摘要
电炉冶炼控制终点碳为0.10%~0.12%,P≤0.010%。精炼终点S≤0.020%,并喂Si—Ca线和吹氩。连铸控制中间包温度1525℃~1540℃,拉速1.8~2.0m/min,并采用结晶器电磁搅拌。试验9炉20管φ150mm圆坯化学成分(%):C0.18~0.20,Si0.20~0.26,Mn0.52~0.57,P0.012~0.016,S0.010~0.016。检验结果表明此批20管φ150mm圆坯符合YB/T5222—1993质量标准要求。
The end point C of electric finance smelting control was 0.10% -0.12%,P was less than 0.010% in EAF.The end point S was less than 0.020% in IF, with feeding Si- Ca wire and argon stirring. During continue casting the temperature of liquid steel in tundiah was 1525℃- 1540℃ ,the casting speed 1.8 - 2.0m/rain,using M- EMS.The chemical component experient 9 furnaces steel 20 # was C0.18 - 0.20,Si0.20 - 0.26,Mn0.52 - 0.57,P0.012 - 0.016,S0.010 - 0.016. The production of steel 20 # met requirement of the standard YB/T5222 - 1993.
出处
《河南冶金》
2006年第B09期119-120,共2页
Henan Metallurgy