Material for non-asbestos copper fibre brake disc

Abstract

The invention relates to a non-asbestos copper fiber brake plate material, composed of phenolic resin, frication dust, butadiene acrylonitrile rubber, alumina, chromite, feldspar, cut copper fiber, needle shape wollastonite powder, tire powder, magnesia and lignin fiber; the weight percentages of the ingredients are as follow: phenolic resin 8-12%, frication dust5-15%, butadiene acrylonitrile rubber2-5%, alumina5-10%, chromite15-25%, feldspar5-8%, cut copper fiber6-8%, needle shape wollastonite powder10-15%, tire powder15-20%, magnesia2-5% and lignin fiber15-20%. The non-asbestos fiber brake plate with a copper substrate is of high brake performance, stable friction coefficient, high thermal conduction, good head dissipation performance in the rubbing process and good plasticity and has no harm to dualization; the copper substrate has small binding affinity to oxygen and is slow to oxidate in air.

Description

technical field [0001] The invention relates to a material for a brake pad, in particular to a material for an asbestos-free copper fiber brake pad. Background technique [0002] Brake pads (brake pads) are one of the indispensable components in brakes, clutches and friction transmissions of various machinery and equipment. Its most important feature is that it can absorb kinetic energy, convert kinetic energy into heat and dissipate it into the air, the brake pad itself has no destructive wear, and the friction parts are not damaged. [0003] Motor vehicle brake pads often use non-metallic and semi-metallic friction materials, usually made of rubber and resin as the bonding matrix, and metal and non-metallic powders are added as fillers, and high-temperature resistant fibers are often added to the material. Such as asbestos and some minerals and ceramic fibers. Most of the friction materials use asbestos as the main component. Because asbestos is very harmful to human he...

AI Technical Summary

Problems solved by technology

Among them, although steel fiber non-asbestos brake pads can meet the basic braking performance and have the advantage of low cost, when used on the front brake, the braking is weak, and it has affinity with the dual (cast iron or steel), and the friction coefficient is stable. The resistance is not high, the content of Mn and P in the steel wool is high, which is not conducive to frictional couples and other shortcomings

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