Thick products made of 7XXX alloy and manufacturing process
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United States of America
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Mar 18, 2025
Grant Date -
Dec 8, 2022
app pub date -
Feb 23, 2022
filing date -
Feb 23, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to an aluminum alloy for the manufacture of thick blocks comprising (as a percentage by weight), Zn: 5.3-5.9%, Mg: 0.8-1.8%, Cu: <0.2%, Zr: 0.05 to 0.12%, Ti<0.15%, Mn<0.1%, Cr<0.1%, Si<0.15%, Fe<0.20%, impurities having an individual content of <0.05% each and <0.15% in total, the rest aluminum. The alloy may be used in a process comprising the steps of:
- (a) casting a thick block of an alloy according to the invention(b) solution heat treating said cast block at a temperature of 500 to 560° C. for 10 minutes to 20 hours,(c) cooling said solution heat treated block to a temperature below 100° C.,(d) tempering said solution heat treated and cooled block by heating to 120 to 170° C. for 4 to 48 hours,
First Claim
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International Classification(s)
- 2022 Application Filing Year
- C22F Class
- 180 Applications Filed
- 57 Patents Issued To-Date
- 31.67 % Issued To-Date
Cited Art Landscape
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- 0 Citation Count
- C22F Class
- 0 % this patent is cited more than
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