Manufacturing process for sintered Fe-P alloy product having soft magnetic characteristics

摘要

There is disclosed a method for manufacturing intricate shaped magnetic parts having excellent soft magnetic characteristics which includes forming powders of Fe and P having particle sizes less than 45 . mu.m; mixing 0.1 to 1.0% by weight P powder with Fe powder; adding a binder; injection-molding the mixture at 1200 kg/cm.sup.2 ; removing the binder by heating; sintering the binder free part at 1200°-1400. degree. C. for 30-180 min; and cooling the sintered part at a rate of less than 50° C./min.