Title:
ALUMINUM ALLOY PLATE FOR BOTTLE-SHAPED CAN BODY AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/058935
Kind Code:
A1
Abstract:
The aluminum alloy plate for a bottle-shaped can body contains 0.05-0.60 mass% of Si, 0.05-0.80 mass% of Fe, 0.05-0.25 mass% of Cu, 0.80-1.50 mass% of Mn, 0.80-1.50 mass% of Mg, Al, and incidental impurities. A deep-drawn cup obtained using a blank with a diameter of 57 mm and a drawing ratio of 1.73 has a 45˚ earing ratio of 2.5% or less. The average height value of 0-180˚ earing is smaller than the average height value of 45˚ earing. The yield strength is between 180MPa and 230MPa. A value obtained by subtracting the yield strength from the tensile strength is between 10.0MPa and 28.0MPa. On the surface of the aluminum alloy plate for the bottle-shaped can body, crystal grains arranged orthogonally to the drawing direction have a width of between 10µm and 60µm.
Inventors:
KOBAYASHI RYOHEI (JP)
ICHITANI KOJI (JP)
TANAKA HIROKI (JP)
ICHITANI KOJI (JP)
TANAKA HIROKI (JP)
Application Number:
PCT/JP2018/032450
Publication Date:
March 28, 2019
Filing Date:
August 31, 2018
Export Citation:
Assignee:
UACJ CORP (JP)
International Classes:
C22C21/00; C22C21/06; C22F1/04; C22F1/047
Foreign References:
| JP2006077310A | 2006-03-23 | |||
| JP2004183035A | 2004-07-02 | |||
| JP2004250790A | 2004-09-09 | |||
| JP2004300537A | 2004-10-28 | |||
| JP2006089828A | 2006-04-06 |
Other References:
"50th commemorative project executive committee-commemorative publication division", ALUMINUM PRODUCTS AND MANUFACTURING TECHNOLOGY, 31 October 2001 (2001-10-31), pages 408 - 411
Attorney, Agent or Firm:
NAGOYA INTERNATIONAL PATENT FIRM (JP)
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