| 摘要 |
PROBLEM TO BE SOLVED: To provide an iron-based powder mixture having superior fluidity and hopper discharge property and also having excellent property of filling into a narrow width die. SOLUTION: Free lubricant powder containing 0.02 to 5.0% by mass of an antistatic agent and having a nearly spherical powder shape is mixed with iron-based powder in an amount of 0.1 to <1.20% by mass per total amount of the iron-based powder mixture. Other than the antistatic-agent-containing free lubricant powder, antistatic-agent-free free lubricant powder can further be mixed in an amount of 0.5 to 1.2% by mass, in total of the antistatic-agent-containing free lubricant powder and the antistatic-agent-free free lubricant powder, per total amount of the iron-based powder mixture. Moreover, as the iron-based powder, that prepared by allowing alloying powder and/or machinability-improving powder to adhere to the surface thereof via a binder can be used. COPYRIGHT: (C)2004,JPO
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