| PATENT ASSIGNEE'S COUNTRY | Canada |
| UPDATE | 07.00 |
| PATENT ASSIGNEE | Alcan International |
| PATENT CLAIMS |
Casting a non heat-treatable Al alloy to form cast slab; Sub jecting said cast slab to a series of rolling steps to produce a sheet article of final gauge; the rolling step comprising - Hot an warm rolling the cast slab to form an intermediate sheet article of intermediate gauge - Cooling the intermediate sheet article by forced cooling - Warm & cold rolling the cooled intermediate sheet article to final gauge at RT - 340C to form said sheet article of final gauge - Annealing the final gauge sheet article to cause recrysta llization Said series of rolling steps being carried out continuously without intermediate cooling or full annealing of the interme diate sheet article |
| PATENT PHOTOCOPY | Available on request |
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