摘要
EAF-LF-VD冶炼60Si2MnA和55CrSiA弹簧钢时EAF出钢过程加17～23 kg/t低铝硅铁(Al含量≤0.50%)脱氧,LF补加3～6 kg/t硅铁,并控制精炼渣的碱度≤2.5,可控制[Als]≤60×10^(-6),总[O](9～20)×10^(-6),A类夹杂级别≤0.5,B类≤0.5,C类≤1.5,D类≤0.5。用该脱氧工艺冶炼的钢水可浇注性强,适合大批量工业性生产。
In spring steel 60Si2MnA and 55CrSiA steelmaking by EAF-LF-VD, it is available to control [ Als] ≤ 60 ×10^-6, the total [ O] （9 - 20） ×10^-6, and get the rating of A series inclusion ≤0. 5, B series ≤0. 5, C series ≤ 1.5 and D series ≤0. 5 by adding 17 - 23 kg/t low aluminum ferrosilicon （Al content ≤0. 50% ） during EAF tapping, adding more 3 - 6 kg/t ferrosilicon during LF refining and controlling basicity of refining slag ≤2. 5. The molten steel produced by this deoxidation process has excellent castability being available for mass production.
出处
《特殊钢》
北大核心
2010年第3期38-40,共3页
Special Steel
