Flat Rolled Products
ALmitas+ KO (highly adhesive surface-treated aluminum alloy sheets)
ShareHighly adhesive surface-treated aluminum sheets manufactured only by UACJ in the world
Features
- The high adhesion makes it possible to join the aluminum with plastic or other dissimilar materials.
- Almitas+ KO adheres extremely well to resins, adhesives, and coating films.
- The oxide film is thin, and the material has excellent thermal conductivity, heat resistance, and workability.
KO treatment is ...
... a process of forming a porous oxide film in a branch-like complex shape by AC electrolysis of an aluminum sheet in an alkaline electrolyte.
While an anodic oxide film is usually 2 to 10 µm thick, a KO-treated film is 200 to 250 nm.
(KO-treated film is very thin, with a thickness of 1/10 to 1/40 of an anodic oxide film.)
Structure of KO-treated film
Peel strength from adhesive by surface treatment type
Applications
- PCB: Commonly used and highly rated in terms of quality
- Transport panel materials: Panel bases for trucks and trains
- Automotive parts: Bonding of plastic and aluminum
- Rechargeable battery materials: Bonding bases, e.g., laminate pack and electrode tab materials