SHANDONG TONGMAO SPECIAL STEEL CO., LTD
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Zinc Coated/Galvalume/Corrugated/Roofing Sheet/Aluminium/Cold Rolled/Roll/Steel/PPGL/PPGI/Gl/Al/Gi/Coil/Sheet
| Product name | Galvanized Corrugated Steel Sheet |
| Thickness | 0.12mm-1.2mm |
| Width | 600-1200mm |
| Zinc coatin | AZ40g/m2-AZ275g/m2 |
| Painting | Top side:10-25 microns, back side 5-10 microns |
| Shape | Waves / Trapezoid etc |
| Spangle | No spangle , min spangle , regular spangle |
| Standard | ASTM AISI JIS DNS GB etc |
| Package | Mill standard export seaworthy packing |
| MOQ | 5 tons |
| Application | 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient |
| Payment terms | L/C , T/T |
| Inspection | Factory Inspection certificate will be issued for every shipments. |
Production process of aluminized zinc plate
The first step:
Pre-treatment: after the cold rolled coil comes to the aluminum zinc plating workshop, after the uncoiler, after the degreasing section and reduction furnace, the steel coil is cleaned and its composition is reduced to the extent that it can be galvanized.
The second step:
The most critical technology is this step. After passing through the zinc pot, a layer of zinc is plated on the surface of the steel plate. After coming out of the zinc pot, it will be beautiful and elegant immediately.
Step 3:
Post-treatment: the steel plate finally comes to the post-treatment stage after a variety of processes, after finishing, tension correction, passivation, and finally obediently rolled to the winding machine, forming our final product.
The corrosion resistance of 55% aluminized zinc plate is 2 times to 6 times that of galvanized plate. Because of its superior corrosion resistance and processing performance, it can be directly used as building roof board, civil and home appliance backplane, etc., and it is also widely used in color coating substrate. The smooth production of aluminized zinc plate not only enriched the company's product categories, but also provided a more flexible choice for the future market layout and strategic planning.
55% aluminized zinc plate has the protection function of the barrier layer from aluminum and the sacrificial protection function of zinc. When zinc is cut and scratched, aluminum will form an insoluble oxide layer to play a protective role. In addition, the density of aluminum zinc plating is low, the thickness of the coating of the same weight is much thicker than that of zinc plating. In addition to corrosion resistance and high temperature resistance, 55% aluminum zinc plate has good reflectivity and good adhesion of paint coating. There are 55% aluminum plated zinc plate with a variety of zinc flower state, beautiful board surface, suitable for external use.
Now the company's aluminum zinc plating line production of aluminum zinc plate types are: colored fingerprint resistant aluminum zinc plate, colorless fingerprint resistant aluminum zinc plate, environmental protection aluminum zinc plate, color coating substrate, high hardness aluminum zinc plate.
