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对550mm热轧板带轧机轧制过程中产生镰刀弯的原因进行了分析。结果表明,钢坯横向厚度差和温差、非对称轧制、轧辊两侧辊缝不同是造成带钢镰刀弯产生的主要原因。提出了相应的控制措施,改善了镰刀弯的控制效果。
The cause of sickle bending during the rolling process of 550mm hot strip mill was analyzed. The results show that the difference of transverse thickness and temperature difference of billet, asymmetric rolling and the difference of roll gap on both sides of the roll are the main causes of strip sickle bending. Put forward the corresponding control measures to improve the sickle bend control effect.