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介绍了冷轧厂主轧机组打捆机生产工艺和存在的问题，针对这些问题进行的Ｓ５１１５ 系列ＰＬＣ控制改造。
The production process and existing problems of the baling machine of the main rolling mill in the cold rolling mill are introduced. The S5115 series PLC control reform is carried out in response to these problems.