| 摘要 |
PURPOSE: To produce a sintered alloy for skid, capable of being easily produced and showing the most effective sliding action, by specifying a composition consisting of Fe, Cu, Zn, Pb, and Sn and providing a sintered alloy composition containing specific amounts of specific superfine quartz grains. CONSTITUTION: A raw material powder, prepared by mixing, by weight, 20-80% Fe, 15-77% Cu, 1-26% Zn, 0.5-7% Pb, 0.5-7% Sn, and 0.05-0.5% of spherical superfine quartz grains having nonuniform grain size mainly of about 0.2-0.4μm, is compacted and sintered at 830-1000 deg.C. The superfine quartz grains can be obtained by irradiating high purity quartz glass with high temp. laser beam of about 35000-40000 deg.C and then recovering the resultant evaporated gas and cooling it.
|
