JPS6022066B2 - Surface treatment method for copper products - Google Patents
Surface treatment method for copper productsInfo
- Publication number
- JPS6022066B2 JPS6022066B2 JP8240578A JP8240578A JPS6022066B2 JP S6022066 B2 JPS6022066 B2 JP S6022066B2 JP 8240578 A JP8240578 A JP 8240578A JP 8240578 A JP8240578 A JP 8240578A JP S6022066 B2 JPS6022066 B2 JP S6022066B2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- steel
- surface treatment
- treatment method
- patina
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 23
- 229910052802 copper Inorganic materials 0.000 title claims description 23
- 239000010949 copper Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 13
- 238000004381 surface treatment Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- NWFNSTOSIVLCJA-UHFFFAOYSA-L copper;diacetate;hydrate Chemical compound O.[Cu+2].CC([O-])=O.CC([O-])=O NWFNSTOSIVLCJA-UHFFFAOYSA-L 0.000 claims description 4
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 claims 1
- 229940112669 cuprous oxide Drugs 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 241001311547 Patina Species 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 206010013911 Dysgeusia Diseases 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/52—Treatment of copper or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】
本発明は、銅製の又は銅メッキ処理の施された素材の銅
表面に緑青層を形成させて、銅表面を保護すると共に、
重厚な極を持たせる、屋根、雨樋、装飾品等の銅製品の
表面処理方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention protects the copper surface by forming a patina layer on the copper surface of a copper or copper-plated material.
The present invention relates to a surface treatment method for copper products such as roofs, rain gutters, decorative items, etc. to give them a heavy pole.
従来は、銅表面に緑青を人工的に発生させることが困難
であるということで、銅製の又は銅〆ッキ処理の施され
た素材の銅表面に、緑青粉を含むクリヤーを直接塗装す
る方法で銅製品の表面処理を行っていた。Conventionally, it was difficult to artificially generate patina on the copper surface, so a method was used in which a clear coating containing patina powder was directly applied to the copper surface of copper or copper-plated materials. surface treatment of copper products.
しかしながら、この方法によって表面処理された銅製品
においては、緑青粉を含むクリヤー層が、その寿命が来
て剥がれると、銅表面（緑青の発生していない銅の素地
）が現われて極めて見苦しいものとなる欠点があった。
本発明の銅製品の表面処理方法は、係る点に鑑みて発明
された方法で、すなわち、銅製の又は銅〆ッキ処理の施
された素材の銅表面に亜酸化鋼皮膜を形成させた後に、
、緑青粉を含むクリヤーを塗装することを特徴とする鋼
製品の表面処理方法で、上記従来の欠点を解消する方法
である。However, in copper products that have been surface-treated using this method, when the clear layer containing patina powder peels off at the end of its life, the copper surface (copper base without patina) appears, which is extremely unsightly. There was a drawback.
The surface treatment method for copper products of the present invention is a method invented in view of the above points, that is, after forming a suboxide steel film on the copper surface of a copper-made or copper-plated material, ,
, is a surface treatment method for steel products characterized by coating with a clear coating containing verdigris powder, and is a method that eliminates the above-mentioned conventional drawbacks.
以下、本発明を実施例に基いて詳細に説明する。銅製の
又は銅〆ッキ処理の施された素材の銅表面を、サンドペ
ーパー等で機械的に又は希塩酸、希硫酸等で化学的に粗
くして（本発明の銅製品の表面処理方法においては、こ
の工程が省略されても差支がない）、硫酸鋼水溶液又は
硫酸銅と食塩との浪合水溶液等を塗布（贋霧又はこの液
に銅表面を浸しても良い）する。この際、素材の銅表面
に亜酸化鋼皮膜が形成され、緑青が発生し易いように活
性化する。その後に、素材の鋼表面の亜酸化鋼皮膜の上
から緑青粉（例えば、粉末状の塩基性硫酸鋼、塩基性炭
酸鋼等）を混合したクリヤー（例えば、アクリル樹脂ク
リヤー、ウレタン樹脂クリヤー、ポリエステル樹脂クリ
ヤー等）を塗装（塗布又は頃霧又はこのクリヤーを溶液
としてこの溶液に浸しても良い）する方法である。この
方法によって表面処理された銅製品においては、緑青粉
を含むクリヤー層が老化して剥がれても、活性化した函
酸化鋼皮膜が現われ、緑青を極めて早く発生して、銅の
素地が現われることなく緑青面になりかわり、鋼製品の
表面は、ほとんど常に緑青層（緑青粉を含むクリヤー層
も含む）によって覆われ保護されることとなって、見苦
しいものともならないものである。なお、本発明の鋼製
品の表面処理方法においては、素材の銅表面に軽酸化鋼
皮膜を形成するに際して、例えば、硫酸鋼、酢酸を王と
する混合水溶液を塗布しても良いが、この混合水溶液を
使用すると、酢酸のために臭気が強く、又亜酸化鋼以外
の不純物をも発生して亜酸化鋼の生成にむらができ、緑
青の発生が不約一になったり、緑青表面が黄色味をおび
たり、又鋼表面と緑青層の密着性が悪く剥離し易い等の
弊害を生じて好ましくはない。Hereinafter, the present invention will be explained in detail based on examples. The copper surface of a copper-made or copper-plated material is roughened mechanically with sandpaper, etc., or chemically with dilute hydrochloric acid, dilute sulfuric acid, etc. (in the surface treatment method for copper products of the present invention, , there is no problem even if this step is omitted), then apply an aqueous solution of steel sulfate or an aqueous solution of copper sulfate and salt (the copper surface may be immersed in a forgery or this solution). At this time, a suboxide steel film is formed on the copper surface of the material and is activated so that patina is likely to occur. After that, a clear (e.g., acrylic resin clear, urethane resin clear, polyester resin clear, etc.) mixed with verdigris powder (e.g., powdered basic sulfate steel, basic carbonate steel, etc.) is applied over the suboxide steel coating on the steel surface of the material. This is a method of painting (coating, spraying, or immersing this clear in a solution). In copper products surface-treated by this method, even if the clear layer containing patina powder ages and peels off, an activated box oxidized steel film appears, patina develops extremely quickly, and the copper base appears. The surface of the steel product is almost always covered and protected by a patina layer (including a clear layer containing verdigris powder) and does not become unsightly. In addition, in the surface treatment method for steel products of the present invention, when forming a lightly oxidized steel film on the copper surface of the material, for example, a mixed aqueous solution containing sulfuric acid steel and acetic acid may be applied. If an aqueous solution is used, the odor is strong due to acetic acid, and impurities other than suboxide steel are generated, resulting in uneven production of suboxide steel, resulting in uneven patina formation and yellowing of the patina surface. This is not preferable because it imparts a bad taste and causes problems such as poor adhesion between the steel surface and the patina layer, making it easy to peel off.
Claims (1)
亜酸化銅皮膜を形成させた後に、緑青粉を含むクリヤー
を塗装することを特徴とする銅製品の表面処理方法。1. A method for surface treatment of copper products, which comprises forming a cuprous oxide film on the copper surface of a copper-made or copper-plated material, and then applying a clear coating containing verdigris powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8240578A JPS6022066B2 (en) | 1978-07-05 | 1978-07-05 | Surface treatment method for copper products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8240578A JPS6022066B2 (en) | 1978-07-05 | 1978-07-05 | Surface treatment method for copper products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS558491A JPS558491A (en) | 1980-01-22 |
| JPS6022066B2 true JPS6022066B2 (en) | 1985-05-30 |
Family
ID=13773674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8240578A Expired JPS6022066B2 (en) | 1978-07-05 | 1978-07-05 | Surface treatment method for copper products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022066B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56129064A (en) * | 1980-03-12 | 1981-10-08 | Takashi Ishikawa | Coating |
| JPS6137975A (en) * | 1984-07-27 | 1986-02-22 | Mitsui Mining & Smelting Co Ltd | Treatment of artificial verdigris |
| JPH0632773B2 (en) * | 1987-07-21 | 1994-05-02 | 高木塗装株式会社 | Production method for patina in solvent coating |
-
1978
- 1978-07-05 JP JP8240578A patent/JPS6022066B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS558491A (en) | 1980-01-22 |
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