EP 0714452 A1 19960605 - PROCESS AND DEVICE FOR EXCHANGING THE ATMOSPHERE IN A HOOD TYPE ANNEALING FURNACE
Title (en)
PROCESS AND DEVICE FOR EXCHANGING THE ATMOSPHERE IN A HOOD TYPE ANNEALING FURNACE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM AUSTAUSCHEN DER ATMOSPHÄRE IN EINEM HAUBENGLÜHOFEN
Title (fr)
PROCEDE ET DISPOSITIF PERMETTANT DE REMPLACER L'ATMOSPHERE DANS UN FOUR A RECUIRE A CLOCHE
Publication
Application
Priority
- DE 4327975 A 19930819
- EP 9402619 W 19940806
Abstract (en)
[origin: US5730930A] PCT No. PCT/EP94/02619 Sec. 371 Date Feb. 16, 1996 Sec. 102(e) Date Feb. 16, 1996 PCT Filed Aug. 6, 1994 PCT Pub. No. WO95/05487 PCT Pub. Date Feb. 23, 1995Fresh gas is blown into the ring-shaped space between the annealing charge and the hood as an upwardly directed high-speed jet (9) at a velocity of approximately 80 m/s. The gas mixture which forms is evacuated through a gas outlet (10) arranged in the pedestal and diametrically opposite to the gas inlet. At a volume flow rate of about 130 m3/s, rinsing takes about 6 minutes.
IPC 1-7
IPC 8 full level
C21D 9/67 (2006.01); C21D 9/673 (2006.01); F27B 11/00 (2006.01); C21D 1/767 (2006.01)
CPC (source: EP US)
C21D 9/67 (2013.01 - EP US); C21D 9/673 (2013.01 - EP US); C21D 1/767 (2013.01 - EP US)
Citation (search report)
See references of WO 9505487A1
Designated contracting state (EPC)
AT BE DE FR
DOCDB simple family (publication)
US 5730930 A 19980324; AT E175725 T1 19990115; CN 1043058 C 19990421; CN 1138352 A 19961218; DE 4327975 A1 19950223; DE 59407661 D1 19990225; EP 0714452 A1 19960605; EP 0714452 B1 19990113; RU 2127325 C1 19990310; WO 9505487 A1 19950223
DOCDB simple family (application)
US 57182596 A 19960216; AT 94926826 T 19940806; CN 94193104 A 19940806; DE 4327975 A 19930819; DE 59407661 T 19940806; EP 9402619 W 19940806; EP 94926826 A 19940806; RU 96105709 A 19940806