Sintered powder metal friction material

Compositions: coating or plastic – Coating or plastic compositions – Tractive or friction surface

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188251M, C08K 308, C08K 306, C08K 304

Patent

active

043916414

ABSTRACT:
An iron-base, sintered powder metal friction material suitable for railroad braking is disclosed. The friction material comprises, by volume, 10-70% carbon; 0-2.5% sulfur; 0-10% alumina; 1-45% of a metal powder additive selected from the group consisting of copper, manganese, ferrochrome, chrome carbide compounds and mixtures thereof; and the balance iron. In preferred embodiments, the powder metal additives are 11-25% copper, or 9-15% manganese, or 5-20% ferrochrome.

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patent: 3434998 (1969-03-01), Aldrich et al.
Chemical Abstracts, 84:63347y, 1974.
Chemical Abstracts, 88:77239j, 1975.
Chemical Abstracts--73.122931g--Sintered Iron-Graphite Friction Materials--English Abstract.
Chemical Abstracts--73.133454e--Properties & Production of Steel Based Sintered Friction Material--English Abstract.
Chemical Abstracts--83.135543p--Chromium Effect on Structural Transformations . . . Sintered Materials--English Abstract.

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