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US 5,516,382 AGranted
Strong formable isotropic aluminium alloys for drawing and ironing
AssigneePechiney Rhenalu
InventorGuy-Michel Raynaud
Life of this patent
Estimating the term…
Abstract
An aluminum alloy useful for drawing and/or ironing, particularly of drink cans. The alloy consists essentially of, in weight percent, Fe<0.25; Si<0.25; Mn from 1.05 to 1.6; Mg from 0.7 to 2.5; Cu from 0.20 to 0.6; Cr from 0 to 0.35; Ti from 0 to 0.1; V from 0 to 0.1; other elements: each <0.05; total<0.15; and remainder Al.
Claims13
Al-based alloy for drawing and/or ironing, consisting essentially of, in weight percent:
- Fe<0.25;
- Si<0.25;
- Mn from 1.05 to 1.6;
- Mg from 0.7 to 2.5;
- Cu from 0.20 to 0.6;
- Cr from 0 to 0.35;
- Ti from 0 to 0.1;
- V from 0 to 0.1;
- other elements:
- each<0.05;
- total <0.15;
- and remainder Al,
- said alloy being in the form of a rolled strip or sheet produced by casting an ingot, homogenizing or heating said ingot, hot rolling and cold rolling without intermediate annealing to a degree of cold deformation greater than 50%, substantially without Mn-deficient "white areas" being visible in the micrographic structure of the ingot after homogenization or heating.
10 more elements
Al-based alloy for drawing and/or ironing, consisting essentially of, in weight percent:
- Fe<0.15;
- Si<0.25;
- Mn from 1.2 to 1.6;
- Mg from 0.8 to 1.2;
- Cu from 0.2 to 0.6;
- Cr from 0 to 0.35;
- Ti from 0 to 0.1;
- V from 0 to 0.1;
- other elements:
- each<0.05;
- total <0.15;
- and remainder Al, said alloy being in the form of a rolled strip or sheet produced by casting an ingot, homogenizing or heating said ingot, hot rolling and cold rolling without intermediate annealing to a degree of cold deformation greater than 50%, substantially without Mn-deficient "white areas" being visible in the micrographic structure of the ingot after the homogenizing or heating.
9 more elements
Process for obtaining a rolled strip or sheet, comprising the steps of:
- obtaining an Al-based alloy consisting essentially of, in weight percent, Fe<0.25;
- Si<0.25;
- Mn from 1.05 to 1.6;
- Mg from 0.7 to 2.5;
- Cu from 0.20 to 0.6;
- Cr from 0 to 0.35;
- Ti from 0 to 0.1;
- V from 0 to 0.1;
- other elements:
- each <0.05;
- total<0.15;
- and remainder Al, casting said alloy, homogenizing or heating, hot rolling and cold rolling without intermediate annealing, said alloy being substantially without Mn-deficient "white areas" being visible in the micrographic structure of the cast alloy after said homogenizing or heating, wherein the degree of cold deformation is greater than 50%.
9 more elements
Dependencies are inferred from the claim text.