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Asbestos-free metal-free drum brake lining used in vehicle and manufacture method therefor

A drum brake, metal-free technology, applied in the direction of friction linings, mechanical equipment, etc., can solve the problems of high hardness, environmental pollution, damage and thermal expansion, etc., to achieve high porosity, stable friction coefficient, and good friction performance Effect

Inactive Publication Date: 2007-09-12
福建冠良汽车配件工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a production formula and production process of asbestos-free and metal-free automotive drum brake linings, which not only solves the problem of environmental pollution caused by the use of asbestos, but also avoids the use of steel fibers that cause excessive hardness and damage. And duality and thermal expansion and other disadvantages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0015] According to the various raw materials of the following selected formula, the total amount is 100 kilograms, and its weight ratio is: polyacrylonitrile fiber: cashew nut shell oil friction powder: barite powder: heavy calcium carbonate: powder acrylonitrile-butadiene rubber: mineral fiber: Phosphor flake graphite: zircon powder: cashew nut shell oil modified phenolic resin: premix: glass fiber=8: 7: 15: 13: 10: 5: 15: 2: 10: 5: 10. Proportional polyacrylonitrile fiber, cashew nut shell oil friction powder, barite powder, heavy calcium carbonate, powder nitrile rubber are put into mixer and mixed for 5 minutes, then add mineral fiber, phosphorus flake graphite, Zircon powder, cashew nut shell oil modified phenolic resin, and premix were stirred and mixed for 15 minutes, and finally added the glass fiber in the proportion and stirred and mixed for 5 minutes, and released after the mixture was uniform, and the mixed material was pressed After the specification of the requi...

example 2

[0017] According to the various raw materials of the following selected formula, the total amount is 100 kilograms, and its weight ratio is: polyacrylonitrile fiber: cashew nut shell oil friction powder: barite powder: heavy calcium carbonate: powder acrylonitrile-butadiene rubber: mineral fiber: Phosphor flake graphite: zircon powder: cashew nut shell oil modified phenolic resin: premix: glass fiber=6:4:13:17:12:3:14:7:9:10:5. Proportional polyacrylonitrile fibers, cashew nut shell oil friction powder, barite powder, heavy calcium carbonate, and powdered nitrile rubber are put into a mixer and stirred and mixed for 5 minutes, then add the mineral fiber and phosphorus flake graphite of the proportioning amount , zircon powder, cashew nut shell oil modified phenolic resin, and the premix were stirred and mixed for 15 minutes, and finally added the glass fiber of the proportioning amount and stirred and mixed for 5 minutes, and released after the mixing was uniform, the mixed mat...

example 3

[0019] According to the various raw materials of the following selected formula, the total amount is 100 kilograms, and its weight ratio is: polyacrylonitrile fiber: cashew nut shell oil friction powder: barite powder: heavy calcium carbonate: powder acrylonitrile-butadiene rubber: mineral fiber: Phosphor flake graphite: zircon powder: cashew nut shell oil modified phenolic resin: premix: glass fiber=7: 6: 16: 13: 11: 6: 14: 3: 11: 4: 9. Proportional polyacrylonitrile fibers, cashew nut shell oil friction powder, barite powder, heavy calcium carbonate, and powdered nitrile rubber are put into a mixer and stirred and mixed for 5 minutes, then add the mineral fiber and phosphorus flake graphite of the proportioning amount , zircon powder, cashew nut shell oil modified phenolic resin, and the premix were stirred and mixed for 15 minutes, and finally added the glass fiber of the proportioning amount and stirred and mixed for 5 minutes, and released after the mixing was uniform, the...

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Abstract

The invention discloses a kind of drum brake staff facing used in cars with none asbestos and none metal and the production technology. The component recipes of drum brake staff facing said above are: polyacrylonitrile fiber 1~10%, the oil of cashew shell friction-type mix 2~10%, barite powder 8~20%, heavy calcium carbonate 5-25%, flour acrylonitrile butadiene rubber 2~15%, the mineral fiber 2~6%, the graphite 3~18%, zircon powder 1~10%, the oil of cashew shell phenol-formaldehyde resin modified 10~15%, premix compound 3~15%, glass fiber 2~15%. The production technology is that make the component told above into three times stir mixing and weigh the amount of last formed material with the need of ordinance about the drum brake facing then chill-pressing confectioning forms cool base and then heat pressing confectioning, heat processing and grind on, drill steps and so on then processing make into production. The recipe production is characterized in that: light weight, stabilize coefficient of friction, soft and sensitive braking, and comfort, noiseless and agree the requirement of environmental protection.

Description

Technical field: [0001] The invention belongs to the technical field of automobile brake systems, and in particular relates to a production formula and a production process of a drum brake lining for automobiles. Background technique: [0002] Brake lining is one of the essential accessories of automobiles and other motor vehicles, and it is related to personal safety. It is mainly composed of three parts: binder, reinforcing material, and friction filler. The reinforcing material used before the 1990s was mainly asbestos, and asbestos would cause environmental pollution and endanger human health. With the new situation of China's entry into WTO and the rapid development of the automobile industry, the procurement of auto parts has also become a global development trend. The amount of brake linings is increasing year by year, and higher requirements are put forward for its performance. In order to connect with the international market, the domestic automobile friction mater...

Claims

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Application Information

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IPC IPC(8): F16D69/02
Inventor 王长达
Owner 福建冠良汽车配件工业有限公司
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