低硫钢的RH炉冶炼工艺研究  

RH Process Study on Smelting Low-Sulfur Steel

作　　者：张宏艳[1] 王志鹏[1] 景财良[2] 郭小龙:[2] 

机构地区：[1]首钢技术研究院 [2]首钢京唐钢铁联合有限责任公司

出　　处：《首钢科技》2016年第1期10-16,共7页Shougang Science and Technology

摘　　要：采取KR脱硫、转炉回硫控制和出钢渣洗脱硫工艺，首钢京唐公司实现了采用RH炉冶炼低硫钢。试验结果表明，无需LF炉二次脱硫即可实现钢中硫含量不大于0．0080％的产品质量要求，钢水洁净度得到提高，RH炉冶炼工艺下钢水全氧含量平均为0．0010％，氧化物类夹杂物尺寸得到有效控制。生产中将硅钙线加入量提高到0．9kg／t后，钢中未发现大尺寸MnS夹杂物。With KR desulfurization, sulfur control in converter and desulfurization during tapping, low-sulfur steel could be produced with RH refining process in Shougang Jingtang company. The results show that sulfur content of steel is less than 0. 008 0% without LF treatment. The cleanliness of molten steel produced in this process is improved, T. O content is limited within 10ppm and oxide inclusion size is controlled effectively. There is no large MnS inclusion in steel molten with the Ca-Si wire addition up to 0. 9 kg/t.

关 键 词：RH炉冶炼 夹杂物 洁净钢 低硫钢 

分 类 号：TF764.1[冶金工程—钢铁冶金]