C型地铁RT焊缝焊接技术研究

The C Subway RT Weld Welding Technology Research

铝合金不仅应用于航空航天器材,在汽车、轨道交通车辆、船舶及金属结构等领域也在不断增加应用比例。中车唐山机车车辆有限公司近期在生产c型地铁铝合金底架过程中由于结构原因涉及到RT焊缝的焊接,对于这种高质量高要求的焊缝来说,无论从焊前准备到焊接过程的控制以及参数的设置等与一般焊缝相比将更严格仔细。针对C型地铁底架结构和焊缝形式的特点,如何能够保证每条RT焊缝焊后高质量、高效率、无返修成为关键。基于此,总结底架RT焊接接头质量的提高和操作方法,为今后类似焊接结构提供可靠的焊接依据。

Aluninum alloy was used in aerospace equipment, and in automobile, ra il tranist vehicles, shipsand application structure, and the application of other fields is also increasing. Manufacturing TechnicalCenter, CRRC TANGSHAN Co. Ltd. recently in production of C Type Metro aluminum alloy chassis in theprocess because of structural reasons related to RT weld welding for the high quality and high requirementsof the weld, the control of the welding process and the parameters of the welding process w ill bemore rigorous than the general weld. For type C subway chassis structure and the characteristics of weldform, how to guarantee each RT weld after welding of high quality, high efficiency, and small amount of repairwas the key peoblem. Based on this, undeiframe RT weld jo in t quality improvement and operationmethod were summarized, to provide reliable welding evidence for sim ilar welding structure in the future.