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Heat recession-resistant friction material and preparation method thereof

A friction material, anti-thermal recession technology, applied in friction linings, chemical instruments and methods, mechanical equipment, etc., can solve problems such as insufficient braking force, decrease in friction torque, affecting high-temperature braking stability, etc., to ensure stability , the effect of increasing the coefficient of friction and improving the thermal decay performance

Inactive Publication Date: 2016-06-29
HENGYANG ANPIN AUTOMOBILE FITTINGS
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AI Technical Summary

Problems solved by technology

[0003] The existing friction pads all have the phenomenon of thermal decay, which is often referred to as brake heat decay. It is because the brake pads work under high load conditions for a long time or in the case of continuous braking, the temperature of the friction pads rises rapidly. Caused by a significant drop in friction torque, manifested as insufficient braking force resulting in longer braking distance, which affects the stability of high-temperature braking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A heat decay resistant friction material, in the form of particles, with a particle size of 8-40 mesh. The components contained and the parts by weight of each component are as follows: 25 parts of Nakaif fiber; 20 parts of cryolite; 35 parts of magnetite powder; 6 parts of antimony sulfide;

[0020] Compared with Example 1, Example 2-Example 14 differ only in the components contained and the parts by weight of each component. See Table 1 for details.

[0021] Table I:

[0022]

[0023] For the convenience of effect comparison, each of the above 14 embodiments has only one variable relative to the previous embodiment.

[0024] The characteristics and effects of each component in the above-mentioned embodiment are described as follows:

[0025] Nakaeff fiber is a non-asbestos composite fiber, which is a skeleton material for carrying other raw materials, which can enhance the high temperature resistance and friction and wear performance of the material.

[0...

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Abstract

The invention relates to a heat recession-resistant friction material. The heat recession-resistant friction material comprises the following components in parts by weight: 25-35 parts of NACF fiber, 15-20 parts of cryolite, 30-35 parts of magnetite powder, 3-6 parts of antimony sulfide, and 8-15 parts of an adhesive. A preparation method comprises the followings steps: S01, burdening the components in parts by weight; S02, uniformly mixing the components, placing the mixed components in melting equipment for melting the components and plasticizing the components; and S03, placing the plasticized components for crushing the components to obtain the granular product. The heat recession-resistant friction material is doped into a friction plate according to a certain proportion, so that the heat recession performance of the friction plate can be improved, friction coefficient of the friction plate at high temperature can be increased, and high temperature braking stability of the automobile can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of a friction material and its preparation, in particular to a heat decay-resistant friction material mixed into a friction pad of an automobile brake pad and a preparation method thereof. Background technique [0002] Brake pads are the most critical safety parts in the car braking system, and play a decisive role in the car's braking performance. Brake pads are generally composed of steel plates, adhesive insulation layers and friction plates. When braking, the friction plates are squeezed on the brake disc to generate friction, so as to achieve the purpose of vehicle deceleration and braking. [0003] The existing friction pads all have the phenomenon of thermal decay, which is often referred to as brake heat decay. It is because the brake pads work under high load conditions for a long time or in the case of continuous braking, the temperature of the friction pads rises rapidly. It is caused by a signif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
Inventor 于海泉郑辉林凌
Owner HENGYANG ANPIN AUTOMOBILE FITTINGS
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