| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrodeposition coating method and an electrodeposition coating apparatus, both suitable for preventing the occurrence of air-pocket leading to coating defects on a workpiece. SOLUTION: In the electrodeposition coating for forming a coating film on the surface of the workpiece W by immersing the workpiece W into an electrodeposition bath 1 storing an electrodeposition liquid and applying voltage, the electrodeposition coating of the workpiece W is carried out while imparting agitation flow flowing upward to the surface of the electrodeposition coating liquid from the bottom zone of the electrodeposition bath 1 by jetting the electrodeposition coating liquid from a riser pipe 7 arranged in the vicinity of the bottom of the electrodeposition bath 1 and provided with many nozzles for jetting the electrodeposition coating liquid toward the liquid surface at least in a region where the workpiece W is present during the application of voltage to form the electrodeposited film on the surface of the immersed workpiece W. COPYRIGHT: (C)2009,JPO&INPIT
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