Method for preparing brake pad by utilizing ceramic fiber

A technology of ceramic fibers and brake pads, used in mechanical equipment, friction linings, etc., can solve the problems of limited heat resistance, inability to meet use requirements, and brittleness of phenolic resins.

Inactive Publication Date: 2012-07-18
东营宝丰汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unmodified phenolic resin in the current friction materials has high brittleness, poor toughness, and limited heat resistance, which cannot meet the requirements of modern friction materials.

Method used

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  • Method for preparing brake pad by utilizing ceramic fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0004] Embodiment 1, the formula of the method for preparing brake pads using ceramic fibers is an adhesive, a reinforcing material, a friction performance regulator and a filler, the adhesive is a composite modified phenolic resin, and the weight percentage of the adhesive is 5%; the reinforcing material is ceramic fiber and aramid fiber, and the weight percentage of the reinforcing material is 20%; the friction modifier includes abrasive and graphite, molybdenum disulfide, mica, and the abrasive Including aluminum oxide, iron oxide, magnesium oxide, the weight percentage of the abrasive is 1%, and the total weight percentage of the graphite, molybdenum disulfide and mica is 5%; the filler is barium sulfate, titanic acid Potassium and vermiculite powder, the weight percentage of the filler is 10%.

Embodiment 2

[0005] Embodiment 2, the formula of the method for preparing brake pads using ceramic fibers is an adhesive, a reinforcing material, a friction performance regulator and a filler, and the adhesive is a composite modified phenolic resin, and the weight percentage of the adhesive is 18%; the reinforcing material is ceramic fiber and aramid fiber, and the weight percentage of the reinforcing material is 30%; the friction modifier includes abrasive and graphite, molybdenum disulfide, mica, and the abrasive Including aluminum oxide, iron oxide, magnesium oxide, the weight percentage of the abrasive is 15%, and the total weight percentage of the graphite, molybdenum disulfide and mica is 15%; the filler is barium sulfate, titanic acid Potassium and vermiculite powder, the weight percentage of the filler is 30%.

Embodiment 3

[0006] Embodiment 3, the formula of the method for preparing brake pads using ceramic fibers is an adhesive, a reinforcing material, a friction performance modifier and a filler, and the adhesive is a composite modified phenolic resin, and the weight percentage of the adhesive is 11%; the reinforcing material is ceramic fiber and aramid fiber, and the weight percentage of the reinforcing material is 25%; the friction modifier includes abrasive and graphite, molybdenum disulfide, mica, and the abrasive Including aluminum oxide, iron oxide, magnesium oxide, the weight percentage of the abrasive is 8%, and the total weight percentage of the graphite, molybdenum disulfide and mica is 10%; the filler is barium sulfate, titanic acid Potassium, vermiculite powder, the weight percent of described filler is 20%.

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Abstract

The invention relates to a preparation method of a friction material in the field of automobile industry and provides a formula for preparing a brake pad, which can improve heat resistance and fading resistance of the friction material. The formula comprises an adhesive, a reinforcing material, a friction performance regulating agent and a filling material, wherein the adhesive is of compound modified phenolic resin, and the percentage by weight of the adhesive is 5-18%; the reinforcing material is of the ceramic fiber and aramid fiber, and the percentage by weight of the reinforcing material is 20-30%; the friction performance regulating agent comprises a grinding agent, graphite, molybdenum disulfide and mica, the grinding agent comprises aluminum oxide, ferric oxide and magnesium oxide, the percentage by weight of the grinding agent is 1-15%, and the graphite, the molybdenum disulfide and the mica account for 5-15% by weight in total; and the filling material comprises barium sulfate, potassium titanate and vermiculite powder. The brake pad produced by adopting the formula disclosed by the invention, heat fading phenomenon can be avoided at high temperature, the friction coefficient is stable, the abrasion of a product is small, the brake is comfortable during the using process, the noise can be avoided, and the service life can be up to above 70000km.

Description

technical field [0001] A method for preparing friction materials in the field of automobile industry, especially a method for preparing brake pads by using ceramic fibers. Background technique [0002] The friction material is bonded with ceramic fiber and other components to form a friction material product with various properties required for friction braking. Ceramic fibers play a very important role in the performance of the entire material. With the development of high-speed and heavy-duty transportation machinery, higher requirements are put forward for high-performance friction materials, such as good decay resistance, thermal recovery, stable friction coefficient, small wear and low noise, etc. . However, the unmodified phenolic resin in current friction materials has high brittleness, poor toughness, and limited heat resistance, which cannot meet the requirements of modern friction materials. Contents of the invention [0003] The purpose of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14C08L61/14C08L77/00C08K13/04C08K3/34C08K3/04C08K3/30C08K3/22C08K3/24F16D69/02
Inventor 田式国
Owner 东营宝丰汽车配件有限公司
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