Forming the shape of a cup
Punch aluminum sheets, and form the shape of cups as the foundation by shallow drawing.
DI processing
Perform the drawing & ironing process for cups to shape them into thin, narrow cylinders.
There is no seam between the base and the can body. Cans can be perfectly sealed after filling of beverage."
Trimming
Cut the upper body of the can to the required height.
Cleaning
Inject warm water and chemical solutions to wash off the lubricants attached on the can's surface.
After cleaning, perform the surface processing and dry the cleaned can in an oven.
Printing
Use a high-speed printer to print the can's surface based on the assigned pattern. Separate the printing design by color and produce a plate. Copy the pattern onto the blanket (rubber plate). Swirl the blanket and the can at the same time. Print on the side surface of the can.
Ovening
After printing, apply varnish and bake in an oven. This helps form an wear-resistant, smooth surface.
Coating the interior
Spray the can's interior for coating to keep the flavor of the beverage inside and to prevent corrosion of metals. Dry at high temperatures around 390℉.
Necking
This is a process that presses the mold onto the upper part of the can to form a staircase shape. This necking processing helps the can stay highly resistant to external pressure and impact.
Flanging
Use a roller to curl the mouth, and shape the lid into the form for seaming.
Inspection
A strict inspection is conducted in the intermediate of each process for each can.Only cans that pass this test will be packaged and stored.
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