Global Patent Index - EP 2374905 B1

EP 2374905 B1 20190123 - MANUFACTURING METHOD OF MAGNESIUM BASED ALLOY FOR HIGH TEMPERATURE

Title (en)

MANUFACTURING METHOD OF MAGNESIUM BASED ALLOY FOR HIGH TEMPERATURE

Title (de)

HERSTELLUNGSVERFAHREN EINER MAGNESIUMBASIERTE LEGIERUNG FÜR HOHE TEMPERATUREN

Title (fr)

PROCÉDÉ DE FABRICATION D'UN ALLIAGE À BASE DE MAGNESIUM POUR HAUTE TEMPERATURE

Publication

EP 2374905 B1 20190123 (EN)

Application

EP 11159526 A 20110324

Priority

  • KR 20100028157 A 20100329
  • KR 20100135979 A 20101227

Abstract (en)

[origin: EP2374905A2] Provided is a manufacturing method of a magnesium-based alloy for high temperature. The manufacturing method includes melting a magnesium (Mg) or magnesium alloy into a liquid phase, adding calcium oxide (CaO) 1.4 times the weight of a final calcium (Ca) target composition onto a surface of a melt in which the magnesium or the magnesium alloy is melted, forming a targeted amount of Ca in the magnesium or magnesium alloy through a reduction reaction between the melt and the added CaO. Specifically, the amount of Ca formed is in the range of 0.8 wt% to 2.4 wt%, and a final composition of the Mg alloy includes 6.0 to 8.0 wt% of aluminum (Al), 0.1 to 0.3 wt% of manganese (Mn), 0.2 to 0.3 wt% of strontium (Sr), less than 0.04 wt of zinc (Zn), less than 0.9 wt of tin (Sn), and a balance being Mg.

IPC 8 full level

C22C 1/06 (2006.01); B22D 21/00 (2006.01); C22C 23/02 (2006.01)

CPC (source: EP)

B22D 21/007 (2013.01); C22C 1/06 (2013.01); C22C 23/02 (2013.01)

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 2374905 A2 20111012; EP 2374905 A3 20111221; EP 2374905 B1 20190123; AU 2011233969 A1 20121018; AU 2011233969 B2 20141120; CA 2794968 A1 20111006; ES 2716236 T3 20190611; PL 2374905 T3 20190531; RU 2012140397 A 20140510; RU 2549040 C2 20150420; TW 201202436 A 20120116; TW I456071 B 20141011

DOCDB simple family (application)

EP 11159526 A 20110324; AU 2011233969 A 20110323; CA 2794968 A 20110323; ES 11159526 T 20110324; PL 11159526 T 20110324; RU 2012140397 A 20110323; TW 100110095 A 20110324