The main function of automobile body flume is to drain rainwater from the body along the water guide flume to the outside of the car, to prevent the water from entering the car body and the sheet metal structure, to provide comfortable internal riding space and to prevent the body sheet metal from rusting too early under the action of rainwater.
车身后柱流水槽一般由后流水槽上段板，后组合灯安装板焊接形成，顶部与顶盖焊接侧面与侧围外板焊接，下部与后围板焊接，其有一定的截面形状，形成一个从顶盖沿后柱到车身底部的导水槽，在结构功能方面要求能将车身顶部的水沿该导水槽向下排出车体，保证雨水不从顶部，线束过孔及尾灯安装孔等处进入车体内部。在打开后背门的时候可以很清楚地看到整个流水槽的外观结构，因此对其外观及配合也有一定的要求。
The flow tank of the rear column of the car body is generally formed by the welding of the upper part of the back flow tank and the installation plate of the rear combination lamp, the welding of the side and the outer side of the top and the top cover, and the welding of the lower part and the rear panel. It has a certain cross-section shape, forming a water diversion tank from the top along the back column to the bottom of the car body. In terms of structure and function, the water at the top of the car body is required to be discharged downward along the water diversion tank to ensure the safety of the car body. Certificate that rainwater does not enter the interior of the car from the top, harness holes and taillight mounting holes. When the back door is opened, the external structure of the whole flume can be clearly seen, so there are certain requirements for its appearance and coordination.
一般的两厢汽车车身后柱流水槽主要由后流水槽上段板及后组合灯安装板焊接形成，上部与顶盖焊接，侧面与侧围外板焊接，底部与后围外板焊接，形成一个从顶盖沿后柱到车身底部的导水槽。雨水从顶部沿着该导水槽往下，保证雨水不进入车体内部。钣金的搭接面焊接后一般需进行涂胶处理，后背门门洞采用密封条密封，在尾灯及线束等安装孔采用凸台，密封垫圈等进行密封。
Generally, the back column flow flume of two-compartment car body is mainly formed by welding the upper part of the back flow flume and the installation plate of the rear combination lamp. The upper part and the top cover are welded, the side and the side outer plates are welded, and the bottom and thwww.jiaodaijiqi.cnwww.yanglaoyuann.cnwww.sjzbaojie.net.cnwww.wufengwantou.cnwww.wushuic
hulii.com.cnwww.wushuichul.com.cne back outer plates are welded to form a water guide flume from the top cover along the back column to the bottom of the car body. Rainwater from the top down along the guide tank, to ensure that the rainwater does not enter the interior of the car. The overlap surface of sheet metal is usually coated with glue after welding. The back door and hole are sealed by sealing strip. The installation holes of tail lamp and wire harness are sealed by convex platform and sealing gasket.
