| 摘要 |
PURPOSE:To obtain combination of member in which wear characteristics of both members at sliding surface opposing with each other, by composing one member of composite material having alumina-silica fiber as strengthening material contg. mullite crystal, and composing the other member of cast iron. CONSTITUTION:In combination of two members, sliding surface part of the first member against the second member is composed of composite material contg. alumina-silica fibers as strengthening material and a prescribed metal as matrix. The other second member is composed of cast iron to offer combination of the aimed two members. Said composite material has compsn. of 35-65wt% Al2O3, 65-35wt% SiO2, and 0-10wt% the other components, >=15wt% mullite crystal quantity and alumina-silica fiber as strengthening material in which content of nonfiber particle having >=150mu diameter is <=5wt% in the aggregate. Metal selected from Al, Mg, Sn, Cu, Pb, Zn and alloy composed mainly of these metal are used as matrix to the strengthening material, to compose said composite material.
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