EP 0355520 A3 19900418 - METHOD OF HEAT TREATING WORKPIECES
Title (en)
METHOD OF HEAT TREATING WORKPIECES
Publication
Application
Priority
DE 3828134 A 19880818
Abstract (en)
[origin: EP0355520A2] The invention relates to a method of heat treating workpieces (metal, ceramic) in a continuous furnace and, at the same time, especially to the influencing of the flow of the treatment-gas atmosphere existing in the furnace. It is possible to influence the flow of the furnace gas by blowing in a proportion of the treatment gas required for the heat treatment at a pressure lying above the normal feed pressure of the treatment gas and directed into one or more furnace zones.
IPC 1-7
IPC 8 full level
C21D 1/74 (2006.01); C21D 1/767 (2006.01); C21D 9/00 (2006.01); F27B 9/30 (2006.01); F27D 7/02 (2006.01)
CPC (source: EP)
C21D 1/767 (2013.01); C21D 9/0056 (2013.01); F27B 9/3005 (2013.01); F27D 7/02 (2013.01)
Citation (search report)
- [X] DE 617319 C 19350816 - BENNO SCHILDE MASCHB AKT GES
- [A] US 3415503 A 19681210 - HOWARD BECK JACOB
- [AD] EP 0075438 B1 19871216
- [A] DE 2601658 A1 19770728 - J F MAHLER FA
Designated contracting state (EPC)
AT BE DE ES FR IT NL
DOCDB simple family (publication)
EP 0355520 A2 19900228; EP 0355520 A3 19900418; EP 0355520 B1 19940413; AT E104360 T1 19940415; DE 3828134 A1 19900222; DE 58907441 D1 19940519; ZA 896284 B 19900425
DOCDB simple family (application)
EP 89114350 A 19890803; AT 89114350 T 19890803; DE 3828134 A 19880818; DE 58907441 T 19890803; ZA 896284 A 19890817