Acid Potassium Chloride Zinc Electroplating Brightener

Acid potassium chloride zinc electroplating brightener Packing specifications: 25kg/plastic drum 200kg/plastic drum 1000kg/plastic drum on metal pallet Payment: T/T or L/C Delivery Port: Tianjin or Qingdao Test Institution: SGS or CCIC Capacity: 1000 MT per month Period of Validity: 7 days

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Description

Process of hydrogen removal:

190-230 ℃

More than 3 hours

Carburizing and tin welding parts temperature 140℃-160℃

Hydrogen removal should be carried out immediately after plating, and the parts should be scrapped after more than 4 hours.

Other steel parts must be dehydrogenated within 4 hours after electroplating.

Spring parts, thin-wall parts (wall thickness less than 0.5mm), high-strength steel parts, must be dehydrogenated.

Copper and copper alloy parts can be free of hydrogen removal.

For parts that cannot be heated too high, a lower temperature (140℃-160℃) can be used to extend the time of hydrogen removal.

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