EP 1280619 A1 20030205 - METHOD FOR CLEANING OXIDIZED HOT ROLLED COPPER RODS
Title (en)
METHOD FOR CLEANING OXIDIZED HOT ROLLED COPPER RODS
Title (de)
VERFAHREN ZUM SÄUBERN OXIDIERTER, WARMGEWALZTER KUPFERSTÄBE
Title (fr)
PROCEDE POUR NETTOYER DES BARRES DE CUIVRES OXYDEES, LAMINEES A CHAUD
Publication
Application
Priority
- DE 0101791 W 20010508
- DE 10023480 A 20000510
Abstract (en)
[origin: WO0187509A1] The invention relates to a method for cleaning oxidized, rolled copper rods coming out after casting from a rolling mill mounted downstream of a continuos casting device and having oxidic layers on their surfaces after exiting from the rolling mill. The method is characterized in that the oxidized, finish milled rod is guided through one or several reduction zones at a temperature of approximately 650 DEG C; a diluted, aqueous solution containing hydrocarbon is used in the reduction zone(s) as reduction liquid and the speed of the ongoing chemical reactions for the reduction of the two existing types of oxides is intensified by generating a bath turbulence with the aid of one or more ultrasound sources.
IPC 1-7
IPC 8 full level
B21B 45/00 (2006.01); B21B 45/02 (2006.01); B21B 45/06 (2006.01); B21B 45/08 (2006.01); B21C 43/00 (2006.01); C23G 1/10 (2006.01); C23G 5/00 (2006.01); C23G 5/032 (2006.01); B21B 3/00 (2006.01)
CPC (source: EP KR US)
B21B 45/02 (2013.01 - EP US); B21B 45/04 (2013.01 - KR); B21B 45/08 (2013.01 - EP US); B21C 43/00 (2013.01 - EP US); C23G 5/00 (2013.01 - EP US); B21B 3/003 (2013.01 - EP US); B21B 45/0206 (2013.01 - EP US); B21B 45/0224 (2013.01 - EP US); B21B 45/0242 (2013.01 - EP US); B21B 45/0275 (2013.01 - EP US); B21B 2003/005 (2013.01 - EP US)
Citation (search report)
See references of WO 0187509A1
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 0187509 A1 20011122; CN 1372497 A 20021002; DE 10023480 A1 20011115; EP 1280619 A1 20030205; JP 2003533591 A 20031111; KR 20020040746 A 20020530; MX PA01013159 A 20020902; US 2002134400 A1 20020926
DOCDB simple family (application)
DE 0101791 W 20010508; CN 01801221 A 20010508; DE 10023480 A 20000510; EP 01943060 A 20010508; JP 2001583957 A 20010508; KR 20027000334 A 20020109; MX PA01013159 A 20010508; US 3067002 A 20020312