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Non-asbestos friction material composition, and friction material and friction member using same

一种摩擦材料、组合物的技术，应用在摩擦衬片、制动器的部件、齿轮变速机构等方向，能够解决耐热温度低、摩擦材料耐磨性恶化、对置构件攻击性高等问题，达到环境污染少、优异摩擦系数的效果

Active Publication Date: 2013-06-19
RESONAC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] On the other hand, iron-based fibers such as steel fibers and cast iron fibers are used as metal fibers other than copper contained in the friction material for the purpose of improving crack resistance, but iron-based fibers have high aggressiveness against opposing members. Compared with copper and iron-based fibers, non-ferrous metal fibers usually used in friction materials such as zinc fibers and aluminum fibers have lower heat resistance temperatures in most cases, which may deteriorate the wear resistance of friction materials. such problem

Method used

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  • Non-asbestos friction material composition, and friction material and friction member using same
  • Non-asbestos friction material composition, and friction material and friction member using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6 and comparative example 1～6

[0094] Manufacture of Disc Brake Friction Block

[0095] Materials were compounded according to the compounding ratio shown in Table 1 to obtain the friction material compositions of Examples and Comparative Examples. The friction material composition was mixed with a Lodige mixer (manufactured by Matsubo Co., Ltd., trade name: Lodige mixer M20), and the mixture was preformed with a molding press (manufactured by Oji Machinery Co., Ltd.). A molding press (manufactured by Sanki Seiko Co., Ltd.) was used for heating and press molding for 5 minutes at a molding temperature of 145° C. and a molding pressure of 30 MPa together with an inner liner manufactured by Hitachi Automotive Systems Co., Ltd. The obtained molded product was heat-treated at 200°C for 4.5 hours, ground with a rotary grinder, and coked at 500°C to obtain a disc brake friction block (the thickness of the friction material was 11mm, and the projected area of ​​the friction material was 52cm 2 ).

[0096] Table 1...

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Abstract

Provided is a non-asbestos friction material composition containing a bonding material, an organic filler, an inorganic filler, and a fibrous substrate, said friction material composition being characterised by the content of copper in the friction material composition being at most 0.5 mass% as elemental copper, the content of metal fibres other than copper and copper alloys being at most 0.5 mass%, the content of cashew dust being 3.5-10.0 mass%, and containing wollastonite and mica. Even if the content of environmental pollutants such as copper and copper fibres is low, the non-asbestos friction material composition can provide a friction material exhibiting an excellent friction coefficient, crack resistance, and wear resistance. Further provided are a friction material and friction member using the non-asbestos friction material composition.

Description

technical field [0001] The present invention relates to a non-asbestos friction material composition, a friction material and a friction member using the non-asbestos friction material composition. Specifically, it relates to a non-asbestos friction material composition suitable for disc brakes for braking automobiles and the like, and a friction material and a friction member using the non-asbestos friction material composition Friction materials such as disc brake pads and brake linings have low copper content, so they can prevent environmental pollution, and have excellent friction coefficient, crack resistance, and wear resistance. Background technique [0002] For automobiles and the like, friction materials such as disc brake pads and brake linings are used for braking thereof. The friction material achieves the braking effect by rubbing against opposing components such as disc rotors and brake drums. Therefore, for the friction material, not only a high coefficient ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
CPCF16D69/026F16D2200/0086C09K3/14F16D69/02F16D65/092F16D69/028
Inventor 海野光朗马场一也菊留高史
Owner RESONAC CORP