Sintered friction material

Details Sintered friction material Sintered friction material

1998-08-31

1999-12-21

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75234, 75235, 75247, 75229, C22C 109

Patent

active

060043709

ABSTRACT:
A sintered friction material especially suitable for use in a braking system has a matrix of a copper-system metal such as copper, tin, nickel and aluminum, and contains a specific additive, graphite and potassium titanate as friction conditioners. The specific additive consists of at least one material selected from a group consisting of zirconium oxide, silica, dolomite, orthoclase and magnesium oxide. The specific additive, the graphite and the potassium titanate are preferably blended in volume ratios of 1 to 15%, 10 to 50% and 5 to 30% respectively. The form of the potassium titanate is at least one of whiskery, platy and spherical forms and preferably plate-like or spherical. The sintered friction material has good abrasion resistance, low abrasion of the counterpart, a high friction coefficient, excellent material strength, good chattering resistance, and good squealing resistance.

REFERENCES:
patent: 2948955 (1960-08-01), Allen et al.

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