HEAT TREATMENT METHOD OF DRUM GEAR

PURPOSE: A heat treatment method of a drum gear is provided to improve a competitive power by treating the drum gear with heat without quenching. CONSTITUTION: In producing a drum gear(12) having a diameter of more than 3m, a shape of the drum gear is produced with cast steel added up with 0.03 to 0...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, HYEON GUK, PARK, YEONG HO, KIM, UNG GI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE: A heat treatment method of a drum gear is provided to improve a competitive power by treating the drum gear with heat without quenching. CONSTITUTION: In producing a drum gear(12) having a diameter of more than 3m, a shape of the drum gear is produced with cast steel added up with 0.03 to 0.05% of vanadium. After the shape of the drum gear is tempered, plural fans(14) and rubber hoses(16) are arranged around the drum gear. Wind and water are sprayed through the fans and hoses to the drum gear. Then, the heat treatment of the drum gear is completed.