摘要
通过选用含碳量较高的结晶器保护渣 ,降低钢水过热度和二冷区的比水量 ,并使Mn S >5 ,显著降低了 0 .4 5C 1.0Mn 0 .2 0S(Y4 5S2 0 )易切削钢 15 0mm× 15
The surface and internal crack occurred rate for 150 mm×150 mm concasting billet of 0.45C 1.0Mn 0 20S (Y45S20) free cutting steel decreased obviously by using mould shielding flux with higher carbon content, decreasing metal overheating degree and water rate for secondary cooling zone, and controlling Mn/S no less than 5.
出处
《特殊钢》
北大核心
2003年第3期52-53,共2页
Special Steel
