Corrosion-resistant coated copper metal and method for making th

Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...

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428939, B32B 1520

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active

060804971

ABSTRACT:
A corrosion-resistant coated copper metal coated with an alloy of tin wherein the tin content constitutes a majority of the alloy. The tin alloy may also include one or more metal additives to improve the coating process and/or to alter the properties of the tin alloy. A metal layer may be applied to the surface of the copper metal prior to applying the tin alloy. The copper material may be pre-treated prior to coating to remove surface oxides. The coating of the tin alloy involves heat to thereby form a heat created intermetallic layer. The coated copper metal can be subsequently treated with a passivation solution to remove the coated tin alloy and expose the intermetallic layer. The intermetallic layer includes copper and tin and exhibits excellent corrosion resistant properties.

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