低硫钢精炼工艺技术研究  

Study on refining technology of low-sulfur steel

作　　者：张敏 曾建华 

机构地区：[1]攀钢集团研究有限公司,四川成都611731

出　　处：《炼钢》2010年第4期37-39,59,共4页Steelmaking

摘　　要：为实现低硫钢甚至超低硫钢的生产,达到精炼过程钢包渣成分和性能的最佳控制,在考虑转炉下渣、炉渣氧化性以及钢水氧活度对钢包渣成分和性能影响的基础上,研究了适宜低硫钢生产的最佳精炼渣成分和加入制度、钢包渣改性剂的加入制度以及相应的钢包底吹氩制度等精炼工艺,并对低硫钢的精炼工艺进行了优化,达到了成品w(S)=(6.6～40.0)×10-6的水平。In order to realize the purpose of refining the low sulphur and even extra-low sulpur steel and optimally control the chemical compositions and properties of the ladle slag the optimal chemical compositions and feeding schedule of the refining flux for low sulphur steel production , the feeding schedule of the modifier for the ladle slag as well as the relative ladle bottom argon blowing regime have been developed and the technologies for refining the low sulphur steel optimized on the basis of taking full consideration of the influence of the converter tapping, the slag oxidability and the oxygen activity on the chemical compositions and properties of the ladle slag. As the results the sulfur content in steel as low as 6. 6 × 10^-6 -40 × 10^-6 is achieved in the production of low sulfur steel.

关 键 词：低硫钢 钢包渣 精炼 

分 类 号：TF704.3[冶金工程—钢铁冶金]