Method of casting lithium containing aluminium alloys
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 14, 2017
Grant Date -
Feb 11, 2016
app pub date -
Mar 11, 2014
filing date -
Apr 11, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Method of casting aluminum alloy ingot including lithium, including: preparing at least two molten aluminum based alloys in separate furnaces, first alloy with composition A free from lithium as purposive alloying element, and second alloy with composition B including lithium as purposive alloying element; transferring the first alloy via metal conveying trough from the furnace to a casting station; initiating casting an ingot and casting the first alloy to required length L1 in the casting direction; subsequently transferring the second alloy via metal conveying trough from the furnace to the casting station while simultaneously stopping transfer of the first alloy to the casting station; casting the second alloy from an end surface of the cast first alloy at length L1 to an additional required length L2 in the casting direction; cropping the cast ingot at a bottom thereof at a length greater than of equal to cast length L1.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- B22D Class
- 507 Applications Filed
- 395 Patents Issued To-Date
- 77.91 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B22D Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 14, 2028 |
