JP2000119773A - Silver alloy for accessory - Google Patents
Silver alloy for accessoryInfo
- Publication number
- JP2000119773A JP2000119773A JP10293362A JP29336298A JP2000119773A JP 2000119773 A JP2000119773 A JP 2000119773A JP 10293362 A JP10293362 A JP 10293362A JP 29336298 A JP29336298 A JP 29336298A JP 2000119773 A JP2000119773 A JP 2000119773A
- Authority
- JP
- Japan
- Prior art keywords
- silver alloy
- accessories
- weight
- silver
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Adornments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、指輪やブロー
チ、ペンダント等の装身具として使用したときに、汗等
で黒く変色したりすることのない装身具用銀合金を提供
しようとするものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention aims to provide a silver alloy for accessories which does not discolor black due to sweat or the like when used as accessories such as rings, brooches and pendants.
【０００２】[0002]
【従来の技術】近年、銀合金は指輪やブローチ、ペンダ
ント等の装身具として広く使用されてきているが、従来
の銀合金からなる装身具は、使用中に汗等と接触して黒
く変色してしまうことが避けられなかった。そこで耐変
色性の代表的な銀合金として、Ａｕ−Ａｇ−Ｐｄ合金が
知られている。2. Description of the Related Art In recent years, silver alloys have been widely used as accessories such as rings, brooches, and pendants. However, conventional accessories made of silver alloy are discolored to black upon contact with sweat or the like during use. That was inevitable. Therefore, an Au-Ag-Pd alloy is known as a typical silver alloy having discoloration resistance.
【０００３】また腕時計ケース用の銀合金として、Ａｇ
にＰｄ，Ｓｎ，Ｚｎ，を添加し、あるいはこれにＭｇ，
Ａｌ，Ｇｅ，Ｉｎ，Ｎｉ等を添加した銀合金（特開昭５
３−４３６２０号公報参照）が知られている。As a silver alloy for a watch case, Ag is used.
Pd, Sn, Zn, or Mg,
Silver alloys containing Al, Ge, In, Ni, etc.
3-43620) is known.
【０００４】さらに、耐汗性、耐硫化性の向上を目的と
する、Ａｇ−Ｐｄ−Ａｕからなる銀合金（特開昭６０−
９８４４号公報参照）や、Ａｇ−Ｐｔベースに特定量の
Ｐｄ，Ｚｎ，Ｉｎ，Ｓｎの一種以上を添加した銀合金
（特開昭６１−７３８４７号、特開昭６１−７３８４８
号公報参照）、Ａｇに特定量のＰｄ，Ｒｕ，Ｉｎを添加
した銀合金（特開平１−２７５７２６号公報参照）等が
提案されている。Further, a silver alloy made of Ag-Pd-Au for the purpose of improving sweat resistance and sulfidation resistance (JP-A-60-1985)
No. 9844) or a silver alloy obtained by adding a specific amount of one or more of Pd, Zn, In and Sn to an Ag-Pt base (Japanese Patent Application Laid-Open Nos. 61-73847 and 61-73848).
Japanese Patent Application Laid-Open No. 1-275726) and silver alloys obtained by adding specific amounts of Pd, Ru, and In to Ag (see JP-A-1-275726).
【０００５】[0005]
【発明が解決しようとする課題】ところで貴金属製装身
具においては、長年使用しても汗等で変色しない上、光
輝性を損なわれることがないということが極めて重要な
課題である。特に汗や経年変化で変色し、洗っても元に
戻らない場合には、その価値は使用できないほどに低下
してしまい、購入意欲をそぐ結果となってしまう。However, it is extremely important for jewelry made of precious metal that it does not discolor due to sweat or the like even if it is used for many years and that the glitter is not impaired. In particular, if the color changes due to sweat or aging and does not return to its original state even after washing, its value is reduced to such an extent that it cannot be used, resulting in disappointing purchase.
【０００６】しかしながら、上記のうちＡｕ−Ａｇ−Ｐ
ｄ合金や、ＡｇにＰｄ，Ｓｎ，Ｚｎ，を添加し、あるい
はこれにＭｇ，Ａｌ，Ｇｅ，Ｉｎ，Ｎｉ等を添加した銀
合金においては、いずれもＰｄを添加量で１０重量％
（重量％、以下同じ）以上含有することが必須要件にな
っている。したがって高価であることはもちろん、色調
も黒灰色を帯びているため、銀本来の美しい色調と明る
さを損なうという問題点を有している。However, among the above, Au-Ag-P
In the case of a d alloy or a silver alloy in which Pd, Sn, Zn, or the like is added to Ag, or in which Mg, Al, Ge, In, Ni, or the like is added, Pd is added in an amount of 10% by weight.
(% By weight, the same applies hereinafter) is an essential requirement. Therefore, not only is it expensive, but also the color tone is black-gray, so that it has the problem of impairing the beautiful color tone and brightness inherent in silver.
【０００７】また、微量成分としてＡｇにＰｔ、Ｐｄ等
を添加する種々のの用途の銀合金においては、黒く変色
することをある程度押さえることができても、あくまで
も短期的な改善策であり、銀合金の大部分を占めるＡｇ
の成分量が変わらないために根本的な解決にはなり得な
かった。Further, in silver alloys for various uses in which Pt, Pd, or the like is added to Ag as a trace component, even if the discoloration to black can be suppressed to some extent, it is a short-term improvement measure. Ag accounts for most of the alloy
Could not be a fundamental solution because the amounts of the components did not change.
【０００８】本発明者は従来例の上記欠点を解消しよう
として鋭意研究した結果、Ａｇの成分にＡｌの成分を一
定量以上添加することにより、長年使用しても汗等で変
色しない上、光輝性が損なわれることのない装身具用銀
合金を発明するに至ったのである。The inventor of the present invention has made intensive studies to solve the above-mentioned disadvantages of the prior art. As a result, by adding an Al component to an Ag component in a certain amount or more, even if used for a long time, it does not discolor due to sweat or the like, and has a brilliant effect. They have invented a silver alloy for accessories that does not impair the properties.
【０００９】[0009]
【課題を解決するための手段】すなわち、この発明の装
身具用銀合金は、スズ２〜７重量％、インジウム１〜５
重量％、銅０．１〜１重量％、亜鉛０．１〜１重量％、
アルミニウム０．１〜０．２重量％、残余を銀として、
全体が１００重量％になるようにしたことを特徴とする
ものである。That is, the silver alloy for accessories of the present invention comprises 2 to 7% by weight of tin and 1 to 5% of indium.
Weight%, copper 0.1-1 weight%, zinc 0.1-1 weight%,
0.1-0.2% by weight of aluminum, the balance being silver
The entirety is 100% by weight.
【００１０】この発明を以上のように構成する理由は、
装身具用銀合金にＰｔを添加しなくでも、長年使用して
も汗等で何ら変色しない上、光輝性を損なわれることが
ないという効果を備え、しかも安価な装身具用銀合金を
提供することができるようにしたものである。The reason for configuring the present invention as described above is as follows.
Even if Pt is not added to the silver alloy for accessories, it is possible to provide an inexpensive silver alloy for accessories that has the effect of not discoloring due to sweat or the like even when used for many years and does not impair the glitter. It was made possible.
【００１１】この発明はＡｇの成分量を以上のように構
成したので、長年使用しても汗等で変色しない上、光輝
性が損なわれることのない装身具用銀合金を提供するこ
とができるようになった。According to the present invention, since the amount of Ag is constituted as described above, it is possible to provide a silver alloy for accessories which does not discolor due to sweat or the like even when used for many years and does not impair the glitter. Became.
【００１２】しかも、装身具用銀合金として得ようとす
る原価や光輝性等の素材の雰囲気等を損なうこともな
く、高品質でしかも適正な価格の装身具用銀合金を提供
できるようになった。Moreover, it is possible to provide a silver alloy for accessories of high quality and at an appropriate price without impairing the cost of the silver alloy for accessories and the atmosphere of the material such as glitter.
【００１３】[0013]
【発明の実施の形態】以下この発明の装身具用銀合金の
実施の形態を、実施例を用いて詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the silver alloy for accessories of the present invention will be described below in detail with reference to examples.
【００１４】[0014]
【実施例】表１に示す組成の合金試料Ｎｏ．１〜１０を
作製した。作製に当たっては、図１のようにＡｇを加熱
して沸点下で溶解させ、さらにＡｇにＳｎ，Ｉｎ，Ｃ
ｕ，Ａｌをそれぞれ特定量添加して、図２のように溶融
したＡｇと上記他の成分とを特定の割合で混合し、さら
に図３のようにＺｎを特定量添加して撹拌した。得た溶
融銀合金を型に流し込み、銀合金の地金を作製した。EXAMPLE An alloy sample No. having the composition shown in Table 1 was prepared. 1 to 10 were produced. In the preparation, Ag was heated and dissolved at a boiling point as shown in FIG. 1, and Sn, In, C
A specific amount of each of u and Al was added, Ag was melted as shown in FIG. 2 and the other components were mixed at a specific ratio, and a specific amount of Zn was added and stirred as shown in FIG. The obtained molten silver alloy was poured into a mold to prepare a silver alloy base metal.
【００１５】これらの銀合金は、それぞれエメリーペー
パー等で表面研磨して色調と明るさを調査するととも
に、０．１重量％のＮａ2Ｓおよび５重量％のＮａＣｌ
水溶液に浸漬して変色度合いを調査した。なお、変色度
合いの判定試験は、表面研磨した試料を０．１重量％の
Ｎａ2Ｓおよび５重量％のＮａＣｌ水溶液に１０時間浸
漬して行ない、その判定結果は大きな変色を×、若干の
変色を△、変色なく、当初の表面光沢を維持したものを
○で示した。明るさの評価は、「純銀と同等のもの」を
◎、「純銀に近いもの」を○、「純銀に似たもの」を
△、「多少純銀の感じがするもの」を×とした。Each of these silver alloys is surface-polished with an emery paper or the like to examine the color tone and the brightness. Further, 0.1% by weight of Na 2 S and 5% by weight of NaCl
It was immersed in an aqueous solution to examine the degree of discoloration. The test for determining the degree of discoloration was carried out by immersing the surface-polished sample in an aqueous solution of 0.1% by weight of Na 2 S and 5% by weight of NaCl for 10 hours. △, and those in which the initial surface gloss was maintained without discoloration were indicated by ○. The evaluation of brightness was evaluated as ◎ for “equivalent to pure silver”, ○ for “close to pure silver”, Δ for “similar to pure silver”, and × for “somewhat pure silver”.
【００１６】 （以下余白）(Hereinafter, blank)
【００１７】[0017]
【表１】 上記表１に明らかなように、Ａｌの添加量が１重量％未
満であると、ＮａＣｌに対しては耐変色性を示すが、一
方、Ｎａ2Ｓに対しては良好な耐変色性を得ることがで
きない。[Table 1] As is clear from Table 1, when the added amount of Al is less than 1% by weight, it shows discoloration resistance with respect to NaCl, but obtains good discoloration resistance with respect to Na 2 S. I can't.
【００１８】また表１からＡｌの添加量が、Ａｇの添加
量の１重量％以上であれば耐変色性を同様に改善するこ
とができ、また銀本来の色調を保つこともできることが
判明した。なおＡｌが２重量％以上のときは、製品の加
工性が損なわれるという問題が発生した。Further, from Table 1, it was found that when the amount of Al added was 1% by weight or more of the amount of Ag added, the discoloration resistance could be similarly improved, and the original color tone of silver could be maintained. . When Al is 2% by weight or more, there is a problem that workability of a product is impaired.
【００１９】[0019]
【発明の効果】この発明はＡｇの成分量を以上のように
構成したので、長年使用しても汗等で変色しない上、光
輝性が損なわれることのない装身具用銀合金を提供する
ことができるようになった。According to the present invention, since the amount of Ag is constituted as described above, it is possible to provide a silver alloy for accessories which does not discolor due to sweat or the like and does not impair the glitter even when used for many years. Now you can.
【００２０】しかも、装身具用銀合金として得ようとす
る原価や光輝性等の素材の雰囲気等を損なうこともな
く、高品質でしかも適正な価格の装身具用銀合金を提供
できるようになった。Further, it is possible to provide a silver alloy for accessories of high quality and at an appropriate price without impairing the cost of the silver alloy for accessories and the atmosphere of the material such as glitter.
【図１】Ａｇを加熱して溶解した状態を示す概略図であ
る。FIG. 1 is a schematic diagram showing a state where Ag is heated and dissolved.
【図２】ＰｄおよびＩｎ、その他の成分を添加した状態
を示す概略図である。FIG. 2 is a schematic diagram showing a state where Pd, In, and other components are added.
【図３】Ｚｎを添加した状態を示す概略図である。FIG. 3 is a schematic diagram showing a state in which Zn is added.
【図４】溶解した銀合金を型に流し込んだ状態を示す概
略図である。FIG. 4 is a schematic view showing a state where a molten silver alloy is poured into a mold.
Claims (1)
量％、銅０．１〜１重量％、亜鉛０．１〜１重量％、ア
ルミニウム０．１〜０．２重量％、残余を銀として、全
体が１００重量％になるようにしたことを特徴とする装
身具用銀合金。1. 2 to 7% by weight of tin, 1 to 5% by weight of indium, 0.1 to 1% by weight of copper, 0.1 to 1% by weight of zinc, 0.1 to 0.2% by weight of aluminum and the balance A silver alloy for accessories, wherein the total amount of silver is 100% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10293362A JP2000119773A (en) | 1998-10-15 | 1998-10-15 | Silver alloy for accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10293362A JP2000119773A (en) | 1998-10-15 | 1998-10-15 | Silver alloy for accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000119773A true JP2000119773A (en) | 2000-04-25 |
Family
ID=17793815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10293362A Pending JP2000119773A (en) | 1998-10-15 | 1998-10-15 | Silver alloy for accessory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000119773A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1633898A2 (en) * | 2003-04-29 | 2006-03-15 | Steridyne Laboratories, Inc. | Anti-tarnish silver alloy |
| CN113444914A (en) * | 2021-07-19 | 2021-09-28 | 福建阿石创新材料股份有限公司 | Silver-based alloy and preparation method thereof, silver alloy composite film and application thereof |
-
1998
- 1998-10-15 JP JP10293362A patent/JP2000119773A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1633898A2 (en) * | 2003-04-29 | 2006-03-15 | Steridyne Laboratories, Inc. | Anti-tarnish silver alloy |
| EP1633898A4 (en) * | 2003-04-29 | 2008-07-09 | Steridyne Lab Inc | Anti-tarnish silver alloy |
| CN113444914A (en) * | 2021-07-19 | 2021-09-28 | 福建阿石创新材料股份有限公司 | Silver-based alloy and preparation method thereof, silver alloy composite film and application thereof |
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