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High-carbon and environment-friendly friction material for automobiles and preparation method of the high-carbon and environment-friendly friction material

A kind of friction material and environment-friendly technology, applied in friction linings, chemical instruments and methods, mechanical equipment, etc. Abnormal disc wear and other problems, to avoid the loss of braking performance, enhance wear resistance, and stabilize braking performance

Inactive Publication Date: 2018-07-20
青岛盛博机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned brake pad formula, although the copper-free organic ceramic brake pad provided does not contain copper and has little environmental pollution, it is easy to wear and has a short service life because of its thermal crack resistance and wear resistance. Disadvantages such as abnormal wear of the brake disc
The Chinese patent with the application number 201410317332.2 discloses a copper-free friction material and its preparation method. The composition of carbon fiber and zinc powder is used to replace the function of copper in the original formula, so as to prevent heavy metal copper from entering the environment with friction dust. Causes pollution and achieves zero content of copper addition, but the heat dissipation and wear resistance of the prepared friction material still need to be improved

Method used

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  • High-carbon and environment-friendly friction material for automobiles and preparation method of the high-carbon and environment-friendly friction material
  • High-carbon and environment-friendly friction material for automobiles and preparation method of the high-carbon and environment-friendly friction material

Examples

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Effect test

Embodiment 1

[0031] A high-carbon environment-friendly friction material for automobiles, comprising the following raw materials in parts by weight:

[0032] 2 parts of aramid fiber, 35 parts of steel wool fiber, 5 parts of zirconium silicate, 13 parts of synthetic graphite, 8 parts of modified resin, 7 parts of zinc powder, 6 parts of molybdenum disulfide, 5 parts of mica, 5 parts of friction powder, tire powder 3 parts, 4 parts of calcium hydroxide, 7 parts of barium sulfate.

[0033] The modified resin is a composite modified phenolic resin, and the specific modification process is: mix phenolic resin, boric acid, tung oil and vermiculite according to the mass ratio of 1:0.3:0.3:0.5, heat to 110°C, and ultrasonically disperse 1.5 h, then cooled to room temperature to obtain a modified resin. The friction powder is cashew nut shell oil friction powder. The length of the aramid fiber is 5 mm.

[0034] A method for preparing a high-carbon environment-friendly friction material for autom...

Embodiment 2

[0051] A high-carbon environment-friendly friction material for automobiles and a preparation method thereof, comprising the following raw materials in parts by weight:

[0052] 2 parts of aramid fiber, 30 parts of steel wool fiber, 5 parts of zirconium silicate, 15 parts of synthetic graphite, 10 parts of modified resin, 8 parts of zinc powder, 5 parts of molybdenum disulfide, 6 parts of mica, 5 parts of friction powder, tire powder 4 parts, calcium hydroxide 6 parts, barium sulfate 8 parts.

[0053] The modified resin is compound modified phenolic resin, and the specific modification process is: mix phenolic resin, boric acid, tung oil and vermiculite according to the mass ratio of 1:0.4:0.2:0.3, heat to 120°C, and ultrasonically disperse 2h, then cooled to room temperature to obtain modified resin. The friction powder is cashew nut shell oil friction powder. The length of the aramid fiber is 5 mm.

[0054] The preparation method is the same as in Example 1.

Embodiment 3

[0056] A high-carbon environment-friendly friction material for automobiles and a preparation method thereof, comprising the following raw materials in parts by weight:

[0057] 2 parts of aramid fiber, 32 parts of steel wool fiber, 5 parts of zirconium silicate, 15 parts of synthetic graphite, 10 parts of modified resin, 8 parts of zinc powder, 5 parts of molybdenum disulfide, 6 parts of mica, 5 parts of friction powder, tire powder 4 parts, calcium hydroxide 6 parts, barium sulfate 8 parts.

[0058] The modified resin is compound modified phenolic resin, and the specific modification process is: mix phenolic resin, boric acid, tung oil and vermiculite according to the mass ratio of 1:0.4:0.2:0.3, heat to 120°C, and ultrasonically disperse 2h, then cooled to room temperature to obtain modified resin. The friction powder is cashew nut shell oil friction powder. The length of the aramid fiber is 5 mm.

[0059] The preparation method is the same as in Example 1.

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Abstract

The invention provides a high-carbon and environment-friendly friction material for automobiles and a preparation method of the high-carbon and environment-friendly friction material, belongs to the field of friction composite material preparation, and relates to a friction material. Composition of steel cotton fiber and zinc powder is used for replacing copper to achieve functions of copper in the original formula, and is synergistic with modified resin, aramid fiber, synthetic graphite, mica and other raw materials, and stability of the friction material is improved, and environment pollution due to heavy metal copper entering the environment along with friction dust is prevented. Defects of replacement of copper with zinc are complemented by addition of the steel cotton fiber, the composition of the steel cotton fiber and the zinc powder plays a role similar to that of copper in the material, and accordingly, by addition of the steel cotton fiber, performance of the high-carbon material is more superior, and braking performance is more stable.

Description

technical field [0001] The invention relates to the field of preparation of composite friction materials, in particular to a high-carbon environment-friendly friction material for automobiles and a preparation method thereof. Background technique [0002] Friction material is a component material that performs braking and transmission functions in power machinery by relying on friction. It is widely used in automobiles, airplanes, trains and various construction machinery and equipment. With the development of vehicles in the direction of environmental protection, high speed and heavy load, people put forward higher requirements for the performance of automobile braking materials. [0003] Traditionally, friction materials such as brakes are manufactured by using a fibrous base material, a friction modifier, and a binder, blending them, and subjecting them to a manufacturing process including steps such as preforming, thermoforming, and finishing. The fiber base material th...

Claims

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Application Information

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IPC IPC(8): C09K3/14C08J5/14F16D69/02
CPCC08J5/00C09K3/14F16D69/028
Inventor 杜元伟
Owner 青岛盛博机电有限公司
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