Technology of Process and Equipment for Continuous Casting Heats Improvement With Square/Round Caster
CHEN Tian-ming1,CHEN Yong1,CHEN Liang1,LI Jian-quan2, YANG Wen-zhong2,PAN Hong1
（1. Pangang Group Research Institute Co., Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China 2. Pangang Group Panzhihua Steel and Vanadium Co., Ltd., Panzhihua 617062, Sichuan, China）
Abstract：The square/round billet caster of Pangang Group Panzhihua steel and vanadium Co., Ltd. had been operation in mid-October 2009. The steelmaking production organization was affected by less continuous casting heats of one tundish at initial time of the operation. Reasons of nozzle clogging for aluminium killed steel in continuous casting process were analyzed, in order to solve these problems, some countermeasures such as deoxygenation process optimization, inclusions modification, nozzles optimization in secondary cooling zone, and straightening and withdrawal process improvement were carried out. Industrial tests show that the castability and casting speed is improved obviously, and rate of break off caused by nozzle clogging for aluminium killed steel continuous casting is reduced from 12.9% to 2.0%. Moreover, 7-10 heats molten steel can be continuously cast in a single tundish, which is better than 4-5 heats before optimization for aluminum killed steel; and for silicon killed steel, 8-14 heats can be continuously cast in a single tundish, which is better than 6-9 heats before optimization. With this study, smooth continuous casting process can be ensured, and meanwhile, it can meet the requirement of cost reduction.
陈天明，陈永，陈亮，黎建全，杨文中，潘红. 提高方圆坯铸机连浇炉数的工艺及装备技术[J]. 钢铁, 2014, 49(2): 34-39.
CHEN Tian-ming,CHEN Yong,CHEN Liang,LI Jian-quan, YANG Wen-zhong,PAN Hong. Technology of Process and Equipment for Continuous Casting Heats Improvement With Square/Round Caster. Iron and Steel, 2014, 49(2): 34-39.
Leslie W. Niemi．PapCal-Advanced Calcium Wire Injection Technology．Speech on Refining and calcium treatment technology，2008:87.(Leslie W. Niemi．PapCal-Advanced Calcium Wire Injection Technology．炉外精炼钢包钙处理技术研讨会演讲论文，2008：87.)
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Leslie W. Niemi．PapCal-Advanced Calcium Wire Injection Technology．Speech on Refining and calcium treatment technology，2008:87.(Leslie W. Niemi．PapCal-Advanced Calcium Wire Injection Technology．炉外精炼钢包钙处理技术研讨会演讲论文，2008：87.)
2014, Vol. 49 
