EP 3720982 A1 20201014 - METHOD FOR PREPARING A NICKEL-BASED ALLOY
Title (en)
METHOD FOR PREPARING A NICKEL-BASED ALLOY
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER NICKEL-BASISLEGIERUNG
Title (fr)
PROCÉDÉ DE FABRICATION D'UN ALLIAGE À BASE DE NICKEL
Publication
Application
Priority
- DE 102017128663 A 20171204
- DE 102018009375 A 20181129
- DE 2018100980 W 20181203
Abstract (en)
[origin: WO2019110050A1] The invention relates to a method for preparing a nickel-based alloy, in which method: - an electrode is produced by means of VIM, VOF or VLF; - the electrode is heat-treated in a furnace in a temperature range of between 500 and 1300°C for a period of time of 10 to 336 hours in order to reduce stresses and aging, the heat-treatment being carried out for at least 10 hours and a maximum of 48 hours in a temperature range of 1000°C to 1300°C; - the electrode is cooled in air or in the furnace to a temperature of between room temperature and less than 900°C; - the cooled electrode is then remelted by way of ESR at a remelting rate of 3.0 to 10 kg/minute to form an ESR block; - the ESR block is cooled in air or in the furnace to a temperature of between room temperature and less than 900°C, and the ESR block is remelted again by way of VAR at a remelting rate of 3.0 to 10 kg/minute and a fluctuation range of the remelting rate of less than 15%, better still 10%, ideally 5%; - the remelted VAR block is heat-treated in a temperature range of between 500 and 1250°C for a period of time of 10 to 336 hours; - the VAR block is then shaped into the desired product shape and dimension by way of hot forming or cold forming.
IPC 8 full level
C22C 19/03 (2006.01); C22B 4/06 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP KR US)
C22B 9/18 (2013.01 - EP KR); C22B 9/20 (2013.01 - EP KR); C22C 19/03 (2013.01 - EP KR); C22C 19/056 (2013.01 - US); C22F 1/10 (2013.01 - EP KR US)
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)
DE 102018009375 A1 20190606; CN 111225990 A 20200602; CN 111225990 B 20220128; CN 111225990 B9 20220301; EP 3720982 A1 20201014; JP 2021502491 A 20210128; JP 2022023193 A 20220207; JP 7052036 B2 20220411; JP 7374160 B2 20231106; KR 20200070403 A 20200617; US 11306380 B2 20220419; US 2021371963 A1 20211202; WO 2019110050 A1 20190613
DOCDB simple family (application)
DE 102018009375 A 20181129; CN 201880066530 A 20181203; DE 2018100980 W 20181203; EP 18826925 A 20181203; JP 2020526387 A 20181203; JP 2021177629 A 20211029; KR 20207015674 A 20181203; US 201816757810 A 20181203