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Multi-fiber hybrid automobile friction material and preparation method thereof

A friction material and multi-fiber technology, applied in the field of automobile friction materials, can solve the problems of low comprehensive performance at high temperature, high preparation cost, poor thermal conductivity, etc., and achieve the effects of improving the stability of friction coefficient, simple preparation method and reducing production cost.

Inactive Publication Date: 2016-05-11
西安艾菲尔德复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a multi-fiber hybrid automobile friction material to solve the problems of poor thermal conductivity, low high-temperature comprehensive performance and high preparation cost of existing automobile friction materials

Method used

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  • Multi-fiber hybrid automobile friction material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1. Soak the carbon fiber in 40% nitric acid for 30 hours, soak the aramid fiber in acetone for 15 hours, wash them with clean water and stir them at a medium speed to make them into wool-like fibers, and dry the fibers at 60°C;

[0034] Step 2, put phenolic resin, cast iron powder, copper powder, graphite, Y-3 filler, barium sulfate and fly ash into the grinder and grind to make 40 purpose powdery raw materials;

[0035] Step 3, among the raw materials obtained in step 1 and step 2, weigh respectively according to weight percentage: aluminum silicate ceramic fiber 6g, carbon fiber 3g, steel fiber 2g, aramid fiber 8g, cast iron powder 4g, copper powder 3g, graphite 4g, barium sulfate 7g, phenolic resin 20g, Y-3 filler 28g, fly ash 15g;

[0036] Step 4, putting the raw materials weighed in step 3 into a high-speed mixer in sequence and mixing;

[0037] Step 5. Carry out hot-press molding treatment on the mixed raw material obtained in step 4. The hot-press pressure ...

Embodiment 2

[0040] Step 1. Soak the carbon fiber with 40% nitric acid for 24 hours, soak the aramid fiber with acetone for 12 hours, rinse with water and stir at a medium speed to make it a wool-like fiber, and dry the fiber at 70°C;

[0041] 2. Put phenolic resin, cast iron powder, copper powder, graphite, Y-3 filler, barium sulfate and fly ash into a grinder for grinding to make 60-mesh powdered raw materials;

[0042] Step 3, among the raw materials obtained in step 1 and step 2, weigh respectively according to weight percentage: aluminum silicate ceramic fiber 10g, carbon fiber 12g, steel fiber 3g, aramid fiber 8g, cast iron powder 2g, copper powder 6g, graphite 2g, barium sulfate 6g, phenolic resin 12g, Y-3 filler 20g, fly ash 19g;

[0043] Step 4, putting the raw materials weighed in step 3 into a high-speed mixer in sequence and mixing;

[0044] Step 5. Carry out hot-press molding treatment on the mixed raw material obtained in step 4. The hot-press pressure is 10 MPa, the temperatu...

Embodiment 3

[0047] Step 1. Soak the carbon fiber with 40% nitric acid for 36 hours, soak the aramid fiber with acetone for 13 hours, rinse with water and stir at a medium speed to make it a wool-like fiber, and dry the fiber at a temperature of 50 ° C;

[0048] Step 2, put phenolic resin, cast iron powder, copper powder, graphite, Y-3 filler, barium sulfate and fly ash into the grinder and grind to make 30 purpose powdery raw materials;

[0049] Step 3, among the raw materials obtained in step 1 and step 2, weigh respectively according to weight percentage: aluminum silicate ceramic fiber 8g, carbon fiber 9g, steel fiber 3g, aramid fiber 8g, cast iron powder 3g, copper powder 6g, graphite 3g, barium sulfate 7g, phenolic resin 15g, Y-3 filler 17g, fly ash 21g;

[0050] Step 4, putting the raw materials weighed in step 3 into a high-speed mixer in sequence and mixing;

[0051] Step 5. Carry out hot-press molding treatment on the mixed raw material obtained in step 4. The hot-press pressure...

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Abstract

The invention discloses a multi-fiber hybrid automobile friction material. The multi-fiber hybrid automobile friction material is prepared from, by weight, alumina-silicate ceramic fibers, carbon fibers, steel fibers, aramid fibers, cast iron powder, copper powder, graphite, barium sulfate, phenolic resin, Y-3 packing and fly ash. The invention further discloses a preparation method of the multi-fiber hybrid automobile friction material. The preparation method comprises the particular steps that firstly, the carbon fibers and the aramid fibers are preprocessed, and a solid material is put into a grinder to be ground; secondly, the needed raw materials are weighed, mixed and then processed through hot press molding; lastly, heat treatment is performed, and then the multi-fiber hybrid automobile friction material is obtained. The ceramic fiber friction material is good in high temperature resistance and friction resistance stability and low in production cost; the preparation method is simple in step, easy to achieve and capable of achieving light weight of the friction material.

Description

technical field [0001] The invention belongs to the technical field of automobile friction materials, and in particular relates to a multi-fiber hybrid automobile friction material, and also relates to a preparation method of the multi-fiber hybrid automobile friction material. Background technique [0002] Automobile friction material is the key material in automobile brakes, clutches and friction transmission devices, and its performance is directly related to the reliability and stability of the system operation. [0003] The development of automobile friction materials has roughly gone through the following three stages: before the mid-1970s, most automobile braking systems were drum brakes, and asbestos friction materials were mostly used; from the mid-1970s to the mid-1980s, the world energy crisis, automobile speed The acceleration of the rapid development of automobile brakes and the confirmation of asbestos hazards have prompted the development of automobile brakes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14C08J5/14
Inventor 齐海港
Owner 西安艾菲尔德复合材料科技有限公司
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