How Aluminum Aerosol Cans Are Made?

From aluminum raw material to empty aerosol can, how are they made?

1.Mixing: Mixing and lubricating aluminum raw materials(slugs)

2. Extrusion: In the impact extrusion process a slug is placed in the forming die and is struck at high speed. The force of the impact causes the metal to flow, without addition of heat, to form a closed end can.

3. Trimming: Trimmers remove the surplus irregular edge and cut each can to a precise specified height. The surplus material is recycled.

4. Washing And Drying: After trimming, wash the bottle to remove any oil or residue, and then drying in a drying oven. This prepares the internal and external surfaces for coating and printing.

5. Inner Coating: The inside of each can is sprayed with epoxy resin(also can choose other options). This is to protect the can itself from corrosion and its contents from any possibility of interaction with the metal.

6. Heat Curing: After heat curing the cans are coated externally with a clear or pigmented base coat which forms a good surface for the printing inks.

7. Printing: And then the aluminum cans are decorated up to 8 colors using offset printing techniques

8. Necking: The last forming process is to neck the top edge of the can, to accept the aerosol valves.

9. Inspection and Packaging: Finally, inspection of this aluminum cans to ensure that they meet standards and requirements.If they pass inspection, they will be packaged according to customer requirements, and then shipped to the customer, or stored in the warehouse.