This paper was based on the pretreatment coating line of automobile phosphating,the key processes of phosphating to zirconizing conversion,including the adaptability between processes,the impact of phosphorus on zirconizing solution,and the impact of zirconizing film on electrophoretic permeability were systematically studied.Based on the principle of lean design,process design schemes,engineering design schemes,efficient and reliable equipment phosphorus removal schemes,and process debugging schemes were formulated.The research results and engineering practices of completing the phosphating to zirconizing process upgrade and vertical production transition in one go within 12 days could serve as a reference for peers in the field.
关键词
磷化转锆化/前处理/锆化薄膜/工艺设计/涂装线
Key words
phosphating to zirconizing/pretreatment/zirconizing thin-film/process design/coating line
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