论文部分内容阅读
通过分析采用QPCJ铝热焊焊接75 kg/m钢轨所存在的焊缝区应力集中,焊接预热所用燃料,寒冷气候下焊接,以及现场焊接工艺等质量问题,找出相应的对策,在降低焊缝伤损频率方面取得了满意的效果。
Through the analysis of the QPCJ aluminum heat welding 75 kg / m rails existing weld zone stress concentration, welding preheating fuel, welding in cold weather and welding quality problems on the spot to find the appropriate countermeasures in the reduction of welding Satisfactory frequency of injury has achieved satisfactory results.