JPS61133338A - Platinum alloy for ornament - Google Patents
Platinum alloy for ornamentInfo
- Publication number
- JPS61133338A JPS61133338A JP25597384A JP25597384A JPS61133338A JP S61133338 A JPS61133338 A JP S61133338A JP 25597384 A JP25597384 A JP 25597384A JP 25597384 A JP25597384 A JP 25597384A JP S61133338 A JPS61133338 A JP S61133338A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- platinum
- ornaments
- weight
- 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)
- Eyeglasses (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、ネクタイピン
、カフスボタン、時針枠１時計バンド。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to rings, necklaces, brooches, tie pins, cufflinks, and watch bands with one hour hand frame.
ライター、筆記用具、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。This invention relates to the improvement of platinum alloys used as materials for lighters, writing utensils, eyeglass frames, earrings, etc.
（従来技術とその問題点）
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、その他白金−パ
ラジウムー銅合金が使用されている。(Prior Art and its Problems) Conventionally, platinum-palladium (5-15% by weight) alloy is often used as a material for the above-mentioned ornaments, and platinum-palladium-copper alloy is also 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. 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、前記白金−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、綱かい模
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 as well as the platinum-palladium alloy, but it reacts with the mold during casting, so no rope pattern appears. , the image becomes unclear, and since the oxygen concentration cannot be suppressed, cavities occur.
（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
％、クロム１〜１０重量％、銅１〜１５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 consists of 84 to 96% by weight of platinum, 1 to 10% by weight of chromium, and 1 to 15% by weight of copper.
本発明による装飾品用白金合金に於いて、クロムを添加
した理由は、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１〜１
０重量％としたのは１重量％未満では機械的強さ及び鋳
造性の向上が低く、１０重量％を超えると加工性が著し
く低下するからである。The reason why chromium is added to the platinum alloy for ornaments according to the present invention is that it satisfies the conditions of not reacting with the mold during casting, suppressing oxygen concentration during casting, and improving mechanical strength and castability. This is because the amount added is 1 to 1.
The reason for setting it to 0% by weight is that if it is less than 1% by weight, the improvement in mechanical strength and castability will be low, and if it exceeds 10% by weight, the workability will be significantly reduced.
また銅は白金と金属間化合物を作り、硬化して一層機械
的強さを向上させる為であり、その添加量が１重量％未
満では機械的強さの改善が殆んどなく、１５重量％を超
えると加工性が悪くなるからである。In addition, copper forms an intermetallic compound with platinum and hardens to further improve mechanical strength. If the amount added is less than 1% by weight, there is almost no improvement in mechanical strength, and 15% by weight This is because if it exceeds this, workability will deteriorate.
以下本発明による装飾品用白金合金の効果を明瞭ならし
める為に実施例及び従来例について述べる。Examples and conventional examples will be described below in order to clarify the effects of the platinum alloy for ornaments according to the present invention.
（実施例及び従来例）
下表の左欄に示す成分組成の実施例１〜３の装飾品用白
金合金と従来例１．２の装飾品用白金合金の硬さ、＃ａ
型の細かい模様の再現度、及び、巣の発生度合いについ
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) Hardness of the platinum alloys for ornaments of Examples 1 to 3 and platinum alloys for ornaments of Conventional Examples 1.2 having the component compositions shown in the left column of the table below, #a
The reproducibility of the fine pattern of the mold and the degree of occurrence of cavities were measured after annealing, and the results shown in the right column of the table below were obtained.
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現度合も極め
て優れていることが判る。As is clear from the table above, the platinum alloy for decorative items according to the present invention has superior hardness after annealing compared to conventional platinum alloys for decorative items, and the reproduction of fine patterns in the mold when cast is also extremely high. It turns out to be excellent.
（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
９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)
１５重量％より成る装飾品用白金合金。84-96% by weight of platinum, 1-10% by weight of chromium, 1-1% by weight of copper
A platinum alloy for ornaments consisting of 15% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25597384A JPS61133338A (en) | 1984-12-04 | 1984-12-04 | Platinum alloy for ornament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25597384A JPS61133338A (en) | 1984-12-04 | 1984-12-04 | Platinum alloy for ornament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61133338A true JPS61133338A (en) | 1986-06-20 |
Family
ID=17286139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25597384A Pending JPS61133338A (en) | 1984-12-04 | 1984-12-04 | Platinum alloy for ornament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61133338A (en) |
-
1984
- 1984-12-04 JP JP25597384A patent/JPS61133338A/en active Pending
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