IRON BASE MIXED POWDER FOR HIGH STRENGTH SINTERED PARTS

摘要

On the basis of mass percentage of a mixture, 1-5% of Ni powder, 0.5-3% of Cu powder, and 0.2-0.9% of graphite powder are mixed into an alloy steel powder containing 0.5-3 mass% of prealloyed Ni, more than 0.7 to 4 mass% of prealloyed Mo, and the balance being Fe and unavoidable impurities. The alloy steel powder may contain 0.2-0.7 mass% of prealloyed Cu in addition to Ni and Mo.