Electrolytic copper foil production The water used to prepare electrolyte must be pure water. Impurities such as oil, lacquer grease, animal and plant humus grease, fine mud and so on in the water can cause the copper foil to be rough.

Impurities are difficult to get out of water and easily enter the electrolyte. If the surface of the pure water reservoir is pasted with glass fiber reinforced plastic, it must be brushed with weak acid water first, and then with weak alkali water after the glass fiber reinforced plastic is completely cured and dried. After the macromolecular soluble substances in the glass fiber reinforced plastic are completely removed, the water will be used for production. Otherwise Electrolytic copper foil Rough.

When the epoxy glass fiber reinforced plastic is soaked in pure water at a certain temperature, some macromolecular falling objects will dissolve into the water. The preparation of electrolyte with this water will cause roughness and pinholes in the copper foil. This water washing box will cause yellow stains on the surface of electrolytic copper foil, which are small yellow spots. The water reservoir for copper foil production is made of polyoxyethylene and other plastics. Because the water temperature is low, the plastics are not deformed.

Neither iron nor concrete can be used as reservoir. Because the water for electrolytic copper foil production is specially treated, it may be weak acidic or weak alkaline, and iron and cement will be corroded. The corroded iron and cement become impurities in the water, and the copper foil is easy to be rough when entering the electrolyte.