ALUMINUM ALLOY SHEET AND ITS MANUFACTURING METHOD

Japanese Patent JP2008144209

A

To provide an aluminum alloy sheet having excellent high temperature formability and its manufacturing method.

The aluminum alloy sheet is composed of an aluminum alloy having a composition consisting of 0.8 to 2.5 mass% Mn and the balance Al with inevitable impurities and is characterized in that solid-solution Mn content is made to 1.0 mass% and (solid-solution Mn content)/(precipitated Mn content)2.0 is satisfied. The method for manufacturing the aluminum alloy sheet is characterized as follows: the aluminum alloy is melted and cast at 0.1C/sec cooling rate into an ingot; homogenizing heat treatment, hot rolling and cold rolling are applied to the ingot to form a cold rolled sheet; and the cold rolled sheet is annealed under the conditions of 50C/min temperature-rise rate, 400 to 600C annealing temperature and 50C/min cooling rate.

JPH06341440	RETAINER FOR ROLLING BEARING
JPH0849034	ALUMINUM ALLOY SUPPORTING BODY FOR PLANOGRAPHIC PRINTING PLATE
JP3919996	ALUMINUM ALLOY FOR ANODIC OXIDATION TREATMENT, ALUMINUM ALLOY MEMBER HAVING ANODICALLY OXIDIZED FILM AND PLASMA TREATING SYSTEM

KUDO TAKESHI
MATSUMOTO KATSUSHI
ARIGA YASUHIRO

JP2006331270A

June 26, 2008

December 08, 2006

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KOBE STEEL LTD

C22C21/00; C22F1/04; C22F1/00

JP2001073104A	2001-03-21
JP2004043939A	2004-02-12
JP2004043938A	2004-02-12
JP2002275566A	2002-09-25
JP2000104149A	2000-04-11
JP2002105568A	2002-04-10

Isono Dozo
Etsuo Tada
Tetsuo Tomita

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