JPH0332618B2 - - Google Patents
Info
- Publication number
- JPH0332618B2 JPH0332618B2 JP3290284A JP3290284A JPH0332618B2 JP H0332618 B2 JPH0332618 B2 JP H0332618B2 JP 3290284 A JP3290284 A JP 3290284A JP 3290284 A JP3290284 A JP 3290284A JP H0332618 B2 JPH0332618 B2 JP H0332618B2
- Authority
- JP
- Japan
- Prior art keywords
- golden
- decorative
- alloy
- workability
- copper
- 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
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 12
- 241000784726 Lycaena thetis Species 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000010970 precious metal Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 239000000956 alloy Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 210000004243 sweat Anatomy 0.000 description 3
- 229910001020 Au alloy Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003353 gold alloy Substances 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical group CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Landscapes
- Adornments (AREA)
Description
本発明は、装飾用金合金の代用として用いられ
る黄金色系銅合金に関するものである。
近年の省資源化に伴い、装飾用金合金の代用と
して黄金色系合金材料が要求されている。
一般に装飾品に於いては、耐食性が良好である
ことが具備条件の一つとされている。更には、こ
れ等の装飾品は装飾性の面から、複雑な加工が施
される為、その加工が容易であること、さらにそ
の色が黄金色に近いことも併せて要求されてい
る。
ところで、装飾用黄金色系材料として用いられ
ている合金としてはZn30wt％、残部Cuより成る
黄銅合金があるが、この合金は耐食性が悪く、複
雑な形状に加工しづらい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、銅系合金で耐食性、加工性（冷間
加工性、切削性）に優れ、かつ黄金色を有する装
飾用黄金色系銅合金を提供せんとするものであ
る。
本発明による装飾用黄金色系銅合金はZn7〜
45wt％、Pb0.01〜3wt％、貴金属0.01〜2wt％、
残部Cuより成る合金である。
本発明による装飾用黄金色系銅合金に於いて、
Znを添加した理由は、ZnはCuと合金を作つた際
に、黄金色が得られる為であり、7wt％未満でそ
の効果が薄く、45wt％を超えるとβ相が現われ、
薄板に加工することが困難になる為である。
また、Pbを添加した理由は、PbはCu中にほと
んど固溶せず、ほとんどが結晶粒界に粒状になつ
て析出し、切削性が良好になる為であり、0.01wt
％未満ではその効果が薄く、3wt％を超えると耐
食性が低下してくる為である。
また、貴金属を添加した理由は、貴金属の微量
添加によりCu−Zn−Pb合金の耐食性をさらに向
上させる為であり、0.01wt％未満ではその効果が
薄く、2wt％を超えてもあまり顕著な変化が見ら
れなくなる為である。ここで言う貴金属とは、
Au、Ag、Pt、Pd、Rh、Ru、Ir、Osを含めての
ことである。
以下本発明による装飾用黄金色系銅合金の効果
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１〜４の装飾用
黄金色系銅合金と従来例１、２の装飾用黄金色系
銅合金の色、加工性（冷間加工性、切削）、耐汗
性についてテストしたところ第２表のような結果
を得た。
The present invention relates to a golden copper alloy used as a substitute for decorative gold alloys. With the recent efforts to save resources, golden alloy materials are required as a substitute for decorative gold alloys. In general, one of the requirements for decorative items is good corrosion resistance. Furthermore, since these ornaments are subjected to complex processing for decorative purposes, they are also required to be easy to process and to have a color close to golden yellow. Incidentally, an alloy used as a decorative golden material is a brass alloy consisting of 30wt% Zn and the balance Cu, but this alloy has the drawbacks of poor corrosion resistance and difficulty in processing into complex shapes. The present invention was made in order to eliminate the above-mentioned drawbacks, and it is a copper-based alloy that has excellent corrosion resistance and workability (cold workability, machinability), and has a golden color. The purpose is to provide alloys. The decorative golden copper alloy according to the present invention is Zn7~
45wt%, Pb0.01~3wt%, precious metals 0.01~2wt%,
It is an alloy with the remainder being Cu. In the decorative golden copper alloy according to the present invention,
The reason for adding Zn is that when Zn is alloyed with Cu, it produces a golden color, and if it is less than 7wt%, the effect is weak, and if it exceeds 45wt%, β phase will appear.
This is because it becomes difficult to process into a thin plate. In addition, the reason for adding Pb is that Pb hardly dissolves in solid solution in Cu, but mostly precipitates in the form of particles at grain boundaries, improving machinability.
If it is less than 3% by weight, the effect will be weak, and if it exceeds 3wt%, the corrosion resistance will decrease. In addition, the reason for adding precious metals is to further improve the corrosion resistance of the Cu-Zn-Pb alloy by adding a small amount of precious metals.If the amount is less than 0.01wt%, the effect will be weak, and if it exceeds 2wt%, there will be no noticeable change. This is because it is no longer visible. What is the precious metal referred to here?
This includes Au, Ag, Pt, Pd, Rh, Ru, Ir, and Os. Examples and conventional examples will be described below in order to clarify the effects of the decorative golden copper alloy according to the present invention. The color, workability (cold workability, cutting), and resistance of the decorative golden-colored copper alloys of Examples 1 to 4 and the decorative golden-colored copper alloys of Conventional Examples 1 and 2 having the composition shown in Table 1. When tested for perspiration, the results shown in Table 2 were obtained.
【表】【table】
【表】【table】
【表】
なお、人工汗試験はNH4Cl15.5ｇ／、
NaCl20ｇ／、酢酸2.5ｇ／、尿素５ｇ／、
乳酸15ｇ／、PH4.7の液組成で液温40℃、240時
間浸漬後判定した。
上記で明らかなように本発明による装飾用黄金
色系銅合金は従来の装飾用黄金色系銅合金に比
し、耐汗性、加工性（冷間加工性、切削性）が優
れ、かつ黄金色を有していることが判る。
以上詳記した通り、本発明の装飾用黄金色系銅
合金は、耐汗性、加工性（冷間加工性、切削性）
が優れかつ黄金色を有しているので、従来の装飾
用黄金色系銅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] For the artificial sweat test, NH 4 Cl15.5g/,
NaCl 20g/, acetic acid 2.5g/, urea 5g/,
Judgment was made after immersion for 240 hours at a liquid temperature of 40°C with a liquid composition of lactic acid 15g/PH4.7. As is clear from the above, the decorative golden-colored copper alloy according to the present invention has superior sweat resistance and workability (cold workability, machinability) compared to conventional decorative golden-colored copper alloys. It can be seen that it has a color. As detailed above, the decorative golden copper alloy of the present invention has sweat resistance and workability (cold workability, machinability).
Because it has excellent copper alloys and a golden color, it can be said to be an epoch-making product that can replace conventional decorative golden-colored copper alloys.
Claims (1)
0.01〜2wt％、残部銅より成る装飾用黄金色系銅
合金。1 Zinc 7-45wt%, lead 0.01-3wt%, precious metals
Decorative golden copper alloy consisting of 0.01~2wt%, balance copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3290284A JPS60177153A (en) | 1984-02-23 | 1984-02-23 | Golden copper alloy for ornamentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3290284A JPS60177153A (en) | 1984-02-23 | 1984-02-23 | Golden copper alloy for ornamentation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60177153A JPS60177153A (en) | 1985-09-11 |
| JPH0332618B2 true JPH0332618B2 (en) | 1991-05-14 |
Family
ID=12371823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3290284A Granted JPS60177153A (en) | 1984-02-23 | 1984-02-23 | Golden copper alloy for ornamentation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60177153A (en) |
-
1984
- 1984-02-23 JP JP3290284A patent/JPS60177153A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60177153A (en) | 1985-09-11 |
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