Smelting of stainless steel: a three-step process

That is, electric furnace + combined blowing converter + VOD three-step smelting of stainless steel. Its characteristic is that the electric furnace is used as a melting device, and it is only responsible for providing semi-finished molten steel containing Cr and Ni to the converter. The main task of the re-blowing converter is to quickly decarburize by blowing oxygen to achieve the purpose of maximum recovery of Cr. VOD vacuum oxygen blowing is responsible for further decarburization, degassing and composition fine-tuning. The three-step method is more suitable for areas where the supply of argon gas is relatively short, and the molten iron with high carbon content is used as raw material, and the professional factory that produces low C and low N stainless steel has a large proportion.