Abstract: The P content in molten steel during eccentric bottom tapping of Consteel electric are furnace was ≤0.010% by controlling temperature of molten steel 1560~1590 ℃ and melting with foaming slag in whole period. The oxygen content in bearing steel produced at Guiyang Stecl was(5～11)×10-⁶,average oxygen content was 9×10-⁶ by low basicity compound slag refining in ladle furnace,≤67 Pa VD treatment with Ar stiring for 20 min, Shield cast in whole period and mold electromagnetic stiring for 150 mm×150 mm billet casting.

Key words: GCr15 Bearing Steel, Consteel EAF,LF(VD),Oxygen Content

摘要： 通过Consteel电弧炉偏心底出钢留渣作业,熔炼过程温度控制为1 560~1 590℃,全程泡沫渣冶炼,出钢时[P]≤0.010%;LF时用低碱度复合精炼渣精炼,VD处理时,真空度≤67 Pa,氩气搅拌20 min;150 mm×150 mm方坯连铸采用全程保护浇铸和结晶器电磁搅拌,使贵阳特钢GCr15轴承钢中的氧含量为(5~11)×10^-6,平均氧含量为9×10^-6。

关键词: GCr15轴承钢, Consteel EAF, LF(VD),  , 氧含量