JPH01298186A - Method for preventing corrosion of marine steel structure and corrosion preventing protective cover - Google Patents
Method for preventing corrosion of marine steel structure and corrosion preventing protective coverInfo
- Publication number
- JPH01298186A JPH01298186A JP63126842A JP12684288A JPH01298186A JP H01298186 A JPH01298186 A JP H01298186A JP 63126842 A JP63126842 A JP 63126842A JP 12684288 A JP12684288 A JP 12684288A JP H01298186 A JPH01298186 A JP H01298186A
- Authority
- JP
- Japan
- Prior art keywords
- protective cover
- corrosion
- anode material
- galvanic anode
- steel structure
- 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.)
- Granted
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 230000001681 protective effect Effects 0.000 title claims abstract description 57
- 230000007797 corrosion Effects 0.000 title claims abstract description 21
- 230000003405 preventing effect Effects 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims description 8
- 239000010405 anode material Substances 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims 2
- 239000013521 mastic Substances 0.000 abstract description 22
- 239000013535 sea water Substances 0.000 abstract description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052725 zinc Inorganic materials 0.000 abstract description 5
- 239000011701 zinc Substances 0.000 abstract description 5
- 239000004264 Petrolatum Substances 0.000 abstract description 3
- 229940066842 petrolatum Drugs 0.000 abstract description 3
- 235000019271 petrolatum Nutrition 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000005536 corrosion prevention Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 235000001270 Allium sibiricum Nutrition 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- -1 sheet Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、海洋鋼構造物のうちで最も腐食されやすい
部分１例えば、潮の満潮、干潮により海水中に潜ったり
海面上に露出したりする干満帯（タイダル）または海水
のしぶきのかかる飛沫帯（スプラッシュゾーン）の防食
法およびその防食に用いる保護カバーに関するものであ
る。[Detailed Description of the Invention] [Field of Industrial Application] This invention is applicable to marine steel structures that are most susceptible to corrosion (1), such as those that are submerged in seawater or exposed above the sea surface due to high tide or low tide. The present invention relates to a corrosion prevention method for tidal zones or splash zones where seawater is splashed, and a protective cover used for the corrosion prevention.
一般に、海洋鋼構造物１例えば鋼矢板等を海中に構築し
た場合、上記鋼矢板の干満帯および飛沫帯にあたる部分
には、ベトαラタムチーブ、マスチックまたははトロラ
タムパテ等の封着部材を貼付けまたは塗布し、上記封着
部材を上記鋼矢板と同一形状をしたグラスチック製保護
カバーで被覆し、上記保護カバーをボルト等で固定して
防食効果を高めていた。Generally, when a marine steel structure 1, such as a steel sheet pile, is constructed underwater, a sealing material such as veterinary alpha latam chives, mastic, or trolatum putty is pasted or applied to the parts of the steel sheet pile that correspond to the tidal zone and the splash zone. The sealing member was covered with a glass protective cover having the same shape as the steel sheet pile, and the protective cover was fixed with bolts or the like to enhance the anticorrosion effect.
この従来の防食法を第６図にもとづいて具体的に説明す
る。This conventional corrosion prevention method will be specifically explained based on FIG.
第６図Ｆｉ、従来のマスチックおよびはトロラタムパテ
と保護カバーを用いて海水からの腐食防止を施した鋼矢
板の断面図であり、１は保護カバー。Fig. 6 Fi is a cross-sectional view of a steel sheet pile protected from corrosion by seawater using conventional mastic and trolatum putty and a protective cover; 1 is a protective cover;
２はマスチック、２′はペトロラタムパテ、 ３１−
１：鋼矢板、４はボルト、５は結合部である。2 is mastic, 2' is petrolatum putty, 31-
1 is a steel sheet pile, 4 is a bolt, and 5 is a joint.
上記第６図にみられるように１組立てられた鋼矢板３の
海側表面にまずマスチック２を貼付ける。As shown in FIG. 6 above, mastic 2 is first applied to the sea side surface of the assembled steel sheet piles 3.
この場合、Ｔｈ矢板３の接合部６には、特に水密性を確
保するためににトロラタムパテ２′ヲ用いて目張りを行
なうことも行なわれている。このようにして貼付けられ
たマスチック２を保護するたに／）に。In this case, the joints 6 of the Th sheet piles 3 are sometimes lined with trolatum putty 2' in order to particularly ensure watertightness. To protect the mastic 2 applied in this way/).
上記マスチック２を保護カバー１で被覆し、上記保護カ
バー１はボルト４をしめることによ邊上記マスチック２
を圧着し鋼矢板３に固着される。The mastic 2 is covered with a protective cover 1, and the protective cover 1 is attached to the mastic 2 at the side by tightening the bolts 4.
is crimped and fixed to the steel sheet pile 3.
従来、海中に構築した鋼矢板の干満帯（タイダル）およ
び飛沫帯（スズラッシュゾーン）は、上述の如＜Ｋして
海水から水密的に絶縁され、腐食を防いでいたのである
。Conventionally, the tidal zone and the tin rush zone of steel sheet piles constructed under the sea were watertightly insulated from seawater as described above to prevent corrosion.
ところが、上記保護カバー１と鋼矢板３の間にマスチッ
ク２を挾んでボルト４を締めつけることによりマスチッ
ク２を圧着する従来の鋼矢板防食法でＦ′ｉ。However, with the conventional steel sheet pile corrosion protection method in which the mastic 2 is sandwiched between the protective cover 1 and the steel sheet pile 3 and the mastic 2 is crimped by tightening the bolts 4, F'i occurs.
■ マスチック２にボルト４を通すための貫通孔を設け
て圧着するために、上記貫通孔とボルトとの間隙から海
水が浸透し、ｆＡ矢板を腐食する。(2) Since through-holes are provided in the mastic 2 to pass the bolts 4 through and the mastic 2 is crimped, seawater permeates through the gap between the through-holes and the bolts, corroding the fA sheet pile.
■ 鋼矢板の結合部５の近傍の複雑な形状をした部分を
ボルト４を締めつけることによりマスチック２を圧着し
ても、下地となる鋼矢板３が複雑な形状をしているため
に圧着不足部分が住じ、上記圧着不足部分に海水が浸透
して滞留し鋼矢板を腐食する。■ Even if the mastic 2 is crimped by tightening the bolts 4 to the complicatedly shaped part near the joint 5 of the steel sheet piles, there will be insufficient crimping because the underlying steel sheet piles 3 have a complicated shape. seawater penetrates and stagnates in the insufficiently crimped areas, corroding the steel sheet piles.
□■ 保護カバーの端部、保護カバーの接合部は。□■ The edges of the protective cover and the joints of the protective cover.
上記■および■と同様に圧着不足部分が生じやすく、ペ
トロラタムパテ対象面への海水浸透、滞留を引起し、腐
食の原因となる。Similar to (2) and (2) above, insufficient crimping tends to occur, causing seawater to penetrate and stay on the target surface of the petrolatum putty, causing corrosion.
したがって、従来の鋼矢板防食法では、いずれにしても
腐食防止は不完全となるという問題点があった。Therefore, the conventional steel sheet pile corrosion prevention method has the problem that corrosion prevention is incomplete in any case.
そこで本発明者は、上記問題点を解決すべく創意工夫を
行なった結果。Therefore, the inventors of the present invention have made creative efforts to solve the above problems.
海洋鋼構造物の干満帯、飛沫帯等の海水浸透予想部表面
を、マスチック、ハトロラタムテープ、ヘトロラタムパ
テ等の封着部材で被覆し、その上に、金網、ワイヤ、粉
末、シート、膜等の形状を有する流電陽極材を付属させ
た保護カバーを取付けることによシ、上記封着部材を保
護すると同時に上記海洋鋼構造物の表面に上記封屑部材
を互層水密化することができ、すぐれた防食効果を得る
ことができるという知見を得たのである。The surface of marine steel structures where seawater is expected to penetrate, such as the tidal zone or the splash zone, is coated with a sealing material such as mastic, hatrolatum tape, or hetrolatum putty, and then coated with wire mesh, wire, powder, sheet, membrane, etc. By installing a protective cover attached with a galvanic anode material having the shape of , it is possible to protect the sealing member and at the same time make the sealing member watertight by alternating layers on the surface of the marine steel structure, They found that it is possible to obtain excellent anticorrosion effects.
この発明は、かかる知見にもとづいてなされたものであ
って。This invention was made based on this knowledge.
海洋鋼構造物の表面に封着部材を被覆し、さらに上記封
着部材の上に流電陽極材を付属してなる防食保護カバー
を被覆する海洋鋼構造物防食法。A method for preventing corrosion of marine steel structures, which comprises coating the surface of a marine steel structure with a sealing member, and further covering the sealing member with a corrosion protection cover comprising a galvanic anode material.
および
海洋鋼構造物と相似の断面形状を有する保護カバーの片
面に流電陽極材を付属させてなる海洋鋼構造物の防食保
護カバー
に特徴を有するものである。Another feature of the present invention is a corrosion-resistant protective cover for a marine steel structure, in which a galvanic anode material is attached to one side of the protective cover having a cross-sectional shape similar to that of the marine steel structure.
上記流電陽極材の素材としては、亜鉛またけ亜鉛合金が
一般に使用されているが、上記亜鉛または亜鉛合金に限
定されることなく、銅よシも電位が卑な金属およびその
合金１例えば、アルミニウム、マンガン、マグネシウム
およびそれらの合金が使用され、ま７１ｍ、材料と複合
した復合板の形で海洋鋼構造物表面に接触せしめること
もある。As the material for the galvanic anode material, zinc-spread zinc alloy is generally used, but it is not limited to the above-mentioned zinc or zinc alloy, and metals and alloys thereof that have a base potential as low as copper, for example, Aluminum, manganese, magnesium and their alloys are used, and may also be in contact with the surface of marine steel structures in the form of composite plywood with materials.
上記保護カバーは、プラスチック等の合成樹脂で作成す
ることが好ましく、上記保護カバーに付属する流電陽極
材の形状は、金網、ワイヤ、粉末。The protective cover is preferably made of synthetic resin such as plastic, and the galvanic anode material attached to the protective cover is in the form of a wire mesh, wire, or powder.
シート、Ｍなどであってよい。上記合成樹脂からなる保
繰カバーの片面に上記金網、ワイヤ、粉末。It may be a sheet, M, etc. The wire mesh, wire, and powder are placed on one side of the protective cover made of the synthetic resin.
シート、膜などの形状をした流電陽極材を１両面テープ
、接着剤等で貼付けてもよく上記粉末を塗布してもよい
。さらに無電解メッキ、溶射、蒸着等の手段によシ上記
保護カバーの片面に流電陽極材層を形成してもよい。A galvanic anode material in the form of a sheet, film, etc. may be attached with double-sided tape, adhesive, etc., or the above powder may be applied. Furthermore, a galvanic anode material layer may be formed on one side of the protective cover by means such as electroless plating, thermal spraying, vapor deposition, or the like.
流電陽極材が完全に海洋鋼構造物と接触せずとも、ごく
近くに存在し、流電陽極材が海水に浸漬していれば溶解
し、流電陽極材のイオンを生成するので接触したと同様
な効果があるが、この発明の防食保護カバーの流電陽極
材を積極的にｓＫ鋼構造物と接触させるには、突起を有
する保護カバーと流電陽極材とからなる防食保護カバー
を用いるとよい。上記保護カバーの突起は封着部材を頁
通し流電１ｉ１１極材と海洋鋼構造物を接触せしめる作
用と外部より上記封着部材を海洋鋼構造物表面に強固に
圧着させる作用を有する。Even if the galvanic anode material does not come into complete contact with the marine steel structure, if the galvanic anode material is present in close proximity and immersed in seawater, it will dissolve and generate ions of the galvanic anode material. However, in order to bring the galvanic anode material of the anti-corrosion protective cover of the present invention into positive contact with the SK steel structure, it is necessary to use a corrosion-proof protective cover consisting of a protective cover with protrusions and a galvanic anode material. Good to use. The protrusion of the protective cover has the function of passing the sealing member through and bringing the current current 1i11 pole material into contact with the marine steel structure, and also having the function of firmly pressing the sealing member onto the surface of the marine steel structure from the outside.
つぎに、この発明を実施例にもとづいて具体的に説明す
る。Next, the present invention will be specifically explained based on examples.
第１図は、Ｓ注鋼構造物の鋼矢板の防食に用いるこの発
明の防食保護カバーの一部断面図２第２図は、上記第１
図の防食保護カバーを海洋鋼構造物の鋼矢板に取付けて
防食処理を施した状態の一部断面図。Fig. 1 is a partial cross-sectional view of the anti-corrosion protection cover of the present invention used for corrosion protection of steel sheet piles of S poured steel structures.
A partial cross-sectional view of a state in which the anti-corrosion protection cover shown in the figure is attached to a steel sheet pile of a marine steel structure and subjected to anti-corrosion treatment.
第３図は、海洋＃構造物の鋼矢板の防食に用いるこの発
明のもう１つの防食保護カバーの一部断面図。FIG. 3 is a partial sectional view of another anti-corrosion protection cover of the present invention used for corrosion protection of steel sheet piles of marine structures.
第４図は、上記第３図の防食保護カバーを鋼矢板に取付
けて防食処理を施した状態の一部断面拡大図、
第５図は、この発明の防食保護カバーの別の使用態様を
示す説明図。Fig. 4 is an enlarged partial cross-sectional view of the anti-corrosion protection cover shown in Fig. 3 above, which is attached to a steel sheet pile and subjected to anti-corrosion treatment, and Fig. 5 shows another mode of use of the anti-corrosion protection cover of the present invention. Explanatory diagram.
第６図は、海洋鋼構造物の鋼矢板に従来の保物カバーを
取付けて防食処理を施した状態の一部断面図である。FIG. 6 is a partial cross-sectional view of a steel sheet pile of a marine steel structure in which a conventional protection cover is attached and anticorrosion treatment is applied.
まず、第１図に示されるこの発明の防食保護カバーにつ
いて説明する。First, the anti-corrosion protection cover of the present invention shown in FIG. 1 will be explained.
第１図に示されるこの発明の防食保護カバー８は、鋼矢
板の組立曲線に沿う形状を有するグラスチック製の保護
カバー１の片面に、亜鉛を溶射またはシート状にして接
着するなどして流電陽極材層６を形成することＫより型
造される。この防食保護カバー８は、第２図に示される
ように、９Ｉ１４矢板３の接合部間隙にはトロラタムパ
テ２′を充填し。The anti-corrosion protective cover 8 of the present invention shown in FIG. 1 is made by spraying zinc or bonding it in a sheet form on one side of a protective cover 1 made of glass and having a shape that follows the assembly curve of the steel sheet pile. Forming the electrode anode material layer 6 is made by molding. As shown in FIG. 2, this anti-corrosion protection cover 8 is made by filling the gap between the joints of the 9I14 sheet piles 3 with trolatum putty 2'.
ついで鋼矢板３の片面にマスチック２を被覆したのち、
ボルト４により組立られた鋼矢板３に取付けられる。こ
の場合、防食保護カバー８に設けられたボルト番の貫通
孔の間隙から海水が浸透しても、流電陽極材層６によっ
て鋼矢板３の腐食は妨けられる。Next, after coating one side of the steel sheet pile 3 with mastic 2,
It is attached to the assembled steel sheet pile 3 with bolts 4. In this case, even if seawater permeates through the gaps between the bolt number through holes provided in the anti-corrosion protection cover 8, corrosion of the steel sheet pile 3 is prevented by the galvanic anode material layer 6.
第３図に示されるこの発明の別の実施例の防食保護カバ
ー８は１片面に突起７を有するグラスチック製保護カバ
ー１と流電陽極材層６からなり。Another embodiment of the anti-corrosion protective cover 8 of the present invention shown in FIG.
この防食保護カバー８は、第４図に示されるように、ボ
ルト番で鋼矢板３に固定すると上記突起７はマスチック
２を貫通し、保護カバー１の表面に形成される流電陽極
材層６を鋼矢板３に電気的に接触させることができる。As shown in FIG. 4, when this anti-corrosion protection cover 8 is fixed to the steel sheet pile 3 with bolt numbers, the projections 7 penetrate through the mastic 2, and the galvanic anode material layer 6 formed on the surface of the protection cover 1 can be brought into electrical contact with the steel sheet pile 3.
上記突起７の先端を鈍角にしておけば、上記突起７はマ
スチック２を外から強固に固定するのみで、マスチック
２を貫通することはない。If the tip of the protrusion 7 is made obtuse, the protrusion 7 will only firmly fix the mastic 2 from the outside and will not penetrate the mastic 2.
また、この発明の防食保護カバーを取付けた海洋鋼構造
物では、第５図に示されるように、流電陽極月層６と鋼
矢板３の間の抵抗を測定することにより、マスチック２
内への水の浸透状況を測定することができる。すなわち
、マスチック２に亀Ｕｔたけ欠陥部９があると、この亀
裂９に海水１０がｍ溜し、抵抗が小さくなることから封
着部材であるマスチック２の密着状況を測定することが
できるのである。In addition, in marine steel structures equipped with the anti-corrosion protection cover of the present invention, as shown in FIG. 5, the mastic 2
It is possible to measure the state of water infiltration. In other words, if there is a defective part 9 in the mastic 2, seawater 10 accumulates in the crack 9, and the resistance decreases, making it possible to measure the adhesion status of the mastic 2, which is a sealing member. .
この実施例では、プラスチック共の保護カバー１に亜鉛
を溶射またはシート状にして接着させ流電陽極材層を形
成しこの発明の防食保護カバーを作成したが、この実施
例に限定されることなく合成街脂裂保護カバーに鋼より
も卑な金属からなる金網、ワイヤ、シート等を接着剤１
両面チーブ等で貼付けて作成しでもよく、また、上記鋼
よりも卑な金属を粉末状にし、て塗布してもよいうさら
に蒸着、無電解メッキ、−ｆ：、の他の手段により付属
させることもできる。In this example, the anti-corrosion protective cover of the present invention was created by thermally spraying or adhering zinc to the plastic protective cover 1 in the form of a sheet to form a galvanic anode material layer, but the present invention is not limited to this example. Glue wire mesh, wire, sheet, etc. made of a metal baser than steel to the synthetic fiber crack protection cover with adhesive 1.
It may be made by pasting it with double-sided chives, etc., or it may be applied by powdering a metal less base than the above-mentioned steel, or it may be attached by other means such as vapor deposition, electroless plating, -f:, etc. You can also do that.
（２） この発明の防食保護カバーを用いると、従来の
防食法と全く同じ方法で簡単に海洋鋼構造物に防食処理
を施すことができ、海洋鋼構造物の表面に被覆した封着
部材が破損して海水が上記破損個所に滞溜しても、この
発明の防食保護カバー付属のｆ＆電電極極材より海洋鋼
構造物の腐食は防止されるので従来よりも封着部材の被
覆に注意を払う必要がない。(2) By using the anti-corrosion protection cover of the present invention, it is possible to easily apply anti-corrosion treatment to marine steel structures in exactly the same way as conventional anti-corrosion methods, and the sealing member coated on the surface of marine steel structures can be Even if the marine steel structure is damaged and seawater accumulates in the damaged area, corrosion of the marine steel structure will be prevented by the f & electrode electrode material included with the anti-corrosion protective cover of this invention, so be more careful than before when covering the sealing member. There's no need to pay.
（２） 突起を有するこの発明の防食保護カバーを用
いると、封着部材を従来よりも一層強固に海洋鋼構造物
に固着することができる。(2) When the anti-corrosion protection cover of the present invention having projections is used, the sealing member can be more firmly fixed to the marine steel structure than before.
（３） この発明の防食保護カバーを用いると上記カ
バーと海洋ａｍｍ動物間に介在する封着部材の破損、密
着度等を検出することができ、施工、保守管理上に有効
である。(3) When the anti-corrosion protective cover of the present invention is used, it is possible to detect damage, degree of adhesion, etc. of the sealing member interposed between the cover and marine animals, which is effective in construction and maintenance management.
などのすぐれた効果を奏するものでるる。There are things that have excellent effects such as:
第上図は、この発明の防食保護カバーの一部断面図。
第２図は、第１図の防食保護カバーを海洋鋼構造物に取
付けた状態を示す一部断面図。
第３図は、この発明の別の実施例の防食保護カバーの一
部断面図２
第４図は、＠３図の防食保護カバーを海洋鋼構造物に取
付けた状態を示す一部断面拡大図。
第５図は、この発明の防食保護カバーの別の使用態様を
示す説明図。
第６図は、海洋１１４ｍ造物の鋼矢板に従来の保護カバ
ーを取付けて防食処理を施した状態の一部断面図である
。
１・・・保護カバー、 ２・・・マスチック。
３・・・鋼矢板、 ４・−・ボルト。
５・・・結合部。 ６・・・流１！陽極材層。
７・・・突起、 ８・・・この発明の防食保賎力ｌ
く−。
９・・・亀裂または欠陥部、１０・・・海水。
出願人 日本防蝕工業株式会社
代理人 富 １） 和 夫 外工名１ 右ｒｆ
ｆマハ゛−
Ｉ
第５図
３ １ｐη づ【 イ２ξ
第４図The upper figure is a partial sectional view of the anti-corrosion protection cover of the present invention. FIG. 2 is a partial sectional view showing a state in which the anti-corrosion protection cover of FIG. 1 is attached to a marine steel structure. Fig. 3 is a partially sectional view of a corrosion protection cover according to another embodiment of the present invention. Fig. 4 is a partially sectional enlarged view showing the state in which the anticorrosion protection cover of Fig. @3 is attached to a marine steel structure. . FIG. 5 is an explanatory diagram showing another usage mode of the anti-corrosion protection cover of the present invention. FIG. 6 is a partial cross-sectional view of a steel sheet pile of a 114 m marine structure in which a conventional protective cover is attached and anti-corrosion treatment is applied. 1...Protective cover, 2...Mastic. 3...Steel sheet pile, 4...Bolt. 5...Joining part. 6... style 1! Anode material layer. 7...Protrusion, 8...Anti-corrosion retention capacity l of this invention
Ku-. 9...Crack or defective part, 10...Seawater. Applicant Nippon Anticorrosion Industry Co., Ltd. Agent Tomi 1) Kazuo Outside engineer name 1 Right rf
f mah - I Fig. 5 3 1 pη zu [ I2ξ Fig. 4
Claims (13)
上記封着部材を流電陽極材付属の防食カバーで被覆する
ことを特徴とする海洋鋼構造物の防食法。(1) A method for preventing corrosion of a marine steel structure, which comprises coating the surface of the marine steel structure with a sealing member, and further covering the sealing member with a corrosion protection cover attached to a galvanic anode material.
護カバーの片面に流電陽極材を付属させてなることを特
徴とする防食保護カバー。(2) An anti-corrosion protective cover, characterized in that a galvanic anode material is attached to one side of the protective cover, which has a cross-sectional shape similar to that of a marine steel structure.
なることを特徴とする請求項２記載の防食保護カバー。(3) The anti-corrosion protective cover according to claim 2, characterized in that a galvanic anode material is adhered to one side of the protective cover.
てなることを特徴とする請求項２記載の防食保護カバー
。(4) The anti-corrosion protective cover according to claim 2, wherein galvanic anode material powder is coated on one side of the protective cover.
成してなることを特徴とする請求項２記載の防食保護カ
バー。(5) The anti-corrosion protective cover according to claim 2, wherein a sprayed film of galvanic anode material is formed on one side of the protective cover.
形成してなることを特徴とする請求項２記載の防食保護
カバー。(6) The anti-corrosion protective cover according to claim 2, characterized in that a plating layer of galvanic anode material is formed on one side of the protective cover.
成してなることを特徴とする請求項２記載の防食保護カ
バー。(7) The anti-corrosion protective cover according to claim 2, characterized in that a vapor deposited film of galvanic anode material is formed on one side of the protective cover.
を有する片面に、流電陽極材を付属させてなることを特
徴とする防食保護カバー。(8) An anti-corrosion protective cover comprising a protective cover having a large number of protrusions on one side, and a galvanic anode material attached to one side having the protrusions.
極材を接着させてなることを特徴とする請求項８記載の
防食保護カバー。(9) The anti-corrosion protective cover according to claim 8, wherein a galvanic anode material is adhered to one side of the protective cover having the protrusion.
陽極材粉末を塗布してなることを特徴とする請求項８記
載の防食保護カバー。(10) The anti-corrosion protective cover according to claim 8, wherein galvanic anode material powder is coated on one side of the protective cover having the protrusion.
陽極材の溶射膜を形成してなることを特徴とする請求項
８記載の防食保護カバー。(11) The anti-corrosion protective cover according to claim 8, wherein a sprayed film of galvanic anode material is formed on one side of the protective cover having the protrusion.
陽極材のメッキ層を形成してなることを特徴とする請求
項８記載の防食保護カバー。(12) The anti-corrosion protective cover according to claim 8, wherein a plating layer of galvanic anode material is formed on one side of the protective cover having the protrusion.
陽極材の蒸着膜を形成してなることを特徴とする請求項
８記載の防食保護カバー。(13) The anti-corrosion protective cover according to claim 8, wherein a vapor-deposited film of galvanic anode material is formed on one side of the protective cover having the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63126842A JP2531744B2 (en) | 1988-05-24 | 1988-05-24 | Marine steel structure anticorrosion protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63126842A JP2531744B2 (en) | 1988-05-24 | 1988-05-24 | Marine steel structure anticorrosion protection cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01298186A true JPH01298186A (en) | 1989-12-01 |
| JP2531744B2 JP2531744B2 (en) | 1996-09-04 |
Family
ID=14945227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63126842A Expired - Lifetime JP2531744B2 (en) | 1988-05-24 | 1988-05-24 | Marine steel structure anticorrosion protection cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2531744B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323431A (en) * | 2000-05-17 | 2001-11-22 | Nippon Steel Corp | Heavily corrosion resistant polyurethane clad steel |
| CN101865277A (en) * | 2009-10-22 | 2010-10-20 | 吴为国 | Speed reduction box of water wheel aerator and seawater aerator with same |
| WO2020010387A1 (en) * | 2018-07-10 | 2020-01-16 | Edelman Projects Pty Ltd | Wall protection assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56102584A (en) * | 1980-01-21 | 1981-08-17 | Showa Netsugaku Kogyo Kk | Corrosion inhibitor for galvanic anode method |
| JPS5713889U (en) * | 1980-06-30 | 1982-01-23 | ||
| JPS5853137A (en) * | 1981-09-25 | 1983-03-29 | Nec Corp | Permanent magnet for traveling wave tube |
| JPS60374U (en) * | 1983-05-30 | 1985-01-05 | 東北金属工業株式会社 | Seed crystal support |
| JPS60159061U (en) * | 1984-03-30 | 1985-10-23 | 新日本製鐵株式会社 | Cover for anti-corrosion lining of steel sheet pile wall |
| JPS6372891A (en) * | 1986-09-12 | 1988-04-02 | Mitsubishi Cable Ind Ltd | Corrosion resistant tape |
-
1988
- 1988-05-24 JP JP63126842A patent/JP2531744B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56102584A (en) * | 1980-01-21 | 1981-08-17 | Showa Netsugaku Kogyo Kk | Corrosion inhibitor for galvanic anode method |
| JPS5713889U (en) * | 1980-06-30 | 1982-01-23 | ||
| JPS5853137A (en) * | 1981-09-25 | 1983-03-29 | Nec Corp | Permanent magnet for traveling wave tube |
| JPS60374U (en) * | 1983-05-30 | 1985-01-05 | 東北金属工業株式会社 | Seed crystal support |
| JPS60159061U (en) * | 1984-03-30 | 1985-10-23 | 新日本製鐵株式会社 | Cover for anti-corrosion lining of steel sheet pile wall |
| JPS6372891A (en) * | 1986-09-12 | 1988-04-02 | Mitsubishi Cable Ind Ltd | Corrosion resistant tape |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323431A (en) * | 2000-05-17 | 2001-11-22 | Nippon Steel Corp | Heavily corrosion resistant polyurethane clad steel |
| CN101865277A (en) * | 2009-10-22 | 2010-10-20 | 吴为国 | Speed reduction box of water wheel aerator and seawater aerator with same |
| WO2020010387A1 (en) * | 2018-07-10 | 2020-01-16 | Edelman Projects Pty Ltd | Wall protection assembly |
| US11274411B2 (en) | 2018-07-10 | 2022-03-15 | Edelman Projects Pty Ltd | Wall protection assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2531744B2 (en) | 1996-09-04 |
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