Throughout the process, strict quality control checks are performed, including:
✅ Thickness & Dimensional Accuracy
✅ Surface Finish Inspection
✅ Mechanical Property Testing
✅ Corrosion Resistance Evaluation
The final aluminum coils are wrapped, strapped, and prepared for shipment.
Proper packaging ensures protection from damage during transport.
High-purity aluminum ingots are melted in a furnace.
Alloying elements (such as magnesium, silicon, and manganese) may be added to achieve the desired properties.
The molten aluminum is then cast into large slabs or billets using either a direct chill (DC) casting or continuous casting process.
The cast aluminum slabs are preheated to around 400–500°C (750–930°F).
They are passed through a series of rollers to reduce thickness gradually.
This process improves the mechanical properties and refines the grain structure.
After hot rolling, the aluminum is cooled and fed into cold rolling mills to further reduce thickness.
Cold rolling enhances surface finish, improves mechanical properties, and increases hardness.
The final thickness of the aluminum coil is achieved in this stage.
If the coil requires additional flexibility or strength, it undergoes an annealing process at controlled temperatures.
This process relieves internal stresses and enhances formability.
Different tempers (H14, H24, O, etc.) are achieved through specific annealing methods.
Depending on the application, the aluminum coil can undergo various treatments:
Anodizing: Enhances corrosion resistance and improves appearance.
Color Coating (Pre-Painting): Adds a protective or decorative layer for construction and appliance use.
Embossing: Creates textures for aesthetic or functional purposes.
The aluminum coil is cut into specific widths or lengths using slitting machines.
This step customizes the product based on industry requirements.
