JP3343676B2 - Composite coating of plating and fluororesin and method of forming - Google Patents
Composite coating of plating and fluororesin and method of formingInfo
- Publication number
- JP3343676B2 JP3343676B2 JP36630398A JP36630398A JP3343676B2 JP 3343676 B2 JP3343676 B2 JP 3343676B2 JP 36630398 A JP36630398 A JP 36630398A JP 36630398 A JP36630398 A JP 36630398A JP 3343676 B2 JP3343676 B2 JP 3343676B2
- Authority
- JP
- Japan
- Prior art keywords
- plating
- film
- fluororesin
- forming
- 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.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
【0001】[0001]
【発明の属する技術分野】この発明は鍍金とフッ素樹脂
の複合皮膜並びに形成方法に係り、特に鉄鋼類、アルミ
ニウム並びにこれらの合金類の表面に鍍金とフッ素樹脂
塗装層とを剥離しないように形成する方法と剥離しない
複合皮膜に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite film of plating and a fluororesin and a method of forming the same, and more particularly to a method of forming a plating and a fluororesin coating layer on the surface of iron and steel, aluminum and alloys thereof without peeling. The method and the composite coating that does not peel off.
【0002】[0002]
【従来の技術】従来、基材金属として鉄鋼類、アルミニ
ウム類、並びにこれらの合金類に鍍金あるいは塗装皮膜
を生成し、その基材金属に耐食性を付加する、あるいは
皮膜の性能を与えるという方法が知られている。2. Description of the Related Art Conventionally, a method has been known in which plating or a coating film is formed on steels, aluminums, and alloys thereof as a base metal, thereby imparting corrosion resistance to the base metal or imparting the performance of the coating. Are known.
【0003】[0003]
【発明が解決しようとする課題】前記、従来のフッ素樹
脂皮膜は、その樹脂自体の柔らかな特性から、ヒートシ
ーラーなどのような硬度を必要とする箇所では使用する
ことができなかった。この発明は、従来の鍍金やフッ素
樹脂の基材金属に対する密着性や硬度などを分析し、両
者の特性を生かすことによって、フッ素樹脂の有する離
形性などと、鍍金皮膜の有する硬度とを具備する複合皮
膜が良好な効果を上げうることに着眼し、鋭意研究の結
果、この発明を完成した。The above-mentioned conventional fluororesin film cannot be used in places requiring hardness, such as a heat sealer, due to the soft properties of the resin itself. The present invention analyzes the adhesion and hardness of the conventional plating and fluororesin to the base metal, and makes use of the characteristics of both to provide the releasability of the fluororesin and the hardness of the plating film. The inventor of the present invention has completed the present invention as a result of diligent research, focusing on the fact that a composite film having a good effect can be obtained.
【0004】[0004]
【課題を解決するための手段】この発明は、前記課題を
解決し、目的を達成するために次のような技術的な手段
を講じた。The present invention has the following technical means in order to solve the above problems and achieve the object.
【0005】すなわち、鍍金とフッ素樹脂複合皮膜の形
成方法の発明では、基材金属表面に鍍金皮膜を形成する
過程で鍍金皮膜に無数のクラックを形成する工程と、鍍
金皮膜の表面に形成された無数のクラックにフッ素樹脂
を含浸させると共に無数のクラックが形成された鍍金皮
膜の表面を覆うようにフッ素樹脂塗装をする工程と、こ
れを真空炉中で焼成してフッ素樹脂皮膜を鍍金皮膜に一
体に結合させる工程とからなる、という技術的手段を講
じている。また、前記鍍金皮膜は1.5μm〜30μm
の範囲であることが好ましい。 That is, the plating and the shape of the fluororesin composite film
In the invention of the forming method, a plating film is formed on the surface of the base metal.
Forming a myriad of cracks in the plating film in the process,
Fluorine resin to countless cracks formed on the surface of the gold film
Impregnated with innumerable cracks and plated skin
A step of applying a fluororesin coating to cover the surface of the film,
This is fired in a vacuum furnace to convert the fluororesin film into a plating film.
And the process of bonding to the body.
I am The plating film has a thickness of 1.5 μm to 30 μm.
Is preferably within the range.
【0006】前記鍍金の電圧は一般的には2Vである
が、この発明においては、電圧は2Vないし8Vの範囲
で、鍍金時間は5分ないし50分の範囲から鍍金膜厚に
対応して選択調節される。また鍍金の膜厚は1μm以下
ではクラックは生じにくいが、1.5μm〜30μmの
範囲、好ましくは2μm〜10μmの範囲で好ましいク
ラックが得られる。[0006] The plating voltage is generally 2 V, but in the present invention, the voltage is in the range of 2 V to 8 V, and the plating time is selected in the range of 5 to 50 minutes according to the plating film thickness. Adjusted. When the plating thickness is 1 μm or less, cracks are unlikely to occur, but preferred cracks are obtained in the range of 1.5 μm to 30 μm, preferably in the range of 2 μm to 10 μm.
【0007】前記鍍金工程は、電解鍍金により、皮膜素
材がクロム、ニッケル、ニッケル.クロムの中から選択
することができる。[0007] In the plating step, the coating material is made of chromium, nickel, nickel or nickel by electrolytic plating. You can choose from chrome.
【0008】前記フッ素樹脂皮膜形成工程は、粉体塗
装、流動浸漬、スプレー塗装、ディップ塗装の中から選
択することができる。[0008] The fluororesin film forming step can be selected from powder coating, fluid immersion, spray coating, and dip coating.
【0009】前記フッ素樹脂は、PFA、FEP、PT
FEの単体もしくはこれらの複合樹脂の中から選択する
ことができる。The fluororesin is PFA, FEP, PT
It can be selected from FE alone or a composite resin thereof.
【0010】更に、鍍金後の基材金属を加熱してクラッ
クを拡大させる工程を有してもよい。 Further, the base metal after plating is heated to crack.
A step of enlarging the work may be provided.
【0011】また、鍍金とフッ素樹脂複合皮膜の発明で
は、基材金属表面に、無数のクラックを有する膜厚1.
5μm〜30μmの鍍金皮膜が形成されており、上記鍍
金皮膜に生じた無数のクラックにフッ素樹脂を含浸させ
ると共に無数のクラックが形成された鍍金皮膜の表面を
覆うようにフッ素樹脂塗装を行ない、真空炉中で焼成し
てフッ素樹脂皮膜を鍍金皮膜に一体に結合させてなる、
という技術的手段を講じている。 In the invention of plating and a fluororesin composite film,
Has a film thickness of innumerable cracks on the surface of the base metal.
A plating film of 5 μm to 30 μm is formed.
Innumerable cracks in the gold film impregnated with fluororesin
And the surface of the plating film where countless cracks are formed
Fluorine resin coating is applied so as to cover, and baked in a vacuum furnace
By combining the fluororesin film with the plating film
It has taken the technical measures.
【0012】[0012]
【作用】上記のように構成されたこの発明は、次のよう
な作用を有している。The present invention configured as described above has the following operation.
【0013】高電圧で膜厚を厚く鍍金することによっ
て、鍍金皮膜に無数のクラックが生じる。鍍金後に空焼
きなどの加熱をすると、クラックは拡大される。[0013] By plating with a high voltage and a large thickness, countless cracks occur in the plating film. If heating such as empty baking after plating, the cracks are enlarged.
【0014】基材金属表面にフッ素樹脂塗装をすると、
フッ素樹脂がクラック内に浸入して、真空炉中での焼成
によって樹脂がクラックの底に確実に浸入して硬化し、
鍍金と一体に結合する。When a fluororesin coating is applied to the base metal surface,
Fluororesin penetrates into cracks, and baking in a vacuum furnace ensures that resin penetrates into the crack bottoms and hardens,
Combined with plating.
【0015】鍍金皮膜が表出しない状態では、クラック
内に入っている樹脂がアンカとなってフッ素樹脂皮膜は
剥離しにくくなる。When the plating film is not exposed, the resin contained in the cracks serves as an anchor, and the fluororesin film is not easily peeled off.
【0016】鍍金皮膜が表出するよう表面処理をする
と、クラック部分においてフッ素樹脂皮膜が散在状に鍍
金皮膜と共存する複合皮膜となる。When the surface treatment is performed so that the plated film is exposed, a fluororesin film is scatteredly formed in the crack portion to form a composite film coexisting with the plated film.
【0017】[0017]
【発明の実施の形態】この発明の実施の形態例を図面を
参照して説明する。図1は鉄のテストピースの縦断面図
である。基材金属として鉄のテストピース(100mm
×50mm×1.5mm)1をトリクレンにて脱脂し、
ストライクCu、ピロリン酸Cu、ニッケルなどの前処
理を施した後、クロム鍍金をクラック3が入る程度の膜
厚(電圧と鍍金時間にて調節、例えば 1.5μm〜3
0μm)で鍍金して鍍金皮膜2を形成し、その過程で鍍
金被膜2に無数のクラック3…を形成させた。鍍金膜厚
は1.5μmないし10μmで十分なクラック3…が生
じた。これ以上の膜厚にすると、クラックが小さくなる
傾向になる。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of an iron test piece. Iron test piece (100mm
× 50mm × 1.5mm) 1 was degreased with Triclean,
After pre-treatment of strike Cu, Cu pyrophosphate, nickel, etc., the chrome plating is adjusted to a thickness enough to cause cracks 3 (adjusted by voltage and plating time, for example, 1.5 μm to 3 μm).
0 μm) to form a plating film 2, and in the process, countless cracks 3 were formed in the plating film 2. When the plating film thickness was 1.5 μm to 10 μm, sufficient cracks 3 occurred. If the thickness is more than this, cracks tend to be small.
【0018】前記鍍金に使用した電圧は4V〜8Vの範
囲、好ましくは6V前後で、鍍金の時間は5分ないし2
5分、好ましくは10分ないし25分前後で行うと好ま
しいクラック3…が生じた。電圧を上げると鍍金時間を
短縮させることができるが、鍍金膜厚との関係で電圧と
鍍金時間とを適宜調節する。The voltage used for the plating ranges from 4 V to 8 V, preferably around 6 V, and the plating time is 5 minutes to 2 minutes.
After 5 minutes, preferably about 10 to 25 minutes, the preferred cracks 3 were formed. The plating time can be shortened by increasing the voltage, but the voltage and the plating time are appropriately adjusted in relation to the plating film thickness.
【0019】その後、このテストピース1を約300℃
で20分間空焼きして鍍金皮膜2表面に形成されている
無数のクラック3…を拡大させた。これは必要に応じて
することができ、温度、時間を適宜選択する。この状況
を図2に示す。白い部分がクラック3…である。Thereafter, the test piece 1 is heated to about 300 ° C.
By baking for 20 minutes, the countless cracks 3 formed on the surface of the plating film 2 were enlarged. This can be done as needed, and the temperature and time are appropriately selected. This situation is shown in FIG. The white part is crack 3.
【0020】このクラック3…の生じた鍍金皮膜2のク
ラック3…表面にPFAを約10μmないし必要の層厚
に塗布した後、公知の真空炉中において、約380℃で
30分前後焼成した。After applying PFA to a thickness of about 10 μm or a required thickness on the surface of the plating film 2 on which the cracks 3 were formed, the resultant was baked at about 380 ° C. for about 30 minutes in a known vacuum furnace.
【0021】このテストピース1を用いて、鉛筆硬度試
験、塩水噴霧試験、接触角試験、90度曲げ試験を行っ
たところ、表1に示す結果が得られた。Using this test piece 1, a pencil hardness test, a salt spray test, a contact angle test, and a 90-degree bending test were performed. The results shown in Table 1 were obtained.
【0022】[0022]
【表1】 [Table 1]
【0023】上記の構成によって、鉄、銅、アルミニウ
ム、ステンレスなどの基材金属に鍍金とフッ素樹脂塗装
膜の複合皮膜を形成したことによって、フッ素樹脂部分
による離形性に優れ、鍍金部分による硬度に優れた皮膜
が形成された。これにより、例えば電子器機のロールの
耐摩耗や、軸受け、鋳型、ヒートシーラーなど広範囲な
分野に利用することができる。With the above configuration, a composite film of plating and a fluororesin coating film is formed on a base metal such as iron, copper, aluminum, and stainless steel, so that the releasability of the fluororesin portion is excellent and the hardness of the plating portion is high. An excellent film was formed. Thereby, it can be used in a wide range of fields such as abrasion resistance of a roll of an electronic device, a bearing, a mold, and a heat sealer.
【0024】なおこの発明は前記形態例に限定されるも
のではなく、目的に沿うよう適宜設計変更をすることが
できる。It should be noted that the present invention is not limited to the above-described embodiment, and the design can be appropriately changed to meet the purpose.
【0025】[0025]
【発明の効果】上記のように構成されたこの発明は、次
のような優れた効果がある。The present invention configured as described above has the following excellent effects.
【0026】この発明は、鍍金過程で鍍金皮膜にクラッ
クを生じさせて、クラック表面にフッ素樹脂の皮膜を形
成した複合皮膜であるので、鍍金とフッ素樹脂皮膜が面
方向でそれぞれの特性を出しあうために、硬度と離形性
に優れた性能を兼備えている効果がある。The present invention is a composite film in which a crack is formed in a plating film in a plating process and a fluororesin film is formed on the crack surface. Therefore, the plating and the fluororesin film exhibit respective characteristics in a plane direction. For this reason, there is an effect of having both performances excellent in hardness and releasability.
【0027】鍍金皮膜とフッ素樹脂皮膜が混在した複合
皮膜なので、基材金属に対して、それぞれが接着能を補
い合い接着性にすぐれ剥離しにくい効果がある。Since it is a composite film in which a plating film and a fluororesin film are mixed, each has an effect of complementing the bonding ability to the base metal and having excellent adhesiveness, and is hardly peeled off.
【0028】硬度と離形性を兼備しているので、硬度と
離形性を要求される耐摩耗性ロール、軸受け、鋳型やヒ
ートシーラーなど広範囲な分野に利用することができる
効果がある。Since it has both hardness and releasability, it has the effect that it can be used in a wide range of fields such as abrasion-resistant rolls, bearings, molds and heat sealers which require hardness and releasability.
【0029】基礎的なクラックは鍍金の過程で形成する
ので、特別な工程を必要としない効果がある。Since the basic cracks are formed in the plating process, there is an effect that no special process is required.
【図1】 鍍金皮膜のクラックを示す縦断正面図であ
る。FIG. 1 is a vertical sectional front view showing cracks in a plating film.
【図2】 鍍金皮膜のクラックを示す平面図である。FIG. 2 is a plan view showing cracks in a plating film.
1 基材金属 2 鍍金皮膜 3 クラック 4 フッ素樹脂皮膜 1 Base metal 2 Plating film 3 Crack 4 Fluororesin film
フロントページの続き (58)調査した分野(Int.Cl.7,DB名) C23F 15/00 B32B 15/08 102 C09D 127/12 Continuation of the front page (58) Field surveyed (Int. Cl. 7 , DB name) C23F 15/00 B32B 15/08 102 C09D 127/12
Claims (8)
で鍍金皮膜に無数のクラックを形成する工程と、鍍金皮膜の表面に形成された無数のクラックにフッ素樹
脂を含浸させると共に無数のクラックが形成された鍍金
皮膜の表面を覆うようにフッ素樹脂塗装をする 工程と、 これを真空炉中で焼成してフッ素樹脂皮膜を鍍金皮膜に
一体に結合させる工程とからなることを特徴とする鍍金
とフッ素樹脂複合皮膜の形成方法。1. A step of forming an infinite number of cracks in a plating film in a process of forming a plating film on a surface of a base metal, and a step of forming an infinite number of cracks formed on the surface of the plating film by a fluorine resin.
Plated with impregnated fat and countless cracks
A step of coating the fluororesin so as to cover the surface of the film, and firing this in a vacuum furnace to convert the fluororesin film into a plating film
A method of forming plating and a fluororesin composite film, comprising a step of integrally bonding .
範囲であることを特徴とする請求項1に記載された鍍金
とフッ素樹脂複合被膜の形成方法。2. The method according to claim 1, wherein the thickness of the plating film is in a range of 1.5 μm to 30 μm.
素材がクロム、ニッケル、ニッケル.クロムの中から選
択されることを特徴とする請求項1または2のいずれか
に記載された鍍金とフッ素樹脂複合皮膜の形成方法。3. The plating step, wherein the coating material is made of chromium, nickel, nickel or nickel by electrolytic plating. 3. The method according to claim 1, wherein the coating is selected from chromium.
銅、それらの合金の中から選択される一つであることを
特徴とする請求項1または2のいずれかに記載された鍍
金とフッ素樹脂複合皮膜の形成方法。4. The method according to claim 1, wherein the base metal is iron, aluminum,
3. The method for forming a plating and fluororesin composite film according to claim 1, wherein the method is one selected from copper and alloys thereof.
装、流動浸漬、スプレー塗装、ディップ塗装の中から選
択されることを特徴とする請求項1ないし4のいずれか
に記載された鍍金とフッ素樹脂複合皮膜の形成方法。5. The plating method according to claim 1, wherein the fluororesin film forming step is selected from powder coating, fluid immersion, spray coating, and dip coating. A method for forming a fluororesin composite film.
TFEの単体もしくはこれらの複合樹脂の中から選択さ
れることを特徴とする請求項1ないし4のいずれかに記
載された鍍金とフッ素樹脂複合皮膜の形成方法。6. The fluororesin is PFA, FEP, P
The method for forming a plating and fluororesin composite film according to any one of claims 1 to 4, wherein the method is selected from a simple substance of TFE or a composite resin thereof.
拡大させる工程を有していることを特徴とする請求項1
または2に記載の鍍金とフッ素樹脂複合皮膜の形成方
法。 7. Heating the plated base metal to crack it
2. The method according to claim 1, further comprising the step of enlarging.
Or the method of forming the fluororesin composite film described in 2 above
Law.
る膜厚1.5μm〜30μmの鍍金皮膜が形成されてお
り、上記鍍金皮膜に生じた無数のクラックにフッ素樹脂を含
浸させると共に無数のクラックが形成された鍍金皮膜の
表面を覆うようにフッ素樹脂塗装を行ない、 真空炉中で
焼成してフッ素樹脂皮膜を鍍金皮膜に一体に結合させて
なることを特徴とする鍍金とフッ素樹脂複合皮膜。8. The substrate metal surface has countless cracks.
Plated film having a thickness 1.5μm~30μm is formed, a fluororesin countless cracks occurring in the plating film containing that
Immersion and plating film with countless cracks formed
A plating and fluororesin composite film characterized by being coated with a fluororesin coating so as to cover the surface and firing in a vacuum furnace to integrally bond the fluororesin film to the plating film.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36630398A JP3343676B2 (en) | 1998-12-24 | 1998-12-24 | Composite coating of plating and fluororesin and method of forming |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36630398A JP3343676B2 (en) | 1998-12-24 | 1998-12-24 | Composite coating of plating and fluororesin and method of forming |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000192268A JP2000192268A (en) | 2000-07-11 |
JP3343676B2 true JP3343676B2 (en) | 2002-11-11 |
Family
ID=18486446
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JP36630398A Expired - Fee Related JP3343676B2 (en) | 1998-12-24 | 1998-12-24 | Composite coating of plating and fluororesin and method of forming |
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JP (1) | JP3343676B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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GB2455359B (en) * | 2007-12-07 | 2011-09-07 | Mohammed Nazim Khan | Ni-PTFE composite coatings with sprayed PTFE |
KR101301575B1 (en) * | 2011-10-17 | 2013-09-24 | 주식회사 코텍 | A Surface having a high corrosion resistance and method for forming thereof |
-
1998
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Also Published As
Publication number | Publication date |
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JP2000192268A (en) | 2000-07-11 |
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