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Automotive brake pad with high graphite content and high friction property and stability and preparation method

A technology with high friction and stability, applied in the field of materials science, can solve the problems of poor friction resistance and stability of brake pads, and achieve the effects of excellent stability of friction performance, simple and easy-to-master process, and low wear rate

Inactive Publication Date: 2017-05-31
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the above-mentioned technical problems in the prior art, the present invention provides an automobile brake pad with high graphite content and high friction performance stability and a preparation method thereof, the automobile brake pad with high graphite content and high friction performance stability The preparation method thereof should solve the technical problems of the friction resistance and poor stability of the brake pads in the prior art

Method used

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  • Automotive brake pad with high graphite content and high friction property and stability and preparation method
  • Automotive brake pad with high graphite content and high friction property and stability and preparation method
  • Automotive brake pad with high graphite content and high friction property and stability and preparation method

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Experimental program
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Effect test

Embodiment 1

[0042] Table 1 Embodiment 1 formula (18-3)

[0043] material name weight percentage Potassium hexatitanate whiskers 8 carbon fiber 4 Phenolic Resin 7 fluororubber 6 Calcined Petroleum Coke 6 graphite 10 flake graphite 5 Granular graphite with a fineness of 16-20 mesh 10 Granular graphite with a fineness of 30-40 mesh 11 calcium carbonate 8 white vermiculite 8.5 Potassium feldspar 3 Aluminum silicate hollow ball 4 iron black 3 Aluminum oxide 1.5 Mica 2 Antimony sulfide 1 Molybdenum disulfide 2

Embodiment 2

[0044] Table 2 embodiment 2 formula (18-4)

[0045]

[0046]

Embodiment 3

[0047] Table 3 Embodiment 3 formula (17-2)

[0048]

[0049]

[0050] Table 4 embodiment 4 formula (17-4)

[0051] material name weight percentage Potassium hexatitanate whiskers 8 carbon fiber 4 Phenolic Resin 7 fluororubber 4 Calcined Petroleum Coke 6 graphite 10 flake graphite 5 Granular graphite with a fineness of 16-20 mesh 9 Granular graphite with a fineness of 30-40 mesh 12 calcium carbonate 11 white vermiculite 11 Potassium feldspar 3 Aluminum silicate hollow ball 0 iron black 3 Aluminum oxide 2 Mica 2 Antimony sulfide 1 Molybdenum disulfide 2

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Abstract

The invention provides an automotive brake pad with high graphite content and high friction property and stability. The automotive brake pad is prepared from potassium hexatitanate whisker, carbon fiber, phenol formaldehyde resin, fluorine rubber, calcined petroleum coke, graphite, flake graphite, grain graphite with the fineness of 16 meshes to 20 meshes, grain graphite with the fineness of 20 meshes to 40 meshes and filling. The invention further provides a preparation method of the automotive brake pad; the preparation method comprises the following steps after metering all the components in percentage by weight, putting the components into a stirrer and stirring and sufficiently mixing; weighing and adding raw material powder into a mold and putting the mold into a hot press; carrying out mold pressing and molding, pressure keeping and cooling; after de-molding, putting a product into a baking oven and carrying out heat treatment; carrying out heat treatment for 6h to 10h at the temperature of 120 DEG C to 160 DEG C; grinding through a grinding machine and spraying to obtain the automotive brake pad with the high graphite content and the high friction property and stability. The automotive brake pad provided by the invention has the characteristics of low noises, low heat fading, extremely stable friction coefficient, extremely low abrasion rate, uneasiness of damaging coupled parts and the like.

Description

technical field [0001] The invention belongs to the field of materials science and relates to an automobile brake pad, in particular to an automobile brake pad with high graphite content and high friction performance stability and a preparation method thereof. Background technique [0002] The brake pad is a key component in the braking system, and the friction material determines the friction performance and service life of the brake pad. Automobile friction materials are composed of matrix, lubricating phase and friction increasing phase, and the content, structure and performance of each component material also determine the friction and wear performance of friction materials. Graphite is currently the most widely used lubricating material, which can effectively promote the formation of a solid lubricating film on the friction surface, thereby reducing the wear rate; and it still has excellent stability in high temperature and harsh environments. But so far, there are fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
Inventor 何美凤王瑞刘芳江鸿霍俊昊范宝中
Owner UNIV OF SHANGHAI FOR SCI & TECH
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