Global Patent Index - EP 2631312 A4

EP 2631312 A4 20140618 - MAGNESIUM-ALLOY MEMBER, COMPRESSOR FOR USE IN AIR CONDITIONER, AND METHOD FOR MANUFACTURING MAGNESIUM-ALLOY MEMBER

Title (en)

MAGNESIUM-ALLOY MEMBER, COMPRESSOR FOR USE IN AIR CONDITIONER, AND METHOD FOR MANUFACTURING MAGNESIUM-ALLOY MEMBER

Title (de)

MAGNESIUMLEGIERUNGSELEMENT, VERDICHTER FÜR EINE KLIMAANLAGE UND VERFAHREN ZUR HERSTELLUNG EINES MAGNESIUMLEGIERUNGSELEMENTS

Title (fr)

ÉLÉMENT EN ALLIAGE DE MAGNÉSIUM, COMPRESSEUR DESTINÉ À ÊTRE UTILISÉ DANS UN CONDITIONNEUR D'AIR ET PROCÉDÉ DE FABRICATION D'UN ÉLÉMENT EN ALLIAGE DE MAGNÉSIUM

Publication

EP 2631312 A4 20140618 (EN)

Application

EP 11836462 A 20111028

Priority

  • JP 2010244816 A 20101029
  • JP 2011074959 W 20111028

Abstract (en)

[origin: EP2631312A1] The present invention provides a magnesium alloy member and a method for manufacturing a magnesium alloy member capable of achieving a mechanical strength and a high-temperature fatigue strength sufficient to apply them to mechanical parts of a compressor for automotive air conditioners. The invention also provides a compressor for air conditioners using, as a mechanical part thereof, a magnesium alloy equipped with a necessary mechanical strength and high-temperature fatigue strength. More specifically, a magnesium alloy member is formed by subjecting a cast material of a magnesium alloy containing, on the basis of mass%, from 0.3% to 10% calcium (Ca), from 0.2% to 15% aluminum (Al), and from 0.05% to 1.5% manganese (Mn), and containing calcium (Ca) and aluminum (Al) at a calcium/aluminum mass ratio of from 0.6 to 1.7, with the balance being magnesium (Mg) and inevitable impurities to plastic working (extrusion processing) at from 250°C to 500°C. This makes it possible to obtain a magnesium alloy member having a room-temperature 0.2% proof stress of 300 MPa or more and a 150°C fatigue strength of 100 MPa or greater. The magnesium alloy member used for the formation of mechanical parts of a compressor for automotive air conditioners contributes to a reduction in the weight of the compressor.

IPC 8 full level

C22C 23/02 (2006.01); B21C 23/00 (2006.01); B21J 1/02 (2006.01); B21J 5/00 (2006.01); C22C 23/00 (2006.01); C22F 1/00 (2006.01); C22F 1/06 (2006.01); F04B 39/00 (2006.01)

CPC (source: EP US)

B21C 23/00 (2013.01 - US); B21C 23/002 (2013.01 - EP); C22C 23/00 (2013.01 - EP US); C22C 23/02 (2013.01 - EP US); C22F 1/00 (2013.01 - EP); C22F 1/04 (2013.01 - US); C22F 1/06 (2013.01 - EP); F04B 39/0005 (2013.01 - EP); F04B 39/121 (2013.01 - EP); F04B 39/122 (2013.01 - EP); F05C 2201/028 (2013.01 - EP)

Citation (search report)

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 2631312 A1 20130828; EP 2631312 A4 20140618; CN 103180472 A 20130626; JP 2012097309 A 20120524; KR 20130101100 A 20130912; US 2013213528 A1 20130822; WO 2012057329 A1 20120503

DOCDB simple family (application)

EP 11836462 A 20111028; CN 201180052047 A 20111028; JP 2010244816 A 20101029; JP 2011074959 W 20111028; KR 20137013196 A 20111028; US 201113882470 A 20111028