction performance is excellent

Method used

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  • A fiber copper-free composition for automobile brake pads, application and preparation method
  • A fiber copper-free composition for automobile brake pads, application and preparation method
  • A fiber copper-free composition for automobile brake pads, application and preparation method

Examples

Experimental program
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Effect test

experiment example 1

[0040] Using the same test conditions to test the friction coefficient of the X1 prepared in the comparative example and the compositions of Examples 1-6 within 600 ° C, the lowest value of the thermal fading coefficient, wading recovery rate, density, thermal expansion rate, impact strength, porosity , weight loss after AK-MASTER test, whether there are cracks on the surface after the test, etc. The specific data comparison is shown in Table 2.

[0041] The X1 that table 2 comparative example makes and the performance effect data of the composition of embodiment 1-6

[0042]

[0043]

[0044]As can be seen from Table 2, the performance of the copper-free fiber composition for automobile brake pads provided by the present invention is significantly better than that of X1, which may be due to the synergistic effect of each component in the composition of the present invention under a specific ratio. Through the comparison of data, it is found that the friction coefficient...

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Abstract

The invention discloses a novel fiber copper-free composition for an automobile brake pad, application and a preparation method thereof, and relates to the technical field of automobile brake pad preparation. According to the novel fiber copper-free composition for the automobile brake pad, aluminum fibers, kaolin, butyronitrile phenolic resin and amorphous graphite are used cooperatively. According to the novel fiber copper-free composition for the automobile brake pad, the aluminum fibers are added in a brake pad formula, and the aluminum fiber has high heat conductivity, so that friction heat produced during a braking process can be remarkably conducted, and the occurrence of a heat fading phenomenon is avoided.

Description

technical field [0001] The invention relates to the technical field of preparation of automobile brake pads, in particular to a fiber-free copper composition used for automobile brake pads. Background technique [0002] With the rapid development of automobile industry and transportation at home and abroad, on the one hand, the high growth rate has provided a market for friction material products; on the other hand, the increase in vehicle speed has put forward more stringent requirements for the performance of friction materials. The first is the requirement of environmental protection; the second is to have a good friction coefficient and wear resistance, with a certain heat resistance and mechanical strength; the last is to meet the market requirements, to ensure the performance while developing a more stable friction coefficient and better performance. Brake pad formulations are becoming more and more a trend. [0003] Automobile brake pads are an important part to ensu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/02F16D2200/006F16D2200/0086
Inventor 吴佩芳释加才让王亚军崔新亮范叶明党一纵王灿
Owner BEIJING TIANYISHANGJIA NEW MATERIAL
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