Abstract: ［Objective］ To address the issue of low paint transfer efficiency in the automobile painting process.［Methods］ Using a mass production painting line as a platform，a high transfer efficiency（high TE） spraying system with external clearcoat spraying was employed for trial sprayverification. By optimizing spraying trajectories and adjusting process parameters，the improvement effects on spraying quality，energy consumption，and paint unit consumption were evaluated.［Results］ The high transfer efficiency spraying technology significantly improved paint transfer efficiency.Compared with conventional electrostatic spraying technology，paint unit consumption was reduced by 15%，spray booth air velocity was decreased by 30%，and the transfer efficiency was 90. 2%. Thespraying quality met the requirements for mass production.［Conclusion］This technology represents an effective path for cost reduction，efficiency improvement，and green manufacturing in automobile painting，and holds great potential for large-scale promotion.

Key words: automotive painting, transfer efficiency, clearcoat, air velocity

摘要： 【目的】解决汽车涂装喷涂工序上漆率偏低的问题。【方法】以量产涂装线为载体，采用清漆外喷高上漆率喷涂系统开展试喷验证，通过优化喷涂轨迹与调整工艺参数等，评估其对喷涂质量、能耗、涂料单耗的改善效果。【结果】高上漆率喷涂技术可显著提升涂料附着效率，实现单车清漆用量降低 15%，喷房风速下调 30%，上漆率达 90. 2%，喷涂质量满足量产要求。【结论】该技术是汽车涂装降本增效、绿色制造的有效路径，具备大规模推广价值。

关键词: 汽车涂装, 上漆率, 清漆, 风速

CLC Number: 

• TQ639