Abstract：According to the qualitative demand of cold rolled steel 9Cr3Mo，double-skateboard slag retaining and infrared alarming apparatus were applied in converter using double slag process to control the mass of slag and contents of phosphorus and sulfur in slag. Refined slag with low melting point and excellent liquidity were obtained using the refining slag system with 40% Al2O3. In new refining slag system，oxide inclusion in steel could be decreased significantly due to elevated adsorption abilities for inclusion in steel slag. During the later stage of refining process，silica was added to regulate the basicity of slag，by which contents of titanium in steel can be controlled effectively and carbide liquid separation could be reduced productively.
王大鹏，任立坤，尹修刚，陈宏豫，. 冷轧辊钢9Cr3Mo洁净钢工艺研究[J]. 中国钢铁期刊网, 2017, 36(2): 58-61.
WANG Da-peng，，REN Li-kun，，YIN Xiu-gang，，CHEN Hong-yu，. Research on clean steel technology for cold rolled steel 9Cr3Mo. Chinese Journal of Iron and Steel, 2017, 36(2): 58-61.
2017, Vol. 36 
