METHOD FOR PREVENTING OXIDATION IN FLAME CARBURIZING HEAT TREATMENT

PURPOSE:To prevent the occurrence of oxidation and carburizing in the high temp. heating zone in the periphery of a burning flame and in the carburizing completion part. CONSTITUTION:A work W as a material to be treated is provided to the inside of a chamber 1. Then, acetylene gas, not lower than th...

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Bibliographische Detailangaben
Hauptverfasser:	HACHISUGA JOJI, UCHINO RYUICHI
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 occurrence of oxidation and carburizing in the high temp. heating zone in the periphery of a burning flame and in the carburizing completion part. CONSTITUTION:A work W as a material to be treated is provided to the inside of a chamber 1. Then, acetylene gas, not lower than the equivalent ratio to oxygen, is supplied into the chamber 1 and burned and, by the combustion of the acetylene gas of not lower than the equivalent ratio, the oxygen in the air in the chamber is removed and also the burning flame of the acetylene gas is brought into contact with the surface of the work W through a nozzle 2 to apply heating, by which carburizing treatment is done.