Hangzhou Suntech Machinery Co, Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 30 sets per 4 months |
| Delivery Time | 2～4 months |
| Packaging Details | pallets |
| material | steel |
| coating type | chrome |
| coating thickness | ＞0.2μm |
| capacity | according to customer |
| Brand Name | SUNTECH |
| Certification | DDG |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 30 sets per 4 months |
| Delivery Time | 2～4 months | Packaging Details | pallets |
| material | steel | coating type | chrome |
| coating thickness | ＞0.2μm | capacity | according to customer |
| Brand Name | SUNTECH | Certification | DDG |
| Place of Origin | CHINA | ||
| High Light | Steel Hard Chrome Plating Machine ，0.2um Hard Chrome Plating Machine | ||
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
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 ℃
DK 30~50 A/dm2
Hydrogen removal: Temperature 200~230 ℃
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.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2014
Total Annual:
8,000,000-20,000,000
Employee Number:
16~20
Ecer Certification：
Verified Supplier
Hangzhou Suntech Machinery Co.,Ltd. which is engaged in supplying machines for metal products and industrial automatic equipment, is a high-tech enterprise of Zhejiang province. Our powerful professional researching team has imported, digested and absorbed the most advanced technology of equipment o... Hangzhou Suntech Machinery Co.,Ltd. which is engaged in supplying machines for metal products and industrial automatic equipment, is a high-tech enterprise of Zhejiang province. Our powerful professional researching team has imported, digested and absorbed the most advanced technology of equipment o...
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