EP 2980233 B1 20190605 - METHOD FOR REFINING TI-BASED INCLUSIONS IN MARAGING STEEL BY VACUUM ARC REMELTING
Title (en)
METHOD FOR REFINING TI-BASED INCLUSIONS IN MARAGING STEEL BY VACUUM ARC REMELTING
Title (de)
VERFAHREN ZUM VERFEINERN VON TI-BASIERTEN EINSCHLÜSSEN IN MARTENSITAUSHÄRTENDEM STAHL DURCH VAKUUMLICHTBOGENUMSCHMELZEN
Title (fr)
PROCEDE D'AFFINAGE D'INCLUSIONS A BASE DE TI DANS DE L'ACIER MARAGING PAR REFUSION A ARC SOUS VIDE
Publication
Application
Priority
- JP 2013068376 A 20130328
- JP 2013206288 A 20131001
- JP 2014057728 W 20140320
Abstract (en)
[origin: EP2980233A1] Provided is a method of producing maraging steel and a method of making Ti-based inclusions finer and making the sizes of Ti-based inclusions that may differ at different locations in the steel ingot more uniform. A method of producing a maraging steel by using vacuum arc remelting that uses a vacuum arc remelting apparatus at least includes a steel ingot production step of producing a steel ingot by melting a consumable electrode made of maraging steel in a crucible of the apparatus, and in this method, the steel ingot production step includes cooling the steel ingot with rare gas introduced between the steel ingot and the crucible.
IPC 8 full level
B22D 27/00 (2006.01); B22D 9/00 (2006.01); B22D 23/10 (2006.01); C21C 7/06 (2006.01); C21C 7/10 (2006.01); C21D 6/00 (2006.01); C22B 9/20 (2006.01); C22C 33/04 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/10 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01)
CPC (source: EP)
B22D 9/003 (2013.01); B22D 23/10 (2013.01); B22D 27/003 (2013.01); C21C 7/06 (2013.01); C21C 7/10 (2013.01); C22B 9/20 (2013.01); C22C 33/04 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/06 (2013.01); C22C 38/105 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C21D 6/001 (2013.01)
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 2980233 A1 20160203; EP 2980233 A4 20170329; EP 2980233 B1 20190605; EP 2980233 B8 20190717; CN 105308196 A 20160203; CN 105308196 B 20171201; JP 6338156 B2 20180606; JP WO2014156942 A1 20170216; TW 201504454 A 20150201; TW I553128 B 20161011; WO 2014156942 A1 20141002
DOCDB simple family (application)
EP 14773993 A 20140320; CN 201480030673 A 20140320; JP 2014057728 W 20140320; JP 2015508406 A 20140320; TW 103111808 A 20140328