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lian zhu pi de ban hong guan pian xi
Author(s): 
Pages: 74-75
Year: Issue:  3
Journal: Research on Iron and Steel

Keyword:  宏观偏析连铸坯凝固组织微观偏析偏析率钢板质量调查研究凝固收缩偏析程度偏析度;
Abstract: <正> 1.序言现已查明,在连铸坯轴心部位存在的偏析中,历来认为不成问题的小型偏析(半宏观偏析),也是妨碍钢板质量均质性的重要因素。因此,人们开始重视半宏观偏析问题,并对连铸条件、凝固组织的影响和偏析程度等进行了调查研究。半宏观偏析主要是伴随凝固收缩而形成的高浓度液相的流动、积聚凝固而产生的。它的大小介于宏观偏析和微观偏析之间。
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