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Sur-Precision Metal Technology Co., Ltd.

Electroplating Additives, Additives, Chemical manufacturer / supplier in China, offering Non-Cyanide Zinc Plating Chemicals, Wax Filth Remover-Plating Pre-Treatment Chemicals, Water Based PU Adhesive and so on.

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Non-Cyanide Zinc Plating Chemicals

FOB Price: Get Latest Price
Min. Order: 1 Ton
Production Capacity: 30 Tons/Month
Transport Package: Plastic Drum
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: HN-NK
  • Classification: Chemical Additives
  • Trademark: IMT
  • Origin: China
  • Efficacy: Electroplating
  • Appearance: Liquid
  • Specification: N. W. 5kg or 25kg Per drum
Product Description
1. Characteristics,
Cyanide Free, environmental friendly
It can achieve elegant and bright zinc plating over a wide range of current density
Extremely even plating thickness, with high dispersion capacity
Plating is extremely soft and easy to chromate passivation, the deformation process can be processed after plating
Process stability, high tolerance for impurities and good temperature resistance
Plating solution is simple and stable, without any control hassle
Suitable for hanging galvanized and roll galvanized production line

2. Plating bath composition and operating conditions,
 
 Average amount of usage
Zinc oxide8-12 g / l 10g/l
Sodium hydroxide100-140g/l 130g/l
Brightener HN-NK18-10 mg / l 10 mg / l
Additive agent HN-NK28-10 mg / l 10 mg / l
Refiner HN-NK35-10 mg / l Depends on the water quality
Temperature15-40° C Room temperature
Current Density0.5-8 A/dm2
Voltage2-6V

3. Plating solution preparation methods,
A. Put one fifth of water into the plating bath, adding required sodium hydroxide and keep stirring till complete dissolution;
B. Then mix zinc oxide with water into a paste, slowly pour into the bath, stir to completely dissolve
C. Once the zinc oxide is completely dissolved, add water to the the required volume;
D. Continuous electrolysis for 30 minutes using Wavy false cathode at a low current density (0.2 A/dm2)
E. Finally, adding the calculated amount of various additives, stir well, then the plating is ready to start

4. Equipment Requirements,
Plating bath: Steel tanks lined with plastic or plastic tank.
Circulation filter: The circulation filter can prevent rough coating.

5. Additive function and complementary,
1) Polish agent HN-NK1: Fine crystalline plating can be achieved over a wide range of current density. Insufficient amount can result in low potential zone with lightless and a small amount of gray fog, in case of excessive, cathode hydrogen evolution severe and result in low current efficiency.
2) Additive HN-NK2: The Plating can improve brightness and leveling, prevent white Plating in a high potential zone. Insufficient amount can result in Less brightness in middle potential zonet, and whitish in high potential zone; While excessive can result in cathode hydrogen evolution severe, and low current efficiency.
3) Impurity agent HN-NK3: Special anti-hard water and Metal impurity agent, the water can complex Ca, Mg and other metal impurities, Thereby reduce the impact of metal impurities contamination

Non-Cyanide Zinc Plating Chemicals
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