Environment protection type friction material

Abstract

The present invention discloses an environment protection type friction material, which comprises the following components, by weight, 10-20 parts of diatomite (80-180 mesh), 8-15 parts of opened-cell expanded pearlite (14-120 mesh), 5-20 parts of a phenol formaldehyde resin, 10-12 parts of silicon carbide, 1-5 parts of zinc oxide, 3-9 parts of graphite powder, 1-6 parts of alumina, 1-9 parts of precipitated barium sulfate, 3-5 parts of magnesium oxide, 5-20 parts of rubber powder, 10-20 parts of a flame retardant agent, 2-6 parts of mica powder, 10-20 parts of ceramic powder, 1-2 parts of anatase type titanium dioxide powder, and 5-20 parts of an inorganic thickener. The friction material does not contain harmful substances, and has characteristics of no brake noise, low wear rate, stable high temperature braking performance, smooth deceleration braking, and low cost.

Description

technical field [0001] An environmentally friendly friction material. Background technique [0002] At present, there are three types of friction materials used in domestic vehicles: 1) Asbestos-based: Its manufacturing cost is low and the process is simple, and it is mainly used for agricultural vehicles and construction machinery. Its disadvantages: asbestos is harmful to the human body, pollutes the environment, suffers from severe high-temperature heat decay, poor braking performance, and low safety factor. This kind of product has been decreasing year by year. 2) Semi-metal base: It has good temperature resistance and decay resistance at high temperature, and its manufacturing quality is moderate. Its disadvantages are: high hardness of the product, noise during braking, especially when braking at low speed or in the morning. It is easy to produce noise, the surface of the product is easy to rust, and at the same time corrodes the counterpart, the thermal conductivity ...

AI Technical Summary

Problems solved by technology

Its disadvantages: asbestos is harmful to the human body, pollutes the environment, suffers from severe heat decay at high temperature, poor braking performance, and small safety factor. This kind of product has been decreasing year by year.

2) Semi-metal base: It has good temperature resistance and decay resistance at high temperature, and its manufacturing quality is moderate. Its disadvantages are: high hardness of the product, noise during braking, especially when braking at low speed or in the morning. It is easy to generate noise, the surface of the product is easy to rust, and at the same time corrodes the counterpart, the thermal conductivity is high, and when the friction temperature is higher than 300 degrees, it is easy to decompose the adhesive between the friction material and the steel sheet

3) Less metal base: the advantage is that it is less aggressive to the drum, and the noise is low. The disadvantages: the problem of noise and ash falling has not been solved, and it is easy to rust