Process for smelting controllable phase change stainless steel 0Cr16Ni6 for high-strength and high-toughness valve box

The invention relates to a process for smelting controllable phase change stainless steel 0Cr16Ni6 for a high-strength and high-toughness valve box, which comprises the following steps of: melting high-quality material heads, high-carbon ferrochrome and electrolytic nickel in an induction furnace by using a process route of an induction furnace, an argon-oxygen furnace, external refining, vacuum degassing and pouring, tapping after the temperature is proper, and adding into the argon-oxygen furnace; supplementing alloy and lime into an argon-oxygen furnace, blowing oxygen to decarburize to be less than 0.05%, adding silicon iron for reduction, adding metal manganese for integral manganese and micro-carbon ferrochrome, tapping after temperature components are proper, after tapping, performing refining station outside a converter, adding aluminum powder and silicon-calcium powder for deoxidization, feeding a silicon-calcium line before air extraction, adding carbon powder for accurate carbon adjustment, and the