Discoloration-resistant timepiece or jewelry part
    1.
    发明申请
    Discoloration-resistant timepiece or jewelry part 有权
    耐变色的钟表或首饰部分

    公开(公告)号:US20050053514A1

    公开(公告)日:2005-03-10

    申请号:US10916853

    申请日:2004-08-12

    CPC分类号: C22C5/02 A44C27/003 G04B37/22

    摘要: Timepiece or jewelry part manufactured in an alloy comprising at least 75% gold and between 15% and 18% copper or at least 18% copper, by weight. According to the invention, the alloy also comprises between 0.5% and 4% platinum with the exclusion of the 0.5% content when the copper content is equal to 15%. Preferably, the weight content of copper is between 20% and 22% for a weight content of platinum between 1.5% and 3%.

    摘要翻译: 以包含至少75%金和15%至18%铜或至少18%铜重量的合金制造的钟表或首饰部件。 根据本发明,当铜含量等于15%时,该合金还包含0.5%至4%的铂,排除0.5%的含量。 优选地,对于铂的重量含量在1.5%至3%之间,铜的重量含量在20%至22%之间。