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1. 发明授权

US5749979A 14K gold alloy with silver, copper, zinc and cobalt 失效
标题翻译： 14K金合金，银，铜，锌和钴
公开(公告)号：US5749979A
公开(公告)日：1998-05-12
申请号：US707067
申请日：1996-09-03
申请人： Richard Carrano , Mark C. Hanna
发明人： Richard Carrano , Mark C. Hanna
IPC分类号： A44C27/00 , C22C5/02
CPC分类号： A44C27/003 , C22C5/02
摘要： A 14K gold alloy includes by weight percentages about 58.5 to 58.8% gold, 12.8 to 14.4% silver, 22.9 to 24.8% copper, 3.5 to 4.1% zinc and 0.2 to 0.5% cobalt. The alloy exhibits a relatively large uniform, fine grain size and may be repetitively hardened and softened as desired. The brightness of the alloy is exceptional and the color, which is quite distinctive among 14K gold alloys, is similar to rich colored 18K gold alloys.
摘要翻译： 14K金合金包括重量百分比为约58.5至58.8％的金，12.8至14.4％的银，22.9至24.8％的铜，3.5至4.1％的锌和0.2至0.5％的钴。该合金表现出相对较大的均匀的细晶粒度，并可根据需要重复硬化和软化。合金的亮度是特殊的，14K金合金中相当独特的颜色与富有色的18K金合金相似。

2. 发明申请

US20060231171A1 Method for adding boron to metal alloys 审中-公开
公开(公告)号：US20060231171A1
公开(公告)日：2006-10-19
申请号：US11405188
申请日：2006-04-17
申请人： Samuel Davis , Peter Johns , Neil Baker , John Riskalla , Richard Carrano
发明人： Samuel Davis , Peter Johns , Neil Baker , John Riskalla , Richard Carrano
IPC分类号： C22C9/04 , C22C5/08 , C22C5/02 , B22D17/00
CPC分类号： C22B11/02 , C22B9/103 , C22B9/106 , C22C1/06 , C22C5/02 , C22C5/08 , C22C9/00
摘要： A method to grain refine and deoxidize a precious metal alloy or a master alloy includes the steps of (a) forming a precursor melt consisting essentially of constituents of the precious metal alloy or master alloy and inevitable impurities; (b) dispersing a compound selected from the group consisting of boron containing metal hydrides, boron containing metal fluorides and mixtures thereof throughout the precursor melt; and (c) solidifying the boron containing precious melt alloy or master alloy. One suitable compound is solid sodium borohydride (sodium tetrahydroborate). To minimize evaporation of the boron on contact with the precursor alloy melt, the sodium borohydride may be wrapped in a metal foil formed from constituents of the precious metal alloy or master alloy. The cast precious metal alloy or master alloy has been found to have a reduced number of hard spots and reduced silicon contamination when compared to conventional casting methods.

3. 发明申请

US20060260778A1 Method for adding boron to metal alloys 审中-公开
标题翻译：硼添加到金属合金中的方法
公开(公告)号：US20060260778A1
公开(公告)日：2006-11-23
申请号：US11132621
申请日：2005-05-19
申请人： Samuel Davis , Neil Baker , John Riskalla , Richard Carrano
发明人： Samuel Davis , Neil Baker , John Riskalla , Richard Carrano
IPC分类号： B22D27/00
CPC分类号： B22D27/20 , B22D11/001 , B22D21/00 , B22F2998/00 , B22F9/08
摘要： A method to grain refine and deoxidize a precious metal alloy or a master alloy includes the steps of (a) forming a precursor melt consisting essentially of constituents of the precious metal alloy or master alloy and inevitable impurities; (b) dispersing a compound selected from the group consisting of boron containing metal hydrides, boron containing metal fluorides and mixtures thereof throughout the precursor melt; and (c) solidifying the boron containing precious melt alloy or master alloy. One suitable compound is solid sodium borohydride (sodium tetrahydroborate). To minimize evaporation of the boron on contact with the precursor alloy melt, the sodium borohydride may be wrapped in a metal foil formed from constituents of the precious metal alloy or master alloy. The cast precious metal alloy or master alloy has been found to have a reduced number of hard spots and reduced silicon contamination when compared to conventional casting methods.
摘要翻译：一种对贵金属合金或母合金进行晶粒细化和脱氧的方法包括以下步骤：（a）形成基本上由贵金属合金或母合金的成分组成的前体熔体和不可避免的杂质; （b）将选自含硼金属氢化物，含硼金属氟化物及其混合物的化合物的化合物分散在整个前体熔体中; 和（c）固化含硼珍贵熔体合金或母合金。一种合适的化合物是固体硼氢化钠（四氢硼酸钠）。为了最小化与前体合金熔体接触时硼的蒸发，硼氢化钠可以包裹在由贵金属合金或母合金的成分形成的金属箔中。与传统的铸造方法相比，已经发现铸造的贵金属合金或母合金具有减少的硬斑数量和减少的硅污染。

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