With the upgrading of the single equipment, the metallurgical characteristic of modern cupola - induction furnaceduplex melting is variable.
随着单体设备的不断更新升级，现代冲天炉—感应炉双联熔炼的冶金特性也发生了很大的变化。
2
The iron is melted with cupola- mainfrequency furnaceduplex 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。
3
It was investigated that the short-cut process of producing high quality iron castings by duplex melting with blast furnace and medium frequency induction furnace.