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US 12,385,112 B2Granted
Impact extruded containers from recycled aluminum scrap
AssigneeBall Corporation
InventorsJohn L. Siles, Samuel Melancon, Stanley M. Platek, Anthony Chatey
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Abstract
Novel recycled aluminum alloys are provided for use in an impact extrusion manufacturing process to create shaped containers and other articles of manufacture. In one embodiment blends of recycled scrap aluminum are used in conjunction with relatively pure aluminum to create novel compositions which may be formed and shaped in an environmentally friendly process. Other embodiments include methods for manufacturing a slug material comprising recycled aluminum for use in the impact extraction process.
Claims20
An aluminum alloy slug, comprising:
- a thickness of between about 3 millimeters (mm) and about 14 mm, wherein the aluminum alloy slug is adapted for use in an impact extrusion process to form a metallic container,
- wherein the aluminum alloy slug is formed of an aluminum alloy with a composition comprising:
- at least 97.84 wt. % Al and no more than 99.31 wt. % Al;
- at least 0.10 wt. % Si and no more than 0.18 wt. % Si;
- at least 0.25 wt. % Fe and no more than 0.44 wt. % Fe;
- at least 0.18 wt. % Mn and no more than 0.61 wt. % Mn;
- at least 0.05 wt. % Mg and no more than 0.17 wt. % Mg;
- at least 0.03 wt. % Zn and no more than 0.09 wt. % Zn;
- at least 0.02 wt. % Cr and no more than 0.10 wt. % Cr;
- about 0.01 wt. % Ti;
- and
- the balance in impurities, and
- wherein the aluminum alloy is formed by mixing between 20 and 60 wt. % of a recycled aluminum material with a prime aluminum material.
10 more elements
Dependencies are inferred from the claim text.