METHOD OF Z-TYPE BENT SHAPES PRODUCTION Russian patent published in 1996 - IPC

FIELD: metallurgical, transportation and agricultural mechanical engineering, production of Z-type bent shapes of rolling products with final angles of bending exceeding 90 deg. SUBSTANCE: bending of members along runs is exercised during planoparallel motion of racks in respect to each other simultaneously with wall turning around axis of shaping passing through wall gravity center. Wall turning is made in direction opposite to direction of seats bending by angle equal to angle of seats bending in the run. In runs before finishing seats are bent by radius and the straitened. Straitening is exercised during bent parts motion between wall and seats in mutually opposite directions till achievement of given position. EFFECT: improved process. 2 dwg