IF钢RH精炼过程合金损失行为研究  

Study on alloy loss behavior of IF steel during RH refining

作　　者：龚俊健 张超杰 王海川 蒲春雷[1,2] GONG Junjian;ZHANG Chaojie;WANG Haichuan;PU ChunLei(HUATIAN Engineering&Technology Corporation,MCC,Nanjing 210019,China;School of Metallurgical Engineering,Anhui University of Technology,Ma’anshan 243002,China)

机构地区：[1]中冶华天工程技术有限公司,江苏南京210019 [2]安徽工业大学冶金工程学院,安徽马鞍山243002

出　　处：《现代交通与冶金材料》2022年第4期86-91,共6页Modern Transportation and Metallurgical Materials

基　　金：国家自然科学基金资助项目(52104317,51874001)。

摘　　要：为提高合金收得率节约炼钢成本,针对汽车板深冲用IF钢RH精炼过程锰铁和钛铁合金的损失行为展开了研究。探索了锰铁和钛铁合金在上料运输过程的粉化行为,发现锰铁和钛铁上料过程中产生的粒度小于1 mm的粉末比例分别为3.1%和0.17%。计算了粉末合金在加入RH真空室的过程中被向上运动气流带入到真空管道发生损失的临界粒度。探索了RH精炼渣对合金收得率的影响,结合锰铁和钛铁合金加入钢液后的运动轨迹分析,发现大块钛铁加入RH钢水后容易上浮到钢渣界面发生烧损。In order to improve alloy yield and save steelmaking cost,the loss behavior of ferromanganese and ferrotitanium alloys in RH refining process of IF steel for deep drawing of automobile plate was studied in this paper.The pulverization behavior of ferromanganese and ferrotitanium alloys during loading and transportation was explored.It was found that the proportion of powder with particle size less than 1 mm produced in the loading process of ferromanganese and ferrotitanium was 3.1%and 0.17%,respectively.The critical particle size loss of powder alloy brought into the vacuum pipe by upward flowing air flow in the process of adding RH vacuum chamber was calculated.The effect of RH refining slag on alloy yield was explored.Combined with the analysis of the motion trajectory of ferromanganese and ferrotitanium alloy after adding into liquid steel,it was found that large ferrotitanium was easy to float up to contact with the steel slag and burn after adding RH molten steel.

关 键 词：RH精炼 IF钢 合金 锰铁 钛铁 

分 类 号：TF769.9[冶金工程—钢铁冶金]