Process for the preparation of an alloy of gold and the alloy produced by the process
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United States of America Patent
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Feb 13, 2001
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N/A
app pub date -
Jun 9, 1998
filing date -
Jun 27, 1995
priority date (Note) -
Expired
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Abstract
A process for the production of an alloy based on gold, the titer of gold being between 8 and 22 karats, comprises three phases. In the first phase, copper and titanium are subjected to fusion forming a first fused product. In the second phase, the metallic product obtained in the first phase is fused with the other components of the alloy, including silver and zinc, except gold, and in the third phase, the metallic product obtained in the second phase is fused with gold. The alloy is free of nickel and cobalt and may contain other elements in small amounts such as silicon, boron, indium, iridium and ruthenium. The amount of titanium at the most is 1%.
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