Title:
METHODS FOR PRODUCING 2024 AND 7075 ALUMINUM ALLOYS BY RECYCLING WASTE AIRCRAFT ALUMINUM ALLOYS
Document Type and Number:
WIPO Patent Application WO/2019/057057
Kind Code:
A1
Abstract:
The techniques for producing 2024 and 7075 aluminum alloys by recycling waste aircraft aluminum alloys, which belong to technical fields for circular economy. The present invention develops techniques for obtaining the 2024 and 7075 aluminum alloys by subjecting waste aircraft aluminum alloys as raw materials to pretreatment, smelting, impurity removal, melt ingredient assay, ingredient adjustment, refining, and casting. Through utilizing the waste package aluminum alloys and the waste aluminum pop-top cans to adjust the ingredients, the waste aircraft aluminum alloys would be recycled at a lower cost without downgrading. The techniques has some advantages, such as low cost, and applicability for industrial production, as well as prominent economic benefit.
Inventors:
ZHANG SHENGEN (CN)
LIU BO (CN)
LIN RUI (CN)
LIU BO (CN)
LIN RUI (CN)
Application Number:
PCT/CN2018/106424
Publication Date:
March 28, 2019
Filing Date:
September 19, 2018
Export Citation:
Assignee:
UNIV BEIJING SCIENCE & TECHNOLOGY (CN)
BOEING CHINA CO LTD (CN)
BOEING CHINA CO LTD (CN)
International Classes:
C22B7/00
Domestic Patent References:
| WO2009030987A2 | 2009-03-12 |
Foreign References:
| CN103173622A | 2013-06-26 | |||
| CN102912140A | 2013-02-06 | |||
| CN105441746A | 2016-03-30 | |||
| CN102319890A | 2012-01-18 | |||
| AU2008229963B1 | 2010-03-04 |
Other References:
See also references of EP 3684956A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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