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

三.Process 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) 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

5. 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

Transportation&Packaging

MEI-AL Technology has been committed to serve the aluminum profile surface treatment industry with its strong technical force, excellent production and processing, scientific management methods and excellent management style. Mei-al main production: anodizing, coloring, electrophoresis production line, products have special high-power silicon control rectifier, high-power high-frequency switching power equipment, electrophoresis workshop pure water equipment(RO machines), refining equipment, electrophoretic paint recovery equipment, electrophoresis curing furnace,loading and unloading machines,1T+1T professional anodizing cranes, anodizing tank temperature control system and production line automatic control system, etc.

In our perpetual effort and support of our partners in the industry,MEI-AL Technology  has obtained outstanding achievements and is still maintaining a rapid development speed.With the operation spirit of “Professional, Concebtration, Integrity, Co-win”, MEI-AL Technology will provide with you excellent products and perfect services, in the rooted concept of Growind Up with You !

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