【作者】 吴迪； 赵宪明； 王永明； 张天绪； 徐列平； 吴章忠； 郭华； 梅东生； 覃源； 许世明；

【Author】 WU Di ZHAO Xianming WANG Yongming(Northeastern University) ZHANG Tianxu XU Lieping WU Zhangzhong(Baotou Iron and Steel (Group) Co. )GUO Hua MEI Dongsheng QIN Yuan XU Shiming(Panzhihua Iron and Steel (Group) Co. )

【机构】 东北大学； 包头钢铁(集团)公司； 攀枝花钢铁(集团)公司；

【摘要】 为了提高重轨的尺寸精度和平直度,以适应铁路提速和高速铁路建设的需求,进行了重轨的AGC热精轧定径,研制了智能化轨端数控辊式压力矫直系统和轧件平直度在线监测系统以及专家系统控制软件。对60kg/m重轨实物进行精轧和矫直的结果表明,可明显提高尺寸精度和平直度。经定高后,重轨各主要方向上的尺寸偏差小于我国现行标准的40％,弯曲量小于该标准的50％,尺寸精度和平直度均超过高速铁路用轨的TGV60标准。更多还原

【Abstract】 In order to meet the requirements of speed-up and high-speed railways, the rails were hot finishing rolled, that is controlled by an AGC system, then straightened by a numerical controlled roll-type presure straightening system with an in-line straightness system,that is specially developed for raising the size precision and straightness of the rails. The software have functions of learning and reasoning. 60 kg/m rails were rolled and straightened under those conditions. The size precision and straightness of the rails is raised evidently. The size tolerance is 40 % smaller than national standard. Such a size precision and straightness will exceed TGV60 standard.更多还原