| 摘要 |
A solid phos-copper base brazing alloy component for forming a brazed joint with a raised shoulder and little to no black oxide. The brazing alloys of the present invention are visually distinguishable from copper and copper alloy parts and may provide a good color match for silver and silver alloys, including sterling silver. The solid brazing components of the present invention may be used in forming brazed joints at low brazing temperatures and result in a joint that is ductile, smooth and corrosion resistant. The solid brazing components are provided in the form of wire, strip, foil or a preform, and thus are advantageously used in a wide variety of brazing applications including copper tubing and intricate jewelry. The brazing components of the present invention are made of an alloy having a liquidus temperature above 840° F. and consist essentially of about 4-10% phosphorus, about 0.1-8% tin, up to about 4% antimony, about 0.001-3% silicon, up to about 18% silver, up to about 3% nickel, up to about 3% manganese, with the balance being copper. Exemplary embodiments include about 0.1-18% silver and/or 0.1-3% nickel.
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