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US 4,571,352 AGranted
Method for coating aluminum metal body with aluminum alloy brazing filler metal
AssigneeSanden Corporation
InventorHisao Aoki
Life of this patent
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Abstract
Aluminum metal piece is dipped into a molten aluminum alloy brazing filler metal covered with a flux layer melted by heat of the molten filler metal, and thereafter is taken out therefrom. Thus, the aluminum metal piece is readily coated with a double coating film of the aluminum alloy brazing filler metal and the flux coating film.
Claims4
A method for coating an aluminum metal body with aluminum alloy brazing filler metal which comprises:
- preparing a molten aluminum alloy brazing filler metal in a melting tank, with a flux being melted on the upper surface of said molten aluminum alloy brazing filler metal;
- inserting said aluminum metal body into said molten aluminum alloy brazing filler metal through said molten flux layer;
- and
- taking said aluminum metal body out of said molten aluminum alloy brazing filler metal through said molten flux layer, whereby said aluminum metal body being coated with said aluminum alloy brazing filler metal and said flux.
1 more element
Dependencies are inferred from the claim text.