发明名称 Method of producing steel with high manganese and low carbon content
摘要 A method of producing steel (1) with a high manganese and low carbon content on the basis of liquid pig iron (2) or liquid steel (3) and slag-forming constituents (4) with the object of preventing existing drawbacks of process route in vessels other than, e.g., electrical arc furnaces (18). With steel produced with a high manganese and low carbon content, in a process, the carbon component is reduced to about 0.7-0.8% by a combined blowing of oxygen (7) through top lances (8) and underbath nozzles (9) after feeding of liquid ferro-manganese (50 and liquid steel (3a) in a FeMn-refining converter (6a), wherein a component of a cold end product from premelt is added as cooling means (10), and wherein the carbon component is reduced to about 0.05-0.1% C by a continuous blowing of oxygen (7) through the underbath nozzles.
申请公布号 US7998243(B2) 申请公布日期 2011.08.16
申请号 US20100803451 申请日期 2010.06.25
申请人 SMS SIEMAG AG 发明人 ROSE LUTZ;WEISCHEDEL WALTER
分类号 C21C5/35;C21C7/068 主分类号 C21C5/35
代理机构 代理人
主权项
地址