JPH0483559A - Surface treatment of metal faucet - Google Patents
Surface treatment of metal faucetInfo
- Publication number
- JPH0483559A JPH0483559A JP20087890A JP20087890A JPH0483559A JP H0483559 A JPH0483559 A JP H0483559A JP 20087890 A JP20087890 A JP 20087890A JP 20087890 A JP20087890 A JP 20087890A JP H0483559 A JPH0483559 A JP H0483559A
- Authority
- JP
- Japan
- Prior art keywords
- faucet
- plating
- layer
- plating layer
- clear coating
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 7
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 238000004381 surface treatment Methods 0.000 title claims description 4
- 238000007747 plating Methods 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 23
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000011282 treatment Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 16
- 239000011347 resin Substances 0.000 abstract description 11
- 229920005989 resin Polymers 0.000 abstract description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 229910052804 chromium Inorganic materials 0.000 abstract description 6
- 239000011651 chromium Substances 0.000 abstract description 6
- 239000000839 emulsion Substances 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 3
- 229910001369 Brass Inorganic materials 0.000 abstract description 2
- 229910000906 Bronze Inorganic materials 0.000 abstract description 2
- 239000010951 brass Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 24
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- 239000003973 paint Substances 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- DQIPXGFHRRCVHY-UHFFFAOYSA-N chromium zinc Chemical compound [Cr].[Zn] DQIPXGFHRRCVHY-UHFFFAOYSA-N 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- CLDVQCMGOSGNIW-UHFFFAOYSA-N nickel tin Chemical compound [Ni].[Sn] CLDVQCMGOSGNIW-UHFFFAOYSA-N 0.000 description 1
- 208000014451 palmoplantar keratoderma and congenital alopecia 2 Diseases 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、水栓金具表面に艶消しメタリック調表面を形
成する水栓金具の表面処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for surface treatment of faucet fittings, which forms a matte metallic surface on the surface of the faucet fittings.
従来から、水栓金具はその用途面から薬品に対する耐食
性を付与するため、ニッケルめっき、クロムめっき、銅
めっき等のめっき処理が施されていた。Conventionally, faucet fittings have been subjected to plating treatments such as nickel plating, chromium plating, copper plating, etc. in order to impart corrosion resistance against chemicals for their intended use.
さらに、近年多様化するユーザーの趣向と取扱い上の手
滑りを防止するために種々の表面処理法が適用されるよ
うになり、例えば、特公昭６２−４６６３９号公報には
ニッケル表面にエマルジョン粒子の付着跡を積極的に残
した後、本体表面にクロム島つきを施すことが開示され
ている。Furthermore, in recent years, various surface treatment methods have been applied to meet the diversifying user tastes and to prevent hand slippage during handling. It is disclosed that after positively leaving an adhesion mark, a chrome plate is applied to the surface of the main body.
さらに、水栓金具表面がめつきのみであると変色したり
、表面の光沢が失われ易く、その上、被膜自体が軟らか
く耐摩耗性に乏しいために疵がつきやすいので、洗浄或
いは乾燥後、透明塗装等の特殊な処理を行ったものとし
て、例えば、特開平２−１１８０９０号公報には、ニッ
ケルめっき液に有機系エマルジョンを添加して表面に微
細な凹凸を形成した後、１０〜２０μｍ厚の樹脂層を形
成することが開示されている。Furthermore, if the surface of the faucet fittings is only plated, it is likely to discolor or lose its luster.Furthermore, the film itself is soft and has poor abrasion resistance, so it is prone to scratches, so it cannot be transparent after cleaning or drying. For example, in Japanese Patent Application Laid-Open No. 2-118090, a special treatment such as painting is described, after adding an organic emulsion to a nickel plating solution to form fine irregularities on the surface, Forming a resin layer is disclosed.
しかしながら、めっき層を露出したものでは塩酸等の薬
品に侵され易く、また、表面に樹脂層を形成したものに
おいては耐薬品性についての改善の効果は期待てきても
、頻繁な操作によって熱湯が当たった場合樹脂塗膜が剥
がれ易く、また耐摩耗性に劣り、さらには鋳造品下地に
ピンホールが存在する場合には局部腐蝕を防止すること
ができず、耐食性、耐薬品性に劣るという欠点がある。However, those with an exposed plating layer are easily attacked by chemicals such as hydrochloric acid, and those with a resin layer formed on the surface may be expected to improve chemical resistance, but may be exposed to boiling water due to frequent operations. Disadvantages include that the resin coating easily peels off when hit, and has poor abrasion resistance.Furthermore, if there are pinholes in the base of the cast product, local corrosion cannot be prevented, resulting in poor corrosion and chemical resistance. There is.
さらに、その装飾性からは今一つ色調の深みが不足し、
充分にニーズに応えられないという欠点があった。Furthermore, the depth of color tone is lacking due to its decorative nature.
The drawback was that it could not fully meet needs.
本発明において解決すべき課題は、上記従来の表面処理
した水栓金具、とくに、めっき層上に樹脂塗膜を施した
水栓金具の欠点を解消することにあって、めっき層との
密着性が強固であり、また、色調においても従来の水栓
金具には見られない艶消し色調を有し、且つ、深みのあ
る透明感を伴うメタリック調表面を有する水栓金具を提
供するものである。The problem to be solved by the present invention is to eliminate the drawbacks of the above-mentioned conventional surface-treated faucet fittings, especially faucet fittings in which a resin coating is applied on the plating layer. To provide a faucet fitting that is strong, has a matte color tone not seen in conventional faucet fittings, and has a metallic surface with deep transparency. .
本発明は、成゛形金属基体表面に艶消しめっき層を形成
した後、同めっき層上にクロメート処理を行った後、３
５〜１５０μｍ厚のクリア塗膜を粉体塗装によって施す
ことを特徴とする。In the present invention, after forming a matte plating layer on the surface of a shaped metal substrate, and after performing chromate treatment on the same plating layer,
It is characterized by applying a clear coating film with a thickness of 5 to 150 μm by powder coating.
めっき層としては、要求する色調に応じて種々の金属２
合金の単層１ 複層めっきを適用することができる。As a plating layer, various metals 2 can be used depending on the desired color tone.
Single layer 1 multi-layer plating of alloy can be applied.
めっき層表面を艶消しする手段として、単層めっきの場
合にはめっき洛中にエマルジョン粒子を分散させる方法
、８１０２等の微粒子をニッケルめっき液中に分散させ
る方法、ショツトブラスト法等を適用することができる
。As a means of matting the surface of the plating layer, in the case of single-layer plating, methods such as dispersing emulsion particles in the plating layer, dispersing fine particles such as 8102 in the nickel plating solution, and shot blasting can be applied. can.
また、複層めっきの場合はニッケル層の上に、クロムめ
っき、あるいは錫・ニッケルの合金めっき層等を形成す
ることも可能である。Furthermore, in the case of multilayer plating, it is also possible to form a chromium plating layer, a tin-nickel alloy plating layer, etc. on the nickel layer.
クリア塗装に用いる塗料としては、耐食性、耐摩耗性と
いう物性上の点から、ポリエステル、ウレタン、アクリ
ルベースのものが適している。From the viewpoint of physical properties such as corrosion resistance and abrasion resistance, paints based on polyester, urethane, and acrylic are suitable for use in clear coating.
艶消しめっきを施した水栓金具表面のめっき上にクロメ
ート被膜を形成することにより、このクロメート被膜が
多孔性であるために、樹脂との密着性が向上し、卓越し
た耐食性を付与することが可能となった。By forming a chromate film on the matte-plated surface of faucet fittings, this chromate film is porous, which improves adhesion with resin and provides excellent corrosion resistance. It has become possible.
従来よりめっき上に行うクロメート処理はあり、これは
、亜鉛めっきが酸やアルカリに侵され易いため、亜鉛め
っき上に亜鉛クロム液の被膜を生成密着させることであ
るが、本発明のように水栓金具のめっき上にクロメート
処理を施し、塗膜との密着性を向上させるものはなかっ
た。Conventionally, chromate treatment has been performed on plating, and since zinc plating is easily attacked by acids and alkalis, this involves creating a film of zinc chromium solution on the zinc plating to make it adhere, but as in the present invention, chromate treatment is performed on plating. There has been no chromate treatment on the plating of the stopper to improve adhesion to the paint film.
また、クリア塗膜の厚みは３５μｍより薄いと、水栓金
具表面のクリア塗膜の膨潤や剥がれが生じやすく、また
、逆に１５０μｍより厚いと塗装時、塗料のだれが生じ
外観上の問題を招き、経済性も劣る。したがって、その
厚みは３５〜１５０μｍ１とくに５０〜８０μｍである
ことが好ましい。In addition, if the clear coating film is thinner than 35 μm, the clear coating film on the surface of the faucet fittings is likely to swell or peel off, while if it is thicker than 150 μm, the paint will sag during painting, causing problems in appearance. It is less inviting and less economical. Therefore, the thickness is preferably 35 to 150 μm, particularly 50 to 80 μm.
黄銅或いは青銅の銅合金製鋳物からなる水栓金具をアル
カリ洗浄及び酸洗浄で予備処理した後、エマルジョンを
分散させたニッケルメッキ洛中で５０℃、 ５Ａ／ｄｍ
’で５μｍ厚にニッケルめっきを施し、さらに、その上
にクロムめっき浴を用いて５０℃２ＯＡ／ｃ１ｍ２ で
０．１μｍ厚にクロムめっきを行う。さらに、クロムめ
っき層上にクリア塗膜との密着性を強固にするため、０
．５Ａ／ｄ＋ｎ’、 １ｍ１ｎの電解クロメート処理を
施した後、クリア塗料で粉体塗装を行い、２００℃、
２０ｍ１ｎの加熱乾燥の条件下で焼付けして５０μｍ厚
の強固な透明層を形成した。Faucet fittings made of copper alloy castings of brass or bronze are pretreated with alkaline cleaning and acid cleaning, and then heated at 50°C and 5A/d in a nickel plating plate in which emulsion is dispersed.
Nickel plating is applied to a thickness of 5 μm using a chromium plating bath, and then chromium plating is applied to a thickness of 0.1 μm at 50°C at 2OA/c1m2. Furthermore, in order to strengthen the adhesion with the clear coating film on the chrome plating layer,
．． After electrolytic chromate treatment of 5A/d+n', 1m1n, powder coating with clear paint, 200℃,
A strong transparent layer with a thickness of 50 μm was formed by baking under conditions of heating and drying at 20 ml.
得られた水栓金具は、耐食性がキャス試験（ＪＩ Ｓ
Ｈ８５０２） の４８時間連続噴霧条件下でＲ，Ｎ
（レイティング・ナンバ）９．８以上、耐薬品性が５％
のＨＣｆ或いはＮａＯＨの１２０時間浸漬で異常（膨潤
、剥がれ等）は認められず、且つ、湿式条件下で加熱・
冷却衝撃試験に対してもクリア塗膜のふくれ、剥がれ等
が生じないという特性を備えている。The corrosion resistance of the faucet fittings obtained was determined by the CASS test (JIS
H8502) under continuous spraying conditions for 48 hours.
(Rating number) 9.8 or higher, chemical resistance 5%
No abnormalities (swelling, peeling, etc.) were observed after immersion in HCf or NaOH for 120 hours, and no abnormalities (swelling, peeling, etc.) were observed under wet conditions.
It also has the characteristic that the clear coating film does not blister or peel during the cooling shock test.
次に、比較のために上記実施例においてクロメート処理
を施さないものを作成した。Next, for comparison, a sample without chromate treatment was prepared in the above example.
これらの密着性試験結果を第１表に比較して示す。比較
例の場合、めっき層と樹脂層との密着性が悪く、長年の
使用により、表面の樹脂層の膨潤や剥がれが生じた。The results of these adhesion tests are shown in Table 1 for comparison. In the case of the comparative example, the adhesion between the plating layer and the resin layer was poor, and the surface resin layer swelled and peeled off after many years of use.
（以下、この頁余白）
第１表
第１図に上記実施例に示す水栓金具のＪＩＳＫ ７２０
４ 摩耗輪によるプラスチックの摩耗試験方法の試験
結果を示す。(Hereinafter, this page margin) JISK 720 of the faucet fittings shown in the above example in Table 1, Figure 1
4 The test results of the plastic wear test method using a wear wheel are shown.
同図に示すように、表面のクリア塗膜が薄いよりも厚い
方が強度が大であり、さらに、全体が独特の曲面を有す
る水栓金具の表面に形成されたクリア塗膜を通して光が
下地の艶消しめっきを微妙に乱反射して、深みのある表
面色調が得られる。As shown in the figure, the strength is higher when the clear coating on the surface is thicker than when it is thinner, and furthermore, the light passes through the clear coating formed on the surface of the faucet fitting, which has a unique curved surface, and reflects the light on the base. The matte plating is subtly diffused, creating a deep surface color.
しかも、クリア塗膜を厚く形成することによってクリア
塗膜自体による、耐食性、耐薬品性、耐摩耗性、耐温水
性、耐衝撃性等の保護性が増大する。Moreover, by forming a thick clear coating film, the protective properties of the clear coating film itself, such as corrosion resistance, chemical resistance, abrasion resistance, hot water resistance, and impact resistance, are increased.
同図にメタリック塗装の摩耗試験結果を示す。The figure shows the abrasion test results for metallic paint.
この図からも判る通り、メタリック塗装を施した水栓と
、本発明の水栓の摩耗強度とを比較した場合、本発明の
水栓の方がはるかに強い摩耗強度を示すことが判る。As can be seen from this figure, when comparing the abrasion strength of the faucet with metallic coating and the faucet of the present invention, it can be seen that the faucet of the present invention exhibits much stronger abrasion strength.
本発明によって、以下の効果を奏することができる。 The present invention can provide the following effects.
（１） クリア塗膜の下にクロメート被膜が存在する
ので、めっき層と樹脂層との密着性が大であり、耐食性
、耐摩耗性に優れている。(1) Since the chromate film is present under the clear coating film, the adhesion between the plating layer and the resin layer is high, resulting in excellent corrosion resistance and abrasion resistance.
（２）水栓本体にピンホール等の欠陥があった場合でも
、クリア塗膜が厚いために、欠陥部分を覆うことが可能
であり、また、表面の樹脂層の下部にめっき層が存在す
るので、両者の複合作用により耐食性１耐薬品性に優れ
ている。(2) Even if there is a defect such as a pinhole on the faucet body, the clear coating is thick, so it is possible to cover the defective part, and there is a plating layer below the resin layer on the surface. Therefore, due to the combined effect of both, it has excellent corrosion resistance and chemical resistance.
（３）製品表面は樹脂層で下部にｔつき層が存在するの
で、光の乱反射により外観も深みが増し、温かみのある
色感が得られる。(3) Since the surface of the product is a resin layer and there is a T-shaped layer at the bottom, the appearance becomes deeper due to the diffused reflection of light, and a warm color feeling is obtained.
（４） めっきの種類を変化させることによって、メ
タリック感を有する製品のバリエーションが増加する。(4) By changing the type of plating, the variety of products with a metallic feel increases.
第１図はＪ Ｉ Ｓ Ｋ７２０４摩耗輪によるプラス
チックの摩耗試験結果を示す図である。
第 １ 図FIG. 1 is a diagram showing the results of a plastic wear test using a JIS K7204 wear wheel. Figure 1
Claims (1)
っき層上にクロメート処理を行った後、３５〜１５０μ
ｍ厚のクリア塗膜を粉体塗装によって施す水栓金具の表
面処理方法。1. After forming a matte plating layer on the surface of the molded metal substrate and performing chromate treatment on the same plating layer, 35 to 150μ
A surface treatment method for faucet fittings in which a m-thick clear coating is applied by powder coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20087890A JPH0483559A (en) | 1990-07-26 | 1990-07-26 | Surface treatment of metal faucet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20087890A JPH0483559A (en) | 1990-07-26 | 1990-07-26 | Surface treatment of metal faucet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0483559A true JPH0483559A (en) | 1992-03-17 |
Family
ID=16431745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20087890A Pending JPH0483559A (en) | 1990-07-26 | 1990-07-26 | Surface treatment of metal faucet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0483559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002146558A (en) * | 2000-11-14 | 2002-05-22 | Toto Ltd | Mark display method and product |
-
1990
- 1990-07-26 JP JP20087890A patent/JPH0483559A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002146558A (en) * | 2000-11-14 | 2002-05-22 | Toto Ltd | Mark display method and product |
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