JPS61270351A - Ornamental platinum alloy - Google Patents
Ornamental platinum alloyInfo
- Publication number
- JPS61270351A JPS61270351A JP11359085A JP11359085A JPS61270351A JP S61270351 A JPS61270351 A JP S61270351A JP 11359085 A JP11359085 A JP 11359085A JP 11359085 A JP11359085 A JP 11359085A JP S61270351 A JPS61270351 A JP S61270351A
- Authority
- JP
- Japan
- Prior art keywords
- platinum alloy
- ornamental
- platinum
- hardness
- workability
- 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
- 229910001260 Pt alloy Inorganic materials 0.000 title claims abstract description 17
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 6
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 3
- 238000003483 aging Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 238000005275 alloying Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000010437 gem Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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、７ノクレス、ブローチ、ネクタイピン、
カフスボタン、時計枠、時計ハンド、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。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to rings, seven necklaces, brooches, tie pins,
This invention relates to the improvement of platinum alloys used as materials for cufflinks, watch frames, watch hands, lighters, writing utensils, eyeglass frames, earrings, etc.
（従来技術とその問題点）
従来、上述の如き装飾品材料としては白金−パラジウム
（５〜１５重世％）系合金が多用されている。この合金
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
が出にくくまた完成品として使用している場合も傷が付
き易（また宝石付１旨輪の場合、宝石を止めている部分
がゆるんで宝石が脱落すると言う欠点があった。(Prior Art and its Problems) Conventionally, platinum-palladium (5 to 15 weight percent) alloys have been widely used as materials for ornaments such as those mentioned above. This alloy has excellent workability and castability, but because of its low mechanical strength and particularly low hardness, it is easily scratched and stamped during polishing, and is difficult to produce gloss, and is used as a finished product. (Also, in the case of jeweled rings, the part that holds the jewels in place loosened and the jewels could fall off.)
（発明の目的）
本発明は上記の欠点を解消せんが為になされたものであ
り、機械的強さ、加工性に優れた装飾用白金合金を提供
せんとするもである。(Object of the Invention) The present invention has been made to solve the above-mentioned drawbacks, and aims to provide a decorative platinum alloy with excellent mechanical strength and workability.
（発明の構成）
本発明による装飾用白金合金は、白金８４〜９Ｇ重量％
、ガリウム２〜１０重量％、タングステン０．５〜１０
重里％よりなる時効硬化特性を具備したものである。(Structure of the Invention) The decorative platinum alloy according to the present invention has 84 to 9 G of platinum by weight.
, gallium 2-10% by weight, tungsten 0.5-10
It has age hardening properties consisting of % Shigesato.
本発明による装飾用白金合金に於いて、ガリウムを添加
した理由は、Ｐ ｔ −Ｇａの２元状態図からも明らか
なようにＧａはｐｔに対して１３６１℃で最大固溶量６
重世％を示し、その固溶限は温度下降と共に漸次減少し
、固溶体領域まで加熱し急冷する溶体化処理を行った後
、適当な温度で時効させると著しい時効硬化性を現わす
為である。その添加量が２重量％未満では、硬さの改善
が殆んどなく１０重量％を超えるとｐｔとＧａが金属間
化合物を作り、加工性が悪くなるからである。In the decorative platinum alloy according to the present invention, the reason for adding gallium is that, as is clear from the binary phase diagram of Pt-Ga, Ga has a maximum solid solution amount of 6 at 1361°C with respect to pt.
This is because the solid solubility limit gradually decreases as the temperature decreases, and when aged at an appropriate temperature after being subjected to solution treatment in which it is heated to the solid solution region and rapidly cooled, it exhibits remarkable age hardening properties. . If the amount added is less than 2% by weight, there will be little improvement in hardness, and if it exceeds 10% by weight, pt and Ga will form an intermetallic compound, resulting in poor workability.
またタングステンを添加した理由は、タングステンは脱
酸効果があり、鋳造時に酸素濃度を抑制でき、鋳造性を
向上させ、また高温（例えばろう材中）での結晶粒の粗
大化を防止して機械的強さの低下を防止する為であり、
その添加量が０．５重世％未満では硬さの改善が殆んど
なく１０重量％を超えると合金が硬くなりすぎ、加工性
が悪くなるからである。The reason for adding tungsten is that tungsten has a deoxidizing effect, can suppress oxygen concentration during casting, improves castability, and prevents coarsening of crystal grains at high temperatures (for example, in brazing filler metal). This is to prevent a decline in the strength of
This is because if the amount added is less than 0.5% by weight, there is little improvement in hardness, and if it exceeds 10% by weight, the alloy becomes too hard and the workability deteriorates.
（実施例）
以下、本発明による装飾用白金合金の効果を明瞭ならし
める為に実施例および従来例について述べる。(Examples) Examples and conventional examples will be described below in order to clarify the effects of the decorative platinum alloy according to the present invention.
第１表に示す成分組成の実施例隘１〜患５の装飾品用白
金合金と従来例１１ｈＬ’ｌｔ２の装飾品用白金合金の
溶体化処理後の硬度、時効後の硬度、鋳造時の巣の発生
度合及び結晶粒の大きさについて測定したところ第２表
のような結果を得た。The hardness after solution treatment, the hardness after aging, and the cavities during casting of the platinum alloys for ornaments in Examples 1 to 5 and the platinum alloys for ornaments in Conventional Example 11hL'lt2 with the component compositions shown in Table 1. The degree of occurrence and the size of crystal grains were measured, and the results shown in Table 2 were obtained.
第 １ 表
第２表
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時効処理後の硬さが
優れ、結晶粒が小さく、また鋳造した際の巣の発生度合
も低いことが判る。As is clear from Table 1, Table 2, and the above table, the platinum alloy for ornaments according to the present invention has superior hardness after aging treatment, has smaller crystal grains, and is easier to cast than conventional platinum alloys for ornaments. It can be seen that the incidence of nests is also 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、機械的強さが極めて優れまた鋳造時の巣の発生度合
が低いので、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 and mechanical strength, and has a low occurrence of cavities during casting, so it is superior to conventional platinum alloys for ornaments. It can be said to be an epoch-making product that can replace alloys.
Claims (1)
ステン０．５〜１０重量％よりなる装飾品用白金合金。A platinum alloy for ornaments consisting of 84 to 96% by weight of platinum, 2 to 10% by weight of gallium, and 0.5 to 10% by weight of tungsten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11359085A JPS61270351A (en) | 1985-05-27 | 1985-05-27 | Ornamental platinum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11359085A JPS61270351A (en) | 1985-05-27 | 1985-05-27 | Ornamental platinum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61270351A true JPS61270351A (en) | 1986-11-29 |
Family
ID=14616074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11359085A Pending JPS61270351A (en) | 1985-05-27 | 1985-05-27 | Ornamental platinum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61270351A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6562158B1 (en) | 1998-12-01 | 2003-05-13 | Steven Kretchmer | Heat-treatable platinum-gallium-palladium alloy for jewelry |
| WO2020141613A3 (en) * | 2020-03-24 | 2020-09-03 | 株式会社俄 | Pt ALLOY |
-
1985
- 1985-05-27 JP JP11359085A patent/JPS61270351A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6562158B1 (en) | 1998-12-01 | 2003-05-13 | Steven Kretchmer | Heat-treatable platinum-gallium-palladium alloy for jewelry |
| WO2020141613A3 (en) * | 2020-03-24 | 2020-09-03 | 株式会社俄 | Pt ALLOY |
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