Acid Potassium Chloride Zinc Electroplating Brightener

Electroplating is in the electrolyte containing some metal ions, will be plated workpiece as the cathode, through a certain waveform of low-voltage direct current, so that metal ions get electrons, constantly deposited in the cathode for metal processing process. So as to prevent corrosion, improve wear resistance, electrical conductivity, reflective and improve the appearance of the role.

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Description

Dehydrogenation

When parts are pickling, cathode plate deoiling and electroplating, hydrogen may ooze in the lattice of coating and substrate metal, resulting in lattice distortion, increased internal stress and brittleness.

Prevent hydrogen penetration in the production process: pickling process time selection, mechanical rust removal, cathode movement, after plating hydrogen removal, before the parts dehydrogenation are not passivated, in addition to hydrogen parts to re galvanized, and then passivated.

20231007112303

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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