冷弯型钢滚弯解决方案探讨

On the Solution to the Cold-bend Profiled Bar in Roll Bending

为将型钢弯制成特定的拱形,采用多辊滚弯机实现逐步成型的工艺方式来完成冷弯型钢的弯曲,达到以相对精确的曲率半径,解决传统滚弯机弯曲曲率半径R值较小,或复杂截面、不对称截面时,出现的严重变形、腹板失稳起皱等问题。同时较好的解决了冷弯型钢滚弯中回弹量控制问题。

The multiple-rolls arced bender, which bends the profiled bar to certain arch shape by the technique of gradually forming to achieve relative precision radius, has solved the problems of the severe distortion, stem unstabilized and rippling because of the tight radius, complicated and nonsymmetrical section in traditional bender. Meanwhile, it also works well on the control of the spring return of cold-bend profiled bar in roll bending.