Gear product carburizing process method

The embodiment of the invention provides a gear product carburizing process method, and relates to the technical field of heat treatment process.The method comprises the steps that firstly, a workpiece is fed into a carburizing furnace, then carburizing gas is introduced into the carburizing furnace...

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Bibliographische Detailangaben
Hauptverfasser:	SHI YOUSEN, ZHANG ZHICHONG, ZHAI DINGRONG, SU YANG
Format:	Patent
Sprache:	chi ; 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 GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The embodiment of the invention provides a gear product carburizing process method, and relates to the technical field of heat treatment process.The method comprises the steps that firstly, a workpiece is fed into a carburizing furnace, then carburizing gas is introduced into the carburizing furnace, carburizing treatment on the workpiece is completed in the carburizing atmosphere, then the introduction flow of the carburizing gas is reduced, protective gas is introduced into the carburizing furnace, and carburizing treatment on the workpiece is completed in the carburizing atmosphere; and then the workpiece is subjected to diffusion treatment in a protective atmosphere. Compared with the prior art, the method has the advantages that the introduction flow of the carburizing gas is reduced after carburizing treatment, so that the protective gas is supplemented, the use amount of the carburizing gas is greatly reduced while the air pressure and the carbon potential in the carburizing furnace can be kept in a re