EP 3880870 A1 20210922 - METHOD FOR PICKLING A TURBOMACHINE COMPONENT
Title (en)
METHOD FOR PICKLING A TURBOMACHINE COMPONENT
Title (de)
VERFAHREN ZUM BEIZEN EINER TURBOMASCHINENKOMPONENTE
Title (fr)
PROCÉDÉ DE DÉCAPAGE D'UNE PIÈCE DE TURBOMACHINE
Publication
Application
Priority
- FR 1871525 A 20181114
- FR 2019052707 W 20191114
Abstract (en)
[origin: WO2020099794A1] The invention relates to a method for pickling a turbomachine component (1), comprising the following steps: positioning the component in a closed chamber (2), injecting a gas mixture (3) into the chamber (2), the gas mixture (3) comprising a halogenated gas, heating the chamber (2), the method being characterised in that: the gas mixture further comprises dihydrogen, the heating step is carried out at a temperature higher than 1000°C and the step of injecting the gas mixture (3) is carried out by circulating through the chamber (2) a flow of gas mixture (3) having a flow rate between 6 and 15 times the volume of the chamber (2) per hour.
IPC 8 full level
C23F 1/12 (2006.01); C23G 5/00 (2006.01); F01D 5/00 (2006.01); F01D 25/00 (2006.01)
CPC (source: EP US)
C23F 1/12 (2013.01 - EP); C23G 5/00 (2013.01 - EP US); F01D 5/005 (2013.01 - EP US); F01D 25/002 (2013.01 - EP); F05D 2230/80 (2013.01 - US)
Citation (search report)
See references of WO 2020099794A1
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 3088346 A1 20200515; CN 113015822 A 20210622; EP 3880870 A1 20210922; US 11549371 B2 20230110; US 2021404340 A1 20211230; WO 2020099794 A1 20200522
DOCDB simple family (application)
FR 1871525 A 20181114; CN 201980074962 A 20191114; EP 19829275 A 20191114; FR 2019052707 W 20191114; US 201917293691 A 20191114