| 摘要 |
The present invention relates to a device for coloring a surface of a substrate containing magnesium. The device for coloring a surface can color treat a plurality of substrates containing magnesium for productivity to be excellent. Moreover, in color treatment, as evaporation of an immersion solution containing a hydroxyl group can be minimized, marketability of a product, reproducibility, and reliability of the color treated substrate are excellent, and safety with respect to a human body can be improved. In addition, production time and costs can be reduced as a process of exchanging the immersion solution due to concentration change in the immersion solution is excluded. |
