Abstract: The theoretical computational method of the shape standard curve of strip mills is proposed by using the shape forecast model and the shape discrimination model. The idea or principle of this method is that the strip crown is eliminated furthest, the good shape is obtained simultaneously and the final pass shape closes to the best also, the whole aim is the realization of the comprehensive optimum control of shape and crown. Taking 1 220 mm five-stand cold strip rolling tandem mills and five-pass rolling of 900 mm single stand cold strip rolling mill as examples, the rolling computations of convex strip and concave strip are done respectively, the computational results prove the validity of the theoretical analysis and the computation This theoretical computational method of the shape standard curve can lay the foundation for the theoretically quantitative research on shape standard curve.

Key words: Crown, Shape, Shape discrimination, Shape forecast, Shape standard curve, Strip element method, Strip rolling