Copper-Nickel-Chrome Plating Equipment
Copper-Nickel-Chrome Plating Equipment (JYC-CNC-Series)
Built for High-Decorative Multi-Layer Plating
Faucets, shower heads, automotive wheels, motorcycle exhaust pipes, and furniture hardware. These products need bright, corrosion-resistant coatings. Our Copper-Nickel-Chrome Plating Equipment is designed for them. The process sequence is: strike copper, bright acid copper, semi-bright nickel, bright nickel or high-sulfur nickel, and finally micro-porous chrome. Total coating thickness is 20 to 40 microns. Copper-accelerated salt spray testing per ASTM B368 exceeds 48 hours at rating 10 (no defects). This meets ISO 1456 decorative coating specifications. We serve major OEMs like Apple, Dell, HP, Huawei, Asus, Sony, and Lenovo in anodizing.
Materials and Construction for Different Chemistries
Copper, nickel, and chrome solutions have different properties. They use different tanks. Copper and nickel tanks use PP. Chrome tanks use PVC. The circulation filtration system has 5-micron precision. It comes with continuous belt paper filters. Chrome tanks have chrome mist recovery and mesh mist eliminators. The workshop stays environmentally compliant. Copper tanks use phosphorized copper anodes with 0.04% to 0.06% phosphorus. Nickel tanks use sulfur-containing nickel pellets or electrolytic nickel plates.
Three Core Advantages
First, we use micro-porous chrome technology.
A nickel seal layer goes on top of the bright nickel. This forms a micro-porous nickel layer. The top chrome layer has 10,000 to 100,000 micro-pores per cm². These micro-pores disperse corrosion current. They delay nickel layer corrosion. Corrosion resistance is 3 to 5 times better than ordinary dual-layer nickel.
Second, we control the potential difference.
The potential difference between semi-bright and bright nickel exceeds 120 mV. Corrosion direction changes from vertical to horizontal. This better protects the base metal.
Third, the production line is intelligent.
Ampere-hour meters automatically dose brighteners. Online pH meters automatically adjust nickel bath pH to 3.8 to 4.2. The rectifier provides forward and reverse pulse functionality. This enhances copper layer leveling.
What Buyers Often Ask
Buyers ask us: "Export decorative parts have extremely high surface quality requirements. Can you meet them?" Yes. The equipment supports gantry or single-arm automatic lines. For automotive exterior parts, we add constant temperature and humidity pre-treatment degreasing and ultrasonic cleaning stations. For plastic plating, we reserve pre-etching sections. We provide complete wastewater treatment solutions. These include segregated treatment of cyanide, copper, nickel, and chrome waste streams plus water reuse. We ensure compliance with GB 21900-2008 Table 3 or the strictest local discharge requirements.
Technical Specifications
|
Parameter |
Specification |
|
Total Coating Thickness |
20 – 40 µm |
|
Salt Spray Test (CASS) |
> 48 h, rating 10 (ASTM B368) |
|
Micro-pore Density |
10,000 – 100,000 /cm² |
|
Potential Difference (semi-bright/bright nickel) |
> 120 mV |
|
Nickel Bath pH |
3.8 – 4.2 (automatic control) |
|
Phosphorus Content in Anode |
0.04% – 0.06% |
|
Filtration Precision |
5 µm |
|
Applicable Standards |
ISO 1456, GB 21900-2008 |
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