JPS61186439A - Platinum alloy for ornament - Google Patents
Platinum alloy for ornamentInfo
- Publication number
- JPS61186439A JPS61186439A JP2688885A JP2688885A JPS61186439A JP S61186439 A JPS61186439 A JP S61186439A JP 2688885 A JP2688885 A JP 2688885A JP 2688885 A JP2688885 A JP 2688885A JP S61186439 A JPS61186439 A JP S61186439A
- Authority
- JP
- Japan
- Prior art keywords
- platinum
- weight
- alloy
- ornament
- mechanical strength
- 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
【発明の詳細な説明】
（産業上の利用分野）
本発明は、指輪、ネックレス、ブローチ、ネクタイビン
、カフスボタン、時計枠、時計バンド、ライター、筆記
具、眼鏡枠、イヤリング等の材料として使用する白金合
金の改良に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention can be used as a material for rings, necklaces, brooches, tie bins, cufflinks, watch frames, watch bands, lighters, writing implements, eyeglass frames, earrings, etc. This paper relates to the improvement of platinum alloys.
（従来技術と問題点）
従来、上述の如き装飾品の材料としては白金−パラジウ
ム（５−１５重量％）合金が多用され、その他白合−パ
ラジウムー銅合金が使用されそいる。(Prior Art and Problems) Conventionally, platinum-palladium (5-15% by weight) alloys have been frequently used as materials for the above-mentioned ornaments, and platinum-palladium-copper alloys are also likely to be used.
然し乍ら前者の白金−パラジウム（５−１５重量％）合
金は加工性、鋳造性に優れているが、機械的強さ特に硬
さが低い為研摩中にすり傷、押傷が付き易く且つ光沢が
出に＜＜、また完成品として使用している場合も傷が付
き易く、また宝石付指輪の場合、宝石を止めている部分
がゆるんで宝石が脱落するという欠点があった。However, although the former platinum-palladium (5-15% by weight) alloy has excellent workability and castability, it has low mechanical strength, especially hardness, and is easily scratched and stamped during polishing, and its luster is poor. Moreover, when used as a finished product, it is easily scratched, and in the case of rings with jewels, the part that holds the jewels loosens, causing the jewels to fall off.
また後者の白金−パラジウム−銅合金は、前記出合−パ
ラジウム合金と同様加工性に優れ、その上機械的強さに
も優れているが、鋳造時に鋳型と反応する為、細かい模
様が現われず、不鮮明になり、しかも酸素濃度を抑制で
きないため鋳巣が生じるという欠点があった。The latter platinum-palladium-copper alloy has excellent workability and mechanical strength like the above-described palladium alloy, but because it reacts with the mold during casting, fine patterns do not appear. The problem was that the image became unclear, and that cavities were formed because the oxygen concentration could not be suppressed.
（発明の目的）
本発明は上記欠点を解消せんが為になされたものであり
、加工性は勿論のこと機械的強さ、鋳造性に優れた装飾
品用白金合金を提供せんとするものである。(Object of the Invention) The present invention was made in order to eliminate the above-mentioned drawbacks, and aims to provide a platinum alloy for ornaments that is excellent in not only workability but also mechanical strength and castability. be.
（発明の構成）
本発明による装飾品用白金合金は、白金８４〜９６重量
％、パラジウム１〜１５重量％、銅０．５〜１０重量％
及びモリブデン、タングステンの少なくとも１種総量で
０．１〜７重量％より成るものである。(Structure of the Invention) The platinum alloy for ornaments according to the present invention includes 84 to 96% by weight of platinum, 1 to 15% by weight of palladium, and 0.5 to 10% by weight of copper.
The total amount of at least one of molybdenum and tungsten is 0.1 to 7% by weight.
本発明による装飾品用白金合金に於いて、モリブデン、
タングステンの少なくとも１種を添加した理由は、装飾
品用材料としての加工性を損なわないこと、鋳造時に鋳
型と反応しないこと及び鋳造時に酸素濃度を抑制できる
ことの条件を満し、機械的強さ及び鋳造性を向上させる
為であり、その添加量を０．１〜７重量％とじだのは０
．１重量％未満では機械的強さ及び鋳造性の向上が低く
、７重量％を超えると加工性が著しく低下するからであ
る。また本発明の装飾品用白金合金に於けるパラジウム
及び銅含有量は、機械的強さ、価格、耐食性等の点から
夫々１〜１５重量％、０．５〜１０重量％が好ましい。In the platinum alloy for ornaments according to the present invention, molybdenum,
The reason for adding at least one type of tungsten is that it satisfies the following conditions: it does not impair workability as a decorative material, it does not react with the mold during casting, it suppresses the oxygen concentration during casting, and it has good mechanical strength and The purpose is to improve castability, and the amount added is 0.1 to 7% by weight.
．． This is because if it is less than 1% by weight, improvements in mechanical strength and castability will be low, and if it exceeds 7% by weight, workability will be significantly reduced. Further, the palladium and copper contents in the platinum alloy for ornaments of the present invention are preferably 1 to 15% by weight and 0.5 to 10% by weight, respectively, from the viewpoint of mechanical strength, cost, corrosion resistance, etc.
（実施例及び従来例）
下表の左欄に示す成分組成の実施例１〜４の装飾品用白
金合金と従来例５〜７の装飾品用白金合金の硬さ、鋳型
の細かい模様の再限度、巣の発生度合い及び結晶粒の大
きさについて、夫々焼なまし後に測定したところ、下表
の右欄に示すような結果を得た。(Examples and Conventional Examples) The hardness of the platinum alloys for ornaments of Examples 1 to 4 and the platinum alloys for ornaments of Conventional Examples 5 to 7 with the component compositions shown in the left column of the table below, and the reproduction of fine patterns on the molds. The limit, the degree of occurrence of cavities, and the size of crystal grains were measured after annealing, and the results shown in the right column of the table below were obtained.
（以下余白）
上記表で明らかなように本発明による装飾品用白金合金
は、従来の装飾品用白金合金に比し焼なまし後の硬さが
優れ、鋳造した際の鋳型の細かい模様の再限度合に優れ
、巣の発生度合も低いことが判る。(Left below) As is clear from the above table, the platinum alloy for ornaments according to the present invention has superior hardness after annealing compared to conventional platinum alloys for ornaments, and the fine patterns of the mold when casting are improved. It can be seen that the refilling rate is excellent and the occurrence of nests is low.
（発明の効果）
以上詳記した通り本発明の装飾品用白金合金は、加工性
、機械的強さ、鋳造性が極めて優れているので、従来の
装飾品用白金合金にとって代わることのできる画期的な
ものと言える。(Effects of the Invention) As detailed above, the platinum alloy for ornaments of the present invention has extremely excellent workability, mechanical strength, and castability, so it can be used as a substitute for conventional platinum alloys for ornaments. It can be said that it is temporary.
Claims (1)
０．５〜１０重量％及びモリブデン、タングステンの少
なくとも１種総量で０．１〜７重量％より成る装飾品用
白金合金。A platinum alloy for ornaments, comprising 84 to 96% by weight of platinum, 1 to 15% by weight of palladium, 0.5 to 10% by weight of copper, and 0.1 to 7% by weight of at least one of molybdenum and tungsten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2688885A JPS61186439A (en) | 1985-02-14 | 1985-02-14 | Platinum alloy for ornament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2688885A JPS61186439A (en) | 1985-02-14 | 1985-02-14 | Platinum alloy for ornament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61186439A true JPS61186439A (en) | 1986-08-20 |
Family
ID=12205794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2688885A Pending JPS61186439A (en) | 1985-02-14 | 1985-02-14 | Platinum alloy for ornament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61186439A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04362149A (en) * | 1991-06-07 | 1992-12-15 | Nippon Kogyo Ginkou:Kk | Platinum alloy |
| WO2009059736A1 (en) | 2007-11-08 | 2009-05-14 | Heimerle + Meule Gmbh | Platinum alloy for jewelry |
-
1985
- 1985-02-14 JP JP2688885A patent/JPS61186439A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04362149A (en) * | 1991-06-07 | 1992-12-15 | Nippon Kogyo Ginkou:Kk | Platinum alloy |
| WO2009059736A1 (en) | 2007-11-08 | 2009-05-14 | Heimerle + Meule Gmbh | Platinum alloy for jewelry |
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