Spread Formulae of Section Steel Rolling

Based on analysis of all kinds of methods that calculatal the spread of bar steel rolling,it came to the conclusion that any of them can not satisfy the needs of CAD/CAE software system. Accurate spread formulae must be studied out by experiments and regression analyses according to different roll passes and different rolling mill layout. Used this method,two groups of spread formulae are separately suitable for opentrain bar mills and doubledue wire as well as bar mills.