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GI Production Line

GI Production Line

GI production line 1. Main performance parameter of the line 2.1. Raw material Pickling hot rolled strip ,cold rolled carbon structure steel, high quality carbon structure steel and low alloy steel coil,Steel type: 08AL、SPCC、SPCD 、SPCE 2.2 Energy sources :water, electricity, Nature gas 2.3 Raw...

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GI production line

镀锌前处理

1. Main performance parameter of the line

2.1. Raw material

Pickling hot rolled strip,cold rolled carbon structure steel, high quality carbon structure steel and low alloy steel coil,Steel type:  08AL、SPCC、SPCD 、SPCE

2.2 Energy sources:water, electricity, Nature gas

2.3 Raw material:

2.3.1 Strip thickness:0.20-2.5mm

2.3.2 Strip width   1000mm-1500mm

2.3.3 Weight  :     Max25000Kg/coil

2.3.4 Inside diameter φ508mm/φ610mm

2.3.5 Outside diameter φ2100mm

2.4   Finished product

2.4.1 Execute criterion of product qualityGB2518-2004

2.4.2 Finished product:

     Weight :          16000Kg/coil(Max)

2.4.3 Inside diameter   φ508mm

2.4.4 Outside diameter  φ1600mm

2.4.5  Adjusting scope of plating coat thickness (double side) 40~350 g/m2 

2.4.6 Controlling method of zinc layer:    air knife method

2.4.7.State of plating coat:   Normal spangle, spangle、zero spangle

2.4.8. Products process:     Hot dip galvanizing

2.4.9  Protection of plating coat:  Roll passivity, electrostatic oiling

2.5 line speed

2.5.1   Entrance velocity 180m/min(Max.)

2.5.2   Process velocity   140m/min(Max.)

2.5.3   Outlet velocity   180m/min(Max.)

2.5.4 Threading velocity 15m/min                     

 2.6. CGL and plant and layout requirements

·     The unit is arranged in a workshop with a span of 30 m, rail height of 10.5m/+34m/+10.5m (high span of +34m), and a workshop with a length of about 330m.

2.7.Unit capacity:

     Annual output: 300 thousand tons

2.8.Operation mode: uninterrupted operation for 24 hours.

   Effective operation time: 7200 hours

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