EP 3421156 B1 20200624 - CASTING METHOD FOR PRODUCING A BLADE FOR A GAS TURBINE
Title (en)
CASTING METHOD FOR PRODUCING A BLADE FOR A GAS TURBINE
Title (de)
GIESSVERFAHREN ZUR HERSTELLUNG EINER SCHAUFEL FÜR EINE GASTURBINE
Title (fr)
PROCÉDÉ DE COULÉE POUR PRODUIRE UNE AUBE DE TURBINE À GAZ
Publication
Application
Priority
EP 17179205 A 20170630
Abstract (en)
[origin: EP3421156A1] A casting method for producing a blade of a gas turbine, the method comprising the following steps: a) producing a pattern made of wax of the blade; b) covering the pattern with an outer shell made of slurry; c) heating the pattern covered by the outer shell for separating the wax from the outer shell; d) pouring a molten metal inside the outer shell; e) removing the outer shell from the inner solidified metal. wherein between the steps c) and d) the method comprises the additional step of inserting a filler element inside the outer shell; the filler element being made of a material suitable to go in solution when in contact with the molten metal poured inside the outer shell.
IPC 8 full level
B22D 19/00 (2006.01); B22C 9/04 (2006.01); B22D 23/06 (2006.01)
CPC (source: CN EP)
B22C 7/02 (2013.01 - CN); B22C 9/04 (2013.01 - EP); B22C 9/043 (2013.01 - CN); B22C 9/28 (2013.01 - CN); B22D 19/00 (2013.01 - EP); B22D 19/0081 (2013.01 - EP); B22D 23/06 (2013.01 - EP)
Citation (examination)
US 2015209859 A1 20150730 - ZHENG JIAN [US], et al
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 3421156 A1 20190102; EP 3421156 B1 20200624; CN 109202017 A 20190115; CN 109202017 B 20220513
DOCDB simple family (application)
EP 17179205 A 20170630; CN 201810698606 A 20180629