EP 0829554 B1 20000426 - Low pressure carburising device with a plurality of sequentially arranged chambers
Title (en)
Low pressure carburising device with a plurality of sequentially arranged chambers
Title (de)
Niederdruck-Aufkohlungsanlage mit mehreren hintereinander angeordneten Kammern
Title (fr)
Installation pour la cémentation à basse pression avec des compartiments disposés les unes après les autres
Publication
Application
Priority
AT 163596 A 19960916
Abstract (en)
[origin: EP0829554A1] The apparatus for low-pressure carburisation of batches of workpieces comprises a means for transporting them through its various chambers. The transport means take the form of a roller conveyor (22). Batches (4) of workpieces pass successively through a vacuum-tight entry chamber (6), a vacuumisable heating chamber (7) with a nitrogen atmosphere under a pressure of 1-2 bar, at least one carburisation chamber (10, 11) with carburisation gas under a pressure preferably of 10-30 mbar, at least one diffusion chamber (13, 14), and finally a quenching chamber (17) for high-pressure gas quenching.
IPC 1-7
IPC 8 full level
C21D 1/773 (2006.01); C23C 8/20 (2006.01); C23C 8/22 (2006.01)
CPC (source: EP)
C21D 1/773 (2013.01); C23C 8/20 (2013.01); C23C 8/22 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0829554 A1 19980318; EP 0829554 B1 20000426; EP 0829554 B2 20040512; AT 404029 B 19980727; AT A163596 A 19971215; DE 59701501 D1 20000531
DOCDB simple family (application)
EP 97890166 A 19970819; AT 163596 A 19960916; DE 59701501 T 19970819