Method and apparatus for coating a metal strip and the...

Details Method and apparatus for coating a metal strip and the... Method and apparatus for coating a metal strip and the...

B - Operations, Transporting

05

D

B05D 7/14 (2006.01) B05C 9/14 (2006.01) B05D 3/02 (2006.01) B05C 1/08 (2006.01) B05C 9/04 (2006.01)

Patent

CA 2217349

A method and apparatus for extrusion coating both sides of a metal strip (10). A metal strip (10), such as aluminum alloy strip, is moved through a pre-conditioner (20), two extrusion dies (22, 32), a post- heater (42) and a cooling system (44). Both sides of the strip (10) are coated with thin coatings of thermoplastic polymers. The coated metal strip (11) is useful for containers, such as cans and can ends, as well as for automobiles, appliances, aerospace, construction and electrical devices.

L'invention se rapporte à un procédé et à un appareil de couchage par extrusion des deux faces d'une bande métallique (10). On fait passer une bande métallique (10), telle qu'une bande d'alliage d'aluminium, dans un préconditionneur (20), deux matrices à extrusion (22, 32), un dispositif post-chauffant (42) et un système de refroidissement (44). Les deux faces de la bande (10) sont recouvertes de couches minces de polymères thermoplastiques. La bande métallique recouverte (11) est utilisée dans la fabrication de réceptacles, tels que les boîtes métalliques et les fonds des boîtes métalliques, ainsi que dans les domaines de l'automobile, des appareils ménagers, de l'aérospatiale, de la construction et des équipements électriques.

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