JPS63162075A - Method for preventing corrosion of steel structure - Google Patents
Method for preventing corrosion of steel structureInfo
- Publication number
- JPS63162075A JPS63162075A JP30867086A JP30867086A JPS63162075A JP S63162075 A JPS63162075 A JP S63162075A JP 30867086 A JP30867086 A JP 30867086A JP 30867086 A JP30867086 A JP 30867086A JP S63162075 A JPS63162075 A JP S63162075A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- corrosion
- steel structure
- sheet
- coated
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 230000007797 corrosion Effects 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 28
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 238000005536 corrosion prevention Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000010828 elution Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 239000003973 paint Substances 0.000 description 6
- 239000004264 Petrolatum Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229940066842 petrolatum Drugs 0.000 description 5
- 235000019271 petrolatum Nutrition 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012184 mineral wax Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えば、海洋、港湾、河川等に建設された
鋼構造物に対する防食方゛法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a corrosion prevention method for steel structures constructed, for example, on the ocean, in ports, on rivers, etc.
海洋、港湾、河川等に建設された鋼構造物の特に水中部
分に対する防食は、従来下記のような方法によって行な
われている。Corrosion protection, particularly for underwater parts, of steel structures built on the ocean, ports, rivers, etc. has been conventionally carried out by the following methods.
（１）鋼構造物の表面に、防錆剤として鉱油と蝋との混
合物からなるペトロラタムを塗布し、次いでその表面を
ＦＲＰ製等の防食性カバーで覆う方法。(1) A method in which petrolatum, which is a mixture of mineral oil and wax, is applied as a rust preventive agent to the surface of a steel structure, and then the surface is covered with a corrosion-proof cover made of FRP or the like.
（２）鋼構造物の表面に、パテ状の水中硬化型塗料を、
手またはこてによって塗布する方法。(2) Putty-like underwater curing paint on the surface of the steel structure.
Method of application by hand or trowel.
（３）鋼構造物の表面に、網目状シートを内在させた水
中硬化型塗料からなる未硬化状態の形成板を貼着する方
法（特公昭６０−９８６８号）。(3) A method of attaching an uncured forming plate made of an underwater curing paint containing a mesh sheet to the surface of a steel structure (Japanese Patent Publication No. 60-9868).
しかしながら、上記（１）の方法には、未硬化のペトロ
ラタムの表面に被せられ、鋼構造物の表面には接着して
いない防食カバーが、ずれ下が！ｌｌまたは波浪によっ
て引き剥力Ｓされて離脱するおそれがあり、このような
防食カバーの離脱等によってペトロラタムが露出すると
、未硬化状態のペトロラタムが水中に溶出して防食効果
が無くなる上、防食力・ぐ−は高価である等の問題があ
る。However, in method (1) above, the anti-corrosion cover, which is placed over the surface of the uncured petrolatum and not adhered to the surface of the steel structure, may slip down! If the petrolatum is exposed due to detachment of the anti-corrosion cover, the unhardened petrolatum will be eluted into the water and lose its anti-corrosion effect, as well as lose its anti-corrosion ability. However, there are problems such as high cost.
上記（２）の方法には、水中硬化型塗料を手作業で塗布
するため非能率であシ且つ塗膜を均一な厚さに形成する
ことができず、塗布された塗料が硬化するまでの間に波
浪によって剥がれ、且つ、塗料はパテ状で粘度が高いた
め、現場での撹拌作業に手間を要する等の問題がある。Method (2) above is inefficient because the underwater curing paint is applied manually, and it is not possible to form a coating film with a uniform thickness. In addition, the paint is putty-like and has a high viscosity, which causes problems such as the need for laborious stirring work on site.
上記（３）の方法によれば、上述した（１）および（２
）の方法の問題点をある程度解決することができる。According to the method (3) above, the above-mentioned (1) and (2)
) can solve the problems of the method to some extent.
しかしながら（３）の方法には、水中硬化型塗料の可使
時間に制限があるため、現場において網目状シートを内
在させた水中硬化型塗料からなる形成板を調製しなけれ
ばならず、しかも、調製後早急に鋼構造物に貼着しなけ
ればならない問題がある。However, in method (3), since there is a limit to the pot life of the underwater curable paint, it is necessary to prepare a forming plate made of the underwater curable paint with a mesh sheet embedded therein, and furthermore, There is a problem in that it must be attached to a steel structure immediately after preparation.
従って、この発明の目的は、波浪等による剥離や水中へ
の溶出が生ぜず、能率的に且つ手間を要せず、しかも可
使時間の制限がなく均一な厚さの塗膜が形成されて、確
実な防食を行なうことができる、特に水中の鋼構造物に
対する防食方法を提供することにある。Therefore, an object of the present invention is to form a coating film of uniform thickness without peeling due to waves or elution into water, efficiently and without the need for labor, and with no limit on pot life. The object of the present invention is to provide a corrosion protection method that can provide reliable corrosion protection, especially for underwater steel structures.
この発明は、一方の表面に水中硬化型樹脂が塗布され、
他方の表面に硬化剤が塗布された、多数の小孔が形成さ
れる＠膜からなる防食シートを調製し、鋼構造物の表面
に前記防食シートを貼布し、このように貼布することに
よって前記隔膜に生じた多数の小孔を通し、前記隔膜の
一方の表面に塗布された水中硬化型樹脂と、前記隔膜の
他方の表面に塗布された硬化剤とを混合して硬化せしめ
、かくして、前記鋼構造物の表面に、硬化防食皮膜を形
成することに特徴を有するものである。In this invention, an underwater curable resin is applied to one surface,
Prepare an anti-corrosion sheet consisting of a @ membrane in which a large number of small holes are formed, with a hardening agent applied to the other surface, and apply the anti-corrosion sheet to the surface of a steel structure, and apply it in this way. The underwater curable resin applied to one surface of the diaphragm and the curing agent applied to the other surface of the diaphragm are mixed and cured through the large number of small holes created in the diaphragm. , which is characterized in that a hardened anti-corrosion film is formed on the surface of the steel structure.
次に、この発明の方法を、図面を参照しながら説明する
。第１図（イ）（→（ハ）に）は、この発明の方法の第
１実施態様を示す工程図、第２図（イ）（ロ）はこの発
明の第１実施態様において使用される隔膜の一例を示す
正面図である。第１図（イ）に垂直断面図で、第２図（
イ）に正面図で示すように、例えばポリエステル、ウレ
タン等のプラスチックからなるシート状またはテープ状
の隔膜１に一定間隔で多数の切り込み２を入れる。次い
で、多数の切り込み２が入れられた隔膜１の一方の表面
に水中硬化型樹脂３を塗布し、そして、その他方の表面
に硬化剤４を塗布し、かくして、一方の表面に水中硬化
型樹脂３の塗膜が形成され、他方の表面に硬化剤４の塗
膜が形成された、多数の切り込み２を有する隔膜１から
なる防食シート５を調製する。このような防食シート５
の調製は、予め工場において行なうことができる。Next, the method of the present invention will be explained with reference to the drawings. Figure 1 (A) (→ (C)) is a process diagram showing the first embodiment of the method of this invention, and Figures 2 (A) and (B) are used in the first embodiment of this invention. It is a front view showing an example of a diaphragm. Figure 1 (A) is a vertical sectional view, and Figure 2 (A) is a vertical cross-sectional view.
As shown in the front view in a), a large number of incisions 2 are made at regular intervals in a sheet-like or tape-like diaphragm 1 made of plastic such as polyester or urethane. Next, an underwater curable resin 3 is applied to one surface of the diaphragm 1 in which a large number of cuts 2 are made, and a curing agent 4 is applied to the other surface. An anti-corrosion sheet 5 is prepared, which is composed of a diaphragm 1 having a large number of cuts 2, on which a coating film No. 3 is formed, and a coating film of a hardening agent 4 is formed on the other surface. Such anti-corrosion sheet 5
The preparation can be carried out in advance at the factory.
上述のようにして調製された防食シート５を、第１図（
ロ）および第２図（ロ）に矢印で示すように、切り込み
２に対し直角方向に引っばりながら、水中硬化型樹脂３
の塗膜を下にして、水中の鋼構造物６の表面に貼布する
。この結果、切り込み２０部分に小孔７が形成される。The anticorrosive sheet 5 prepared as described above is shown in FIG.
As shown by the arrows in Figure 2 (B) and Figure 2 (B), the underwater curing resin 3
The film is applied to the surface of the submerged steel structure 6 with the coating film facing down. As a result, a small hole 7 is formed in the notch 20 portion.
次いで、第１図（ハ）に示すように、防食シート５の上
面を、手、へら、こて、ローラ等でしごきながら、防食
シート５を鋼構造物６の表面に圧着する。この結果、防
食シート５の上面の硬化剤４と、防食シート５の下面の
水中硬化型樹脂３とが、小孔７を通って混合し、これに
よシ、水中硬化型樹脂３が硬化して、第１図に）に示す
ように、水中の鋼構造物６０表面に堅固な硬化防食皮膜
８が形成される。Next, as shown in FIG. 1(c), the anticorrosive sheet 5 is pressed onto the surface of the steel structure 6 while the upper surface of the anticorrosive sheet 5 is squeezed by hand, a spatula, a trowel, a roller, or the like. As a result, the curing agent 4 on the upper surface of the anti-corrosion sheet 5 and the underwater curable resin 3 on the lower surface of the anti-corrosion sheet 5 mix through the small holes 7, thereby causing the underwater curable resin 3 to harden. As shown in FIG. 1), a hardened anti-corrosion film 8 is formed on the surface of the submerged steel structure 60.
水中硬化型樹脂としては例えば無溶剤型エポキシ樹脂が
使用され、硬化剤としては例えばポリアミド系硬化剤が
使用される。水中硬化型樹脂および硬化剤は、隔膜１に
厚く塗布し得るように、１００００ ポイズ以上の高
粘度を有するノクテ状またはクリーム状であることが望
ましい。As the underwater curable resin, for example, a solvent-free epoxy resin is used, and as the hardening agent, for example, a polyamide hardening agent is used. The underwater curable resin and curing agent are desirably in the form of a cream or cream having a high viscosity of 10,000 poise or more so that they can be thickly applied to the diaphragm 1.
隔膜１として、上述したポリエステル、ウレタン等のプ
ラスチックのほか、合成コゝム、または、鉄、銅、アル
ミニウム等の金属を使用することができる。なお、エポ
キシ樹脂の密着性の良い隔膜が好ましい。隔膜１として
金属を使用する場合には、アルミニウムのように、鋼よ
シも卑な電位の金属を使用すると、施工後に万一塗膜に
欠陥が生じた場合でも、電気防蝕効果が得られる。As the diaphragm 1, in addition to the above-mentioned plastics such as polyester and urethane, synthetic combs or metals such as iron, copper, and aluminum can be used. Note that a diaphragm with good adhesion of epoxy resin is preferable. When using metal as the diaphragm 1, if a metal such as aluminum, which has a lower potential than steel, is used, an electrical corrosion protection effect can be obtained even if a defect occurs in the coating film after construction.
また、第３図（イ）に示すように、隔膜１１として、縦
糸９と横糸１０とからなる繊維状の織物を使用してもよ
い。このような織物からなる隔膜を使用するときは、切
り込みを入れる必要はなく、第３図（ロ）に示すように
、縦糸９を引っばることにより、縦糸９と横糸１０との
間に多数の小孔７が形成される。なお、縦糸９は、ポリ
ウレタン等の伸びやすい材料であることが好ましい。Further, as shown in FIG. 3(A), a fibrous fabric made of warp threads 9 and weft threads 10 may be used as the diaphragm 11. When using a diaphragm made of such a fabric, there is no need to make incisions, and by pulling the warp threads 9, a large number of holes are created between the warp threads 9 and the weft threads 10, as shown in Figure 3 (B). A small hole 7 is formed. Note that the warp threads 9 are preferably made of an easily stretchable material such as polyurethane.
第４図（イ）（ロ）（ハ）に）は、この発明の方法の第
２実施態様を示す工程図である。第２実施態様の方法に
おいては、第４図（イ）に示すように、多数の小孔７を
有するガーゼ状の布または不織布からなる隔膜１２の一
方の表面に水中硬化型樹脂３を塗布して、水中便化型樹
脂３の塗膜が形成された第１の防食シート１３と、同じ
く多数の小孔７を有するガーゼ状の布または不織布から
なる隔膜１２′の一方の表面に硬化剤４を塗布して、硬
化剤４の塗膜が形成された第２の防食シート１４とを調
製する。このような第１の防食シート１３および第２の
防食シート１４の調製は、第１実施態様の防食シート５
と同じように、予め工場において行なうことができる。FIGS. 4(A), 4(B), and 4(C) are process diagrams showing a second embodiment of the method of the present invention. In the method of the second embodiment, as shown in FIG. 4(a), an underwater curable resin 3 is applied to one surface of a diaphragm 12 made of gauze-like cloth or nonwoven fabric having a large number of small holes 7. Then, a curing agent 4 is applied to one surface of the first anticorrosive sheet 13 on which a coating film of the submersible resin 3 is formed, and a diaphragm 12' made of a gauze-like cloth or nonwoven fabric having a large number of pores 7. A second anticorrosive sheet 14 on which a coating film of the curing agent 4 is formed is prepared. The preparation of the first anti-corrosion sheet 13 and the second anti-corrosion sheet 14 is based on the anti-corrosion sheet 5 of the first embodiment.
This can be done in advance at the factory in the same way.
上述のようにして調製された第１の防食シート１３を第
４図（ロ）に示すように鋼構造物６の表面に貼付し、次
いで、第４図（ハ）に示すように、第１の防食シート１
３の表面に第２の防食シート１４を貼付する。そして、
第２の防食シート１４の上面を、手、へら、こて、ロー
ラ等でしごきながら、第１の防食シート１３および第２
の防食シート１４を鋼構造物６の表面に圧着する。この
結果、第２の防食シート１４の表面の硬化剤４と第１の
防食シート１３の表面の水中硬化型樹脂３とが、各々の
小孔７を通って混合し、これによシ、水中硬化型樹脂３
が硬化して、第４図に）に示すように、水中の鋼構造物
の表面に堅固な硬化防食皮膜８が形成される。The first anti-corrosion sheet 13 prepared as described above is applied to the surface of the steel structure 6 as shown in FIG. anti-corrosion sheet 1
A second anti-corrosion sheet 14 is attached to the surface of 3. and,
While squeezing the upper surface of the second anti-corrosion sheet 14 with your hand, spatula, trowel, roller, etc., press the first anti-corrosion sheet 13 and the second anti-corrosion sheet.
The anti-corrosion sheet 14 is crimped onto the surface of the steel structure 6. As a result, the hardening agent 4 on the surface of the second anti-corrosion sheet 14 and the underwater curable resin 3 on the surface of the first anti-corrosion sheet 13 mix through the respective small holes 7, and thereby Curing resin 3
is cured, and a hardened anti-corrosion film 8 is formed on the surface of the submerged steel structure, as shown in Fig. 4).
第１の防食シート１３および第２の防食シート１４の、
鋼構造物６の表面に対する貼付順序は、どちらが先であ
ってもよい。of the first anti-corrosion sheet 13 and the second anti-corrosion sheet 14,
The order of attachment to the surface of the steel structure 6 may be in any order.
なお、現地のヤード等において、第１の防食シート１３
と第２の防食シート１４とを予め重ね合わせ、両者をロ
ーラ等によってしごき、水中硬化型樹脂３と硬化剤４と
を混合した後、水中の鋼構造物の表面に貼付してもよい
。Note that the first anti-corrosion sheet 13 is
and the second anticorrosion sheet 14 may be overlapped in advance, and both may be pressed with a roller or the like, and the underwater curable resin 3 and the hardening agent 4 may be mixed, and then attached to the surface of the steel structure underwater.
また、上述した第１実施態様および第２実施態様におけ
る防食シートは、テープ状であってもよい。Moreover, the anticorrosion sheet in the first embodiment and the second embodiment described above may be in the form of a tape.
以上述べたように、この発明の方法によれば、下記のよ
うな工業上優れた効果がもたらされる。As described above, according to the method of the present invention, the following industrially excellent effects are brought about.
（１） 水中の鋼構造物に対し、予め調製された防食
シートを貼布するだけで均一な厚さの硬化防食皮膜を形
成することができ、完全な防食効果が得られるから、作
業が極めて容易でラシ、能率的である。(1) A hardened anti-corrosion film of uniform thickness can be formed by simply applying a pre-prepared anti-corrosion sheet to a steel structure in water, resulting in a complete anti-corrosion effect, making the work extremely easy. Easy, simple and efficient.
（２） 隔膜が樹脂を拘束するので、樹脂の硬化まで
に波浪等により樹脂が溶出したり剥落することがない。(2) Since the diaphragm restrains the resin, the resin will not be eluted or peeled off due to waves or the like before the resin hardens.
（３） 予め工場において防食シートを調製しておく
ことができ、水中硬化型樹脂と硬化剤との混合は、鋼構
造物に対し防食シートを貼布した後に行なわれるので、
可使時間の制限がなく、且つ、上述した混合は、貼布さ
れた防食シートを、手、へら、こて、ローラ等で押しつ
けるだけでよいから、現場での撹拌混合作業が不要であ
り、手間がかからない。(3) The anti-corrosion sheet can be prepared in advance at the factory, and the underwater curing resin and curing agent are mixed after the anti-corrosion sheet is applied to the steel structure.
There is no limit on pot life, and the above-mentioned mixing can be done by simply pressing the applied anticorrosion sheet with your hands, spatula, trowel, roller, etc., so there is no need for stirring and mixing on site. It does not take time and effort.
（４）樹脂が硬化して堅固な硬化防食皮膜が形成される
ので、高価な防食カバーが不要であシ、且つ、従来の方
法のようにペトロラタムの溶出や、防食カバーの離脱等
が生ずることはない。(4) Since the resin hardens and a hardened anti-corrosion film is formed, there is no need for an expensive anti-corrosion cover, and unlike conventional methods, elution of petrolatum and detachment of the anti-corrosion cover do not occur. There isn't.
第１図（イ）（ロ）（ハ）に）はこの発明の方法の第１
実施態様を示す工程図、第２図（イ）（ロ）は第１実施
態様において使用される＠膜の一例を示す正面図、第３
図（イ）（ロ）は第１実施態様において使用される隔膜
の他の例を示す正面図、第４図（イ）（ロ）（ハ）に）
はこの発明の方法の第２実施態様を示す工程図である。
図面において、
１・・・隔膜、 ２・・・切り込み、３・・
・水中硬化型樹脂、 ４・・・硬化剤、５・・・防食シ
ート、 ６・・・鋼構造物、７・・・小孔、
８・・・硬化防食皮膜、９・・・縦糸、
１０・・・横糸、１１．１２・・・隔膜、 １３
・・・第１の防食ソート、１４・・・第２の防食シート
。Figure 1 (a), (b), and (c) show the first method of this invention.
2(a) and 2(b) are front views showing an example of the @ membrane used in the first embodiment;
Figures (A) and (B) are front views showing other examples of the diaphragm used in the first embodiment, and Figures (A), (B), and (C) are)
FIG. 2 is a process diagram showing a second embodiment of the method of the present invention. In the drawings, 1...diaphragm, 2...notch, 3...
・Underwater curable resin, 4... Hardening agent, 5... Anticorrosion sheet, 6... Steel structure, 7... Small hole,
8... Hardened anti-corrosion film, 9... Warp,
10... Weft, 11.12... Diaphragm, 13
...first anti-corrosion sorting, 14...second anti-corrosion sheet.
Claims (5)
表面に硬化剤が塗布された、多数の小孔が形成される隔
膜からなる防食シートを調製し、鋼構造物の表面に前記
防食シートを貼布し、このように貼布することによつて
前記隔膜に生じた多数の小孔を通し、前記隔膜の一方の
表面に塗布された水中硬化型樹脂と、前記隔膜の他方の
表面に塗布された硬化剤とを混合して硬化せしめ、かく
して、前記鋼構造物の表面に、硬化防食皮膜を形成する
ことを特徴とする、鋼構造物に対する防食方法。(1) Prepare an anti-corrosion sheet consisting of a diaphragm in which a large number of small holes are formed, one surface of which is coated with an underwater curable resin, and the other surface of which is coated with a hardening agent. An anti-corrosion sheet is applied, and the underwater curable resin applied to one surface of the diaphragm and the other surface of the diaphragm are passed through a large number of small holes created in the diaphragm by applying it in this way. 1. A method for preventing corrosion of a steel structure, which comprises mixing and curing a hardening agent applied to the surface of the steel structure, thereby forming a hardened anticorrosive film on the surface of the steel structure.
ることを特徴とする、特許請求の範囲第（１）項に記載
の鋼構造物に対する防食方法。(2) The corrosion prevention method for a steel structure according to claim (1), wherein the diaphragm is made of a sheet having a large number of cuts.
請求の範囲第（１）項に記載の鋼構造物に対する防食方
法。(3) The corrosion prevention method for a steel structure according to claim (1), wherein the diaphragm is made of a woven fabric.
の小孔を有する隔膜からなる第１の防食シートと、一方
の表面に硬化剤が塗布された、多数の小孔を有する隔膜
からなる第２の防食シートとを調製し、鋼構造物の表面
に前記第１の防食シートおよび前記第２の防食シートを
互いに重ね合わせて貼布し、このように貼布することに
よつて前記第１の防食シートの隔膜および前記第２の防
食シートの隔膜の多数の小孔を通し、前記第１の隔膜に
塗布された前記水中硬化型樹脂と、前記第２の隔膜に塗
布された前記硬化剤とを混合して硬化せしめ、かくして
、前記鋼構造物の表面に、硬化防食皮膜を形成すること
を特徴とする、鋼構造物に対する防食方法。(4) A first anti-corrosion sheet consisting of a diaphragm with many small holes, one surface of which is coated with an underwater curable resin, and one surface of which is coated with a hardening agent, a diaphragm with many small holes. By preparing a second anti-corrosion sheet consisting of The underwater curable resin coated on the first diaphragm and the second diaphragm are passed through a large number of small holes in the diaphragm of the first anti-corrosion sheet and the diaphragm of the second anti-corrosion sheet. A method for preventing corrosion of a steel structure, the method comprising: mixing the above-mentioned curing agent and curing the steel structure, thereby forming a hardened anti-corrosion film on the surface of the above-mentioned steel structure.
とする特許請求の範囲第（４）項に記載の鋼構物に対す
る防食方法。(5) The corrosion prevention method for a steel structure according to claim (4), wherein the diaphragm is made of a woven fabric or a non-woven fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30867086A JPS63162075A (en) | 1986-12-26 | 1986-12-26 | Method for preventing corrosion of steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30867086A JPS63162075A (en) | 1986-12-26 | 1986-12-26 | Method for preventing corrosion of steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63162075A true JPS63162075A (en) | 1988-07-05 |
Family
ID=17983870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30867086A Pending JPS63162075A (en) | 1986-12-26 | 1986-12-26 | Method for preventing corrosion of steel structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63162075A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006087462A (en) * | 2004-09-21 | 2006-04-06 | Zenjiro Shiozu | Bonding structure between skin side and ball side of ball for ball game |
-
1986
- 1986-12-26 JP JP30867086A patent/JPS63162075A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006087462A (en) * | 2004-09-21 | 2006-04-06 | Zenjiro Shiozu | Bonding structure between skin side and ball side of ball for ball game |
| JP4656898B2 (en) * | 2004-09-21 | 2011-03-23 | 善治郎 潮津 | Adhesion method between outer skin side and ball side in ball game balls |
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