Multi tanks aluminum surface treatment horizontal anodizing
production line
一. Product Description
1. The anodized layer significantly improves the corrosion
resistance of the aluminum, with a corrosion resistance rating of
at least Grade 9.
2.The anodizing process can provide a uniform, consistent color and
finish to the aluminum profiles, enhancing their aesthetic appeal
for various applications.
3. The anodized layer is sealed to ensure a low porosity, with a
typical hole sealing value of ≤30 mg/dm2.
二. Design Condition
- Alloy : Aluminium 6061 to 6063 or others
- Anodizing film thinkness:10~ 12µm micron
- Average coverage area: 350m²/T (ton)
- Max aluminium profile length:6500mm
- Extrusion ratio : 2.5kg/m²
- Working hour/m: 300d/m x 20h/d = 600h/m
- Racking system: Three fixtures /rack
- Racking operation : Manual
- Equipment Usage Rate: 0.9
- Power supply : AC 3phase 380v 50hz
- Control Power : AC220V 50Hz
- Water supply : 2kg/cm²·G
- Hot steam : 6kg/cm²·G
- Compressor air : 6kg/cm²·G
三.Process Tank
- Degreasing 【Free sulfuric acid 180±30 g/l】 1 Tank
- Alkaline Etching【Free alkali 40-60g/l,Al3+ 30-120g/】 2 Tanks
- Neutralization 【Free sulfuric acid180±20g/l】 1 Tank
- Anodising 【Free sulfuric acid 140-180g/l,Al3+≤20g/l】 5 Tanks
- Colouring 【stannous sulfate 3-8g/l,Free sulfuric acid 15-25g/l,PH 0.8-1.2】 3 Tanks
- 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) 3 jig(rack)/tank x 5tanks = 15jig(rack)
(2) Current density: 130A/m²
(3) Process time: 30min
(4) Unprocess time: 10min
(5) Total time 30+10=40min
(6) Average anodizing layer : 0.36*1.3*30*0.77 =10.81um
- Colour 1
1) Clour process: Mix Salts
2) Quantity:3 jig(rack)/tank x 1tanks = 3jig(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:
( 3 rack x 5 tank x 60min/h) ÷40min x600 hour =13500jig(rack)
2) Design 50m²/jig(rack) . Where every tank is 100m²
3) Area treatment/year : 13500jig(rack)x 50m² /jig =675000m²
2. Anodizing treatment weight:
Monthly output : 675000m²÷350m²/T*0.9=1735T≧1500T
3. Power consumption:
1) Anodising Tank:100m²/tank* 130A/ m²÷0.9=14444A/tank
Power Rectifier : 15000A =3unit
2) Clouring tank: 100㎡/tank×70A/m²÷0.9 = 7777A/tank
Colour Rectifier : 8000A =3 unit
六. Process Chat
Discription for Un
1) De = Degreasing
2) Rs = Rinsing, 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
