| 摘要 |
PURPOSE:To improve wear resistance as sintered sliding material, by dispersing Cu-Ni-B alloy or Cu-Ni-Fe-B alloy into composite matrix in which there are iron and brass parts in spotted state with each other. CONSTITUTION:Total compsn. of sliding member is composed of 6-54wt% Cu, 1-24% Zn, 0.5-3% Zn, <=0.9% Ni, <=0.3% B and the balance Fe, if necessary <=4% at least one of Pb and graphite. In the compsn., at least one kind of Cu-Ni-B alloy contg. about 1-30% Ni, about 1-10% B, or Cu-Ni-Fe-B alloy in which about 1-25% Fe is added thereto are dispersed by 0.1-3% into matrix where there are iron and brass parts in spotted state. Since wears of both sliding material itself having the compsn. and opposed material are less even in relatively high surface pressure, high temp., service life of these mechanical parts can be prolonged.
|
