Global Patent Index - EP 2644728 A4

EP 2644728 A4 20170517 - MAGNESIUM ALLOY SHEET HAVING SUPERIOR FORMABILITY AT ROOM TEMPERATURE, AND METHOD FOR MANUFACTURING SAME

Title (en)

MAGNESIUM ALLOY SHEET HAVING SUPERIOR FORMABILITY AT ROOM TEMPERATURE, AND METHOD FOR MANUFACTURING SAME

Title (de)

MAGNESIUMSLEGIERUNGSBLECH MIT HERVORRAGENDER FORMBARKEIT BEI RAUMTEMPERATUR UND HERSTELLUNGSVERFAHREN DAFÜR

Title (fr)

FEUILLE D'ALLIAGE DE MAGNÉSIUM AYANT UNE APTITUDE SUPÉRIEURE AU FAÇONNAGE À LA TEMPÉRATURE AMBIANTE ET SON PROCÉDÉ DE FABRICATION

Publication

EP 2644728 A4 20170517 (EN)

Application

EP 11843068 A 20111123

Priority

  • KR 20100116975 A 20101123
  • KR 2011008991 W 20111123

Abstract (en)

[origin: EP2644728A2] The present invention provides a magnesium alloy plate having high formability, in which Ca is added to a Mg-Zn alloy as a precipitation enhancing alloy, and a precipitation behavior is improved by twin-roll strip casting and subsequent heat treatment to obtain high strength and low anisotropy, and thus press formability is greatly improved compared to a conventional magnesium alloy plate. The magnesium alloy plate includes : Zn: 1 ˆ¼ 10 wt%; Ca: 0.1 ˆ¼ 5 wt%; and balances of magnesium (Mg) and inevitable impurities, wherein the magnesium alloy plate has a limiting dome height (LDH) of 7 mm or more.

IPC 8 full level

C22C 23/04 (2006.01); B22D 11/06 (2006.01); C22F 1/06 (2006.01)

CPC (source: EP)

C22C 23/04 (2013.01); C22F 1/06 (2013.01); B22D 11/0622 (2013.01)

Citation (search report)

  • [YD] KR 20100038809 A 20100415 - POSTECH ACAD IND FOUND [KR]
  • [Y] KR 20100078107 A 20100708 - IND ACADEMIC COOP [KR]
  • [A] JP 2010013725 A 20100121 - NAT INST OF ADV IND & TECHNOL, et al
  • [A] ZHOU T ET AL: "Microstructures and properties of rapidly solidified Mg-Zn-Ca alloys", TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, ELSEVIER, AMSTERDAM, NL, vol. 18, 1 December 2008 (2008-12-01), pages s101 - s106, XP027086921, ISSN: 1003-6326, [retrieved on 20081201]
  • See references of WO 2012070870A2

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2644728 A2 20131002; EP 2644728 A4 20170517; KR 101303585 B1 20130911; KR 20120055304 A 20120531; WO 2012070870 A2 20120531; WO 2012070870 A3 20120823

DOCDB simple family (application)

EP 11843068 A 20111123; KR 20100116975 A 20101123; KR 2011008991 W 20111123