Yamanaka Group

Aluminum Tube

Manufacturing Process

  1. 1 Lubricant Coating

    Lubricant is evenly coated on the material (aluminum slag) surface.

    The lubricant is coated on the slag

  2. 2 Pressing

    The slag is shaped into a tube by the process of impact extrusion.

    The slag is pressed into a tube shape

  3. 3 Lathe Processing

    The tube is cut into the ordered length, while the opening is thread rolled.

    The tube is cut into the ordered length

  4. 4 Annealing

    Heat is applied to the tube, which is then gradually cooled to soften it.

    Annealing process

  5. 5 Inner Coating and Searing

    Based on the specifications, a protective film is coated and seared onto the tube’s inner surface to protect it from the contents.

    Inner coating and searing process

  6. 6 Base Coating

    A base coat is applied to the tube’s exterior surface.

    Base coating process

  7. 7 Printing

    Designs and lettering are printed onto the tube’s exterior surface.

    Printing process

  8. 8 Capping

    A cap is fit onto the tube by controlling the torque.

    Capping process

  9. 9 Sealing

    Based on the specifications, the tube is coated with an adhesive to prevent the contents from leaking.

    Sealing process

  10. 10 Process Inspection

    The quality of the tube’s interior and exterior is rigorously checked before it is packaged.

    Quality Check

  11. 11 Shipment

    The tube is checked one more time, and then shipped to the customer.

    Shipment process