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Abstract��The causes of failure in early stage of work roll and backup roll for cold mill were discussed in the paper. The main functions of automatic ultrasonic inspection system for roll and its effects on preventing early spalling of roll were demonstrated.

Key words�� backup roll for cold mill work roll for cold mill spalling crack ultrasonic detection

�ո��: 1900-01-01

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Ҧǿ;��и�. ��֧�Ź��͹��ЧԤ��ʩ[J]. �й��ڿ��, 2008, 26(5): 45-0. YAO Qiang;YUE Zhong��fu. Mechanism of Spalling of Work Roll and Backup Roll for Cold Mill and Effective Preventive Measures. Chinese Journal of Iron and Steel, 2008, 26(5): 45-0.

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http://gt.chinamet.cn/Jweb_wlcs/CN/ �� http://gt.chinamet.cn/Jweb_wlcs/CN/Y2008/V26/I5/45

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