焊接是铁路运输工业企业的最重要的生产工序之一。其主要的工作量是在机车车辆修理及备件的生产上。焊接广泛地应用于装货口盖、敞车端门、棚车滑门的生产上，同时还应用在车辆改造中由金属面板取代木质面板的过程中。那些企业生产的非常重要和消耗大量金属的产品，如驼峰车辆 Welding is one of the most important production processes for railway transport industry. Its main workload is in locomotive and vehicle repair and spare parts production. Welding is widely used in the production of cargo port covers, gondola doors and box sliding doors, as well as the replacement of wood panels with metal panels in vehicle retrofits. Those businesses produce very important and expensive metal products such as hump vehicles