Slit Edge Az150g Hot Dip Gl Full Hard Hot Dipped Galvalume Steel Coil

1. Brief introduction
It is galvanized steel sheet with zinc and aluminum, and is the ideal combination of anti-corrosion and alkali-resistance of zinc, and the durability, heat-resistance, and acid-resistance of aluminum. The galvanized layer
is consisted of 55% of aluminum and 43.3% of zinc and 1.6% of silicon per weight
2. Steel coil processing
Entry end-twin decolier-cleaning-entry looper-pretreatment-pretreatment oven-prime coater-prime oven-quench unit-finish coater-finish oven-embosse-quench unit-quench unit-exit looper-shear-coiler-exit end
3. Application
1) Construction: Roofing, cladding, structural sections, composite panels
2) Electric appliance: Washing machine, refrigerators, toaster, microwave
3) Miscellaneous: Air duct, lighting, computer casing
4. Features
1) Formable, weldable and paintable
2) Superior long term corrosion resistance in the most atmospheric conditions. This is achieved
through the combination of the sacrificial protection of the zinc and barrier protection of aluminum
3) Hot dip galvalume coating out-perform galvanized coating from 2-6 times than galvanized steel
5. Packing details
Each hot dip galvalumetube wrapped by plastic film and waterproof paper, one steel strip strapping
on the galvalume steel coil circumference. 3 - 5 coils tube packed eye vertical on wood pallet, and
strongly strapped by edge protection, and at least 4 steel straps through coil eye. Coil tube packed
eye to sky on wood pallet

(1) Spangle coating of normal zinc flower coating

Zinc layer in the normal solidification process, zinc grains grow freely formed with obvious zinc flower morphology of the coating.

(2) Spangle coating of small zinc flower in Conclusion

During the solidification process of zinc layer, zinc grains are artificially restricted to form as fine zinc flower coating as possible.

(3) Zinc free flower coating spangle-free

By adjusting the chemical composition of the bath, the coating has no visible zinc flower morphology and uniform surface.

(4) Zinc-Iron alloy coating

Heat treatment of the steel strip through the zinc bath, so that the whole coating zinc and iron alloy layer, the appearance of the coating is dark gray, no metallic luster, in the process of violent molding is easy to powder, suitable for in addition to general cleaning, without further treatment can be directly painted coating.

(5) Differential coating

For both sides of galvanized steel sheet, different zinc layer weight coating is required.

(6) Skin pass

Finishing is a cold rolling process of galvanized steel with a small amount of deformation for one or more of the following purposes.

Improve the surface appearance of galvanized steel plate or suitable for decorative coating; So that the finished products do not see the processing of slip line (Luders line) or folding phenomenon temporarily reduced to the minimum.