1　概述P6 5型棚车作为客、货两用的新型铁路运输车辆 ,其车窗主要起通风作用。原来的P6 0 型和P6 1型棚车车窗结构为推拉式 ,防盗性能不好 ,车窗板易丢失 ;而P6 2 型棚车车窗结构为通风口罩式 ,通风性能不理想 ,而且沙尘易侵入。P6 5型棚车在这两方面做了改进 ,采用了原苏联棚 1 Overview P6 5-type box-type passenger and cargo as a new type of railway vehicles, the windows mainly from the role of ventilation. The original P6 0 and P6 1 type box car window structure for the push and pull, anti-theft performance is not good, easy to lose the window panel; and P6 2 box car window structure for the ventilation hood, ventilation performance is not ideal, and easy to dust Invaded. P6 5 box car made improvements in these two areas, using the original Soviet shed