MEMBER MADE OF STEEL MATERIAL WITH LAYER AND METHOD FOR MANUFACTURING MEMBER

PROBLEM TO BE SOLVED: To improve the thermal fatigue resistance and the erosion resistance of a metallic casting die. SOLUTION: A fixed die 12 is formed as follows. A nitrogen element source such as nitrogen gas is diffused on the cavity surface of a preliminarily molded body comprising an SKD61 mat...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAI TOMONORI, MUKODA YUKIHIRO, ISHII YUJI, SUNADA TOSHIHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FOUNDRY MOULDING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve the thermal fatigue resistance and the erosion resistance of a metallic casting die. SOLUTION: A fixed die 12 is formed as follows. A nitrogen element source such as nitrogen gas is diffused on the cavity surface of a preliminarily molded body comprising an SKD61 material to form a nitrogen-diffused layer 32. Subsequently, hydrogen gas and oxygen gas are supplied to form an oxide layer 34 consisting only of an iron oxide on the nitrogen-diffused layer 32. COPYRIGHT: (C)2004,JPO&NCIPI