Copper strip pickling line

 

 

 

 

 

NameCopper/aluminum/ strip cleaning line

Incoming strip thickness: 0.04mm-4.0mm

Strip width maximum 1100mm

Function: To make the surface of copper strip skimmed, polished and passivated.

Line speed: 10-60 m/min stepless

Raw material:
(1) SurfaceOil: less than 500mg/m² of two sides, free of rust

(2) Shape:

Uniformity: Less than±10mm no holes    

Scratch and fold: Minimum

Edge wave, central deflection: less than 5mm in height, and less than 3% in gradient.

Bending: Less than 3mm/1000mm

(3)Tolerance of thickness and width

Thickness: longitude less than ±5%, latitude less than±5%

Tolerance of width: less than ±10mm.

Output strip surface standard:

Surface Oil content: less than 20mg/m² of two sides, free of rust

Material consumption:

 

1

Item 

Media

Consumption

 

Remark

2

Degreasing tank

Deonized water

0.014t/h

Filling capacity 4.5M3

3

Polishing tank

Deonized water

0.012t/h

Filling capacity 2.5 M3

4

Hot water washing

Deonized water

0.012t/h

Filling capacity 2.5 M3

5

Passivation tank

Deonized water

0.012t /h

Filling capacity 2.5M3

6

Pre-passivation tank

Recycling water

1t /h(need to supplement 1t/h)

Filling capacity 7.5M3

7

Cold water washing tank

Recycling water

8

Acid washing

Cold water

4t

Filling capacity 4.0M3

9

Hydraulic pump station

Plant recycling water

3t

 

10

Electricity

 

443.2kw

 

11

Compressed air

 

3 NM3

 

 

Production flow: 

Crane brings the reel to the material storage platform, and then the loading trolley takes the reel to the hydraulic expanding de-coiler. The de-coiler is equipped with pickup roller, brings the strip to the straighter by splice plate on deflection rollerthe straightened strip will go into the hydraulic shear, cut the head, bonding the head of the coming strip with the end of the passed strip by joint machine; the electrical control system begins to measure and control the length from the joint, when the joint passes the squeeze roller and support roller ,squeeze roller and support roller will open automatically, when the joint got through ,the squeeze roller and support roller will press automatically; the strip will go to the skimming tank to dispel the oil, the skimmed strip will be washed by cold water after getting through the squeeze roller ,then the strip will go into the acid washing tank, then get into the scrubbing tank (polish with cold water),the tank is equipped with a pair of brush with 500 pins, while washing ,the two sides of the strip will be polished ; then get into the scrubbing tank (polish with hot water),the tank is equipped with a pair of brush with 600 pins, while washing ,the two sides of the strip will be polished; the polished strip goes through the single-row squeeze roller, then washed by hot water, the water can be recycled with a storage tank. After washing by hot water, the strip passes through single-row squeeze roller before going into hot water spray tank, after polishedsqueezed by double-row squeeze roller (one row is 3M product roller)the strip goes in to the drying tank, tension will be adjusted after s roller after dryingtension will be adjusted after s roller after drying, the strip will be sent to the coiler by splice plate on deflection roller, the coiler is installed on a slide base which is movable, the optical and electrical edge-middle servo system is conducted by hydraulic cylinder driven by hydraulic pressure; the system is controlled automatically, to keep the Pyramid degree of the strip after coiling in ±1.0mm, finally the strip is taken by unloading trolley from the coiler by crane.

The speed of the line is adjustable, max speed 60m/min,with belt speed 10 m/min, tension divides into two parts ,de-coil tension and coil tension are adjustable according to different typessizeprocess requirements, the temperature of the storage tank can be controlled automatically, the liquid level is controlled liquid meterthe level can be tested and alarm can be given automaticallySensors monitor, display and give alarm about the position, pressure, and temperature.

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