JPH0368092B2 - - Google Patents
Info
- Publication number
- JPH0368092B2 JPH0368092B2 JP59032897A JP3289784A JPH0368092B2 JP H0368092 B2 JPH0368092 B2 JP H0368092B2 JP 59032897 A JP59032897 A JP 59032897A JP 3289784 A JP3289784 A JP 3289784A JP H0368092 B2 JPH0368092 B2 JP H0368092B2
- Authority
- JP
- Japan
- Prior art keywords
- golden
- decorative
- alloy
- present
- copper alloy
- 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 - Lifetime
Links
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 11
- 241000784726 Lycaena thetis Species 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000010970 precious metal Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000000956 alloy Substances 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 210000004243 sweat Anatomy 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017767 Cu—Al 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
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 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
- 229910052697 platinum Inorganic materials 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
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Adornments (AREA)
- Preventing Corrosion Or Incrustation Of Metals (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Al2.5〜
10wt％、貴金属1.1〜1.8wt％、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、
Alを添加した理由は、AlはCuと合金を作つた際
に表面に安定な酸化被膜を作り、耐食性を向上す
ると共に、黄金色の合金が得られる為であり、
2.5wt％未満ではその効果が薄く、10wt％を超え
ると金属間化合物を作り、薄板に加工することが
困難になる為である。
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−Al合金の耐食性をさらに向上さ
せる為であり、1.1wt％未満ではその効果が薄く、
1.8wt％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１〜３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、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 aims to provide a decorative golden-colored copper alloy that is a copper-based alloy and has excellent corrosion resistance and workability, and has a golden color. . The decorative golden copper alloy according to the present invention has Al2.5~
It is an alloy consisting of 10wt%, precious metals 1.1 to 1.8wt%, and the balance Cu. In the decorative golden copper alloy according to the present invention,
The reason for adding Al is that when Al forms an alloy with Cu, it forms a stable oxide film on the surface, improving corrosion resistance and producing a golden-colored alloy.
This is because if the content is less than 2.5wt%, the effect will be weak, and if it exceeds 10wt%, intermetallic compounds will be formed, making it difficult to process into a thin plate. In addition, the reason for adding precious metals is to further improve the corrosion resistance of the Cu-Al alloy by adding a small amount of precious metals, and if it is less than 1.1wt%, the effect will be weak.
This is because even if the content exceeds 1.8wt%, no significant changes are observed. The precious metals mentioned here are Au,
This includes 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, and sweat resistance of the decorative golden-colored copper alloys of Examples 1 to 3 and the conventional examples 1 and 2 of the compositions shown in Table 1 were tested. The results shown in the table were obtained.
【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 processability, and has a golden color, compared to conventional decorative golden-colored copper alloys. . As detailed above, the decorative golden-colored copper alloy of the present invention has excellent sweat resistance, workability, and has a golden color, so it can be used to replace conventional decorative golden-colored copper alloys. It can be said that it is a groundbreaking thing that can be done.
Claims (1)
1.8wt％、残部Cuより成る装飾用黄金色系銅合
金。1 Aluminum 2.5~10wt%, precious metals 1.1~
Decorative golden copper alloy consisting of 1.8wt%, balance Cu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3289784A JPS60177146A (en) | 1984-02-23 | 1984-02-23 | Golden copper alloy for ornamentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3289784A JPS60177146A (en) | 1984-02-23 | 1984-02-23 | Golden copper alloy for ornamentation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60177146A JPS60177146A (en) | 1985-09-11 |
| JPH0368092B2 true JPH0368092B2 (en) | 1991-10-25 |
Family
ID=12371681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3289784A Granted JPS60177146A (en) | 1984-02-23 | 1984-02-23 | Golden copper alloy for ornamentation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60177146A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20050291A1 (en) * | 2005-10-10 | 2007-04-11 | Silmar Spa | LEAGUE FOR ORNAMENTAL ITEMS |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5760043A (en) * | 1980-09-30 | 1982-04-10 | Furukawa Electric Co Ltd:The | Electrically conductive copper alloy with corrosion and heat resistance |
| JPS5770244A (en) * | 1980-10-15 | 1982-04-30 | Furukawa Electric Co Ltd:The | Heat-resistant and anticorrosive copper alloy for electric conduction |
| JPS57192239A (en) * | 1981-05-22 | 1982-11-26 | Furukawa Electric Co Ltd:The | Copper alloy useful as fin for car radiator |
-
1984
- 1984-02-23 JP JP3289784A patent/JPS60177146A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5760043A (en) * | 1980-09-30 | 1982-04-10 | Furukawa Electric Co Ltd:The | Electrically conductive copper alloy with corrosion and heat resistance |
| JPS5770244A (en) * | 1980-10-15 | 1982-04-30 | Furukawa Electric Co Ltd:The | Heat-resistant and anticorrosive copper alloy for electric conduction |
| JPS57192239A (en) * | 1981-05-22 | 1982-11-26 | Furukawa Electric Co Ltd:The | Copper alloy useful as fin for car radiator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60177146A (en) | 1985-09-11 |
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