Study On Models And Industrial Application Of Strip Crown And Shape Setting Control On Medium Breadth Hot Strip Mill

Strip shape is an important quality indicator of strip products, the strip shape control is a very important part of the quality assurance system. In order to meet the modern strip production of high quality and high productivity, shape control requires not only high precision, but also have strong online adjustable.Shape deformation of rollers is an important part of the shape theory, accurately calculate the roll elastic deformation is one of the prerequisites to achieve a good shape control. Strip crown and shape by many complex factors after rolling such as the distribution of rolling force, incoming shape condition, roll position(original roller-type, thermal crown, wear, etc.), metal flow , the tension between the rack and so on. The majority of factors changing during the rolling process, and can not line detection. Therefore, according to the physical process of rolling, establish a correct and reasonable mathematical model is precondition to improve the accuracy of the shape precision set system.Pass a research detection currently a lot of important plank form theory problem and engineering actual problems all adoption influence the function method and number compute the flexibility of the method processing Ya Gun to transform. These two kinds of calculate ways because of its existence a great deal of Die the generation compute, as a result computing time is longer, can not satisfy an on-line enactment system's request for time of calculation. On this foundation, transform a theory through research and various analytical existing flexibility of Ya Gun, this literary grace is used to analyze a calculate way assumption Gun to indirectly touch pressure to distribute a form to build up Gun to fasten flexibility to transform model thus. Then pass and the ratio of existing model to, choose that a quite the cheese pressure distributes a form and then builds up new plank form calculation model. Will aim at the breadth plank in the domestic at last the heat connect the present condition of mill currently, establishment curved Gun dint enactment calculation model, and carry on industry experiment. Pass to measure towards computing a convex degree of time and plank actual, express this curved Gun dint enactment calculation the model can satisfy an industrial on-line applied demand, and can promise hot mill take convex degree of the plank of steel and plank form quality.