JPH1058595A - Method for forming fluororesin coat - Google Patents
Method for forming fluororesin coatInfo
- Publication number
- JPH1058595A JPH1058595A JP23263996A JP23263996A JPH1058595A JP H1058595 A JPH1058595 A JP H1058595A JP 23263996 A JP23263996 A JP 23263996A JP 23263996 A JP23263996 A JP 23263996A JP H1058595 A JPH1058595 A JP H1058595A
- Authority
- JP
- Japan
- Prior art keywords
- fluororesin
- metal surface
- forming
- laser
- film
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は弗素樹脂皮膜の形
成方法に係り、特に金属表面に公害問題にかかわりなく
良好な弗素樹脂皮膜を形成する弗素樹脂皮膜の形成方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a fluororesin film, and more particularly to a method for forming a good fluororesin film on a metal surface irrespective of pollution problems.
【０００２】[0002]
【従来の技術】従来、金属表面に弗素樹脂の塗膜を形成
する方法として、金属表面をあらかじめブラスト方法に
よって粗面化しておく方法が採られている。又金属がア
ルミニューム系の場合、塩酸によるエッチング又はＣｕ
ｓｏ4水溶液、塩化第一鉄水溶液によるエッチング式は
Ｎａｃｌ水溶液による電解などの方法が採られている。
或いはアルミニュームを陽極酸化し、この表面に溶融型
弗素樹脂を塗布し高温（３８０〜４００°Ｃ）で焼成す
ることにより陽極酸化膜にクラックを生じさせ、この中
に熔融弗素樹脂を入り込ませ、接着を強化する方法もあ
る。金属が鉄、ステンレスの場合は一般的に塩化第一鉄
水溶液処理によって粗面を形成するが、ブラスト法によ
ることが多い。ブラスト法による表面粗面処理は、金属
表面を研削によって粗面の山と谷とを形成するため、山
の高さと谷の深さはばらつきを生ずるため、薄い塗膜を
形成する場合、ブラストを細かにするため塗膜の密着に
影響するか、塗面の表面の平滑度を損なうこともある。
エッチングでも或る程度の条件で行うとエッチングによ
る孔は金属表面の研削と異なり金属表面が***すること
がないので塗布膜は平滑となる。2. Description of the Related Art Conventionally, as a method of forming a coating film of a fluororesin on a metal surface, a method of previously roughening the metal surface by a blast method has been adopted. If the metal is aluminum, etching with hydrochloric acid or Cu
The etching method using an aqueous solution of so 4 and an aqueous solution of ferrous chloride employs a method such as electrolysis using an aqueous solution of NaCl.
Alternatively, aluminum is anodically oxidized, a molten type fluororesin is applied to the surface and baked at a high temperature (380 to 400 ° C.) to cause cracks in the anodized film, and the molten fluororesin enters into this. There are also ways to enhance adhesion. When the metal is iron or stainless steel, a rough surface is generally formed by treatment with an aqueous ferrous chloride solution, but often by a blast method. The surface roughening treatment by blasting method involves forming the peaks and valleys of the rough surface by grinding the metal surface, and the height of the peaks and the depths of the valleys vary. The fineness may affect the adhesion of the coating film or may impair the smoothness of the coated surface.
If the etching is performed under certain conditions, the holes formed by the etching do not rise from the metal surface unlike the grinding of the metal surface, so that the coating film becomes smooth.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の方法におい
て、水を使用するブラスト法によるエッチングでは、処
理後の廃液の処理が公害問題との関係で困難である。ブ
ラストのみの方法では、粉塵が立ちこめ、作業者の健康
管理並びに工場内の清掃に問題が生じる。化学薬品を使
用したエッチング法では廃棄薬品の処理において問題が
あった。またアルマイト処理においても同様であった。
この発明は、上記のような処理上の難点に鑑みて、粉塵
や廃液などの後処理の必要のないエッチングをする方法
を鋭意研究した結果、この発明を完成したものである。In the above-mentioned conventional method, in the etching by the blast method using water, it is difficult to treat the waste liquid after the treatment due to the problem of pollution. With the blast-only method, dust is trapped, which causes problems in health care of workers and cleaning of the factory. The etching method using chemicals has a problem in treating waste chemicals. The same applies to the alumite treatment.
In view of the above-mentioned difficulties in processing, the present invention has been completed as a result of intensive research on a method of performing etching that does not require post-processing such as dust and waste liquid.
【０００４】[0004]
【課題を解決するための手段】この発明は上記課題を解
決し目的を達成するために次のような手段を講じた。According to the present invention, the following means are taken in order to solve the above-mentioned problems and achieve the object.
【０００５】すなわち、連続波Ｃｏ2レーザを用いて金
属表面を粗面化する工程と、該粗面化された金属表面に
弗素樹脂を塗着する工程と、高温で塗膜を焼成して弗素
樹脂皮膜を形成させる工程との結合からなることを特徴
とする弗素樹脂皮膜の形成方法から構成されている。ま
た、前記連続波Ｃｏ2レーザはパルス制御させることが
でき、前記連続波Ｃｏ2レーザによる粗面化処理工程に
おける処理表面の酸化を防止するためには、Ｎ2などの
不活性気流を処理表面に付与することができる。前記金
属として、ＮｉーＣｒ合金メッキを行った基材を使用す
ることができる。That is, a step of roughening a metal surface using a continuous wave Co 2 laser, a step of applying a fluororesin to the roughened metal surface, and a step of sintering the coating film at a high temperature to obtain a fluorine film. It comprises a method of forming a fluororesin film, which comprises combining with a step of forming a resin film. In addition, the continuous wave Co 2 laser can be pulse-controlled. In order to prevent oxidation of the processing surface in the surface roughening process using the continuous wave Co 2 laser, an inert gas flow such as N 2 is applied to the processing surface. Can be provided. As the metal, a base material plated with a Ni—Cr alloy can be used.
【０００６】[0006]
【作用】上記のように構成されたこの発明においては、
レーザのレンズの方向調整、照射時間の調整などにより
金属表面の粗面化の深さを任意に変化させることができ
る。Ｃｏ2ガスレーザによるとき、レンズ調整により孔
の大きさは約１０μｍの大きさになるので、弗素樹脂の
プライマ又は弗素樹脂デスパージヨン（上塗）が充分そ
の孔に入り込む。このため他の処理方法に比較して強固
な接着が得られる。この方法は特に鉄、鉄合金、ステン
レスに対して有効な方法であるが、適切な処理を施した
Ａｌは可能である。粗面化時において金属表面は局部的
高温に暴露されるので、その酸化を防止するためＮ2、
Ｃｏ2などの不活性ガスを金属面に流して酸化を防止す
る。In the present invention configured as described above,
The depth of the metal surface roughening can be arbitrarily changed by adjusting the direction of the laser lens, adjusting the irradiation time, or the like. When a Co 2 gas laser is used, the size of the hole becomes approximately 10 μm due to the lens adjustment, so that a fluororesin primer or a fluororesin purge gas (overcoat) sufficiently enters the hole. Therefore, stronger adhesion can be obtained as compared with other processing methods. Although this method is particularly effective for iron, iron alloys, and stainless steel, Al which has been appropriately treated can be used. During roughening, the metal surface is exposed to local high temperatures, so that N 2 ,
Inert gas such as Co 2 is passed over the metal surface to prevent oxidation.
【０００７】[0007]
【発明の実施の形態】この発明の実施の形態例を説明す
る。金属としてステンレススチール板を選定し、この表
面に出力１００ＷのＣｏ2レーザをパルス制御を行いつ
つ照射し、孔約径１０μｍ、深さ約１０μｍの孔を無数
に穿孔する粗面化処理を行った。しかる後、この粗面に
対して弗素樹脂デスパージョンを約１６μｍほど塗布
し、しかる後焼成炉において３８０°Ｃで１時間焼成
し、弗素樹脂皮膜を金属粗面上に形成した。この弗素樹
脂皮膜を形成したステンレススチール板は、クロスカッ
トに耐え（１００／１００）て、充分な付着強度を示し
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described. A stainless steel plate was selected as a metal, and the surface was irradiated with a 100 W output Co 2 laser while performing pulse control, and a surface roughening process was performed in which holes having a diameter of about 10 μm and a depth of about 10 μm were formed innumerably. . Thereafter, about 16 μm of a fluororesin dispersion was applied to the rough surface, and then baked at 380 ° C. for 1 hour in a firing furnace to form a fluororesin film on the rough metal surface. The stainless steel plate on which the fluorine resin film was formed endured the cross cut (100/100) and showed a sufficient adhesive strength.
【０００８】次に、鉄板表面に、出力１００ＷのＣｏ2
レーザをパルス制御を行いつつ照射し、孔約径１０μ
ｍ、深さ約１０μｍの孔を無数に穿孔する粗面化処理を
行うについて、鉄板表面にＮ2気流を流して表面の酸化
を防止しながら粗面化処理を行った。この粗面に弗素樹
脂プライマを塗布し、更に弗素樹脂（ＰＦＡ）粉体を塗
布し、焼成炉において３８０°Ｃで３０分間焼成し、弗
素樹脂皮膜を金属粗面上に形成した。この弗素樹脂皮膜
を形成した鉄板は、クロスカットに耐え（１００／１０
０）て、充分な付着強度を示した。Next, 100 W of output of Co 2
Irradiate with laser while controlling pulse, about 10μ hole diameter
Regarding the surface roughening treatment for innumerably drilling holes having a depth of about 10 μm and a depth of about 10 μm, the surface roughening treatment was performed while flowing an N 2 gas flow over the surface of the iron plate to prevent oxidation of the surface. A fluororesin primer was applied to the rough surface, and a fluororesin (PFA) powder was further applied, followed by firing in a firing furnace at 380 ° C. for 30 minutes to form a fluororesin film on the rough metal surface. The iron plate on which the fluorine resin film is formed withstands the cross cut (100/10
0), indicating a sufficient adhesion strength.
【０００９】前記と同じ方法でＳＵＳ３０４表面を粗面
化し、この表面に弗素樹脂（ＰＦＡ、ＰＴＦＥ分散５
０：５０混合液）を塗布し、焼成炉において３８０°Ｃ
で３０分間焼成し、弗素樹脂皮膜を金属粗面上に形成し
た。この弗素樹脂皮膜も密着に優れた塗膜（クロスカッ
ト１００／１００）であった。The surface of SUS304 is roughened in the same manner as described above, and a fluororesin (PFA, PTFE dispersion 5)
0:50 mixture) at 380 ° C. in a firing furnace.
For 30 minutes to form a fluororesin film on the rough metal surface. This fluorine resin film was also a coating film having excellent adhesion (cross cut 100/100).
【００１０】前記と同じ方法でＳＵＳ４３０表面を粗面
化し、この表面に弗素樹脂（ＰＦＡ）粉体により約３５
μｍの塗膜を形成し、真空炉中において１０ー3トールの
条件下で３８０°Ｃ×１時間焼成したものは強固な接着
力を有した（クロスカット１００／１００）。[0010] The surface of SUS430 is roughened in the same manner as described above, and this surface is coated with fluororesin (PFA) powder for about 35%.
A film having a thickness of .mu.m and baked in a vacuum furnace at 380.degree. C. for 1 hour under the conditions of 10.sup. -3 torr had a strong adhesive force (cross cut 100/100).
【００１１】前記焼成温度は３６０°Ｃ〜４２０°Ｃの
範囲で、好ましくは３７５°Ｃ〜３８５°Ｃで、焼成時
間は２５分ないし８０分で充分である。この発明におい
て得られる弗素樹脂皮膜を形成した金属は、精密機械部
品、ＯＡ機器部品、搬送機器、台所用品などの幅広い分
野に使用することができる。The firing temperature is in the range of 360 ° C. to 420 ° C., preferably 375 ° C. to 385 ° C., and the firing time of 25 to 80 minutes is sufficient. The metal formed with the fluororesin film obtained in the present invention can be used in a wide range of fields such as precision machine parts, OA equipment parts, transport equipment, and kitchenware.
【００１２】[0012]
【発明の効果】以上説明したように、この発明は次のよ
うなすぐれた効果を有している。As described above, the present invention has the following excellent effects.
【００１３】Ａ． ブラストや化学エッチングなど従来
の粗面化方法と比較して、処理時間が早く、かつ均等な
粗面化処理をすることができる効果がある。A. Compared with conventional surface roughening methods such as blasting and chemical etching, there is an effect that the processing time is short and uniform surface roughening treatment can be performed.
【００１４】Ｂ． 処理時間が早いので作業性にすぐれ
てコスト負担が軽く、均等な粗面化処理により製品の向
上に寄与する効果がある。B. Since the processing time is short, the workability is excellent and the cost burden is light, and there is an effect of contributing to the improvement of the product by uniform surface roughening treatment.
【００１５】Ｃ． レーザによるエッチングなので、ブ
ラスト、化学エッチング等従来の方法と比較して公害問
題がなく、作業者の健康管理、地域社会に対する公害防
止等に優れている効果がある。C. Since the etching is performed by the laser, there is no pollution problem as compared with the conventional methods such as blasting and chemical etching, and there is an effect that is excellent in the health management of workers, prevention of pollution to the local community, and the like.
Claims (4)
粗面化する工程と、該粗面化された金属表面に弗素樹脂
を塗着する工程と、高温で塗膜を焼成して弗素樹脂皮膜
を形成させる工程との結合からなることを特徴とする弗
素樹脂皮膜の形成方法。1. A step of roughening a metal surface using a continuous wave Co 2 laser, a step of coating a fluororesin on the roughened metal surface, and baking the coating film at a high temperature to obtain a fluorine film. A method for forming a fluororesin film, comprising a combination with a step of forming a resin film.
せることを特徴とする請求項１記載の弗素樹脂皮膜の形
成方法。2. The method according to claim 1, wherein the continuous wave Co 2 laser is pulse-controlled.
理工程における処理表面の酸化を防止するためにＮ2な
どの不活性気流を処理表面に付与することを特徴とする
請求項１記載の弗素樹脂皮膜の形成方法。3. The processing surface according to claim 1, wherein an inert gas flow such as N 2 is applied to the processing surface in order to prevent oxidation of the processing surface in the surface roughening processing step using the continuous wave Co 2 laser. A method for forming a fluororesin film.
を行った基材であることを特徴とする請求項１記載の弗
素樹脂皮膜の形成方法。4. The method according to claim 1, wherein the metal surface is a base material plated with a Ni—Cr alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23263996A JPH1058595A (en) | 1996-08-15 | 1996-08-15 | Method for forming fluororesin coat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23263996A JPH1058595A (en) | 1996-08-15 | 1996-08-15 | Method for forming fluororesin coat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1058595A true JPH1058595A (en) | 1998-03-03 |
Family
ID=16942460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23263996A Pending JPH1058595A (en) | 1996-08-15 | 1996-08-15 | Method for forming fluororesin coat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1058595A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1454678A1 (en) * | 2001-10-26 | 2004-09-08 | Seiko Instruments Inc. | Method of coating fluorocarbon resin and sliding member and gas compressor using the same |
| JP2011529404A (en) * | 2008-07-28 | 2011-12-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Composite member and method of manufacturing composite member |
| JP2013502329A (en) * | 2009-08-17 | 2013-01-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | COMPONENT COMPLEX AND METHOD FOR PRODUCING COMPONENT COMPLEX |
| WO2014038563A1 (en) * | 2012-09-07 | 2014-03-13 | ダイセルポリマー株式会社 | Method for manufacturing composite molded body |
| JP2015213961A (en) * | 2013-07-18 | 2015-12-03 | ダイセルポリマー株式会社 | Method for producing composite molding |
| JP2016044337A (en) * | 2014-08-25 | 2016-04-04 | ダイセルポリマー株式会社 | Method of manufacturing composite molding |
| EP2955023A4 (en) * | 2013-02-06 | 2016-11-09 | Taiho Kogyo Co Ltd | Sliding member, method for manufacturing same, and compressor swash plate using sliding member |
-
1996
- 1996-08-15 JP JP23263996A patent/JPH1058595A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1454678A1 (en) * | 2001-10-26 | 2004-09-08 | Seiko Instruments Inc. | Method of coating fluorocarbon resin and sliding member and gas compressor using the same |
| EP1464411A1 (en) * | 2001-10-26 | 2004-10-06 | Seiko Instruments Inc. | Method of coating fluorocarbon resin |
| US7175887B2 (en) * | 2001-10-26 | 2007-02-13 | Calsonic Compressors Manufacturing Inc. | Method of coating a fluorocarbon resin |
| JP2011529404A (en) * | 2008-07-28 | 2011-12-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Composite member and method of manufacturing composite member |
| JP2013502329A (en) * | 2009-08-17 | 2013-01-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | COMPONENT COMPLEX AND METHOD FOR PRODUCING COMPONENT COMPLEX |
| WO2014038563A1 (en) * | 2012-09-07 | 2014-03-13 | ダイセルポリマー株式会社 | Method for manufacturing composite molded body |
| EP2955023A4 (en) * | 2013-02-06 | 2016-11-09 | Taiho Kogyo Co Ltd | Sliding member, method for manufacturing same, and compressor swash plate using sliding member |
| JP2015213961A (en) * | 2013-07-18 | 2015-12-03 | ダイセルポリマー株式会社 | Method for producing composite molding |
| US10434741B2 (en) | 2013-07-18 | 2019-10-08 | Daicel Polymer Ltd. | Composite molded article |
| JP2016044337A (en) * | 2014-08-25 | 2016-04-04 | ダイセルポリマー株式会社 | Method of manufacturing composite molding |
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Legal Events
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Effective date: 20061002 Free format text: JAPANESE INTERMEDIATE CODE: A523 |