Acid Potassium Chloride Zinc Electroplating Brightener
Potassium chloride type weakly acidic zinc plating electrolyte additives factory Zinc plating brightener and softener Cost saving solution provider
Description
Boric Acid
Stabilize the PH value of the bath to prevent the PH value from rising too fast
Boric acid content is too high: because boric acid solubility is small, easy to crystallize in winter, generally controlled at about 30g/L.
Low boric acid content: the PH value is increased, the main salt is easy to hydrolyze, metal ions to form hydroxide or basic salt in the coating, resulting in rough coating.
Bath formula and technological parameters
|
concentration range |
Standard concentration |
|
|
KCl |
200-230 g/L |
220g/L |
|
ZnCl |
60-100 g/L |
60g/L (barrel) |
|
Boric Acid |
30-40 g/L |
35 g/L |
|
HL-93 Softening Agent |
20-30 g/L |
25 g/L |
|
HL-93 Brightening Agent |
0.6 ml/L- 1.0 ml/L |
0.8ml/L |
|
Temperature (℃) |
10-55℃ |
40℃ |
|
PH value |
4.8-5.6 |
5.2 |
|
DK (A/dm2) |
0.1-5 |
3 |
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