Global Patent Index - EP 3429784 A1

EP 3429784 A1 20190123 - METHOD FOR MANUFACTURING A TURBINE SHROUD FOR A TURBOMACHINE

Title (en)

METHOD FOR MANUFACTURING A TURBINE SHROUD FOR A TURBOMACHINE

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES TURBINENDECKBANDS FÜR EINE TURBOMASCHINE

Title (fr)

PROCEDE DE FABRICATION D'UN ANNEAU DE TURBINE POUR TURBOMACHINE

Publication

EP 3429784 A1 20190123 (FR)

Application

EP 17715221 A 20170310

Priority

  • FR 1652102 A 20160314
  • FR 2017050546 W 20170310

Abstract (en)

[origin: WO2017158264A1] The invention relates to a method for manufacturing a turbine shroud (24) for a turbomachine, involving manufacturing at least one turbine shroud segment (26), placing the turbine shroud segment (26) in a lower mold in such a way that an outer surface of the turbine shroud segment is in at least partial contact with the lower mold, and depositing a layer of powder on an inner surface (28) of the turbine shroud segment (26). An upper mold is then placed on the layer of powder, and an abradable coating (32) is created by spark plasma sintering the layer of powder, the abradable coating (32) being provided to be arranged across from a turbine wheel.

IPC 8 full level

B22F 3/105 (2006.01); B22F 3/24 (2006.01); B22F 5/00 (2006.01); B22F 7/06 (2006.01); B22F 7/08 (2006.01); F01D 9/04 (2006.01); F01D 11/12 (2006.01)

CPC (source: EP US)

B22F 3/105 (2013.01 - EP US); B22F 3/24 (2013.01 - US); B22F 5/009 (2013.01 - EP US); B22F 7/06 (2013.01 - EP US); B22F 7/08 (2013.01 - EP US); F01D 9/04 (2013.01 - US); B22F 2003/247 (2013.01 - EP US); B22F 2207/01 (2013.01 - EP US); B22F 2301/15 (2013.01 - US); F01D 11/122 (2013.01 - EP US); F05D 2230/22 (2013.01 - EP US); F05D 2230/61 (2013.01 - EP US); F05D 2240/11 (2013.01 - EP US)

Citation (search report)

See references of WO 2017158264A1

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

FR 3048629 A1 20170915; FR 3048629 B1 20180406; CN 109070219 A 20181221; CN 109070219 B 20210817; EP 3429784 A1 20190123; US 10843271 B2 20201124; US 2019054537 A1 20190221; WO 2017158264 A1 20170921

DOCDB simple family (application)

FR 1652102 A 20160314; CN 201780023920 A 20170310; EP 17715221 A 20170310; FR 2017050546 W 20170310; US 201716084567 A 20170310