Double-phase stainless steel smelting technology

The invention belongs to the technical field of steel smelting, and relates to a double-phase stainless steel smelting technology. According to the technology, a carbon steel material head, a stainless steel material head, stainless steel cuttings and high carbon ferro-chrome are adopted to serve as raw materials, high-chromium high-carbon molten steel is smelted through an intermediate frequency furnace, and relatively-high-cost low-carbon or micro-carbon chromium iron is not required to be adopted for smelting; after the temperature is proper, the molten steel is transferred into an AOD furnace from a steel ladle; smelting devices like the AOD furnace is adopted for conducting oxygen blowing, decarbonization and molten steel refining, and nitrogen is blown to the steel for increasing nitrogen to the steel; the cost generated by adopting nitralloy for nitrogen adding is reduced, and after the components are qualified, the steel is cast into an electrode blank; when electric slag is remelted, argon or dry air is adopted for protection, and the suction amount of a furnace hearth is further reduced; and the voltage and the current are adjusted to control the melting rate. The double-phase stainless steel smelting technology is also suitable for other applicable fields.