Safe friction material with low noise and preparation method of friction plate

A friction material and safe technology, applied in the direction of friction linings, chemical instruments and methods, mechanical equipment, etc., to achieve the effect of stable friction coefficient, ensuring safety, and low friction coefficient

Inactive Publication Date: 2015-04-08
ZHUHAI HUALI FRICTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a friction material with high friction coefficient and safety performance, and take into account the problem of noise performance, and a method for preparing friction plates using this material

Method used

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  • Safe friction material with low noise and preparation method of friction plate
  • Safe friction material with low noise and preparation method of friction plate
  • Safe friction material with low noise and preparation method of friction plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The friction material includes the following components by percentage: resin 10%, coke powder 6.8%, nitrile powder 0.5%, tire powder 1.0%, corundum 1.5%, graphite 9.1%, iron black 2.5%, chromite powder 4.3%, friction powder 2.3%, fiber 22.15%, filler 39.85%. The fibers are formed by mixing metal fibers and organic fibers, and the content of the metal fibers is 21.3% by weight, and the content of the organic fibers is 0.85%. The filler includes 30.0% barite, 6.0% cryolite, 0.85% calcium oxide, and 3.0% sulfide, with a total content of 39.85%. The resin is phenolic resin or linear resin, and the nitrile powder is nitrile rubber powder or styrene-butadiene rubber powder.

[0025] Weigh each raw material according to the above weight ratio, adopt the dry preforming process, and proceed in the following five steps:

[0026] (1) Mixing: Weigh all the raw materials by weight percentage, put all the materials into a high-speed mixer, and stir for 4 minutes to make a friction ...

Embodiment 2

[0032] The friction material includes the following components in terms of percentages: resin 8.0%, coke powder 6.8%, nitrile powder 1.0%, tire powder 1.2%, corundum 1.5%, graphite 10.5%, iron black 2.5%, chromite powder 4.3%, activated carbon 1.5%, friction powder 2.3%, fiber 22.15%, filler 38.25%. The fibers are formed by mixing metal fibers and organic fibers, and the content of the metal fibers is 21.3% by weight, and the content of the organic fibers is 0.85%. The filler includes 28.4% barite, 6.0% cryolite, 0.85% calcium oxide and 3.0% sulfide.

[0033] Various raw materials were weighed according to the above weight ratios, and prepared with the same process steps as described in Example 1.

Embodiment 3

[0035] The friction material includes the following components in terms of percentages: 4.7% resin, 6.8% coke powder, 1.7% nitrile powder, 4.3% tire powder, 1.7% corundum, 12.8% graphite, 1.7% iron black, chromite powder 4.3%, activated carbon 3.0%, friction powder 4.3%, fiber 22.15%, filler 32.55%. The fibers are formed by mixing metal fibers and organic fibers, and the content of the metal fibers is 21.3% by weight, and the content of the organic fibers is 0.85%. In this embodiment, the activated carbon and the friction powder are added as a component of the filler, and the filler also includes 22.98% of barite, 6.0% of cryolite, 0.85% of calcium oxide, sulfide 3.0%.

[0036] Various raw materials were weighed according to the above weight ratios, and prepared with the same process steps as described in Example 1.

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Abstract

The invention aims at providing a friction material with high friction coefficient and safety performance and low noise and a preparation method of a friction plate. The friction material comprises the following components in percentage by weight: 4-10% of resin, 6-10% of coke powder, 0.5-5% of nitrile powder, 1-8% of tire powder, 1-4% of corundum, 9-20% of graphite, 1-3% of iron black, 4-5% of chromite powder, 1-3% of active carbon, 2-5% of friction powder, 20-30% of fiber and 30-55% of filler; and the preparation method of the friction plate prepared from the friction material comprises the following steps of (1) material blending, namely preparing a blended material of the friction material; (2) pre-pressing, namely pre-molding the blended material; (3) hot pressing, namely placing a pressed blank into a mould to carry out hot pressing, and then, carrying out exhaust gas disposal at intervals; (4) thermal treatment, namely heating from the room temperature to the temperature of 185 DEG C in stages at constant speed, and preserving the heat; and (5) size processing. The friction material is applied to the field of friction materials.

Description

technical field [0001] The invention relates to a friction material, in particular to a low-noise safe friction material for an automobile brake disc and a preparation method of a friction plate. Background technique [0002] With the progress of the times, people's living standards continue to improve, and the pursuit has increased from the initial satisfaction with food and clothing to the pursuit of material, and then the minimum requirements for all aspects have been raised to a higher level. Now the streets are full of cars. While people are dissatisfied with the "city blockage" caused by cars, they are also paying more and more attention to the pollution it brings, among which noise pollution is one of the top environmental problems. Part of the noise pollution is caused by the braking process of automobiles. As a manufacturer of friction materials, it is obliged to fulfill its social responsibility to reduce such pollution. [0003] To achieve low-noise braking, red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
Inventor 蔡海鹏李康曾文天易汉辉
Owner ZHUHAI HUALI FRICTION MATERIAL
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