JPS6324051A - Au alloy member for ornamentation having hardened surface layer - Google Patents
Au alloy member for ornamentation having hardened surface layerInfo
- Publication number
- JPS6324051A JPS6324051A JP16661886A JP16661886A JPS6324051A JP S6324051 A JPS6324051 A JP S6324051A JP 16661886 A JP16661886 A JP 16661886A JP 16661886 A JP16661886 A JP 16661886A JP S6324051 A JPS6324051 A JP S6324051A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- hardness
- alloy member
- hardened
- iron group
- 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.)
- Granted
Links
- 229910001020 Au alloy Inorganic materials 0.000 title claims abstract description 36
- 239000002344 surface layer Substances 0.000 title description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 150000004767 nitrides Chemical class 0.000 claims abstract description 7
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000011572 manganese Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 6
- -1 iron group metals Chemical class 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- RRZKHZBOZDIQJG-UHFFFAOYSA-N azane;manganese Chemical compound N.[Mn] RRZKHZBOZDIQJG-UHFFFAOYSA-N 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 abstract description 9
- 150000002739 metals Chemical class 0.000 abstract description 5
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 238000006748 scratching Methods 0.000 abstract 1
- 230000002393 scratching effect Effects 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 239000010931 gold Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910000967 As alloy Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003353 gold alloy Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000711 U alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、すぐれた表面硬さを有し、特に指輪、ネッ
クレス等の装飾品として用いるのに適した、窒化処理に
よる表面硬化層を有するＡｕ合金部材に関するものであ
る。Detailed Description of the Invention (Industrial Field of Application) The present invention has a hardened surface layer formed by nitriding, which has excellent surface hardness and is particularly suitable for use as ornaments such as rings and necklaces. This relates to an Au alloy member.
周知のように、金はすべての金属中化学的に最も安定し
た金属で、永く美麗な黄金色を保持できる上に、物理的
にはきわめて柔軟で、あらゆる金属中震延性にもつとも
すぐれ、細工が容易であるところから、金ならびにＡｕ
合金は古来より装飾用材料として広く利用されてきた。As is well known, gold is chemically the most stable metal among all metals, and can maintain a beautiful golden color for a long time.It is also physically extremely flexible, has excellent ductility among all metals, and is easy to work with. Gold and Au are easy to use.
Alloys have been widely used as decorative materials since ancient times.
純金はきわめて軟かくて（Ｕつきやすいため、これにＡ
ｇ、Ｃｕ等を添加して適度の硬さをもたせた、いわゆる
１８に、１４に等のＡｕ合金が一般に装飾用材料として
利用されているが、このようなＡｕ合金でも装飾品とし
て身につけたときにはなお傷がつきやすいという欠点を
有する。Pure gold is extremely soft (it tends to stick to U), so
Au alloys such as so-called 18 and 14, which have been given appropriate hardness by adding g, Cu, etc., are generally used as decorative materials. Sometimes they still have the disadvantage of being easily scratched.
また、近年ダイヤカット法といわれる鋭い切込みによる
鮮明な模様をほどこしたＡｕ金合金指輪、ネックレス等
が酋及してきたが、従来のＡｕ合金では軟質のためエツ
ジが摩耗し、模様が不鮮明になることが倒々問題となっ
ており、このような問題を克服するためにＡｕ合金を硬
くする工夫が種々試みられている。In addition, in recent years, Au gold alloy rings and necklaces with clear patterns created by sharp cuts called the diamond cutting method have become popular, but because conventional Au alloys are soft, the edges wear out and the patterns become unclear. has become a frequent problem, and various attempts have been made to make Au alloys harder in order to overcome these problems.
一方、Ａｕ合金を装飾品として身につけたとき、その表
面に傷がつかないためには、通常ＡＬＪ合金部材の硬さ
がＨＶ （ビッカース硬さ）：３５０以上、好ましく
はＨＶ：５００以上がよいとされており、例えば腕時計
の文字盤ガラスの硬さはおよそ目■：５００であるから
、ＨＶ ：５００以上のＡｕ合金ができれば、この文字
盤ガラスでも備がつかない硬い装飾用のＡ１合金部材が
提供できることになる。On the other hand, in order to avoid scratches on the surface of the Au alloy when worn as an ornament, the hardness of the ALJ alloy member is usually HV (Vickers hardness): 350 or higher, preferably HV: 500 or higher. For example, the hardness of the dial glass of a wristwatch is approximately 500 mm, so if an Au alloy with a hardness of HV:500 or higher can be made, it can be used as a hard decorative A1 alloy member that even this dial glass cannot provide. can be provided.
しかしながら、今のところ、種々のＡｕ合金に熱処理を
施し、あるいはさらに加工硬化を利用しても、その硬さ
は精々）−１ｖ ：３００どまりであって、上記のよう
な要求を満たすＡｕ合金の開発には成功していないのが
現状である。However, at present, even if various Au alloys are heat treated or further work hardened, their hardness is at most -1v:300. At present, development has not been successful.
そこで、本発明者等は、上述のような観点から、硬質、
特に高い表面硬さを有するＡｕ合金部材を得べく研究を
行なった結末、重重％で、
Ｍｎ：５〜２５％、
を含有し、さらに必要に応じて、
Ｎｉ、Ｃｏ、およびＦｅ （以下、これらを総称して
鉄族金属という）のうちの１種または２種以上：０．５
〜２０％、
Ａｇ、Ｃｕ 、およびＰｄのうちの１種または２種以上
：３〜３５％、
のうちのいずれか、または両方を含有し、残りが八〇と
不可避不純物からなる組成を有するＡｕ合金を基体部材
とし、これの表面に窒化処理を施すと、表面より拡散侵
入したＮが、合金成分としてのＭｎと窒化マンガン、さ
らにＭｎおよび鉄族金属と複合窒化物を形成して、ビッ
カース硬さで５００以上を有する表面硬化層が形成され
るようになるという知見を得たのである。Therefore, from the above-mentioned viewpoint, the present inventors
As a result of conducting research to obtain an Au alloy member having particularly high surface hardness, we found that it contains Mn: 5 to 25% in terms of weight percentage, and further contains Ni, Co, and Fe (hereinafter referred to as these) as necessary. One or more of the following (collectively referred to as iron group metals): 0.5
~20%, one or more of Ag, Cu, and Pd: 3 to 35%, or both, with the remainder consisting of 80% and unavoidable impurities. When an alloy is used as a base material and the surface is nitrided, N diffuses into the surface and forms composite nitrides with Mn and manganese nitride as alloy components, and further with Mn and iron group metals, resulting in Vickers hardness. They found that a hardened surface layer having a hardness of 500 or more is formed.
この発明は、上記知見にもとづいてなされたものであっ
て、以下にＡｕ合金基体の成分組成ｆ！囲を上記の通り
に限定した理由を説明する。This invention was made based on the above knowledge, and the composition f! of the Au alloy base is as follows. The reason for limiting the range as above will be explained.
（ａ）Ｍｎ
ｊｙｌｎ成分は、窒化処理に際して、窒化マンガン、さ
らに同じく必要により合金成分として含有させた鉄族金
属と共に、複合窒化物を形成し、もってＡｕ合金基体の
表面に、ごツカース硬さで５００以上の高硬度を有する
窒化処理表面硬化層を形成するのに不可欠な成分である
が、その含有量が５％未満では所望の高硬度をもった表
面硬化層を形成することができず、一方２５％を越えて
含有させると、窒化処理表面硬化層に剥離現象が現われ
るようになることから、その含有量を５〜２５％と定め
た。(a) During the nitriding process, the Mn jyln component forms a composite nitride with manganese nitride and iron group metals, which are also included as alloy components if necessary, and forms a complex nitride on the surface of the Au alloy substrate with hardness. It is an essential component for forming a nitrided surface hardening layer with a high hardness of 500 or more, but if its content is less than 5%, a surface hardening layer with the desired high hardness cannot be formed. On the other hand, if the content exceeds 25%, a peeling phenomenon will appear in the nitrided hardened surface layer, so the content was set at 5 to 25%.
（ｂ）鉄族金属
これらの成分には、Ｍｎと複合窒化物を形成して高硬度
の窒化処理表面硬化層を形成するほか、Ａｕ合金基体の
強度を向上させる作用があるので、これらの特性が要求
される場合に必要に応じて含有されるが、その含有ｍが
０．５％未満では、所望の高強度を確保することができ
ないばかりでなく、所望の硬さ向上効果が１ｑられず、
一方２０％を越えて含有させると、Ａｕのもつすぐれた
特性を十分に発揮することができなくなることから、そ
の含有量を０５〜２０％と定めた。(b) Iron group metals These components form a composite nitride with Mn to form a highly hard nitrided surface hardening layer, and also have the effect of improving the strength of the Au alloy base, so these characteristics It is contained as necessary when m is required, but if the content m is less than 0.5%, not only the desired high strength cannot be secured, but also the desired hardness improvement effect is not achieved by 1q. ,
On the other hand, if the content exceeds 20%, the excellent properties of Au cannot be fully exhibited, so the content was set at 05 to 20%.
（Ｃ） Ａｑ 、 Ｃｕ 、およびＰｄこれらの成分に
は、素地に固溶して、これを固溶強化する作用があるの
で、さらに−段の強度が要求される場合に必要に応じて
含有されるが、その含有量が３％未満では所望の強度向
上効果が得られず、一方３５％を越えて含有させると、
Ａ ＩＪのもつ特性を十分に発揮することができなくな
ることから、その含有ｍを３〜３５％と定めた。(C) Aq, Cu, and Pd These components have the effect of forming a solid solution in the base material and strengthening it as a solid solution, so they may be included as necessary when an even higher level of strength is required. However, if the content is less than 3%, the desired strength improvement effect cannot be obtained, while if the content exceeds 35%,
Since the characteristics of AIJ cannot be fully exhibited, its content m is set at 3 to 35%.
なお、この発明のＡｕ合金基体の溶解に際して、脱酸剤
としてｃｄや７−ｎなどを使用する場合があるが、それ
ぞれ３％以下の含有ならば、前記基体の特性が何ら損な
われるものではない。Incidentally, when melting the Au alloy substrate of the present invention, CD or 7-N may be used as a deoxidizing agent, but if the content of each is 3% or less, the properties of the substrate will not be impaired in any way. .
この発明のＡｕ合金部材の製造に際して適用される窒化
処理、特にイオン窒化処理は次のようにして実施される
。すなわち、
０．５〜１０Ｔｏｒｒの内部圧力となるように、Ｈ２と
ＮＺとの混合ガスまたはＮＨ３ガスを導入した密閉容器
内に、窒化処理を施すべきＡｕ合金基体を陰極として封
入し、この陰極と、別に封入された陽極との間に１００
〜１５００Ｖの電圧を印加してグロー放電を発生させる
ことによって行なわれ、この結果前記放電によってイオ
ン化された雰囲気中の窒素がＡｕ合金基体（陰極）に衝
突して、そのイオンのもつ高い運動エネルギーによりＡ
ｕ合金基体が加熱され、その表面のイオン窒化処理が達
成されるようになるのである。The nitriding process, particularly the ion nitriding process, applied in manufacturing the Au alloy member of the present invention is carried out as follows. That is, the Au alloy substrate to be nitrided is sealed as a cathode in a closed container into which a mixed gas of H2 and NZ or NH3 gas is introduced so that the internal pressure is 0.5 to 10 Torr, and this cathode and , 100 between the separately encapsulated anode and the separately encapsulated anode.
This is done by applying a voltage of ~1500V to generate a glow discharge, and as a result, the nitrogen in the atmosphere ionized by the discharge collides with the Au alloy substrate (cathode), and the high kinetic energy of the ions causes A
The u-alloy substrate is heated and ion nitriding of its surface is achieved.
つぎに、この発明のＡｕ合金部材を実施例により説明す
る。Next, the Au alloy member of the present invention will be explained using examples.
ＴＩＧアークを用い、銅製水冷るつぼ内で、必要な添加
金属と電解へ〇を溶解して、それぞれ第１表に示される
成分組成をもったＡＵ合金溶潟：１０ｇを調製した後、
ボタン・インゴットに金型鋳造し、このインゴットを表
面研磨して寸法：１０ｍ口Ｘ １ ｍｍを有する試験片
（／＼Ｕ合金基体）とし、この試旅片の一部を用いて強
度を計画する目的で抗折力を測定すると共に、マイクロ
ビッカース硬さを測定した後、さらに、５Ｔｏｒｒの圧
力を有するＮ２とＮ２との混合ガス（混合比１：１）雰
囲気中、温度：８３０℃で５時間の条件にてイオン窒化
処理を１Ｍ寸ことによって、本発明Ａｕ合金部材１〜１
６、および基体の組成が従来Ａｌ１合金に相当する組成
を有する比較Ａｕ合金部材１〜３をそれぞれ製造した。Using a TIG arc, in a copper water-cooled crucible, necessary additive metals and 〇 were dissolved electrolytically to prepare 10 g of AU alloy melt having the composition shown in Table 1.
A button ingot is cast in a mold, and the surface of this ingot is polished to obtain a test piece (/\U alloy base) with dimensions: 10 m opening x 1 mm, and a portion of this test piece is used to plan the strength. After measuring the transverse rupture strength and micro-Vickers hardness for the purpose, further, in an atmosphere of a mixed gas of N2 and N2 (mixing ratio 1:1) with a pressure of 5 Torr, at a temperature of 830 ° C. for 5 hours. By carrying out ion nitriding treatment under the conditions of 1M dimension, Au alloy members 1 to 1 of the present invention
6 and Comparative Au alloy members 1 to 3 each having a base composition corresponding to that of a conventional Al1 alloy were manufactured.
ついで、この結果得られた各種の部材について、その表
面最高硬さを、マイクロビッカースにより測定した。こ
れらの３１１１定結果を第１表に合わせて示した。Then, the maximum surface hardness of the various members obtained as a result was measured using a micro-Vickers method. These 3111 results are also shown in Table 1.
第１表に示される結果から、本発明のＡｕ合金部材１〜
１６は、いずれも窒化処理により表面硬さの格段の向上
が得られたのに対し、比較ＡＬＩ合金部材１．２ ＜１
８に合金および１４に合金）では、窒化処理によっても
、その表面硬さは殆んど変らず、さらに硬質Ａ ＩＩ金
合金Ｗ４成された比較Ａ ｔＪ重合部材３においても殆
んど硬さの向上が得られていないことが、明らかである
。From the results shown in Table 1, Au alloy members 1 to 1 of the present invention
Comparative ALI alloy members 1.2 <1.
Alloy No. 8 and Alloy No. 14) have almost no change in surface hardness even after nitriding, and even in comparison A tJ polymer member 3 made of hard A II gold alloy W4, the hardness hardly changes. It is clear that no improvement has been achieved.
上）本のように、この発明のＡｌ１合金部材は、特に窒
化処理により形成された著しく硬い表面硬化層を有する
ので、これらの特性が要求される装飾用部材として使用
した場合にきわめて長期に亘ってすぐれた性能を発揮す
るものである。Above) As shown in the book, the Al1 alloy member of the present invention has a particularly hard surface hardening layer formed by nitriding, so it will last an extremely long time when used as a decorative member that requires these properties. It exhibits excellent performance.
Claims (4)
上重量％）を有するＡｕ合金基体の表面に、窒化マンガ
ンによつて硬化された窒化処理表面硬化層を形成してな
る装飾用Ａｕ合金部材。(1) A nitrided surface hardening layer hardened with manganese nitride on the surface of an Au alloy substrate having a composition (weight %) containing Mn: 5 to 25%, with the remainder consisting of Au and unavoidable impurities. A decorative Au alloy member formed by forming.
上重量％）を有するＡｕ合金基体の表面に、Ｍｎと、鉄
族金属との複合窒化物によつて硬化された窒化処理表面
硬化層を形成してなる装飾用Ａｕ合金部材。(2) Contains Mn: 5-25%, one or more of Ni, Co, and Fe (hereinafter referred to as iron group metals): 0.5-20%, and the rest is Au and unavoidable impurities. A decorative Au alloy member comprising a nitrided surface hardened layer hardened with a composite nitride of Mn and an iron group metal on the surface of an Au alloy base having a composition (weight %) consisting of:
３〜３５％、 を含有し、残りがＡｕと不可避不純物からなる組成（以
上重量％）を有するＡｕ合金基体の表面に、窒化マンガ
ンによって硬化された窒化処理表面硬化層を形成してな
る装飾用Ａｕ合金部材。(3) Contains Mn: 5 to 25%, and further contains one or more of Ag, Cu, and Pd:
3 to 35%, with the remainder consisting of Au and unavoidable impurities (wt%). Au alloy member.
３〜３．５％、 を含有し、残りがＡｕと不可避不純物からなる組成（以
上重量％）を有するＡｕ合金基体の表面に、Ｍｎと鉄族
金属の複合窒化物によって硬化された窒化処理表面硬化
層を形成してなる装飾用Ａｕ合金部材。(4) Contains Mn: 5 to 25%, one or more of Ni, Co, and Fe (hereinafter referred to as iron group metals): 0.5 to 20%, and further contains Ag, Cu, and one or more of Pd:
A nitrided surface hardened with a composite nitride of Mn and an iron group metal is applied to the surface of an Au alloy substrate having a composition (weight%) containing 3 to 3.5% of the following: and the remainder consisting of Au and unavoidable impurities. A decorative Au alloy member formed with a hardened layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16661886A JPH0723530B2 (en) | 1986-07-17 | 1986-07-17 | Decorative Au alloy member having surface hardened layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16661886A JPH0723530B2 (en) | 1986-07-17 | 1986-07-17 | Decorative Au alloy member having surface hardened layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6324051A true JPS6324051A (en) | 1988-02-01 |
| JPH0723530B2 JPH0723530B2 (en) | 1995-03-15 |
Family
ID=15834641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16661886A Expired - Lifetime JPH0723530B2 (en) | 1986-07-17 | 1986-07-17 | Decorative Au alloy member having surface hardened layer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723530B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0493813A (en) * | 1990-08-03 | 1992-03-26 | Fuji Elelctrochem Co Ltd | Manufacture of optical isolator |
| JP2001335861A (en) * | 2000-05-26 | 2001-12-04 | Tokuriki Honten Co Ltd | Gold alloy for ornament |
| JP2001335860A (en) * | 2000-05-26 | 2001-12-04 | Tokuriki Honten Co Ltd | Gold alloy for ornament |
| FR2815044A1 (en) * | 2000-10-06 | 2002-04-12 | Cookson Metaux Precieux Sa | GRAY GOLD ALLOY 18 CARATS FOR JEWELRY, WITHOUT NICKEL AND WITHOUT PALLADIUM |
| CN109811176A (en) * | 2019-03-25 | 2019-05-28 | 杭州辰卓科技有限公司 | A kind of electron device package high-damping bonding line billon and its technique |
-
1986
- 1986-07-17 JP JP16661886A patent/JPH0723530B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0493813A (en) * | 1990-08-03 | 1992-03-26 | Fuji Elelctrochem Co Ltd | Manufacture of optical isolator |
| JP2001335861A (en) * | 2000-05-26 | 2001-12-04 | Tokuriki Honten Co Ltd | Gold alloy for ornament |
| JP2001335860A (en) * | 2000-05-26 | 2001-12-04 | Tokuriki Honten Co Ltd | Gold alloy for ornament |
| FR2815044A1 (en) * | 2000-10-06 | 2002-04-12 | Cookson Metaux Precieux Sa | GRAY GOLD ALLOY 18 CARATS FOR JEWELRY, WITHOUT NICKEL AND WITHOUT PALLADIUM |
| US6576187B2 (en) | 2000-10-06 | 2003-06-10 | Cookson Metaux Precieux Sa | 18 carat grey gold alloy, without nickel and without palladium, for jewellery |
| GB2367833B (en) * | 2000-10-06 | 2005-02-09 | Cookson Metaux Precieux Sa | 18 Carat grey gold alloy, without nickel and without palladium, for jewellery |
| CN109811176A (en) * | 2019-03-25 | 2019-05-28 | 杭州辰卓科技有限公司 | A kind of electron device package high-damping bonding line billon and its technique |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0723530B2 (en) | 1995-03-15 |
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