Global Patent Index - EP 1259654 A1

EP 1259654 A1 2002-11-27 - METHOD FOR MAKING ALUMINIUM ALLOY STRIPS FOR MAKING CAN BODIES

Title (en)

METHOD FOR MAKING ALUMINIUM ALLOY STRIPS FOR MAKING CAN BODIES

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES BLECHES AUS ALUMINIUM-LEGIERUNG GEEIGNET ZUR HERSTELLUNG VON DOSENKÖRPERN

Title (fr)

PROCEDE DE FABRICATION DE BANDES EN ALLIAGE D'ALUMINIUM APTES A LA FABRICATION DE CORPS DE BOITES

Publication

EP 1259654 A1 (FR)

Application

EP 01909918 A

Priority

  • FR 0100576 W
  • FR 0002780 A

Abstract (en)

[origin: FR2805827A1] A method for the production of strip for the production of drink can bodies consists of producing an aluminium alloy containing (by weight) 1.1 to 1.7% Mg, 1.2 to 1.6% Mn, 0.05 to 0.45% Si, 0.05 to 0.60% Fe, up to 0.40% Cu, up to 0.14% Cr, up to 0.08% Ti, other elements up to 0.07% each and a total of 0.25%, the rest being aluminium; treating the molten alloy by injecting gas; casting the alloy between rolls to form a strip with a thickness of less than 5 mm, during casting a mould dressing is applied to the rolls; homogenising the strip at between 450 and 530 deg C for 2 to 20 hours; cold rolling the strip in several passes; intermediate annealing at 300 to 400 deg C for 1 to 12 hours; and cold rolling in one or more passes to obtain the final thickens An Independent claim is included for the fabrication of drink can bodies with this aluminium alloy by pressing and drawing.

IPC 1-7 (main, further and additional classification)

C22C 21/08; B22D 1/00; B22D 11/06; C22B 21/06; C22C 21/00; C22F 1/04; C22F 1/047

IPC 8 full level (invention and additional information)

B22D 11/00 (2006.01); B22D 1/00 (2006.01); B22D 11/06 (2006.01); B22D 11/20 (2006.01); C22C 21/00 (2006.01); C22C 21/08 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01); C22F 1/047 (2006.01)

CPC (invention and additional information)

B22D 1/002 (2013.01); B22D 11/0622 (2013.01); C22C 21/00 (2013.01); C22C 21/08 (2013.01); C22F 1/04 (2013.01); C22F 1/047 (2013.01)

Citation (search report)

See references of WO 0164965A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

FR 2805827 A1 20010907; FR 2805827 B1 20020412; AR 027592 A1 20030402; AU 3750901 A 20010912; BR 0108862 A 20030429; CN 1183265 C 20050105; CN 1404534 A 20030319; EP 1259654 A1 20021127; JP 2003525353 A 20030826; NO 20024182 A 20020902; NO 20024182 D0 20020902; WO 0164965 A1 20010907

INPADOC legal status


2006-07-05 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20051114

2005-11-30 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: NOVELIS, INC.

2005-08-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20050704

2002-11-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020909

2002-11-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI