Rolling mill leveling of 1.1250 steel after replacing the back-up roll (deviation of extreme phenomenon is 1.20mm); 2. When the carbon content exceeds 0.15(not higher than 0.25), the problem of precision casting of steel grade Widmannian structure is eliminated; 3. Influence of Niobium Titanium Alloy on Steel Structure; 4.1250 steel rolling head and tail shape control.

Second, in order to adapt to the changes in the steel market and meet the product needs of customers, our company will focus on the research and development of new products and the listing of enterprises. At present, the company is in the stage of product upgrading, and mainly meets the following problems in the process of steelmaking :1. The spatter problem in the desulfurization process of molten iron desulfurization station is avoided or reduced in steelmaking. 2. Control and reduce the slab center segregation factor analysis: 20 large casting 0*1000mm cross section casting speed analysis :3. Short-time treatment of ladle slag; 4. Avoid analysis of coil quality problems.

3.1. Solve the technical problems of sintered electrostatic precipitator and chamber agglomeration; 2. Analysis of adjustment factors of ratio of fine powder and ore powder, ore powder and ore powder; 3. Analysis and safety evaluation of the optimal combination scheme of raw material components.