一卷卷的成卷带钢放置在长长的装配线尾端，一些戴着安全帽的个人在闲晃，玩着手机。

Rolls of coiled steel sat near the end of a long assembly line as a few helmeted workers lounged about, playing with their mobile phones.

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介绍了莱钢1500热轧带钢厂热卷箱控制过程，包括热卷箱运行模型、自动成卷、自动开卷的控制过程。

Process of coil-box for Laiwu Steel Group's 1500-mm hot strip is described, including the oper- ating model of coil box, the control process of automatic coiling and uncoiling.

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