Heat treatment method of perforating head

The invention discloses a heat processing method of punching bow, which comprises the following steps: (1) heating furnace temperature to 850 deg.c; loading bow in the furnace; dripping alcohol in the furnace at 5-6ml/min; finishing dripping alcohol after 1h; starting dripping the composite liquid o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	GENG ZHIJIA
Format:	Patent
Sprache:	chi ; 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:	The invention discloses a heat processing method of punching bow, which comprises the following steps: (1) heating furnace temperature to 850 deg.c; loading bow in the furnace; dripping alcohol in the furnace at 5-6ml/min; finishing dripping alcohol after 1h; starting dripping the composite liquid of alcohol and water with bulk rate at 1: 4; (2) heating to 1000 deg.c; insulating 4h; keeping pressure of furnace to 0.6-1.0Kpa; (3) cooling temperature to 850 deg.c; fetching bow out of furnace; transmitting bow through high-temperature fan; making the temperature in the furnace evenly.