METHOD OF REGENERATION HEAT TREATMENT OF IRON-BASED MIXED POWDER RECOVERED POWDER AND IRON-BASED MIXED POWDER

摘要

PROBLEM TO BE SOLVED: To provide a regeneration heat treatment method of an iron-based mixed powder recovered powder which aims at utilization of a recovered powder by developing a technique of separating or eliminating additives etc. from an iron-based mixed powder recovered powder and diverting to e.g. an auxiliary material for an iron-based mixed powder.SOLUTION: An iron-based mixed powder recovered powder is kept in the atmosphere or an oxidative atmosphere at 350-700°C in 0.5 h or longer.