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本文对鞍钢冷轧厂增建平整机的选型提出了商榷性的意见,推荐采用大辊径二辊拉直式恒延伸异步平整机。该机型具有普通平整机带钢直通的长处,同时还具有PV-E型异步轧机恒延伸的优点。因此该机型易于平整薄规格带钢,平整的带钢平直板形好,表面光洁度高以及设备简单、操作方便、投资少。该机型在工作辊与开卷机、卷取机之间分别设置有S辊,其S辊位于可回转的框架上,并使前S辊的速度等于带钢的入口速度,后S辊的速度等于带钢的出口速度,该装置起到了厚度自动控制系统的作用,保证了恒延伸,确保全部厚度带钢的平整质量;对于带钢厚度等于或大于0.5毫米时尚可用半异步平整。
In this paper, Anshan Iron and Steel Co., Ltd. cold rolling mill to increase the selection of smoothing machine proposed a deliberation opinion, recommended the use of large roll diameter two roller straightening constant elongation asynchronous machine. The model has the advantages of normal straight steel strip straight, but also has PV-E-type asynchronous mill constant extension of the advantages. Therefore, this model is easy to form a thin strip of steel, smooth flat strip shape, surface finish and equipment is simple, easy to operate, less investment. The machine is provided with S roller between the work roll and the uncoiler and the coiler, the S roll is located on the revolving frame, the speed of the front S roll is equal to the inlet speed of the strip and the speed of the rear S roll Equal to the exit speed of the strip, the device functions as an automatic thickness control system to ensure a constant extension to ensure the smooth quality of the strip with full thickness. Semi-asynchronous smoothing is also available for strip thickness equal to or greater than 0.5 mm.