Anodizing Production Line with Free Sulfuric Acid 180 plusmn 30 g/l Degreasing Tank
一.Product overview
1. The anodizing production line is an essential equipment for surface treatment of aluminum and its alloys. It mainly forms a dense oxide film on the surface of aluminum through electrochemical reactions, significantly improving the corrosion resistance, wear resistance, and aesthetic appearance of aluminum materials.
2. Hard film anodizing usually uses sulfuric acid as the electrolyte, with a concentration generally maintained between 10% and 20%. The change in sulfuric acid concentration will directly affect the growth rate and quality of the film layer.
3. Future production lines will increasingly focus on energy-saving design, with plans to introduce efficient power sources and circulating water systems in order to reduce energy consumption and water resource use, and achieve sustainable development.
二. Design Condition
| 1 | Alloy | Aluminium 6061 to 6063 or others |
| 2 | Anodizing film thinkness | 10~ 12µm m |
| 3 | Average coverage area | 350m²/T (ton) |
| 4 | Max aluminium profile length | 6500mm |
| 5 | Extrusion ratio | 2.5kg/m² |
| 6 | Working hour/m | 300d/m x 20h/d = 600h/m |
| 7 | Racking system | Two fixtures /rack |
| 8 | Racking operation | Manual |
| 9 | Equipment Usage Rate | 0.9 |
| 10 | Power supply | AC 3phase 380v 50hz |
| 11 | Control Power | AC220V 50Hz |
| 12 | Water supply | 2kg/cm²·G |
| 13 | Hot steam | 6kg/cm²·G |
| 14 | Compressor air | 6kg/cm²·G |
三.Process Tank
| 1 | Degreasing 【Free sulfuric acid 180±30 g/l】 | 1 Tank |
| 2 | Alkaline Etching【Free alkali 40-60g/l,Al3+ 30-120g/】 | 2 Tanks |
| 3 | Neutralization 【Free sulfuric acid180±20g/l】 | 1 Tank |
| 4 | Anodising 【Free sulfuric acid 140-180g/l,Al3+≤20g/l】 | 4 Tanks |
| 5 | Colouring 【stannous sulfate 3-8g/l,Free sulfuric acid 15-25g/l,PH 0.8-1.2】 | 2 Tanks |
| 6 | Medium Temperature Sealing【PH 5-6.5,Nickel ion0.8-1.3g/l,Fluorion0.3-0.7 g/l】 | 3 Tank |
四.Treatment Process:
- Degreasing
(1) 6jig(rack)/ tank x 1 tank=6jig(rack)
(2) treatment time: 2-5min - Alkaline Etching
(1) 6jig(rack) / tank x 2 tank=12jig(rack)
(2) treatment time: 3-15min - Neutralization
(1) 6jig(rack) / tank x 1 tank=6jig(rack)
(2) treatment time: 1-5min - Anodizing
(1) 2 jig(rack)/tank x 4tanks = 8jig(rack)
(2) Current density: 130A/m²
(3) Process time: 30min
(4) Unprocess time: 10min
(5) Total time 30+10=40min
(6) Average anodizing layer : 0.3*1.3*30*0.77 =10.81um
- Colour 1
1) Clour process: Mix Salts
2) Quantity:2 jig(rack)/tank x 1tanks = 2jig(rack)
3) Current density: 70A
4) Process time: 2-8min
6. Sealing
1) Sealing menthod: Sealing at Medium or Normal Temperature
2) Quantity:6jig(rack)/tank x 1 tank
3) Process time 10-15min
五. Design Parameter and Setting
1. Anodizing treatment area:
1) Each anodizing process tank need 40min ,where total jig(rack)/year:
( 2 rack x 4 tank x 60min/h) ÷40min x600 hour =7200jig(rack)
2) Design 50m²/jig(rack) . Where every tank is 100m²
3) Area treatment/year : 7200jig(rack)x 50m² /jig =360000m²
2. Anodizing treatment weight:
Monthly output : 360000m²÷350m²/T*0.9=925T≧900T
3. Power consumption:
1) Anodising Tank:100m²/tank* 130A/ m²÷0.9=14444A/tank
Power Rectifier : 15000A =4unit
2) Clouring tank: 100㎡/tank×70A/m²÷0.9 = 7777A/tank
Colour Rectifier : 8000A =2unit
六. Process Chat
| Discription for Un |
| 1 | De | Degreasing |
| 2 | Rs | Rinsing |
| 3 | HW Rs | Hot Water Rinsing |
| 4 | AE | Alkaline Etching |
| 5 | Ne | Neutralization |
| 6 | An | Anodizing |
| 7 | Cl | Coloring |
| 8 | Sl | Sealing |
| 9 | MU | Material Unloading |
| 10 | Pc | Packing |
Transportation&Packaging
Product Tags:
|
|
3-4 Crane Sets Anodizing Production Line with Sulfuric Acid Electrolyte for Oxide Film Images
|
