Hot-dip Galvanizing Line
We provide hot-dip galvanizing line with American-Steel-Union process, which can produce sheet with small spangles or without spangles. The product has good performance of corrosion resistance and coating adhesion, used widely for manufacture of automobile, household electric appliance, building construction and base plate for color coating etc.
Technology Parameter
| Pay-off type |
Upper pay-off |
| Strip thickness |
0.3~0.8mm |
| Strip width |
1700mm(MAX ) |
| Loading weight |
25t(MAX) |
| Coil diameter |
¢2100mm(MAX) |
| Drum specification |
¢508mm |
| Lubricating type |
thin oil self-lubricating |
| Pressing roll diameter |
¢200mm |
| Screw down |
hydraulic |
Line Main Properties :
1. Line Type : horizontal, vertical, combination of vertical and horizontal
2. Specification / Thickness : cold rolled strip / min. 0.12mm, max. 2.5mm
hot rolled strip / min. 1.5mm, max. 5mm
Width : min. 550mm, max. 1500mm
3. Speed in Process Section: max. 200m/min (240m/min for GL)
4. Continuous Annealing Furnace:
Furnace Type: horizontal, vertical, combination of vertical and horizontal (L type) Heating Method: Gas non-oxidation heating (NOF), Gas radiant tube heating (RTF), Electric radiant tube and electric resistance tape heating Cooling Method: Shielding gas regular air jet cooling, rich hydrogen high speed air jet cooling
5. Zinc pot: jet flow ceramic induction zinc pot (GL line with pre-melting pot)
6. Air knife: single injection advanced air knife, multi-cavity air knife
7. Skin Pass Mill: 300T-800T, 4-roll wet skin pass
8. Energy saving method: high efficiency radiant tube combustion air heat exchanger, fume duct combustion air heat exchanger, fume duct hot air and hot water heat exchanger, hot shielding gas recycle injection pre- heating strip, fume heat radiant before non-oxidation heating pre-heating strip, light fiber furnace lining
Raw material: Pickling hot rolled strip,cold rolled carbon structure steel, high quality carbon structure steel and low alloy steel coil should match standard: GB708-88: Dimension, figuration, weight and allowed deviation of cold rolled sheets/strips and GB13237-91: Quality carbon structural steel cold rolled thick sheets/strips
Audited Supplier 
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