EP 3520916 A4 20200527 - HOT EXTRUSION-MOLDING METHOD FOR Ni-BASED SUPER HEAT-RESISTANT ALLOY AND PRODUCTION METHOD FOR Ni-BASED SUPER HEAT-RESISTANT ALLOY EXTRUSION MATERIAL
Title (en)
HOT EXTRUSION-MOLDING METHOD FOR Ni-BASED SUPER HEAT-RESISTANT ALLOY AND PRODUCTION METHOD FOR Ni-BASED SUPER HEAT-RESISTANT ALLOY EXTRUSION MATERIAL
Title (de)
WARMSTRANGPRESSVERFAHREN FÜR EINE SUPERWÄRMEBESTÄNDIGE LEGIERUNG AUF NI-BASIS UND HERSTELLUNGSVERFAHREN FÜR SUPERWÄRMEBESTÄNDIGES STRANGPRESSLEGIERUNGSMATERIAL AUF NI-BASIS
Title (fr)
PROCÉDÉ DE MOULAGE PAR EXTRUSION À CHAUD POUR ALLIAGE À BASE DE NI TRÈS RÉSISTANT À LA CHALEUR ET PROCÉDÉ DE PRODUCTION D'UN MATÉRIAU D'EXTRUSION D'ALLIAGE À BASE DE NI TRÈS RÉSISTANT À LA CHALEUR
Publication
Application
Priority
- JP 2016190801 A 20160929
- JP 2017030079 W 20170823
Abstract (en)
[origin: EP3520916A1] Provided are: a hot extrusion-molding method for a precipitation strengthened-type Ni-based super heat-resistant alloy; and a production method for a Ni-based super heat-resistant alloy extrusion material. The hot extrusion-molding method is for a Ni-based super heat-resistant alloy, wherein: a billet has a component composition for a precipitation strengthened-type Ni-based super heat-resistant alloy which has a gamma prime phase equilibrium precipitation amount of 40 mol% or more at 700°C; a lubrication glass pad is installed between a die and the billet; and an adjustment is made such that the relationship between the outer diameter DB (mm) of the billet at the time of being inserted in a container and the inner diameter DC (mm) of the container satisfies the condition, (DC-DB): 2-8 mm, or an adjustment is made such that the relationship between the outer diameter DB' (mm) of the billet prior to being heated to a hot processing temperature and the inner diameter DC' (mm) of the container prior to being heated to a preheating temperature satisfies the condition, (DC'-DB'): 3-9 mm. The production method for a Ni-based super heat-resistant alloy extrusion material is performed using the hot extrusion-molding method mentioned above.
IPC 8 full level
B21C 23/00 (2006.01); B21C 23/32 (2006.01); B21C 29/00 (2006.01); B21C 37/04 (2006.01); C22C 19/05 (2006.01); C22F 1/00 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP US)
B21C 23/002 (2013.01 - EP US); B21C 23/08 (2013.01 - US); B21C 23/32 (2013.01 - US); C22C 19/05 (2013.01 - EP); C22C 19/055 (2013.01 - US); C22C 19/056 (2013.01 - US); C22C 19/057 (2013.01 - US); C22F 1/00 (2013.01 - EP); C22F 1/10 (2013.01 - EP); B21C 23/32 (2013.01 - EP)
Citation (search report)
- [Y] EP 0248757 A1 19871209 - UNITED TECHNOLOGIES CORP [US]
- [Y] JP H07136710 A 19950530 - SUMITOMO METAL IND
- [Y] GB 1012743 A 19651208 - CEFILAC
- [Y] RU 2371512 C1 20091027 - FEDERAL NOE GUP VRNII AVIAT MA [RU]
- [A] JP 5919980 B2 20160518
- See references of WO 2018061540A1
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 3520916 A1 20190807; EP 3520916 A4 20200527; CN 109789458 A 20190521; JP 6631896 B2 20200115; JP WO2018061540 A1 20190411; US 2020030863 A1 20200130; WO 2018061540 A1 20180405
DOCDB simple family (application)
EP 17855498 A 20170823; CN 201780060171 A 20170823; JP 2017030079 W 20170823; JP 2018541993 A 20170823; US 201716337775 A 20170823