GAS CARBURIZATION DEVICE AND GAS CARBURIZATION METHOD

A gas carburizing apparatus (1) includes a carburizing container (2), a rotation support member (3), an induction heating coil (4), an inner injection nozzle (51A), and an outer injection nozzle (52). The carburizing container (2) houses a workpiece (7) having a cylindrical portion (71). The rotatio...

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Bibliographische Detailangaben
Hauptverfasser:	KITA Takuya, ASAOKA Junya
Format:	Patent
Sprache:	eng ; fre ; ger
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:	A gas carburizing apparatus (1) includes a carburizing container (2), a rotation support member (3), an induction heating coil (4), an inner injection nozzle (51A), and an outer injection nozzle (52). The carburizing container (2) houses a workpiece (7) having a cylindrical portion (71). The rotation support member (3) is for rotating the workpiece (7) around a center axis (O1) of the cylindrical portion (71). The induction heating coil (4) is for induction-heating the workpiece (7). The inner injection nozzle (51A) is arranged in the carburizing container (2), and injects an inner carburizing gas (G) to thereby cause the inner carburizing gas to collide with an inner circumferential surface (711) of the cylindrical portion (71). The outer injection nozzle (52) is arranged in the carburizing container (2), and injects an outer carburizing gas (G) to thereby cause the outer carburizing gas to collide with an outer circumferential surface (712) of the cylindrical portion (71).