JPS59122556A - Inorganic corrosion-protection paint - Google Patents
Inorganic corrosion-protection paintInfo
- Publication number
- JPS59122556A JPS59122556A JP22811282A JP22811282A JPS59122556A JP S59122556 A JPS59122556 A JP S59122556A JP 22811282 A JP22811282 A JP 22811282A JP 22811282 A JP22811282 A JP 22811282A JP S59122556 A JPS59122556 A JP S59122556A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- rust
- inorganic
- coating film
- 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
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Abstract
Description
【発明の詳細な説明】
−本発明は、透明乃至半透明な塗膜を形成する無機質系
防錆塗料に関し、その目的は鋼材の溶接部分及びその周
辺にも好適に使用できる無機質系防錆塗料を提供すると
ころにある。Detailed Description of the Invention: - The present invention relates to an inorganic anti-corrosion paint that forms a transparent or semi-transparent coating film, and its purpose is to provide an inorganic anti-rust paint that can be suitably used on welded parts of steel materials and their surroundings. It is in a place where we provide.
一般に、船舶、海洋構造物、橋梁、タンク、プラント等
の大聖鋼構造物の建造工程は、次の通りである。（１）
建造工程中における鋼材の発錆を一次的に防止するため
、及び防食塗料との付着性を向上嘔せるために鋼材表面
に一次防錆塗料（ブライマー）を塗付する。−次防錆塗
料としては、ポリビニルブチラール樹脂、ジンククロメ
ート及びリン酸を主成分とする所謂ウォッシュプライマ
ー、防錆顔料を多量に配合したエポキシ樹脂系ノンジン
クプライマー、エポキシ樹脂等の有機樹脂に亜鉛末を高
濃度に配合した有機質ジンクリッチプライマー、アルキ
ルシリケート等の無機質樹脂に亜鉛末を高濃度に配合し
た無機質ジンクリッチプライマー等が使用されている。Generally, the construction process for Daisei Steel structures such as ships, offshore structures, bridges, tanks, and plants is as follows. (1)
In order to temporarily prevent steel from rusting during the construction process and to improve adhesion to anticorrosive paint, a primary rust preventive paint (brimer) is applied to the surface of the steel. -Next anti-rust paints include so-called wash primers whose main components are polyvinyl butyral resin, zinc chromate and phosphoric acid, epoxy resin non-zinc primers containing a large amount of anti-rust pigments, and organic resins such as epoxy resins with zinc powder. Organic zinc-rich primers containing a high concentration of zinc powder, and inorganic zinc-rich primers containing a high concentration of zinc powder in an inorganic resin such as alkyl silicate are used.
（２ン一次防錆塗料を塗装した鋼材に、溶断、溶接、組
み立て等の加工を施す。（８）建造された大型鋼構造物
に恒久的な防食性を付与するために防食塗料を塗装する
。防食塗料としては、上記−次防錆塗料と類似した組成
のものを厚く塗装して使用されている。又、タールエポ
キシ塗料、ビニル樹脂塗料、塩化ゴム塗料等も使用され
ている。（４）上塗塗料等を適宜塗装する。(2) Steel materials coated with primary anti-corrosion paint are subjected to processes such as fusing, welding, and assembly. (8) Anti-corrosion paint is applied to provide permanent corrosion protection to large steel structures that have been built. As anti-corrosion paint, a thick coating of a composition similar to the above-mentioned anti-rust paint is used. Also used are tar epoxy paint, vinyl resin paint, chlorinated rubber paint, etc. (4) ) Apply top coat paint etc. as appropriate.
上記工程の内、（２）の溶断、溶接工程において、溶断
、溶接された部分及びその近傍の一次防錆塗膜は熱によ
って焼失し、また溶接部分には新たに溶着金属部分が形
成されるが、これらの焼失部分及び溶着金属部分はその
まま放置しておくと錆が発生する。従って、これらの部
分に防食用塗料を塗装するに当って、事前にこれらの錆
を除去しておくことが不可欠である。これらの部分の除
錆はサンドブラスト、ディスクサンダー、ワイヤホイル
等の電動工具を用いて行なうのであるが、溶接部分の面
積は莫大であり、しかもその表面は凹凸状であって、か
つ狭あい部に位置していることが多いため、多くの人力
と時間を必要とし、大型鋼構造物の建造工程における除
錆作業工数は非常に高い比率を占めるうえ、労働条件が
苛酷で安全衛生面でも好ましくない。これらを改善する
方法として溶接直後でしか゛も錆が発生しないうちに、
前記従来の一次防錆塗料又は防食塗料を塗装すれば除錆
作業は省略し得るが、その際多くの欠点が生じる。In the fusing and welding process (2) of the above steps, the primary anti-corrosion coating in and around the fusing and welded part is burned away by heat, and a new welded metal part is formed at the welded part. However, if these burnt parts and welded metal parts are left as they are, rust will occur. Therefore, it is essential to remove the rust before applying anticorrosive paint to these parts. Rust removal from these parts is carried out using power tools such as sandblasting, disc sanders, and wire foils, but the area of the welded parts is enormous, the surface is uneven, and the welds are located in narrow spaces. Rust removal requires a large amount of manpower and time, and the number of man-hours required for rust removal in the construction process of large steel structures is extremely high.The working conditions are harsh and unfavorable from a health and safety perspective. As a way to improve these problems, immediately after welding, before rust occurs,
Although the rust removal work can be omitted by applying the conventional primary rust-preventing paint or anti-corrosion paint, many drawbacks arise in this case.
即ち、溶接部分は、鋼構造物の物理的強度を維持するの
に極めて重要な部分であり、建造工程中において、溶接
部分の溶接性欠陥の有無に関する検査をする必要がある
が、溶接直後に前記従来の一次防錆塗料等を塗装すると
、これらには防錆乃至防食性を付与する目的で多量のジ
ンククロメート、防錆顔料又は亜鉛末が配合されている
ことにより、いずれも隠ペイ力が大きく不透明であるた
めに、溶接部分の検査を行なうことが不可能になるとい
う大きな欠点がある。それに対して、ジンククロメート
に代えて無水クロム酸を用いたウォッシュプライマー等
の半透明の塗膜を形成し得る一次防錆塗料も知られてい
るが、このものは後記比較例に示す様に、防錆乃至防食
性が不充分で使用に耐えない。また、溶接直後の溶接部
分及びその周辺は溶接棒から発生するヒユームが付着（
ヒユームを完全に除去することは困難である）している
ためにアルカリ性が高く、且っ溶着金属円に水素ガスが
含有されている状態であり、従来の一次防錆塗料の内ウ
ォッシュプライーマー、エポキシ樹脂系ノンジンクブラ
イマー及び有機質ジンクリッチプライマーを塗装した場
合には、ビヒクル成分として用いられている有機質樹脂
自体の耐アルカリ性が不足していること、形成した塗膜
の気密性が高いこと等により、塗膜にブリスターが答易
に発生し、また水素の放出を妨げるために特に高張力鋼
材では脆性割れの原因になるという欠点がある。しかも
最近、長期防食の観点から、−次防錆塗膜上に塗装する
防食塗料として厚塗り型無機質ジンクリッチ塗料が大型
鋼構造物に採用されることが多く、有機質樹脂を用いた
一次防錆塗料は、この種の無機質ジンクリッチ塗料との
付層性が悪いため、使用し難いという欠点がある。また
、従来の一次防錆塗料の内、無機質ジンクリッチプライ
マーは、ビヒクルの無機質樹脂と亜鉛末との反応により
硬化塗膜を形成することから一次防錆塗料に要求される
速乾性を出すため、及び防錆乃至防食性を付与するため
少くとも８０容量％の亜鉛末を配合しているので、無機
質樹脂自体の耐アルカリ性は優れていても、溶接直後に
塗装すると、多量に含有されている亜鉛末が溶接部分及
びその周辺のアルカリ分と反応して塗膜にブリスターを
発生するという欠点がある。加えて、無機質樹脂による
塗膜は脆いため、特に溶接部分及びその周辺の様な凹凸
面では、塗膜形成時にワレを生じ易いという欠点がある
。In other words, welded parts are extremely important for maintaining the physical strength of steel structures, and it is necessary to inspect the welded parts for weldability defects during the construction process. When applied with the conventional primary rust-preventing paints, etc., they contain large amounts of zinc chromate, rust-preventive pigments, or zinc powder for the purpose of imparting anti-rust or anti-corrosion properties, so all of them have poor hiding power. A major drawback is that the large opacity makes it impossible to inspect the weld. On the other hand, there are also known primary rust preventive paints that can form a translucent coating, such as wash primers that use chromic anhydride instead of zinc chromate, but as shown in the comparative example below, Rust and corrosion resistance is insufficient and it cannot withstand use. In addition, fumes generated from the welding rod may adhere to the welded part and its surroundings immediately after welding.
Because it is difficult to completely remove fumes, it is highly alkaline and contains hydrogen gas in the weld metal circle.Wash primer is one of the conventional primary rust preventive paints. When painting with an epoxy resin non-zinc primer or an organic zinc rich primer, the organic resin itself used as a vehicle component may lack alkali resistance, the formed coating film may have high airtightness, etc. As a result, blisters are easily generated in the coating film, and this also has the disadvantage that it can cause brittle cracking, especially in high-tensile steel materials, since it prevents the release of hydrogen. Moreover, recently, from the perspective of long-term corrosion protection, thick-coat inorganic zinc-rich paints are often used on large steel structures as anti-corrosion paints to be applied on top of secondary rust-preventing coatings, and primary rust-preventing paints using organic resins The paint has the disadvantage that it is difficult to use because it has poor layer adhesion with this type of inorganic zinc-rich paint. In addition, among conventional primary rust prevention paints, inorganic zinc-rich primers form a cured coating film through the reaction between the inorganic resin of the vehicle and zinc dust, and therefore provide the quick-drying properties required for primary rust prevention paints. At least 80% by volume of zinc powder is added to provide anti-rust and anti-corrosion properties, so even though the inorganic resin itself has excellent alkali resistance, if painted immediately after welding, the large amount of zinc contained in the resin will be removed. The disadvantage is that the powder reacts with the alkaline content in and around the welded area, causing blisters on the coating film. In addition, since coatings made of inorganic resins are brittle, they have the disadvantage of being prone to cracking during coating formation, especially on uneven surfaces such as welded parts and their surroundings.
上述の辿す、従来公知の一次防錆塗料には、通常の鋼材
部分には使用でき、でも、溶接部分及びその周辺にも満
足に使用し得るものが全く見当らず、やむを得ず、大型
鋼構造物の建造工程において前記の如き煩雑な除錆作業
を行なっているのが現状である。The conventionally known primary rust-preventing paints mentioned above can be used on ordinary steel parts, but there is no one that can be satisfactorily used on welded parts and their surroundings. The current situation is that the above-mentioned complicated rust removal work is performed during the construction process.
本発明者は、上記現状に鑑み、従来の一次防錆塗料が有
している諸欠点が解消され、しかも優れた防錆乃至防食
性を有する一次防錆塗料又は防食塗料を開発するべく、
鋭意研究した結果、無機質ジンクリッチプライマーにお
いて亜鉛末の配合量を半分以下に減少し且つ特定の屈折
率の無機質顔料を配合することにより溶接部分の検査を
するのに充分な透明性を有する塗膜を形成し得ること、
亜鉛末の配合量が少く且つビヒクルとして無機質樹脂を
配合しているため、溶接直後の溶接部分及びその周辺に
使用した場合にも、塗膜にブリスターが発生したり、高
張力鋼材等が脆性割れを起こす恐れがないこと、上記無
機質顔料を配合したことにより室料の造膜性が改讐され
るので凹凸面に使用しても塗膜ワレが発生しないのみな
らず防錆乃至防食性が低下することもないこと、亜鉛粉
末の配合量が少いのにもかかわらず溶接直後の溶接部分
及びその周辺においては、そこに存在するアルカリ分が
無機質樹脂と亜鉛末との硬化反応の触媒として作用する
ので充分な速乾性を有し、又通常の鋼材部分においても
実用的な速乾性を有すること、並びにこの塗料は、他の
塗料との付着性が良いため、その上に無機若しくは有機
質厚塗防食塗料等のいずれも塗装できること等を見出し
、本発明を完成するに至った。In view of the above-mentioned current situation, the present inventors aimed to develop a primary rust-preventive paint or anti-corrosion paint that eliminates the various drawbacks of conventional primary rust-preventive paints and has excellent rust and corrosion prevention properties.
As a result of extensive research, we have developed a coating film that has sufficient transparency to inspect welded areas by reducing the amount of zinc powder blended in an inorganic zinc-rich primer by more than half and incorporating an inorganic pigment with a specific refractive index. to be able to form;
Since the amount of zinc powder blended is small and inorganic resin is blended as a vehicle, blistering may occur in the coating film and brittle cracking of high-tensile steel materials etc. may occur even when used in and around the welded part immediately after welding. The addition of the above inorganic pigment improves the film-forming properties of the coating material, so even when used on uneven surfaces, not only will the coating film not crack, but the rust and corrosion prevention properties will be reduced. Even though the amount of zinc powder blended is small, the alkali present in the welded area and its surroundings immediately after welding acts as a catalyst for the hardening reaction between the inorganic resin and the zinc powder. This paint has sufficient quick-drying properties, and has practical quick-drying properties even on ordinary steel parts.This paint has good adhesion with other paints, so it can be coated with an inorganic or organic thick coat. The present invention was completed by discovering that it can be coated with any anticorrosive paint.
即ち本発明は、（Ａ）亜鉛末８〜１５容ｔ％、■ン屈折
率１．７以下の無機質顔料ｌｏ〜５ｏ容量％、及び（Ｃ
）無機質樹脂８７〜３５容量％からなる組成物を主成分
とする無機質系防錆塗料に係る。That is, the present invention includes (A) 8 to 15 volume t% of zinc powder, (1) lo to 50 volume % of an inorganic pigment with a refractive index of 1.7 or less, and (C
) The present invention relates to an inorganic rust-preventing paint whose main component is a composition comprising 87 to 35% by volume of an inorganic resin.
本発明における囚亜鉛木としては、平均粒径がＩＯμｍ
程度以下、比重が７．０〜７．８程度のものが好ましく
、特に塗膜をできるだけ透明にし、且つ防錆乃至防食性
を向上させるためには粒径の小さいものほど有オリであ
る。亜鉛末の配合蓋は、囚。The captive zinc wood in the present invention has an average particle size of IO μm.
It is preferable to have a specific gravity of about 7.0 to 7.8. In particular, in order to make the coating film as transparent as possible and to improve the rust prevention and corrosion resistance, the smaller the particle size, the better. Zinc powder combination lid is a prisoner.
（Ｂ）及び（Ｃ）の合計量中に百〜１５容、ｔ％好まし
くは５〜ｌＯ容量％である。１５容量％を越えると塗膜
の防錆乃至防食性能は同上するが、塗膜にブリスターが
発生し易くなり、又透明性が損なわれる。The total amount of (B) and (C) is 100 to 15% by volume, preferably 5 to 10% by volume. If the amount exceeds 15% by volume, the anti-rust and anti-corrosion performance of the coating film will be the same as above, but blisters will easily occur in the coating film and transparency will be impaired.
また、８容量％未満では亜鉛末の絶対量が不足しており
、犠牲陽極作用による防錆効果が急激に低下するので実
用的でない。Further, if it is less than 8% by volume, the absolute amount of zinc powder is insufficient, and the antirust effect due to the sacrificial anode action is rapidly reduced, which is not practical.
また、本発明における（Ｂ）屈折率が１．７以下の無機
質顔料としては、天然マイカ、合成マイカ、タルク等の
鱗片状のもの、ガラスフレーク、ガラスファイバー等の
フレーク状又は繊維状のもの及びシリカ粉末等が好まし
い。上記無機質顔料は、いずれも粒径が小さいものほど
、塗膜の透明性の維持、塗膜のワレ防止及び防錆乃至防
食性の向上のために有利である。具体的には鱗片状のも
のでは厚さ５０＾程度以下、径５μｍ程度以下、ガラス
フレークでは８２５メツシュ通過程度以下で厚さ５μｍ
程度以下、ガラスファイバーでは直径ｌＯμｍ程度以下
、長さ０．５−ｍ以下、及びシリカ粉末では粒径５μｍ
程度以下のものが特に好ましい。また上記以外にも、炭
酸石灰粉、クレー、けい藻土、ホワイトカーボン、沈降
性炭酸マグネシウム、沈降性炭ｅバリウム、石こう、パ
ライト等が使用でき、粒径が小石いものほど好ましい。In the present invention, (B) inorganic pigments with a refractive index of 1.7 or less include scaly pigments such as natural mica, synthetic mica, and talc, flaky or fibrous pigments such as glass flakes and glass fibers, and Silica powder and the like are preferred. The smaller the particle size of the above-mentioned inorganic pigments, the more advantageous it is for maintaining the transparency of the coating film, preventing cracking of the coating film, and improving the antirust and anticorrosion properties. Specifically, for scale-like items, the thickness is about 50^ or less and the diameter is about 5 μm or less, and for glass flakes, it is about 825 mesh or less and the thickness is 5 μm.
For glass fibers, the diameter is less than 10 μm, the length is less than 0.5 m, and for silica powder, the particle size is 5 μm.
Particularly preferred are those below a certain degree. In addition to the above, carbonate lime powder, clay, diatomaceous earth, white carbon, precipitated magnesium carbonate, precipitated barium barium, gypsum, pallite, etc. can be used, and the smaller the particle size, the more preferable it is.
いずれの無機質顔料を用いた場合にも、その屈折率が１
，７以下であることが必要であり、屈折率が１．７より
太きいものを用いると塗膜の透明性が低下する。No matter which inorganic pigment is used, its refractive index is 1.
, 7 or less, and if a refractive index larger than 1.7 is used, the transparency of the coating film will decrease.
上記無機質顔料の配合量は、囚、（Ｂ）及び（Ｃ）の合
計量中１ｃ１０〜５０容Ｘ％好ましくは１５〜８８容量
％である。５ｏ容ｎ％を越えると塗膜の透明性が得られ
ず、ｌＯ容に％未満では造膜性が不安定になり塗膜のワ
レが発生し易く、また防錆乃至防食性能も低下する。The amount of the inorganic pigment blended is 10 to 50% by volume, preferably 15 to 88% by volume, based on the total amount of pigments (B) and (C). If it exceeds 50 n% by volume, transparency of the coating film cannot be obtained, and if it is less than 10% by volume, the film forming property becomes unstable and cracking of the coating film is likely to occur, and the antirust and anticorrosion performance also deteriorates.
また、本発明における（Ｃ）無機質樹脂としては、又は
異なって炭素数１〜５のアルキル基を示し、ｎは１以上
の螢数を示す。）で表わされるアルキルシリケート淫取
シ扱い易く、造膜性が良い点から好ましいが、一般式Ｍ
２０・ＸＳｉＯ２（式中、Ｍはアルカリ金属、Ｎ（ＣＨ
８０Ｈ）４、Ｎ（Ｃ２Ｈ，ＯＨ八、ＨＮ （Ｃ２Ｈ５０
Ｈ）、又ｕ Ｃ（ＮＨ２）２ＮＨを示し、Ｘは１〜８０
を示す。）で表わされるアルカリシリケートも使用可能
であり、本発明の目的に適合する。In addition, the inorganic resin (C) in the present invention or differently represents an alkyl group having 1 to 5 carbon atoms, and n represents a firefly number of 1 or more. ) is preferred because it is easy to handle and has good film-forming properties, but the general formula M
20.XSiO2 (where M is an alkali metal, N(CH
80H)4,N(C2H,OH8,HN(C2H50
H), also represents u C(NH2)2NH, and X is 1 to 80
shows. ) can also be used and is compatible with the purpose of the present invention.
上記の内、アルキルシリケートは、硬化する際にアルコ
ールを発生するため硬化塗膜に無数のボイドを生成し、
このボイドを通じて溶着金属中の水素ガスが容易に放出
されることによって、ブリスターの発生及び鋼材の脆性
割れを防止できるので特に有利である。アルキルシリケ
ートは、例えばアルキルシリケートのオリゴマーに水及
び酸触媒を添・加し、脱アルコールを伴なう加水分解組
合反応によって製造される。無機質樹脂の配合量は、囚
、（Ｂ）及び（Ｃ）の合計量中ｌｌ′ｃ８７〜８５容童
％好ましくは、８５〜５６容蓋％である。Among the above, alkyl silicates generate alcohol when cured, which creates countless voids in the cured coating.
This is particularly advantageous because hydrogen gas in the weld metal can be easily released through these voids, thereby preventing the occurrence of blisters and brittle cracking of the steel material. Alkyl silicate is produced, for example, by adding water and an acid catalyst to an alkyl silicate oligomer, and performing a combined hydrolysis reaction accompanied by dealcoholization. The blending amount of the inorganic resin is 87 to 85%, preferably 85 to 56%, based on the total amount of (B) and (C).
また、本発明の防Ｍ塗料においては、上記各必須成分の
他に、塗膜の耐折り曲げ性や耐衝撃性等を向上させるた
めに、（Ｃ）無機質樹脂と相溶性のある有機質樹脂、例
えばポリビニルブチラール樹脂、エポキシ樹脂、ポリエ
チレン樹脂等を本発明の効果を妨げない範囲で、配合し
ても良い。有機質樹脂を配合する場合の配合量は、通常
（Ｃ）無機質樹脂の７０容量ｚ程度以下であるのが好ま
しい。In addition to the above-mentioned essential components, in the anti-M coating of the present invention, in order to improve the bending resistance and impact resistance of the coating film, (C) an organic resin that is compatible with the inorganic resin, such as Polyvinyl butyral resin, epoxy resin, polyethylene resin, etc. may be blended within the range that does not impede the effects of the present invention. When blending an organic resin, the blending amount is usually preferably about 70 z or less of the inorganic resin (C).
また、本発明の防錆塗料においては、防錆乃至防食性能
を更に向上させるために、モリブデン酸塩、リン酸塩等
の比較的隠ぺい力の小名い防錆顔料を併用しても良い。In addition, in the anticorrosion paint of the present invention, in order to further improve the anticorrosion and anticorrosion performance, antirust pigments with relatively low hiding power, such as molybdates and phosphates, may be used in combination.
併用する場合の配合量は、塗膜の透明性を保持するため
には、通常（３）、（Ｂ）及び（Ｑ成分の合計ｆｉ：Ｖ
Ｃ対して２０容ｊｔ％程度以下であるのが好ましい。In order to maintain the transparency of the coating film, the blending amount when used together is usually the sum of (3), (B) and (Q components fi:V
It is preferable that the content of C is about 20% by volume or less.
また、本発明の防＠塗料においては、この種の塗料に通
常配合されることのある成分、例えばベントナイト、水
添ヒマシ油等のタレ止め剤、分散剤、酸化防止剤等を使
用しても良い。In addition, in the anti-@ paint of the present invention, ingredients that are usually added to this type of paint, such as anti-sagging agents such as bentonite and hydrogenated castor oil, dispersants, and antioxidants, may be used. good.
本発明の防錆塗料は、配合される各成分を、この糧の塗
料に通常使用される溶剤に、写法に使って混合分散させ
ることにより調製する。溶剤としては、■−プロパツー
ル、イソブタノール、エタノール、ｎ−ブタノール、イ
ソブタノール等のアルコール系ｉ媒、キシレン、トルエ
ン等の炭化水素系溶剤、メチルセロンルブ、セロソルブ
、ブチルセロソルブ、ジオキサン、アセト／等を挙げる
ことができ、これらの一種を又は二ｄ以上を混合して用
いる。又、無機質樹脂としてアルカリシリケートを用い
たときは、溶剤として上水を併用又は単独使用する。溶
剤の使用量は、％Ｖｃ限定されないが、通常塗装時の塗
料全体の４０〜８５容量％程度が適当である。The anticorrosive paint of the present invention is prepared by mixing and dispersing each component in a solvent commonly used for this type of paint using a copying method. Examples of solvents include alcoholic solvents such as -propanol, isobutanol, ethanol, n-butanol, and isobutanol, hydrocarbon solvents such as xylene and toluene, methylceronelube, cellosolve, butylcellosolve, dioxane, acetate, etc. One type or a mixture of two or more of these can be used. Moreover, when an alkali silicate is used as the inorganic resin, tap water is used together or alone as a solvent. The amount of solvent to be used is not limited to %Vc, but it is usually appropriate to use about 40 to 85% by volume of the entire paint during coating.
本発明の防錆塗料は、通常公知の方法、例えばエアレス
スプレー、エアスプレー、ハケ、ローラー等の種々の方
法により塗装することができる。The anticorrosive paint of the present invention can be applied by various commonly known methods, such as airless spraying, air spraying, brushing, and rolling.
その際の塗装膜厚は特に制限されず、任意に選択できる
が、透明乃至半透明な塗膜を形成させるには乾燥塗膜に
もとすいて！５〜２５μｍ程度が好ましく、不透明でも
さしつかえなければ８００μｍ以下が好ましい。The thickness of the coating film at that time is not particularly limited and can be selected arbitrarily, but in order to form a transparent or semi-transparent coating film, it is necessary to apply it to the dry coating film! The thickness is preferably about 5 to 25 μm, and if opaque is acceptable, 800 μm or less is preferred.
本発明において、透明乃至半透明な塗膜とは、溶接部分
の検査が容易に行なえる程度の透明性を有していること
であり、例えば塗料をガラス板に乾燥膜厚が２０〜２５
μｍＶＣなるように塗装し、これをＪＩＳ Ｋ ５４０
０（６，２） Ｖ′ｃ準じて試験したときに、穏ペイ力
試験紙の白と黒との境界が少なくともほぼ明確に透視で
きたものをいう。In the present invention, a transparent or semi-transparent coating film is one that has transparency to the extent that the welded part can be easily inspected.
Painted to make it μmVC, JIS K 540
0(6,2) V'c When tested in accordance with the standard, the border between white and black on the low pressure test paper could be seen through at least almost clearly.
本発明の無機質系防錆塗料によれば、以下の如き顕著な
効果が得られる。According to the inorganic anticorrosive paint of the present invention, the following remarkable effects can be obtained.
（１） 透明乃至半透明な塗膜を形成するので溶接部
分の検査が容易に行なえる。(1) A transparent or semi-transparent coating film is formed, making it easy to inspect the welded area.
（２）亜鉛末の配合量が少く且つビヒクルとして無機質
樹脂を配合しているため耐アルカリ性が一段と向上して
いるので、溶接直後の溶接部分及びその周辺に使用した
場合にも、塗膜にブリスターが全く発生しない。(2) Because the amount of zinc powder is small and the inorganic resin is used as a vehicle, the alkali resistance is further improved, so even when used on and around the welded part immediately after welding, it will cause blisters in the coating film. does not occur at all.
（８）無機質樹脂を配合しているので、高張力鋼材等の
溶接部分が脆性割れを起こす恐れがない。(8) Since it contains an inorganic resin, there is no risk of brittle cracking in welded parts of high-strength steel, etc.
（４）％定の無機質顔料を配合したことにより、塗膜の
透明性を損うことなく、造膜性が改善されるので、溶接
部分の様な凹凸面に使用しても塗膜ワレが発生せず、又
防錆乃至防食性能が優れている。(4) By incorporating a certain percentage of inorganic pigments, film-forming properties are improved without impairing the transparency of the paint film, so even when used on uneven surfaces such as welded parts, the paint film does not crack. It does not occur and has excellent anti-rust and anti-corrosion performance.
（５）溶接直後の溶接部分及びその周辺において、充分
な速乾性を有し、又通常の鋼材部分においても実用的な
速乾性を有する。(5) It has sufficient quick-drying properties in the welded part and its surroundings immediately after welding, and has practical quick-drying properties even in ordinary steel parts.
（６）他の塗料との付着性が良いので、無機若しくは有
機質厚塗塗料、上塗塗料等のいずれも上塗りできる。(6) Since it has good adhesion with other paints, it can be overcoated with inorganic or organic thick paints, top coat paints, etc.
本発明の無機質系防錆塗料は、溶接、溶断直後（７２時
間以内、特に２４時間以西）のその部分及びその周辺に
塗装することが好ましいが、それ以外の部分、例えば溶
断、溶接前の鋼材表面に塗装する所謂−次防錆塗料とし
ても使用できる。さらに、本発明の該塗料による塗膜は
、上記の如き優れた諸性能を有しているので、該塗膜上
に防食塗料を塗布することなく、上塗塗料を直接塗装し
ても差し支えない。また、高張力鋼材（破断強度５０
ｋｆ／ｍｆｉ 以上）の溶接部分及びその周辺に塗装す
ることが最も好ましい。The inorganic rust-preventing paint of the present invention is preferably applied to the part immediately after welding or fusing (within 72 hours, especially after 24 hours) and its surroundings, but other parts, such as steel materials before fusing or welding. It can also be used as a so-called anti-corrosion paint applied to the surface. Furthermore, since the coating film made of the paint of the present invention has the above-mentioned excellent properties, it is possible to directly apply a top coat onto the coating film without applying an anticorrosive paint. In addition, high-tensile steel materials (breaking strength 50
It is most preferable to paint the welded parts and their surroundings (kf/mfi or higher).
以下、製造例、実施例及び比較例を挙げて本発明を更に
具体的に説明する。Hereinafter, the present invention will be explained in more detail with reference to Production Examples, Examples, and Comparative Examples.
■ 無機員樹脂溶液の製造例
製造例１
［−エチルシリケート−４０」（日本コルコート社１）
５００Ｐが溶解している６００ｆのイングロパノールの
浴液中Ｋ Ｏ，５Ｎ塩酸７ｆを撹拌しながら徐々に滴下
する。滴下終了后、更に蒸留水８０１を撹拌しながら徐
々に滴下する。■ Production example of inorganic resin solution Production example 1 [-Ethyl silicate-40] (Nippon Colcoat Co., Ltd. 1)
In a bath solution of 600f of ingropanol in which 500P is dissolved, 7f of 5N hydrochloric acid is gradually added dropwise while stirring. After the dropping is completed, distilled water 801 is gradually added dropwise while stirring.
滴下終了后、８〜３．５時間、８５±ｌ’ｃの温度に保
ちながら脱アルコールによる縮合反応を行なわしめ、不
揮発固形分８０重蛍％のエチルシリケート樹脂液（Ｉ）
を得た。After the completion of the dropping, a condensation reaction by dealcoholization was carried out while maintaining the temperature at 85±l'c for 8 to 3.5 hours to obtain an ethyl silicate resin liquid (I) with a non-volatile solid content of 80%.
I got it.
製造例２
［エテルシリケート−４０Ｊ５００ｙが溶解している６
００ｙのイングロバノールの溶液中にＩＮ硫酸８ｇを撹
拌しながら徐々に滴下する。Production Example 2 [Ethersilicate-40J500y is dissolved 6]
8 g of IN sulfuric acid is gradually added dropwise to the solution of 00y ingbanol while stirring.
滴下終了后、更に蒸留水５（ｉｇを撹拌しながら徐々に
滴下する一滴下終了后８〜８．５時間、８５±１’Ｃの
温度に保ちながら脱アルコールによる縮合反応を行なわ
しめ、不揮発固形分２７Ｍ童％のエテル・シリケートの
樹脂液（Ｗを得た。After the dropwise addition, 5 drops of distilled water (i.g., was gradually added while stirring) After the completion of the dropwise addition, a condensation reaction by dealcoholization was carried out while keeping the temperature at 85±1'C for 8 to 8.5 hours to form a non-volatile solid. A resin solution of ether silicate (W) having a concentration of 27M% was obtained.
■ 実施例１〜ｌＯ及び比較例１〜７
第１表に示した配合量（重量部）の各成分をペイントミ
キサーで混合分散せしめて、本発明及び比較の防錆塗料
を調製した。尚、第１表の各成分の性状を第２表に示し
た。(2) Examples 1 to 1O and Comparative Examples 1 to 7 Anticorrosive paints of the present invention and comparisons were prepared by mixing and dispersing each component in the amounts (parts by weight) shown in Table 1 using a paint mixer. The properties of each component in Table 1 are shown in Table 2.
−３９′
第２表
比較例５
ポリビニルブチラール樹脂、無水クロム酸及びリン酸を
主成分とする半透明な塗膜を形成する一次防錆塗料（ウ
ォッシュプライマー）。-39' Table 2 Comparative Example 5 Primary anticorrosive paint (wash primer) that forms a translucent coating film containing polyvinyl butyral resin, chromic anhydride, and phosphoric acid as main components.
比較例６
製造例１で得たエチルシリケート樹脂液（Ｉ）に亜鉛末
を、不揮発固形分中７０谷菫％になる様に配合した無機
質ジンクリッチプライマー。Comparative Example 6 An inorganic zinc-rich primer in which zinc powder was blended with the ethyl silicate resin liquid (I) obtained in Production Example 1 so that the amount of zinc powder was 70% in the non-volatile solid content.
托較例７
ポリビニルブチラール樹脂、ジンククロメートおよびリ
ン酸を主成分とする一次防錆塗料（ウォッシュプライマ
ー）。Comparative Example 7 A primary antirust paint (wash primer) containing polyvinyl butyral resin, zinc chromate, and phosphoric acid as main components.
■ 性能試験結果
上記実施例及び比較例で得た防錆塗料を、ショツトブラ
スト高張力鋼板及び該鋼板に下記方法で溶接と一ドを溶
９６７ した表面に、錆が発生しないうちに乾燥膜厚が
２０〜２５μｆｌ＋になるようにエアスグレーにより塗
装し、屋内で７日間乾燥せしめた塗板について各棟の性
能試験を行なった。■Performance test results The anti-rust paints obtained in the above Examples and Comparative Examples were applied to shot-blasted high-tensile steel plates and to the surfaces of the steel plates welded and melted in the following manner. A performance test was conducted for each building on the coated board, which was painted with Airs Gray so that it had a value of 20 to 25 μfl+ and dried indoors for 7 days.
尚、上記浴接ビードの浴着方法は次の辿りである。The bath welding method for the bath welding bead is as follows.
ショツトブラスト高張力鋼板に溶接棒（神戸製鋼社製１
’−ＬＴＢ−６２ｊ ）を用い、該鋼板表面に溶接ピー
ド（巾１０〜１５ ｍｍ、高−Ｊ５〜８ｍ−）を浴着さ
せ、次いでビード及びその周辺に付着しているスラグや
スパッタはワイヤブラシで取り除き、周辺に付着したヒ
ユーム粉もハケで除去した。溶着表面と溶着近傍部のｐ
Ｉ（はｌＯ〜１２であった。Welding rod (manufactured by Kobe Steel, Ltd. 1) on shot-blasted high-tensile steel plate
A welding bead (width 10 to 15 mm, height J5 to 8 m) was deposited on the surface of the steel plate using a welding machine (LTB-62j), and then the slag and spatter adhering to the bead and its surroundings were removed using a wire brush. The humid powder adhering to the surrounding area was also removed with a brush. p of the welding surface and the vicinity of the welding
I(was lO~12.
塗膜性能試験結果は第８表及び第４表に示した通りであ
り、表中の「鋼板」とは上記ショツトブラスト処理した
鋼板に塗装した塗膜についての性能であり、また「溶接
部」とは溶接した表面に塗装した塗膜についての結果で
ある。第８表及び第４表における性能試験方法は次の通
りである。The coating film performance test results are shown in Tables 8 and 4. In the tables, "steel plate" refers to the performance of the coating film applied to the above-mentioned shot blasted steel plate, and "welded area" These are the results for the coating film applied to the welded surface. The performance test methods in Tables 8 and 4 are as follows.
（※ｌ）透明性：白地と黒地とに塗り分けた隠ぺい力試
験紙に乾燥膜厚が２０μｍＶｃなる様に塗装し、屋内で
７日間乾燥させ、塗膜を透して白地と黒地との境界が透
視できるかどうかについて目視判定した。◎は境界が明
確に透視できたことを示し、×は殆ど若しくは全く透視
できなかったことを示す。(*l) Transparency: Paint the white and black hiding power test paper so that the dry film thickness is 20μmVc, dry it indoors for 7 days, and see the boundary between the white and black surfaces through the paint film. A visual judgment was made to determine whether or not it could be seen through. ◎ indicates that the boundary was clearly visible, and × indicates that it was hardly or not visible at all.
（※２）はくる防食性：塗板を清水市駒越海岸で、南面
４５°で８ケ月間ばくろしたのちの塗面を観察した結果
である。◎は塗膜に異常が全く認められないことを、○
は塗面の約１０％未満の面積に錆の発生が認められたこ
とを、Δは塗面の約１０％以上の面積に錆の発生が認め
られたことを示す。×は５０％以上の面積に錆の発生が
認められたことを示す。(*2) Corrosion resistance of the coating: This is the result of observing the painted surface after exposing the coated plate to the south at a 45° angle for 8 months at Komagoe Beach in Shimizu City. ◎ indicates that no abnormality is observed in the coating film, ○
Δ indicates that rust was observed on an area of less than about 10% of the painted surface, and Δ indicates that rust was observed on an area of about 10% or more of the painted surface. × indicates that rust was observed in 50% or more of the area.
（※３）付着性：塗膜ｉＣ１ｍｍ巾で１００個のゴバノ
目をカミソリで素地に達する様に作り、その表面に粘着
セロハノテープを貼りつけ、それを急激にはがしたあと
のゴバン目における塗膜の残存数を調べた結果である。(*3) Adhesion: A coating film with a width of 1 mm is made with 100 goblets using a razor, and adhesive cellophane tape is pasted on the surface of the coating, which is then rapidly peeled off. This is the result of investigating the remaining number of .
（×４）耐衝撃性：デュポン式耐衝撃試験器を用い、重
さ５００ｆ、曲率半径１／２インチのおもりを塗面に垂
直方向に落下せしめ、塗膜にワレ、ヒビ等の異常が発生
しない最大落下距離（Ｃｆ１％）を・調べだ結果である
。(x4) Impact resistance: Using a DuPont impact tester, a weight of 500 f and a radius of curvature of 1/2 inch was dropped perpendicularly to the paint surface, and abnormalities such as cracks and cracks occurred in the paint film. This is the result of investigating the maximum fall distance (Cf1%).
（※５）耐塩水噴霧性： ＪＩＳ−Ｋ ５４００ 、７
．８において定められた方法に準じて７日間試験を行な
い、塗面を観察した結果である。◎は塗面に全く異常が
認められなかったことを、○は塗面の８０％未満の面積
に錆又はブリスターの発生があったことを、Δは塗面の
８０％以上の面積に錆又はブリスターの発生があったこ
とを示す。(*5) Salt water spray resistance: JIS-K 5400, 7
．． The test was conducted for 7 days according to the method specified in Section 8, and the results were obtained by observing the painted surface. ◎ indicates that no abnormality was observed on the painted surface, ○ indicates that rust or blisters occurred on less than 80% of the painted surface, and Δ indicates that rust or blisters occurred on more than 80% of the painted surface. Indicates that a blister has occurred.
Ｘは塗面の５０％以上の面積に錆又はブリスターの発生
があったことを示す。X indicates that rust or blisters were generated on 50% or more of the painted surface.
（※６）耐塩水性： ＪＩＳ−Ｋ ５４００．７．６に
おいて定められた方法に準じて、塗板を７日間浸漬し、
引上げてから室温で２時間乾燥させたのち、上記（Ｘ８
）と同様にして付着性試験を行なった。(*6) Salt water resistance: The coated plate was immersed for 7 days according to the method specified in JIS-K 5400.7.6,
After pulling it up and drying it at room temperature for 2 hours,
) An adhesion test was carried out in the same manner as in (2009).
（※７）浸海防食性二上記塗板に更に第４表に示した防
食塗料を塗装し、次いで素地に達するように塗膜をクロ
スカットし、その交点に亜鉛を溶着させたものを清水市
折戸湾に６ケ月間浸海した（を気防食併用）。塗板を引
き上げ、溶接部のブリスターの発生状況を調べ、カット
部からの塗膜のワレおよび付層不良などの巾を調べめら
れなかったことを、○は巾１〜３ ｍｍの付着劣化があ
ったことを、Δはブリスターの発生が少々あったこと、
あるいはカット部から巾８ｍｍ以上の劣化が認められた
ことを、×は人前のブリスターの発生があったことある
いは巾７ ｍｍ以上の劣化が認められたことを示す。尚
、上塗りした防食産科１１−ｊ：現在市販されているも
ののうち最も多く用いられている塗料であり、その塗装
膜はそれぞれの最適範囲に調整した。(*7) Seawater Corrosion Resistance 2 The above coated plate is further coated with the anti-corrosion paint shown in Table 4, and then the paint film is cross-cut to reach the base material, and zinc is welded to the intersection points. Orito, Shimizu City Submerged in the bay for 6 months (combined with air protection). The coated plate was pulled up and the occurrence of blisters in the welded area was examined. ○ indicates that the width of cracks in the coating film from the cut area and poor adhesion could not be investigated. However, Δ had some blistering.
Alternatively, deterioration of 8 mm or more in width was observed from the cut part, and × indicates that blisters were generated in public or deterioration of 7 mm or more in width was observed. In addition, the top-coated anti-corrosion obstetrics 11-j: This is the most commonly used paint among those currently on the market, and the coating film was adjusted to the optimum range for each.
Claims (1)
以下の無機質顔料ｌＯ〜５０容ｉ％、及び（Ｃ）無機質
樹脂８７〜８５容ｉ％からなる組成物を主成分とする無
機質系防錆塗料。■ (5) Zinc dust 8-15% by volume, (6) Refractive index 1.7
An inorganic rust-preventing paint whose main component is a composition consisting of the following inorganic pigment 10 to 50 vol. i% and (C) an inorganic resin 87 to 85 vol. i%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22811282A JPS59122556A (en) | 1982-12-28 | 1982-12-28 | Inorganic corrosion-protection paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22811282A JPS59122556A (en) | 1982-12-28 | 1982-12-28 | Inorganic corrosion-protection paint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59122556A true JPS59122556A (en) | 1984-07-16 |
Family
ID=16871389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22811282A Pending JPS59122556A (en) | 1982-12-28 | 1982-12-28 | Inorganic corrosion-protection paint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59122556A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010073455A (en) * | 2000-01-15 | 2001-08-01 | 송영수 | Shop Primer for Steel |
| JP2002114944A (en) * | 2000-10-04 | 2002-04-16 | Shinto Paint Co Ltd | Primary anticorrosive paint composition |
| WO2016047480A1 (en) * | 2014-09-26 | 2016-03-31 | 中国塗料株式会社 | Rust-inhibiting paint composition and application for same |
| WO2016047479A1 (en) * | 2014-09-26 | 2016-03-31 | 中国塗料株式会社 | Rust-inhibiting paint composition and application for same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4830454A (en) * | 1971-08-23 | 1973-04-21 |
-
1982
- 1982-12-28 JP JP22811282A patent/JPS59122556A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4830454A (en) * | 1971-08-23 | 1973-04-21 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010073455A (en) * | 2000-01-15 | 2001-08-01 | 송영수 | Shop Primer for Steel |
| JP2002114944A (en) * | 2000-10-04 | 2002-04-16 | Shinto Paint Co Ltd | Primary anticorrosive paint composition |
| WO2016047480A1 (en) * | 2014-09-26 | 2016-03-31 | 中国塗料株式会社 | Rust-inhibiting paint composition and application for same |
| WO2016047479A1 (en) * | 2014-09-26 | 2016-03-31 | 中国塗料株式会社 | Rust-inhibiting paint composition and application for same |
| CN106715621A (en) * | 2014-09-26 | 2017-05-24 | 中国涂料株式会社 | Rust-inhibiting paint composition and application for same |
| JPWO2016047479A1 (en) * | 2014-09-26 | 2017-06-15 | 中国塗料株式会社 | Rust preventive paint composition and use thereof |
| JPWO2016047480A1 (en) * | 2014-09-26 | 2017-06-15 | 中国塗料株式会社 | Rust preventive paint composition and use thereof |
| CN106715621B (en) * | 2014-09-26 | 2020-03-03 | 中国涂料株式会社 | Antirust coating composition and use thereof |
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