LF精炼气瓶钢的Si-Ca-Ba合金脱氧工艺  

Deoxidization Process for Gas Bottle Steel during Ladle Furnace Refining by Si-Ca-Ba Alloy Deoxidization

作　　者：及占林[1] 王炳禄[1] 

机构地区：[1]天津钢管集团有限公司炼钢厂,天津300301

出　　处：《特殊钢》2006年第3期61-62,共2页Special Steel

摘　　要：天津钢管公司采用150t EAF-150t LF（VD）-CC工艺生产30CrMo，37Mn等气瓶钢Φ210～310mm圆管坯。生产统计数据表明，在LF精炼时用Si≥50％，Ca≥12％，Ba≥13％合金替代全用Al脱氧，使[Alt]从0．026％降至0．006％，钢中氧含量为25×10^-6，提高了钢的清洁度，减少了轧制过程中钢材的裂纹废品。The Φ210 ～ 310 mm round tube billet of gas bottle steels such as steel and steel 30CrMo and 37Mn are produced by 150 t EAF- 150 t LF（VD） - CC process at Tianjin Pipe Co. The production statistic data showed that during LF refining using ≥50Si, ≥12Ca, ≥ 13Ba alloy to replace total aluminium deoxidization, the [Alt] decreased to 0.006% from 0.026%, the oxygen content in steel was 25 × 10^-6, with the result that the cleanliness of steel increased and the clack rejection rate decreased obviously.

关 键 词：气瓶钢 LF精炼 Si-Ca-Ba合金 脱氧 

分 类 号：TF769.2[冶金工程—钢铁冶金] X703[环境科学与工程—环境工程]