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Iron powder and steel fiber free ceramic friction material

A friction material and steel fiber technology, applied in the field of ceramic friction materials, can solve the problems of poor high temperature resistance, sensitive to temperature changes, loud metal clamor, etc., to achieve low temperature sensitivity, stable friction coefficient, and friction performance. stable effect

Inactive Publication Date: 2012-02-29
湖南常德嘉达摩擦材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The friction materials of existing brake pads are usually semi-metallic or low-metal mixed friction materials, which are prone to brake noise, more dust and damage to the brake disc during use.
The friction between the traditional metal brake block and the counterpart (that is, the brake block and the brake disc) produces a loud metal clamor, and it is also easy to cause the brake block and the brake disc to rust and stick, and the high temperature resistance is also relatively low. Poor, sensitive to temperature changes, the friction performance of the brake pads is unstable, especially easy to be charged with static electricity, so that the friction powder is not taken away by the wind with the movement of the vehicle, but adheres to the wheel hub, affecting the appearance of the vehicle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Embodiment 1: The designed ceramic friction material without iron powder and steel fiber is composed of the following components by weight percentage: binder: 5%, reinforcing material 35%, friction increasing agent 30%, friction reducing agent 10%, Filler 10%, Mixture: 10%. The binder is nitrile modified phenolic resin; the reinforcing material is one or more combinations of aramid fiber, copper fiber, mineral fiber, ceramic fiber, calcium carbonate whisker; the friction agent is copper powder, friction Powder, nitrile rubber, tire powder, aluminum oxide, chromite powder, magnesium oxide or one or more combinations; friction reducer is one or more combinations of graphite, molybdenum disulfide, coke; filler is One or more combinations of barium sulfate and vermiculite; the mixture is one or more combinations of diatomite, activated carbon, and antimony trisulfide.

[0007] According to the above formula, the product is processed according to the production process of "...

Embodiment 2

[0008] Embodiment 2: The designed ceramic friction material without iron powder and steel fiber is composed of the following components by weight percentage: binder: 15%, reinforcing material 15%, grinding agent 15%, wear reducing agent 15%, Filler 20%, Mixture: 20%. The binder is nitrile modified phenolic resin; the reinforcing material is one or more combinations of aramid fiber, copper fiber, mineral fiber, ceramic fiber, calcium carbonate whisker; the friction agent is copper powder, friction Powder, nitrile rubber, tire powder, aluminum oxide, chromite powder, magnesium oxide or one or more combinations; friction reducer is one or more combinations of graphite, molybdenum disulfide, coke; filler is One or more combinations of barium sulfate and vermiculite; the mixture is one or more combinations of diatomite, activated carbon, and antimony trisulfide. According to the above formula, the product is processed according to the production process of "mixing materials - hot ...

Embodiment 3

[0009] Embodiment 3: The designed ceramic friction material without iron powder and steel fiber is composed of the following components by weight percentage: binder: 10%, reinforcing material 30%, grinding agent 25%, wear reducing agent 5%, Filler 15%, Mixture: 15%. The binder is nitrile modified phenolic resin; the reinforcing material is one or more combinations of aramid fiber, copper fiber, mineral fiber, ceramic fiber, calcium carbonate whisker; the friction agent is copper powder, friction Powder, nitrile rubber, tire powder, aluminum oxide, chromite powder, magnesium oxide or one or more combinations; friction reducer is one or more combinations of graphite, molybdenum disulfide, coke; filler is One or more combinations of barium sulfate and vermiculite; the mixture is one or more combinations of diatomite, activated carbon, and antimony trisulfide. According to the above formula, the product is processed according to the production process of "mixing materials - hot p...

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PUM

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Abstract

The invention discloses an iron powder and steel fiber free ceramic friction material. The invention is characterized in that the ceramic friction material comprises the following components in percentage by weight: 5 to 15 percent of adhesive, 15 to 35 percent of reinforcing material, 15 to 30 percent of friction agent, 5 to 15 percent of friction reducer, 10 to 25 percent of filler and 10 to 20 percent of other mixture. Because the ceramic friction material does not contain metals, a brake block made of the ceramic friction material comprises a brake block and a braking disc instead of the conventional metal brake block and mating plate, avoids metal sound caused by friction, and eliminates the adhesion between the brake block and the braking disc. As the ceramic material is more capable of resisting high temperature than a metal material and has a small temperature sensitivity, the friction factor of the brake block produced by using the ceramic friction material is stable, free from corrosion to hub and braking noises and environment-friendly, has less dust and long service life. The ceramic friction material is suitable for manufacturing brake blocks for high-speed automobiles and heavy load automobiles.

Description

technical field [0001] The invention relates to a friction material, specifically a ceramic friction material without iron powder and steel fiber. Background technique [0002] The friction materials of existing brake pads are usually semi-metallic or low-metal mixed friction materials, which are prone to brake noise, more dust and damage to the brake disc during use. The friction between the traditional metal brake block and the counterpart (that is, the brake block and the brake disc) produces a loud metal clamor, and it is also easy to cause the brake block and the brake disc to rust and stick, and the high temperature resistance is also relatively low. Poor, sensitive to temperature changes, the friction performance of the brake pad is unstable, especially easy to be charged with static electricity, so that the friction powder is not taken away by the wind with the movement of the vehicle, but adheres to the wheel hub, affecting the appearance of the vehicle. Contents ...

Claims

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Application Information

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IPC IPC(8): C09K3/14C04B26/12
Inventor 曾新堂祝珍明李柏江田俊强
Owner 湖南常德嘉达摩擦材料有限公司
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