[目的]研究汽车涂装磷化工艺中磷化渣的高效处理途径，旨在优化除渣过程，提升除渣系统效能。[方法]引入气动隔膜泵替代传统磷化除渣系统中的电动离心泵，并通过量化出渣量及检测槽液磷化渣含量，验证改进效果。[结果]气动隔膜泵的应用显著促进了磷化渣向沉降槽的转移，除渣效率相较于原系统提升近一倍，有效降低了磷化槽内磷化渣的残留。[结论]采用气动隔膜泵替换电动离心泵可大幅提升磷化除渣系统的工作效率，显著减少槽液中的磷化渣，在保障车身涂装品质的同时，降低设备维护成本。

[Objective] The efficient treatment methods for phosphating sludge produced from phosphating process in automotive painting was investigated, aiming to optimize sludge removal procedures and enhance the performance of the sludge removal system. [Method] A pneumatic diaphragm pump was introduced to replace the traditional electric centrifugal pump in the phosphating sludge removal system. The improvement was validated by quantifying the sludge discharge volume and detecting the sludge content in the phosphating tank. [Result] The application of pneumatic diaphragm pump significantly promoted the transfer of phosphating sludge to the settling tank. The sludge removal efficiency was nearly doubled compared with the original system, effectively reducing residual sludge in the phosphating tank. [Conclusion] Replacing the electric centrifugal pump with a pneumatic diaphragm pump can substantially improve the working efficiency of the phosphating sludge removal system, significantly reduce the sludge content in the phosphating tank, ensure painting quality on vehicle body, and lower equipment maintenance costs.