Steel Hard Chrome Plating Machine

• After-sales Service: Warranty Period of 1 Year
• Voltage: 380V
• Automatic Grade: Automatic
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: DDYG
• Warranty: 1 Year
• Certification: CE, ISO
• Transport Package: Pallets
• Specification: Multi racks
• Trademark: SUNTECH
• Origin: China
• HS Code: 8543300090
• Production Capacity: 30 Sets/3months

Product Description

1. Technological process of production

Blank inspection → racking → chemical degreasing → water washing → electrolytic degreasing → water washing → Anodizing (in chromium plating bath) → chromium electroplating → recycling → water washing → put down → water washing → drying → inspection → hydrogen removal → packaging

 

2. Main process introduction

Chemical degreasing:remove the oil on the surface of products

Electrolytic degreasing: further remove the oil on the surface of products to ensure the binding force of the coating .

Pickling: remove the oxide from the surface of products and activate the product surface .

Water rinsing: clean the product thoroughly after the tank to avoid mutual contamination of the tank.

Anodizing:Let the surface of the steel substrate be in an activated state and produce micro rough surfaces, and then proceed with plating. Ensure obtaining a hard chromium coating with good adhesion.

Chrome plating: the product is coated with a uniform coating.

Hydrogen removal:reduce the brittleness of chromium plating and clean the hydrogen embrittlement of the base metal.

3.Photos

 

4. Solution preparation

Anodizing:           DK              30~50 A/dm²

                            Time             0.5~3mins

 

Chrome plating solution:  Cr₂O₃                          200~250 g/L
                                         H₂SO₄                         2.0~3.2 g/L
                                         Cr³⁺                            25-35 g/L
                                         Additives                     16-20 ml/L

                                        Temperature                55~65 ºC

                                         DK                               30~50 A/dm²

 

Hydrogen removal:  Temperature          200~230 ºC

                                 Time                      2~4hours

 

5.Common faults and solutions

 

Common faults	Cause of occurrence	Solution
Insufficient thickness	Insufficient power supply	Increase power consumption
	Low current efficiency	Adjusting plating solution and process parameters
The coating is corrugated and cracked	There is stress on the surface of the part	Improving the surface machining quality before plating
		Heat treatment to eliminate surface stress
Surface burrs	High current density	Reduce current density
Surface peeling and pitting	Inadequate pre-treatment	Strengthen pre-treatment

 

6.Packaging & Shipping

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

Port: Shanghai/Ningbo

 

7. 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.