JPH06104908B2 - Chemical conversion treatment method - Google Patents
Chemical conversion treatment methodInfo
- Publication number
- JPH06104908B2 JPH06104908B2 JP63118962A JP11896288A JPH06104908B2 JP H06104908 B2 JPH06104908 B2 JP H06104908B2 JP 63118962 A JP63118962 A JP 63118962A JP 11896288 A JP11896288 A JP 11896288A JP H06104908 B2 JPH06104908 B2 JP H06104908B2
- Authority
- JP
- Japan
- Prior art keywords
- coating
- film
- treatment
- materials
- washing
- 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
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
- C23C22/73—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 characterised by the process
Description
本発明は化成処理する、特にアルミニウム材（Al材）、
銅材（Cu材）、チタン材（Ti材）、ステンレス材（SuS
材）、及びそれらの合金材や複合材を予め加温しておく
ことと、塗装前処理用無水洗型（塗布皮膜）の表面処理
液を使いスプレー塗布により皮膜化成する方法に関す
る。The present invention performs chemical conversion treatment, particularly aluminum material (Al material),
Copper material (Cu material), titanium material (Ti material), stainless steel material (SuS
Material), and their alloy materials and composite materials, and a method of forming a film by spray coating using a surface treatment liquid of an anhydrous washing type (coating film) for pretreatment for coating.
従来、Al材やZn材に対する通常の化成処理方法は、反応
皮膜の場合は、脱脂→水洗→（酸洗又は研磨→水洗）→
皮膜処理→水洗→水洗又は湯洗→乾燥の工程を浸漬法又
はスプレー法で実施している。塗布型皮膜の場合は脱脂
→水洗→水洗又は湯洗→乾燥→冷却→皮膜塗布処理→乾
燥の工程を浸漬法、スプレー法又はロール塗布法で実施
し、その後塗装を行なっている。化成皮膜処理が困難な
SuS材、Ti材、Cu材等については脱脂→水洗→乾燥→ブ
ラスト又は研磨→水洗→湯洗→乾燥を行ない素材表面の
アンカーパターンを利用して塗装の密着性を向上してい
る。又、最近は脱脂→水洗→乾燥→（ブラスト又は研磨
→水洗→湯洗→乾燥）→冷却→皮膜塗布処理→乾燥を行
ない塗装する方法も実施されて来ている。 これらの工程で脱脂については素材に付着している油、
汚れ等を除去する目的であり、通常はアルカリ系脱脂剤
が使用される。酸洗又は研磨については素材表面の除錆
又はスマット除去等表面洗浄の一環として行なわれる場
合もある。皮膜処理については素材表面の防錆と塗料の
密着性を向上する目的で行ない、通常は反応皮膜の場合
加温した皮膜化成処理液（酸性タイプ）が使用される
が、塗布皮膜の場合は室温の処理液が使われる。Conventionally, the usual chemical conversion treatment method for Al and Zn materials is degreasing → water washing → (pickling or polishing → water washing) →
The steps of film treatment → washing → washing with water or washing with hot water → drying are carried out by a dipping method or a spraying method. In the case of a coating type coating, the steps of degreasing → washing → washing or hot water → drying → cooling → coating coating → drying are performed by a dipping method, a spray method or a roll coating method, and then coating is performed. Difficult to process chemical conversion coating
For SuS material, Ti material, Cu material, etc., degreasing → water washing → drying → blasting or polishing → water washing → hot water washing → drying are performed to improve the adhesion of coating by using the anchor pattern on the material surface. Recently, a method of degreasing → washing → drying → (blasting or polishing → washing → washing with water → drying) → cooling → coating coating → drying has been practiced. For degreasing in these steps, the oil attached to the material,
An alkaline degreasing agent is usually used for the purpose of removing dirt and the like. The pickling or polishing may be performed as part of surface cleaning such as rust removal or smut removal on the surface of the material. The film treatment is carried out for the purpose of preventing rust on the surface of the material and improving the adhesion of the paint. Normally, a heated film conversion treatment solution (acidic type) is used for the reaction film, but at room temperature for the applied film. Processing solution is used.
前記した従来の方法では以下のような幾つかの課題があ
る。 （１） 反応皮膜の場合、処理槽に入らない型状品は皮
膜処理ができない。 （２） 塗布型皮膜の場合、コイル処理品以外の品物で
は、処理槽に入る型状品は、dip処理することが通常で
あるが、品物を槽から出した時、品物の下部に処理液の
タレが発生し、乾燥時点で、タレムラ発生や皮膜不均一
で外観不良となる。処理槽に入らない型状品は、ハケ塗
り、スプレー処理によって処理はできるが、上記同様に
タレムラ、塗布皮膜量が不均一となる。特に素材の下部
には処理液の留りができるので、処理外観不良〜その後
の塗装の外観不良や液留り部の塗装剥離が生じる。対策
として、処理液留りを物理的除去（エアーブローで吹き
飛す。又は布で拭き取る。）で行なうことがあるが、不
十分である。 （３） 塗布型皮膜の場合、処理液の方を加温して塗布
しても、被処理物が冷たいと品物の下部に処理液の留り
を生じるので上記（２）と同様の結果となる。又、処理
液の種類によっては処理液自体が固まったり、組成が変
化することがある。（特に樹脂、Cr、Si、有機、キレー
ト剤、溶剤等を含む処理液）。 （４） 皮膜処理を行なわず素材表面の清浄のみ（脱脂
のみ、ブラスト又は研磨のみの場合）で塗装を行なうと
塗料との耐水２次密着性が悪い。The conventional method described above has some problems as follows. (1) In the case of a reactive film, a film-shaped product that does not enter the processing tank cannot be film-processed. (2) In the case of a coating type film, for products other than coil-treated products, mold products that enter the processing tank are usually subjected to dip processing, but when the product is taken out of the tank, the processing liquid is applied to the bottom of the product. Sagging occurs, and at the time of drying, sagging unevenness and uneven coating occur, resulting in poor appearance. Molded articles that do not enter the processing tank can be treated by brushing or spraying, but the unevenness of sag and the amount of coating film becomes uneven as described above. In particular, since the treatment liquid can remain in the lower part of the material, the appearance of the treatment can be deteriorated, the appearance of the coating after the treatment can be deteriorated, and the paint can be peeled off from the retained portion. As a countermeasure, the treatment solution may be physically removed (blown with an air blow or wiped with a cloth), but this is insufficient. (3) In the case of a coating type film, even if the treatment liquid is heated and applied, if the treatment target is cold, the treatment liquid remains at the bottom of the product, so the same result as above (2) is obtained. Become. Further, depending on the type of treatment liquid, the treatment liquid itself may solidify or the composition may change. (In particular, treatment liquid containing resin, Cr, Si, organic, chelating agent, solvent, etc.). (4) If the material surface is not cleaned and only the surface of the material is cleaned (only degreasing, blasting or polishing), the water-resistant secondary adhesion with the coating is poor.
本発明は、前記した従来技術における（１）〜（４）の
課題を解消する具体的手段として、被処理物表面に無水
洗型の塗装下地皮膜を形成する際に、被処理物を40〜14
0℃に加温し、その表面に乾燥皮膜として５〜200mg/m2
の塗装下地皮膜を形成させることを特徴とする皮膜形成
方法を提供するものである。The present invention, as a specific means for solving the problems (1) to (4) in the above-mentioned prior art, applies 40 to 40% of the object to be treated when forming an anhydrous washing type coating base film on the surface of the object to be treated. 14
After heating to 0 ℃, dry film on the surface of 5-200mg / m 2
The present invention provides a method for forming a coating film, which comprises forming the undercoat coating film.
前記構成要件を特定した本発明の化成処理方法は、特に
Al材、銅材、SuS材、Ti材及びそれらの合金材料や複合
材に使用すると効果がある。 本発明による皮膜化成処理方法は脱脂→水洗→酸洗、研
磨又はブラスト→水洗→水洗又は湯洗→乾燥→冷却→加
温→皮膜処理（スプレー塗布、皮膜付着量５〜200mg/
m2、好ましくは10〜100mg/m2）でありその後通常の塗装
工程となる。上記工程中で酸洗、研磨又はブラストの工
程は素材の表面状況により省略することもできる。 加温の方法は、品物の温度を40℃以上にすることができ
る通常の方法、例えば高周波加熱法、赤外線加熱法、乾
燥炉による方法、ジェットヒーターによる方法等々一般
的な方法はいずれも使用できる。湯洗や乾燥工程の後で
品物の温度が40℃以上であり、品物の表面が乾燥してい
れば、加温工程を省くことができる。 皮膜処理は処理液をスプレー塗布する方法であり、この
時の品物の温度が特に重要であり、処理液をスプレー塗
布した時に直ちに乾燥する温度、すなわち40〜140℃の
範囲であり、好ましくは70〜130℃である。品物の温度
が40℃の以下の場合、処理液をスプレー塗布すると物温
が低くなり直ちに乾燥しないので特に品物の下部には処
理液留りが生じるので処理外観不良〜その後の塗装の外
観不良や液留り部の塗装剥離、ブリスター発生がある。
又、一方品物の温度が140℃以上であると、処理液を塗
布しても乾燥が速すぎるので処理液の拡がりがなく、均
一塗布をするには技術を要するし、又、処理液の種類に
よっては危険である。（例えば水と溶剤が混入されてい
る場合は発火等の危険がある。）又、省エネ等考えると
非現実的であり好ましくない。 皮膜付着量は5mg/m2未満だと目的とする性能の皮膜が形
成できず、200mg/m2を超えると被処理物下部に留りを生
じる。The chemical conversion treatment method of the present invention in which the above-mentioned constituents are specified is particularly
It is effective when used for Al materials, copper materials, SuS materials, Ti materials and their alloy materials and composite materials. The film chemical conversion treatment method according to the present invention includes degreasing → water washing → pickling, polishing or blasting → water washing → water washing or hot water washing → drying → cooling → heating → film treatment (spray coating, coating amount 5 to 200 mg /
m 2 , preferably 10 to 100 mg / m 2 ), followed by the usual painting process. The steps of pickling, polishing or blasting in the above steps may be omitted depending on the surface condition of the material. As a heating method, any ordinary method such as a high frequency heating method, an infrared heating method, a drying furnace method, a jet heater method, or the like can be used, which is a usual method capable of raising the temperature of the article to 40 ° C. or higher. . If the temperature of the product is 40 ° C or higher after the washing with water or the drying process and the surface of the product is dry, the heating process can be omitted. The film treatment is a method of spray-coating the treatment liquid, and the temperature of the article at this time is particularly important, and the temperature at which the treatment liquid is immediately dried when spray-applied, that is, in the range of 40 to 140 ° C., preferably 70 ~ 130 ° C. If the temperature of the product is below 40 ℃, spraying the treatment liquid will lower the temperature of the product and will not dry immediately.Therefore, the treatment liquid will remain in the lower part of the product. There is peeling of the paint in the liquid retention part and blistering.
On the other hand, if the temperature of the product is 140 ° C or higher, the coating solution does not spread even if it is applied, so that the processing solution does not spread and a technique is required to achieve uniform application. Depending on how dangerous it is. (For example, if water and a solvent are mixed, there is a risk of ignition.) Also, considering energy saving, it is unrealistic and not preferable. If the amount of coating adhered is less than 5 mg / m 2 , a film with the desired performance cannot be formed, and if it exceeds 200 mg / m 2 , residue will form at the bottom of the object to be treated.
以下に本発明による皮膜化成処理方法に関し、幾つかの
実施例を比較例と共に表−１に示す。 供試材:JISGステンレス鋼板SUS-304寸法は500×500mmの
物を使用した。 処理法：アルカリ脱脂〔製品名ファインクリーナ4360、
日本パーカライジング（株）製を使用〕→水洗→乾燥…
本発明による加温処理→皮膜化成処理〔製品名、パル
クロム−Ｒ−282、日本パーカライジング（株）製スプ
レー塗布〕（主成分＝Cr＋SiO2＋PO4） 塗装法：以上の処理板を室内に放冷後、フッ素塗料〔商
品名、フロロポン−Ｓ大日本インキ化学工業（株）製を
使用〕をスプレー塗装し焼付を行なう。乾燥膜厚は30〜
35μ（プライマー＋上塗りの合計）とした。 試験法：（１） 上記塗装板を１昼夜室温放置後、塗装
外観状況（ムラ）1mm角、100個のゴバン目を付けたのち
セロテープを圧着し急に引き剥がしたときのゴバン目の
塗膜の残存目数を示し、もって一次密着性を評価した。 100/100…全く塗膜が剥離しない 50/100…50％剥離 0/100…完全剥離 別に上記塗装板を沸騰した温水中に２時間浸漬後取り出
して余剰の水を拭き取り１時間室内放置後に前記と同様
のゴバン目試験を行ない、もって耐水二次密着性を評価
した。（特に下部のムラ発生部をテスト） （２） 塗装後の塗膜外観を目視にて判定する。（ム
ラ、剥離状態）Table 1 shows some examples of the film chemical conversion treatment method according to the present invention together with comparative examples. Specimen: JISG stainless steel plate SUS-304 with dimensions of 500 x 500 mm was used. Treatment method: Alkaline degreasing [Product name: Fine Cleaner 4360,
Made by Nihon Parkerizing Co., Ltd.] → Washing → Drying ...
Heat treatment according to the present invention → film chemical conversion treatment [Product name, Palchrome-R-282, spray coating manufactured by Nippon Parkerizing Co., Ltd.] (main component = Cr + SiO 2 + PO 4 ) Coating method: The above treated plate is allowed to cool indoors After that, a fluorine coating [trade name, Fluoropon-S manufactured by Dainippon Ink & Chemicals, Inc.] is spray-coated and baked. Dry film thickness is 30 ~
35μ (total of primer + overcoat). Test method: (1) After leaving the above coated plate for 1 day at room temperature, the appearance of the coating (unevenness) 1 mm square, 100 gouged eyes, and then a cellophane tape was crimped and suddenly peeled off. The number of residual stitches was shown, and thus the primary adhesion was evaluated. 100/100 ... No peeling of coating 50/100 ... 50% peeling 0/100 ... Complete peeling Separately, soak the coated plate in boiling water for 2 hours, remove it, wipe off excess water, and leave it for 1 hour in the room. The same goggles test was carried out to evaluate the water-resistant secondary adhesion. (In particular, the lower unevenness-occurring portion is tested.) (2) The appearance of the coating film after coating is visually determined. (Unevenness, peeling state)
前記実施例の場合と同一の供試材をアルカリ脱脂水洗
後、夫々次の処理を行なった。 比較例１〜４記載の板温にて皮膜化成処理（実施例と同
じ液条件）を行なったのち実施例と同様に塗装したも
の。 比較例５…供試材をアルカリ脱脂水洗〜乾燥後皮膜化成
処理を行なわず、実施例と同様に塗装したもの。 The same test material as in the above-mentioned example was washed with alkaline degreased water and then subjected to the following treatments. A film was formed in the same manner as in Example 1 after the film chemical conversion treatment (the same liquid conditions as in Example 1) was performed at the plate temperature described in Comparative Examples 1 to 4. Comparative Example 5 ... The test material was coated in the same manner as in the Example without washing with alkaline degreased water and drying, and then performing no film conversion treatment.
本発明を実施することにより以下の作用効果が得られ
る。 （１） 脱脂→水洗→酸洗、研磨又はブラスト→水洗→
水洗又は湯洗→乾燥→冷却→加温→皮膜処理（スプレー
塗布）→放置→塗装→焼付の工程において（酸洗…水洗
工程は素材表面状況によっては省略できる。水洗又は湯
洗…加温工程は皮膜処理する時点で品物の温度が40℃以
上であり品物の表面が乾燥していれば、いずれかの工程
を省略することができる。）皮膜処理する時点の品物の
温度が40〜140℃であれば、処理液をスプレー塗布する
ことにより品物に塗布された処理液は品物の保持してい
る熱により、直ちに均一な皮膜として塗布乾燥されるの
で、従来問題となっていた処理液のタレムラ、液留り及
び塗布皮膜の均一（塗布ムラ）が軽減し、解消されるの
で、この後の塗装においても塗装外観不良や液留り部分
の塗装剥離、ブリスター発生の防止に大きな効果を奏す
る。 又特に従来ではスプレー塗布のみでは皮膜化成されにく
かったSuS材、Al材、Cu材、TI材、及びその合金や複合
材に対しては、本発明方法を行なうことにより、これら
素材表面と処理皮膜の界面において密着性の良い皮膜が
形成されるのでこの後実施される塗装において塗料密着
性の向上に大きな効果を奏する。 （２） 処理槽に入らない型状物や現地設工の品物でも
本発明の方法（特に、本発明工程は溶剤脱脂肪→加温→
皮膜処理→塗装）を適用することにより皮膜処理ができ
るので、従来の脱脂肪（通常は溶剤使用）→塗装に比べ
塗料密着性が向上する効果を奏する。 以上総合し、且つ前記実施例並びに比較例で示された通
り、本発明による皮膜化成処理方法を実施することによ
り、処理槽に入らない型状品の皮膜処理、塗布皮膜の場
合の処理液のタレ部の解消や外観不良の解消を行なえる
等の種々の効果を奏するものである。The following operational effects can be obtained by implementing the present invention. (1) Degreasing → washing → pickling, polishing or blasting → washing →
Rinsing with water or hot water → Drying → Cooling → Heating → Film treatment (spray application) → Leaving → Painting → Baking (pickling ... water washing can be omitted depending on the surface condition of the material. If the temperature of the product is 40 ° C or more at the time of film treatment and the surface of the product is dry, either step can be omitted.) The temperature of the product at the time of film treatment is 40 to 140 ° C. In this case, the treatment liquid applied to the product by spray coating the treatment liquid is immediately applied and dried as a uniform film due to the heat held in the product, which causes a problem of sagging unevenness of the treatment liquid. Further, since the liquid retention and the uniformity of the coating film (unevenness of coating) are reduced and eliminated, even in the subsequent coating, a great effect can be obtained in preventing a defective coating appearance, peeling of the coating in the liquid retention portion, and occurrence of blisters. In addition, especially for SuS materials, Al materials, Cu materials, TI materials, and alloys and composite materials thereof, which have been difficult to form a film by spray coating alone in the past, by performing the method of the present invention, the surface of these materials and the treated film are treated. Since a film having good adhesion is formed at the interface of (3), it has a great effect on the improvement of paint adhesion in the subsequent coating. (2) The method of the present invention can be applied to a mold or a locally constructed product that does not enter the treatment tank (in particular, the process of the present invention is solvent defatting → heating →
Since coating treatment can be performed by applying coating treatment → coating, it has the effect of improving paint adhesion compared to conventional defatting (usually using a solvent) → coating. As a whole, and as shown in the above-mentioned Examples and Comparative Examples, by carrying out the film chemical conversion treatment method according to the present invention, the film treatment of a molded article which does not enter the treatment tank, the treatment liquid in the case of a coating film, Various effects such as elimination of sagging portions and elimination of appearance defects can be achieved.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福田 昭光 東京都中央区日本橋１丁目15番１号 日本 パーカライジング株式会社内 (72)発明者 森岡 征志 兵庫県尼崎市西向島町81番地２ 大阪パー カライジング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akimitsu Fukuda 1-15-1 Nihonbashi, Chuo-ku, Tokyo Within Japan Parkerizing Co., Ltd. Within the corporation
Claims (1)
レス材およびそれらの合金材や複合材から選ばれる型状
成形被処理物表面に無水洗型の塗装下地皮膜を形成する
際に、被処理物を40〜140℃に加温し、その表面にスプ
レー塗布方法にて乾燥皮膜として５〜200mg/m2の塗装下
地皮膜を形成させることを特徴とする皮膜形成方法。1. A process for forming an anhydrous washing type coating base film on the surface of a molded object to be processed selected from aluminum materials, copper materials, titanium materials, stainless steel materials, and alloy materials and composite materials thereof. A method for forming a film, which comprises heating an object to 40 to 140 ° C., and forming a coating base film of 5 to 200 mg / m 2 as a dry film on the surface by a spray coating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63118962A JPH06104908B2 (en) | 1988-05-16 | 1988-05-16 | Chemical conversion treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63118962A JPH06104908B2 (en) | 1988-05-16 | 1988-05-16 | Chemical conversion treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01290779A JPH01290779A (en) | 1989-11-22 |
| JPH06104908B2 true JPH06104908B2 (en) | 1994-12-21 |
Family
ID=14749586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63118962A Expired - Fee Related JPH06104908B2 (en) | 1988-05-16 | 1988-05-16 | Chemical conversion treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06104908B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6536884B2 (en) * | 2015-04-30 | 2019-07-03 | シグマテクノロジー有限会社 | Modification method of metal surface using micro and nano bubble and adhesion method of metal and resin |
| JP7217136B2 (en) * | 2018-11-14 | 2023-02-02 | 日本パーカライジング株式会社 | METHOD FOR MANUFACTURING SUBSTRATE WITH FILM |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607973A (en) * | 1983-06-28 | 1985-01-16 | Nippon Steel Corp | Production of painted metal hot-dipped steel plate |
-
1988
- 1988-05-16 JP JP63118962A patent/JPH06104908B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607973A (en) * | 1983-06-28 | 1985-01-16 | Nippon Steel Corp | Production of painted metal hot-dipped steel plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01290779A (en) | 1989-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |