JPH0135911B2 - - Google Patents
Info
- Publication number
- JPH0135911B2 JPH0135911B2 JP56030244A JP3024481A JPH0135911B2 JP H0135911 B2 JPH0135911 B2 JP H0135911B2 JP 56030244 A JP56030244 A JP 56030244A JP 3024481 A JP3024481 A JP 3024481A JP H0135911 B2 JPH0135911 B2 JP H0135911B2
- Authority
- JP
- Japan
- Prior art keywords
- platinum
- hardness
- alloy
- ornaments
- present
- 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.)
- Expired
Links
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 13
- 230000032683 aging Effects 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 4
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000000243 solution Substances 0.000 description 5
- 239000010437 gem Substances 0.000 description 3
- 210000004243 sweat Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000003483 aging Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture 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
- 238000005498 polishing Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Landscapes
- Adornments (AREA)
- Contacts (AREA)
Description
本発明は指輪、ネツクレス、ブローチ、ネクタ
イピン、カフスボタン、時計枠、時計バンド、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製造方法に関するもの
である。
従来、上述の如き装飾品材料としては白金−パ
ラジウム（５〜15w／ｏ）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つた。
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品
用白金合金の製造方法を提供せんとするものであ
る。
本発明による装飾品用白金合金の製造方法は、
インジウム２〜10重量％及び残部白金よりなる合
金を溶体化処理後時効処理を施し、当該合金の硬
度を高くすることを特徴とするものである。
本発明による装飾品用白金合金の製造方法に於
いて、インジウムを添加した理由は、固溶体領域
まで加熱し急冷する溶体化処理を行つた後、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2w／ｏ未満では硬さの
改善が殆んどなく、10w／ｏを超えるとPtとInの
金属間化合物の量が多くなり、加工性が悪くなる
からである。
以下本発明による装飾品用白金合金の製造方法
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。
第１表に示す成分組成の実施例No.１〜No.４の装
飾品用白金合金と従来例No.５、No.６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、耐
汗性について測定したところ第２表のような結果
を得た。
The present invention relates to a method for producing a platinum alloy used as a material for rings, necklaces, brooches, tie pins, cufflinks, watch frames, watch bands, lighters, writing utensils, eyeglass frames, earrings, and the like. Conventionally, platinum-palladium (5 to 15 w/o) alloys have been widely used as materials for decorative items such as those mentioned above. This alloy has excellent workability and castability, but
Due to low mechanical strength, especially hardness, scratches and scratches occur during polishing.
It is easy to get scratched and hard to get shiny, and it is also easy to get scratched when used as a finished product, and in the case of rings with jewels, the part that holds the jewels loosens and the jewels can fall off. Ta. The present invention was made in order to eliminate the above-mentioned drawbacks, and it is an object of the present invention to provide a method for producing a platinum alloy for decorative articles that has excellent mechanical strength and workability. The method for producing a platinum alloy for ornaments according to the present invention includes:
It is characterized in that an alloy consisting of 2 to 10% by weight of indium and the balance platinum is subjected to solution treatment and then aging treatment to increase the hardness of the alloy. The reason why indium is added in the method for manufacturing platinum alloys for ornaments according to the present invention is that after performing solution treatment in which the platinum alloy is heated to a solid solution region and rapidly cooled, it exhibits remarkable age hardening properties when aged at an appropriate temperature. It's for the sake of it. This is because if the amount added is less than 2 w/o, there is little improvement in hardness, and if it exceeds 10 w/o, the amount of intermetallic compounds of Pt and In increases, resulting in poor workability. EXAMPLES Examples and conventional examples will be described below in order to clarify the effects of the method for producing platinum alloys for ornaments according to the present invention. Hardness after solution treatment of platinum alloys for ornaments of Examples No. 1 to No. 4 and platinum alloys for ornaments of Conventional Examples No. 5 and No. 6 with the composition shown in Table 1, after aging When the hardness and sweat resistance were measured, the results shown in Table 2 were obtained.
【表】【table】
【表】【table】
【表】
また、第１表の実施例No.２について1200℃で溶
体化処理後、600℃、700℃の温度で時効処理を施
し、その硬度と時効時間の関係測定したところ、
図に示す如く時効処理によつて顕著な硬度上昇を
示す結果を得た。
上記で明らかなように本発明による装飾品用白
金合金は、単に溶体化処理だけした合金や従来の
装飾品用白金合金に比し時効処理後の硬さが著し
く優れ、耐汗性についても優れていることが判
る。
以上詳記した通り、本発明の製造方法による装
飾品用白金合金は加工性、機械的強さ、耐汗性が
極めて優れているので、従来の装飾品用白金合金
にとつて代わることのできる画期的なものと言え
る。[Table] In addition, for Example No. 2 in Table 1, after solution treatment at 1200℃, aging treatment was performed at temperatures of 600℃ and 700℃, and the relationship between hardness and aging time was measured.
As shown in the figure, the results showed that the aging treatment significantly increased the hardness. As is clear from the above, the platinum alloy for ornaments according to the present invention has significantly superior hardness after aging treatment and superior sweat resistance compared to alloys that have been simply solution-treated or conventional platinum alloys for ornaments. It can be seen that As detailed above, the platinum alloy for ornaments produced by the production method of the present invention has extremely excellent workability, mechanical strength, and sweat resistance, and can therefore replace conventional platinum alloys for ornaments. It can be said to be groundbreaking.
図は、実施例No.２を600℃及び700℃で時効処理
したときの時効時間と硬度の関係を示すグラフで
ある。
The figure is a graph showing the relationship between aging time and hardness when Example No. 2 was aged at 600°C and 700°C.
Claims (1)
る合金を溶体化処理後時効処理を施し、当該合金
の硬度を高くすることを特徴とする装飾品用白金
合金の製造方法。1. A method for producing a platinum alloy for ornaments, which comprises subjecting an alloy consisting of 2 to 10% by weight of indium and the balance to platinum to a solution treatment and then subjecting it to an aging treatment to increase the hardness of the alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3024481A JPS57145949A (en) | 1981-03-03 | 1981-03-03 | Platinum alloy for accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3024481A JPS57145949A (en) | 1981-03-03 | 1981-03-03 | Platinum alloy for accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57145949A JPS57145949A (en) | 1982-09-09 |
| JPH0135911B2 true JPH0135911B2 (en) | 1989-07-27 |
Family
ID=12298288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3024481A Granted JPS57145949A (en) | 1981-03-03 | 1981-03-03 | Platinum alloy for accessory |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57145949A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523912U (en) * | 1991-09-12 | 1993-03-30 | 有限会社加古家 | Double lock type cous button with rigid lock body |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59150041A (en) * | 1983-02-16 | 1984-08-28 | Tanaka Kikinzoku Kogyo Kk | Platinum alloy for decorative items |
| ES2581862T3 (en) * | 2012-04-13 | 2016-09-07 | C. Hafner Gmbh + Co. Kg | Platinum alloy and an ornament object produced from this platinum alloy |
-
1981
- 1981-03-03 JP JP3024481A patent/JPS57145949A/en active Granted
Non-Patent Citations (1)
| Title |
|---|
| CONSTITUTION OF BINARY ALLOYS=1958US * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523912U (en) * | 1991-09-12 | 1993-03-30 | 有限会社加古家 | Double lock type cous button with rigid lock body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57145949A (en) | 1982-09-09 |
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