頂渣改質工藝對IF鋼夾雜物的影響

彭著剛; 齊江華; 楊成威

doi:10.13374/j.issn2095-9389.2018.s1.025

頂渣改質工藝對IF鋼夾雜物的影響

doi: 10.13374/j.issn2095-9389.2018.s1.025

1. 北京科技大學冶金與生態工程學院;
2. 寶鋼股份中央研究院武漢分院

詳細信息

通訊作者:
彭著剛, E-mail:pzhg005@baosteel.com

中圖分類號: TF769
計量
- 文章訪問數: 26
- HTML全文瀏覽量: 9
- PDF下載量: 0
- 被引次數: 0
出版歷程
- 收稿日期: 2018-05-08
- 網絡出版日期: 2023-07-18

Influence of slag denaturalization on inclusions in IF steel

1. School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing;
2. Wuhan Branch of Baosteel Central Research Institute

摘要

摘要: 為研究頂渣改質工藝對無間隙原子鋼 (IF鋼) 頂渣氧化性與鋼中夾雜物的影響, 在不同改質工藝中的多個位置取渣樣和鋼樣進行分析.結果表明:在氬站加入改質劑的改質效果最好.以渣中全鐵和氧化錳質量分數w (T.Fe+MnO) 表示爐渣的氧化性, 改質前后爐渣氧化性下降了8.73%.與真空循環脫氣 (RH) 脫氧合金化后和RH精煉結束后加入改質劑改質工藝相比, 氬站改質工藝條件下的中包夾雜物數量密度分別下降了38.5%和36.0%.RH精煉結束后, 鋼中夾雜物數量較少, 但在爐渣氧化性高時, 爐渣向鋼中傳氧, 使中包鋼中夾雜物上升.
- 煉鋼 /
- 無間隙原子鋼 /
- 頂渣改質 /
- 氧化性 /
- 夾雜物
Abstract: To study the influence of slag denaturalization process on the top slag oxidation and inclusions in interstitial free (IF) steel, the slag and steel samples were analyzed and taken from different positions in different slag denaturalization experiments.In the results, the best denaturalization effect is obtained by added the denaturalization agent in argon station, the slag oxidizability, indicated as the content of total Fe and MnO by mass in slag, w (T.Fe+MnO) , decreases by 8.73%.Compared with the slag denaturalization process added the denaturalization agent after RH deoxygenation-alloying and RH refining, the number density of inclusions in slag denaturalization process added the denaturalization agent in argon station is decreased by 38.5%and 36.0%, respectively.After RH refining, the number of inclusions in steel is less, but when the slag is in high oxidizability, the oxygen is transferred from slag to steel, which makes the number of inclusions in steel rise.
- steelmaking /
- interstitial free steel /
- slag denaturalization /
- oxidizability /
- inclusions

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參考文獻(14)

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