摘要
介绍了国内首台拥有自主知识产权的UN-200型钢轨交流闪光焊机。针对U75V钢轨,采用连续闪光焊和脉动闪光焊进行了焊接工艺对比试验,分析了采用连续闪光焊工艺焊接U75V钢轨时工艺参数调整困难的原因,在此基础上进行了脉动闪光焊工艺试验,获得了脉动闪光焊的焊接工艺参数,采用此参数进行钢轨焊接,通过了铁道部制定的标准TB/T1632—05,并已应用于无缝线路建设工程中。应用结果表明:该焊机采用脉动闪光焊工艺适合焊接U75V钢轨,焊接接头质量优良。
The first UN-200 rail AC flash butt welding machine with patent was introduced.Aiming at the U75V rail,the procedure experiment had been done to compare the continuous flash butt welding with the pulsed flash butt welding,and the reasons why the process of continuous flash butt welding was difficult to adjust had been analyzed.According to these reasons,the pulsed flash butt welding was adopted,the appropriate procedure parameters were obtained,and the technology standard of TB/T 1632-05 was met,then the welding procedure had been used in practical application.The results indicated that pulsed flash butt welding process can be adapted to weld the U75V rail with this machine,and the quality of the welded joint is fine.
出处
《焊接》
北大核心
2007年第12期33-37,共5页
Welding & Joining
