High-temperature-resistant brake pad

Abstract

The invention discloses a high-temperature-resistant brake pad. The high-temperature-resistant brake pad comprises a steel plate, a thermal insulation layer and a friction block, wherein the friction block is prepared from a phenol-formaldehyde resin composite, the phenol-formaldehyde resin composite is prepared from raw materials in parts by weight as follows: 15-30 parts of phenol-formaldehyde resin, 3-10 parts of epoxy resin, 3-10 parts of organic silicon resin, 5-10 parts of carbon fibers, 3-10 parts of aramid fibers, 2-8 parts of quartz fibers, 12-30 parts of potassium magnesium titanate lamellas, 5-15 parts of sodium iron titanate lamellas, 15-30 parts of ferrotitanium powder, 2-10 parts of corundum powder, 3-10 parts of barite powder, 2-8 parts of aluminum powder, 1-3 parts of talc powder, 1-5 parts of iron oxide, 2-8 parts of zirconium dioxide, 2-8 parts of petroleum coke, 1-3 parts of natural graphite, 2-5 parts of bamboo charcoal and 2-5 parts of graphene. The provided high-temperature-resistant brake pad has excellent high-temperature resistance, good impact resistance and heat stability, high wear resistance, small thermal expansivity and long service life.

Description

technical field [0001] The invention relates to the technical field of brake pads, in particular to a high-temperature resistant brake pad. Background technique [0002] In the braking system of a car, the brake pad is the most critical safety part. Brake pads are generally composed of steel plates, bonded heat insulation layers and friction blocks. Among them, the steel plate should be painted to prevent rust; the heat insulation layer is composed of materials that do not conduct heat; the friction block is composed of friction materials and adhesives, which are squeezed on the brake disc or brake drum to generate friction during braking, and at the same time The friction between the tire and the ground converts the kinetic energy of the vehicle into heat energy after friction, so as to achieve the purpose of deceleration and braking of the vehicle. In the process of automobile braking, the comprehensive performance of the friction material will directly affect the safety...

AI Technical Summary

Problems solved by technology

However, the high temperature resistance of ordinary phenolic resin is still not ideal, and the brake pads made of it have the defects of brittleness, curing shrinkage and large thermal expansion rate, which lead to a significant decline in the performance of the brake pads and shorten the service life of the brake pads.