鋼液中夾雜物粒徑與全氧的關系

王敏; 包燕平; 趙立華; 林路; 楊荃

doi:10.13374/j.issn2095-9389.2015.s1.001

鋼液中夾雜物粒徑與全氧的關系

doi: 10.13374/j.issn2095-9389.2015.s1.001

王敏^1,2, ,,
包燕平^1,3,
趙立華³,
林路^1,2,
楊荃²

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

基金項目:

“十二五”國家科技支撐計劃資助項目(2012BAF04B02)

鋼鐵冶金新技術國家重點實驗室開發基金資助項目(KF13-09)

教育部博士點專項基金資助項目(20130006110023)

中央高校基本科研業務費項目(FRF-TP-14-125A2)

詳細信息

通訊作者:
王敏,E-mail:worldmind@163.com

中圖分類號: TF762+.5
計量
- 文章訪問數: 392
- HTML全文瀏覽量: 127
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- 被引次數: 0
出版歷程
- 收稿日期: 2015-01-06
- 網絡出版日期: 2021-07-17
- 刊出日期: 2021-07-17

Relationship between the size of inclusions in steel and total oxygen(T.O)

WANG Min^{1,2
, ,},
BAO Yan-ping^1,3,
ZHAO Li-hua³,
LIN Lu^1,2,
YANG Quan²

1. State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing, Beijing 100083, China;
2. National Engineering Research Center of Flat Rolling Equipment, University of Science and Technology Beijing, Beijing 100083, China;
3. School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 研究了鋼中夾雜物粒徑、分布狀態與全氧的對應關系,并探討了大顆粒夾雜物含量與試樣中全氧波動的相關性,量化了全氧檢測法對潔凈度的評價,結果表明:(1)鋼中單位體積內夾雜物數量隨粒徑增大呈指數下降,粒徑小于10μm夾雜物占總夾雜物數量的95%以上,夾雜物在鋼中分布的均勻性隨夾雜物粒徑增大而降低;(2)鋼中粒徑小于10μm夾雜物中含氧量與鋼中平均全氧有很好對應關系,全氧可以反映鋼中分布均勻的夾雜物水平;(3)鋼中大顆粒夾雜物越多,同一試樣中全氧多次檢測結果的波動越大,全氧的波動可以反映鋼中大顆粒夾雜物的含量.
- 夾雜物 /
- 粒徑分布 /
- 全氧 /
- 潔凈度
Abstract: The relationship between the size distribution of inclusions and the total oxygen in steel was studied by following the inclusions' size and number of the samples at different locations. The content of macro-inclusions in liquid steel could be estimated accurately by the fluctuation of total oxygen in the same sample,which quantified the cleanliness evaluation index. The number of inclusions per unit volume decreased exponentially with the increase in sizes. Also,the distribution uniformity of inclusions in steel worsened as the size increased. Thus,micro-inclusions with the size below 10 μm occupied above 95% of total inclusions in the liquid steel,which showed a good relationship between the measured value of total oxygen and the integration oxygen in micro-inclusions.Total oxygen could represent the uniform distribution level of inclusions in steel; good uniform of inclusions in steel meant small fluctuation. Macro-inclusions could result in the fluctuation of total oxygen. Large fluctuation of total oxygen reflected a high amount of macro-inclusions in steel.
- inclusions /
- particle distribution /
- total oxygen /
- cleanness