敞车作为铁路货运的主要车型,其腐蚀已引起人们的注意。据有关资料介绍,厂修时每辆敞车因腐蚀过限而需要截换的钢材平均为800公斤。C_(62)型敞车,在第一个厂修时,铁地板因腐蚀破坏至少要换新30％,严重的腐蚀使厂修期提前了一、二年,个别的甚至要提前三年。由于腐蚀,维修截换量增加, Gondola, as the main model of railway freight, has caused people’s attention for its corrosion. According to the relevant information, the average steel weight of each gondola that needs to be intercepted due to the corrosion limit is 800 kg. C_ (62) gondola, the first factory repair, the iron floor due to corrosion damage at least 30% for new, serious corrosion to the factory repair one or two years earlier, some even three years in advance. Due to corrosion, the amount of maintenance interception increased,