It has been analysed the causes for the heavy surface spalling of back-up roll for a finishing mill. The result shows that the main causes are gas hole, shrinkage and bad heat treatment.
对连轧机精轧支承辊大面积剥落的原因进行了深入的分析，结果表明，轧辊内部的缩孔、气泡及热处理不当是造成轧辊表面剥落的主要原因。
It has been analysed the causes for the heavy surface spalling of back-up roll for a finishing mill. The result shows that the main causes are gas hole, shrinkage and bad heat treatment.
对连轧机精轧支承辊大面积剥落的原因进行了深入的分析，结果表明，轧辊内部的缩孔、气泡及热处理不当是造成轧辊表面剥落的主要原因。
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