Treatment of an aluminum alloy melt

Metal treatment – Process of modifying or maintaining internal physical... – With casting or solidifying from melt

Reexamination Certificate

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Reexamination Certificate

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06994759

ABSTRACT:
In a process to reduce the susceptibility to dross-forming of an aluminium alloy melt with a content of at least 2.5 w. % magnesium, to the melt is added 0.02 to 0.15 w. % vanadium and less than 60 ppm beryllium. By the addition of vanadium, the beryllium addition can be reduced and at the same time the dross-forming resistance of the melt increased.

REFERENCES:
patent: 2336512 (1943-12-01), Stroup
patent: 4661172 (1987-04-01), Skinner et al.
patent: 5540791 (1996-07-01), Matsuo et al.
patent: 26 58 308 (1978-06-01), None
patent: 0 110 190 (1984-06-01), None
patent: 0 594 509 (1994-04-01), None
patent: 530919 (1976-10-01), None
Patent Abstracts of Japan, vol. 095, No. 011, Dec. 26, 1995 & JP 07 197177A (Sky Alum Co Ltd) Aug. 1, 1995.

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