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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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FCMoldII电磁制动中磁场匹配对金属液流影响
DOI: 10.3724/SP.J.1037.2012.00093, PP. 1049-1056
Keywords: 板坯连铸,流动控制结晶器,金属流动,电磁制动,物理模拟
Abstract:
通过物理模拟实验研究板坯连铸流动控制结晶器(flowcontrolmoldII,即FCMoldII)电磁制动过程中,磁场强度和分布对结晶器内金属液流动的影响规律.实验中,以水银为模拟工质,在模型拉速为0.41,0.52和0.82m/min(分别相当于生产拉速1.00,1.30和2.00m/min),电磁制动的上区磁场强度B1=0.18,0.36和0.50T,下区磁场保持B2=0.50T不变的匹配(组合)条件下,考察结晶器(模型)内的水银流态和流速分布,并以此分析上、下区磁场强度匹配(组合)对水口出流、液面流动以及结晶器窄面模壁所受冲刷等的影响规律.结果表明,在上述拉速条件下,FCMoldII电磁制动的上、下区磁场强度匹配关系,分别取B1/B2=0.36,0.72和1.00时,结晶器中金属液的制动效果最好.
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