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为了提高中厚板成材率,改善钢板板形,减少中厚板的切边、切头、切尾量,湘潭钢铁集团有限公司5 m宽厚板厂在传统的立辊轧制工艺基础上成功开发并应用了立辊轧制新工艺,在展宽阶段及精轧阶段均使用立辊分别对板坯头尾和边部进行修正轧制,在最后一个偶数道次进行定宽轧制,并投入立辊短行程功能。新工艺和相应控制在PLC程序中编程实现,有效改善了板形,减少了切损,明显提高了钢板的成材率。
In order to improve the yield of plate, to improve the plate shape, reduce plate trimming, cutting, tail cut, Xiangtan Iron and Steel Group Co., Ltd. 5 m heavy plate mill in the vertical rolling process based on the successful development The new technology of vertical roll rolling was applied. During the widening stage and the finish rolling stage, both the head and the tail of the slab were trimmed and rolled by the use of vertical rollers. The width and width of the slab were fixed and width rolled at the last even number of passes. Roller short stroke function. The new process and the corresponding control programming in the PLC program to effectively improve the shape of the plate, reducing the cut, significantly improve the rate of sheet metal.