Fluxing agent for metal cast joining

Patent · Tue Nov 05 00:00:00 EST 2002

OSTI ID:874849

Gunkel, Ronald W ^[1]; Podey, Larry L ^[2]; Meyer, Thomas N ^[3]

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1. Lower Burrell, PA
2. Greensburg, PA
3. Murrysville, PA

A method of joining an aluminum cast member to an aluminum component. The method includes the steps of coating a surface of an aluminum component with flux comprising cesium fluoride, placing the flux coated component in a mold, filling the mold with molten aluminum alloy, and allowing the molten aluminum alloy to solidify thereby joining a cast member to the aluminum component. The flux preferably includes aluminum fluoride and alumina. A particularly preferred flux includes about 60 wt. % CsF, about 30 wt. % AlF.sub.3, and about 10 wt. % Al.sub.2 O.sub.3.

• DOE Contract Number: 86X-SU545C
• Assignee: Alcoa Inc. (Pittsburgh, PA)
• Patent Number(s): US 6474397
• Application Number: 09/766023
• OSTI ID: 874849
• Country of Publication: United States
• Language: English

Related Subjects

fluxing
agent
metal
cast
joining
method
aluminum
component
steps
coating
surface
flux
comprising
cesium
fluoride
placing
coated
mold
filling
molten
alloy
allowing
solidify
alumina
60
wt
csf
30
alfsub3
10
alsub2
osub3
molten aluminum
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