JPH10158765A - Gold alloy and its production - Google Patents
Gold alloy and its productionInfo
- Publication number
- JPH10158765A JPH10158765A JP8325448A JP32544896A JPH10158765A JP H10158765 A JPH10158765 A JP H10158765A JP 8325448 A JP8325448 A JP 8325448A JP 32544896 A JP32544896 A JP 32544896A JP H10158765 A JPH10158765 A JP H10158765A
- Authority
- JP
- Japan
- Prior art keywords
- gold alloy
- gold
- weight
- treatment
- aging treatment
- 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
- 229910001020 Au alloy Inorganic materials 0.000 title claims abstract description 69
- 239000003353 gold alloy Substances 0.000 title claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 230000032683 aging Effects 0.000 claims abstract description 41
- 239000010931 gold Substances 0.000 claims abstract description 41
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 3
- 238000005498 polishing Methods 0.000 claims description 22
- 229910052737 gold Inorganic materials 0.000 abstract description 31
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract description 30
- 238000005491 wire drawing Methods 0.000 abstract description 7
- 229910052772 Samarium Inorganic materials 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 12
- 239000000243 solution Substances 0.000 description 11
- 238000005266 casting Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000002932 luster Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000003483 aging Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010949 copper Substances 0.000 description 2
- 102220253765 rs141230910 Human genes 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000005548 dental material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Adornments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、指輪・ネックレス
・時計などの装飾品や、ペン先、歯科材料、医療器具、
電子機器、測定機器などに用いられる金合金とその製造
方法に関し、さらに詳しくは、特定成分の少量添加によ
り純金特有の光沢、色調、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。The present invention relates to decorative articles such as rings, necklaces and watches, nibs, dental materials, medical instruments, and the like.
For more details on gold alloys used in electronic equipment and measuring instruments, and their manufacturing methods, more specifically, high quality with increased hardness without losing the luster, color tone, weight, and luxury of the pure gold by adding small amounts of specific components And a method for producing the same.
【０００２】[0002]
【従来の技術】高品位の金合金は通常、軟質であるた
め、高品位金の装飾品は加工時、使用時に傷が付き易く
て、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２５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
して硬質化した、いわゆるＫ１８やＫ１４などが用いら
れてきた。2. Description of the Related Art Since high-grade gold alloys are usually 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,
The pure gold ingot has a micro Vickers hardness HV of about 25. For this reason, so-called K18 and K14, which are hardened by adding 25 to 40% by weight of silver (Ag), copper (Cu) or the like, have been used for gold ornaments such as rings and necklaces.
【０００３】特開平７−７０６７１号公報では、９９重
量％以上の純度を有する純金に硬さおよび強度を向上さ
せる元素を微量添加し、伸線加工のような塑性加工によ
って純度９９重量％の硬質金を得ることが開示されてい
る。In Japanese Patent Application Laid-Open No. 7-70671, a trace amount of an element for improving hardness and strength is added to pure gold having a purity of 99% by weight or more, and a hard metal having a purity of 99% by weight is formed by plastic working such as wire drawing. It is disclosed to get gold.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記のうち、
いわゆるＫ１８やＫ１４などは、金が９９重量％以上の
純金と比べると金の品位が低下するため、その光沢、色
調、重量感、高級感などが劣っていた。特にいわゆるＫ
２４は純金としての価値が高いので、加工時、使用時に
傷が付き難いＫ２４が要求されている。However, among the above,
The so-called K18, K14, etc., are inferior in the luster, color tone, weight, luxury, etc., because the quality of gold is lower than that of pure gold containing 99% by weight or more of gold. Especially the so-called K
Since 24 has high value as pure gold, K24 which is hard to be damaged during processing and use is required.
【０００５】また、特開平７−７０６７１号公報で開示
されている硬質金は、伸線加工のような厳しい塑性加工
を受ける必要がある。Further, the hard gold disclosed in Japanese Patent Application Laid-Open No. 7-70671 needs to undergo severe plastic working such as wire drawing.
【０００６】そこで、本発明は、伸線加工のような厳し
い塑性加工を受けなくても硬質化され、しかも純金と同
等の高級感、色調をもつ高品位の金合金およびその製造
方法を提供することを目的とする。Accordingly, the present invention provides a high-grade gold alloy which is hardened without being subjected to severe plastic working such as wire drawing, and has a high-grade feeling and color tone equivalent to that of pure gold, and a method for producing the same. The purpose is to:
【０００７】[0007]
【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、サマリウム（Ｓｍ）を０．０５重量％以上
含み、残部が９９重量％以上の金および不可避不純物よ
りなる合金によって、伸線加工のような厳しい塑性加工
を受けなくても硬質で、しかも従来の純金と同等の高級
感、色調をもつ高品位の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 diligent studies, the present inventors have found that an alloy containing samarium (Sm) in an amount of 0.05% by weight or more and a balance of 99% by weight or more of gold and unavoidable impurities is used. It has been found that a high-grade gold alloy that is hard and does not have to be subjected to severe plastic working such as wire drawing, and that has the same high-class feeling and color tone as conventional pure gold can be obtained.
【０００８】すなわち、本発明の金合金は、Ｓｍを０．
０５〜０．３重量％以上含み、残部が９９重量％以上の
Ａｕおよび不可避不純物よりなる（請求項１）。That is, the gold alloy of the present invention has Sm of 0.1.
It contains 0.05 to 0.3% by weight or more, and the balance consists of 99% by weight or more of Au and unavoidable impurities.
【０００９】上記本発明の金合金において、Ｓｍを０．
０５重量％以上含み、残部が９９．９重量％以上のＡｕ
および不可避不純物よりなる金合金（請求項２）は、同
じＫ２４でも商品価値がより高いため好ましい。In the above gold alloy of the present invention, Sm is set to 0.1.
Au containing at least 05% by weight, with the balance being 99.9% by weight or more
Also, a gold alloy (invention 2) composed of unavoidable impurities is preferable because the same K24 has a higher commercial value.
【００１０】本発明の金合金の製造方法は、上記組成を
有する金合金インゴットを溶解法により鋳造して得、次
に、該金合金に、必要により溶体化処理を施した後、時
効処理を施す（請求項１０、１３）。The method for producing a gold alloy according to the present invention is obtained by casting a gold alloy ingot having the above composition by a melting method, and then subjecting the gold alloy to a solution treatment if necessary, followed by an aging treatment. (Claims 10 and 13).
【００１１】上記本発明の金合金の製造方法において、
金合金インゴットの組成がＳｍを０．０５重量％以上含
み、残部が９９．９重量％以上のＡｕおよび不可避不純
物よりなる製造方法（請求項１１）は、製造される金合
金が同じＫ２４でもその商品価値がより高いため好まし
い。上記時効処理は、温度を３００〜４５０℃、時間を
１０〜１２０分とする（請求項１５）のが好ましく、上
記溶体化処理は、温度を７００℃以上とする（請求項１
６）のが好ましい。In the method for producing a gold alloy according to the present invention,
The production method in which the composition of the gold alloy ingot contains Sm at 0.05% by weight or more and the balance is Au at 99.9% by weight or more and unavoidable impurities (Claim 11) is a method for producing a gold alloy ingot having the same K24 even when the same gold alloy is produced. This is preferable because the commercial value is higher. The aging treatment preferably has a temperature of 300 to 450 ° C. and a time of 10 to 120 minutes (Claim 15), and the solution treatment has a temperature of 700 ° C. or more (Claim 1).
6) is preferred.
【００１２】また、上記本発明の金合金の製造方法にお
いて、時効処理を施した金合金に研磨処理を施す（請求
項１２、１４）と、金合金をより硬質化することができ
てより好ましい。上記研磨の具体例としてバレル研磨が
挙げられる（請求項１７）。In the method for producing a gold alloy according to the present invention, the aging-treated gold alloy is preferably polished (claims 12 and 14), because the gold alloy can be hardened. . A specific example of the polishing is barrel polishing (claim 17).
【００１３】[0013]
【発明の実施の形態】本発明の金合金におけるＳｍは、
軟質の純金を硬質化するために添加され、時効処理の
際、添加されたＳｍによって金合金が硬質化される。Ｓ
ｍの含有量は０．０５〜０．３重量％であることが必要
である。Ｓｍの含有量が０．０５重量％未満では硬質化
の効果が十分に得られず、一方、０．３重量％を超える
と金品位が低下して純金の高級感、色調を損なうからで
ある。BEST MODE FOR CARRYING OUT THE INVENTION Sm in the gold alloy of the present invention is
It is added to harden soft pure gold, and at the time of aging treatment, the added Sm hardens the gold alloy. S
The content of m needs to be 0.05 to 0.3% by weight. If the content of Sm is less than 0.05% by weight, the effect of hardening cannot be sufficiently obtained, while if it exceeds 0.3% by weight, the quality of gold deteriorates and the luxury and color tone of pure gold are impaired. .
【００１４】Ａｕの含有量が９９重量％未満では、金品
位が低下することになる。[0014] If the Au content is less than 99% by weight, the gold quality will be degraded.
【００１５】本発明の金合金の製造方法において、Ｓｍ
を０．０５〜０．３重量％含み、残部が９９重量％以上
のＡｕおよび不可避不純物よりなる金合金インゴットを
溶解法により得、次に該金合金を硬質化するために該金
合金に時効処理を施す。In the method for producing a gold alloy according to the present invention, the Sm
Is obtained by melting a gold alloy ingot containing 0.05 to 0.3% by weight of Au and 99% by weight or more of Au and inevitable impurities, and then aging the gold alloy to harden the gold alloy. Perform processing.
【００１６】時効処理は低温で施すほど硬質になると考
えられるが、低温であるほど硬質化するためにより長時
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３００℃以上が好ましい。また４５０℃より
も高い温度で時効処理を施すと、時効硬化による硬質化
が得られない。そのため、時効処理の温度は４５０℃以
下が好ましい。Although it is considered that the aging treatment becomes harder as the temperature is lowered, the lower the temperature, the longer it takes to harden, which is not preferable in production. Therefore, the temperature of the aging treatment is preferably 300 ° C. or more. When aging treatment is performed at a temperature higher than 450 ° C., hardening due to age hardening cannot be obtained. Therefore, the temperature of the aging treatment is preferably 450 ° C. or less.
【００１７】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、１
２０分で充分であるので、１０〜１２０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 20 minutes is sufficient, it may be appropriately selected within a range of 10 to 120 minutes.
【００１８】Ｓｍの偏析が多くみられる大きな鋳造品な
どにそのまま時効処理を施すと時効硬化による硬質化が
十分に得られない場合があるため、時効処理の前に溶体
化処理を施してＳｍの偏析を消失させることにより、時
効硬化による硬質化を十分発揮させることができる。溶
体化処理はＳｍ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、溶体化温度は、組成によって異なるが、
一般に７００℃以上とすればよい。If aging treatment is applied to a large cast product in which segregation of Sm is often observed, hardening due to age hardening may not be sufficiently obtained. By eliminating segregation, hardening by age hardening can be sufficiently exhibited. The solution treatment is carried out at a temperature at which Sm forms a solid solution in gold, but it is preferable to carry out the solution treatment at a higher temperature in terms of production because solution treatment can be performed in a short time. Therefore, the solution temperature depends on the composition,
Generally, the temperature may be set to 700 ° C. or higher.
【００１９】金合金に時効処理を施した後、研磨処理を
施すことによって、この金合金をより硬質化することが
できる。上記研磨の具体例としてバレル研摩、バフ研磨
を挙げることができるが、バレル研磨は、バレル内で形
成される流動層により研磨が行われ、複雑な形状の金合
金でも硬質化が均等に得られるので、好ましい。上記研
磨処理は金合金の表面を平滑にするために施すのではな
い。上記研磨処理により金合金をより硬質化することが
できるのは、研磨という軽微な塑性加工により金合金の
表面を硬質化する、言い換えれば金合金の表面に表面硬
化層を形成するからであると考えられる。By subjecting the gold alloy to an aging treatment and then to a polishing treatment, the gold alloy can be hardened. Barrel polishing and buff polishing can be given as specific examples of the above polishing, but barrel polishing is performed by a fluidized bed formed in the barrel, and even hardening can be obtained even with a gold alloy having a complicated shape. Therefore, it is preferable. The above polishing treatment is not performed to smooth the surface of the gold alloy. The reason that the gold alloy can be hardened by the above-mentioned polishing treatment is that the surface of the gold alloy is hardened by slight plastic processing called polishing, in other words because a surface hardened layer is formed on the surface of the gold alloy. Conceivable.
【００２０】製品形状に成形したり、所望の製品硬さを
得るなどのため、上記溶体化処理、時効処理および研磨
処理を施す前や施した後に伸線加工、圧延加工などの塑
性加工を適宜行うことができる。In order to form into a product shape or obtain a desired product hardness, plastic working such as wire drawing and rolling is performed before and after the above-mentioned solution treatment, aging treatment and polishing treatment. It can be carried out.
【００２１】[0021]
【実施例】以下に、本発明を実施例により具体的に説明
する。The present invention will be described below in more detail with reference to examples.
【００２２】［実施例１〜８、比較例１、２］まず、Ｓ
ｍを１重量％含有したＡｕ−Ｓｍ系の母合金、および純
金（純度９９．９９重量％）を原料とし、所定の組成と
なるようにこれらの原料を配合した。なお、上記Ａｕ−
Ｓｍ系の母合金は、純度９９．９９重量％の純金と金属
Ｓｍを原料として、高周波真空溶解炉で溶解した後、鋳
造することにより作製した。次に、上記で配合した原料
を高周波真空溶解炉で溶解した後、鋳造した。鋳造して
得た金合金インゴットの組成を分析し、また硬さ（マイ
クロビッカース硬度、荷重：２００ｇｆ）を測定した
（硬さは鋳放しのものとして示す）。これらの結果をそ
れぞれ表１、表２に示す。[Examples 1 to 8, Comparative Examples 1 and 2]
Au-Sm-based mother alloy containing 1% by weight of m and pure gold (purity of 99.99% by weight) were used as raw materials, and these raw materials were blended to have a predetermined composition. The Au-
The Sm-based master alloy was produced by melting pure metal having a purity of 99.99% by weight and metal Sm in a high-frequency vacuum melting furnace and then casting. Next, the raw materials mixed as described above were melted in a high-frequency vacuum melting furnace and then cast. The composition of the gold alloy ingot obtained by casting was analyzed, and the hardness (micro Vickers hardness, load: 200 gf) was measured (hardness is shown as cast). These results are shown in Tables 1 and 2, respectively.
【００２３】上記金合金インゴットに時効処理を、表２
に示す温度で表２に示す時間施して、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。これらの結果を表２に示す。なお、実施例
４では、表３に示すように時効時間を伸ばした以外は同
様の時効処理も施して、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。
これらの結果を表３に示す。The gold alloy ingot was subjected to aging treatment, as shown in Table 2.
At the temperature shown in Table 2 for the time shown in Table 2, and the hardness at each aging time (micro Vickers hardness, load: 200 gf)
Was measured. Table 2 shows the results. In Example 4, the same aging treatment was performed except that the aging time was extended as shown in Table 3, and the hardness (micro Vickers hardness, load: 200 gf) at each aging time was measured.
Table 3 shows the results.
【００２４】また、実施例１〜８および比較例１、２の
金合金はいずれも、光沢、色調、重量感、高級感などが
純金と全く変わらなかった（これは、後述する実施例９
〜３２、比較例３〜８でも同様であった）。The gold alloys of Examples 1 to 8 and Comparative Examples 1 and 2 were all the same in luster, color tone, weight and luxuriousness as pure gold.
-32 and Comparative Examples 3 to 8).
【００２５】[0025]
【表１】 [Table 1]
【００２６】[0026]
【表２】 [Table 2]
【００２７】[0027]
【表３】 [Table 3]
【００２８】［実施例９〜１６、比較例３、４］上記実
施例１〜８、比較例１、２の各々において最大のマイク
ロビッカース硬度を示した試料に対してバレル研磨を施
して、硬さ（マイクロビッカース硬度、荷重：２００ｇ
ｆ）を測定した（それぞれ実施例９〜１６、比較例３、
４）。これらの結果を表４に示す。[Examples 9 to 16 and Comparative Examples 3 and 4] The samples showing the maximum micro Vickers hardness in each of Examples 1 to 8 and Comparative Examples 1 and 2 were subjected to barrel polishing to obtain a sample. Sa (micro Vickers hardness, load: 200g
f) was measured (Examples 9 to 16, Comparative Example 3,
4). Table 4 shows the results.
【００２９】[0029]
【表４】 [Table 4]
【００３０】［実施例１７〜２４、比較例５、６］ （１）鋳造して得た金合金インゴット各々に７５０℃で
３０分の溶体化処理を施した後、時効処理を施したこ
と、および（２）鋳造して得た金合金インゴットの硬さ
を測定する代わりに、溶体化処理を施した金合金インゴ
ットの硬さ（マイクロビッカース硬度、荷重：２００ｇ
ｆ）を測定した（硬さは時効処理前のものとして示す）
こと以外は、実施例１〜８、比較例１、２と同様に試験
した（それぞれ実施例１７〜２４、比較例５、６）。Ｓ
ｍの分析値を表５に、金合金インゴットの硬さの測定結
果を表６に示す。Examples 17 to 24, Comparative Examples 5 and 6 (1) Each of the cast gold alloy ingots was subjected to a solution treatment at 750 ° C. for 30 minutes and then to an aging treatment. And (2) Instead of measuring the hardness of the gold alloy ingot obtained by casting, the hardness of the solution-treated gold alloy ingot (micro Vickers hardness, load: 200 g)
f) was measured (hardness is shown as that before aging treatment)
Except for this, tests were performed in the same manner as in Examples 1 to 8 and Comparative Examples 1 and 2 (Examples 17 to 24, Comparative Examples 5 and 6, respectively). S
Table 5 shows the analysis values of m, and Table 6 shows the measurement results of the hardness of the gold alloy ingot.
【００３１】溶体化処理を施した金合金インゴットに時
効処理を、表６に示す温度で表６に示す時間施して、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。これらの結果を表６に示
す。なお、実施例２０では、表７に示すように時効時間
を伸ばした以外は同様の時効処理も施して、各時効時間
における硬さ（マイクロビッカース硬度、荷重：２００
ｇｆ）を測定した。これらの結果を表７に示す。Aging treatment was performed on the solution-treated gold alloy ingot at the temperature shown in Table 6 for the time shown in Table 6, and the hardness (micro Vickers hardness, load: 200 gf) at each aging time was measured. Table 6 shows the results. In Example 20, the same aging treatment was performed except that the aging time was extended as shown in Table 7, and the hardness at each aging time (micro Vickers hardness, load: 200
gf) was measured. Table 7 shows the results.
【００３２】[0032]
【表５】 [Table 5]
【００３３】[0033]
【表６】 [Table 6]
【００３４】[0034]
【表７】 [Table 7]
【００３５】［実施例２５〜３２、比較例７、８］上記
実施例１７〜２４、比較例５、６の各々において最大の
マイクロビッカース硬度を示した試料に対してバレル研
磨を施して、硬さ（マイクロビッカース硬度、荷重：２
００ｇｆ）を測定した（それぞれ実施例２５〜３２、比
較例７、８）。これらの結果を表８に示す。[Examples 25 to 32, Comparative Examples 7 and 8] The samples showing the maximum micro-Vickers hardness in each of Examples 17 to 24 and Comparative Examples 5 and 6 were subjected to barrel polishing. Sa (micro Vickers hardness, load: 2
00gf) (Examples 25 to 32, Comparative Examples 7 and 8, respectively). Table 8 shows the results.
【００３６】[0036]
【表８】 [Table 8]
【００３７】［従来例１］純金（純度９９．９９重量
％）を原料とし、実施例１と同様にして高周波真空溶解
炉でこの純金を溶解した後、鋳造した。[Conventional Example 1] Pure gold (purity 99.99% by weight) was used as a raw material, and the pure gold was melted in a high-frequency vacuum melting furnace in the same manner as in Example 1 and then cast.
【００３８】鋳造した純金インゴットの硬さ（マイクロ
ビッカース硬度、荷重：２００ｇｆ）を測定した。その
結果、２７．６であった。The hardness (micro Vickers hardness, load: 200 gf) of the cast pure gold ingot was measured. As a result, it was 27.6.
【００３９】表２、３、６および７より、本発明の金合
金はいずれも、時効処理、あるいは溶体化処理と時効処
理を施すことによってマイクロビッカース硬度ＨＶが４
５以上になり、従来例１の純金（純度９９．９９重量
％）に比べて十分硬質化することが分かる。また、表４
および８より、本発明の金合金はいずれも、時効処理の
後にバレル研磨を施すことによってマイクロビッカース
硬度ＨＶが６５以上になり、従来例１の純金（純度９
９．９９重量％）に比べて著しく硬質化することが分か
る。According to Tables 2, 3, 6, and 7, all of the gold alloys of the present invention have a micro-Vickers hardness HV of 4 when subjected to aging treatment or solution treatment and aging treatment.
It can be seen that the hardness is 5 or more, which is sufficiently harder than the pure gold (purity 99.99% by weight) of Conventional Example 1. Table 4
And 8, all the gold alloys of the present invention have a micro Vickers hardness HV of 65 or more by barrel polishing after aging treatment, and the pure gold (purity 9
(9.99% by weight).
【００４０】[0040]
【発明の効果】本発明の金合金は、伸線加工のような厳
しい塑性加工を受けなくても硬質化されることに加え、
純金に添加する元素成分が少量であるので、加工時、使
用時に傷が付き難く、純金のもつ光沢、色調、重量感、
高級感を損なわない特性を有する。また、塑性加工する
ことなく鋳造のままの時効処理によっても硬質の高品位
金合金を製造することができるので、デザインの自由度
が高まり、複雑な形状の金装飾品などの製造が可能にな
る。The gold alloy of the present invention can be hardened without undergoing severe plastic working such as wire drawing.
Since the amount of elemental components added to pure gold is small, it is difficult to be scratched during processing and use, and the luster, color tone, and weight of pure gold,
Has characteristics that do not impair luxury. In addition, since a hard high-grade gold alloy can be produced by aging treatment without casting, as-cast, the degree of freedom in design is increased, and the production of gold ornaments having complicated shapes becomes possible. .
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｃ２２Ｆ 1/00 ６７４ Ｃ２２Ｆ 1/00 ６７４ ６７５ ６７５ ６８２ ６８２ ６９１ ６９１Ｂ ６９１Ｃ ──────────────────────────────────────────────────の Continuation of front page (51) Int.Cl. 6 Identification code FI C22F 1/00 674 C22F 1/00 674 675 675 682 682 692 691 691B 691C
Claims (17)
部が９９重量％以上のＡｕおよび不可避不純物よりなる
金合金。1. A gold alloy containing 0.05 to 0.3% by weight of Sm and a balance of 99% by weight or more of Au and unavoidable impurities.
９９．９重量％以上のＡｕおよび不可避不純物よりなる
金合金。2. A gold alloy containing 0.05% by weight or more of Sm and the balance consisting of 99.9% by weight or more of Au and unavoidable impurities.
記載の金合金。3. The gold alloy according to claim 1, which has been subjected to an aging treatment.
項１または２に記載の金合金。4. The gold alloy according to claim 1, wherein a polishing treatment is performed after the aging treatment.
求項１または２に記載の金合金。5. The gold alloy according to claim 1, wherein an aging treatment is performed after the solution treatment.
後、研磨処理が施された請求項１または２に記載の金合
金。6. The gold alloy according to claim 1, wherein the aging treatment is performed after the solution treatment, and then the polishing treatment is performed.
時間が１０〜１２０分である請求項３〜６のいずれかに
記載の金合金。7. The aging treatment is performed at a temperature of 300 to 450 ° C.
The gold alloy according to any one of claims 3 to 6, wherein the time is 10 to 120 minutes.
る請求項５または６に記載の金合金。8. The gold alloy according to claim 5, wherein the temperature of the solution treatment is 700 ° C. or higher.
６に記載の金合金。9. The gold alloy according to claim 4, wherein the polishing is barrel polishing.
残部が９９重量％以上のＡｕおよび不可避不純物よりな
る金合金インゴットを溶解法により得、次に該金合金に
時効処理を施すことからなる金合金の製造方法。10. A composition containing 0.05 to 0.3% by weight of Sm,
A method for producing a gold alloy, comprising: obtaining a gold alloy ingot having a balance of 99% by weight or more of Au and unavoidable impurities by a melting method, and then subjecting the gold alloy to aging treatment.
重量％以上含み、残部が９９．９重量％以上のＡｕおよ
び不可避不純物よりなる請求項１０に記載の金合金の製
造方法。11. The gold alloy ingot has an Sm of 0.05.
The method for producing a gold alloy according to claim 10, wherein the gold alloy contains at least 99.9% by weight of Au and unavoidable impurities.
１０または１１に記載の金合金の製造方法。12. The method for producing a gold alloy according to claim 10, wherein a polishing treatment is performed after the aging treatment.
項１０または１１に記載の金合金の製造方法。13. The method for producing a gold alloy according to claim 10, wherein an aging treatment is performed after the solution treatment.
後、研磨処理を施す請求項１０または１１に記載の金合
金の製造方法。14. The method for producing a gold alloy according to claim 10, wherein the aging treatment is performed after the solution treatment, and then the polishing treatment is performed.
℃、時間を１０〜１２０分とする請求項１０〜１４のい
ずれかに記載の金合金の製造方法。15. The aging treatment is performed by setting the temperature to 300 to 450.
The method for producing a gold alloy according to any one of claims 10 to 14, wherein the temperature and the time are 10 to 120 minutes.
ある請求項１３または１４に記載の金合金の製造方法。16. The method for producing a gold alloy according to claim 13, wherein the solution treatment is performed at a temperature of 700 ° C. or higher.
たは１４に記載の金合金の製造方法。17. The method for producing a gold alloy according to claim 12, wherein the polishing is barrel polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8325448A JPH10158765A (en) | 1996-12-05 | 1996-12-05 | Gold alloy and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8325448A JPH10158765A (en) | 1996-12-05 | 1996-12-05 | Gold alloy and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10158765A true JPH10158765A (en) | 1998-06-16 |
Family
ID=18176984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8325448A Pending JPH10158765A (en) | 1996-12-05 | 1996-12-05 | Gold alloy and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10158765A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016020526A (en) * | 2014-07-14 | 2016-02-04 | 株式会社グローバルコーポレーション | 999 gold alloy and 999 silver alloy having high hardness and high compressive strength and manufacturing method thereof |
| CN110468297A (en) * | 2019-09-09 | 2019-11-19 | 上海电缆研究所有限公司 | A kind of high performance audio transmission alloy wire and preparation method thereof |
-
1996
- 1996-12-05 JP JP8325448A patent/JPH10158765A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016020526A (en) * | 2014-07-14 | 2016-02-04 | 株式会社グローバルコーポレーション | 999 gold alloy and 999 silver alloy having high hardness and high compressive strength and manufacturing method thereof |
| CN110468297A (en) * | 2019-09-09 | 2019-11-19 | 上海电缆研究所有限公司 | A kind of high performance audio transmission alloy wire and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7410546B2 (en) | Platinum alloy and method of production thereof | |
| EP1312687A1 (en) | Hard noble-metal alloy member and process for producing the same | |
| EP1913168B1 (en) | Platinum alloy and method of production thereof | |
| EP1820867A1 (en) | Platin alloy and method for its manufacture | |
| JPH10158765A (en) | Gold alloy and its production | |
| JP3317434B2 (en) | Gold alloy and method for producing the same | |
| JPH1017961A (en) | High strength titanium alloy, product thereof and production of the same product | |
| JPH07310132A (en) | High purity hard platinum material | |
| JPH1121641A (en) | Gold alloy and its production | |
| JPH0770670A (en) | Gold ornament material hardened by alloying with small amount of component | |
| JPH0820830A (en) | Production of pure platinum for ornament, having high hardness | |
| JPH1060559A (en) | Gold alloy and its production | |
| JPH1060558A (en) | Gold alloy and its production | |
| JPH1060557A (en) | Gold alloy and its production | |
| JPH10183271A (en) | Gold alloy | |
| JPH10183272A (en) | Gold alloy | |
| JPH1060556A (en) | Gold alloy and its production | |
| EP3835440A1 (en) | Article superior in design and method for producing the same | |
| JPS61281843A (en) | Platinum alloy for ornament | |
| JP2897974B2 (en) | Age hardenable gold alloy | |
| JPS605831A (en) | Age hardening au alloy for white ornament | |
| JPH10309204A (en) | Compound member using gold | |
| JP2003328059A (en) | Hardening gold alloy | |
| RU2582836C1 (en) | Palladium-based jewellery alloy hardened with intermetallides containing cobalt (versions) | |
| JPH0723529B2 (en) | Decorative Au alloy member having surface hardened layer |