中梁裂损是货车“五害”之一,由于中梁裂损容易造成行车事故,直接威胁着行车安全。为了弄清C_(50)型敞车中梁裂纹的主要原因。我们于1984年1～9月对列检检查发现的中梁裂纹的车辆进行了调查分析,简单介绍如下。 Cracking of the middle beam is one of the “five hazards” of the truck. As a result of the crack in the middle beam, traffic accidents are easily caused, which directly threatens the driving safety. In order to understand the C_ (50) gondola cracks in the main reason. From January to September 1984, we conducted a survey and analysis of the vehicle with a cracked mid-beam found during the inspection and the brief introduction is as follows.