Friction material used for manufacturing brake lining and preparation method thereof

Abstract

The invention provides a friction material used for manufacturing a brake lining and a preparation method thereof. The friction material is characterized in that the friction material is prepared from, by weight, 1-4 parts of Teflon powder, 7-15 parts of chemigum modified phenolic resin, 2-7 parts of aramid fiber, 4-8 parts of vermiculite powder, 4-10 parts of calcium hydroxide, 15-30 parts of barium sulfate, 3-0 parts of red copper fiber, 7-15 parts of graphite, 3-10 parts of rubber powder, 1-6 parts of zirconium silicate, 15-30 parts of potassium titanate and 0.5-2 parts of aluminium oxide.The components are added into a high-speed plow harrow mixing machine, uniformly mixed and put in a mold for hot pressing, finally, the mixture is placed in an oven and heated to 170 DEG C from the indoor temperature, the temperature rises for 3 hours at the same speed, and the temperature of 170 DEG C is preserved for 5 hours; the mixture is cooled to below 80 DEG C with the oven, and after the mixture is taken from the oven, the brake lining is obtained. The brake lining adopting the raw materials and prepared by adopting the method can effectively avoid installing accidents of wheel lock, vehicle drifting, rollover and the like of vehicles on rainy days and improves the safety performance of the vehicles.

Description

technical field [0001] The invention relates to the technical field of automobile manufacturing, in particular to a friction material for making automobile brake linings and a preparation method thereof. Background technique [0002] In daily life, we can often find that the friction between two relatively sliding contact surfaces is greater under wet or slightly wet conditions than under completely dry conditions, for example: rubbing glass when our hands are dry It will feel smoother, and it will feel very jerky when rubbing the glass with sweaty hands or a small amount of moisture. This phenomenon also exists in the braking process of automobile brakes, especially drum brakes. Usually, vehicles using drum brakes can normally decelerate and brake when driving on dry roads. The wheel locks up and the vehicle drifts. The inventor has found through long-term observation and research that when the vehicle is driving on a rainy day or on a slippery road surface and water spla...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of the background technology, the present invention provides a friction material for making automobile brake linings and a preparation method thereof, so as to solve the problem in the prior art that the automobiles are driven in rainy weather and the brake linings of the brakes are in semi-wet conditions. The friction torque will increase abnormally, which will cause unsafe problems such as wheel lock and tail flick.

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