Surface pretreatment method for improving abrasion resistance of automobile brake pad

Abstract

The invention provides a surface pretreatment method for improving the abrasion resistance of an automobile brake pad and relates to the technical field of processing and treatment of brake pads. Thesurface pretreatment method for improving the abrasion resistance of the automobile brake pad comprises the processes that a brake pad blank is subjected to heat treatment and cutting machining and then subjected to sanding treatment, cleaning treatment, carbon and nitrogen infiltration treatment, sand blasting treatment, secondary cleaning treatment and the like; and finally, a layer of treatmentliquid is smeared, and gluing is conducted after drying. After a series of treatment, the internal stress of the brake pad can be effectively lowered, the surface hardness of the brake pad can be improved, the brake pad has the quite high abrasion resistance, corrosion resistance, thermal fatigue resistance and adhesion prevention, and the service life of the brake pad is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of brake pad processing, in particular to a surface pretreatment method for improving the wear resistance of automobile brake pads. Background technique [0002] With the rapid development of the automobile industry, automobile users have higher and higher requirements for braking safety performance. The common brake pads on the market are mostly asbestos products. In the case of emergency braking, the friction coefficient will drop sharply, resulting in a decline in power torque Seriously, it affects the safety of driving, and asbestos material will produce a lot of dust under the action of high temperature wear, which has carcinogenic effect. Excellent friction plate materials should have good friction coefficient and wear resistance, high elastic modulus, sufficient mechanical strength, high heat resistance, high thermal conductivity and heat capacity, in order to ensure that the service life meets the de...

AI Technical Summary

Problems solved by technology

[0003] Brake pads are the most critical safety parts in the braking system of a car. The brake pads play a decisive role in the quality of all braking effects. Therefore, good brake pads are the protectors of people and cars. The heat insulation layer is made of Composed of heat transfer materials, the purpose is heat insulation. The friction block is composed of friction material and adhesive. When braking, it is squeezed on the brake disc or brake drum to generate friction, so as to achieve the purpose of vehicle deceleration and braking, but the mechanics of the brake pad Low performance will not only lead to poor braking effect, but also lead to serious wear and tear, greatly affecting its use effect; The cost of preparation will increase the preparation process, and there are few researches on the surface treatment of brake pads, which has led to the lack of breakthrough development in the field of brake pads.