METHOD FOR CONTINUOUSLY ANNEALING ALUMINUM-ALLOY STRIP

Title:

METHOD FOR CONTINUOUSLY ANNEALING ALUMINUM-ALLOY STRIP

Document Type and Number:

Japanese Patent JP2002226957

Kind Code:

A

Abstract:

To continuously anneal a flat Al-alloy strip in a high yield.

In the method for continuously annealing the Al-alloy strip 1, steps of heat treatment, water quenching and shape detection are continuously performed in the order named. The shape of the Al-alloy strip 1 is continuously detected in the shape detection step; and, based on the results of the detection, cooling velocity for at least either of the top and the bottom surface of the Al-alloy strip 1 in the water quenching step is varied in a width direction to straighten the Al-alloy strip 1 into flat shape. Because the Al-alloy strip 1 can be straightened into flat shape, the occurrence of contact of the Al-alloy strip 1 with a gas injection nozzle for floating conveyance and the resultant occurrence of flaws, etc., can be prevented and manufacturing yield can be improved.

Inventors:

TAMEMOTO TAKASHI
MAEDA HIDEKI
IIDA HIROSHI

Application Number:

JP2001024833A

Publication Date:

August 14, 2002

Filing Date:

January 31, 2001

Export Citation:

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Assignee:

FURUKAWA ELECTRIC CO LTD

International Classes:

B21D1/00; C21D1/00; C21D9/573; C22F1/00; C22F1/04; (IPC1-7): C22F1/04; B21D1/00

Domestic Patent References:

JPH02254141A	1990-10-12
JPS56102567A	1981-08-17
JPS56102525A	1981-08-17

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