A steelmaking slag material

Abstract

The invention discloses a steelmaking slag-making material, and the slag-making material comprises the following materials in parts by weight: 65-75% of lime, 9-13% of fluorite powder, 16-20% of alumina, 6-8% of dolomite, and impurities. The lime containing in the slag-making material is a necessary ingredient for slag making, modification and the like in steelmaking production, helps to improve the furnace slag basicity, and ensures a good deoxidation effect, the alumina can adjust the slag system melting point, with increasing of the alumina, the viscosity of slag may increase, by control of the content between 16 and 20, a better slag-making effect can be achieved, by addition of the fluorite powder, the slag bonding degree can be reduced, and bonded slag on steel ladles can be prevented, the fluorite powder can accelerate the dissolution of the lime, and improve the furnace slag liquidity, magnesia contained in the dolomite can prolong the life of a fire resistant material, the fluorite powder and the alumina used in the slag-making material are slag materials used by electroslag remelting, and experiments show that the used fluorite powder and the alumina as the steelmaking slag-making material can exhibit better steelmaking slag-making effect, and play the role of turning waste materials into things of value.

Description

technical field [0001] The invention relates to a material, especially a steelmaking slagging material. Background technique [0002] At present, users have higher and higher requirements on the quality of steel, not only requiring less inclusion content in steel, but also small inclusion particle size. The purpose of electroslag remelting is to purify metal and obtain steel ingots with uniform and dense pure structure. The slag material used in electroslag remelting mainly contains fluorspar powder and alumina, while lime and fluorspar are generally used in the current market for steelmaking slag materials, and neither fluorspar powder nor alumina as slag material for electroslag remelting can be obtained very well. Good use, lots of waste. Contents of the invention [0003] In order to solve the above problems, the present invention provides a used material for steelmaking and slagging, which has a good effect of steelmaking and slagging. [0004] In order to achieve t...

AI Technical Summary

Problems solved by technology

[0002] At present, users have higher and higher requirements on the quality of steel, not only requiring less inclusion content in steel, but also small inclusion particle size. The purpose of electroslag remelting is to purify metal and obtain steel ingots with uniform and dense pure structure. The slag material used in electroslag remelting mainly contains fluorspar powder and alumina, while lime and fluorspar are generally used in the current market for steelmaking slag materials, and neither fluorspar powder nor alumina as slag material for electroslag remelting can be obtained very well. Good use, lots of waste