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A kind of environment-friendly high-performance composite brake pad material and preparation method

A high-performance, environmentally friendly technology, applied in the field of brake pad materials, can solve the problems of unsatisfactory wear resistance, unfriendly environment and human body, poor high temperature resistance, etc., achieve low noise, inhibit thermal decomposition, and combine well.

Inactive Publication Date: 2019-10-18
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the current brake pad materials are compounded with a variety of new materials, their friction performance and environmental friendliness under high-speed and heavy loads have been improved to a certain extent, but they still have poor high temperature resistance, thermal fading, wear resistance is not very ideal, and the braking distance is long. , the disadvantages of loud noise during use, unfriendly to the environment and human body, etc.

Method used

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  • A kind of environment-friendly high-performance composite brake pad material and preparation method
  • A kind of environment-friendly high-performance composite brake pad material and preparation method
  • A kind of environment-friendly high-performance composite brake pad material and preparation method

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Embodiment 1

[0034] In parts by weight, the raw materials of the environment-friendly high-performance composite brake pad material in this embodiment include the following components: 8 parts of modified phenolic resin, 30 parts of reinforcing fiber, 11 parts of artificial graphite, 3 parts of petroleum coke, 3 parts of expanded Toughened graphite, 3.5 parts of zinc sulfide, 1 part of stannous sulfide, 0.5 parts of molybdenum disulfide, 26 parts of friction powder, 10 parts of barium sulfate, 4 parts of dolomite.

[0035] The reinforcing fiber is a mixture of potassium titanate fiber, calcium silicate fiber, aramid fiber and mineral fiber; the mass ratio of potassium titanate fiber, calcium silicate fiber, aramid fiber and mineral fiber is 10:10:3:7 ;

[0036] The friction powder is a mixture of brown corundum powder and NiTi alloy powder, and the mass ratio of NiTi alloy powder to brown corundum powder is 21:5;

[0037] In parts by weight, the amount of brown corundum powder added in th...

Embodiment 2

[0049] The environment-friendly high-performance composite brake pad material of this embodiment comprises the following components by weight: 9 parts of modified phenolic resin, 23 parts of reinforcing fiber, 8 parts of artificial graphite, 2 parts of petroleum coke, and 3 parts of expanded and toughened graphite , 5 parts of zinc sulfide, 2 parts of stannous sulfide, 1 part of molybdenum disulfide, 36 parts of friction powder, 8 parts of barium sulfate, and 3 parts of dolomite.

[0050] The reinforcing fiber is a mixture of potassium titanate fiber, calcium silicate fiber, aramid fiber and mineral fiber; the ratio is potassium titanate fiber: calcium silicate fiber: aramid fiber: mineral fiber=8:8:2: 5;

[0051] The friction powder is a mixture of brown corundum powder and NiTi alloy powder, and the ratio of NiTi alloy powder to brown corundum powder is 29:7;

[0052] The amount of brown corundum powder added in the brake pad material is 7 parts;

[0053] Further, the part...

Embodiment 3

[0065] The environment-friendly high-performance composite brake pad material of this embodiment comprises the following components by weight: 8 parts of modified phenolic resin, 19 parts of reinforcing fiber, 7 parts of artificial graphite, 1 part of petroleum coke, and 3 parts of expanded and toughened graphite , 8 parts of zinc sulfide, 3 parts of stannous sulfide, 3 parts of molybdenum disulfide, 41 parts of friction powder, 5 parts of barium sulfate, and 2 parts of dolomite.

[0066] The reinforcing fiber is a mixture of potassium titanate fiber, calcium silicate fiber, aramid fiber and mineral fiber; the ratio is potassium titanate fiber: calcium silicate fiber: aramid fiber: mineral fiber=7:6:3: 3;

[0067] The friction powder is a mixture of brown corundum powder and NiTi alloy powder, and the ratio of NiTi alloy powder to brown corundum powder is 35:6;

[0068] The amount of brown corundum powder added in the brake pad material is 6 parts;

[0069] Further, the part...

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Abstract

The invention discloses an environment-friendly high-performance composite brake pad material and a preparation method thereof. The raw material formula of the environment-friendly high-performance composite brake pad material comprises modified phenolic resin, reinforcing fibers, artificial graphite, petroleum coke, expanded toughened graphite, zinc sulfide, stannous sulfide, molybdenum disulfide, friction powder, barium sulfate and dolomite, wherein the reinforcing fibers are a mixture of potassium titanate fibers, calcium silicate fibers, aramid fibers and mineral fibers; and the friction powder is the mixture of the brown fused alumina powder and a NiTi alloy powder. The interface of the fibers and the powder particles in the brake pad is well combined, the interface, the NiTi alloy, the brown fused alumina, the zinc sulfide, the graphite have a synergistic effect, and the environment-friendly high-performance composite brake pad material and the preparation method thereof have good high-temperature resistance (600-1000 DEG C high temperature can be resisted), wear resistance, high in a friction coefficient (of 0.40-0.62), long in service life, low in noise, and the like; and moreover, all the raw materials are environment-friendly materials, so that no harm is caused to the environment and the human body.

Description

technical field [0001] The invention relates to the technical field of brake pad materials, in particular to an environment-friendly high-performance composite brake pad material and a preparation method. Background technique [0002] With the rapid development of the automobile and high-speed rail industry, automobiles and high-speed rail are gradually developing in the direction of comfort and environmental protection, high speed and heavy load, and long life, which puts forward higher and higher requirements for the stability and reliability of the braking system of automobiles and high-speed rail . The essence of the braking of automobiles and high-speed rail is to convert the huge kinetic energy (locomotive running at high speed) into heat energy through the friction between the brake pads and the brake disc, and most of the heat energy is absorbed by the brakes to cause the temperature to rise. Brake pad material is the key material of brake friction braking devices s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02B29C67/24C09K3/14B29L31/16
Inventor 袁斌陈向东林志伟高岩朱敏
Owner SOUTH CHINA UNIV OF TECH
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