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Composite structure friction material and preparation method thereof

A composite structure and friction material technology, applied in textiles, papermaking, non-woven fabrics, etc., can solve problems such as poor mechanical properties, thermal conductivity, and poor interlayer shear performance, achieve high interlayer shear performance, and avoid cracking and delamination. , the effect of excellent friction performance and comprehensive performance

Active Publication Date: 2021-04-30
中京吉泰(北京)科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, especially to overcome the deficiencies of the friction material in the prior art in terms of mechanical properties, thermal conductivity, and interlayer shear performance, and to provide a thermal conductivity, interlayer shear Composite structure friction material with good cutting performance and comprehensive performance

Method used

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  • Composite structure friction material and preparation method thereof
  • Composite structure friction material and preparation method thereof
  • Composite structure friction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment provides a composite structure friction material and a preparation method thereof.

[0058] The composite structural friction material prepared in this example includes an inner layer group and two outer layer groups, the part near the friction surface is the outer layer group, the part far from the friction surface is the inner layer group, and the inner layer group is carbon fiber straight The outer layer group is a carbon fiber corrugated continuous reinforced friction layer group. The inner and outer plies are connected by needle-punched carbon fibers. The carbon fiber precursor used is pre-oxygen filament.

[0059] In the friction material prepared in this example, the inner layer group is a structural layer group, which is a three-dimensional acupuncture three-dimensional structure formed by cyclic layup of a flat non-woven fabric and a flat mesh tire after compaction and needle punching; the outer layer group is a friction material. The layer gr...

Embodiment 2

[0083] This embodiment provides another composite structure friction material and a preparation method thereof.

[0084] The friction material prepared in this example includes an inner layer group and two outer layer groups, the part near the friction surface is the outer layer group, the part far from the friction surface is the inner layer group, and the inner layer group is a straight continuous carbon fiber. The reinforcement structure layer group, the two outer layer groups are carbon fiber corrugated continuous reinforcement friction layer groups. The inner and outer plies are connected by needle-punched carbon fibers. The carbon fiber precursor used is pre-oxygen filament.

[0085] The inner layer group of the friction material prepared in this example is a structural layer group, which is a three-dimensional acupuncture three-dimensional structure formed by cyclic layup of a flat non-woven fabric and a flat mesh tire and then compacted and acupuncture, and the outer ...

Embodiment 3

[0102] This embodiment provides another composite structure friction material and a preparation method thereof.

[0103] The friction material prepared in this example includes an inner layer group and two outer layer groups, the part near the friction surface is the outer layer group, the part far from the friction surface is the inner layer group, and the inner layer group is a straight continuous carbon fiber. The reinforcement structure layer group, the two outer layer groups are carbon fiber corrugated continuous reinforcement friction layer groups. The inner and outer plies are connected by needle-punched carbon fibers. The carbon fiber precursor used is pre-oxygen filament.

[0104] The inner layer group of the friction material prepared in this example is a structural layer group, which is a three-dimensional acupuncture three-dimensional structure formed by cyclic layup of a flat non-woven fabric and a flat mesh tire and then compacted and acupuncture, and the outer ...

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Abstract

The invention discloses a composite structure friction material and a preparation method thereof. The composite structure friction material of the present invention includes at least one inner layer group and at least one outer layer group, the part near the friction surface is the outer layer group, the part far from the friction surface is the inner layer group, and the inner layer group is straight and continuous carbon fiber Reinforced structure layer group, the outer layer group is carbon fiber corrugated continuous reinforced friction layer group; the inner layer group and the outer layer group are connected by needle-punched carbon fiber. The invention also includes a preparation method of the composite structure friction material. The friction material prepared by the present invention adopts the straight continuous carbon fiber reinforced structure of the inner layer group and the continuous corrugated carbon fiber reinforced structure of the outer layer group with gradient changes. The materials for the main bearing function and the main friction function adopt different structures, which can be Guarantee the excellent comprehensive performance and friction performance of the friction material.

Description

technical field [0001] The invention relates to the technical field of C / C-SiC friction materials, in particular to a C / C-SiC friction material with a composite structure and a preparation method thereof. Background technique [0002] Compared with traditional metal and semi-metal friction materials, C / C-SiC friction materials have the advantages of low density, good corrosion resistance, stable friction coefficient, and good wear resistance. It is the friction material with the most development potential in the 21st century. It has good application prospects in braking fields such as aircraft, racing cars, heavy locomotives, and high-speed trains. [0003] According to the different lengths of reinforced carbon fibers, C / C-SiC friction materials are generally divided into short fiber reinforced and long fiber reinforced materials. Short fiber C / C-SiC friction materials are mainly made by mixing short carbon fibers, graphite powder, phenolic resin and other raw materials , ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/83C04B35/573C04B35/577C04B35/622C04B35/80D04H1/498D04H1/74
CPCC04B35/573C04B35/622C04B35/83C04B2235/5256C04B2235/614C04B2235/656C04B2235/6567C04B2235/96C04B2235/9607D04H1/498D04H1/74
Inventor 龙宪海周峰汪莉匡湘铭何家琪王成华杨敏
Owner 中京吉泰(北京)科技有限责任公司
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