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连铸板坯中心(厚度方向)存在的中心偏析常常导致因氢作用引起输送天然气的管线发生裂纹,或者阻碍海洋结构钢材的可焊性,因此在连铸过程中,减少铸坯的中心偏析和点状偏析是连铸工艺的主要技术课题之一。
Centrifugal segregation in the continuous casting slab center (thickness direction) often leads to cracking of the pipeline transporting natural gas due to hydrogen or hinders the weldability of the marine structural steel. Therefore, in the continuous casting process, the center segregation of the slab is reduced and Pitting segregation is one of the main technical issues of continuous casting process.