钙处理对无取向硅钢中非金属夹杂物的影响

特殊钢 ›› 2011, Vol. 32 ›› Issue (1): 44-47.

钙处理对无取向硅钢中非金属夹杂物的影响

张峰^1,2, 王波², 陈晓², 马志刚², 张毅³, 李光强¹

1武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室，武汉430081 ；
宝山钢铁股份有限公司,2硅钢部,3研究院，上海200941

收稿日期:2010-09-28 出版日期:2011-02-01 发布日期:2022-09-27
作者简介:张峰(1976.)，男,博士生，工程师,纯净钢冶炼和高效硅钢的开发。
基金资助:
国家"863”计划资助项目(2008AA1A108)

Effect of Calcium Treatment on Non-Metallic Inclusions in Non-Oriented Silicon Steel

Zhang Feng^1,2, Wang Bo², Chen Xiao², Ma Zhigang², Zhang Yi³, Li Guangqiang¹

1 Key Lab for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081 ；
2 Silicon Steel Branch, 3 Research Institute, Baoshan Iron and steel Co Ltd, Shanghai 200941

Received:2010-09-28 Published:2011-02-01 Online:2022-09-27

摘要/Abstract

摘要： 采用电解法和扫描电镜研究了300 t转炉-RH精炼钙处理对无取向硅钢板(%: ≤0.005C、1.2～2.2Si、0.2～0.6Mn、≤0.20P、≤0.005S、0.2～0.6Al、0～0.01Ca)中夹杂物的影响。结果表明,钢中Al含量为0.25%和0.35%时,钢中溶解氧均小于1×10^-4%,钙处理后都会产生CaS夹杂物,尤其是含0.35%Al的钢水;钙处理可以有效减少钢中的夹杂物数量,尤其是0.5μm以下的微细夹杂物数量;钙处理后夹杂物的种类以AlN、CaS为主,同时还含有少量的氧化物夹杂物以及AlN-CaS复合夹杂物,尺寸主要为1.5～5.0μm。

Abstract: The effect of 300 t converter-RH refining calcium treatment on inclusions in non-oriented silicon steel sheet (%： ≤0.005C, 1. 2 ~2. 2Si, 0. 2 ~0. 6Mn, ≤0. 20P, ≤0. 005S, 0. 2 ~0. 6 Al, 0 ~0. OlCa) has been studied by electrolysis and scanning electron microscope. Results show that with 0. 25% and 0. 35% Al content in steel, all the dissolved oxygen in liquid is less than 1 X 10^-4%, and the CaS inclusions are produced after calcium treatment, especial for the liquid containing 0. 35% Al； the amount of inclusions in steel is sharply decreased by calcium treatment process especially for less than 0. 5 μm tiny inclusions; the main inclusions after calcium treatment are AIN and CaS with minor oxide inclusions and AlN-CaS compound inclusions, and the size of most inclusions is 1. 5 ~5. 0 μm .

张峰, 王波陈晓, 马志刚, 张毅, 李光强. 钙处理对无取向硅钢中非金属夹杂物的影响[J]. 特殊钢, 2011, 32(1): 44-47.

Zhang Feng, Wang Bo, Chen Xiao, Ma Zhigang, Zhang Yi, Li Guangqiang. Effect of Calcium Treatment on Non-Metallic Inclusions in Non-Oriented Silicon Steel[J]. Special Steel, 2011, 32(1): 44-47.