Noise-reduction frictional material

Abstract

The invention discloses a noise-reduction frictional material, which is prepared from the following raw materials in parts by weight: 30-48 parts of mineral fiber, 13-28 parts of phenolic resin, 13-20 parts of synthetic graphite, 10-18 parts of coke particles, 5-8 parts of antimony sulfide, 3-6 parts of hydroxyl acrylic resin, 125-145 parts of nanometer rare earth powder, 3-8 parts of deionized water, 3-5 parts of binder, 1-5 parts of corrosion inhibitor, 5-8 parts of iron oxide red, 2-8 parts of gypsum whisker, 5-15 parts of aramid fiber, 5-12 parts of red copper fiber, 3-8 parts of barium sulfate, and 3-12 parts of acrylonitrile-butadiene rubber powder. The noise-reduction frictional material can effectively reduce peristalsis noise.

Description

technical field [0001] The invention relates to a vehicle brake friction material, in particular to a noise reduction friction material. Background technique [0002] There are many classification methods for car brake noise. According to the vehicle motion state, it can be divided into driving brake noise, parking brake noise, and creep noise in the state of non-motion (that is, the momentary state after starting the engine); for advanced As far as cars are concerned, interior noise is one of the important factors that affect the driving experience. Among them, there is a great correlation between driving brake noise and parking brake noise and the driver's habit of using brakes. As long as the driving operation is reasonable, completely It can be ignored, but the creep noise mostly occurs when the vehicle is in the state of moving or not, and its occurrence is closely related to the friction material on the disc brake pad. At present, there is no corresponding method in th...

AI Technical Summary

Problems solved by technology

[0002] There are many classification methods for car brake noise. According to the vehicle motion state, it can be divided into driving brake noise, parking brake noise, and creep noise in the state of non-motion (that is, the momentary state after starting the engine); for advanced As far as cars are concerned, interior noise is one of the important factors that affect the driving experience. Among them, there is a great correlation between driving brake noise and parking brake noise and the driver's habit of using brakes. As long as the driving operation is reasonable, completely It can be ignored, but the creep noise mostly occurs when the vehicle is in the state of moving or not, and its occurrence is closely related to the friction material on the disc brake pad. At present, there is no corresponding method in the industry to solve the creep noise question