EP 1160349 B1 20040818 - Process and apparatus for heat treating of metallic workpieces
Title (en)
Process and apparatus for heat treating of metallic workpieces
Title (de)
Verfahren und Vorrichtung zur Wärmebehandlung metallischer Werkstücke
Title (fr)
Procédé et appareil de traitement thermique de pièces métalliques
Publication
Application
Priority
EP 00111129 A 20000524
Abstract (en)
[origin: EP1160349A1] Apparatus for heat treating metallic workpieces comprises a heating chamber in which the workpieces are heated and subjected to a gas atmosphere containing nitrogen and a hydrocarbon; and devices for introducing nitrogen and hydrocarbons into the gas atmosphere depending on the carburizing index which represents the carbon content in the edge layer. An Independent claim is also included for a heat treatment process using the above apparatus. The apparatus preferably also has devices for introducing ammonia. The heating chamber is hermetically sealed and is flushed with an inert gas, preferably nitrogen.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 1160349 A1 20011205; EP 1160349 B1 20040818; AT E274073 T1 20040915; DE 50007480 D1 20040923
DOCDB simple family (application)
EP 00111129 A 20000524; AT 00111129 T 20000524; DE 50007480 T 20000524