JP2001040438A - Silver alloy for decoration - Google Patents
Silver alloy for decorationInfo
- Publication number
- JP2001040438A JP2001040438A JP11215930A JP21593099A JP2001040438A JP 2001040438 A JP2001040438 A JP 2001040438A JP 11215930 A JP11215930 A JP 11215930A JP 21593099 A JP21593099 A JP 21593099A JP 2001040438 A JP2001040438 A JP 2001040438A
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- JP
- Japan
- Prior art keywords
- silver
- copper
- palladium
- platinum
- 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.)
- Granted
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は銀合金に関し、特に
装飾部材、時計部品、メガネ部品などに好適に用いるこ
とができる銀合金に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver alloy, and more particularly to a silver alloy that can be suitably used for decorative members, watch parts, eyeglass parts, and the like.
【０００２】[0002]
【従来の技術】銀や銀合金は古くから装飾部材として広
く用いられている。銀合金の代表的なものは、銀９２．
５ｗｔ％−銅合金（スターリングシルバー）であり、ほ
かに装飾材料としては銀８０ｗｔ％以上の合金が使用さ
れ、銀９０ｗｔ％−銅合金（コインシルバー）や銀９
５．８％−銅合金（ブリタニアシルバー）もある。2. Description of the Related Art Silver and silver alloys have been widely used as decorative members since ancient times. A typical silver alloy is silver 92.
5 wt% -copper alloy (sterling silver), and an alloy of 80 wt% or more silver is used as a decoration material, and 90 wt% of silver-copper alloy (coin silver) or silver 9
There is also a 5.8% -copper alloy (Britania Silver).
【０００３】銀は平常の状態では酸素とは反応しない
が、硫化ガスや亜硫酸ガスとは容易に反応し、その表面
に硫化銀の黒色被膜を生成して装飾効果を減じてしま
う。[0003] In a normal state, silver does not react with oxygen, but easily reacts with a sulfide gas or a sulfur dioxide gas to form a black coating of silver sulfide on its surface, thereby reducing the decorative effect.
【０００４】このような硫化を防止するために、その表
面に強く結合する有機化合物を塗布したり、金もしくは
ロジウムメッキを施したり、合金化することが行われて
いる。In order to prevent such sulfuration, an organic compound that strongly binds to the surface, gold or rhodium plating, or alloying has been used.
【０００５】銀に銅を合金化すると、銅１４ｗｔ％くら
いまでは、白色で機械的性質を向上させることができ、
且つ融点も下がることから、鋳造性も向上するが、耐硫
化性を改善することはできず、耐蝕性は悪くなる。これ
は銀への銅の固溶限を越えて２相共晶になり、局部電池
化して変色するためである。When copper is alloyed with silver, up to about 14% by weight of copper, it is possible to improve mechanical properties in white.
In addition, since the melting point is lowered, the castability is improved, but the sulfidation resistance cannot be improved, and the corrosion resistance deteriorates. This is because the two-phase eutectic is formed beyond the solid solubility limit of copper in silver, and it becomes a local battery and discolors.
【０００６】耐硫化性を改善する銀合金としては、銀−
パラジウム、銀−白金、銀−金が知られている。この銀
合金において、銀の硫化を完全に防止するためには、パ
ラジウム４０ｗｔ％、白金６０ｗｔ％、金７０ｗｔ％以
上添加する必要性があり、コストが高くなったり、融点
が高くなって鋳造性が悪くなる。[0006] Silver alloys for improving the sulfuration resistance include silver-
Palladium, silver-platinum and silver-gold are known. In this silver alloy, in order to completely prevent the sulfuration of silver, it is necessary to add 40% by weight of palladium, 60% by weight of platinum, and 70% by weight of gold or more. become worse.
【０００７】一方、近時は、装飾用の貴金属材料でも多
様の色彩のものが求められている。金では黄色系ものや
ピンク系のものが市場で受け入れられているが、装飾用
の銀合金でも同様に多色な色彩のものが求められてい
る。On the other hand, recently, there are demands for precious metal materials for decoration of various colors. Gold and yellow or pink are accepted in the market, but silver alloys for decoration are also required to be multicolored.
【０００８】本発明者はこのような状況に鑑みて鋭意研
究を重ねた結果、銀に銅を添加し、２相共晶組成であり
ながらさらに貴金属（パラジウム、白金、金）を添加す
れば、生活状況に置いて局部電池化を防止することがで
きるピンク系の銀合金が得られることを知見した。The present inventor has conducted intensive studies in view of such a situation. As a result, if copper is added to silver and a noble metal (palladium, platinum, gold) is further added while having a two-phase eutectic composition, We found that a pink-based silver alloy can be obtained that can prevent the formation of a local battery in daily life.
【０００９】したがって、本発明はこのような知見に基
づいてなされたものであり、ピンク系の色彩を呈し、生
活状況に置いて局部電池化を防止することができる銀合
金を提供することを目的とする。Accordingly, the present invention has been made based on such findings, and it is an object of the present invention to provide a silver alloy which exhibits a pink color and which can be prevented from being locally batteryed in a living situation. And
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、請求項１に係る銀合金は、主成分としての銀（Ａ
ｇ）が４０ｗｔ％〜８５ｗｔ％、銅（Ｃｕ）が１２ｗｔ
％〜４８ｗｔ％、パラジウム（Ｐｄ）が３ｗｔ％〜２０
ｗｔ％から成ることを特徴とする。In order to achieve the above object, a silver alloy according to claim 1 comprises a silver (A) as a main component.
g) is 40 wt% to 85 wt%, and copper (Cu) is 12 wt%
% To 48 wt%, palladium (Pd) 3 wt% to 20
% by weight.
【００１１】また、請求項２に係る銀合金では、主成分
としての銀（Ａｇ）を４０ｗｔ％〜８５ｗｔ％、銅（Ｃ
ｕ）を１２ｗｔ％〜４８ｗｔ％、パラジウム（Ｐｄ）を
３ｗｔ％〜２０ｗｔ％を含み、さらに１０ｗｔ％までの
プラチナ（Ｐｔ）または２０ｗｔ％までの金（Ａｕ）の
うちの一種以上を添加したことを特徴とする。Further, in the silver alloy according to the second aspect, silver (Ag) as a main component is 40 wt% to 85 wt% and copper (C
u) containing 12 wt% to 48 wt%, palladium (Pd) containing 3 wt% to 20 wt%, and further adding at least one of platinum (Pt) up to 10 wt% or gold (Au) up to 20 wt%. Features.
【００１２】上記成分のうち、銀は主成分であり、銅は
ピンク系の色彩を付与するための成分であり、パラジウ
ム、プラチナ、金は生活状況に置いて局部電池化を防止
するための成分である。さらにプラチナは耐硫化特性を
向上させ、金はピンク色を強くする効果がある。Among the above components, silver is a main component, copper is a component for imparting a pink color, and palladium, platinum, and gold are components for preventing a local battery from being put in a living situation. It is. Platinum also has the effect of improving the resistance to sulfurization, and gold has the effect of increasing the pink color.
【００１３】[0013]
【発明の実施の形態】以下、請求項１および請求項２に
係る発明の実施形態を詳細に説明する。請求項１に係る
発明では、主成分としての銀（Ａｇ）が４０ｗｔ％〜８
５ｗｔ％、銅（Ｃｕ）が１２ｗｔ％〜４８ｗｔ％、パラ
ジウム（Ｐｄ）が３ｗｔ％〜２０ｗｔ％から成る組成範
囲となるように設定する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention according to claims 1 and 2 will be described in detail. In the invention according to claim 1, silver (Ag) as a main component is 40 wt% to 8 wt%.
The composition range is set to be 5 wt%, 12 wt% to 48 wt% of copper (Cu), and 3 wt% to 20 wt% of palladium (Pd).
【００１４】上記組成範囲とするために、銀は主成分と
して４０ｗｔ％〜８５ｗｔ％の範囲で添加される。銅は
１２ｗｔ％〜４８ｗｔ％の範囲で添加される。この銅が
１２ｗｔ％以下の場合は銀の白色が強くなり、ピンク系
の色彩が出ない。また、４８ｗｔ％以上であるとパラジ
ウムの最低添加量が３ｗｔ％であるため銅が主成分とな
ってしまう。In order to obtain the above composition range, silver is added as a main component in a range of 40 wt% to 85 wt%. Copper is added in a range of 12 wt% to 48 wt%. When the content of copper is 12% by weight or less, the white color of silver becomes strong, and a pink color is not produced. On the other hand, when the content is 48 wt% or more, copper becomes a main component because the minimum addition amount of palladium is 3 wt%.
【００１５】また、パラジウムは３ｗｔ％〜２０ｗｔ％
の範囲で添加される。このパラジウムが３ｗｔ％以下の
場合は、生活状況に置いて局部電池化を防止できず、耐
蝕性が得られない。また、２０ｗｔ％以上であると、ピ
ンク系の色彩が出ない。[0015] Palladium is 3 wt% to 20 wt%.
Is added within the range. When the palladium content is 3 wt% or less, it is not possible to prevent the battery from being used locally in a living situation and the corrosion resistance cannot be obtained. On the other hand, if the content is 20% by weight or more, a pink color is not produced.
【００１６】請求項２に係る発明では、主成分としての
銀（Ａｇ）を４０ｗｔ％〜８５ｗｔ％、銅（Ｃｕ）を１
２ｗｔ％〜４８ｗｔ％、パラジウム（Ｐｄ）を３ｗｔ％
〜２０ｗｔ％から成るを含み、さらに１０ｗｔ％までの
プラチナ（Ｐｔ）または２０ｗｔ％までの金（Ａｕ）の
うちの一種以上が添加される組成範囲となるように設定
する。In the invention according to claim 2, silver (Ag) as a main component is 40 wt% to 85 wt%, and copper (Cu) is 1 wt%.
2 wt% to 48 wt%, 3 wt% palladium (Pd)
The composition range is set so that at least one of platinum (Pt) up to 10 wt% or gold (Au) up to 20 wt% is added.
【００１７】上述の基本組成に１０ｗｔ％までのプラチ
ナ、または２０ｗｔ％までの金のうち一種以上が添加さ
れる。One or more of platinum up to 10 wt% or gold up to 20 wt% is added to the above basic composition.
【００１８】Ｐｔは局部電池化を抑制するばかりではな
く、Ｐｔを添加すると耐硫化性が向上する。ただし、プ
ラチナを１０ｗｔ％以上添加するとピンクの発色がなく
なってしまう。Pt not only suppresses the formation of a local battery, but the addition of Pt improves the sulfuration resistance. However, if platinum is added in an amount of 10% by weight or more, pink coloring is lost.
【００１９】金は局部電池化を抑制するばかりではな
く、合金にピンク色を付与するために添加する。ただ
し、金を２０ｗｔ％以上添加すると、黄色等の色が強く
なり、ピンク色と言えなくなる。Gold is added not only to suppress local battery formation but also to impart a pink color to the alloy. However, when gold is added in an amount of 20% by weight or more, the color such as yellow becomes strong and cannot be said to be pink.
【００２０】残部は銀であるが、必ず銀が主成分となる
ようにする。The balance is silver, but silver is always the main component.
【００２１】本発明に係る銀合金は、例えば従来から周
知のロストワックス法などの鋳造工程を経て、指輪、ペ
ンダント、ネックレス、ピアスなどの装飾部材に加工さ
れる。The silver alloy according to the present invention is processed into a decorative member such as a ring, a pendant, a necklace, and a pierce through a casting process such as a conventionally known lost wax method.
【００２２】[0022]
【実施例】銀と銅と金の添加量を種々変更して、色と硬
度と耐蝕性を調べた。その結果を表１に示す。EXAMPLE The color, hardness and corrosion resistance were examined with various amounts of silver, copper and gold added. Table 1 shows the results.
【００２３】色は、原料を調合して約１０００℃の温度
で溶解した後に鋳造して地金を作成し、この地金をバフ
研磨した後にスターリングシルバーと比較してピンク色
の発色があるか否かを肉眼で評価したものであり、スタ
ーリングシルバーに比較してピンクの発色があったもの
には○印を、またピンク色の発色がなかったものには×
印を付した。The color is determined by mixing the raw materials, melting at a temperature of about 1000 ° C., casting to form a base metal, buffing the base metal, and then comparing the color of the base metal to sterling silver. Whether or not there was pink color development compared to sterling silver was marked with a circle, and if there was no pink color development, it was ×.
Marked.
【００２４】硬度の評価はマイクロビッカース硬度計で
測定した。また、耐蝕性の評価は、原料を調合して１０
００℃の温度で溶解した後に甲丸リングに鋳造し、この
リングをバフ研磨した後に複数の試験者が指にはめて１
ケ月間の日常生活を行い、変色の有無を肉眼で調べて評
価したものであり、１ケ月間の日常生活で変色や黒色化
が全くないものには二重白丸を、ほとんどないものに
○、変色や黒色化があったものには×印を付した。な
お、総合欄が×印のものは、請求項１または請求項２の
範囲外のものである。The evaluation of the hardness was measured with a micro Vickers hardness tester. In addition, the corrosion resistance was evaluated by mixing the raw materials.
After being melted at a temperature of 00 ° C., it was cast into an instep ring.
It was evaluated by checking the presence or absence of discoloration with the naked eye for a period of one month's daily life.Double white circles indicate that there is no discoloration or blackening in one month's daily life. Those with discoloration or blackening were marked with x. Incidentally, those having a cross in the comprehensive column are out of the scope of claim 1 or claim 2.
【００２５】[0025]
【表１】 [Table 1]
【００２６】表１から明らかなように、銀の範囲は資料
Ｎｏ．１〜１１をみると４０ｗｔ％〜８５ｗｔ％でよい
ことがわかる。すなわち、Ｎｏ．１、２をみると３９．
５ｗｔ％が発色不良であり、４０ｗｔ％でないと発色が
でない。同様にＮｏ．１０、１１をみると８５ｗｔ％で
は発色は良好であるが、８６ｗｔ％では発色不良であ
る。As is clear from Table 1, the range of silver is shown in Material No. From 1 to 11, it can be seen that 40 wt% to 85 wt% is sufficient. That is, No. Looking at 1 and 2, 39.
5 wt% is poor coloring, and if not 40 wt%, no coloring occurs. Similarly, No. Looking at 10 and 11, the coloring is good at 85 wt%, but the coloring is poor at 86 wt%.
【００２７】銅の範囲も資料Ｎｏ．１〜１１をみると１
２ｗｔ％〜４８ｗｔ％であることがわかる。すなわち、
Ｎｏ．１０、１１をみると１２ｗｔ％では発色は良好で
あるが、１１ｗｔ％では発色不良である。同様にＮｏ．
４をみると４８ｗｔ％まで発色は良好である。これ以上
の添加は銅が主成分となるために、限度であることがわ
かる。The range of copper is also described in Document No. Looking at 1-11, 1
It turns out that it is 2 wt%-48 wt%. That is,
No. Looking at 10 and 11, the color development is good at 12 wt%, but the color development is poor at 11 wt%. Similarly, No.
Looking at 4, color development is good up to 48 wt%. It can be seen that the addition of more than this is a limit because copper is the main component.
【００２８】パラジウムの範囲も資料Ｎｏ．１〜１１の
ように３ｗｔ％〜２０ｗｔ％であることがわかる。すな
わち、Ｎｏ．４、５をみると最低添加量は３ｗｔ％必要
であることがわかる。また、Ｎｏ．１２をみると最大添
加量は２０ｗｔ％になる。これ以上の添加はピンクに発
色しない。The range of palladium is also described in Material No. It is understood that the content is 3 wt% to 20 wt% as shown in 1 to 11. That is, No. 4 and 5, it can be seen that the minimum addition amount is 3 wt%. In addition, No. Looking at 12, the maximum addition amount is 20 wt%. Any further addition does not develop a pink color.
【００２９】プラチナの範囲は資料Ｎｏ．１２〜１６を
見ると０ｗｔ％〜１０ｗｔ％であることがわかる。すな
わち、Ｎｏｌ〜１１のようにＰｔ無添加でも可能だが、
Ｐｔを添加すると耐硫化性が向上することがわかった。
ただし、１０ｗｔ％を越えるとピンク色を失う。The range of platinum is shown in Document No. Looking at 12 to 16, it can be seen that it is 0 wt% to 10 wt%. In other words, although Pt is not added as in Nol-11,
It was found that the addition of Pt improved the sulfuration resistance.
However, if it exceeds 10 wt%, the pink color is lost.
【００３０】金の範囲も資料Ｎｏ．１〜１１のように０
ｗｔ％〜２０ｗｔ％であることがわかる。すなわち、Ｎ
ｏ．ｌ〜１１のようにＡｕ無添加でも可能だが、Ａｕを
添加するとピンク色が強くでることがわかった。ただ
し、２０ｗｔ％以上添加すると発色に黄色味が強くなり
ピンク色とは言えなくなる。The range of gold is also described in Material No. 0 like 1-11
It turns out that it is wt%-20 wt%. That is, N
o. As shown in 1 to 11, it is possible to add no Au, but it was found that the addition of Au gave a strong pink color. However, if it is added in an amount of 20% by weight or more, the color develops a yellow color and cannot be said to be pink.
【００３１】[0031]
【発明の効果】以上のように、請求項１に係る銀合金に
よれば、主成分としての銀（Ａｇ）が４０ｗｔ％〜８５
ｗｔ％、銅（Ｃｕ）が１２ｗｔ％〜４８ｗｔ％、パラジ
ウム（Ｐｄ）が３ｗｔ％〜２０ｗｔ％から成る組成範囲
に設定したことから、生活状況に置いて局部電池化を防
止した耐蝕性の良好なピンク系の銀合金が得られる。As described above, according to the silver alloy of the first aspect, silver (Ag) as a main component is 40 wt% to 85 wt%.
Since the composition ranges of 12 wt% to 48 wt% of copper (Cu) and 3 wt% to 20 wt% of palladium (Pd) are set in the composition range, it is possible to prevent a local battery from being used in a living situation and to have good corrosion resistance. A pink silver alloy is obtained.
【００３２】また、請求項２に係る銀合金によれば、主
成分としての銀（Ａｇ）を４０ｗｔ％〜８５ｗｔ％、銅
（Ｃｕ）を１２ｗｔ％〜４８ｗｔ％、パラジウム（Ｐ
ｄ）を３ｗｔ％〜２０ｗｔ％を含み、さらに１０ｗｔ％
までのプラチナ（Ｐｔ）または２０ｗｔ％までの金（Ａ
ｕ）のうちの一種以上を添加した組成範囲に設定したこ
とから、生活状況に置いて局部電池化を防止した耐蝕性
の良好なピンク系の銀合金が得られる。According to the silver alloy of the present invention, silver (Ag) as a main component is 40 wt% to 85 wt%, copper (Cu) is 12 wt% to 48 wt%, and palladium (P) is
d) containing 3 wt% to 20 wt%, and further 10 wt%
Up to platinum (Pt) or up to 20 wt% gold (A
By setting the composition range to which at least one of u) is added, it is possible to obtain a pink silver alloy having good corrosion resistance and preventing local battery formation in daily life.
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１２年６月２７日（２０００．６．２
７）[Submission Date] June 27, 2000 (2006.2
7)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【書類名】 明細書[Document Name] Statement
【発明の名称】 装飾用銀合金[Title of the Invention] Decorative silver alloy
【特許請求の範囲】[Claims]
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は銀合金に関し、特に
装飾部材、時計部品、メガネ部品などに好適に用いるこ
とができる装飾用銀合金に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver alloy, and more particularly to a decorative silver alloy which can be suitably used for decorative members, watch parts, eyeglass parts and the like.
【０００２】[0002]
【従来の技術】銀や銀合金は古くから装飾部材として広
く用いられている。銀合金の代表的なものは、銀９２．
５ｗｔ％−銅合金（スターリングシルバー）であり、ほ
かに装飾材料としては銀８０ｗｔ％以上の合金が使用さ
れ、銀９０ｗｔ％−銅合金（コインシルバー）や銀９
５．８ｗｔ％−銅合金（ブリタニアシルバー）もある。2. Description of the Related Art Silver and silver alloys have been widely used as decorative members since ancient times. A typical silver alloy is silver 92.
5 wt% -copper alloy (sterling silver), and an alloy of 80 wt% or more silver is used as a decoration material, and 90 wt% of silver-copper alloy (coin silver) or silver 9
There is also a 5.8 wt% -copper alloy (Britania Silver).
【０００３】銀は平常の状態では酸素とは反応しない
が、硫化ガスや亜硫酸ガスとは容易に反応し、その表面
に硫化銀の黒色被膜を生成して装飾効果を減じてしま
う。[0003] In a normal state, silver does not react with oxygen, but easily reacts with a sulfide gas or a sulfur dioxide gas to form a black coating of silver sulfide on its surface, thereby reducing the decorative effect.
【０００４】このような硫化を防止するために、その表
面に強く結合する有機化合物を塗布したり、金もしくは
ロジウムメッキを施したり、合金化することが行われて
いる。In order to prevent such sulfuration, an organic compound that strongly binds to the surface, gold or rhodium plating, or alloying has been used.
【０００５】銀に銅を合金化すると、銅１４ｗｔ％くら
いまでは、白色で機械的性質を向上させることができ、
且つ融点も下がることから、鋳造性も向上するが、耐硫
化性を改善することはできず、耐蝕性は悪くなる。これ
は銀への銅の固溶限を越えて２相共晶になり、局部電池
化して変色するためである。When copper is alloyed with silver, up to about 14% by weight of copper, it is possible to improve mechanical properties in white.
In addition, since the melting point is lowered, the castability is improved, but the sulfidation resistance cannot be improved, and the corrosion resistance deteriorates. This is because the two-phase eutectic is formed beyond the solid solubility limit of copper in silver, and it becomes a local battery and discolors.
【０００６】耐硫化性を改善する銀合金としては、銀−
パラジウム、銀−白金、銀−金が知られている。この銀
合金において、銀の硫化を完全に防止するためには、パ
ラジウム４０ｗｔ％、白金６０ｗｔ％、金７０ｗｔ％以
上添加する必要があり、コストが高くなったり、融点が
高くなって鋳造性が悪くなる。[0006] Silver alloys for improving the sulfuration resistance include silver-
Palladium, silver-platinum and silver-gold are known. In this silver alloy, it is necessary to add at least 40% by weight of palladium, 60% by weight of platinum, and 70% by weight of gold in order to completely prevent sulfuration of silver, which increases the cost and increases the melting point, resulting in poor castability. Become.
【０００７】一方、近時は、装飾用の貴金属材料でも多
様な色彩のものが求められている。金では黄色系のもの
やピンク系のものが市場で受け入れられているが、装飾
用の銀合金でも同様に多様な色彩のものが求められてい
る。On the other hand, recently, there are demands for various noble metal materials for decoration in various colors. Gold-based yellow and pink-based ones are accepted in the market, but silver alloys for decoration are also required in various colors.
【０００８】本発明者はこのような状況に鑑みて鋭意研
究を重ねた結果、銀に銅を添加し、２相共晶組成であり
ながらさらに貴金属（パラジウム、白金）を添加すれ
ば、生活状況に置いて局部電池化を防止することができ
るピンク系の装飾用銀合金が得られることを知見した。The inventor of the present invention has conducted intensive studies in view of such circumstances. As a result, if copper is added to silver and a noble metal (palladium, platinum) is further added while having a two-phase eutectic composition, the living conditions can be improved. It was found that a pink-based decorative silver alloy which can prevent the formation of a local battery by being placed on the surface was obtained.
【０００９】したがって、本発明はこのような知見に基
づいてなされたものであり、ピンク系の色彩を呈し、生
活状況に置いて局部電池化を防止することができる装飾
用銀合金を提供することを目的とする。Accordingly, the present invention has been made based on such findings, and it is an object of the present invention to provide a decorative silver alloy which exhibits a pink color and can be prevented from becoming a local battery in daily life. With the goal.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、請求項１に係る装飾用銀合金は、主成分としての銀
（Ａｇ）を４０ｗｔ％〜８５ｗｔ％、銅（Ｃｕ）を１２
ｗｔ％〜４８ｗｔ％、パラジウム（Ｐｄ）を３ｗｔ％〜
２０ｗｔ％を含み、さらに１０ｗｔ％までのプラチナ
（Ｐｔ）を添加したことを特徴とする。In order to achieve the above object, a decorative silver alloy according to claim 1 comprises 40 wt% to 85 wt% of silver (Ag) as a main component and 12 wt% of copper (Cu).
wt%-48 wt%, palladium (Pd) 3 wt%-
It is characterized by containing 20 wt% and further adding up to 10 wt% of platinum (Pt).
【００１１】上記成分のうち、銀は主成分であり、銅は
ピンク系の色彩を付与するための成分であり、パラジウ
ム、プラチナは生活状況に置いて局部電池化を防止する
ための成分である。さらにプラチナは耐硫化特性を向上
させる効果がある。Among the above-mentioned components, silver is a main component, copper is a component for giving a pink color, and palladium and platinum are components for preventing local batteries from being used in daily life. . Further, platinum has the effect of improving the sulfuration resistance.
【００１２】[0012]
【発明の実施の形態】以下、請求項１に係る発明の実施
形態を詳細に説明する。請求項１に係る発明では、主成
分としての銀（Ａｇ）を４０ｗｔ％〜８５ｗｔ％、銅
（Ｃｕ）を１２ｗｔ％〜４８ｗｔ％、パラジウム（Ｐ
ｄ）を３ｗｔ％〜２０ｗｔ％を含み、さらに１０ｗｔ％
までのプラチナ（Ｐｔ）が添加される組成範囲となるよ
うに設定する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention according to claim 1 will be described in detail. In the invention according to claim 1, silver (Ag) as a main component is 40 wt% to 85 wt%, copper (Cu) is 12 wt% to 48 wt%, and palladium (P
d) containing 3 wt% to 20 wt%, and further 10 wt%
Is set so as to be in a composition range in which platinum (Pt) is added.
【００１３】上記組成範囲とするために、銀は主成分と
して４０ｗｔ％〜８５ｗｔ％の範囲で添加される。銅は
１２ｗｔ％〜４８ｗｔ％の範囲で添加される。この銅が
１２ｗｔ％以下の場合は銀の白色が強くなり、ピンク系
の色彩が出ない。また、４８ｗｔ％以上であるとパラジ
ウムの最低添加量が３ｗｔ％であるため銅が主成分とな
ってしまう。In order to make the above composition range, silver is added as a main component in a range of 40 wt% to 85 wt%. Copper is added in a range of 12 wt% to 48 wt%. When the content of copper is 12% by weight or less, the white color of silver becomes strong, and a pink color is not produced. On the other hand, when the content is 48 wt% or more, copper becomes a main component because the minimum addition amount of palladium is 3 wt%.
【００１４】また、パラジウムは３ｗｔ％〜２０ｗｔ％
の範囲で添加される。このパラジウムが３ｗｔ％以下の
場合は、生活状況に置いて局部電池化を防止できず、耐
蝕性が得られない。また、２０ｗｔ％以上であると、ピ
ンク系の色彩が出ない。Further, palladium is 3 wt% to 20 wt%.
Is added within the range. When the palladium content is 3 wt% or less, it is not possible to prevent the battery from being used locally in a living situation and the corrosion resistance cannot be obtained. On the other hand, if the content is 20% by weight or more, a pink color is not produced.
【００１５】上述の基本組成に１０ｗｔ％までのプラチ
ナが添加される。プラチナは局部電池化を抑制するばか
りではなく、プラチナを添加すると耐硫化性が向上す
る。ただし、プラチナを１０ｗｔ％以上添加するとピン
クの発色がなくなってしまう。Up to 10% by weight of platinum is added to the above basic composition. Platinum not only suppresses the formation of local batteries, but the addition of platinum improves the sulfuration resistance. However, if platinum is added in an amount of 10% by weight or more, pink coloring is lost.
【００１６】残部は銀であるが、必ず銀が主成分となる
ようにする。The balance is silver, but silver is always the main component.
【００１７】本発明に係る装飾用銀合金は、例えば従来
から周知のロストワックス法などの鋳造工程を経て、指
輪、ペンダント、ネックレス、ピアスなどの装飾部材に
加工される。The decorative silver alloy according to the present invention is processed into a decorative member such as a ring, a pendant, a necklace, and a pierce through a casting process such as a conventionally known lost wax method.
【００１８】[0018]
【実施例】銀と銅とパラジウムとプラチナの添加量を種
々変更して、色と硬度と耐蝕性を調べた。その結果を表
１に示す。EXAMPLES Color, hardness and corrosion resistance were examined with various amounts of silver, copper, palladium and platinum added. Table 1 shows the results.
【００１９】色は、原料を調合して約１０００℃の温度
で溶解した後に鋳造して地金を作成し、この地金をバフ
研磨した後にスターリングシルバーと比較してピンク色
の発色があるか否かを肉眼で評価したものであり、スタ
ーリングシルバーに比較してピンクの発色があったもの
に○印を、またピンク色の発色がなかったものには×印
を付した。The color is determined by mixing the raw materials, melting at a temperature of about 1000 ° C., casting to form a base metal, buffing the base metal, and then comparing the color of the base metal to sterling silver. The presence or absence of the color was evaluated by the naked eye, and a circle with a pink color as compared to sterling silver and a cross with no pink color were given.
【００２０】硬度の評価はマイクロビッカース硬度計で
測定した。また、耐蝕性の評価は、原料を調合して１０
００℃の温度で溶解した後に甲丸リングに鋳造し、この
リングをバフ研磨した後に複数の試験者が指にはめて１
ケ月間の日常生活を行い、変色の有無を肉眼で調べで評
価したものであり、１ケ月間の日常生活で変色や黒色化
が全くないものには二重白丸を、ほとんどないものに
○、変色や黒色化があったものには×印を付した。The evaluation of the hardness was measured by a micro Vickers hardness tester. In addition, the corrosion resistance was evaluated by mixing the raw materials.
After being melted at a temperature of 00 ° C., it was cast into an instep ring.
It was evaluated by the naked eye for the presence or absence of discoloration in the daily life for one month.The double white circle was used for those with no discoloration or blackening in the daily life for one month. Those with discoloration or blackening were marked with x.
【００２１】[0021]
【表１】 [Table 1]
【００２２】表１から明らかなように、銀の範囲は資料
Ｎｏ．１〜１１をみると４０ｗｔ％〜８５ｗｔ％でよい
ことがわかる。すなわち、Ｎｏ．１、２をみると３９．
５ｗｔ％が発色不良であり、４０ｗｔ％でないと発色が
でない。同様にＮｏ．１０、１１をみると８５ｗｔ％で
は発色は良好であるが、８６ｗｔ％では発色不良であ
る。As is clear from Table 1, the range of silver is shown in Material No. From 1 to 11, it can be seen that 40 wt% to 85 wt% is sufficient. That is, No. Looking at 1 and 2, 39.
5 wt% is poor coloring, and if not 40 wt%, no coloring occurs. Similarly, No. Looking at 10 and 11, the coloring is good at 85 wt%, but the coloring is poor at 86 wt%.
【００２３】銅の範囲も資料Ｎｏ．１〜１１をみると１
２ｗｔ％〜４８ｗｔ％であることがわかる。すなわち、
Ｎｏ．１０、１１をみると１２ｗｔ％では発色は良好で
あるが、１１ｗｔ％では発色不良である。同様にＮｏ．
４をみると４８ｗｔ％まで発色は良好である。これ以上
の添加は銅が主成分となるために、限度であることがわ
かる。The range of copper is also described in Document No. Looking at 1-11, 1
It turns out that it is 2 wt%-48 wt%. That is,
No. Looking at 10 and 11, the color development is good at 12 wt%, but the color development is poor at 11 wt%. Similarly, No.
Looking at 4, color development is good up to 48 wt%. It can be seen that the addition of more than this is a limit because copper is the main component.
【００２４】パラジウムの範囲も資料Ｎｏ．１〜１１の
ように３ｗｔ％〜２０ｗｔ％であることがわかる。すな
わち、Ｎｏ．４、５をみると最低添加量は３ｗｔ％必要
であることがわかる。また、Ｎｏ．１２をみると最大添
加量は２０ｗｔ％になる。これ以上の添加はピンクに発
色しない。The range of palladium is also described in Material No. It is understood that the content is 3 wt% to 20 wt% as shown in 1 to 11. That is, No. 4 and 5, it can be seen that the minimum addition amount is 3 wt%. In addition, No. Looking at 12, the maximum addition amount is 20 wt%. Any further addition does not develop a pink color.
【００２５】プラチナの範囲は資料Ｎｏ．１２〜１６を
見ると１０ｗｔ％までであることがわかる。すなわち、
プラチナを添加すると耐硫化性が向上することがわかっ
た。ただし、１０ｗｔ％を越えるとピンク色を失う。The range of platinum is shown in Material No. Looking at 12 to 16, it can be seen that it is up to 10 wt%. That is,
It was found that the addition of platinum improves the sulfuration resistance. However, if it exceeds 10 wt%, the pink color is lost.
【００２６】[0026]
【発明の効果】以上のように、請求項１に係る装飾用銀
合金によれば、主成分としての銀（Ａｇ）を４０ｗｔ％
〜８５ｗｔ％、銅（Ｃｕ）を１２ｗｔ％〜４８ｗｔ％、
パラジウム（Ｐｄ）を３ｗｔ％〜２０ｗｔ％を含み、さ
らに１０ｗｔ％までのプラチナ（Ｐｔ）を添加した組成
範囲に設定したことから、生活状況に置いて局部電池化
を防止した耐蝕性の良好なピンク系の装飾用銀合金が得
られる。As described above, according to the decorative silver alloy of the first aspect, the silver (Ag) as the main component is 40 wt%.
~ 85wt%, copper (Cu) 12wt% ~ 48wt%,
Palladium (Pd) contains 3 wt% to 20 wt%, and is set to a composition range in which platinum (Pt) is further added up to 10 wt%. Decorative silver alloy is obtained.
Claims (2)
〜８５ｗｔ％、銅（Ｃｕ）が１２ｗｔ％〜４８ｗｔ％、
パラジウム（Ｐｄ）が３ｗｔ％〜２０ｗｔ％から成る銀
合金。1. Silver (Ag) as a main component is 40 wt%.
~ 85wt%, copper (Cu) is 12wt% ~ 48wt%,
A silver alloy containing 3 wt% to 20 wt% of palladium (Pd).
〜８５ｗｔ％、銅（Ｃｕ）を１２ｗｔ％〜４８ｗｔ％、
パラジウム（Ｐｄ）を３ｗｔ％〜２０ｗｔ％を含み、さ
らに１０ｗｔ％までのプラチナ（Ｐｔ）または２０ｗｔ
％までの金（Ａｕ）のうちの一種以上を添加した銀合
金。2. Silver (Ag) as a main component is 40 wt%.
~ 85wt%, copper (Cu) 12wt% ~ 48wt%,
Palladium (Pd) containing 3 wt% to 20 wt% and up to 10 wt% platinum (Pt) or 20 wt%
% Of silver (Au).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21593099A JP3228730B2 (en) | 1999-07-29 | 1999-07-29 | Decorative silver alloy |
| FR0003707A FR2791363B1 (en) | 1999-03-25 | 2000-03-23 | SILVER ALLOY AND DECORATIVE OBJECT CONTAINING IT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21593099A JP3228730B2 (en) | 1999-07-29 | 1999-07-29 | Decorative silver alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001040438A true JP2001040438A (en) | 2001-02-13 |
| JP3228730B2 JP3228730B2 (en) | 2001-11-12 |
Family
ID=16680625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21593099A Expired - Lifetime JP3228730B2 (en) | 1999-03-25 | 1999-07-29 | Decorative silver alloy |
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| Country | Link |
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| JP (1) | JP3228730B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020071678A (en) * | 2001-03-07 | 2002-09-13 | 임재선 | Alloy and Manufacturing Process of Gold with Pink Color |
| US7118707B2 (en) | 2004-03-31 | 2006-10-10 | American Bullion Investment Company, Inc. | Silver-platinum alloy and methods of manufacturing same |
| US9005522B2 (en) | 2012-08-30 | 2015-04-14 | Jostens, Inc. | Silver alloy |
| US9428821B2 (en) | 2009-05-12 | 2016-08-30 | Jostens, Inc. | Gold alloys |
| AT520597A2 (en) * | 2017-10-30 | 2019-05-15 | Hauser Thomas | Material comprising a noble metal phase |
-
1999
- 1999-07-29 JP JP21593099A patent/JP3228730B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020071678A (en) * | 2001-03-07 | 2002-09-13 | 임재선 | Alloy and Manufacturing Process of Gold with Pink Color |
| US7118707B2 (en) | 2004-03-31 | 2006-10-10 | American Bullion Investment Company, Inc. | Silver-platinum alloy and methods of manufacturing same |
| US9428821B2 (en) | 2009-05-12 | 2016-08-30 | Jostens, Inc. | Gold alloys |
| US9005522B2 (en) | 2012-08-30 | 2015-04-14 | Jostens, Inc. | Silver alloy |
| AT520597A2 (en) * | 2017-10-30 | 2019-05-15 | Hauser Thomas | Material comprising a noble metal phase |
| AT520597B1 (en) * | 2017-10-30 | 2020-09-15 | Hauser Thomas | Material comprising a precious metal phase |
| AT520597A3 (en) * | 2017-10-30 | 2020-09-15 | Hauser Thomas | Material comprising a precious metal phase |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3228730B2 (en) | 2001-11-12 |
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