hot dip galvanizing line from China manufacturer - Beijing Sheng'An Machinery & Electrical Equipment Development Company

Place of Origin:

Beijing, China (Mainland)


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Product Detail

Model No.: HDG

STEEL COIL GALVANIZING LINE

Specification of CGL1250 Hot-Dip Galvanizing Production Line
1. Moving car for steel coil
Rail moving car is used for material on or off loading, driven by

motor reducer speed, lifting up and down is finished by hydraulic

system. Moving position inspector and controller of the car is

available when it is running.
2. Unwinder
After unloaded by car, raw coils are sent to expansion drum to tension

to be tight, and feeding material when the drum is rotating.
3. Pinching transmitter
To pinch steel strip while on or off loading, bottom rollers are

driven by motor reducer of speed, with pneumatically pressed down

structure of upper rollers.
4. Shear
For easy control and operation, and to reduce coil changing time,

every uncoiler has its own shear, and every shear adopts double

decker, pressed down hydraulically. Specially, shear operation has

interlocked with whole line control. Shear also contains scrap guiding

table and scrap car.
5. Welting machine
Connect the head and end of steel strips to ensure continuous

production.
6. Deflective setting
To deflect the direction of strip.
7. Accumulating unit
To accumulate strips, the volume should ensure 2-2.5 min of line

running, especially, maintain continuous production when changing

coil.
8. Cleaning unit
The pre-treatment units make up of roller brusher, pump, spray nozzle,

containing three processing sections: 3 steps for alkali cleaning, 3

times of roller brushing and 3 times of water cleaning.
9. Air blowing unit
To blow water film to be dried by hot air, the step is after water

cleaning and water cooling.
10. Tension measuring roller
To measure tension inside the annealing furnace, make up of 3

deflective rollers, among these three, one roller can show tension

results with pressure inspection.
11. Annealing furnace
To dismiss rolling stress, improve mechanical performance inside

annealing furnace and raise heat of strip to certain temperature;

clean surface of strip; micro- oxide film on strip surface is

deoxidized to pure ferric layer by hydrogen in the furnace, preparing

an adhesive surface for coating; also to control strip temperature

precisely while entering into zinc pot through fast or slow cooling;

keep or improve strip shape.
12. Galvanizing pot
To melt zinc ingot, and to realize zinc coating of strip.
13. Air blade
To adjust zinc thickness of strip surface through air blowing.
14. Cooling tower
To cool steel strip from zinc pot naturally or forcedly, ensuring zinc

layer of newly coated strip has already been solidified when reach the

first deflective roller.
15. Cooling and drying
To cool the strip by circulation water, and then press it.
16. Tension leveler
To haul the strip to be tight and straight.
17. Skin pass mill

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