FIELD: methods and devices for metal processing.
SUBSTANCE: group of inventions relates to metalworking, particularly to lamination and preliminary processing of metal strips. Laminated metal strip contains a laminated polymer coating on the inverting side and a varnish coating on the outward side. Tin can ends are formed by annealing of laminated metal strip, wherein metal strip is heated to annealing temperature higher than polymer melting point for sufficient time to bring polymer into amorphous state. In some cases, the polymer film laminated on the metal strip is a polyethylene terephthalate film.
EFFECT: group of inventions allows to produce aluminium billet ends of cans, which includes a laminated amorphous polymer coating, having low peeling, low turbidity and high resistance characteristic during testing with acetic acid.
35 cl, 18 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| POLYMER FILMS SURFACE ROUGHING | 2018 |
|
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