RH純循環對Ti-IF鋼潔凈度的影響

王敏; 包燕平; 崔衡; 吳維雙; 吳華杰; 陳斌; 季晨曦

doi:10.13374/j.issn1001-053x.2011.12.016

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RH純循環對Ti-IF鋼潔凈度的影響

doi: 10.13374/j.issn1001-053x.2011.12.016

1. 北京科技大學國家板帶生產先進裝備工程技術研究中心, 北京 100083;
2. 北京科技大學冶金與生態工程學院, 北京 100083;
3. 首鋼技術研究院, 北京 100087

基金項目:

“十一五”國家科技計劃資助項目(2006BAE03A06)

詳細信息

通訊作者:
王敏,E-mail:worldmind@163.com

中圖分類號: TF769
計量
- 文章訪問數: 134
- HTML全文瀏覽量: 17
- PDF下載量: 8
- 被引次數: 0
出版歷程
- 收稿日期: 2010-10-08
- 網絡出版日期: 2021-07-30

Effect of RH pure circulation on the cleanness of titanium stabilized interstitial-free(Ti-IF) steel

1. National Engineering Research Center of Flat Rolling Equipment, University of Science and Technology Beijing, Beijing 100083, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
3. SHOUGANG Technology Research Center, SHOUGANG Corporation, Beijing 100087, China

摘要

摘要: 利用金屬原位分析儀定量分析了過程Al系夾雜的數量,并用一種深度侵蝕的方法觀察了夾雜物的三維真實形貌.對過程全氧(T.O)、[N]含量變化進行了跟蹤.通過延長RH合金化后的純循環時間對過程潔凈度進行了評價.結果表明:RH在合金化后保持8~10 min的純循環時間T.O可降低到30×10^-6以下;廢鋼加入會極大影響鋼液的潔凈度,合金化完畢后應避免廢鋼加入;加Al 5min后夾雜物數量達到最大,為7.02mm^-2,主要為大型的團簇狀夾雜,經過純循環后,夾雜物數量、尺寸均有較大的降低.
- IF鋼 /
- 煉鋼 /
- 夾雜物 /
- 氧化鋁 /
- 潔凈度
Abstract: The number of Al type inclusions was analyzed by original position statistic distribution analysis(OPA) and the three-dimensional morphologies of inclusions were observed by a special depth erosion method.Total oxygen and nitrogen during the refining process were determined.Cleanness changes of the steel were evaluated by prolonging the RH pure circulation time.It is shown that the total oxygen can be reduced to 30×10^-6 when the RH pure circulation time is 8 to 10min after alloying;the scrap steel should be adjusted before adding Al or titanium alloys,or it can influence the cleanness of the steel.The number of inclusions reaches the maximum value of 7.02mm^-2 after adding Al within 5min,with the main inclusions of cluster Al₂O₃,and the size and number of inclusions decrease significantly during RH pure circulation after alloying.
- IF steel /
- steelmaking /
- inclusions /
- alumina /
- cleanliness