Degreasing Tank With Free Sulfuric Acid 180 Plusmn 30 G/l For Anodizing Production Line

Degreasing Tank with Free Sulfuric Acid 180 plusmn 30 g/l for Anodizing Production Line

一.Description  

1.Modern anodizing production lines typically use environmentally friendly materials and processes to reduce their impact on the environment.

2.The anodizing production line, with its efficient processing capability and excellent product performance, is widely used for surface treatment of various aluminum products, enhancing the value and aesthetics of aluminum materials.

3.The environmental characteristics and resource conservation measures of the anodizing production line are in line with the global trend of green manufacturing, and help society transition towards sustainable development.

二. Design Condition

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】                                          5 Tanks
5.  Colouring 【stannous sulfate 3-8g/l,Free sulfuric acid 15-25g/l,PH 0.8-1.2】          3 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:

1. Degreasing
   (1) 6jig(rack)/ tank x 1 tank=6jig(rack)
   (2) treatment time: 2-5min
2.  Alkaline Etching 
   (1) 6jig(rack) / tank x 2 tank=12jig(rack)
   (2) treatment time: 3-15min
3.  Neutralization
   (1) 6jig(rack) / tank x 1 tank=6jig(rack)
   (2) treatment time: 1-5min           
4.  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

5.  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