MEMBER FOR MOLTEN METAL, COMPOSED OF SINTERED ALLOY HAVING EXCELLENT CORROSION RESISTANCE AND WEAR RESISTANCE TO MOLTEN METAL, ITS PRODUCING METHOD AND MACHINE STRUCTURAL MEMBER USING IT

摘要

PROBLEM TO BE SOLVED: To provide a member for molten metal having extremely excellent corrosion resistance and parting property to the molten metal and excellent in thermal fatigue characteristic, mechanical characteristic and wear resistance, and its producing method. SOLUTION: This member is made of Mo2FeB2type double boride base hardening sintered alloy as a base material and formed of stable and close nitride film or oxide film and the nitride film consisting essentially of B, Mo, Fe, Cr and nitrogen on this surface, and used as the member for molten metal. COPYRIGHT: (C)2003,JPO