SURFACE TREATMENT OF HEAT RESISTANT STAINLESS STEEL

PURPOSE:To form safely a film having high radiation rate on the surface of a heat resistant stainless steel at a low temp. with high work efficiency by sticking an alkali metallic compound to the surface of the steel and oxidizing the compound under heating in an atomosphere contg. oxygen. CONSTITUT...

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Bibliographische Detailangaben
Hauptverfasser:	NISHIMORI TADAO, MITSUMOTO SEIICHI, KANAYAMA KIYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS 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 FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To form safely a film having high radiation rate on the surface of a heat resistant stainless steel at a low temp. with high work efficiency by sticking an alkali metallic compound to the surface of the steel and oxidizing the compound under heating in an atomosphere contg. oxygen. CONSTITUTION:A heat resistant Fe-Cr or Fe-Cr-Ni stainless steel is dipped in an aqueous sodium hydrogencarbonate soln. as an alkali metallic carbonate soln., and it is dried and subjected to oxidation treatment at about 550-600 deg.C in the air. Sodium carbonate or potassium carbonate can be used besides the sodium hydrogencarbonate, and it is preferable that water is used as a solvent for the carbonate. By this method, the radiation rate of a heat resistant material or burner parts heated to a high temp. can be increased.