EP 1276918 A1 20030122 - METHOD AND DEVICE FOR TREATING THE SURFACES OF METALLIC STRIP MATERIAL, ESPECIALLY FOR PICKLING ROLLED MATERIAL
Title (en)
METHOD AND DEVICE FOR TREATING THE SURFACES OF METALLIC STRIP MATERIAL, ESPECIALLY FOR PICKLING ROLLED MATERIAL
Title (de)
VERFAHREN UND VORRICHTUNG ZUM BEHANDELN DER OBERFLÄCHEN VON METALLISCHEN, INSBESONDERE ZUM BEIZEN VON WALZGUT
Title (fr)
PROCEDE ET DISPOSITIF DESTINES A TRAITER LES SURFACES D'UN MATERIAU METALLIQUE EN BANDE, EN PARTICULIER A DECAPER UN MATERIAU LAMINE
Publication
Application
Priority
- DE 10020633 A 20000427
- EP 0104489 W 20010420
Abstract (en)
[origin: WO0181655A1] The invention relates to a method and a device for treating surfaces of metallic strip material (1), especially for pickling rolled material, in a treatment channel (2), with a pickling medium (3) containing acid. Jets (4) are set in the direction in which the strip is transported (5) at the entrance to the channel (2a) and in the opposite direction that in which the strip is transported at the exit of the channel (2b). The aim of the invention is to produce a closed liquid film with some turbulence on the surface of the strip. Said film should be maintained as far as the exit (2b) of the channel. To this end, additional jets (4) between the channel entrance (2a) and the channel exit (2b) are oriented in the opposite direction to the direction in which the strip is transported (5) and the pickling medium (3) is further delayed in flowing out at the channel exit (2b) by mechanical resistance devices (7) situated in the path of the transport channel (6).
IPC 1-7
IPC 8 full level
CPC (source: EP KR US)
C23G 3/02 (2013.01 - KR); C23G 3/023 (2013.01 - EP US); C23G 3/024 (2013.01 - EP US)
Citation (examination)
- EP 0795629 A1 19970917 - ANDRITZ PATENTVERWALTUNG [AT]
- DE 4108516 A1 19910919 - HITACHI LTD [JP]
- See also references of WO 0181655A1
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)
WO 0181655 A1 20011101; AU 6736101 A 20011107; AU 782365 B2 20050721; CA 2402423 A1 20011101; CN 1203214 C 20050525; CN 1426493 A 20030625; DE 10020633 A1 20011108; EG 22830 A 20030930; EP 1276918 A1 20030122; JP 2003531299 A 20031021; KR 100752707 B1 20070829; KR 20020091052 A 20021205; MX PA02006291 A 20030212; MY 135420 A 20080430; TW 574426 B 20040201; US 2003000551 A1 20030102; US 7011714 B2 20060314
DOCDB simple family (application)
EP 0104489 W 20010420; AU 6736101 A 20010420; CA 2402423 A 20010420; CN 01808731 A 20010420; DE 10020633 A 20000427; EG 20010404 A 20010424; EP 01945024 A 20010420; JP 2001578721 A 20010420; KR 20027006516 A 20020522; MX PA02006291 A 20010420; MY PI20011931 A 20010425; TW 90109859 A 20010425; US 16921302 A 20020627