Causes of ash in low area of potassium chloride zinc plating 12
1. The concentration of the plating solution is too low: the content of zinc chloride, potassium chloride and boric acid in the plating solution is low, resulting in a decrease in the quality of the coating.
2. Insufficient concentration of brightener: insufficient or failure of brightener, unable to form a bright coating.
3.pH value is too high: the pH value of the plating solution is too high, resulting in black, rough and loose coating.
4. hydrogen peroxide residue: hydrogen peroxide residue in the plating solution, oxidizing brightener, resulting in ash coating.
5. Metal impurities: high content of metal impurities in the plating solution, such as iron and copper, affects the quality of the coating.
6. Organic impurities: organic impurities in the plating solution, affecting the uniformity of the coating
Sex and brightness.

Method for treating ash in low area of potassium chloride zinc plating
1. Adjust the concentration of plating solution: through analysis, add zinc chloride, potassium chloride and boric acid to the process specification to ensure that the concentration of plating solution is within the normal range. 2. Add brightener: add brightener appropriately to ensure that the concentration of brightener is sufficient. 3. Adjust the pH value: use hydrochloric acid solution to adjust the pH value of the plating solution in the range of 4.6~5.4 to ensure that the plating solution works at a suitable pH value