METHOD OF CARBON STEEL MAKING
ferrous metallurgy; applicable in steel-making plants of metallurgical works. SUBSTANCE: method includes melting of low-carbon metal in steel melting unit, tapping of metal melt into ladle with liquid iron preliminarily filled into ladle for carbonization of molten metal and its deoxidation during i...
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Zusammenfassung: | ferrous metallurgy; applicable in steel-making plants of metallurgical works. SUBSTANCE: method includes melting of low-carbon metal in steel melting unit, tapping of metal melt into ladle with liquid iron preliminarily filled into ladle for carbonization of molten metal and its deoxidation during its pouring into ladle. Weight of liquid iron poured into ladle is determined by formula: Giron = 2.17-25.5 x Csl + 68.2 x Cr.m., where Giron is weight of iron for carbonization, t; Csl is carbon content in sample before tapping, %; Cr.mm is required content of carbon in ready metal, %. Then aluminum is added. Metal is tapped and deoxidizing agents are instructed during metal tapping. Blending blowing is performed. Then carbon content in steel is corrected by coke additions. Coke consumption in this case is determined by formula: Gcoke = 6799 x (Cr.m. - Cs2), where Gcoke is consumption of coke, kg; Cs2 is carbon content in sample after blending blowing, %. EFFECT: higher efficiency due to production of metal with carbon content within narrow limits and provided process of high carbon assimilation. 1 cl, 2 ex |
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