MOLDED BODY FOR SINTER ALLOY, ABRASION RESISTANT IRON-BASED SINTER ALLOY AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a molded body for sinter alloy having improved mechanical strength and abrasion resistance of a sinter alloy which the molded body is sintered, an abrasion resistant iron-based sinter alloy and a manufacturing method therefor.SOLUTION: An abrasion resistant iron-based sinter alloy is manufactured by pressure power molding a molded body for sinter alloy from a mixture powder containing hard powder, graphite powder and iron-based powder, dispersing C of the graphite powder of the molded body for sinter alloy in hard particle constituting the hard powder and firing the molded body for sinter alloy. The hard powder consists of Mo:10 to 50 mass%, Cr:3 to 20 mass%, Mn:2 to 15 mass% and the balance Fe with inevitable impurities and a mixture powder contains the hard powder of 5 to 60 mass% based on the total amount of the hard powder, the graphite powder and the iron-based powder and the graphite powder of 0.5 to 2 mass%.SELECTED DRAWING: None