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Preparation method for high temperature-resistant automobile brake lining

A technology for automobile braking and high temperature resistance, applied in the field of composite friction materials, can solve problems such as unsatisfactory high temperature resistance effect, and achieve the effects of good thermal recession resistance, low wear rate, and improved high temperature mechanical properties

Inactive Publication Date: 2012-03-28
YANCHENG INST OF TECH
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  • Claims
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Problems solved by technology

In addition, there are reports of boron, benzoxazine, silicone, and polyimide modified phenolic resins, but phenolic resins are organic substances, and the high temperature resistance effect is still unsatisfactory.

Method used

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  • Preparation method for high temperature-resistant automobile brake lining

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[0022] The invention provides a method for preparing a high-temperature-resistant automobile brake lining, which consists of organic binder: phenolic resin, reinforcement: inorganic fiber and cellulose fiber, friction performance regulator: graphite, molybdenum disulfide, aluminum oxide, Self-made phase change material and several other fillers: fly ash, wollastonite powder and barite, the sum of the percentages of each component of the friction material is 100%.

[0023] A preparation method of a high temperature resistant brake lining provided by the invention comprises the following steps:

[0024] 1. Preparation of phase change materials. The magnesium oxide and aluminum oxide are mixed in a molar ratio of 1:1, and the phase change material is NaNO 3 -NaCl-Na 2 CO 3 According to a certain mass ratio (where the lowest eutectic point occurs), the mass ratio of the phase change material to the ceramic matrix is ​​4:6. After mixing all kinds of raw materials evenly, they w...

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Abstract

The invention provides a preparation method for a high temperature-resistant automobile brake lining. Eutectic salt / magnesia-alumina spinel phase-change materials are prepared by high-temperature sintering, and are mixed with organic binder, reinforcements, friction performance regulators and other fillers to prepare friction materials, the organic binder is phenolic resin, the reinforcements are inorganic fibers and cellulose fibers, the friction performance regulators are graphite, molybdenum disulfide and alumina, and the fillers are pulverized coal, wollastonite powder and barite. The preparation process flow is as follows: material preprocessing, batching, mixing, prepressing, hot embossing, heat treatment, machining and finished product. The high temperature-resistant automobile brake lining has the advantages of stable friction coefficient, good heat fading resistance and low wear rate, and moreover, the materials are cheap, so that the production cost can be greatly reduced.

Description

technical field [0001] The invention relates to a method for preparing a high-temperature-resistant automobile brake lining, which belongs to the technical field of composite friction materials. Background technique [0002] With the advancement of automobile technology, the speed of automobiles is getting faster and faster, and the brakes are getting smaller and smaller, which puts forward higher requirements on the performance of friction materials, and the conditions of use are more stringent. Automobile friction material is the key material in automobile brakes, clutches and friction transmission devices, which converts the kinetic energy of automobile motion into heat energy and other forms of energy, thereby braking the automobile. Therefore, its performance is directly related to the reliability and stability of the system operation. With the development of the modern automobile industry, the requirements for the performance of friction materials are getting higher a...

Claims

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Application Information

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IPC IPC(8): C09K3/14C09K5/06
Inventor 吴其胜韩俊华黎水平
Owner YANCHENG INST OF TECH
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