Friction material, method of preparing same and friction lining
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United States of America Patent
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Nov 7, 2000
Grant Date -
N/A
app pub date -
May 20, 1999
filing date -
Sep 17, 1996
priority date (Note) -
Expired
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Abstract
A friction material comprising a sintered mass of iron in which graphite particles are dispersed, which sintered mass is formed from between 13 and 22 vol. % of iron fibers, between 13 and 22 vol. % of iron particles having a particle size of 10-400 .mu.m, between 40 and 70 vol. % of graphite particles having a particle size of 25-3000 .mu.m, and between 10 and 15 vol. % of a metallic binder having a melting point of 800-1140.degree. C., and a method of preparing such a friction material, wherein a mixture of these components is compressed at a pressure of at least 100 MPa so as to form a compact having a desired form and size, and where the compact thus formed is sintered at a temperature between 800 and 1140.degree. C. for a period of time which is sufficiently long for achieving concretion of iron fibers, iron particles and metallic binder.
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