发明授权
- 专利标题： Rose-colored gold alloy compositions with reversible hardness characteristics
- 专利标题（中）： 具有可逆硬度特性的玫瑰色金合金组成
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申请号： US11124935申请日： 2005-05-09
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公开(公告)号： US07413705B2公开(公告)日： 2008-08-19
- 发明人: Dwarika P. Agarwal , Grigory Raykhtsaum
- 申请人： Dwarika P. Agarwal , Grigory Raykhtsaum
- 申请人地址： US MA North Attleboro
- 专利权人： Leach & Garner Company
- 当前专利权人： Leach & Garner Company
- 当前专利权人地址： US MA North Attleboro
- 代理机构： Phillips Lytle LLP
- 主分类号： C22C5/02
- IPC分类号： C22C5/02
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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