ALUMINUM ALLOY EXPANDED PRODUCT AND METHOD FOR PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide an aluminum alloy expanded product exhibiting a color tone of pale gray to dark gray, requiring a low cost, and having an excellent surface quality, as well as a method for producing the same.SOLUTION: The aluminum alloy expanded product has a chemical composition in...

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Bibliographic Details
Main Author HATTA HIDECHIKA
Format Patent
LanguageEnglish
Published 06.06.2013
Subjects
ALLOYS
APPARATUS THEREFOR
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:PROBLEM TO BE SOLVED: To provide an aluminum alloy expanded product exhibiting a color tone of pale gray to dark gray, requiring a low cost, and having an excellent surface quality, as well as a method for producing the same.SOLUTION: The aluminum alloy expanded product has a chemical composition including Zn: 7.2-8.7% (mass%, the same shall apply hereinafter) excluding 7.2%, Mg: 1.3-2.1%, Cu: less than 0.50%, Fe: 0.30% or less, Si: 0.30% or less, Mn: less than 0.05%, Cr: 0.20% or less, Zr: less than 0.05%, Ti: 0.001-0.05%, with the balance being Al and inevitable impurities. The proof stress is 300 MPa or higher. An L* value specified by JIS Z8729 (ISO 7724-1) as measured after anodization using a sulfate bath is 45 or more and less than 85.
Bibliography:Application Number: JP20110253483