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Method for preparing carbon fiber brake lining

A friction lining and carbon fiber technology, applied in the field of materials, can solve the problems of unreasonable material ratio and poor interface bonding force of carbon fiber, and achieve the effect of excellent braking stability, strong environmental resistance and low density.

Inactive Publication Date: 2011-04-13
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above scheme has improved the performance of the friction lining to a certain extent, but there are still technical problems such as poor interfacial bonding between the carbon fiber surface and the matrix, and unreasonable material ratios of various parts.

Method used

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  • Method for preparing carbon fiber brake lining
  • Method for preparing carbon fiber brake lining

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Embodiment Construction

[0020] like figure 1 Shown, the preparation method of this brake carbon fiber friction lining comprises the following steps:

[0021] A. Carbon fiber pretreatment: put carbon fiber in nitric acid solution, heat for a period of time, take it out and dry it for later use. The carbon fiber is a chopped fiber of 1-5mm or cut from a carbon fiber tow into a chopped fiber with a length of 1-5mm, and the carbon fiber is a PAN-based carbon fiber. The concentration of nitric acid solution is 60-70%. Treat at a temperature of 75-85°C for 6-10 hours.

[0022] B. Preparation of resin solution: mix phenolic resin and ethanol to prepare a resin solution for later use. The ethanol is absolute ethanol, and the weight ratio of the absolute ethanol to the phenolic resin is 1:3 to 1:12.5.

[0023] C. Mix powdery filler: Mix the powdery filler containing copper powder, alumina powder, kaolin powder and talcum powder evenly. Other materials can also be added to the powdered filler as needed, a...

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Abstract

The invention provides a method for preparing a carbon fiber brake lining, which belongs to the technical field of materials and solves the problems of poor interfacial binding force between a carbon fiber surface and a base body, and unreasonable material ratio of each part of the carbon fiber brake lining prepared by the conventional method for preparing the carbon fiber brake lining. The method for preparing the carbon fiber brake lining comprises the following steps of: A, pretreating carbon fibers; B, preparing resin solution; C, mixing powdery fillers; and D, forming. By the method for preparing the carbon fiber brake lining, the carbon fiber brake lining has low density, high braking ability, high environmental tolerance, low braking noise, high abrasion resistance, unchanged or slightly increased friction coefficient along with temperature rise, and high braking stability.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a material for making brake friction linings, in particular to a preparation method of carbon fiber brake friction linings. Background technique [0002] With the development of the automobile industry and the enhancement of people's safety awareness, people pay more and more attention to the braking problem of the vehicle, and the friction lining is a key component in the braking system. There are three main types of friction linings currently used for braking: asbestos-based friction linings, semi-metal-based friction linings and metal-based sintered friction linings. Among them, the asbestos-based friction lining has poor high temperature resistance and wear resistance, and has a short service life. Carcinogenic asbestos dust is generated during the braking process, which seriously affects people's health. However, the metal-based sintered friction lining has high brittlene...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08K7/06C08K9/02C08K3/08C08K3/22C08K3/34C08J5/14C09K3/14F16D69/00
Inventor 程晓君金玉明李俊贤金建伟刘强马芳武李书福杨健赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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