| 摘要 |
PROBLEM TO BE SOLVED: To improve the precipitation dimensional accuracy of an electrodeposition coating film by stably providing an excellent electrodeposition coating operation. SOLUTION: A DC power source 5 is controlled by electrodeposition control means 7, 8 to output a specified target current pattern, the current running between a work 3 to be coated and counter electrodes 4 is agreed with the target current pattern so that the current of the specified pattern is constantly supplied to an electrodeposition solution 2 from the DC power source 5 even when the condition of the electrodeposition solution 2 is changed by the secular change, or the like, and a constantly stable precipitation is obtained thereby.
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