1. Technological process of production.
CCA(copper clad aluminum wire)and CCAM(copper clad aluminum magnesium alloy wire)
pay off→degreasing→ water rinsing → pickling→ water rinsing →
chemical zinc plating 1→ water rinsing → dezinc → water rinsing →
chemical zinc plating 2→ water rinsing → pre-plating copper → water
rinsing → acid copper plating → water rinsing → hot water rinsing →
drying→take up
CCS(copper clad steel wire)
pay off→cathode discharge oil→water rinsing→anode discharge
oil→water rinsing → pickling→ water rinsing → pre-plating copper →
water rinsing → acid copper plating → water rinsing → hot water
rinsing → drying→take up
2. Main process introduction.
Degreasing: remove the oil on the surface of product to ensure the binding
force of the coating .
Pickling: remove the oxide from the surface of the product.
Water rinsing: clean the product thoroughly after the tank to avoid mutual
contamination of the tank.
Chemical zinc plating 1:pre-treatment before electroplating , forming a dense zinc alloy
layer.
Dezinc: remove zinc layer and impurities from substrate surface.
Chemical zinc plating 2 : forming a dense zinc alloy layer and improve the binding force
of subsequent electroplating.
Pre-copper plating : as a pre-coating, to ensure the subsequent coating and base
binding force.
Acid copper plating : thickened copper coating to increase conductivity.
3.Solution preparation
| pre-plating copper | Cu2+ | 10-17g/L |
| K2CO3 | 20-30g/L |
| PH | 9.0-10.5 |
| Temperature | 50~60℃ |
|
| acid copper plating | CuSO4·5H2O | 250-300g/L |
| H2SO4 | 60-100 g/L |
| Cl– | 100-150mg/L |
| Leveling agent | 3-15ml/L |
| Temperature | 40~50℃ |
4.Solution analysis method
Pre-plating solution: Copper ion concentration
1. Pipette 5 ml of electroplating solution into a 250 ml conical
flask,
2. Add approximately 25 ml of deionized water and 2-3g of ammonium
persulfate, shake the conical flask to completely dissolve it,
3. Heat to boiling, place, cool to room temperature, add 3-5 ml of
concentrated ammonia water, and turn the color into a deep blue.
4. Add 50 ml of deionized water and 4-6 drops of indicator
5. Titrate with 0.1mol/L EDTA until the color turns grayish green.
Calculation: Cu (g/L)=12.71 * C * V
C - Concentration of EDTA standard solution (mol/L)
V - Volume of EDTA standard solution consumed (mL)
Acid copper plating solution: Copper ion concentration
1. Pipette 2 milliliters of plating solution and add 100
milliliters of pure water
2. Heat to 40-50 ℃ and add 10 milliliters of 1:1 ammonia water
3. Add 5 drops of PAN indicator
4. Titrate with 0.05mol/L EDTA solution, turning from dark blue to
green as the endpoint.
Calculation: CuSO4 · 5H2O (g/L)=C * V * 249.7/n
C - Concentration of standard EDTA solution
V - Volume of solution consumed for titration of EDTA (ml)
249.7- Molecular weight of copper sulfate
n - Number of milliliters taken from the plating solution
5.Product application
CCA(copper clad aluminum wire)and CCAM(copper clad aluminum magnesium alloy wire)
1. High frequency signal transmission line,
2. Power cable textile shield line,
3. All kinds of electronic components connector , etc.
CCS(copper clad steel wire)
1. The central conductor of a communication cable
2. Shielded braided wire for communication cables
3. Pin lines for electronic components
4. Twisted ground wires and electrified railway lines
5. Thread for other decorative or corrosion protection purposes.
6. Our Services
In order to guarantee the customers are able fully to operate the
machine, if the customer need, we can help customer training,
includes:
(1) Correct operating mode
(2) Correct maintenance way
(3) Correct technological process control
(4) Remove simple problem
All the electroplating machine of our company have already been
widely used in electroplating area.
7.Packaging & Shipping
We can pack it by pallet, or according to the customers' specific
requirements.
Port: Shanghai/Ningbo
