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22型客车较旧型客车有很大的改进,历年来又不断提高技术水平,受到使用部门的欢迎。但由于各种原因,车体钢结构锈蚀严重,中、侧梁下垂,检修用料和劳动量远大于21型等客车。这些年来,因各厂对22型客车结构和设备件的设计多不统一,路局和工厂要求改进和定型。1972年11月,部组织有关厂、所、院、校进行调查,搜集了铁路运
Compared with the older passenger cars, the 22 bus has been greatly improved over the years to continuously improve the technical level, welcomed by the user departments. However, due to various reasons, the car body steel corrosion serious, medium and side beams droop, maintenance materials and labor is much larger than the type 21 and other passenger cars. In recent years, the bureau and the factory have requested improvements and stereotypes due to the inconsistencies in the design of the 22-bus structure and equipment of each plant. November 1972, ministries and organizations related to factories, institutes, schools to investigate and collect rail transport