A PROCESS FOR RAISING THE TEMPERING RESISTANCE OF A STEEL WORK PIECE

The present invention relates to a process for raising the tempering resistance of a steel work piece, which is vacuum carburized and austenized and then quenched in a medium with a heat transfer coefficient higher than 1500 W/m2K. La présente invention concerne un procédé pour élever la résistance...

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Bibliographische Detailangaben
Hauptverfasser:	PITELLA, ROGERIO, LIPPMANN, NILS
Format:	Patent
Sprache:	eng ; fre
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 present invention relates to a process for raising the tempering resistance of a steel work piece, which is vacuum carburized and austenized and then quenched in a medium with a heat transfer coefficient higher than 1500 W/m2K. La présente invention concerne un procédé pour élever la résistance au revenu d'une pièce à usiner en acier, qui est cémentée sous vide, austénitisée puis trempée dans un milieu présentant un coefficient de transfert de chaleur supérieur à 1500 W/m2K.