MEIAL 750T/month aluminium Automatic Anodizing prodcution Line

一. production Descrtipion

1. The automation of an automatic anodizing production line may encompass a diverse array of components, including programmable logic controllers (PLCs), robotic systems for handling and transferring parts, and sophisticated computer monitoring systems.

2. An automatic anodizing production line is a meticulously engineered system designed to efficiently and consistently apply anodized coatings to a wide range of metal products with precision and reliability.

3. Anodizing is a complex electrochemical process that yields a protective oxide layer on the surface of metals, predominantly aluminum.

二. Design Condition

1. 	Alloy	Aluminium 6061 to 6063 or others
   2	Anodizing film thinkness	10~ 12µm micron
   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	Mamual
   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】 3 Tanks
5. Colouring 【stannous sulfate 3-8g/l,Free sulfuric acid 15-25g/l,PH 0.8-1.2】 1 Tanks
6. Medium Temperature Sealing【PH 5-6.5,Nickel ion0.8-1.3g/l,Fluorion0.3-0.7 g/l】 1Tank

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 3tanks = 6jig(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: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 3 tank x 60min/h) ÷40min x600 hour =5400jig(rack)

2) Design 57.1m²^/jig(rack) . Where every tank is 114.2m²
3) Area treatment/year : 5400jig(rack)x 57.1m² /jig =308340m²

2. Anodizing treatment weight:
Monthly output : 308340m²÷350m²/T*0.9=792T≧750T

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 =1 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

七.Composition and description of the automatic control system

1, This system is applicable to the semi-automatic production line of aluminum oxide anodization. According to its process specifications, the system is planned to adopt an upper computer monitoring and management system (composed of an industrial control computer IPC), a lower computer control execution system (PLC), detection components, and execution devices. There are two operation modes in terms of operation: manual and semi-automatic. When the system is running normally, it is semi-automatic. Based on the input of feeding data, the crane can identify the slot position in semi-automatic mode and execute corresponding oxidation, coloring and other processes. The temperature of the slot liquid meets the process requirements in semi-automatic control. In semi-automatic mode, the single step operation of the crane and related equipment can be controlled in the central control room. In manual mode, the operation can be carried out through on-site operation buttons.