| 摘要 |
PURPOSE:To improve the fluting resistance of a steel strip for surface treatment by specifying the diameter of work rolls and temper rolling elongation in the stage of subjecting the annealed steel strip to temper rolling with a temper rolling mill having bright rolls without using a lubricating agent. CONSTITUTION:The annealed steel strip for surface treatment such as tin plate or tin-free steel is subjected to temper rolling with the temper rolling mill having the bright rolls (about <=0.2mumRa surface roughness) without using the lubricating agent. The work rolls having <=250mm, more preferably <=200mm diameter are used for the temper rolling mill and the temper rolling elongation is set at >=0.2% and <=2.0%, more preferably 0.5-1.6%. The fluting resistance is thus improved regardless of the components, hot rolling conditions and annealing conditions of the steel strip.
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