METHOD AND DEVICE FOR ROLLING SHAPE STEEL

摘要

PURPOSE:To raise the production efficiency and provide a method and device desirable on the temp. conditions of material and the cost and installation space or the like of equipment by successively passing a material through a vertical mill and horizontal mill in the stage of rough rolling. CONSTITUTION:A beam blank is taken as a material (p) to be rolled and rough rolling is executed by successively repeatedly passing the material through the vertical mill 11 and horizontal mill 12. After that, finish rolling is executed by successively repeatedly passing the material through a universal mill 21 and edger mill 22 with which rolling for spreading the flange parts of the material (p) and for making the cross section into an X-shape is executed and universal mill 23 with which rolling for making the flange parts of the material (P) rectangular to the web and for making the cross section into an H-shape is executed.