JPH0333096B2 - - Google Patents

Info

Publication number
JPH0333096B2
JPH0333096B2 JP60127556A JP12755685A JPH0333096B2 JP H0333096 B2 JPH0333096 B2 JP H0333096B2 JP 60127556 A JP60127556 A JP 60127556A JP 12755685 A JP12755685 A JP 12755685A JP H0333096 B2 JPH0333096 B2 JP H0333096B2
Authority
JP
Japan
Prior art keywords
frp
layer
outside
tube
coupler
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
JP60127556A
Other languages
English (en)
Other versions
JPS61284422A (ja
Inventor
Keigo Egashira
Kaoru Higashikubo
Hideho Nishimura
Moryuki Sonda
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.)
KYUSHU SEKISUI KOGYO
Original Assignee
KYUSHU SEKISUI KOGYO
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 KYUSHU SEKISUI KOGYO filed Critical KYUSHU SEKISUI KOGYO
Priority to JP60127556A priority Critical patent/JPS61284422A/ja
Publication of JPS61284422A publication Critical patent/JPS61284422A/ja
Publication of JPH0333096B2 publication Critical patent/JPH0333096B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は、酸・アルカリ溶液を輸送するプラン
ト配管分野や高温水を輸送する温泉分野若しくは
火力発電分野等のFRP管による配管分野におい
て利用されるFRP管接続部の補強方法に関する。
（従来技術） 従来、FRP管相互を継手を介して接続する場
合、第３図に示すように、FRP継手ａにFRP管
ｂ，ｂを差し込み接続した後、直接又は継手ａの
径と管ｂの径の間に段差が大きい場合には、２液
反応硬化型のパテを段差部ｃに塗り、段差部ｃを
パテで埋めた後、接続部の強度アツプと管ｂが接
続部から抜けないようにするため接続部の外側に
ガラス繊維を捲き回し、しかるのちあらかじめ触
媒を添加し混合撹拌した熱硬化性樹脂を塗布、含
浸させてFRPハンドレアツプ層ｄを設けこれを
硬化させて接続部を補強している。
（従来技術の問題点） しかしながら、上記のようなFRP管の接続法
においては、以下に列記するような種々の欠点が
内在する。
(1) 接続部の外側にガラス繊維を捲き回し、その
上から熱硬化性樹脂を塗布し硬化させて補強す
るものであるから、作素性が悪い。
(2) FRP管とFRP継手の径の間に段差が大きい
場合には、段差をなくすためにパテを塗るが、
パテが２液反応硬化型であるので、主剤と硬化
剤を混合する作業に時間がかかる上に、外気圧
によつて、主剤と硬化剤の混合比率を変化させ
ないと硬化する時間を一定に保つことができな
い。
（問題点を解決するための手段） 本発明は、かかる従来技術の問題点を解決する
ためになされたもので、その目的とするところ
は、FRP管と継手との接続部の補強作業を簡素
化し、かつ補強効果を十分に発揮できるFRP管
接続部の補強方法を提供することにあり、この目
的達成のための技術的手段として本発明では、
FRP継手を介してFRP管を接続したのち、FRP
管のFRP層とFRP継手のFRP層とをサンドペー
パにて研磨し、更に溶剤にて拭き上げた後、
FRP管とFRP継手の接続部に直接、又は接続部
に段差がある場合は段差部に感光性パテを塗つた
後その上から、感光性シートを捲き回し、光でも
つて硬化させてFRP管とFRP継手の接続部を外
側より補強する方法を採用した。
尚、本発明で使用する感光性シートとは、光で
硬化するもので、熱硬化性樹脂例えば不飽和エポ
キシエステル樹脂あるいは不飽和ポリエステル樹
脂100部に対して0.001部以上の光増感剤を添加
し、更に増粘剤を添加して化学的に増粘した熱硬
化性樹脂（不飽和エポキシエステル樹脂、不飽和
ポリエステル樹脂）をベースとする樹脂混合物を
マツト状のガラス繊維に含浸・脱泡させ、同時に
シートの両面をポリエチレンフイルム等で被覆し
巻き取つたもので、使用に際しては、適当な巾に
裁断して使用するものである。又、感光性パテと
は、光で硬化するもので、熱硬化性樹脂例えば不
飽和エポキシエステル樹脂あるいは不飽和ポリエ
ステル樹脂100部に対して0.001部以上の光増感剤
を配合し、更に増粘剤を添加して化学的増粘作用
によりパテ状にしたものである。尚、耐薬品性を
要求される場合には、これに更にガラスフレーク
を添加したものが使用される。
（作用） 従つて、本発明の補強方法を適用してFRP管
とFRP継手との接続部を補強するときは、まず、
FRP継手を介してFRP管を接続をしたのち、
FRP管のFRP層とFRP継手のFRP層とをサンド
ペーパにて研磨し、更に溶剤にて拭き上げた後、
FRP管とFRP継手の接続部に直接、又は接続部
に段差がある場合は段差部に感光性パテを塗つた
後その上から、感光性シートを捲き回し、光でも
つて硬化させ、FRP管とFRP継手の接続部を外
側より補強するものである。
本発明では、感光性シートおよび感光性パテを
使用しているので、従来のように、主剤と硬化剤
を混合したり、あるいは外気温によつて主剤と硬
化剤の混合比率を変化させる等の作業が必要でな
く、又、パテの上および複雑な配管の部分にでも
このシートを押え込むだけで施工することができ
る。又、感光性シートは半ゲル化状となつている
ので、液状の熱硬化性樹脂の作業と違つて、乾式
（ドライ）な環境の中で作業ができ、樹脂の飛散、
垂れが全くなく高所の配管部補強作業の場合にお
いても全く衛生的な作業環境で安全な作業ができ
る。
（実施例） 以下、本発明のFRP管接続部の補強方法の実
施例について説明する。
実施例 １ 直径25mmの塩化ビニル管を芯材１とし、この芯
材１の外側に0.6mm厚さのFRP層２を設け、この
FRP層２の外側に0.8mm厚さの塩化ビニル樹脂に
よる被覆層３を設けてFRP管Ａを構成する。そ
して、このFRP管Ａの管端の被覆層３を略80mm、
FRP層２を40mmほど電気カンナでもつてけずり
とる。一方、口径25mmの塩化ビニル製ソケツト４
の外側に２mm厚さのFRP層５を設けたFRP継手
Ｂを構成する。
次に上記FRP管Ａの管端の芯材１の外側及び
FRP継手Ｂの内側挿入口面へ塩化ビニル用接着
剤を塗布しFRP継手ＢにFRP管Ａを挿入させて
両者を接続する。接続後の状態を示したのが第１
図であり、このFRP管ＡとFRP継手Ｂとの接続
部Ｃを更に外側より補強する。この補強方法が本
発明の要部であり、まず、第１図のFRP継手Ｂ
の外側FRP層５を端面より略20mmほどサンドペ
ーパでもつてよくこする。同時にFRP管Ａの
FRP層２の外側もサンドペーパでよくこすり、
両面をアセトンでもつて拭き、ほこりや油成分を
除去する。
次に巾50mmに裁断した感光性シートＤ（仮想線
で示す）をFRP管ＡとFRP継手Ｂの接続部Ｃの
外側に２回ほど巻きつけ、管Ａの外側面と継手Ｂ
の外側面に密着するように押し付け、太陽光線下
で15分間放置して感光性シートＤを硬化させ補強
を終える。
この時の感光性シート層の厚みは、0.8mmであ
つた。
実施例 ２ 直径75mmの塩化ビニル管を芯材１とし、この芯
材１の外側に1.2mm厚さのFRP層２を設け、この
FRP層２の外側に0.8mm厚さの塩化ビニル樹脂に
よる被覆層３を設けてFRP管Ａを構成する。こ
のFRP管Ａの管端の被覆層３を略160mm、FRP層
２を80mmほど電気カンナでもつてけずりとる。一
方、口径75mm塩化ビニル製ソケツト４の外側に４
mm厚さのFRP層５を設けてFRP継手Ｂを構成す
る。
次に上記FRP管Ａの管端の芯材１の外側及び
FRP継手Ｂの内側挿入口面へ塩化ビニル用接着
剤を塗布しFRP継手ＢへFRP管Ａを挿入させて
両者を接続する。接続後の状態を示したのが第２
図であり、このFRP管ＡとFRP継手Ｂとの接続
部Ｃを更に外側より補強する。この補強方法が本
発明の要部であり、まず、第２図のFRP継手Ｂ
の外側FRP層５を端面より略60mmほどサンドペ
ーパでよくこする。同時にFRP管ＡのFRP層２
の外側もサンドペーパでよくこすり、両面をアセ
トンでもつて拭き、ほこりや油成分を除去すると
共に表面にミクロな凹凸を生起させる。
次にFRP管ＡとFRP継手Ｂとの段差部６に感
光性パテ７を塗り段差をなくした後、仮想線にて
示したように巾100mmに裁断した感光性シートＤ
を段差部６のパテ７上に巻き付けて密着させ紫外
線ランプで25分間ほど加熱照射して硬化させ、こ
の感光性シートＤ上に更に塗料を塗布して接着部
Ｃの補強を終了する。この時、感光性シート層の
厚みは、1.1mmであつた。
（効果） 以上、説明したように本発明方法によれば、
FRP継手とFRP管との熱可塑性樹脂層相互間を
通常の耐熱性の接着剤でもつて接着した後、
FRP管の被覆層を剥離してFRP層を露出させ、
FRP継手のFRP層と合わせてサンドペーパにて
勢処理し、更に、溶剤にて表面を拭き上げ、接続
部に直接、又は接続部に段差がある場合は感光性
パテを塗り、その上から感光性シートを巻き付け
て、光によつて感光性シート中の熱硬化性樹脂を
硬化させてFRP管とFRP継手の接続部を補強す
るものである。
従つて、酸・アルカリ溶液を輸送するプラント
配管分野や高温水を輸送する温泉分野若しくは火
力発電分野等のFRP管による配管分野等におい
てFRP管とFRP継手の接続部をきわめて容易に
かつ確実に補強することができる。
又、感光性シートを巻き回した後、光を当てれ
ば、感光性シートが15〜30分の短時間でもつて硬
化し、FRP管と補強継手を一体的に強く連結す
ることができるので、FRP管内への通水も短時
間の内に可能となる等の実用的価値も向上でき
る。
【図面の簡単な説明】
第１図、第２図は、本発明の補強方法により補
強したFRP管とFRP継手との接続部を示す断面
図、第３図は従来工法によるFRP管とFRP継手
の接続部を示す断面図である。 Ａ：FRP管、Ｂ：FRP継手、Ｃ：接続部、
Ｄ：感光性シート、１：芯材、２：FRP層、
３：被覆層、４：ソケツト、５：FRP層、６：
段差部、７：感光性パテ。

Claims (1)

    【特許請求の範囲】
  1. １ FRP継手を介してFRP管を接続したのち、
    FRP管のFRP層とFRP継手のFRP層とをサンド
    ペーパにて研磨し、更に溶剤にて拭き上げた後、
    FRP管とFRP継手の接続部に直接、又は接続部
    に段差がある場合は段差部に感光性パテを塗つた
    後その上から、感光性シートを捲き回し、光でも
    つて硬化させてFRP管とFRP継手の接続部を外
    側より補強することを特徴とするFRP管接続部
    の補強方法。
JP60127556A 1985-06-11 1985-06-11 Ｆｒｐ管接続部の補強方法 Granted JPS61284422A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60127556A JPS61284422A (ja) 1985-06-11 1985-06-11 Ｆｒｐ管接続部の補強方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60127556A JPS61284422A (ja) 1985-06-11 1985-06-11 Ｆｒｐ管接続部の補強方法

Publications (2)

Publication Number Publication Date
JPS61284422A JPS61284422A (ja) 1986-12-15
JPH0333096B2 true JPH0333096B2 (ja) 1991-05-15

Family

ID=14962935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60127556A Granted JPS61284422A (ja) 1985-06-11 1985-06-11 Ｆｒｐ管接続部の補強方法

Country Status (1)

Country Link
JP (1) JPS61284422A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014142059A (ja) * 2012-12-26 2014-08-07 F Tatsukuru:Kk 船舶におけるｆｒｐ配管接続工法

Also Published As

Publication number Publication date
JPS61284422A (ja) 1986-12-15

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