SURFACE COATING METHOD FOR METALLIC PARTS

PURPOSE:To prevent the corrosion of metallic parts by an external atmosphere and to relieve a thermal shock by coating a ceramic coating layer melted on the surface of the base metal with ceramics having internal pores. CONSTITUTION:A ceramic coating layer is formed on the surface of a base metal an...

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Bibliographische Detailangaben
1. Verfasser:	IZUHARA MASAMI
Format:	Patent
Sprache:	eng
Schlagworte:	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 INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PURPOSE:To prevent the corrosion of metallic parts by an external atmosphere and to relieve a thermal shock by coating a ceramic coating layer melted on the surface of the base metal with ceramics having internal pores. CONSTITUTION:A ceramic coating layer is formed on the surface of a base metal and irradiated with beams having high energy density. by the irradiation, the coating layer is melted and vitrified, forming the 1st coating layer having a dense structure and no pores. The 1st coating layer is coated with ceramics having internal pores to the desired thickness to form the 2nd coating layer.