JPS5817871A - Painting method - Google Patents

Painting method

Info

Publication number
JPS5817871A
JPS5817871A JP11532581A JP11532581A JPS5817871A JP S5817871 A JPS5817871 A JP S5817871A JP 11532581 A JP11532581 A JP 11532581A JP 11532581 A JP11532581 A JP 11532581A JP S5817871 A JPS5817871 A JP S5817871A
Authority
JP
Japan
Prior art keywords
base material
metal
site
metal base
piece
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
Application number
JP11532581A
Other languages
Japanese (ja)
Inventor
Yoshio Yakushiji
薬師寺 善雄
Ikuhisa Hamada
幾久 浜田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP11532581A priority Critical patent/JPS5817871A/en
Publication of JPS5817871A publication Critical patent/JPS5817871A/en
Pending legal-status Critical Current

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  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

PURPOSE:To prevent the exfoliation of paint fims on a metallic base material by mounting a metallic plate which is given roughness in the on-site painting positions on the surface of the metallic base material where it is not possible to apply necessary roughness in factories. CONSTITUTION:Two pieces of metallic base materials 1 which are formed with anchor patterns on the surfaces and are applied with paint films 2 in a factory are butt welded on site, whereby on-site weld zones 9 are formed. The required small area 4 including the weld zones 9 on the surface of the base materials is sanded on site. Anchor patterns 8 are formed on one side of a metallic piece 5 of about 0.2-0.5mm. thickness in a suitable area, the plane side of the piece 5 is pressed along the sanded surface 4 of the materials 1 and both materials are spot welded in a number of positions 6, by which the materials are made into one body. A paint film is coated on the anchor patterns 8 on the surface of the piece 5, whereby a paint film 3 applied on site is formed, and is adhered to the paint film 2 formed in the factory.

Description

【発明の詳細な説明】 本発明は、主として腐食性流体を取り扱う装置の缶体や
配管等の金属基地材に対する塗装方法に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a coating method for metal base materials such as cans and piping of equipment that handles corrosive fluids.

通常の金属基地材料に対して強い腐食性を示す環境を取
り扱うもの、例えば海水淡水化装置の蒸発室、氷室、熱
交換器等では、防食のだめの塗装が行われることが多い
。塗装においては、塗料の系統、成分等だけでなく、下
地処理も重要な因子であることが一般的に認識されてい
るが、特に上記の装置のような重防食塗装が必要なもの
においては、下地処理の良否が塗膜の性能を左右する。
Corrosion-preventing paint is often applied to equipment that handles environments that are highly corrosive to ordinary metal base materials, such as evaporation chambers, ice chambers, and heat exchangers of seawater desalination equipment. In painting, it is generally recognized that not only the system and components of the paint, but also the surface treatment are important factors, but especially for equipment that requires heavy anti-corrosion coating, such as the equipment mentioned above, The quality of the surface treatment determines the performance of the paint film.

ここで問題としている塗膜の性能とは、耐はく離性や耐
ふくれ性等である。
The performance of the coating film in question here includes peeling resistance, blistering resistance, and the like.

塗膜のはく離やふくれを防止するため、一般には金属基
地材の表面に適度な粗度をもたせた粗面(アンカパタ/
とも呼ばれる)として塗装、塗膜と金属基地材との接着
力を高めるようにする。粗度をもたせて粗面にする手段
は、通常サンドあるいはグリッドによるブラスト処理で
ある。ブラスト処理および塗装は、通常は装置を製作す
る工場で行われるが、大型の装置の場合は、工場で全て
の塗装ができないことが多く、装置を設置する場所、い
わゆる現地で組み立てた後に塗装を行う箇所が発生する
。このような現地施工箇所においても所定の性能を得る
ためには、プラスト処理を行ってから塗装する必要があ
るが、構造が複雑々箇所や、部分的な補修塗装を行う場
合に対しては、現地で施工する場合は、一般にハンディ
ブラスト機を用いるので、プラスト処理が不可能である
とか、または完全には行えない等の問題があり、現地で
施工した部分は、事後の装置使用中に、しばしばはく離
やふくれを生じることが知られている。
In order to prevent peeling and blistering of the paint film, a rough surface (anchor pattern/
(also known as paint) to increase the adhesion between the paint film and the metal base material. The means for imparting roughness to the surface is usually sand blasting or grid blasting. Blasting and painting are usually done at the factory where the equipment is manufactured, but in the case of large equipment, it is often not possible to do all the painting at the factory, so the painting is done at the place where the equipment is installed, so-called on-site, after it has been assembled. There will be places to do this. In order to obtain the specified performance even in such on-site construction areas, it is necessary to perform a plastic treatment before painting, but for areas with complex structures or when performing partial repair painting, When construction is carried out on-site, a hand-held blasting machine is generally used, so there are problems such as the blast treatment being impossible or not being able to be completed completely. It is known to often cause peeling and blistering.

このよう々問題を解決するため、金属片に繊維を巻き、
これを塗装しようとする金属基地材表面にそわせ、金属
片を金属基地材表面とを所々溶接して、両者を一体とし
、この上に塗装する方法も考えられている。しかし、こ
の方法においては、金属片に巻かれた繊維が粗面の代用
となるため、塗装の接着性は改善されるが、現地施工箇
所が多い場合やまたは大きい場合には、多大な労力と時
間が必要となり、さらには金属片の間の部分の接着力は
何等改善され々いといった問題点のあるものであった。
In order to solve these problems, we wrapped fibers around a piece of metal.
A method has also been considered in which the metal pieces are aligned with the surface of the metal base material to be coated, the metal pieces are welded to the surface of the metal base material in places, the two are integrated, and then the two are coated. However, in this method, the fibers wrapped around the metal strips serve as a substitute for the rough surface, which improves the adhesion of the paint, but requires a lot of labor when there are many or large on-site construction sites. This method requires time, and furthermore, there are problems in that the adhesive strength between the metal pieces cannot be improved in any way.

本発明の目的は、上記した従来技術の欠点をなくし、工
場で必要な粗度を与えることのでき々い金属基地材表面
の現地塗装箇所や塗膜補修箇所における塗膜と金属基地
材表面との接着力を向上させ、塗膜のはく離やふくれを
防止することの可能な高性能塗膜の塗装方法を提供する
たある。
The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to improve the coating film and metal base material surface at on-site painting locations and coating repair locations where it is difficult to provide the required roughness in a factory. To provide a high-performance paint film coating method that can improve the adhesive strength of paint films and prevent peeling and blistering of the paint film.

上記の目的のだめの本発明の塗装方法は、好ましくは0
.2〜3.5mm程度の肉厚の金属片の表面にアンカパ
タンをなす粗度を与えるように金属または非金属の溶射
処理を行い、その金属片の粗度を与えられた面の反対側
を、塗装を施そうとする金属基地材の表面に沿わせて載
置し、好ましくは点溶接によるかまたは接着剤によるか
によって、前記の金属片を前記の金属基地材の表面に取
り付けて前記の金属基地材の表面を前記の金属片で被覆
し、取り付けた金属片の粗度を与えた表面上に塗装を施
して金属基地材を塗膜で覆うようにするものである。
The coating method of the present invention for the purpose described above is preferably 0
.. The surface of a metal piece with a thickness of approximately 2 to 3.5 mm is thermally sprayed with a metal or non-metal to give it a roughness that forms an anchor pattern, and the opposite side of the metal piece to the roughened surface is The metal piece is placed along the surface of the metal base material to be coated, and the metal piece is attached to the surface of the metal base material, preferably by spot welding or by adhesive. The surface of the base material is coated with the metal piece, and the roughened surface of the attached metal piece is coated to cover the metal base material with a coating film.

本発明における金属片としては、肉厚が、凡そ0.2〜
Q、5mmの範囲である板状のものを用いるのが好まし
い。その理由は、Q、2mmより薄い場合は溶射工程に
おいて金属片が変形するおそれがあり、またQ、 5 
mmよりも厚い場合は平滑でない金属基地材表面に金属
片をそわせることが難かしく、かつ、現地で利用される
よりなノ・ノデイな小型溶接機で、完全な点溶接を行う
ことができないからである。
The metal piece in the present invention has a wall thickness of about 0.2 to
Q. It is preferable to use a plate-shaped material with a thickness in the range of 5 mm. The reason is that if it is thinner than Q, 2mm, there is a risk that the metal piece will be deformed during the thermal spraying process, and Q, 5
If the thickness is thicker than 1.0 mm, it is difficult to align the metal piece with the surface of the metal base material, which is not smooth, and it is not possible to perform complete spot welding with a small, small-scale welding machine that is used locally. It is from.

本発明における金属片の溶射処理に用いる溶射材として
は、金属片や塗装を施そうとする金属基地材(一般には
軟鋼やステンレス鋼等)と同類のものでも良いが、犠牲
陽極効果をもたせるため卑な電位を示す、アルミニウム
等の金属を用いてもよい。なお、非金属溶射材料として
はセラミック例えばアルミナ等を挙げることができる。
The thermal spraying material used in the thermal spraying treatment of metal pieces in the present invention may be the same as the metal piece or the metal base material to be coated (generally mild steel, stainless steel, etc.), but in order to provide a sacrificial anode effect, A metal such as aluminum, which exhibits a base potential, may also be used. Incidentally, examples of the non-metallic thermal spraying material include ceramics such as alumina.

本発明における溶射方法としては、アーク溶射、ガス溶
射、プラズマ溶射のいずれを用いてもよく、いずれの溶
射方法の場合も、塗装に対して良好なアンカパタンを与
えることができる。
As the thermal spraying method in the present invention, any of arc thermal spraying, gas thermal spraying, and plasma thermal spraying may be used, and any thermal spraying method can provide a good anchor pattern to the coating.

本発明において用いる溶射金属片の大きさは、現地塗装
および補修塗装を行おうとする金属基地材表面の大きさ
に合わせればよく、特に本発明の場合には、被塗装箇所
の形状寸法に合わせて金属片を容易に整形して用いるこ
とが可能である。このことは現地施工部においてしばし
ば経験される形状不連続部の場合に特に有効である。
The size of the sprayed metal pieces used in the present invention may be adjusted to the size of the surface of the metal base material on which on-site painting or repair painting is to be performed.In particular, in the case of the present invention, the size of the sprayed metal pieces used should be adjusted to the size of the surface of the metal base material on which on-site painting and repair painting are to be performed. Metal pieces can be easily shaped and used. This is particularly effective in the case of geometric discontinuities often experienced in on-site construction.

以上に述べたような本発明の塗装方法によれば金属基地
材は現地の状況に応じてその表面に取り付けられた金属
片のアンカパタンの上に塗膜が塗装されろことになるの
7で、塗膜の事後におけるはく離やふくれを発生するこ
と力く、また金属片のアンカパタンは現地でなく、工場
で施工できるとともに、取り付けた金属片表面のアンカ
パタンの広さおよび高さの位置は金属片を取り付けられ
た既設の金属基地材におけるものの近似位置に々るよう
にできるので部分的にアンカパタンの欠如したものとす
ることなく塗膜は金属基地材を一様に被覆し、性能の優
れたものとすることのできる効果のあるものである。
According to the coating method of the present invention as described above, a coating film is applied on the anchor pattern of the metal piece attached to the surface of the metal base material according to the local situation7. This prevents peeling and blistering of the paint film after the fact, and the anchor pattern of the metal piece can be installed at the factory instead of on-site. Since it can be applied to the approximate position of the existing metal base material installed, the coating film can uniformly cover the metal base material without partially missing the anchor pattern, resulting in a coating with excellent performance. It is an effective thing that can be done.

以下に、本発明を一実施例につき、図面を参照して、さ
らに詳細に説明する。
Hereinafter, one embodiment of the present invention will be explained in more detail with reference to the drawings.

この実施例は、金属基地材が工場において表面にアンカ
パタンを形成されて、その上に塗膜を塗装して高性能塗
膜とした2箇の金轡基地材を現地において溶接で継ぎ合
わせた場合の、継ぎ合わせ目における塗装についてのも
のである。
In this example, an anchor pattern is formed on the surface of the metal base material in a factory, and a coating film is applied on top of the metal base material to create a high-performance coating. Two metal base materials are joined together by welding on site. This is about painting at the seams.

第1図は2箇の金属基地材1.1を突き合わせ現地にお
ける現地溶接部9により接続したものに対して、本発明
による塗装を施した場合を示す断面図にして、第2図は
第1図の要部の拡大図である。
Figure 1 is a cross-sectional view showing the case where two metal base materials 1.1 are butted together and connected by an on-site welding part 9, and the coating according to the present invention is applied. It is an enlarged view of the main part of the figure.

本実施例における金属基地材を被覆する性能の優れた塗
膜の塗装処理は次のようになされるものである。
The coating treatment of the coating film having excellent performance for covering the metal base material in this example is carried out as follows.

まず、2箇の金属基地材1.1はそれぞれ工場において
表面にアンカパタンを形成されて、その上に塗膜2.2
を塗装されたものが現地に選ばれて、現地において所要
継ぎ合わせ部を溶接し、現地溶接部9により継ぎ合わせ
る。
First, an anchor pattern is formed on the surface of two metal base materials 1.1 in a factory, and a coating film 2.2 is applied on top of the anchor pattern.
A painted piece is selected at the site, and the required joints are welded at the site, and the seams are joined by the site welding part 9.

次いで、金属基地材の表面に現地塗装を必要とする前記
の現地溶接部9を含む小部分の金属基地材表面4をサン
ダーがけをして、さび等の付着物を除去する。一方、前
記のサンダーかけした部分に対応する所要の塗装部分に
相応した広さを有し厚さが0.2〜0.5 mmである
金属片5の一方の表面に金属溶射または非金属溶射を施
してアンカパタン8(特に、第2図参照)を形成したも
のを注意する。そこで、金属片5の平面の方を、前記の
金属基地材のサンダーかけした表面4に沿わせて押し付
け、金属片5の数ケ所を金属基地材の表面4上に点溶接
箇所6.6、・・・・・・において点溶接する。これに
より金属片5は金属基地材1.1にホり付けられ、両者
は一体化されろ。
Next, a small portion of the surface 4 of the metal base material including the above-mentioned on-site welded portion 9 that requires on-site painting is sanded to remove deposits such as rust. On the other hand, metal spraying or non-metallic spraying is applied to one surface of the metal piece 5, which has a width corresponding to the required coating area corresponding to the sanded area and has a thickness of 0.2 to 0.5 mm. Please be careful when using the method to form the anchor pattern 8 (see especially FIG. 2). Therefore, the flat side of the metal piece 5 is pressed along the sanded surface 4 of the metal base material, and several spots of the metal piece 5 are welded onto the surface 4 of the metal base material at the spot welding points 6.6. Spot welding is carried out at... As a result, the metal piece 5 is glued to the metal base material 1.1, and the two are integrated.

次いで、金属片5の周縁を、接着剤7により金属基地材
1.1上の塗膜に接着する。(第2図参照) このようにして金属片5を固定した後、金属片5の表面
のアンカバタン上に塗膜の塗装作業を行い、現地施工塗
膜6を形成し、その周縁を金属基地材1上に工場で形成
された塗膜2に接着せしめそれらの塗膜の表面をほぼ一
様なものとし、本実施例における塗装を完了する。
The periphery of the metal piece 5 is then glued with adhesive 7 to the coating on the metal base material 1.1. (See Figure 2) After fixing the metal piece 5 in this way, a coating film is applied on the anchor baton on the surface of the metal piece 5 to form an on-site coating film 6, and the periphery of the coating is applied to the metal base material. The coating in this example is completed by adhering to the coating film 2 formed on the coating film 1 at a factory to make the surface of the coating film substantially uniform.

以上のようにして、本実施例における金属片5はその表
面に溶射処理を行ったものであるので、第2図に明瞭に
示されているように、溶射層8の表面は塗装に対して適
度な粗度を有する粗面(アンカパタン)を形成している
ため、この上に塗装した塗膜の接着強度は著しく向上し
たものとなり本金属基地材で構成された構成体の使用中
に膜のはく離を発生することなく、まだ金属片の厚さは
0.2〜Q、5mmの範囲に選択することにより、取り
付は操作中に金属片が変形すること彦く、かつ金属基地
材への点溶接の操作を容易にできるばかりでなく、その
上に塗装した塗膜6の表面は金属基地材1上に工場で塗
装された塗膜2の表面とほぼ同一の表面とすることがで
き、さらには現場施工塗膜6は工場施工塗膜2と実質的
に同一のものとすることができるため、事後におけるふ
くれ等の発生のない高性能のものとすることができるの
である。
As described above, the surface of the metal piece 5 in this embodiment has been thermally sprayed, so as clearly shown in FIG. 2, the surface of the thermally sprayed layer 8 is resistant to painting. Because it forms a rough surface (anchor pattern) with an appropriate degree of roughness, the adhesive strength of the coating film applied thereon is significantly improved, and the film does not form during use of a structure made of this metal base material. By selecting the thickness of the metal piece in the range of 0.2 to Q, 5 mm, the metal piece can be installed without deformation during operation, and without peeling, and without causing any damage to the metal base material. Not only can the spot welding operation be facilitated, but also the surface of the coating film 6 applied thereon can be made almost the same as the surface of the coating film 2 applied on the metal base material 1 at the factory. Furthermore, since the on-site applied coating film 6 can be substantially the same as the factory applied coating film 2, it is possible to obtain a high-performance coating that does not cause blistering or the like after the fact.

上記の実施例により、塗料としてエポキシ系塗料を用い
た場合の本発明の効果を実験室的に試験・した結果をグ
ラフに示したのが第3図である。第6図に示したのは、
下地処理をサンダーかけ、ブラスト処理、アルミニウム
溶射の各々によったものの上に塗膜を施した後、温度こ
う配下浸漬試験(ライニングテスタによる)を行い、所
定の時間経過後の塗膜の接着強度を測定した結果である
FIG. 3 is a graph showing the results of a laboratory test of the effects of the present invention when an epoxy paint is used as the paint according to the above embodiment. Figure 6 shows:
After applying a paint film to the surface treated by sanding, blasting, and aluminum thermal spraying, a temperature gradient immersion test (using a lining tester) was conducted to evaluate the adhesion strength of the paint film after a specified period of time. This is the result of measuring.

第5図かられかるように、す/ダーかけでは短時間のう
ちに接着強度が著しく低下するが、これに比較するとブ
ラスト処理およびアルミニウム溶射処理をしたものは長
時間経過後の接着強度の低下が小であり、特にアルミニ
ウム溶射処理の場合はその効果が一層大である。本発明
によるアンカパタン付与処理を施さなかった場合の現地
塗装施工部は、第6図のサンダーかけに相当することか
ら、現地塗装施工に対しては本発明が極めて有効である
ことがわかる。
As can be seen from Figure 5, the adhesive strength decreases significantly in a short period of time after being coated with water/dur, but compared to this, the adhesive strength decreases after a long period of time with those treated with blasting and aluminum spraying. is small, and the effect is particularly large in the case of aluminum thermal spraying. The on-site painting area without the anchor pattern application process according to the present invention corresponds to the sanding shown in FIG. 6, which shows that the present invention is extremely effective for on-site painting.

上記の説明に明らかなように、本発明は以上のような構
成であることから、現地塗装施工の場合のように、現地
においては塗装に適した下地処理ができない箇所に対し
ても、塗装に適した粗度のアンカパタンを容易に与える
ことができて、下地処理不良でしばしば問題になる塗膜
のはく離やふくれを確実に防止することを可能にするも
のである。さらに、従来技術におけるように、多大な労
力および時間を要することなく施工できるので、その効
果は極めて大である。
As is clear from the above description, since the present invention has the above-described configuration, it is possible to apply painting even to areas where the groundwork cannot be properly prepared on-site, as in the case of on-site painting. It is possible to easily provide an anchor pattern with a suitable roughness, and it is possible to reliably prevent peeling and blistering of the coating film, which often becomes a problem due to poor surface treatment. Furthermore, since it can be constructed without requiring much labor and time as in the prior art, its effects are extremely large.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例になる塗装方法における塗装
部分の断面図にして、第2図は第1図の要部の拡大図で
ある。 第3図は本発明の一実施例による。塗膜の実験室的試験
結果を示したグラフである。 1・・・金属基地材    2・・・工場施工塗膜3・
・・現地施工塗膜   4・・・金属基地材表面5・・
・金属片      6・・・点溶接部分7・・・接着
剤      8・・・溶射層9・・・現地溶接部 才1− 1’2図
FIG. 1 is a sectional view of a painted part in a coating method according to an embodiment of the present invention, and FIG. 2 is an enlarged view of the main part of FIG. 1. FIG. 3 is according to one embodiment of the present invention. 1 is a graph showing the results of a laboratory test of a coating film. 1... Metal base material 2... Factory applied coating film 3.
...On-site construction coating film 4...Metal base material surface 5...
・Metal piece 6...Spot welded part 7...Adhesive 8...Sprayed layer 9...Field welded part 1-1'2

Claims (3)

【特許請求の範囲】[Claims] (1)、金属または非金属の溶射によシ表面に適当な粗
度を与えた薄い肉厚の金属片の粗度を与えられた面の反
対側を、塗装を施そうとする金属基地材の表面に沿わせ
て載置し、前記の金属片を前記の金属基地材に取り付け
て前記の金属基地材を前記の金属片で被覆し、取シ付け
た前記の金属片の粗度を与えた表面上に塗、装を行って
金属基地材を塗膜で覆うことを特徴とする塗装方法。
(1) Metal base material to be painted on the opposite side of the roughened surface of a thin metal piece whose surface has been given an appropriate roughness by thermal spraying of metal or non-metal. The metal piece is placed along the surface of the metal base material, the metal base material is covered with the metal piece, and the roughness of the attached metal piece is imparted. A coating method characterized by coating and coating the metal base material with a coating film.
(2)  前記の金属片は肉厚が0.2〜3.5mm程
度の範囲の板状のものである特許請求の範囲第1項記載
の塗装方法。
(2) The coating method according to claim 1, wherein the metal piece is plate-shaped with a wall thickness in a range of about 0.2 to 3.5 mm.
(3)  前記の金属片を前記の金属基地材に取り付け
るのは点溶接によるか、または接着剤によるかである特
許請求の範囲第1項記載の塗装方法。
(3) The coating method according to claim 1, wherein the metal piece is attached to the metal base material by spot welding or by adhesive.
JP11532581A 1981-07-24 1981-07-24 Painting method Pending JPS5817871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11532581A JPS5817871A (en) 1981-07-24 1981-07-24 Painting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11532581A JPS5817871A (en) 1981-07-24 1981-07-24 Painting method

Publications (1)

Publication Number Publication Date
JPS5817871A true JPS5817871A (en) 1983-02-02

Family

ID=14659773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11532581A Pending JPS5817871A (en) 1981-07-24 1981-07-24 Painting method

Country Status (1)

Country Link
JP (1) JPS5817871A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233974A (en) * 1985-08-06 1987-02-13 鹿島建設株式会社 Ultrahigh building structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6233974A (en) * 1985-08-06 1987-02-13 鹿島建設株式会社 Ultrahigh building structure
JPH0463947B2 (en) * 1985-08-06 1992-10-13 Kajima Corp

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