EP 0027778 B1 19820922 - PROCESS FOR ANNEALING AND DEGREASING THIN STRIPS AND FOILS MADE OF ALUMINIUM OR ALUMINIUM ALLOYS
Title (en)
PROCESS FOR ANNEALING AND DEGREASING THIN STRIPS AND FOILS MADE OF ALUMINIUM OR ALUMINIUM ALLOYS
Publication
Application
Priority
CH 935579 A 19791018
Abstract (en)
[origin: US4325753A] On degrease annealing of thin strip and foil made of aluminum and aluminum alloys in an annealing furnace ozone is introduced into the furnace atmosphere. As a result of this the annealing time can be shortened or the annealing temperature lowered. Likewise the tendency for the foil to stick together when in coiled form is markedly reduced.
IPC 1-7
IPC 8 full level
C22F 1/04 (2006.01); C22F 1/02 (2006.01); C23G 5/00 (2006.01)
CPC (source: EP US)
C22F 1/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT NL SE
DOCDB simple family (publication)
US 4325753 A 19820420; AT E1590 T1 19821015; CA 1154364 A 19830927; DE 2948090 B1 19801113; DE 2948090 C2 19810619; DE 3060879 D1 19821104; EP 0027778 A1 19810429; EP 0027778 B1 19820922; ES 495883 A0 19811201; ES 8201225 A1 19811201; FI 66208 B 19840531; FI 66208 C 19840910; FI 803013 A 19810419; JP S5665969 A 19810604; NO 803094 L 19810421; YU 262480 A 19830930
DOCDB simple family (application)
US 18917480 A 19800922; AT 80810308 T 19801006; CA 362422 A 19801015; DE 2948090 A 19791129; DE 3060879 T 19801006; EP 80810308 A 19801006; ES 495883 A 19801013; FI 803013 A 19800925; JP 14555180 A 19801017; NO 803094 A 19801016; YU 262480 A 19801013