Title:
ALUMINUM ALLOY PLATE FOR TANK AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/202588
Kind Code:
A1
Abstract:
Disclosed in the present invention are an aluminum alloy plate for a tank and a manufacturing method therefor. By means of optimizing the proportions of the main alloying elements of Mn, Mg, Fe and Si and accurately regulating and controlling the distribution of an intermetallic compound, the occurrence rate of perforation is effectively reduced. The utilization rate of regenerated materials of the same series of the product is ≥50%, and the product has unique hereditary structure characteristics: the proportion of a loose area of 2 μm or more in a low-multiple section of an ingot which has not been subjected to homogenization is 0.05-0.18%, and there is no large-size second phase having a size of 70 μm or more. The conversion rate of the AlFeMnSi phase after homogenization is 80-95%. In a longitudinal section of a finished aluminum alloy plate for a tank, the total area proportion of intermetallic compound phases such as AlFeMnSi, which have a size of 5 μm or more, and inclusions is in a range of 0.08-0.80%.
Inventors:
HE HAITONG (CN)
SHAN CHANGZHI (CN)
XU JIN (CN)
YANG BING (CN)
ZHANG NAIJUN (CN)
HU YING (CN)
XUE FEI (CN)
SHAN CHANGZHI (CN)
XU JIN (CN)
YANG BING (CN)
ZHANG NAIJUN (CN)
HU YING (CN)
XUE FEI (CN)
Application Number:
PCT/CN2023/089036
Publication Date:
October 26, 2023
Filing Date:
April 18, 2023
Export Citation:
Assignee:
BAOSHAN IRON & STEEL (CN)
International Classes:
C22C21/08; C22C1/06; C22F1/05
Foreign References:
| CN113549794A | 2021-10-26 | |||
| JPH01119637A | 1989-05-11 | |||
| CN111910111A | 2020-11-10 | |||
| CN105441742A | 2016-03-30 | |||
| CN109518044A | 2019-03-26 | |||
| JP2012188704A | 2012-10-04 | |||
| US20180282848A1 | 2018-10-04 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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