EP 3953082 A1 20220216 - METHOD FOR MANUFACTURING A PLURALITY OF GUIDE VANES SECTORS USING CASTING
Title (en)
METHOD FOR MANUFACTURING A PLURALITY OF GUIDE VANES SECTORS USING CASTING
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER MEHRZAHL VON LEITSCHAUFELABSCHNITTEN DURCH GIESSEN
Title (fr)
PROCEDE DE FABRICATION D'UNE PLURALITE DE SECTEURS DE DISTRIBUTEUR PAR FONDERIE
Publication
Application
Priority
- FR 1903733 A 20190408
- FR 2020050613 W 20200320
Abstract (en)
[origin: WO2020208325A1] The invention relates to a method for manufacturing a plurality of monocrystalline guide vanes sectors each comprising at least a first blade extending between two platforms, using a lost-wax casting technique. The method involves pouring molten metal into a plurality of ceramic moulds (100) clustered around an axis (A) and controlled solidification of the poured metal in a furnace comprising a radiating heating element configured to be positioned around the cluster, a metal solidification front progressing within each mould in a direction (DS) parallel to the axis of the cluster during the course of the controlled solidification. The method is characterized by the presence, in each mould (100), of a second shell separated from a first shell for the moulding of the guide vanes sector and which delimits a second cavity (130) for the moulding of a dummy blade which acts as a heat shield.
IPC 8 full level
B22C 9/04 (2006.01); B22D 27/04 (2006.01)
CPC (source: CN EP US)
B22C 9/04 (2013.01 - CN EP); B22C 9/06 (2013.01 - US); B22C 9/24 (2013.01 - CN); B22D 27/045 (2013.01 - CN EP US)
Citation (search report)
See references of WO 2020208325A1
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 3094655 A1 20201009; FR 3094655 B1 20210226; CN 113677454 A 20211119; CN 113677454 B 20220816; EP 3953082 A1 20220216; US 11712737 B2 20230801; US 2022193761 A1 20220623; WO 2020208325 A1 20201015
DOCDB simple family (application)
FR 1903733 A 20190408; CN 202080027385 A 20200320; EP 20731165 A 20200320; FR 2020050613 W 20200320; US 202017598672 A 20200320