当然，次要原因的根源还在于钢水气体含量高导致铸坯存在皮下气泡。
Of course, more gas content in molten steel causes that steel billets come into being the subcutaneous bubble is also important reason.
我公司二炼钢连铸中间罐工作衬，采用硅质绝热板时，其铸坯头部皮下气泡严重。
While using silicious insulation plate as the working lining for continuous casting tundish at the 2nd Steelmaking Plant of our company, the skin blowholes occurred seriously on the head of billets.
从中间包绝热板的配方、制造技术和装砌等方面采取改进措施，可有效减少铸坯皮下气泡。
Some improvement in insulating board composition, in shaping process and lining technology can effectively reduce the skin hole.
结果表明：轮箍裂纹是由于钢锭中存在严重的皮下气泡，在轮箍热加工过程中皮下气泡处金属被氧化烧穿导致不能粘合而形成裂纹。
The result showed that the crack forming was due to the billet metal in the subcutaneous blow holes were oxidated during heating process and could not be sticked.
结果表明：轮箍裂纹是由于钢锭中存在严重的皮下气泡，在轮箍热加工过程中皮下气泡处金属被氧化烧穿导致不能粘合而形成裂纹。
The result showed that the crack forming was due to the billet metal in the subcutaneous blow holes were oxidated during heating process and could not be sticked.
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