EP 2095889 A1 20090902 - Method for producing aluminum strip excellent in degree of flatness
Title (en)
Method for producing aluminum strip excellent in degree of flatness
Title (de)
Verfahren zur Herstellung eines Aluminiumstreifens mit ausgezeichnetem Ebenheitsgrad
Title (fr)
Procédé de production d'excellente bande d'aluminium en termes de planéité
Publication
Application
Priority
JP 2008050435 A 20080229
Abstract (en)
Disclosed herein is a method for producing aluminum strips by rolling an aluminum strip at least twice as the final product, dividing the rolled strip into two halves, and winding up each of the divided strips into a coil. The method includes the steps of hot rolling an aluminum ingot, cold rolling the hot-rolled aluminum strip, thereby giving a strip at least twice as wide as the final product, cutting the wide strip longitudinally into two or more portions in the widthwise direction, and cold rolling the divided narrow strip. The secondary cold rolling is followed by trimming, stretch-leveling, and coiling. The resulting aluminum strip maintains good degree of flatness even though it experiences a high coil tension.
IPC 8 full level
B21B 3/00 (2006.01); B41N 1/08 (2006.01); C22F 1/04 (2006.01)
CPC (source: EP KR)
B21B 3/00 (2013.01 - EP KR); B21B 45/06 (2013.01 - KR); B41N 1/083 (2013.01 - EP KR); C21D 9/52 (2013.01 - KR); C22C 21/06 (2013.01 - KR); C22F 1/04 (2013.01 - EP); C22F 1/047 (2013.01 - KR); B21B 45/004 (2013.01 - EP); B21B 2003/001 (2013.01 - EP KR); B21B 2015/0021 (2013.01 - EP KR); B21B 2015/0071 (2013.01 - EP KR); B21B 2263/02 (2013.01 - EP KR); B21B 2263/04 (2013.01 - EP KR)
Citation (applicant)
- JP H1071425 A 19980317 - KOBE STEEL LTD
- JP 2003081504 A 20030319 - FUJI PHOTO FILM CO LTD
- JP 2004298947 A 20041028 - KOBE STEEL LTD
- JP H09202063 A 19970805 - FURUKAWA ELECTRIC CO LTD
Citation (search report)
- [A] JP H07173582 A 19950711 - FUJI PHOTO FILM CO LTD
- [AD] JP H09202063 A 19970805 - FURUKAWA ELECTRIC CO LTD
- [A] EP 0415238 A2 19910306 - FUJI PHOTO FILM CO LTD [JP]
- [A] JP S605861 A 19850112 - FURUKAWA ALUMINIUM, et al
Designated contracting state (EPC)
DE GB
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2095889 A1 20090902; EP 2095889 B1 20110907; CN 101518868 A 20090902; CN 101518868 B 20101222; JP 2009208082 A 20090917; JP 5202036 B2 20130605; KR 101031745 B1 20110429; KR 20090093851 A 20090902
DOCDB simple family (application)
EP 09000307 A 20090112; CN 200810183910 A 20081209; JP 2008050435 A 20080229; KR 20090016393 A 20090226