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Deterioration resistant non-asbestos wrap type clutch face sheet and process for making same

A clutch surface, non-asbestos technology, applied in friction linings, mechanical equipment and other directions, can solve the problems of weak adhesion between rubber and non-asbestos fiber lines, affecting the braking ability of automobiles, and reducing the friction coefficient. The effect of stable friction performance, enhanced bending strength and enhanced bonding fastness

Inactive Publication Date: 2004-11-03
GANSU BUILDING MATERIALS DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, non-asbestos fiber friction plates produced at home and abroad are basically glass fiber, aramid fiber, and carbon fiber as substitutes for asbestos. The adhesion to the non-asbestos fiber thread is not strong, so that the clutch surface is easy to wear and fall off when it is in contact with the driven disc, resulting in a decrease in the friction coefficient and affecting the braking ability of the car

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1, mix 10% rubber, 8% compounding agent, 8% binder, 25% friction filler, and 6% lubricant evenly, and use masticating and mixing processes to refine into a uniform The mixed rubber is rolled into a thin film, and the thin film is dissolved into a glue with a solvent during use. The ratio of the film to the solvent is 1: 1.5, and the glue is prepared and put into the glue tank.

[0029] Put the non-asbestos fiber thread wound on the roller into the resin tank filled with silane coupling agent for impregnation, the commonly used γ-aminopropyltriethoxysilane in the silane coupling agent, the coupling agent molecule The reactive amino group and three ethoxy groups in it are easy to react with the surface of silicon-containing inorganic substances (mostly silicon-containing inorganic substances in non-asbestos fibers) to form silicon-hydrogen bonds and stick to resin. After impregnation, the non-asbestos fiber thread with resin on the surface enters the oven, dries t...

Embodiment 2

[0030] Embodiment 2, with 15% nitrile rubber, 5% sulfur, 5% cashew nut shell oil modified phenolic resin, 5% chromite powder, 5% cashew nut oil friction powder, 3% phosphorus flake graphite mixed and stirred Uniform, using mastication and kneading process, refining into uniform mixed rubber, and rolling it into thin film. When in use, dissolve the thin film into glue with 120# gasoline, wherein the weight ratio of film to gasoline is 1:1.2, after the glue is prepared, put it into the glue tank.

[0031] The core-spun glass fiber wire wound on the roller is impregnated with resin→drying→impregnated with glue→drying→winding→hot pressing to form the clutch face.

Embodiment 3

[0032] Embodiment 3, with 13% styrene-butadiene rubber, 5% sulfur, 6% anti-aging agent butyl, 7% cashew nut shell oil modified phenolic resin, 7% chromite powder, 8% cashew oil friction powder , 4% molybdenum disulfide is mixed evenly, using mastication and mixing process, refining into uniform mixed rubber, and rolling it into thin film, when using, dissolve the thin film into glue with 120# gasoline, Wherein the weight ratio of film and gasoline is 1: 1.3, and after the glue is prepared, put it into the glue tank.

[0033] The composite glass fiber thread is impregnated with resin→drying→impregnated with glue→drying→winding→hot pressing to form the clutch face.

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PUM

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Abstract

The present invention discloses one kind of anti-degradation non-asbestos wound clutch block and its making process. The anti-degradation non-asbestos wound clutch block contained non-asbestos fiber thread, rubber, compounding agent, adhesive, friction stuffing and lubricant and is formed through soaking in resin, stoving, soaking in adhesive slurry, stoving, winding, hot pressing and other steps. It has stable friction performance, better high temperature anti-degradation performance, less wear, long service life, great cracking strength and bending strength, no toxic asbestos fiber and no environmental pollution, and may be used to replace wound asbestos clutch.

Description

technical field [0001] The present invention relates to a vehicle brake component, in particular to an anti-fading non-asbestos wound clutch face. Background technique [0002] What generally use on the market at present is the asbestos wound type clutch plate. Because the characteristics of asbestos fibers determine that most of the products have better performance and lower prices, therefore, asbestos winding clutches have been widely used by people. However, this product also has its defects, such as poor high-temperature friction and wear performance and low strength, which are difficult to meet the needs of modern automobiles in the direction of high-speed and heavy-duty development. In particular, the pollution of asbestos to the environment and the harm to human health have attracted widespread attention. Using non-asbestos fiber instead of asbestos fiber, research and development of non-asbestos fiber friction material products has become an urgent problem to be so...

Claims

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Application Information

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IPC IPC(8): F16D69/02
Inventor 任增茂
Owner GANSU BUILDING MATERIALS DESIGN & RES INST CO LTD
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