Barrel Plating Line 20 - 200kg Loading

1. Technological process of production(Taking nickel barrel plating as an example​)

feeding→alkaline degreasing→electrolytic degreasing→water rinsing→pickling→water rinsing→nickel pre-plating→water rinsing→nickel plating→water rinsing→hot water rinsing→drying→protection→drying→put down

2. Solution preparation

Nickel plating solution:    NiSO₄.6H₂O                    100±20 g/L
                                        NiCl₂.6H₂O                      100±20 g/L
                                        H₃BO₃                              40±10 g/L
                                         Wetting agent                   10±2 ml/L
                                         Brightening agent             1.5 ml/L

                                         PH                                     3.8~4.6

                                         Temperature                      55±5 ℃

                                         Anode material                  electrolytic nickel

3. Maintenance and adjustment of nickel plating solution
3.1 It is necessary to regularly ensure the normal dissolution and good conductivity of the anode.
3.2 Regularly analyze the solution and adjust it in a timely manner.
3.3 Strictly control the pH value of the solution.
3.4 Add  additives at a rate of 170ml/KAH.

4.The causes and troubleshooting methods of common faults

5. Major treatment methods for plating solution
5.1 Acidification: Adjust the plating solution with sulfuric acid to pH=3 and heat it up to around 50 ℃.
5.2 Oxidation: Add 2-3 ml/l of 30% hydrogen peroxide under continuous stirring for 2-3 hours.
5.3 Alkalization: adjust PH=5.5~6.2 with dilute sodium hydroxide solution.
5.4 Activated carbon treatment: Slowly add 3-5 g/l of powdered activated carbon under continuous stirring, heat to 60-80 ℃, continue stirring for a period of time, and then let it stand for filtration.

6. Removal of Unqualified Nickel Layer
6.1 Chemical Removal of Nickel Coatings on Copper and Copper Alloys
Anti pollution salt (sodium m-nitrobenzenesulfonate)            industrial grade 70 ± 10 g/l
Sulfuric acid (H₂SO₄ specific gravity=1.84)                           industrial grade 70 ± 10 g/l
Sodium thiocyanate (NaSCN)                                               0.5 ± 0.3 g/l
Temperature                                                                          90 ± 10 ℃
Time                                                                                       surface changes from black to brown
Brown film is removed in the following solution
Sodium cyanide (NaCN)                                                       industrial grade 35 ± 5 g/l
Sodium hydroxide (NaOH)                                                    industrial grade 35 ± 5 g/l
Temperature                                                                          room temperature
Time                                                                                      until net removal

7. Packaging & Shipping

We can pack it by pallet, or according to the customers' specific requirements.

Port: Shanghai/Ningbo

8. 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.

Any doubt please contact us.