Six-stand UCM cold continuous rolling mill ultra-high-strength steel plate shape control technology
To solve the problem of poor plate shape control and unstable production of ultra-high-strength steel,a domestic steel mill built a new type of 5+1 cold rolling mill,and configured the fourth stand as a small roll diameter rolling mill,and then carried out research on the plate shape control of the new ultra-high-strength steel cold continuous rolling mill.Firstly,on the basis of analyzing the ability of the plate shape control actuator of the UCM rolling mill in the cold continuous rolling mill,the execution mode of the two-stage plate shape control system of the unit was specifically studied.Then,the control ability of the small roll diameter mill of the 4th stand and the conventional roll mill was compared and analyzed,and the conclusion was that the plate shape of the small roll diameter mill was easy to deteriorate but the bending ability was better.Finally,the cold rolling and pre-process production processes of ultra-high-strength steel were optimized and applied to on-site production.The ultra-high-strength steel plate shape control technology proposes a specific optimization method for the plate shape control in the actual production process of cold rolling and the previous process,which greatly improves the physical quality of the plate shape of ultra-high-strength steel,and has the value of further promotion and application.
small roll diameter millsshape controlroll bending utilityultra-high strength steels
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