FAR INFRARED RAY RADIATING MATERIAL AND ITS PRODUCTION

PURPOSE: To produce a far IR radiating material having high far IR emissivity by using an Fe-Cr-Ni ternary heat resistant alloy. CONSTITUTION: The surface of an iron-based Fe-Cr-Ni alloy material having 9-76wt.% Ni content is roughened by blasting and an oxidized film layer 5 is formed by high temp....

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Bibliographische Detailangaben
1. Verfasser:	NAGASAWA MASAFUMI
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 produce a far IR radiating material having high far IR emissivity by using an Fe-Cr-Ni ternary heat resistant alloy. CONSTITUTION: The surface of an iron-based Fe-Cr-Ni alloy material having 9-76wt.% Ni content is roughened by blasting and an oxidized film layer 5 is formed by high temp. oxidation treatment for a prescribed time in the air at >=1,000 deg.C. The material is then cooled once and subjected to high temp. selective oxidation treatment at >=1,000 deg.C to form an oxidized film protecting layer 7 under the oxidized film layer 5.