一、前言精密铸造用真空炉用于熔炼含有大量钛、铝等活性金属的合金。由于它是在真空中快速重熔已严格调整好成份的母合金铸铁,因此合金成份不致变化,并可在陶瓷壳型中铸造出不需焊接和机械加工,是制造飞机和机械零部件 I. Introduction Precision Casting Vacuum Furnace for smelting contains a large amount of titanium, aluminum and other active metals alloy. Because it is a master alloy cast iron that has undergone a rapid remelting in a vacuum and has a finely adjusted composition, the alloy composition does not change and casts out the need for welding and machining in the ceramic shell to create aircraft and machinery components