Hight-performance semi-metal brake sheet material without asbestos

A high-performance, asbestos-free technology, applied in the field of brake pad materials, can solve the problems of low performance grade, low temperature resistance, and performance that need to be improved
CN1818003AInactive Publication Date: 2006-08-16JIANGYIN POLYTECHNIC COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGYIN POLYTECHNIC COLLEGE
Publication Date
2006-08-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A high-performance semi-metal brake sheet material without asbestos consists of 5-30% ledeburite-phase fortified iron-base alloy powder, 5-20% pure copper powder or bronze powder, 5-25% nanometer budicyan rubber powder, 5-25% modified phenolic resin, 0.5-2% dithiuram sulfide, 0.5-2% tetramethyl trisulfide thiuram improver, 5-20% glass fiber or / and 5-20% steel fiber or / and 1-10% natural bast fiber, 1-10% carbon fiber composite additive, 1-10% nanometer aluminum oxide and other bulking filler, 1-10% flake-shaped graphite, 1-12% zirconium sulfate, 0.3-3% sulfide and 0.5-3% boron nitride. It can endure 350-400 DEG C temperature, its friction coefficient is between 0.35-0.45 and has excellent thermal attenuation performance and long life.
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Description

Technical field:

[0001] The invention relates to a brake pad material, in particular to a new high-performance non-asbestos semi-metal brake pad material, which can be used for medium and high-end automobiles, heavy trucks, high-horsepower tractors, and also used for oil drilling rigs and clutches, and can be made into Disc or drum brake pads. Background technique:

[0002] For a long time, brake pads with asbestos as the main friction material have been used as brake materials for motor vehicles. Asbestos products and their reaction products are carcinogenic to humans. Therefore, non-asbestos brake materials are the development direction and inevitable trend. At present, there are non-asbestos semi-metal brake materials, but their current performance grades are not high, mainly due to the low temperature resistance, which is only between 250 and 350 ℃, and the thermally stable friction coefficient is only 0.25 to 0.35, and the performance needs to be improved. Summary of the in...

Claims

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