JPH0251990B2 - - Google Patents

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Publication number
JPH0251990B2
JPH0251990B2 JP61216475A JP21647586A JPH0251990B2 JP H0251990 B2 JPH0251990 B2 JP H0251990B2 JP 61216475 A JP61216475 A JP 61216475A JP 21647586 A JP21647586 A JP 21647586A JP H0251990 B2 JPH0251990 B2 JP H0251990B2
Authority
JP
Japan
Prior art keywords
tape
corrosion
adhesive
anticorrosion
metal
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.)
Expired - Lifetime
Application number
JP61216475A
Other languages
Japanese (ja)
Other versions
JPS6372891A (en
Inventor
Nobuatsu Terao
Tatsuji Kasashima
Yasushi Torigoe
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 Cable Industries Ltd
Original Assignee
Mitsubishi Cable Industries Ltd
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 Mitsubishi Cable Industries Ltd filed Critical Mitsubishi Cable Industries Ltd
Priority to JP61216475A priority Critical patent/JPS6372891A/en
Priority to KR1019870009694A priority patent/KR900009043B1/en
Priority to GB8721150A priority patent/GB2194903B/en
Publication of JPS6372891A publication Critical patent/JPS6372891A/en
Priority to SG629/90A priority patent/SG62990G/en
Publication of JPH0251990B2 publication Critical patent/JPH0251990B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/16Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings the coating being in the form of a bandage
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22Plastics; Metallised plastics
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23FNON-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
    • C23F13/00Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23FNON-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
    • C23F13/00Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/22Monitoring arrangements therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04Coatings characterised by the materials used
    • F16L58/08Coatings characterised by the materials used by metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Adhesive Tapes (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Decoration Of Textiles (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

(産業上の利用分野) 本発明は電気防食の効力を有する新しい防食テ
ープに関するものである。 (従来技術と問題点) 従来より気中、海水中、土壌中の腐食性環境下
で使用される各種金属物の防食材料として、
「JISZ1901防食用ビニール粘着テープ」その他こ
れに類する防食テープが多く使われてきた。 これらの防食テープは金属物の製造時又は現場
施工時に巻かれるが、テープ巻き処理が不完全で
あつたり、或は長期使用によつてラツプ部分から
水分が侵入し、腐食を発生することがある。この
ため防食の信頼性を高めるために、テープ巻き処
理に当たつてアンダーコート或は充填剤を塗布し
て水の侵入を防ぐ方法もとられているが、作業性
が困難となり、又経済性に乏しい。 一方金属物の電気的防食法として流電陽極法が
ある。流電陽極法は電極電位が低く、流電特性の
すぐれた金属例えばマグネシウム、アルミニウ
ム、亜鉛又はこれらの合金(流電陽極と呼ぶ)を
被防食金属物と電気的に接続し、この間に発生す
る防食電流によつて金属を防食しようとするもの
である。 さて従来の防食テープはポリエチレン、ポリ塩
化ビニル等の延伸性プラスチツクシートに感圧接
着剤を塗布したものであり、水蒸気透過率、吸水
率共に小さく、シート面からの水蒸気又は水の透
過はラツプ部分からの侵入に比べて極く僅かであ
る。従つて腐食の発生を防ぐには防食テープのラ
ツプ部分からの水分の侵入を防げばよいことにな
るが、テープ巻きの構成上これを完全に行なうの
は不可能に近い。 そこで若し防食テープのラツプ部分から水分が
侵入しても電気的防食法によつて腐食の発生を妨
げれば好都合である。 (発明の目的) 本発明の目的は防食テープのラツプ部分或はシ
ート面から被防食金属物に水分が侵入しても、電
気防食の効果により腐食の発生を防ぐことのでき
る防食テープを提供することにある。 (発明の構成) 本発明は長尺プラスチツクシートの片面に接着
剤を塗布し、その接着面の一方と他方の側縁に隣
接して接着糊しろ部分を設け、両接着糊しろ部分
の間に電気防食用流電陽極金属の微小粒を長手方
向に連続的に貼着していることを特徴とする防食
テープである。 (実施例の説明) 以下図面により本発明を説明する。第1図及び
第2図は本発明に係る防食テープの一実施例を示
している。第1図は本実施例におけるテープの平
面図であり、第2図はその断面図である。第1図
及び第2図において、1はポリエチレン、ポリ塩
化ビニル等を素材とした延伸性を有する長尺プラ
スチツクシート、2は上記シート1の片面に塗布
した感圧接着剤(粘着剤)であり、これらシート
1及び感圧接着剤2はJISZ1901の防食用ビニル
粘着テープを使用することもできる。3はマグネ
シウム、アルミニウム、亜鉛又はこれらの合金か
らなる電気防食用流電陽極金属の微小粒であり、
これら金属微小粒3は長尺プラスチツクシート1
の接着剤2の表面(接着面)の一部、具体的には
一方の側縁4に僅かな隙間L1を隔てて隣接した
一定幅L2の部分に長手方向に連続して(略密着
状に)貼着してある。第1図中の2a,2bはそ
れぞれ幅L1,L3の接着糊しろ部分である。
L1,L2は例えば、シート1の幅L=50mmの時、
L1=5mm、L2=25mmである。この流電陽極の微
小粒3の形状はいずれであつてもよいが、プラス
チツクシート1への食い込みを避けるため、鋭い
切り口や突起のない丸味を持つた形状のものが望
ましい。又この流電陽極の微小粒3の大きさはプ
ラスチツクシート1への食い込みを避けるために
は小さい方が望ましいが、一方流電陽極の効果を
長期間発揮させるため、最少必要限度の大きさが
確保されなければならない。流電陽極の微小粒と
しては例えば亜鉛粒を用いる場合、1粒当り0.01
mg(等価球径約0.14mm)程度の粒が使用できる。
なお、上記微小粒金属粒3のプラスチツクシート
1における接着面への貼着手段としては、例えば
圧縮空気利用の吹付け方式を採用できる。 次に第3図及び第4図は本発明に係る防食テー
プの一実施例においてテープを所定の伸び率で延
伸した状態を示している。第3図はその平面図で
あり、第4図はその断面図である。 第3図に示すように流電陽極の微小粒3はプラ
スチツクシート1の延伸にともなつて長手方向に
分散するが、プラスチツクシート1の伸び率が一
定であれば、微小粒3の分散の割合も均等になる
から、この微小粒3による電気防食作用も各部分
均等に及ぶことになる。 上記の構成らなる本発明防食テープTは第5図
に示すように被防食金属物例えば金属パイプPの
外周長手方向にその接着面即ち流電電極の微小粒
3の貼着面をパイプP側に向けてテープの重ね率
1/2ラツプで巻装する場合に特に適している。即
ち流電陽極の微小粒3が貼着されている側を先行
させて所定の張力を与えながらテープの重ね率1/
2ラツプで巻装すれば流電陽極の微小粒3はパイ
プPの外周長手方向に均等に分散して固定される
形となり、又微小粒が貼着されていない幅L1
L3の接着糊しろ部分2a,2bを設けているた
め押え巻きの効果があり、水分の侵入防止に関し
ても従来の防食テープと同等の効果が保持され
る。この場合流電陽極の微小粒3はプラスチツク
シート1の面圧によつて金属パイプPに圧着した
状態で保持されるため、微小粒3と金属パイプP
との間の電気的接触状態は極めて良好であり、電
気防食作用が十分に発揮される。即ちもし防食テ
ープのラツプ部分或はシート面から金属パイプの
表面に水分が侵入しても、金属パイプが陰極、微
小粒が陽極となつて電池が形成されて、防食電流
が発生するから、微小粒が存在する限り、金属パ
イプ表面は腐食を発生することなく、引続いて防
食状態が維持される。 以上本発明に係る防食テープの一実施例を示し
たが、防食テープの接着面に貼着する流電陽極の
微小粒の貼着幅を任意に変えることによつて、テ
ープの重ね率を1/2ラツプのみならず例えば1/3ラ
ツプ、1/4ラツプ等で巻装するのに適した防食テ
ープの構成にすることも可能であり、これらはす
べて本発明の範疇に属する。 次に本発明に係る防食テープの好ましい仕様例
を第1表に示す。
(Industrial Application Field) The present invention relates to a new anticorrosion tape having cathodic protection effects. (Prior art and problems) Conventionally, it has been used as an anti-corrosion material for various metals used in corrosive environments such as air, seawater, and soil.
``JISZ1901 anticorrosion vinyl adhesive tape'' and other similar anticorrosion tapes have been widely used. These anti-corrosion tapes are wrapped during the manufacturing of metal products or on-site construction, but if the tape wrapping is incomplete or after long-term use, moisture may enter from the lapped area and cause corrosion. . For this reason, in order to improve the reliability of corrosion protection, methods are used to prevent water intrusion by applying an undercoat or filler during tape winding, but this makes work difficult and economical. Poor. On the other hand, there is a galvanic anodic method as a method for electrically protecting metal objects. In the galvanic anode method, a metal with a low electrode potential and excellent galvanic properties, such as magnesium, aluminum, zinc, or an alloy thereof (called a galvanic anode), is electrically connected to the metal object to be protected, and the corrosion that occurs during this process is It attempts to protect metals from corrosion using anti-corrosion current. Conventional anticorrosion tapes are made by applying a pressure-sensitive adhesive to a stretchable plastic sheet made of polyethylene, polyvinyl chloride, etc., and both water vapor permeability and water absorption are low, and water vapor or water permeates from the sheet surface only at the lap portions. This is extremely small compared to the invasion from Japan. Therefore, in order to prevent the occurrence of corrosion, it is sufficient to prevent moisture from entering through the wrap portion of the anticorrosion tape, but due to the structure of the tape winding, it is almost impossible to do this perfectly. Therefore, even if moisture infiltrates through the lap portion of the anticorrosive tape, it would be advantageous to prevent the occurrence of corrosion by electrolytic corrosion protection. (Object of the Invention) The object of the present invention is to provide an anti-corrosion tape that can prevent corrosion due to the effect of cathodic protection even if moisture intrudes into the metal object to be protected from corrosion through the wrap portion or sheet surface of the anti-corrosion tape. There is a particular thing. (Structure of the Invention) The present invention applies an adhesive to one side of a long plastic sheet, provides adhesive margins adjacent to one side edge and the other side edge of the adhesive surface, and provides adhesive margins between both adhesive margins. This anti-corrosion tape is characterized by having minute particles of galvanic anode metal for electrolytic protection continuously adhered in the longitudinal direction. (Description of Examples) The present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an embodiment of the anticorrosive tape according to the present invention. FIG. 1 is a plan view of the tape in this embodiment, and FIG. 2 is a sectional view thereof. In FIGS. 1 and 2, 1 is a stretchable long plastic sheet made of polyethylene, polyvinyl chloride, etc., and 2 is a pressure-sensitive adhesive (adhesive) coated on one side of the sheet 1. For these sheet 1 and pressure-sensitive adhesive 2, anti-corrosion vinyl adhesive tape of JIS Z1901 can also be used. 3 is a microparticle of galvanic anode metal for cathodic protection consisting of magnesium, aluminum, zinc or an alloy thereof,
These metal microparticles 3 are attached to a long plastic sheet 1.
A part of the surface (adhesive surface) of the adhesive 2, specifically, a part of a certain width L2 adjacent to one side edge 4 with a slight gap L1 , continuously (almost in close contact) in the longitudinal direction. ) is pasted. 2a and 2b in FIG. 1 are adhesive margins having widths L1 and L3, respectively.
For example, when the width L of sheet 1 is 50 mm, L 1 and L 2 are
L 1 =5 mm, L 2 =25 mm. The microparticles 3 of the galvanic anode may have any shape, but in order to avoid digging into the plastic sheet 1, it is preferable that they have a rounded shape without sharp cuts or protrusions. Furthermore, it is desirable that the size of the microparticles 3 of this galvanic anode be small in order to avoid digging into the plastic sheet 1, but on the other hand, in order to exhibit the effect of the galvanic anode for a long period of time, the minimum necessary size is must be secured. For example, when using zinc grains as the fine grains of the galvanic anode, each grain has a density of 0.01
Particles of about mg (equivalent spherical diameter approximately 0.14 mm) can be used.
In addition, as a means for attaching the fine metal particles 3 to the adhesive surface of the plastic sheet 1, for example, a spraying method using compressed air can be adopted. Next, FIGS. 3 and 4 show a state where the tape is stretched at a predetermined elongation rate in an embodiment of the anticorrosive tape according to the present invention. FIG. 3 is a plan view thereof, and FIG. 4 is a sectional view thereof. As shown in FIG. 3, the microparticles 3 of the galvanic anode are dispersed in the longitudinal direction as the plastic sheet 1 is stretched, but if the elongation rate of the plastic sheet 1 is constant, the proportion of dispersion of the microparticles 3 is Since the corrosion resistance is also uniform, the electrolytic protection effect of the microparticles 3 is evenly applied to each part. As shown in FIG. 5, the anticorrosion tape T of the present invention having the above-mentioned structure has its adhesion surface, that is, the surface to which the microparticles 3 of the current electrode are attached, facing the pipe P in the longitudinal direction of the outer periphery of a metal object to be protected from corrosion, such as a metal pipe P. It is particularly suitable for winding with a tape overlap ratio of 1/2 wrap towards the end of the tape. That is, with the side to which the fine particles 3 of the galvanic anode are attached first, and while applying a predetermined tension, the overlap ratio of the tape is 1/1.
If wrapped in two laps, the microparticles 3 of the galvanic anode will be evenly distributed and fixed in the longitudinal direction of the outer periphery of the pipe P, and the width L 1 , where the microparticles are not attached, will be fixed.
Since the adhesive margin portions 2a and 2b of L3 are provided, there is a pressing effect, and the same effect as the conventional anti-corrosion tape is maintained in terms of preventing moisture from entering. In this case, the microparticles 3 of the galvanic anode are held in a crimped state on the metal pipe P by the surface pressure of the plastic sheet 1, so that the microparticles 3 and the metal pipe P
The electrical contact between the two is extremely good, and the cathodic protection effect is fully exhibited. In other words, even if moisture infiltrates the surface of the metal pipe from the wrap or sheet surface of the anticorrosion tape, the metal pipe becomes the cathode and the minute particles act as the anode, forming a battery and generating an anticorrosion current. As long as the particles are present, the surface of the metal pipe will not corrode and will continue to remain in a corrosion-protected state. An embodiment of the anticorrosion tape according to the present invention has been described above. By arbitrarily changing the adhesion width of the microparticles of the galvanic anode that is adhered to the adhesive surface of the anticorrosion tape, the overlapping ratio of the tape can be increased to 1. It is also possible to configure the anticorrosive tape to be suitable for wrapping not only with a /2 wrap but also with a 1/3 wrap, a 1/4 wrap, etc., and all of these fall within the scope of the present invention. Next, Table 1 shows preferred examples of specifications for the anticorrosive tape according to the present invention.

【表】【table】

【表】 第1表に示す仕様例ではこの防食テープの被防
食金属物である金属パイプに重ね率1/2ラツプ、
伸び率10%で装着した場合、金属パイプの表面に
固定される亜鉛粒の重量は1cm2当り約0.04gにな
る。この量は金属パイプの表面を亜鉛めつきした
場合の亜鉛の付着量に匹適する。このように防食
テープの本来の防食効果に加えて亜鉛めつき相当
の電気防食効果が付加されるのでその防食に関す
る信頼性は著しく向上する。 又この防食テープを金属パイプに所定の伸び率
で装着する場合、テープの引張りに要する力は前
述した従来の防食テープにおけるそれと略同等で
あり、又テープ巻き作業は、微小粒亜鉛粒として
いるために亜鉛箔小片を用いるものに比し被巻付
パイプに対する密着状態を滑らかなものになし得
ると共に従来の防食テープにおけるそれと全く同
様な作業で事足り、特別の技術及び工具を必要と
しない。 (発明の効果) 以上述べた通り本発明に係る防食テープは、テ
ープの密着性と接着性により従来の防食テープと
同等の防食効果を示し、もし被防食金属物へ水分
が侵入しても、電気防食用陽極金属の微小粒の防
食効果により引続き防食状態を維持させることが
できる。このように特別の施工技術なくして、防
食に関する信頼性を著しく向上させることのでき
る利点がある。更に本発明においては微小粒3が
貼着されていない幅L1,L3の接着糊しろ部分
2a,2bを設けているため押え巻きの効果があ
り、水分の侵入防止に関しても従来の防食テープ
と同等の効果を保持し得る利点がある。
[Table] In the specification example shown in Table 1, the corrosion protection tape is applied to the metal pipe, which is the metal object to be protected, with an overlap ratio of 1/2 lap,
When installed with an elongation rate of 10%, the weight of the zinc particles fixed on the surface of the metal pipe is approximately 0.04 g per 1 cm 2 . This amount is comparable to the amount of zinc deposited when the surface of a metal pipe is galvanized. In this way, in addition to the original anticorrosion effect of the anticorrosion tape, a cathodic protection effect equivalent to that of galvanizing is added, so that the reliability regarding corrosion protection is significantly improved. Furthermore, when this anti-corrosion tape is attached to a metal pipe at a predetermined elongation rate, the force required to pull the tape is approximately the same as that for the conventional anti-corrosion tape mentioned above, and the tape is wound with fine zinc particles. It is possible to achieve a smoother adhesion to the pipe to be wrapped than when using small pieces of zinc foil, and the work is exactly the same as that for conventional anti-corrosion tapes, and special techniques and tools are not required. (Effects of the Invention) As described above, the anti-corrosion tape according to the present invention exhibits the same anti-corrosion effect as conventional anti-corrosion tapes due to the adhesiveness and adhesion of the tape, and even if moisture intrudes into the metal object to be protected, The anti-corrosion state can be maintained continuously due to the anti-corrosion effect of the fine particles of the anode metal for cathodic protection. In this way, there is an advantage in that reliability regarding corrosion protection can be significantly improved without any special construction techniques. Furthermore, in the present invention, since adhesive margin parts 2a and 2b of widths L1 and L3 are provided to which the microparticles 3 are not attached, there is a pressing effect, and the prevention of moisture intrusion is equivalent to that of conventional anticorrosion tape. It has the advantage of retaining the effects of

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

第1図乃至第5図は本発明に係る防食テープの
一実施例を示す説明図であり、第1図は自然状態
に置かれている防食テープの平面図、第2図は同
じく断面図である。第3図は延伸状態に置かれて
いる防食テープの平面図、第4図は同じく断面図
である。又第5図は防食テープの巻装状況を示す
説明図である。図において、1はプラスチツクシ
ート、2は感圧接着剤、3は電気防食用流電陽極
金属の微小粒である。
1 to 5 are explanatory diagrams showing one embodiment of the anticorrosive tape according to the present invention, FIG. 1 is a plan view of the anticorrosion tape placed in a natural state, and FIG. 2 is a sectional view of the anticorrosion tape. be. FIG. 3 is a plan view of the anticorrosive tape in a stretched state, and FIG. 4 is a sectional view thereof. Moreover, FIG. 5 is an explanatory view showing the winding situation of the anticorrosion tape. In the figure, 1 is a plastic sheet, 2 is a pressure-sensitive adhesive, and 3 is a minute particle of galvanic anode metal for cathodic protection.

Claims (1)

【特許請求の範囲】[Claims] 1 長尺プラスチツクシートの片面に接着剤を塗
布し、その接着面の一方と他方の側縁に隣接して
接着糊しろ部分を設け、両接着糊しろ部分の間に
電気防食用流電陽極金属の微小粒を長手方向に連
続的に貼着していることを特徴とする防食テー
プ。
1. Apply adhesive to one side of a long plastic sheet, provide adhesive margins adjacent to one and the other side edges of the adhesive surface, and place a galvanic anode metal for cathodic protection between both adhesive margins. An anticorrosive tape characterized by having microscopic particles attached continuously in the longitudinal direction.
JP61216475A 1986-09-12 1986-09-12 Corrosion resistant tape Granted JPS6372891A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP61216475A JPS6372891A (en) 1986-09-12 1986-09-12 Corrosion resistant tape
KR1019870009694A KR900009043B1 (en) 1986-09-12 1987-09-02 Corrosion resistant tape
GB8721150A GB2194903B (en) 1986-09-12 1987-09-09 Corrosion protection tape
SG629/90A SG62990G (en) 1986-09-12 1990-07-27 Corrosion protection tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61216475A JPS6372891A (en) 1986-09-12 1986-09-12 Corrosion resistant tape

Publications (2)

Publication Number Publication Date
JPS6372891A JPS6372891A (en) 1988-04-02
JPH0251990B2 true JPH0251990B2 (en) 1990-11-09

Family

ID=16689026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61216475A Granted JPS6372891A (en) 1986-09-12 1986-09-12 Corrosion resistant tape

Country Status (4)

Country Link
JP (1) JPS6372891A (en)
KR (1) KR900009043B1 (en)
GB (1) GB2194903B (en)
SG (1) SG62990G (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05147568A (en) * 1991-11-27 1993-06-15 John Rader Homer Iii Vehicular device used both for operation and bearing

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2531744B2 (en) * 1988-05-24 1996-09-04 日本防蝕工業株式会社 Marine steel structure anticorrosion protection cover
BE1006998A3 (en) * 1993-04-20 1995-02-14 Ies A P Les Erables B W Method for removing condensate water and means for such a method.
JP2006241512A (en) * 2005-03-02 2006-09-14 Kyocera Chemical Corp Protective film for rust prevention and rust prevention method for metallic material using the same
JP5161288B2 (en) * 2010-10-27 2013-03-13 日本防蝕工業株式会社 Anode material fixing tape
KR101317722B1 (en) * 2013-05-20 2013-10-11 주식회사 아이비텍 Paper coffin rust preventing
MC200157B1 (en) * 2013-07-30 2014-02-19 3X Eng Retaining plate for reinforcement tape
MC200156B1 (en) * 2013-07-30 2014-02-19 3X Eng Improved reinforcement tape for the repair of fluid transport pipelines
JP6238449B2 (en) * 2014-03-31 2017-11-29 藤森工業株式会社 Anti-corrosion anode, anti-corrosion structure and anti-corrosion method for concrete structure using the same
CN109796897A (en) * 2019-02-23 2019-05-24 常州市顺龙宏源包装有限公司 A kind of PE protective film
CN113862680B (en) * 2020-06-30 2023-11-17 青岛经济技术开发区海尔热水器有限公司 Anode rod and water heater with same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05147568A (en) * 1991-11-27 1993-06-15 John Rader Homer Iii Vehicular device used both for operation and bearing

Also Published As

Publication number Publication date
SG62990G (en) 1990-09-07
JPS6372891A (en) 1988-04-02
KR900009043B1 (en) 1990-12-17
KR890005240A (en) 1989-05-13
GB2194903A (en) 1988-03-23
GB2194903B (en) 1990-03-28
GB8721150D0 (en) 1987-10-14

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