EP 4267772 A1 20231101 - NON-MAGNETIC TIMEPIECE PARTS AND THERMO-MECHANICAL TREATMENT METHOD FOR OBTAINING SAID PARTS
Title (en)
NON-MAGNETIC TIMEPIECE PARTS AND THERMO-MECHANICAL TREATMENT METHOD FOR OBTAINING SAID PARTS
Title (de)
NICHTMAGNETISCHE UHRTEILE UND THERMOMECHANISCHES BEHANDLUNGSVERFAHREN ZUR HERSTELLUNG DIESER TEILE
Title (fr)
PIÈCES D'HORLOGERIE AMAGNÉTIQUES ET PROCÉDÉ DE TRAITEMENT THERMOMÉCANIQUE POUR L'OBTENTION DE TELLES PIÈCES
Publication
Application
Priority
- FR 2014031 A 20201223
- EP 2021087307 W 20211222
Abstract (en)
[origin: WO2022136552A1] Non-magnetic part comprising an austenitic alloy, the austenitic alloy comprising between 50 and 85 wt % of iron, one or more gammagene elements the weight percentage or the total weight percentages of which amount to between 15 and 35 wt %, and less than 2 wt % of nitrogen. The austenitic alloy has a crystallographic structure comprising a predominantly cubic crystal structure and the presence of a hexagonal crystal structure. The magnetic part comprises a hardness gradient in the direction extending radially from the surface of the at least one portion of the non-magnetic part to the inside of the non-magnetic part, the hardness gradient having a value greater than or equal to 100 HV.
IPC 8 full level
C21D 1/74 (2006.01); C21D 1/26 (2006.01); C21D 7/04 (2006.01); C21D 9/00 (2006.01); C22C 19/00 (2006.01); C22C 19/05 (2006.01); C22C 30/00 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/30 (2006.01); C22C 38/34 (2006.01); C22C 38/38 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP US)
C21D 1/26 (2013.01 - EP); C21D 6/00 (2013.01 - US); C21D 7/04 (2013.01 - EP); C21D 8/005 (2013.01 - US); C21D 9/0068 (2013.01 - EP US); C21D 9/0075 (2013.01 - EP); C22C 38/001 (2013.01 - EP US); C22C 38/04 (2013.01 - EP); C21D 1/74 (2013.01 - EP); C21D 2211/001 (2013.01 - EP US); C21D 2221/10 (2013.01 - EP); C21D 2261/00 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/26 (2013.01 - EP); C22C 38/28 (2013.01 - EP); C22C 38/30 (2013.01 - EP); C22C 38/34 (2013.01 - EP); C22C 38/38 (2013.01 - EP); C22C 38/60 (2013.01 - EP)
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3118064 A1 20220624; FR 3118064 B1 20231201; CN 116888282 A 20231013; EP 4267772 A1 20231101; US 2024043951 A1 20240208; WO 2022136552 A1 20220630
DOCDB simple family (application)
FR 2014031 A 20201223; CN 202180093515 A 20211222; EP 2021087307 W 20211222; EP 21843991 A 20211222; US 202118259011 A 20211222