传统的圆材矫直机矫直辊的棍形是单叶旋转双曲面。这种矫直辊与被矫直的圆材工件接触时,不能沿辊子全长形成一条连续的接触线,因而对国棒、管材的弯曲度和椭圆度的矫正效果不好,并在工件表面造成螺旋形的压痕、划伤等缺陷。理想的辊形与被矫直的圆柱形工件沿辊子全长应为线接触 Conventional round bar straightener straightening roller stick is a single leaf swirled hyperboloid. This straightening roller and the workpiece is straightened round wood contact, can not form a continuous line of contact along the entire length of the roller, so the country bar, pipe bending and ovality correction effect is not good, and the workpiece surface Caused by spiral indentation, scratches and other defects. The ideal roll shape and the straightened cylindrical workpiece should be in line contact with the full length of the roll