...表面纵裂纹 longitudinal surface crack ; surface longitudinal crack ; Surface longitudinal crack ; surface longitudinal cracking 角部纵裂纹 longitudinal corner cracks ; longitudinal corner crack ..
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The causes of surface longitudinal cracking were analyzed. Countermeasures were put forward based on the production practices of thin slab casting and rolling at Tonghua Steel Co.
分析了连铸薄板坯表面纵向裂纹的产生原因，结合通钢薄板坯生产实际情况，提出了改进措施。
The results showed that the major cause of longitudinal surface cracking of 20 steel tube blanks was higher nonmetallic inclusion content in the steel than standard value.
结果表明： 非金属夹杂物超标是导致管坯表面产生纵向裂纹的主要原因。
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