JPH0243331A - Platinum alloy for ornament - Google Patents
Platinum alloy for ornamentInfo
- Publication number
- JPH0243331A JPH0243331A JP19206888A JP19206888A JPH0243331A JP H0243331 A JPH0243331 A JP H0243331A JP 19206888 A JP19206888 A JP 19206888A JP 19206888 A JP19206888 A JP 19206888A JP H0243331 A JPH0243331 A JP H0243331A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- hardness
- platinum alloy
- ornament
- casting
- 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 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910052702 rhenium Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000005034 decoration Methods 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 abstract description 12
- 239000000956 alloy Substances 0.000 abstract description 12
- 229910018879 Pt—Pd Inorganic materials 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 2
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229910002056 binary alloy Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000005495 investment casting Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910052572 stoneware Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910002058 ternary alloy Inorganic materials 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、ネックレス、ブレスレント、ネクタイピン、
指輪およびイヤリング等の装飾品に用いる白金合金に関
する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to necklaces, bracelets, tie pins,
This invention relates to platinum alloys used for ornaments such as rings and earrings.
従来、装飾用白金合金としてＰｄを１〜２０％含む二元
合金が最も一般的に用いられている。Conventionally, binary alloys containing 1 to 20% Pd have been most commonly used as decorative platinum alloys.
（発明が解決しようとする課題〕
この二元合金は、塑性変形能や鋳造性に優れている反面
、硬さや機械的強度が低く、切削性が劣るために以下の
ような不都合が生ずる。(Problems to be Solved by the Invention) Although this binary alloy has excellent plastic deformability and castability, it has low hardness and mechanical strength, and poor machinability, resulting in the following disadvantages.
すなわち、指輪やネックレスに使用すると、傷が付き易
くしかも変形も起こし易い問題があり、また、ダイヤカ
ット等の高切削性が要求される加工方法では、ねばり現
象が生して反射特性のよいカット面が得られない問題が
ある。In other words, when used for rings and necklaces, there is a problem that they are easily scratched and deformed.Additionally, when using processing methods that require high machinability, such as diamond cutting, a sticky phenomenon occurs, making it difficult to cut with good reflective properties. There is a problem with not being able to get a face.
さらに、石ものと称する宝石類を装着する装身具につい
ては、宝石類を止める爪の強度が弱く、宝石類の脱落事
故につながる場合がある。Furthermore, with regard to jewelry worn with jewelry called stoneware, the strength of the claws that hold the jewelry is weak, which may lead to an accident in which the jewelry falls off.
指輪、ネクタイビンおよびブローチ等の細工は殆どの場
合ろう付は工程を経ることになるが、この際の加熱によ
って材料の軟化が起こり、その箇所の強度が特に問題に
なってくる。In most cases, jewelry such as rings, necktie bins, and brooches go through a brazing process, but the heating that occurs during this process causes the material to soften, making the strength of the parts particularly problematic.
そこで、ＰＬ−Ｐｄ合金の硬さを改善するためにＣｕを
２〜５％程度添加して三元合金とすることも知られてい
るが、この合金は色調に黒味を帯びてしまう問題がある
。Therefore, in order to improve the hardness of the PL-Pd alloy, it is known to add about 2 to 5% Cu to create a ternary alloy, but this alloy has the problem of a blackish tone. be.
本発明は、Ｐｔ８０〜９８．５ ｗ ｔ％とＰｄ１〜１
９ｗｔ％に０．５〜１０ｗｔ％のＲｅを添加したことを
特徴とし、さらに、ｐｔｓｏ〜９８ｗｔ％、Ｐｄ１〜１
９ｗｔ％、Ｒｅ Ｏ，５〜１０ ｗ ｔ％にさらにＣｒ
、Ｍｏ、Ｗの一種以上を０．０５〜３ｗｔχを添加した
ことを特徴とする。In the present invention, Pt80-98.5 wt% and Pd1-1
It is characterized by adding 0.5 to 10 wt% of Re to 9 wt%, and furthermore, ptso~98 wt%, Pd1 to 1
9 wt%, Re O, 5 to 10 wt% and further Cr
, Mo, and W in an amount of 0.05 to 3 wtχ.
Ｐｔ−Ｐｄ合金へのＲｅの添加は、溶湯中のガスの吸蔵
を抑制すると共に、鋳造後の組織を微細化させ、機械的
強度を増大させる効果を有し、また、色調もＰＬ−Ｐｄ
合金の色調を損なうことなく美しい白色を保つことがで
きる。The addition of Re to the Pt-Pd alloy has the effect of suppressing gas occlusion in the molten metal, refining the structure after casting, and increasing mechanical strength.
A beautiful white color can be maintained without damaging the color tone of the alloy.
また、上記合金にＣｒ、Ｍｏ、Ｗの一種以上を添加する
と、Ｐｔ−Ｐｄ合金へのＲｅの添加効果を助長すると共
に、切削性を著しく向上せしめることができる。Further, when one or more of Cr, Mo, and W are added to the above alloy, the effect of adding Re to the Pt-Pd alloy can be promoted and the machinability can be significantly improved.
ここで、Ｒｅの添加量を０．５〜１０ｗｔ％に限定した
理由は、Ｒｅの添加量が０．５ ｗ ｔ％未満の添加で
は硬さや機械的強度の向上が不充分なためであり、１０
ｗｔ％を超えると溶融点が高くなり過ぎて溶解、鋳造が
困難になるためである。Here, the reason why the amount of Re added is limited to 0.5 to 10 wt% is that if the amount of Re added is less than 0.5 wt%, the improvement in hardness and mechanical strength is insufficient. 10
This is because if it exceeds wt%, the melting point becomes too high, making melting and casting difficult.
一方、Ｃｒ、Ｍｏ、Ｗの一種以上の添加量が３ｗｔ％を
超えると、鋳造体表面の酸化が激しくなることに加え、
鋳造体内部に鋳巣が発生し易くなるためである。On the other hand, if the amount of one or more of Cr, Mo, and W added exceeds 3 wt%, the oxidation of the surface of the cast body becomes intense, and
This is because blowholes are likely to occur inside the cast body.
また、０．０５ ｗ ｔ％未満では、Ｒｅとの相乗的な
添加効果が期待できないためである。Moreover, if it is less than 0.05 wt%, a synergistic addition effect with Re cannot be expected.
（実 施 例〕
Ｐｔ４７．５ｇ、Ｐｄ１．Ｏｇ、、Ｒｅ１．５ｇを高周
波吸引精密鋳造機でロストワックス鋳造法により、樹枝
状の形状に鋳造して表に示したＰ ｔ ９５．Ｏｗｔχ
、Ｐ ｄ ２． Ｏｗ ｔ％、Ｒｅ ３． Ｏｗ ｔ％
のＡを得た。(Example) Pt 47.5g, Pd1.
, P d 2. Ow t%, Re 3. Owt%
I got an A.
同様にしてＢ、Ｃを得た。B and C were obtained in the same manner.
さらに、Ｐｔ４９．Ｏｇ、ＰｄＯ，６７５ｇ、ＲｅＯ，
２５ｇ、ＣｒＯ，０２５ｇ、、Ｍｏ０．０２５ｇ、Ｗｏ
、 ０２５ ｇを高周波吸引精密鋳造機によってロスト
ワックス鋳造法で、樹枝状の形状に鋳造して表に示した
Ｐ ｔ ９８．０ ｗ ｔ％、Ｐ ｄ １．３５ ｗ
ｔ％、Ｒｅ ０．５ ｗ ｔ％、Ｃｒ Ｏ，０５ｗ ｔ
％、Ｍ ｏ ０．０５ｗｔ％、Ｗｏ、０５ｗｔ％のＤを
得た。Furthermore, Pt49. Og, PdO, 675g, ReO,
25g, CrO, 025g, Mo0.025g, Wo
, 025 g was cast into a dendritic shape using a lost wax casting method using a high-frequency suction precision casting machine, and the P t 98.0 w t% and P d 1.35 w shown in the table were obtained.
t%, Re 0.5 w t%, Cr O, 05 w t
%, Mo 0.05 wt%, Wo, 05 wt% D were obtained.
以下、同様にＥからＮを得た。Hereinafter, N was obtained from E in the same manner.
この樹枝状鋳造体の硬さと精密部分への流動性、鋳巣の
発生度合、鋳造体表面の鋳肌を観察して従来技術による
合金イから二と比較した。The hardness of this dendritic cast body, the flowability to precision parts, the degree of occurrence of blowholes, and the casting surface of the cast body were observed and compared with alloys A to II made by the prior art.
表
上記表に、本実施例のＡからＮと従来合金イから二の成
分とビッカース硬さおよび鋳造性を示した。Table The above table shows the components, Vickers hardness, and castability of A to N of this example and conventional alloys A to II.
この表に示すように、９５％Ｐｔ−Ｐｄ二元合金の硬さ
６５に対し、本実施例は１０２〜１１０、同様に９０％
Ｐｔ−Ｐｄ二元合金の硬さ７０に対し、本実施例は１３
６〜１４３、同様に８５％ｐｔＰｄ二元合金の硬さ９０
に対し、本実施例は１６３〜１８２であり、硬さの改善
が著しいことがわかる。As shown in this table, the hardness of the 95% Pt-Pd binary alloy is 65, whereas the hardness of this example is 102 to 110, which is also 90%.
While the hardness of the Pt-Pd binary alloy is 70, this example has a hardness of 13.
6-143, similarly hardness of 85% ptPd binary alloy 90
On the other hand, in this example, the hardness was 163 to 182, which shows that the hardness was significantly improved.
また、鋳造性を比較すると、本実施例は鋳造体表面（鋳
肌）が美しく鋳巣も少ない。Moreover, when comparing the castability, the cast body surface (casting surface) of this example is beautiful and there are fewer blowholes.
さらに、精密部分への流動性も良く優れた鋳造性を示し
ている。Furthermore, it has good flowability into precision parts and exhibits excellent castability.
以上詳細に説明した本発明によると、Ｐｔ−Ｐｄ−元合
金にＲｅを添加したことにより、硬さが著しく改善守れ
、精密部分への流動性が非常によくなる。According to the present invention described in detail above, by adding Re to the Pt-Pd-based alloy, the hardness can be significantly improved and the fluidity to precision parts can be extremely improved.
また、溶湯中のガスの吸蔵を抑制し、鋳造後の組織を微
細化させて機械的強度を増大させると共に鋳肌が美しく
鋳巣も少ない効果を有する。It also has the effect of suppressing gas occlusion in the molten metal, making the structure after casting finer, increasing mechanical strength, and creating a beautiful casting surface with fewer porosity.
Claims (1)
Ｒｅ０．５〜１０ｗｔ％からなる装飾用白金合金。 ２、Ｐｔ８０〜９８ｗｔ％、Ｐｄ１〜１９ｗｔ％にＲｅ
０．５〜１０ｗｔ％を添加し、さらにＣｒ、Ｍｏ、Ｗの
うち一種以上を０．０５〜３ｗｔ％添加したことを特徴
とする装飾用白金合金。[Claims] 1. Pt 80 to 98.5 wt%, Pd 1 to 19 wt%,
A decorative platinum alloy containing 0.5 to 10 wt% Re. 2. Re in Pt80-98wt%, Pd1-19wt%
A platinum alloy for decoration, characterized in that 0.5 to 10 wt% is added, and further 0.05 to 3 wt% of one or more of Cr, Mo, and W is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19206888A JPH0243331A (en) | 1988-08-02 | 1988-08-02 | Platinum alloy for ornament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19206888A JPH0243331A (en) | 1988-08-02 | 1988-08-02 | Platinum alloy for ornament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0243331A true JPH0243331A (en) | 1990-02-13 |
Family
ID=16285093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19206888A Pending JPH0243331A (en) | 1988-08-02 | 1988-08-02 | Platinum alloy for ornament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0243331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006024928A1 (en) * | 2004-09-02 | 2006-03-09 | University Of Cape Town | Hardening of metal alloys |
| WO2009059736A1 (en) * | 2007-11-08 | 2009-05-14 | Heimerle + Meule Gmbh | Platinum alloy for jewelry |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743948A (en) * | 1980-08-29 | 1982-03-12 | Tanaka Kikinzoku Kogyo Kk | Platinum alloy for ornamental product |
| JPS61183133A (en) * | 1985-02-08 | 1986-08-15 | Matsushita Electric Ind Co Ltd | Press molding mold for optical glass elements |
-
1988
- 1988-08-02 JP JP19206888A patent/JPH0243331A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743948A (en) * | 1980-08-29 | 1982-03-12 | Tanaka Kikinzoku Kogyo Kk | Platinum alloy for ornamental product |
| JPS61183133A (en) * | 1985-02-08 | 1986-08-15 | Matsushita Electric Ind Co Ltd | Press molding mold for optical glass elements |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006024928A1 (en) * | 2004-09-02 | 2006-03-09 | University Of Cape Town | Hardening of metal alloys |
| WO2009059736A1 (en) * | 2007-11-08 | 2009-05-14 | Heimerle + Meule Gmbh | Platinum alloy for jewelry |
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