Title:
MAGNESIUM ALLOY COILED MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/065331
Kind Code:
A1
Abstract:
Disclosed are a magnesium alloy coiled material having excellent flatness and a manufacturing method therefor, and a magnesium alloy member using the coiled material and a manufacturing method therefor. Specifically disclosed is a coiled material in which a plate-like material consisting of magnesium alloy is wound in a cylindrical shape, and the inner diameter of which is 1000 mm or less. When a warp test specimen (1) cut from the coiled material is mounted on a horizontal table (100), the ratio of a maximum distance (h) of a gap (110) between both (1) and (100) in the vertical direction to a width (w) of the test specimen (1) is 0.5% or less. The coiled material can be manufactured by applying rolling to the cast materials obtained by consecutively casting the magnesium alloy, applying warm cure working to the obtained rolled plates, and winding the obtained worked plates after the temperature immediately before the winding is made 100˚C or lower at the time of winding the obtained worked plates in the cylindrical shape. By making the temperature immediately before the winding sufficiently low, plate-like materials after the winding are not susceptible to causing warp in the width direction even when the number of winding is high, and besides are not susceptible to having winding tendency and thus has the excellent flatness even when the winding diameter is small.
Inventors:
KITAMURA TAKAHIKO (JP)
INOUE RYUICHI (JP)
MORI NOBUYUKI (JP)
OISHI YUKIHIRO (JP)
MIZUNO OSAMU (JP)
KAWABE NOZOMU (JP)
INOUE RYUICHI (JP)
MORI NOBUYUKI (JP)
OISHI YUKIHIRO (JP)
MIZUNO OSAMU (JP)
KAWABE NOZOMU (JP)
Application Number:
PCT/JP2010/070818
Publication Date:
June 03, 2011
Filing Date:
November 22, 2010
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
KITAMURA TAKAHIKO (JP)
INOUE RYUICHI (JP)
MORI NOBUYUKI (JP)
OISHI YUKIHIRO (JP)
MIZUNO OSAMU (JP)
KAWABE NOZOMU (JP)
KITAMURA TAKAHIKO (JP)
INOUE RYUICHI (JP)
MORI NOBUYUKI (JP)
OISHI YUKIHIRO (JP)
MIZUNO OSAMU (JP)
KAWABE NOZOMU (JP)
International Classes:
B21B3/00; B21D1/00; C22C23/02; C22F1/06; B21B1/00; B22D11/12; C22C23/00; C22C23/04; C22C23/06; C22F1/00
Domestic Patent References:
| WO2009001516A1 | 2008-12-31 | |||
| WO2006003899A1 | 2006-01-12 |
Foreign References:
| JP2009113090A | 2009-05-28 | |||
| JP2002126806A | 2002-05-08 | |||
| JP2002121657A | 2002-04-26 | |||
| JP2008308703A | 2008-12-25 |
Other References:
See also references of EP 2505275A4
Attorney, Agent or Firm:
YAMANO, HIROSHI (JP)
Hiroshi Yamano (JP)
Hiroshi Yamano (JP)
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