METHOD FOR MANUFACTURING WATCH COMPONENT

A method for manufacturing a watch component is a method for manufacturing a watch component that is formed of an austenitized ferritic stainless steel including a base portion formed by a ferrite phase and a surface layer formed by an austenitized phase obtained by austenitizing the ferrite phase....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAKASAWA, Koki, HASEI, Hironori
Format:	Patent
Sprache:	eng ; fre ; ger
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 GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS HOROLOGY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PHYSICS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A method for manufacturing a watch component is a method for manufacturing a watch component that is formed of an austenitized ferritic stainless steel including a base portion formed by a ferrite phase and a surface layer formed by an austenitized phase obtained by austenitizing the ferrite phase. The method includes a first processing step for forming a thinned portion by providing a step in a base material formed of a ferritic stainless steel, a heat treatment step for performing nitrogen absorption treatment on the base material to form the surface layer on an outer surface side of the base portion, and a second processing step for providing a hole portion in the thinned portion.