Title:
COLD-ROLLED ALUMINUM ALLOY SHEET FOR BOTTLE CAN
Document Type and Number:
WIPO Patent Application WO/2012/043582
Kind Code:
A1
Abstract:
The present invention reduces the cost of production of a cold-rolled aluminum alloy sheet to be used as a material for bottle cans and reduces the width-direction unevenness of earing. This cold-rolled aluminum alloy sheet for bottle cans has a specific composition and has a structure which contains a small amount of dispersed particles having a center-of-gravity diameter less than 1 µm, which represent an α phase, and in which the ratio of the amount of the β phase that is an Al6(Fe,Mn)-based intermetallic compound to the amount of the α phase that is an Al-Fe-Mn-Si-based intermetallic compound is 0.50 or more in terms of the ratio of the maximum height Hβ of the X-ray diffraction peaks and the maximum height Hα of the X-ray diffraction peaks, Hβ/Hα. Thus, the hot-rolled sheet in the invention has an even degree of recrystallization in the sheet-width direction, and the cold-rolled aluminum alloy sheet has low width-direction unevenness of earing.
Inventors:
ARUGA YASUHIRO
MATSUMOTO KATSUSHI
TSURUDA KIYOHITO
MASADA KAZUHARU
INOUE YUJI
MATSUMOTO KATSUSHI
TSURUDA KIYOHITO
MASADA KAZUHARU
INOUE YUJI
Application Number:
PCT/JP2011/072116
Publication Date:
April 05, 2012
Filing Date:
September 27, 2011
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
ARUGA YASUHIRO
MATSUMOTO KATSUSHI
TSURUDA KIYOHITO
MASADA KAZUHARU
INOUE YUJI
ARUGA YASUHIRO
MATSUMOTO KATSUSHI
TSURUDA KIYOHITO
MASADA KAZUHARU
INOUE YUJI
International Classes:
C22C21/06; C22F1/04; C22F1/047; C22F1/00
Domestic Patent References:
| WO2007052416A1 | 2007-05-10 |
Foreign References:
| JP2011202273A | 2011-10-13 | |||
| JP2011132592A | 2011-07-07 | |||
| JP2007270281A | 2007-10-18 | |||
| JP2006152359A | 2006-06-15 | |||
| JP2006077278A | 2006-03-23 | |||
| JPH0617181A | 1994-01-25 | |||
| JPH08134610A | 1996-05-28 | |||
| JPH0860283A | 1996-03-05 | |||
| JPH07197173A | 1995-08-01 | |||
| JP2005076041A | 2005-03-24 | |||
| JPH09279281A | 1997-10-28 |
Attorney, Agent or Firm:
OGURI Shohei et al. (JP)
Shohei Oguri (JP)
Shohei Oguri (JP)
Download PDF:
Claims:
Previous Patent: BUS BAR, METHOD OF MANUFACTURING BUS BAR, AND BUSBAR-CONNECTOR
Next Patent: INSIDE-DOOR-HANDLE DEVICE FOR VEHICLE
Next Patent: INSIDE-DOOR-HANDLE DEVICE FOR VEHICLE