Machining process of calcium sulfate whisker brake pad

Abstract

The invention relates to a machining process of a calcium sulfate whisker brake pad. The calcium sulfate whisker brake pad comprises steel cotton fiber for improving the product strength, resin for playing a bonding role, wollastonite, aramid fiber for improving the strength of a friction material, rubber powder for improving the bonding force and the flexibility of the friction material, calciumsulfate whiskers for stabilizing the friction coefficient and improving the wear resistance, graphite for adjusting the friction performance, zircon powder, antimony sulfide for stabilizing a high-temperature friction coefficient, brass with friction increasing and heat conducting functions, tin sulfide with a noise reducing function and barium sulfate for stabilizing the friction coefficient. Thecalcium sulfate whisker brake pad comprises, by weight, 10-20 parts of the steel cotton fibers, 8-12 parts of the resin, 5-15 parts of the wollastonite, 2-3 parts of the aramid fibers, 3-6 parts of the rubber powder, 7-15 parts of the calcium sulfate whiskers, 5-10 parts of the graphite, 3-6 parts of the zirconite powder, 2-5 parts of the antimony sulfide, 3-5 parts of the brass, 2-5 parts of thetin sulfide and 8-15 parts of the barium sulfate.

Description

technical field [0001] The invention relates to a processing technology of a calcium sulfate whisker brake pad, which belongs to the field of automobile brake systems. Background technique [0002] At present, the friction materials for automobiles in my country are dominated by semi-metals, accounting for more than 70% of the total output. However, semi-metal friction materials have high product density, are easy to rust and scratch, and are prone to low-frequency noise during use. The disadvantage is that it can no longer meet people's higher and higher requirements for friction material products. [0003] At present, the development of domestic automobile brake pads is still at the stage of focusing on braking effect and safety, and has not developed to the stage of emphasizing comfort and environmental protection. However, modern automobiles are developing towards high performance, high speed, safety and comfort, which requires that the braking system, which is an import...

AI Technical Summary

Problems solved by technology

[0004] In view of this, in the patent document that the application number is 200710114885.8, it is disclosed that calcium sulfate sulphate is used for the method for preparing brake pads, and the above-mentioned comparative document has disadvantages such as high noise

Images