JPH0821591A - Anticorrossion for flange part - Google Patents
Anticorrossion for flange partInfo
- Publication number
- JPH0821591A JPH0821591A JP6153424A JP15342494A JPH0821591A JP H0821591 A JPH0821591 A JP H0821591A JP 6153424 A JP6153424 A JP 6153424A JP 15342494 A JP15342494 A JP 15342494A JP H0821591 A JPH0821591 A JP H0821591A
- Authority
- JP
- Japan
- Prior art keywords
- anticorrosion
- flange portion
- sheet
- flange part
- anticorrosion sheet
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ペトロラタムを用いた
防食シートによりフランジ部を防食施工する方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for corrosion-proofing a flange portion with a corrosion-resistant sheet using petrolatum.
【０００２】[0002]
【従来の技術】ペトロラタムを織布もしくは不織布など
の基材シートに積層してなる防食シートは、例えば実公
昭６１−４２８２２号公報に記載されており、防食効果
がすぐれているので配管等の防食に広く用いられてい
る。従来、上記防食シートを用いて配管のフランジ部を
防食施工するには、図３に示すように、防食シート７を
円形に切り取り、中央部に鋼管外径よりもやや小さい円
形の孔８を設け、外周の対称位置でＶ型の切り込み９、
９を設け、一方の切り込み９から切断部７３を設けたも
のを用いていた。2. Description of the Related Art An anticorrosion sheet obtained by laminating a petrolatum on a base material sheet such as a woven or non-woven fabric is described in, for example, Japanese Utility Model Publication No. 61-42822, and has an excellent anticorrosion effect. Widely used in. Conventionally, in order to carry out anticorrosion construction of a flange portion of a pipe using the above-mentioned anticorrosion sheet, as shown in FIG. 3, the anticorrosion sheet 7 is cut into a circle, and a circular hole 8 which is slightly smaller than the outer diameter of the steel pipe is provided in the center. , V-shaped notch at symmetrical position on the outer circumference,
9 was provided, and one cut 9 was provided with the cut portion 73.
【０００３】上記防食シート７を用いてフランジ部の防
食施工するには、防食シート７の切断部７３を開いて鋼
管を通し、その片面をフランジ部の側面に貼り付け、切
り込み９の深さに相当する周縁部７１をフランジ部の外
周端縁で折り曲げて該周縁部７１をフランジ部の外周面
に貼り付ける。フランジ部の他の側からも同様の防食シ
ートを貼り付け、両側の防食シートの他端部をフランジ
部外周面で重ねることにより被覆していた。To perform anticorrosion construction on the flange portion using the above-mentioned anticorrosion sheet 7, the cut portion 73 of the anticorrosion sheet 7 is opened and a steel pipe is passed through, one side of which is attached to the side surface of the flange portion and the depth of the cut 9 is made. The corresponding peripheral portion 71 is bent at the outer peripheral edge of the flange portion and the peripheral portion 71 is attached to the outer peripheral surface of the flange portion. A similar anticorrosion sheet was attached from the other side of the flange portion, and the other end portions of the anticorrosion sheets on both sides were covered by overlapping the outer peripheral surface of the flange portion.
【０００４】[0004]
【発明が解決しようとする課題】上記従来の施工方法に
よると、フランジ部の直径にフランジ部外周面幅及び鋼
管に被覆する幅を加えた大きさの防食シートが必要であ
る。しかし、防食シートの製品幅には制限があり、製品
幅を超える大きさのフランジ部には適用できない。又、
フランジ部のサイズを測り防食シートの寸法取りを行
い、円形に切り取り、さらにＶ型の切り込みと切断部を
設けるという手間を要した。その上、円形寸法の大きな
防食シートは取扱い難く施工性が非常に悪いという問題
もあった。According to the above-mentioned conventional construction method, it is necessary to provide an anticorrosion sheet having a size including the diameter of the flange portion and the width of the outer peripheral surface of the flange portion and the width for covering the steel pipe. However, since the product width of the anticorrosion sheet is limited, it cannot be applied to the flange portion having a size exceeding the product width. or,
It took time and labor to measure the size of the flange portion, dimension the anticorrosion sheet, cut it into a circle, and further provide a V-shaped notch and a cut portion. In addition, there is a problem that the anticorrosion sheet having a large circular dimension is difficult to handle and the workability is very poor.
【０００５】本発明は上記従来の問題点を解消し、現場
での寸法取りや切り取り作業が不要で、各種サイズのフ
ランジ部に対応でき、寸法表がなくても能率的に施工す
ることのできるフランジ部の防食施工方法を提供するこ
とを目的とする。The present invention solves the above-mentioned problems of the prior art, does not require dimensioning and cutting work on site, can accommodate flanges of various sizes, and can be efficiently constructed without a dimension table. It is an object of the present invention to provide an anticorrosion construction method for a flange portion.
【０００６】[0006]
【課題を解決するための手段】本発明フランジ部の防食
施工方法は、防食シートを用いて配管のフランジ部を防
食被覆するにあたり、フランジ部の外周面に防食シート
を巻き付け、該防食シートをフランジ部の外周端縁に沿
って折り曲げてフランジ部側面に貼り付け、次いで鋼管
の外面にかけて巻き付けることを特徴とするものであ
る。According to the present invention, there is provided an anticorrosion construction method for a flange portion, which comprises coating an anticorrosion sheet on a flange portion of a pipe with an anticorrosion sheet by winding the anticorrosion sheet around the outer peripheral surface of the flange portion. It is characterized in that it is bent along the outer peripheral edge of the section, attached to the side surface of the flange section, and then wound around the outer surface of the steel pipe.
【０００７】本発明方法を実施するには、２枚の防食シ
ートを用いて、１枚の防食シートの一端縁をフランジ部
の外周面に巻き付け、該防食シートでフランジ部の側面
から鋼管にかけて被覆し、他の防食シートの一端縁を先
の防食シートの端縁に重ねてフランジ部の外周面に巻き
付け、同様に該フランジ部の他の側面を被覆すればよ
い。この場合、防食シートの大きさは、一辺がフランジ
部の外周の長さであり、他の辺が該フランジ部部の立ち
上がり及び鋼管に至る長さを有する四角形のものを用い
ればよい。To carry out the method of the present invention, two sheets of anticorrosion sheet are used, one end edge of one sheet of anticorrosion sheet is wrapped around the outer peripheral surface of the flange portion, and the anticorrosion sheet covers from the side surface of the flange portion to the steel pipe. Then, one end edge of the other anticorrosion sheet may be overlapped with the end edge of the preceding anticorrosion sheet and wound around the outer peripheral surface of the flange portion, and similarly, the other side surface of the flange portion may be covered. In this case, the size of the anticorrosion sheet may be a quadrangle having one side having the length of the outer circumference of the flange portion and the other side having the length of the flange portion rising and reaching the steel pipe.
【０００８】又、フランジ部の両面を被覆できる大きさ
の防食シート１枚を使用して、該防食シートの中央部を
フランジ部の外周面に巻き付け、両側の防食シートをフ
ランジ部の外周端縁で折り曲げ、フランジ部側面に沿っ
て貼り付けながら被覆してもよい。この場合の防食シー
トの大きさは、一辺がフランジ部の外周の長さであり、
他の辺は一方の鋼管からフランジ部の両側面を経て他方
の鋼管に至る長さを有する四角形のものを用いればよ
い。Further, using one anticorrosion sheet having a size capable of covering both sides of the flange portion, the central portion of the anticorrosion sheet is wound around the outer peripheral surface of the flange portion, and the anticorrosion sheets on both sides are attached to the outer peripheral edge of the flange portion. It may be bent by, and covered while being attached along the side surface of the flange portion. The size of the anticorrosion sheet in this case, one side is the length of the outer circumference of the flange portion,
The other side may be a quadrangular one having a length from one steel pipe to both sides of the flange portion to the other steel pipe.
【０００９】上記いずれの場合でも、防食シートの一辺
がフランジ部の外周長さよりも短い場合には、外周方向
で数枚の防食シートを使用すればよい。従って、防食シ
ートの一辺は必ずしもフランジ部の外周の長さである必
要はなく、外周長さより短くても施工でき、従来のよう
にフランジ部の大きさに合わせた切り取り作業などが不
要であり、防食シートの製品幅に関係なく施工できる。In any of the above cases, when one side of the anticorrosion sheet is shorter than the outer peripheral length of the flange portion, several anticorrosion sheets may be used in the outer peripheral direction. Therefore, one side of the anticorrosion sheet does not necessarily have to be the length of the outer circumference of the flange portion, and it can be installed even if it is shorter than the outer circumference length, and there is no need for cutting work or the like according to the size of the flange portion as in the conventional case. It can be applied regardless of the product width of the anticorrosion sheet.
【００１０】フランジ部の外周から鋼管へ防食シートを
包み込むように被覆すると、径の縮小に伴い防食シート
にひだが生じる。このひだはペトロラタム等の防食性組
成物面同士を貼り合わせ、フランジ部及び鋼管の外面へ
倒しておけばよい。上記のようにしてフランジ部から鋼
管にかけて被覆した防食シートの外側から、従来どおり
保護用の粘着テープを巻き付ければ施工は完了する。When the corrosion prevention sheet is wrapped from the outer periphery of the flange portion to the steel pipe, a fold is formed on the corrosion prevention sheet as the diameter decreases. The pleats may be formed by sticking the surfaces of the anticorrosive composition such as petrolatum to each other and laying them down on the flange portion and the outer surface of the steel pipe. The construction is completed by wrapping a protective adhesive tape as usual from the outside of the anticorrosion sheet coated from the flange portion to the steel pipe as described above.
【００１１】[0011]
【作用】従来のように現場での寸法取りやフランジ部の
大きさに合わせた切り取り作業などが不要であり、防食
シートの一辺はフランジ部の外周の長さより短くても施
工でき、防食シートの製品幅に関係なく施工できる。[Function] Unlike the conventional method, there is no need for on-site dimensioning or cutting work according to the size of the flange, and it can be installed even if one side of the anticorrosion sheet is shorter than the outer circumference of the flange. Can be installed regardless of product width.
【００１２】[0012]
【実施例】次に、本発明フランジ部の防食施工方法の実
施例を図面を参照して説明する。図１乃至図２は本発明
フランジ部の防食施工方法の実施例を示す断面図であ
り、図１において、鋼管５、５を接続するための２個の
フランジ部３、４がボルト６、６とナット６１、６１に
より接合され、ボルト６、６とナット６１、６１により
形成される凹部にはマスチック剤６３が充填されて表面
が平滑となされている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flange portion anticorrosion construction method according to the present invention will now be described with reference to the drawings. 1 and 2 are cross-sectional views showing an embodiment of a method for performing anticorrosion protection of a flange portion of the present invention. In FIG. 1, two flange portions 3 and 4 for connecting steel pipes 5 and 5 are bolts 6 and 6, respectively. And the nuts 61 and 61 are joined together, and the concave portion formed by the bolts 6 and 6 and the nuts 61 and 61 is filled with a mastic agent 63 to make the surface smooth.
【００１３】フランジ部３、４の外周面３１、４１にペ
トロラタムを積層してなる防食シート１の一端縁を巻き
付け、筒状となされた該防食シート１を、図２に示すよ
うに一方のフランジ部３の外周端縁で折り曲げ、フラン
ジ部３のマスチック６３面に貼り付け、該防食シート１
の他端部を鋼管５に巻き付ける。フランジ部３の側面に
生じた防食シート１のひだは、ペトロラタム防食剤面同
士で接着してフランジ部３側面へ倒しておく（図示
略）。As shown in FIG. 2, one end of a corrosion-preventing sheet 1 formed by laminating petrolatum on the outer peripheral surfaces 31 and 41 of the flanges 3 and 4 is wound to form one tubular flange. The outer peripheral edge of the portion 3 is bent and attached to the mastic 63 surface of the flange portion 3, and the anticorrosion sheet 1
The other end of is wound around the steel pipe 5. The folds of the anticorrosion sheet 1 formed on the side surfaces of the flange portion 3 are adhered to each other by the petrolatum anticorrosive agent surfaces and then laid down on the side surfaces of the flange portion 3 (not shown).
【００１４】図２に示すように、上記防食シート１とほ
ゞ同じ大きさの防食シート２をもう１枚準備し、これを
上記と同様にして他方のフランジ部４を被覆する。上記
のようにしてフランジ部３、４及び鋼管５の一部を被覆
した防食シート１、２の上から粘着テープ（図示略）を
巻き付け、フランジ部３、４の両側面に形成された防食
シート１、２のひだの上からも保護用の粘着テープを巻
き付ければ施工は終了する。As shown in FIG. 2, another anticorrosion sheet 2 having substantially the same size as the anticorrosion sheet 1 is prepared, and the other flange portion 4 is coated in the same manner as above. An anticorrosion sheet formed on both side surfaces of the flange portions 3 and 4 by winding an adhesive tape (not shown) on the anticorrosion sheets 1 and 2 that cover the flange portions 3 and 4 and part of the steel pipe 5 as described above. The construction is completed by wrapping the protective adhesive tape over the folds 1 and 2.
【００１５】[0015]
【発明の効果】本発明のフランジ部の防食施工方法は以
上の構成であり、現場での寸法取りや切り取り作業が不
要である。各種サイズのフランジ部に対応して防食シー
トの製品幅に関係なく施工でき、寸法表がなくても能率
的に施工することができる。EFFECTS OF THE INVENTION The flange portion anticorrosion construction method of the present invention has the above-mentioned configuration, and does not require on-site dimensioning and cutting work. Corresponding to flanges of various sizes, it can be installed regardless of the product width of the anticorrosion sheet, and can be installed efficiently even without a dimension table.
【００１６】[0016]
【図１】本発明フランジ部の防食施工方法の実施例を示
す断面図。FIG. 1 is a cross-sectional view showing an embodiment of a method for performing anticorrosion construction on a flange portion of the present invention.
【図２】本発明フランジ部の防食施工方法の実施例を示
す断面図。FIG. 2 is a cross-sectional view showing an embodiment of a method for performing anticorrosion protection on a flange portion of the present invention.
【図３】従来の防食シートを示す平面図。FIG. 3 is a plan view showing a conventional anticorrosion sheet.
１，２：防食シート ３，４：フランジ部 ５ ：鋼管 ３１，４１：外周面 1, 2: Anticorrosion sheet 3, 4: Flange part 5: Steel pipe 31, 41: Outer peripheral surface
Claims (1)
防食被覆するにあたり、フランジ部の外周面に防食シー
トを巻き付け、該防食シートをフランジ部の外周端縁に
沿って折り曲げてフランジ部側面に貼り付け、次いで接
続される鋼管の外面にかけて巻き付けることを特徴とす
るフランジ部の防食施工方法。1. An anticorrosive sheet is used for anticorrosion coating of a flange portion of a pipe, a corrosive sheet is wrapped around an outer peripheral surface of the flange portion, and the anticorrosive sheet is bent along an outer peripheral edge of the flange portion to a side surface of the flange portion. A method for anticorrosion construction of a flange, which comprises pasting and then winding the steel pipe over the outer surface of the pipe to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6153424A JPH0821591A (en) | 1994-07-05 | 1994-07-05 | Anticorrossion for flange part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6153424A JPH0821591A (en) | 1994-07-05 | 1994-07-05 | Anticorrossion for flange part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0821591A true JPH0821591A (en) | 1996-01-23 |
Family
ID=15562212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6153424A Pending JPH0821591A (en) | 1994-07-05 | 1994-07-05 | Anticorrossion for flange part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0821591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017094868A1 (en) * | 2015-12-04 | 2017-06-08 | 日東電工株式会社 | Anti-corrosion paste, anti-corrosion structure and method for producing anti-corrosion structure |
-
1994
- 1994-07-05 JP JP6153424A patent/JPH0821591A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017094868A1 (en) * | 2015-12-04 | 2017-06-08 | 日東電工株式会社 | Anti-corrosion paste, anti-corrosion structure and method for producing anti-corrosion structure |
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