Dedicated friction material for car brake pad

A technology of friction materials and brake pads, which is applied in the field of special friction materials for car brake pads, can solve the problems of brake pad performance degradation, poor braking performance, poor wear resistance, etc., and achieve reduced friction coefficient, stable friction coefficient, and durability Good grinding performance

Inactive Publication Date: 2016-10-26
WUHU DONGZHENG AUTOMOTIVE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two main types of friction blocks for cars on the market, one is imported original products, which have good wear resistance and braking performance, but the price is high; the other is domestic products, although its price is low, but However, the wear resistance is poor, the life is short, and the braking performance is not good, which leads to a significant decline in the performance of the brake pads.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A special friction material for car brake pads proposed by the present invention, its raw materials include by weight: 30 parts of phenolic resin, 2 parts of toughening agent, 15 parts of mixed fiber, 30 parts of potassium titanate, 25 parts of nano silicon dioxide, aluminum 3 parts of powder, 80 parts of barium sulfate, 3 parts of graphite, 15 parts of silicon nitride, 10 parts of silicon micropowder, 15 parts of talcum powder, 3 parts of mica powder, 20 parts of calcium silicate, 5 parts of polytetrafluoroethylene, molybdenum disulfide 1 part, foam carbon 2 parts, micron zirconia ball 0.5 part.

Embodiment 2

[0019] A special friction material for car brake pads proposed by the present invention, its raw materials include by weight: 20 parts of phenolic resin, 5 parts of toughening agent, 5 parts of mixed fiber, 50 parts of potassium titanate, 15 parts of nano silicon dioxide, aluminum 10 parts of powder, 50 parts of barium sulfate, 10 parts of graphite, 9 parts of silicon nitride, 15 parts of silicon micropowder, 10 parts of talcum powder, 12 parts of mica powder, 10 parts of calcium silicate, 2 parts of polytetrafluoroethylene, molybdenum disulfide 5 parts, 0.5 parts of foam carbon, 3 parts of micron zirconia balls.

Embodiment 3

[0021] A special friction material for car brake pads proposed by the present invention, its raw materials include by weight: 27 parts of barium phenolic resin, 2 parts of hydroxyl silicone oil, 1 part of polyvinyl butyral, 12 parts of mixed fiber, and 39 parts of potassium titanate , 21 parts of nano silicon dioxide, 5.8 parts of aluminum powder, 67 parts of barium sulfate, 6 parts of graphite, 13 parts of silicon nitride, 12 parts of silicon micropowder, 14 parts of talc powder, 7 parts of mica powder, 16 parts of calcium silicate, poly 3.8 parts of tetrafluoroethylene, 2 parts of molybdenum disulfide, 1.4 parts of foam carbon, 1.5 parts of micron zirconia balls;

[0022] Wherein, the mixed fiber is a mixture of bamboo charcoal fiber, sepiolite fiber and carbon fiber in a weight ratio of 5:1:10;

[0023] The average particle diameter of described nano silicon dioxide is 35nm;

[0024] The average particle diameter of the micron zirconia balls is 8 μm.

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Abstract

The invention discloses a dedicated friction material for a car brake pad. The dedicated friction material comprises the following raw materials in part by weight: 20-30 parts of phenolic resin, 2-5 parts of a flexibilizer, 5-15 parts of blend fiber, 30-50 parts of potassium titanate, 15-25 parts of nano silica, 3-10 parts of aluminite powder, 50-80 parts of barium sulfate, 3-10 parts of graphite, 9-15 parts of silicon nitride, 10-15 parts of silica micropowder, 10-15 parts of talcum powder, 3-12 parts of mica powder, 10-20 parts of calcium silicate, 2-5 parts of polytetrafluoroethylene, 1-5 parts of molybdenum disulfide, 0.5-2 parts of foam carbon, and 0.5-3 parts of micron zirconia. The dedicated friction material is high in heat resistance, wear resistance and shock resistance, is used for the car brake pad, and is high in performance, reasonable in price, and long in service life.

Description

technical field [0001] The invention relates to the technical field of friction materials, in particular to a special friction material for car brake pads. Background technique [0002] Brake pads are the key components of car braking, which are generally composed of steel plates, bonded heat insulation layers and friction blocks. Among them, the comprehensive performance of the friction block will be directly related to the reliability and stability of the car operation. At present, there are two main types of friction blocks for cars on the market, one is imported original products, which have good wear resistance and braking performance, but the price is high; the other is domestic products, although its price is low, but However, the wear resistance is poor, the life is short, and the braking performance is not good, which leads to a significant decline in the performance of the brake pad. Contents of the invention [0003] Based on the technical problems in the back...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14
CPCF16D69/023C09K3/149F16D2200/006F16D2200/0086
Inventor 杨国军
Owner WUHU DONGZHENG AUTOMOTIVE IND
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