JPS61235551A - Coating method for surface of ocean structural member - Google Patents
Coating method for surface of ocean structural memberInfo
- Publication number
- JPS61235551A JPS61235551A JP60078206A JP7820685A JPS61235551A JP S61235551 A JPS61235551 A JP S61235551A JP 60078206 A JP60078206 A JP 60078206A JP 7820685 A JP7820685 A JP 7820685A JP S61235551 A JPS61235551 A JP S61235551A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- alloy
- corrosion resistance
- sprayed
- thermally
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 15
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 230000007797 corrosion Effects 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000010405 anode material Substances 0.000 claims abstract description 8
- 239000011810 insulating material Substances 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 70
- 239000011247 coating layer Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 23
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000003373 anti-fouling effect Effects 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229910000711 U alloy Inorganic materials 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 229910002482 Cu–Ni Inorganic materials 0.000 abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052718 tin Inorganic materials 0.000 abstract description 2
- 229910007570 Zn-Al Inorganic materials 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 230000003449 preventive effect Effects 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 238000007751 thermal spraying Methods 0.000 description 12
- 238000007789 sealing Methods 0.000 description 9
- 239000000956 alloy Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910018054 Ni-Cu Inorganic materials 0.000 description 1
- 229910018481 Ni—Cu Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
Landscapes
- Coating By Spraying Or Casting (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、船舶の船体外板等の海洋構造部材の表面被覆
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for coating the surface of a marine structural member such as a hull outer panel of a ship.
（従来の技術）
船舶の船体外板等の海洋構造部材に対して、耐食性、防
汚性（海生物の付着防止性）の要望が高く、かかる要望
に対して、海洋構造部材（以下、単に部材という。）の
外面にＣｕ−Ｎｉ合金１等の耐食性・防汚性に優れたＣ
ｕ合金の被覆層を形成する手・段が採られている。かか
る手段として、Ｃｕ合金薄板を接着剤にて部材に貼着す
る方法、溶射にて部材外面に被覆層を形成する方法、工
場製造段階で部材外面に所期の被覆層を圧延接合する方
法等がある。この中で、溶射による方法は、接着法に対
して接合性が良好であり、また圧延接合する方法に対し
て曲面への適用及び現場施工に優れ、利用度の高い手段
である。(Prior art) There is a high demand for corrosion resistance and antifouling properties (preventing the adhesion of marine life) to marine structural members such as the outer panels of ship hulls. The outer surface of the material is coated with a material such as Cu-Ni alloy 1, which has excellent corrosion resistance and antifouling properties.
Measures have been taken to form a coating layer of U alloy. Examples of such methods include a method of attaching a Cu alloy thin plate to a member with an adhesive, a method of forming a coating layer on the outer surface of the member by thermal spraying, a method of rolling and bonding a desired coating layer to the outer surface of the member at the factory manufacturing stage, etc. There is. Among these, the thermal spraying method has better bonding properties than the adhesive method, and is superior in application to curved surfaces and on-site construction compared to the rolling bonding method, and is a highly utilized method.
（発明が解決しようとする問題点）
しかし、溶射によって部材外面に形成された溶射層は水
密性に欠き、溶射層中の微細な空隙を通して部材表面に
浸入してきた海水により部材（主として鋼板）表面に局
部電池が形成され腐食を早める。また、溶射は表面平滑
性に欠くので、船体外板に溶射層を形成゛した場合では
、航海時の走行抵抗（水抵抗）の増大を招来し、船舶の
高速化、省エネルギー化に反する結果となる。更にまた
、水抵抗の増大により、溶射層に部分的な欠落や剥離が
生じ易くなり、−担欠陥が生じるとその部分が海水に直
に接することになり、部材の腐食が急速に進むことにな
る。(Problem to be Solved by the Invention) However, the sprayed layer formed on the outer surface of the component by thermal spraying lacks watertightness, and seawater that has entered the component surface through the minute voids in the sprayed layer can cause the surface of the component (mainly steel plate) to deteriorate. local batteries are formed and accelerate corrosion. In addition, thermal spraying lacks surface smoothness, so if a thermal spray layer is formed on the outer skin of a ship, it will increase the running resistance (water resistance) during navigation, which is contrary to the goal of speeding up ships and saving energy. Become. Furthermore, due to increased water resistance, the sprayed layer is more likely to be partially chipped or peeled off, and if a defect occurs, that part will come into direct contact with seawater, causing rapid corrosion of the component. Become.
本発明はかかる問題点に鑑みなされたものであって、曲
面部材や現場施工も容易でかつ水密性及び表面平滑性に
優れた海洋構造部材の表面被覆方法を提供することを目
的とする。The present invention has been made in view of these problems, and it is an object of the present invention to provide a surface coating method for curved members and marine structural members that can be easily applied on-site and has excellent watertightness and surface smoothness.
（問題点を解決するための手段）
上記目的を達成するための本発明の特徴とするところは
、部材に絶縁材若しくは犠牲陽極材を溶射し、得られた
中間溶射層を加熱手段により溶融して無孔質の中間層を
形成し、該中間層の上に耐食性及び防汚性の優れたＣｕ
合金被覆材を溶射し、得られた外部溶射層を加熱手段に
より溶融して無孔質かつ表面平滑な外部被覆層を形成す
る点にある。(Means for Solving the Problems) The present invention is characterized by spraying an insulating material or a sacrificial anode material onto a member and melting the obtained intermediate sprayed layer by heating means. A non-porous intermediate layer is formed on the intermediate layer, and Cu having excellent corrosion resistance and antifouling properties is coated on the intermediate layer.
The method consists of thermally spraying an alloy coating material and melting the resulting external thermally sprayed layer using a heating means to form a non-porous external coating layer with a smooth surface.
（作 用）
本発明によれば、部材に耐食性及び防汚性の優れたＣｕ
合金被覆材を溶射するので、部材の形状に拘らず比較的
強固に部材と接合した外部溶射層を形成することができ
る。そして、この溶射層は加熱手段により溶融されて封
孔処理がなされた無孔質の外部被覆層となるので、水密
性に富み、その表面は平滑性を具備したものとなる。(Function) According to the present invention, the member is made of Cu which has excellent corrosion resistance and stain resistance.
Since the alloy coating material is thermally sprayed, it is possible to form an outer thermal sprayed layer that is relatively firmly bonded to the member regardless of the shape of the member. This thermal sprayed layer is melted by a heating means and becomes a non-porous outer coating layer that has been sealed, so it is highly watertight and has a smooth surface.
また、前記外部被覆層の形成に先だち、部材に絶縁材若
しくは犠牲陽極材を溶射し、得られた中間溶射層を加熱
手段により溶融して無孔質の中間層を設けるので、セラ
ミックスのような非金属の中間層を容易に形成でき、ま
た外部被覆層が万一欠落しても、部材に局部電池が形成
されることなく、また欠落しなくても、防汚性に効果の
あるＣｕイオンの溶出が港内の迷走電流や低電圧の負荷
により阻止されることがない。Furthermore, prior to forming the outer coating layer, an insulating material or a sacrificial anode material is sprayed onto the member, and the resulting intermediate sprayed layer is melted by a heating means to provide a non-porous intermediate layer. Cu ions can easily form a non-metallic intermediate layer, and even if the outer coating layer is missing, a local battery will not be formed on the member, and even if the outer coating layer is not missing, it will not cause stain resistance. elution is not inhibited by stray currents or low voltage loads in the port.
（実施例） 次に本発明の実施例について図面を参照して説明する。(Example) Next, embodiments of the present invention will be described with reference to the drawings.
第１図〜第３図は船体外板等の鋼部材に本発明を適用し
た場合の説明図である。FIGS. 1 to 3 are explanatory views when the present invention is applied to steel members such as hull outer plates.
まず、第１図の如く、部材１の表面に絶縁材や犠牲陽極
材を溶射し、次いで第２図の如く、得られた中間溶射層
２をレーザーガンや火炎噴射ノズルのような加熱手段に
より溶融して中間層３を形成し、その上に耐食性及び防
汚性の優れたＣｕ合金、例えばＣｕ−Ｎｉ合金、Ｃｕ−
５ｎ−Ｚｎ −Ａｊ！合金等の被覆材を電気アーク溶射
、プラズマ溶射等の溶射手段で溶射し、外部溶射層４を
形成する。次いで、加熱手段を用いて出力を調整しなが
ら前記外部溶射層４を溶融せしめ、封孔処理を行う、そ
の結果、無孔質でかつ外面が平滑な外部被覆層５が形成
される。該外部被覆層３の厚さは、通常１０〜３０００
μｍに形成される。即ち、１回の溶射層は約３０〜６０
μ請となり、これを封孔処理すると、１０〜２０μ鴎と
なる。一方、船体の寿命および耐久性を勘案し、３００
０μ−以下とされる。First, as shown in FIG. 1, an insulating material and a sacrificial anode material are sprayed on the surface of a member 1, and then, as shown in FIG. 2, the obtained intermediate sprayed layer 2 is heated by a heating means such as a laser gun or a flame injection nozzle. The intermediate layer 3 is formed by melting, and a Cu alloy having excellent corrosion resistance and antifouling properties, such as Cu-Ni alloy, Cu-
5n-Zn-Aj! A coating material such as an alloy is thermally sprayed by a thermal spraying method such as electric arc thermal spraying or plasma thermal spraying to form the outer thermal sprayed layer 4. Next, the external sprayed layer 4 is melted and sealed while adjusting the output using a heating means, and as a result, an external coating layer 5 that is non-porous and has a smooth outer surface is formed. The thickness of the outer coating layer 3 is usually 10 to 3000 mm.
Formed in μm. That is, one thermal spray layer is about 30 to 60
When this is sealed, it becomes a 10 to 20 μm hole. On the other hand, considering the lifespan and durability of the hull, 300
It is assumed to be 0μ or less.
また、外部被覆層３を特に厚く形成する場合は、溶射と
封孔処理を繰り返して行えばよく、また場合によっては
、異種材料の外部被覆層を重合して設けることもできる
。Further, when forming the outer coating layer 3 to be particularly thick, the thermal spraying and sealing treatments may be repeated, and depending on the case, the outer coating layer may be formed by polymerizing different materials.
尚、溶射層を封孔する手段として、圧延により溶射層中
の微細空隙を圧潰する方法もあるが、曲面部材への適用
や現場施工の点で難がある。In addition, as a means of sealing the sprayed layer, there is a method of crushing the fine voids in the sprayed layer by rolling, but this method is difficult in terms of application to curved members and on-site construction.
本発明においては、部材１と外部被覆層５の間に中間層
３を形成したので種々の点で有利となる。In the present invention, since the intermediate layer 3 is formed between the member 1 and the outer coating layer 5, it is advantageous in various respects.
すなわち、外部被覆層５が破損した場合、海水は中間層
３に阻まれて部材１に到達することができず局部電池が
形成されるのを防止することができ、また、外部被覆層
５の上にＡｊ！ −Ｚｎ等の防食が施された場合にあっ
ても、外部被覆層５から防汚効果のあるＣｕイオンが溶
出しなくなるのを防止することができる。すなわちＡｌ
−Ｚｎから外部被覆層５のＣｕ合金を経由して鋼部材１
に亘り電気回路が構成されるのを阻止することができ、
その結果港内の迷走電流や低電圧の負荷により外部被覆
層５から防汚効果のあるＣｕイオンが溶出しなくなるの
を防止することができるのである。また、船体に取付け
られた電気防食装置の電流回路に外部被覆層が電流経路
として組み込まれ、Ｃｕイオンの溶出が阻止されるのを
防止することができる。That is, if the outer coating layer 5 is damaged, seawater is blocked by the intermediate layer 3 and cannot reach the member 1, thereby preventing the formation of a local battery. Aj on top! Even when anti-corrosion such as -Zn is applied, it is possible to prevent Cu ions having an antifouling effect from being eluted from the outer coating layer 5. That is, Al
- Steel member 1 from Zn via Cu alloy of outer coating layer 5
can prevent electrical circuits from being constructed for
As a result, it is possible to prevent Cu ions, which have an antifouling effect, from being eluted from the outer coating layer 5 due to stray currents or low voltage loads in the port. Further, the outer coating layer is incorporated as a current path in the current circuit of the cathodic protection device attached to the hull, and it is possible to prevent the elution of Cu ions from being blocked.
前記中間層３の溶射に用いる絶縁材としては、Ａ１７２
ＱＢ、 Ｔｉ（ｈを含んだＡＪ’２Ｃｈ、ＴｉＱ２、
Ｎｉ０５ＣｕＯ、Ｆｅ ２０３、Ｆｅ ３０４、Ｓｉ０
２ 、Ｚｒｏ等が例示でき、中でもグレイアルミナと呼
ばれるＴｉＯ２を含んだＡｊ’２（ｈは安価であり経済
性に優れる。かがるセラミックスは、セラミックスプラ
ズマ溶射によって溶射され、部材表面に中間溶射層２が
容易に形成される。該中間溶射層２を封孔処理して得ら
れた中間層３の厚さは通常３０〜３００μ層とされる。The insulating material used for spraying the intermediate layer 3 is A172.
QB, Ti (AJ'2Ch including h, TiQ2,
Ni05CuO, Fe 203, Fe 304, Si0
2, Zro, etc. Among them, Aj'2 (h) containing TiO2 called gray alumina is inexpensive and excellent in economic efficiency. 2 is easily formed. The thickness of the intermediate layer 3 obtained by sealing the intermediate sprayed layer 2 is usually 30 to 300 μm.
絶縁層としての役割を果させるためには３０μ−以上は
必要であり、一方３００μ−を越えると加工性が劣るの
で好ましくない。In order to function as an insulating layer, it is necessary to have a thickness of 30 μm or more, while a thickness exceeding 300 μm is not preferable because the processability is poor.
また、中間層３に用いられる犠牲陽極材としては、Ｚｎ
５Ａ ｊ！ ％ Ｓｎ等およびその等の合金材料が考え
られる。Further, as the sacrificial anode material used for the intermediate layer 3, Zn
5A j! % Sn, etc. and alloy materials such as these are considered.
尚、中間層は一層に限らすＣｕｓ Ｃｕ合金等で形成さ
れたバンクアップ層を介して複数層としてもよい。中間
層を複数層設けた実施例を第４図に示す。Note that the intermediate layer is limited to one layer, but may be multiple layers with a bank-up layer formed of a Cu alloy or the like interposed therebetween. FIG. 4 shows an embodiment in which a plurality of intermediate layers are provided.
部材ｌの表面には、部材との溶射性の良好なＮｉ−Ｃｕ
合金等で電気アーク溶射されたボンド層６（封孔処理ナ
シ）が１０〜２０μ−厚に形成されており、第１中間層
３ａの部材への接合を強固にしている。該ボンド層６の
上に溶射・封孔処理された第１中間層３ａが形成され、
その上にＣｕ、 Ｃｕ合金等で溶射・封孔処理されたバ
ンクアップ層７が形成され、該バックアツプ層７の上に
第２中間層３ｂが形成され、更にその上に外部被覆層５
が形成されている。このように中間層を複数層に分ける
と、一層当りの層厚を薄くすることができ、中間層にセ
ラミックスを用いた場合部材の曲げ加工等に対して割損
が生じ難くなり有利となる。この場合、各中間層の厚さ
は３０〜１００μ−程度にすることが好ましい、尚、バ
ックアツプ層７の厚さは特に限定されないが、経済性を
考慮して、分割された中間層厚の１．５〜２倍が適当で
ある。The surface of the member l is coated with Ni-Cu, which has good thermal sprayability with the member.
A bond layer 6 (without sealing treatment) formed of an alloy or the like by electric arc spraying is formed to a thickness of 10 to 20 μm to strengthen the bonding of the first intermediate layer 3a to the member. A first intermediate layer 3a subjected to thermal spraying and sealing treatment is formed on the bond layer 6,
A bank-up layer 7 thermally sprayed and sealed with Cu, Cu alloy, etc. is formed thereon, a second intermediate layer 3b is formed on the backup layer 7, and an outer coating layer 5 is further formed thereon.
is formed. When the intermediate layer is divided into a plurality of layers in this way, the thickness of each layer can be reduced, and when ceramic is used for the intermediate layer, breakage is less likely to occur during bending of the member, which is advantageous. In this case, it is preferable that the thickness of each intermediate layer is about 30 to 100 μ-.The thickness of the backup layer 7 is not particularly limited, but considering economic efficiency, the thickness of the divided intermediate layer is 1.5 to 2 times is appropriate.
次に本発明法により形成された被覆部材の特性について
従来被覆部材、比較被覆部材と共に掲げる。第１表は被
覆部材の構造及び被覆層の形成方法について説明したも
のであり、第２表は各種の特性について説明したもので
ある０部材嵐に○印を付したものは本発明に係るもので
ある。尚、使用した部材はすべて鋼材である。Next, the characteristics of the coated member formed by the method of the present invention will be listed together with the conventional coated member and a comparative coated member. Table 1 explains the structure of the covering member and the method of forming the covering layer, and Table 2 explains various characteristics.Those marked with a circle in the 0 member list are those related to the present invention. It is. Note that all the members used were steel.
本発明は、溶射手段と加熱手段とを準備するだけで容易
に実施できるので、現場施工に好適であり、その結果、
被覆層の補修や部材溶接箇所の被覆手段としても優れる
。第５図（１１〜（４）は、部材１と外部被覆層５との
間に中間層３を設けた本発明の被覆部材を接合する場合
を示しており、同図＋１１の如く溶接箇所を仮付けした
後突き合せ溶接し、溶接余盛部を削除して溶射のための
表面処理を施した後、同図（２）のように中間溶射層２
を形成し封孔処理を行って無孔質の中間層３とした後、
同図（３）の如く、その上に外部溶射層４を形成し、次
に同図（４）のように封孔処理を行って外部被覆層５を
完成させ、溶接部の被覆を完了するのである。被覆層が
一部欠落、剥離した場合も同様の手段で容易に補修でき
る。The present invention is suitable for on-site construction because it can be easily carried out by simply preparing a thermal spraying means and a heating means, and as a result,
It is also excellent as a means of repairing coating layers and covering welded parts of parts. Figure 5 (11 to (4)) shows the case of joining the covering member of the present invention in which the intermediate layer 3 is provided between the member 1 and the outer covering layer 5. After tack welding, butt welding, removing the weld excess, and performing surface treatment for thermal spraying, the intermediate thermal spray layer 2 is applied as shown in Figure (2).
After forming and performing pore sealing treatment to form a non-porous intermediate layer 3,
As shown in (3) in the same figure, an external sprayed layer 4 is formed thereon, and then, as shown in (4) in the same figure, a sealing process is performed to complete the external coating layer 5, completing the coating of the welded part. It is. Even if a portion of the coating layer is missing or peeled off, it can be easily repaired using the same method.
尚、本発明に係る封孔処理方法が適用できるのは、本発
明により形成された被覆部材に限らず、例えば圧延によ
り外部被覆層が形成され被覆部材に対しても適用できる
ことは勿論である。第６図（１１〜（４）は、部材１に
外部被覆層５のみが形成された被覆部材の溶接部の被覆
工程を示している。まず同図＋１１の如く部材ｌの溶接
箇所を仮付けし、同図（２）のように突き合せ溶接し、
溶接余盛部を削除した後、溶射のための表面処理を施し
、次に同図（３）及び（４）のように被覆材を溶射して
外部溶射層４を形成しかつガス炎若しくはレーザーによ
り溶融せしめて封孔処理を行うのである。It goes without saying that the pore sealing method according to the present invention is applicable not only to the coated member formed according to the present invention, but also to coated members whose outer coat layer is formed by rolling, for example. Figure 6 (11 to (4)) shows the process of covering the welded parts of the covering member in which only the outer coating layer 5 is formed on the member 1. First, as shown in +11 in the figure, the welded parts of the member 1 are tacked. Then, butt weld as shown in (2) in the same figure.
After removing the welding excess, surface treatment for thermal spraying is performed, and then a coating material is thermally sprayed to form an external thermal spray layer 4 as shown in (3) and (4) in the same figure. The material is melted and sealed.
（発明の効果）
以上説明したように、本発明によれば、部材に耐食性及
び防汚性の優れたＣｕ合金被覆材を溶射し、得られた外
部溶射層を加熱手段により溶融するので、部材が曲面で
あってもその表面に、部材との接合が良好で無孔賞故に
水密性に優れかつ表面平滑な外部被覆層を容易に形成で
き、しかも現場施工に適しているので、被覆部材溶接部
や部分欠落部に対する補修にも好適である。(Effects of the Invention) As explained above, according to the present invention, a Cu alloy coating material with excellent corrosion resistance and antifouling properties is thermally sprayed onto a member, and the obtained external thermally sprayed layer is melted by a heating means. Even if the surface is curved, it is possible to easily form an outer coating layer on the surface that has good bonding with the component and has excellent watertightness and a smooth surface because it is non-porous. Moreover, it is suitable for on-site construction, so it is possible to weld the coating material. It is also suitable for repairing missing parts and parts.
また、前記外部被覆層の形成に先立ち、部材に絶縁材若
しくは犠牲陽極材を溶射し、得られた中間溶射層を加熱
手段により溶融するので、セラミックスのような非金属
絶縁材の無孔質の中間層を容易に形成できる。また、得
られた被覆部材は、外部被覆層が一部欠落しても海水が
部材に直に接することがないので局部電池が形成されず
腐食が進行せず、また外部被覆層が欠落しなくても、港
内の迷走電流や低電圧の分割により、防汚効果のあるＣ
ｕイオンの溶出が阻止されることがなく、防汚性に極め
て優れる。Furthermore, prior to forming the outer coating layer, an insulating material or a sacrificial anode material is sprayed onto the member, and the resulting intermediate sprayed layer is melted by a heating means. An intermediate layer can be easily formed. In addition, even if a part of the outer coating layer is missing, seawater will not come into direct contact with the obtained coated member, so local batteries will not be formed and corrosion will not progress, and the outer coating layer will not be missing. However, due to the stray current and low voltage division in the port, C, which has an antifouling effect,
The elution of U ions is not inhibited, and the stain resistance is extremely excellent.
第１図〜第３図は本発明の表面被覆方法の実施説明図で
あり、第１図は中間溶射層を形成した状態を、第２図は
中間溶射層の封孔処理の状態を示し、第３図は外部被覆
層の形成工程を示す図、第４図は本発明に係る複数の中
間層を設けた被覆部材の断面図、第５図（１１〜（４）
は中間層及び外部被覆層を有する被覆部材の溶接部に本
発明方法を適用した場合の実施説明図、第６図（１１〜
（４）は外部被覆層のみを有する被覆部材の溶接部に本
発明に係る封孔処理方法を適用した場合の実施説明図で
ある。
１・・一部材、２・−中間溶射層、３・・−中間層、４
−外部溶射層、５−外部被覆層。FIGS. 1 to 3 are explanatory views of the surface coating method of the present invention, in which FIG. 1 shows a state in which an intermediate sprayed layer has been formed, and FIG. 2 shows a state in which the intermediate sprayed layer has been sealed, Fig. 3 is a diagram showing the formation process of the outer coating layer, Fig. 4 is a sectional view of a coating member provided with a plurality of intermediate layers according to the present invention, and Fig. 5 (11 to (4)).
Figures 6 (11 to 11) are explanatory diagrams of implementation when the method of the present invention is applied to a welded part of a coated member having an intermediate layer and an outer coating layer.
(4) is an explanatory diagram of the case where the sealing method according to the present invention is applied to a welded portion of a covering member having only an outer covering layer. 1...One member, 2...-Intermediate sprayed layer, 3...-Intermediate layer, 4
- external sprayed layer, 5 - external coating layer.
Claims (1)
た中間溶射層を加熱手段により溶融して無孔質の中間層
を形成し、該中間層の上に耐食性及び防汚性の優れたＣ
ｕ合金被覆材を溶射し、得られた外部溶射層を加熱手段
により溶融して無孔質かつ表面平滑な外部被覆層を形成
することを特徴とする海洋構造部材の表面被覆方法。1. A non-porous intermediate layer is formed by thermally spraying an insulating material or a sacrificial anode material onto a member, and melting the obtained intermediate thermally sprayed layer using a heating means, and then forming a non-porous intermediate layer on the intermediate layer, which has excellent corrosion resistance and antifouling properties. C
1. A method for coating the surface of a marine structural member, which comprises spraying a U-alloy coating material and melting the resulting outer sprayed layer using a heating means to form a non-porous outer coating layer with a smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60078206A JPS61235551A (en) | 1985-04-11 | 1985-04-11 | Coating method for surface of ocean structural member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60078206A JPS61235551A (en) | 1985-04-11 | 1985-04-11 | Coating method for surface of ocean structural member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61235551A true JPS61235551A (en) | 1986-10-20 |
Family
ID=13655556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60078206A Pending JPS61235551A (en) | 1985-04-11 | 1985-04-11 | Coating method for surface of ocean structural member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61235551A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6414598U (en) * | 1987-07-17 | 1989-01-25 | ||
| JPH0212498U (en) * | 1988-07-07 | 1990-01-25 | ||
| WO1997045566A1 (en) * | 1996-05-24 | 1997-12-04 | Nippon Steel Hardfacing Co., Ltd. | Method of strengthening sprayed coating |
| WO2017014002A1 (en) * | 2015-07-23 | 2017-01-26 | トーカロ株式会社 | Method for manufacturing surface-modified member |
| CN112609148A (en) * | 2020-12-09 | 2021-04-06 | 中国南方电网有限责任公司超高压输电公司柳州局 | Preparation method of novel Ni-Cu-AT13 coating serving as material for transmission tower and Ni-Cu-AT13 coating |
-
1985
- 1985-04-11 JP JP60078206A patent/JPS61235551A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6414598U (en) * | 1987-07-17 | 1989-01-25 | ||
| JPH0212498U (en) * | 1988-07-07 | 1990-01-25 | ||
| WO1997045566A1 (en) * | 1996-05-24 | 1997-12-04 | Nippon Steel Hardfacing Co., Ltd. | Method of strengthening sprayed coating |
| WO2017014002A1 (en) * | 2015-07-23 | 2017-01-26 | トーカロ株式会社 | Method for manufacturing surface-modified member |
| JPWO2017014002A1 (en) * | 2015-07-23 | 2018-03-15 | トーカロ株式会社 | Method for producing surface modified member |
| JP2019163550A (en) * | 2015-07-23 | 2019-09-26 | トーカロ株式会社 | Production method of surface modification member |
| US10900111B2 (en) | 2015-07-23 | 2021-01-26 | Tocalo Co., Ltd. | Method for producing surface-modified component |
| CN112609148A (en) * | 2020-12-09 | 2021-04-06 | 中国南方电网有限责任公司超高压输电公司柳州局 | Preparation method of novel Ni-Cu-AT13 coating serving as material for transmission tower and Ni-Cu-AT13 coating |
| CN112609148B (en) * | 2020-12-09 | 2022-11-01 | 中国南方电网有限责任公司超高压输电公司柳州局 | Preparation method of novel Ni-Cu-AT13 coating for power transmission tower and Ni-Cu-AT13 coating |
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