Acid Potassium Chloride Zinc Electroplating Brightener
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Description
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.
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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