Copper-base sintered sliding material excellent in slipperiness and machaniability
AssigneeTaiho Kogyo Co., Ltd.
InventorsToshihiko Kira, Hiromi Yokota, Youichiro Kitagawa, Eichi Sato
Life of this patent
Estimating the term…
Abstract
In order to make the wear-resistance and machinability of the copper-based sliding material, in which such particles as AlN, Al.sub.2 O.sub.3, NiB, Fe.sub.2 B, SiC, TiC, WC, Si.sub.3 N.sub.4, Fe.sub.3 P, Fe.sub.2 P and/or Fe.sub.3 B are dispersed in the matrix consisting of sintered Cu or Cu alloy, the dispersion is performed such that the weight proportion and the average particle diameter of the medium-hardness particles of Hv 500 or more and 1000 or less are greater than those of the high-hardness particles having Hv 1100 or more.
Claims12
A copper-based sintered sliding material having improved sliding characteristics and machinability, comprising high-hardness particles of Hv 1100 or more and medium-hardness particles of Hv 1000 or less dispersed in the matrix consisting of Cu or Cu alloy, characterized in that said medium-hardness particles are greater in weight proportion and in average particle diameter than said high-hardness particles.
Dependencies are inferred from the claim text.