1. College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China 2. Department of Continuous Casting,CISDI Engineering Co.,Ltd.,Chongqing 400013,China 3. Technology Center,Xinyu Iron and Steel Group Co.,Ltd.,Xinyu 338001,Jiangxi,China)
Abstract:The characteristic differences between traditional mold fluxes for medium or thick slabs continuous casting and ultra-thick slabs continuous casting were analyzed based on the technological characteristics of ultra-thick slabs casting. Then,the systematization of mold fluxes was conducted after the discussion of solidification features of for different grades,and three mold flux groups were proposed:high carbon steels,peritectic steels and micro alloying steels with medium carbon content. Based on the classification,the control ranges of melting temperature、viscosity、break temperature and crystallization ratio of mold fluxes were put forward. Commercial production data reveals that with proposed mold fluxes,smooth and stable casting can be obtained and no sintering is observed. The thickness of liquid slag layer and consumption are suitable. The surface quality of slabs is perfect and the continuous casting process is smooth.
收稿日期: 2015-06-25
出版日期: 2016-03-18
引用本文:
朱礼龙,何生平,毛敬华,赵和明,韩志伟,王 谦. 特厚板连铸保护渣系列规划[J]. 钢铁, 2016, 51(3): 44-48.
ZHU Li-long,HE Sheng-ping,,MAO Jing-hua,ZHAO He-ming,HAN Zhi-wei,WANG Qian. Systematization of mold fluxes for ultra-thick slab continuous casting. Iron and Steel, 2016, 51(3): 44-48.
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