低硫低氧钢钢包渣成分控制技术研究  

Study on control technology of slag composition for low-sulfur & low-oxygen steel

作　　者：张敏[1] 曾建华[1] 潘红[1] 

机构地区：[1]攀钢集团研究院有限公司,四川成都611731

出　　处：《炼钢》2012年第5期43-47,共5页Steelmaking

摘　　要：为实现高品质低硫、低氧钢的生产,有效降低钢中T.O、S含量,在考虑转炉下渣、炉渣氧化性以及钢水氧活度的条件下,研究确定了用于低硫、低氧钢冶炼的CaO-SiO2-Al2O3精炼渣系,并结合转炉下渣改质技术以及LF精炼钢包渣成分控制技术等工艺措施,制定了低硫、低氧钢的钢包渣改质制度。采用该技术生产的27CrMoNbV等圆管坯钢达到了成品w(T.O)≤15×10-6,w(S)≤0.005%的水平,实现了低硫、低氧钢的生产。In order to effectively reduce the content of oxygen and sulfur in steel and pro- duce low-sulfur and low-oxygen steel studies on slag have been carried out. Refining slag series CaO-SiO2-A1203 is determined to be used in refining the low sulphur and low oxygen steel under the conditions that all the factors concerned such as amount of slag from the converter, the oxidizability of the converter slag and the activity of the oxygen are taken into full consideration and in the meanwhile a schedule for modification of the ladle slag in refining the low sulphur and low oxygen steel is drawn up in connection of the slag modification technology of the converter slag and the chemical composition con- trol technology of the ladle slag in LF refining. The results show that oxygen content in the tube steel blank 27CrMoNbV produced using this technology is not more than 15 x 10-6 and sulfur content is as low as O. 005 sulphur and low oxygen steel is realized. and therefore the aim of production of low

关 键 词：钢包渣 精炼渣 脱硫 低氧钢 低硫钢 

分 类 号：TF713.3[冶金工程—钢铁冶金]