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A technology of friction materials and brake pads, which is applied in the field of automobile brake pads, can solve problems such as unfavorable factors, non-environmental protection, and damage to even parts, and achieve the effects of good resistance to high temperature thermal decay, low cost, and small damage
Inactive Publication Date: 2008-04-09
XUZHOU COLLEGE OF INDAL TECH
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Problems solved by technology
[0002] Traditional asbestos-based, semi-metallic, low-metal non-asbestos brake pads have problems such as low friction coefficient, not environmentally friendly, easy to generate noise during braking, and serious damage to the mating parts.
The more advanced non-asbestos formula has made considerable improvements in some aspects, but there are also disadvantages in terms of high temperature friction performance stability, service life, raw material costs, production costs, etc.
Method used
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Embodiment 1
[0011] 8 parts of modified phenolic resin, 8 parts of barium sulfate, 20 parts of steel wool, 6 parts of friction powder, 8 parts of tire powder, 4 parts of graphite, 6 parts of coke powder, 5 parts of potassium feldspar, 2 parts of light calcium carbonate, vulcanized 2 parts of antimony, 4 parts of natural fiber, 2 parts of rigid fiber, 6 parts of sepiolite, 6 parts of iron powder, 2 parts of zircon, 5 parts of vermiculite, 1 part of nitrile, 2 parts of carbon black, 3 parts of copper fiber .
[0012] The above materials are made into brake pads according to the conventional method, and the performance parameters are repeatedly measured on the constant friction testing machine, and the loading test is carried out. After testing, the main physical parameters are: specified friction coefficient: 0.4, Rockwell hardness 60. Its performance parameters are in line with GB5763-1998.
[0013] Products made with this formula have been used in disc brake pads in the front brake system...
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Abstract
The invention discloses a brake shoe friction material, belonging to brake shoe material. Based on the traditional half-metal formula, the invention is pressed according to the production method of general brake shoe with the weight proportions of 5%-10% of the modified colophony, 5%-15% of the barium sulfate, 15%-20% of the steel wool, 5%-10% of the friction powder, 8% of the tyre powder, 4%-10% of the graphite, 5%-10% of the coke powder, 5%-10% of the potash feldspar, 2% of the light calcium carbonate, 2% of the antimony sulfide, 4% of the natural fiber, 2% of the rigid fiber, 5%-15% of the meerschaum, 6% of the iron powder, 2% of the zircon, 5%-10% of the vermiculite, 1% of the nitrile, 2% of the carbon, and 3% of the copper fiber. The invention has the advantages of good high-temperature and hot recession resistance, selecting the colophony with high temperature resistance as the bonder, hardly damaging the dual parts, selecting the friction material and metallurgy material with small hardness, and cheap cost.
Description
technical field [0001] The invention relates to automobile brake pads, in particular to a brake pad friction material, which is especially used in various types of cars. Background technique [0002] Traditional asbestos-based, semi-metallic, low-metal non-asbestos brake pads have problems such as low friction coefficient, not environmental protection, easy to generate noise during braking, and serious damage to the counterpart. The more advanced asbestos-free formula has made considerable improvements in some aspects, but there are also disadvantages in terms of high-temperature friction performance stability, service life, raw material costs, and production costs. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the existing brake pad friction materials and provide a brake pad friction material which has good resistance to high temperature and thermal decay, moderate service life (less damage to the counterpart) ...
Claims
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Application Information
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