浸入式水口缺陷成因及对板坯的影响

摘要

通过分析浸入式水口缺陷产生原因及对铸坯夹杂的影响，提出了不同种类缺陷铸坯的处理措施。实践表明，浸入式水口渣线或侧孔处整齐断裂的缺陷板坯经四面火焰清理后可以正常轧制，水口断裂有裂纹及渣线处孔洞缺陷板坯应根据实际情况做相应的报废处理。%Based on the analysis of the causes of defects forming at submerged nozzle and the influence of these defects on inclusions in strands, the measures for treating different kinds of de­ fects in strands are provided. The practice shows that the slab with defects due to the slag line or side opening of submerged nozzle breaking orderly can be normally rolled after four sides flame cleaning, the slab with defects due to the nozzle break with cracks or cavities at the slag line should be correspondingly rejected according to the practice operation situation.