The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2015
Filed:
Dec. 10, 2009
Hisakazu Ito, Shizuoka, JP;
Hisakazu Ito, Shizuoka, JP;
NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;
Abstract
A method of production of an aluminum alloy inhibiting oxidation loss of the alloy melt without the use of Be which is liable to affect the human health. When preparing an aluminum alloy melt containing Mg, the method adds to the alloy, Ca, Sr, and/or Ba in a composition ratio within a range enclosed by lines connecting four points illustrated in FIG.of a point A (Ca: 18 at %, Sr: 0 at %, and Ba: 82 at %), point B (Ca: 14 at %, Sr: 34 at %, and Ba: 52 at %), point C (Ca: 33.8 at %, Sr: 66.2 at %, and Ba: 0 at %), point D (Ca: 100 at %, Sr: 0 at %, and Ba: 0 at %) and excluding point D so as to adjust the Ca, Sr, and Ba components in the melt to include Ca: 0.001 to 0.5 mass % and one or both of Sr: 0.01 to 2.8 mass % and Ba: 0.01 to 7.83 mass %.