Abstract：The article discusses hard-line steel’s production technology in the NO.2 Steel Roll Factory of Tang Steel. Through taking some measures such as increasing content of Mn/Si in molten steel, molten steel’s calcium-treament, low soft argon gas mixing after LF Furnace finishing refining, etc, the clogging problem which has appeared since last March when casting hard-line steel is resolved. It also improves the molten steel’s castability, ensures molten steel’s normal casting and gets high quality casting blank.
2011, Vol. 46 
