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Car brake friction lining and preparation method thereof

A friction lining and brake technology, applied in the field of automobile brake friction lining and its preparation, can solve the problems of braking noise, easy rust, easy damage to duality, etc., achieve stable friction performance and recovery performance, and simple production process , the effect of ensuring success

Active Publication Date: 2012-10-31
湖北九霄汽车零部件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Steel fibers conduct heat, have certain strength and wear resistance, but are dense, easy to rust, hard in quality, easy to damage the pair, and easy to generate braking noise
Due to the problem of formula, the material of domestic automobile brake friction plate is not wear-resistant enough

Method used

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  • Car brake friction lining and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment scheme of brake friction lining for automobile, its preparation method is as follows figure 1 Shown:

[0037] 1) The raw materials are weighed and proportioned: 20% binder; 20% reinforcing fiber; 10% friction agent; 20% lubricant and 30% filler, wherein the binder includes phenolic resin, which reinforces The fiber is a combination of composite mineral fiber, glass fiber and steel fiber, the friction agent is alumina powder or friction powder, the lubricant is calcined petroleum coke and carbon black, the filler is barium sulfate and expanded vermiculite; all raw materials have been pulverized into Set granularity.

[0038] 2) Compression molding: Put all the above-mentioned raw materials in a high-speed mixer and mix them evenly, and then place them in a specified mold for heating and molding. The heating temperature is 140°C, the pressing pressure is 24MPa, and the heating and pressing is 120S;

[0039] 3) Heat treatment: remove the burrs from the formed ...

Embodiment 2

[0049] Preparation methods such as figure 1 Shown:

[0050] 1) The raw materials are weighed and proportioned: 10% binder; 40% reinforcing fiber; 20% friction enhancer; 10% lubricant and 20% filler, wherein the binder includes phenolic resin, reinforcing The fiber is a combination of composite mineral fiber and glass fiber, the friction agent is alumina powder or friction powder, the lubricant is graphite and calcined petroleum coke, the filler is nitrile rubber, tire powder and barium sulfate; all raw materials have been crushed into Set granularity.

[0051] 2) Compression molding: Put all the above-mentioned raw materials in a high-speed mixer and mix them evenly, and then place them in a specified mold for heating and molding. The heating temperature is 180°C, the pressing pressure is 18MPa, and the heating and pressing is 180S;

[0052] 3) Heat treatment: remove the burrs from the formed friction lining and place it in an oven for 16 hours at a temperature of 180°C;

...

Embodiment 3

[0056] Preparation methods such as figure 1 Shown:

[0057] 1) Weighing raw materials and proportioning: 13% binder; 31% reinforcing fiber; 12% friction agent; 13% lubricant and 31% filler, wherein the binder includes phenolic resin, reinforcing The fiber is composite mineral fiber, ceramic fiber, glass fiber, organic fiber and steel fiber, and their weight ratio is 20:6:6:5:3, and the friction agent is a composition of aluminum oxide powder and friction powder, aluminum oxide The weight ratio of powder and friction powder is 1:2, the lubricant is a composition of graphite, calcined petroleum coke and carbon black, and the weight ratio of graphite, calcined petroleum coke and carbon black is 3:2:1; the filler is nitrile rubber , the composition of tire powder, barium sulfate and expanded vermiculite, the weight ratio of nitrile rubber, tire powder, barium sulfate and expanded vermiculite is 5:5:18:3. All raw materials have been crushed to a set particle size.

[0058] 2) Co...

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Abstract

The invention discloses a car brake friction lining and a preparation method thereof. The car brake friction lining comprises the following raw materials in percentage by weight: 10-20% of binder, 20-40% reinforced fiber, 10-20% friction increasing agent, 10-20% lubricant and 20-40% filler. The preparation method comprises the steps of: 1) mixing the raw materials, placing the mixture in a high-speed material mixer and evenly stirring; 2) placing the evenly mixed materials into a die for heating and moulding; 3) conducting heat preservation on moulded friction lining for 16-20 hours at 140-180 DEG C; and 4) conducting milling and drilling machining on the outer cambered surface, the inner cambered surface and the end surfaces of the heat-preserved moulded friction lining into a finished product. The raw material formula of the friction lining can ensure the stable friction property and reset property of the friction lining, the production process is simple, and the operation is convenient. Furthermore, through multiple tests, the mould pressing temperature and mould pressing pressure in optimal range can be obtained, thus ensuring the success rate of a mould pressing forming process.

Description

technical field [0001] The invention belongs to the technical field of automobile friction materials, and in particular relates to an automobile brake friction lining and a preparation method thereof. Background technique [0002] Automobile brake friction linings are the key products for the safe driving of automobiles. Brake linings for vehicles at home and abroad are made of semi-metallic materials, characterized by steel fibers. Steel fiber conducts heat, has certain strength and wear resistance, but is dense, easy to rust, hard in quality, easy to damage the pair, and easy to generate braking noise. Due to the problem of formula, the materials of brake pads for domestic automobiles are not wear-resistant enough. Contents of the invention [0003] The purpose of the present invention is to make up for the defects of the prior art, and provide a brake friction lining for automobiles and a preparation method thereof. The brake friction lining has stable friction perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14C08L61/06C08K13/04B29C51/00B29C51/46
Inventor 张辉华黄卫东曹钟华
Owner 湖北九霄汽车零部件股份有限公司
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