The iron is melted with cupola- mainfrequency furnace duplex process, and pouring was conducted with pneumatic insulated pouring ladle.
采用热风冲天炉-工频炉双联熔炼，气压保温浇包浇注。
Strength design of stationary rings of ladle frame concerns pouring safety, ladle service reliability and its manufacture cost.
浇包吊环强度设计事关浇注生产的安全性、浇包使用的可靠性和产品制造的经济性。
If ladle pouring, are the ladles on heat when not in use?
如果用浇包浇注，不用的浇铸包是否保持加热状态？
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