Mold fluxes of peritectic steel for wide and thick slabs

BA Jun-tao; WEN Guang-hua; TANG Ping; ZHAO Yan-hong; CHI Jing-hao; ZHI Jian-jun; XU Guo-dong

doi:10.13374/j.issn1001-053x.2009.06.005

Volume 31 Issue 6

Aug. 2021

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Article Navigation > Chinese Journal of Engineering > 2009 > 31(6): 696-700

BA Jun-tao, WEN Guang-hua, TANG Ping, ZHAO Yan-hong, CHI Jing-hao, ZHI Jian-jun, XU Guo-dong. Mold fluxes of peritectic steel for wide and thick slabs[J]. Chinese Journal of Engineering, 2009, 31(6): 696-700. doi: 10.13374/j.issn1001-053x.2009.06.005

Citation:

BA Jun-tao, WEN Guang-hua, TANG Ping, ZHAO Yan-hong, CHI Jing-hao, ZHI Jian-jun, XU Guo-dong. Mold fluxes of peritectic steel for wide and thick slabs[J]. Chinese Journal of Engineering, 2009, 31(6): 696-700. doi: 10.13374/j.issn1001-053x.2009.06.005

Citation:

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Mold fluxes of peritectic steel for wide and thick slabs

doi: 10.13374/j.issn1001-053x.2009.06.005

1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;
2. Steelmaking Department, Baoshan Iron and Steel Co. Ltd., Shanghai 201900, China

Received Date: 2008-07-07
Available Online: 2021-08-09

Abstract

Abstract

According to the solidified characteristic of peritectic steel for wide and thick slabs, mold fluxes with high basicity, high crystallization rate, low crystallization temperature and low heat flux density were developed and experimentally studied on 3^# Caster at BaoSteel. The trial results of 4 casting times showed that experimental strands produced with the developed mold fluxes had not surface longitudinal cracks, but the surface longitudinal crack ratio of strands produced with original mold fluxes was 5%. The developed mold fluxes can prevent surface longitudinal cracks in wide and thick slabs effectively.
- mold fluxes,
- slag film,
- surface longitudinal crack,
- heat flux density,
- crystallization rate,
- crystallization temperature