EP 1233078 B1 20060215 - Process for quenching metal workpieces
Title (en)
Process for quenching metal workpieces
Title (de)
Verfahren zum Abschrecken von metallischen Werkstücken
Title (fr)
Procédé de trempe de pièces métalliques
Publication
Application
Priority
DE 10108057 A 20010220
Abstract (en)
[origin: EP1233078A2] Method for quenching metal workpieces is carried out in a furnace above atmospheric pressure. Nitrogen, argon, helium or mixtures of these are used as quench gas. Hydrogen is fed into the evacuated oven chamber before the quench gas in an amount which does not form an explosive mixture under the process conditions.
IPC 8 full level
C21D 1/613 (2006.01); C21D 1/74 (2006.01)
CPC (source: EP US)
C21D 1/613 (2013.01 - EP US); C21D 1/74 (2013.01 - EP US); C21D 2241/01 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1233078 A2 20020821; EP 1233078 A3 20031126; EP 1233078 B1 20060215; AT E317918 T1 20060315; DE 10108057 A1 20020822; DE 50205811 D1 20060420; ES 2258572 T3 20060901; US 2002121320 A1 20020905; US 6692593 B2 20040217
DOCDB simple family (application)
EP 02003818 A 20020220; AT 02003818 T 20020220; DE 10108057 A 20010220; DE 50205811 T 20020220; ES 02003818 T 20020220; US 7607202 A 20020215