关键词: 长头卡车；淋雨试验；驾驶室漏雨点；原因分析；整改措施

Abstract: In order to solve the 14 rain leakage problems found in the rain test of the cab of the newly developed heavy-duty long-head truck, the causes of water leakage at the rain leakage point were deeply analyzed, and the rectification measures were formulated from the two aspects of design change and process breakthrough. The actual verification showed that the improvement effect of rain leakage point was remarkable, which improved the rain proof and sealing performance of products, and laid a solid foundation for the finalization and mass production of subsequent models. At the same time, the formed rectification measures can provide reference for the improvement of rain proof and sealing performance of similar products in the automotive industry.

Key words: Long-head truck; Rain test; Cab rain leakage point; Cause analysis; Rectification measures