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1. EP3438302 - ALUMINUM ALLOY SHEET AND ALUMINUM ALLOY SHEET MANUFACTURING METHOD

Office
European Patent Office
Application Number 17775369
Application Date 30.03.2017
Publication Number 3438302
Publication Date 06.02.2019
Publication Kind A4
IPC
C22C 21/08
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
06with magnesium as the next major constituent
08with silicon
C22C 21/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
02with silicon as the next major constituent
C22C 21/12
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
12with copper as the next major constituent
C22F 1/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04of aluminium or alloys based thereon
05of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
CPC
C22C 21/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
02with silicon as the next major constituent
C22C 21/08
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
06with magnesium as the next major constituent
08with silicon
C22C 21/12
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
21Alloys based on aluminium
12with copper as the next major constituent
C22F 1/05
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
1Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04of aluminium or alloys based thereon
05of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
C22C 2202/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
CALLOYS
2202Physical properties
Applicants KOBE STEEL LTD
Inventors SHISHIDO HISAO
KITAMURA TOMOYUKI
Designated States
Priority Data 2016067007 30.03.2016 JP
2016213789 31.10.2016 JP
Title
(DE) ALUMINIUMLEGIERUNGSBLECH UND ALUMINIUMLEGIERUNGSBLECHHERSTELLUNGSVERFAHREN
(EN) ALUMINUM ALLOY SHEET AND ALUMINUM ALLOY SHEET MANUFACTURING METHOD
(FR) FEUILLE D'ALLIAGE D'ALUMINIUM ET PROCÉDÉ DE FABRICATION DE FEUILLE D'ALLIAGE D'ALUMINIUM
Abstract
(EN) In a differential scanning calorimetric curve of an Al-Mg-Si aluminum alloy sheet with a specific composition in which the total content of Mg and Si is greater than 1.2%, a ratio (B/A) of an endothermic peak within the temperature range of 150-230°C with a height A of 3-10 µW/mg to an exothermic peak within the temperature range of 230°C or above and below 330°C with a height B of 20-50 µW/mg is to be within a specified range.
(FR) La présente invention a trait à une feuille d'alliage d'aluminium et à un procédé de fabrication de feuille d'alliage d'aluminium. Sur une courbe calorimétrique d'analyse thermique différentielle d'une feuille d'alliage d'aluminium Al-Mg-Si possédant une composition spécifique dans laquelle la teneur totale en Mg et Si est supérieure à 1,2 %, le rapport (B/A) d'un pic endothermique dans la plage de température de 150 à 230 °C possédant une hauteur A de 3 à 10 µW/mg et d'un pic exothermique dans la plage de température de 230 °C à moins de 330 °C possédant une hauteur B de 20 à 50 µm se situe dans une fourchette spécifiée.