Acid Potassium Chloride Zinc Electroplating Brightener

Potassium chloride type weakly acidic galvanizing electrolyte is a kind of cyanide-free galvanizing process developed rapidly in recent years, which is referred to as potassium salt galvanizing.

It is characterized by simple electrolyte composition, stable electrolyte, fine coating, bright, high current efficiency, wide operating temperature range (5 ~ 60℃), simple wastewater treatment. The chemical dissolution of the anode in the electrolytic cell leads to the increase of the concentration of main salt ions in the electrolyte.

The treatment method is to increase the bath temperature to about 45℃, add 3g-5g/L activated carbon, stir for 30 minutes, stand filtration. After activated carbon treatment, the additive will also lose a part, must be appropriate to add, add the amount of hull slot to determine.

Coating performance evaluation index

Coverage capacity: refers to the full coverage capacity of the coating, also refers to the depth capacity

Uniform plating capacity: high, medium and low area coating thickness uniform ability.

Leveling ability: The better the leveling, the better the brightness

Corrosion resistance: refers to the corrosion resistance of the coating, coating rust resistance is mainly related to the thickness of the coating and the sealing film. Potassium chloride galvanized layer rust prevention ability is very poor, galvanized layer of closed passivation can prevent oxygen and moisture in the air from penetrating into the coating, prevent rust.

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