摘要
渗氮钢38CrMoAl(%:0.35～0.42C、0.20～0.45Si、0.30～0.60Mn、1.35～1.65Cr、0.15～0.25Mo、0.70～1.10Al)由100 t EBT DC EAF-100 t LF-200 mm×200 mm,150 mm×150 mm方坯连铸机流程生产。通过出钢过程加60%Al,LF加40%Al,高碱度渣吹氩精炼,精炼末期喂Φ16 mm 28Ca-55Si线,加大中间包浸入式水口内径,全程保护浇铸等工艺措施成功生产出38CrMoAl钢,可连浇5炉钢,轧材总氧含量为(5～8)×10^(6),各项性能均满足用户要求。
Nitriding steel 38CrMoM （0.35-0.42C, 0.20 ～0.45Si, 0.30 ～0.60Mn, 1.35 ～1.65Cr, 0.15 ～ 0. 25Mo, 0.70 ～ 1.10A1） was produced by 100 t EBT DC arc furnace - 100 t LF - 200 mm ×200 mm, 150 mm × 150 mm billet concasting machine flow sheet. With using the technology measures such as adding 60% Al at steel tapping, adding 40% M in LF refining, refining by high basicity slag and argon blowing, feeding Φ16 mm 28Ca-55Si wire at end phase of refining, enlarging inside diameter of immerged nozzle for tundish, and whole course shield casting practice, the steel 38CrMoA1 was successfully produced with concasting 5 heats, the total oxygen content in rolled products was （5 ～ 8）×10^-6, and each property all met the requirement of customer.
出处
《特殊钢》
北大核心
2008年第4期41-42,共2页
Special Steel
