JPH1060557A - Gold alloy and its production - Google Patents

Gold alloy and its production

Info

Publication number
JPH1060557A
JPH1060557A JP21842796A JP21842796A JPH1060557A JP H1060557 A JPH1060557 A JP H1060557A JP 21842796 A JP21842796 A JP 21842796A JP 21842796 A JP21842796 A JP 21842796A JP H1060557 A JPH1060557 A JP H1060557A
Authority
JP
Japan
Prior art keywords
weight
gold
alloy
gold alloy
temperature
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
Application number
JP21842796A
Other languages
Japanese (ja)
Inventor
Takeshi Obara
剛 小原
Toshiyuki Osako
敏行 大迫
Koichi Yokozawa
公一 横沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP21842796A priority Critical patent/JPH1060557A/en
Publication of JPH1060557A publication Critical patent/JPH1060557A/en
Pending legal-status Critical Current

Links

Landscapes

  • Adornments (AREA)

Abstract

PROBLEM TO BE SOLVED: To produce high quality gold alloy harder than pure gold and furthermore having noble feeling and color tone equal to those of pure gold. SOLUTION: This hardened gold alloy has the compsn. contg., by weight, >=0.03% Rh, >=0.01% Al, in which the total content of Rh and Al is regulated to <=1%, and the balance substantial Au. Furthermore, as for the method for producing the gold alloy, an alloy having a compsn. contg. >=0.03% Rh, >=0.01% Al, in which the total content of Rh and Al is regulated to <=1%, and the balance substantial Au is subjected to solution treatment at 800 to 900 deg.C according to necessary, is thereafter subjected to aging treatment at 400 to 600 deg.C for 10 to 60min and is hardened.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、指輪、ネックレ
ス、時計等の装飾品や、ペン先、歯科材料、医療器具、
電子機器、測定機器等に用いるための硬質化した金合金
とその製造方法に関し、さらに詳しくは、少量成分の添
加により純金特有の光沢、金属色、美しさ、重量感、高
級感を失わずに硬さを高めた高品位の金合金とその製造
方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ornaments such as rings, necklaces and watches, nibs, dental materials, medical instruments, and the like.
Regarding hardened gold alloys for use in electronic equipment and measuring instruments, and their manufacturing methods, more specifically, by adding small amounts of components, without losing the luster, metal color, beauty, weight, and luxury of gold The present invention relates to a high-grade gold alloy having increased hardness and a method for producing the same.

【0002】[0002]

【従来の技術】高品位の金合金は軟質であるため、高品
位金の装飾品は加工時、使用時に傷が付きやすく、本来
の高級感を維持するのが困難である。例えば、純金イン
ゴットはマイクロビッカース硬度HVが30程度であ
る。そこで、指輪やネックレスなどの金装飾品には銀
(Ag)、銅(Cu)などを25〜40重量%添加して
硬化した、いわゆる18Kや14Kなどが用いられてき
た。
2. Description of the Related Art Since high-grade gold alloys are soft, ornaments made of high-grade gold are easily damaged during processing and use, and it is difficult to maintain the original high-grade appearance. For example, a pure gold ingot has a micro Vickers hardness HV of about 30. For this reason, so-called 18K or 14K, which is obtained by adding 25 to 40% by weight of silver (Ag), copper (Cu) and the like and hardening, has been used for gold ornaments such as rings and necklaces.

【0003】[0003]

【発明が解決しようとする課題】しかし、いわゆる18
Kや14Kなどは純金と比べるとその光沢、金属色、美
しさ、重量感、高級感等が劣っていた。
However, the so-called 18
K, 14K, etc., were inferior in their luster, metal color, beauty, weight, luxury, etc. to pure gold.

【0004】そこで、本発明は、純金よりも硬質で、し
かも純金と同等の高級感、色調を持つ高品位金合金を得
ることを目的とする。
[0004] Therefore, an object of the present invention is to obtain a high-grade gold alloy which is harder than pure gold and has the same high-grade appearance and color tone as pure gold.

【0005】[0005]

【課題を解決するための手段】本発明者らは鋭意研究を
行った結果、金(Au)に、ロジウム(Rh)を0.0
3重量%以上、アルミニウム(Al)を0.01重量%
以上含有させ、かつ、RhおよびAlの合計含有量を1
重量%以下とした、残部が実質的に金からなる合金によ
って、硬質でしかも純金装飾材と同等の高級感、色調を
もつ高品位金合金が得られることを見いだした。
Means for Solving the Problems As a result of intensive studies, the present inventors have found that rhodium (Rh) is added to gold (Au) in 0.0.
3% by weight or more, aluminum (Al) 0.01% by weight
And the total content of Rh and Al is 1
It has been found that a high-grade gold alloy that is hard and has the same high-grade appearance and color tone as a pure gold decorative material can be obtained by using an alloy whose balance is substantially equal to or less than weight% and whose balance is substantially made of gold.

【0006】すなわち、本発明の金合金は、Rhが0.
03重量%以上、Alが0.01重量%以上含まれ、R
hおよびAlの合計含有量が1重量%以下であり、残部
が実質的にAuであることを特徴とする。
That is, the gold alloy of the present invention has a Rh of 0.1.
Not less than 03% by weight and not less than 0.01% by weight of Al
The total content of h and Al is 1% by weight or less, and the balance is substantially Au.

【0007】また、本発明の金合金の製造方法は、Rh
が0.03重量%以上、Alが0.01重量%以上含ま
れ、RhおよびAlの合計含有量が1重量%以下であ
り、残部が実質的にAuである合金を、400〜600
℃の温度において10〜60分の時効処理を施し硬質化
することを特徴とする。
Further, the method for producing a gold alloy of the present invention comprises the steps of:
Alloy containing 0.03% by weight or more of Al, 0.01% by weight or more of Al, a total content of Rh and Al of 1% by weight or less, and the balance being substantially Au,
It is characterized by being subjected to aging treatment at a temperature of 10 ° C. for 10 to 60 minutes to harden.

【0008】また、本発明の他の金合金の製造方法は、
Rhが0.03重量%以上、Alが0.01重量%以上
含まれ、RhおよびAlの合計含有量が1重量%以下で
あり、残部が実質的にAuである合金を、800〜90
0℃の温度で溶体化処理した後、400〜600℃の温
度において時効処理を施し硬質化することを特徴とす
る。
[0008] Another method for producing a gold alloy of the present invention is as follows.
An alloy containing 0.03% by weight or more of Rh, 0.01% by weight or more of Al, a total content of Rh and Al of 1% by weight or less, and substantially Au as the balance is 800 to 90%.
After solution treatment at a temperature of 0 ° C., aging treatment is performed at a temperature of 400 to 600 ° C. to harden.

【0009】[0009]

【発明の実施の形態】本発明の金合金におけるRhとA
lは、軟質の純金を硬化させるために添加され、これら
2成分が添加された相乗効果として金合金が硬化する。
Rhの含有量は0.03重量%以上が、Alの含有量は
0.01重量%以上が必要である。Rhが0.03重量
%未満、または、Alが0.01重量%未満では、硬化
の効果が十分に得られないからである。また、RhとA
lの合計含有量は、1重量%以下が必要である。Rhと
Alの合計含有量が1重量%を超えると、硬化はするも
のの、金の品位が低下する。
BEST MODE FOR CARRYING OUT THE INVENTION Rh and A in the gold alloy of the present invention
l is added to harden soft pure gold, and the gold alloy is hardened as a synergistic effect of the addition of these two components.
The Rh content needs to be 0.03% by weight or more, and the Al content needs to be 0.01% by weight or more. If Rh is less than 0.03% by weight or Al is less than 0.01% by weight, a sufficient curing effect cannot be obtained. Also, Rh and A
The total content of 1 must be 1% by weight or less. If the total content of Rh and Al exceeds 1% by weight, the composition is cured, but the quality of gold is reduced.

【0010】本発明の金合金は、時効処理を施すことで
より一層硬質になる。時効処理は低温であるほど硬質に
なると考えられるが、低温の時効処理ほどある硬度を得
るためには長時間を要するので生産上好ましくない。そ
のため、時効処理の温度は400℃以上が好ましい。ま
た600℃よりも高い温度で時効処理を施すと、時効硬
化が得られない。そのため、時効処理の温度は600℃
以下が好ましい。
[0010] The gold alloy of the present invention is further hardened by aging treatment. It is thought that the aging treatment becomes harder at lower temperatures, but it is not preferable in production because it takes a longer time to obtain a certain hardness as the aging treatment at lower temperatures. Therefore, the temperature of the aging treatment is preferably 400 ° C. or more. When aging treatment is performed at a temperature higher than 600 ° C., age hardening cannot be obtained. Therefore, the aging temperature is 600 ° C
The following is preferred.

【0011】時効処理の時間は、組成、時効処理温度に
より異なるが、一般に10分未満では効果が少なく、6
0分で充分であるので、10〜60分の範囲で適宜選択
すればよい。
The aging time varies depending on the composition and the aging temperature, but generally less than 10 minutes is less effective.
Since 0 minutes is sufficient, it may be appropriately selected in the range of 10 to 60 minutes.

【0012】また、大きな鋳造品など溶質元素の偏析が
多くみられる鋳造品では時効硬化が十分に得られない場
合があるため、時効処理の前に溶体化処理を施し、溶質
元素の偏析を消失させることにより時効硬化を十分発揮
させることができる。溶体化温度は溶質元素が金中に固
溶する温度で行うが、より高温で行う方が短時間で溶体
化できるので生産上好ましい。そのため、組成によって
最適な温度は異なるが、一般に溶体化温度は800〜9
00℃とすればよい。
Further, in cast products such as large cast products in which segregation of solute elements is often observed, age hardening may not be sufficiently obtained. Therefore, a solution treatment is performed before aging treatment to eliminate solute element segregation. By doing so, age hardening can be sufficiently exhibited. The solution treatment is performed at a temperature at which the solute element is solid-dissolved in gold, but it is preferable to perform the solution treatment at a higher temperature in terms of production since the solution can be formed in a short time. Therefore, the optimum temperature varies depending on the composition, but generally the solution solution temperature is 800-9.
The temperature may be set to 00 ° C.

【0013】[0013]

【実施例】以下に、本発明を実施例により具体的に説明
する。まず、高周波真空溶解炉でRhまたはAlの各元
素を1重量%含有したAu−Rh系及びAu−Al系の
母合金を作製し、これら母合金と純金(純度99.99
%)とを原料とした。次に所定の組成となるように配合
した原料を、高周波真空溶解炉で溶解鋳造し、表1、表
2に示す組成の金合金を作製した。これらのインゴット
に各温度で時効処理を施し(実施例1〜実施例5、比較
例1〜比較例4)、また、各温度で溶体化処理をした後
に各温度で時効処理を施し(実施例6、実施例7)、時
効前のインゴットと、各時効時間における硬さ(マイク
ロビッカース硬度、荷重:200gf)を測定した。純
度99.99重量%の純金の硬さとともに、結果を表
1、2に示す。
The present invention will be described below in more detail with reference to examples. First, Au-Rh-based and Au-Al-based master alloys containing 1% by weight of each element of Rh or Al were prepared in a high-frequency vacuum melting furnace, and these master alloys and pure gold (purity 99.99) were prepared.
%) As raw materials. Next, the raw materials blended to have a predetermined composition were melt-cast in a high-frequency vacuum melting furnace to produce gold alloys having the compositions shown in Tables 1 and 2. These ingots were subjected to an aging treatment at each temperature (Examples 1 to 5, Comparative Examples 1 to 4), and after being subjected to a solution treatment at each temperature, an aging treatment was performed at each temperature (Examples). 6, Example 7), the ingot before aging, and the hardness (micro Vickers hardness, load: 200 gf) at each aging time were measured. The results are shown in Tables 1 and 2, together with the hardness of pure gold having a purity of 99.99% by weight.

【0014】[0014]

【表1】 [Table 1]

【0015】[0015]

【表2】 [Table 2]

【0016】表1、表2より本発明の金合金は時効処理
後、純金(純度99.99重量%)および比較例1〜4
に比べ、著しく硬化していることがわかる。
From Tables 1 and 2, the gold alloy of the present invention was subjected to aging treatment, after which it was subjected to pure gold (purity: 99.99% by weight) and Comparative Examples 1-4.
It can be seen that the resin has been significantly hardened as compared with.

【0017】なお、本発明の金合金は、光沢、金属色、
美しさ、重量感、高級感等は純金と全く変わらないもの
である。
The gold alloy of the present invention has a luster, a metallic color,
Beauty, weight, luxury, etc. are no different from pure gold.

【0018】[0018]

【発明の効果】本発明の装飾品用金材料は純金よりも硬
質なことに加え合金成分が少量であるので、傷が付きに
くく純金のもつ高級感、色調を損なわない特性を有す
る。また、圧延等の加工処理することなく鋳造後の熱処
理によって硬質の高品位金合金を製造できるので、デザ
インの自由度が高まり、複雑な形状の金装飾品の製造が
可能になる。
The gold material for decorative articles of the present invention is harder than pure gold and has a small amount of alloying components, so that it is resistant to scratches and does not impair the luxury and color tone of pure gold. In addition, since a hard high-grade gold alloy can be manufactured by heat treatment after casting without performing processing such as rolling, the degree of freedom in design is increased, and it is possible to manufacture a gold ornament having a complicated shape.

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 Rhが0.03重量%以上、Alが0.
01重量%以上含まれ、RhおよびAlの合計含有量が
1重量%以下であり、残部が実質的にAuであることを
特徴とする金合金。
1. The method according to claim 1, wherein Rh is 0.03% by weight or more and Al is 0.1% by weight.
A gold alloy containing at least 0.1% by weight, the total content of Rh and Al is at most 1% by weight, and the balance substantially consisting of Au.
【請求項2】 Rhが0.03重量%以上、Alが0.
01重量%以上含まれ、RhおよびAlの合計含有量が
1重量%以下であり、残部が実質的にAuである、時効
硬化した金合金。
2. The method according to claim 1, wherein Rh is 0.03% by weight or more, and Al is 0.1% by weight.
Age-hardened gold alloy containing at least 0.1% by weight, the total content of Rh and Al is at most 1% by weight, and the balance is substantially Au.
【請求項3】 Rhが0.03重量%以上、Alが0.
01重量%以上含まれ、RhおよびAlの合計含有量が
1重量%以下であり、残部が実質的にAuであり、40
0〜600℃の温度において10〜60分の時効処理が
施されて硬質化した金合金。
3. The method according to claim 1, wherein the content of Rh is 0.03% by weight or more and the content of Al is 0.1% by weight.
0.1 wt% or more, the total content of Rh and Al is 1 wt% or less, and the balance is substantially Au.
A hardened gold alloy that has been subjected to an aging treatment at a temperature of 0 to 600 ° C for 10 to 60 minutes.
【請求項4】 Rhが0.03重量%以上、Alが0.
01重量%以上含まれ、RhおよびAlの合計含有量が
1重量%以下であり、残部が実質的にAuであり、80
0〜900℃の温度で溶体化処理された後、400〜6
00℃の温度において10〜60分の時効処理が施され
て硬質化した金合金。
4. The method according to claim 1, wherein Rh is 0.03% by weight or more, and Al is 0.1% by weight.
At least 01% by weight, the total content of Rh and Al is at most 1% by weight, and the balance is substantially Au;
After solution treatment at a temperature of 0 to 900 ° C, 400 to 6
A hardened gold alloy that has been subjected to aging treatment at a temperature of 00C for 10 to 60 minutes.
【請求項5】 Rhが0.03重量%以上、Alが0.
01重量%以上含まれ、RhおよびAlの合計含有量が
1重量%以下であり、残部が実質的にAuである合金
を、400〜600℃の温度において10〜60分の時
効処理を施し硬質化することを特徴とする金合金の製造
方法。
5. The method according to claim 1, wherein the content of Rh is 0.03% by weight or more and the content of Al is 0.1% by weight.
An alloy containing at least 01% by weight, the total content of Rh and Al being 1% by weight or less, and the balance being substantially Au is subjected to aging treatment at a temperature of 400 to 600 ° C. for 10 to 60 minutes to obtain a hard alloy. A method for producing a gold alloy, comprising:
【請求項6】 Rhが0.03重量%以上、Alが0.
01重量%以上含まれ、RhおよびAlの合計含有量が
1重量%以下であり、残部が実質的にAuである合金
を、800〜900℃の温度で溶体化処理した後、40
0〜600℃の温度において時効処理を施し硬質化する
ことを特徴とする金合金の製造方法。
6. The method according to claim 1, wherein the content of Rh is 0.03% by weight or more and the content of Al is 0.1% by weight.
An alloy containing at least 01% by weight, the total content of Rh and Al being at most 1% by weight, and the balance being substantially Au is subjected to a solution treatment at a temperature of 800 to 900 ° C.
A method for producing a gold alloy, comprising performing aging treatment at a temperature of 0 to 600 ° C. to harden the alloy.
JP21842796A 1996-08-20 1996-08-20 Gold alloy and its production Pending JPH1060557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21842796A JPH1060557A (en) 1996-08-20 1996-08-20 Gold alloy and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21842796A JPH1060557A (en) 1996-08-20 1996-08-20 Gold alloy and its production

Publications (1)

Publication Number Publication Date
JPH1060557A true JPH1060557A (en) 1998-03-03

Family

ID=16719748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21842796A Pending JPH1060557A (en) 1996-08-20 1996-08-20 Gold alloy and its production

Country Status (1)

Country Link
JP (1) JPH1060557A (en)

Similar Documents

Publication Publication Date Title
EP1711641B1 (en) Platinum alloy and method of production thereof
JP2001049364A (en) Hard noble metal alloy member and its production
EP1913168B1 (en) Platinum alloy and method of production thereof
JP2804944B2 (en) Method for producing pure platinum for decoration having high hardness
JPH1060559A (en) Gold alloy and its production
JPS6314830A (en) Sulfidization-resisting hard silver alloy
JPH1060557A (en) Gold alloy and its production
JP3317434B2 (en) Gold alloy and method for producing the same
JPH1060558A (en) Gold alloy and its production
JPS61217542A (en) Gold alloy and its production
JPH1060556A (en) Gold alloy and its production
JPH10158765A (en) Gold alloy and its production
JPH09209059A (en) Gold alloy and its production
JP2007107040A5 (en)
JPH1121641A (en) Gold alloy and its production
JPS60152645A (en) Copper alloy for decoration
JP2003328059A (en) Hardening gold alloy
RU2582836C1 (en) Palladium-based jewellery alloy hardened with intermetallides containing cobalt (versions)
JPH10309204A (en) Compound member using gold
JP2512730B2 (en) Au alloy for decoration
JPH10183271A (en) Gold alloy
JP3158853B2 (en) Gold decorative materials and metal fittings
RU2582837C1 (en) Palladium-based jewellery alloy hardened with intermetallides containing iron (versions)
JPH10183272A (en) Gold alloy
JPH10146646A (en) Production of gold alloy product with lost wax method