发明名称 |
Rose-colored gold alloy compositions with reversible hardness characteristics |
摘要 |
Improved 14-karat rose-colored gold alloy compositions include: about 58.5% gold; about 9.0-12.0% silver; about 0.0-0.2% zinc; about 0.3-0.4% cobalt; about 0.0-0.02% iridium; and about 29.0-33.0% copper. Improved 18-karat rose-colored gold alloy compositions include: about 75.2% gold; about 7.0% silver; about 0.0-0.2% zinc; about 0.3-0.4% cobalt; about 0.0-0.02% iridium; and about 17.0-17.5% copper. The hardness of these compositions are capable of being selectively changed between their respective annealed-hardness and age-hardness values. The color of these compositions is between about 5-7 CieLab a* color units and between about 17-21 CieLab b* color units.
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申请公布号 |
US2006251539(A1) |
申请公布日期 |
2006.11.09 |
申请号 |
US20050124935 |
申请日期 |
2005.05.09 |
申请人 |
AGARWAL DWARIKA P;RAYKHTSAUM GRIGORY |
发明人 |
AGARWAL DWARIKA P.;RAYKHTSAUM GRIGORY |
分类号 |
C22C5/02 |
主分类号 |
C22C5/02 |
代理机构 |
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