攀钢集团北海钢管有限公司日前采用国内首创的“辊式冷弯成型工艺”,成功批量试生产出汽车底盘车架纵梁,并直接供给了国内几家汽车公司制造重型汽车。国内加工车架纵梁的传统设备和生产工艺存在工艺性能较低、产量低、尺寸精度较差、长度调整不灵活以及容易冲裂板材和产品转型 Panzhihua Iron and Steel Group Beihai Pipe Co., Ltd. recently adopted the first domestic “roll cold forming process,” the success of a large number of trial production of chassis car chassis rails, and directly supplied to several domestic automobile companies manufacturing heavy vehicles. The traditional equipment and production process of the domestic processing frame longitudinal beam have the following disadvantages: low process performance, low output, poor dimensional accuracy, inflexible length adjustment, and easy to break plate and product transformation