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.
出处
《首钢科技》
2016年第1期10-16,共7页
Shougang Science and Technology
关键词
RH炉冶炼
夹杂物
洁净钢
低硫钢
RH refining, inclusion, clean steel, low sulfur steel
