DIE OR MOLD HAVING SURFACE COATING FILM

PROBLEM TO BE SOLVED: To provide a long-lasting die which has a surface coating film and has improved thermal crack resistance and oxidation resistance. SOLUTION: The die or a mold has the surface coating film, which has a thickness of 0.3-50 μm and an average value of the compressive residual stres...

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Bibliographische Detailangaben
1. Verfasser:	OHARA HISANORI
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 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 FORGE FURNACES FORGING FOUNDRY MOULDING HAMMERING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRESSING METAL PUNCHING METAL RIVETING 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 provide a long-lasting die which has a surface coating film and has improved thermal crack resistance and oxidation resistance. SOLUTION: The die or a mold has the surface coating film, which has a thickness of 0.3-50 μm and an average value of the compressive residual stress of 0.5-8 GPa and is formed by alternately depositing thin layers of titanium chromium nitride and aluminum nitride for at least 10 times on the surface of a die base material or a mold base material made of a sintered hard alloy, ceramic, steel or cast iron. COPYRIGHT: (C)2008,JPO&INPIT