新型Al基復合脫氧劑脫氧效果研究

王唐林; 宋波; 宋明明; 陳毛川; 毛璟紅

doi:10.13374/j.issn2095-9389.2015.05.005

新型Al基復合脫氧劑脫氧效果研究

doi: 10.13374/j.issn2095-9389.2015.05.005

王唐林^1,2,3,4,
宋波^1,2, ,,
宋明明^1,2,
陳毛川^1,2,
毛璟紅⁴

1. 北京科技大學鋼鐵冶金新技術國家重點實驗室, 北京 100083;
2. 北京科技大學冶金與生態工程學院, 北京 100083;
3. 鞍鋼集團釩鈦(鋼鐵)研究院攀鋼集團研究院有限公司, 攀枝花 617000;
4. 北京科技大學材料科學與工程學院, 北京 100083

基金項目:

中央高校基本業務科研費資助項目(FRF-SD-12-010A,FRF-SD-12-002B)

詳細信息

通訊作者:
宋波,E-mail:songbo@metall.ustb.edu.cn

中圖分類號: TF704.1
計量
- 文章訪問數: 357
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- PDF下載量: 13
- 被引次數: 0
出版歷程
- 收稿日期: 2013-12-26
- 網絡出版日期: 2021-07-10

Deoxidization effect research of a new Al based complex deoxidizer

WANG Tang-lin^1,2,3,4,
SONG Bo^{1,2
, ,},
SONG Ming-ming^1,2,
CHEN Mao-chuan^1,2,
MAO Jing-hong⁴

1. State Key Laboratory of Advanced Metallurgy, 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. Ansteel Research Institute of Vanadium & Titanium (Iron & Steel) Pangang Group Research Institute Co., Ltd., Panzhihua, 617000, China;
4. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: Al作為煉鋼脫氧劑單獨脫氧時易燒損,導致利用率較低;同時,其脫氧產物Al₂O₃熔點高,形狀不規則,不易在脫氧過程中上浮排出,造成水口堵塞,惡化鋼材質量.為了提高鋁的脫氧效率,同時使脫氧產物Al₂O₃能快速從鋼液中上浮排出,本文研究了一種以金屬鋁為有效脫氧組分,低熔點氧化物渣系為載體的新型復合脫氧劑.實驗表明,使用該脫氧劑不僅可以保證鋼液中溶解氧的質量分數在10×10^-6以下,而且脫氧后鋼中Al₂O₃夾雜物與純Al脫氧相比尺寸更小、數量更少,較顯著地提高了鋼材的純凈度,具有良好的脫氧效果.
- 煉鋼 /
- 脫氧劑 /
- 鋁 /
- 脫氧 /
- 氧化鋁夾雜
Abstract: As a deoxidizer for steelmaking,Al has a problem of oxidation loss when it is added into liquid steel,which leads to a lower utilization rate of Al. At the same time,the high melting point and irregular shape of the deoxidization products make it difficult to remove Al₂O₃ inclusions from molten steel effectively,which causes nuzzle clogging and steel quality deteriorative. A new kind of complex deoxidizer which takes Al as the effective deoxidization component and a low melting point slag including Al₂O₃-SiO₂-MgO-CaO as the carrier was investigated to improve the deoxidization utilization rate of Al and make the deoxidization products eliminate quickly from molten steel. Experiment results showed that the complex deoxidizer not only guaranteed the dissolved oxygen content in molten steel below 10×10^-6,but also made the deoxidization inclusions fewer and smaller. Compared with Al deoxidization,the purity of steel was significantly improved and an excellent deoxidization effect was presented.
- steelmaking /
- deoxidizers /
- aluminum /
- deoxidization /
- alumina inclusions