JPS6174830A - Manufacture of molded material - Google Patents

Manufacture of molded material

Info

Publication number
JPS6174830A
JPS6174830A JP59196857A JP19685784A JPS6174830A JP S6174830 A JPS6174830 A JP S6174830A JP 59196857 A JP59196857 A JP 59196857A JP 19685784 A JP19685784 A JP 19685784A JP S6174830 A JPS6174830 A JP S6174830A
Authority
JP
Japan
Prior art keywords
inner layer
layer member
fiber
molded article
reinforced plastic
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
Application number
JP59196857A
Other languages
Japanese (ja)
Other versions
JPH0226852B2 (en
Inventor
Hiroe Ishii
石井　宏衛
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.)
Akatake Engineering Co Ltd
Original Assignee
Akatake Engineering Co 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 Akatake Engineering Co Ltd filed Critical Akatake Engineering Co Ltd
Priority to JP59196857A priority Critical patent/JPS6174830A/en
Publication of JPS6174830A publication Critical patent/JPS6174830A/en
Publication of JPH0226852B2 publication Critical patent/JPH0226852B2/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B29D23/003—Pipe joints, e.g. straight joints
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/50—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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • 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)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To mold comparatively easily a joined-molded material in a desired form, by a method wherein a PTFE disklike material is welded to an end of a PTFE tubular material, a coating layer is formed on the outside of the disklike material by applying FRP to the outside of the same, then a FRP flange material is joined to the outside of the disklike material through the above coating layer, and then the FRP is applied to the outside of the tubular material and the flange material. CONSTITUTION:To mold a tubular joined-molded material, a disklike material 8 made of PPTFE is welded to one end of a tubular material 6 made of PTFF, to being with. Then a coating layer 14 is formed by applying FRP to the outside of the welded disklike material 8, and then a flange material 16 made of the FRP is joined with the outside of the disklike material 8 by pressing the flange material 16 against the coating layer 14. Then a coating layer 24 is formed by applying the FRP to the outside of the tubular material 6 and flange material 16. The coating layer 24 is formed by making the FRP coat by tiering the same several times.

Description

【発明の詳細な説明】 く技術分野〉 本発明は、内層がポリテトラフルオロエチレンから成り
、外層が繊維強化プラスチックから成る成形体の製造方
法に関る、。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method for manufacturing a molded article whose inner layer is made of polytetrafluoroethylene and whose outer layer is made of fiber-reinforced plastic.

く従来技術〉 近年、化学プラント等においては、各種構成要素は耐蝕
性、耐薬品性、耐久性等が要求されている。そこで、こ
れらの要求を満足る、材料としてポリテトラフルオロエ
チレンが注目され、内層がポリテトラフルオロエチレン
から成り、外層が繊維強化プラスチックから成る成形体
が提案され実用に供されている。BACKGROUND ART In recent years, in chemical plants and the like, various components are required to have corrosion resistance, chemical resistance, durability, etc. Therefore, polytetrafluoroethylene has attracted attention as a material that satisfies these requirements, and a molded article in which the inner layer is made of polytetrafluoroethylene and the outer layer is made of fiber-reinforced plastic has been proposed and put into practical use.

しかし、従来の上述した成形体においては、繊維強化プ
ラスチックを被覆る、ことによる熱によってポリテトラ
フルオロエチレンの層が変形し、このことに起因して所
望の形状の成形体を得ることが困難である等の問題があ
った。However, in the above-mentioned conventional molded product, the polytetrafluoroethylene layer that covers the fiber-reinforced plastic is deformed due to heat, and this makes it difficult to obtain a molded product with the desired shape. There were some problems.

〈発明の目的〉 本発明は上記事実に鑑みてなされたものであシその主目
的は、所望形状の接合成形体を比較的容易に成形る、こ
とができる、改良された成形体の製造方法を提供る、こ
とである、 本発明の他の目的は、以下の記載から明らかになるであ
ろう。<Object of the Invention> The present invention has been made in view of the above-mentioned facts, and its main purpose is to provide an improved method for manufacturing a molded body, which allows a bonded molded body of a desired shape to be formed relatively easily. Other objects of the invention will become clear from the description below.

〈発明の要約〉 本発明の第１の局面によれば、内層がポリテトラフルオ
ロエチレンから成り、外層が繊維強化プラスチックから
成るフランジ部を有る、管状接合成形体を製造る、方法
において、 ポリテトラフルオロエチレンから成る管状体の一端にポ
リテトラフルオロエチレンから成る円板状体を溶接し、 次Ｋ、該円板状体の外面に繊維強化プラスチックを施し
て被覆層を形成し、 次いで、繊維強化プラスチックから成るフランジ体を該
被覆層を介して該円板状体の外面に加圧接合し、 しかる後、該管状体及び該フランジ体の外面に繊維強化
プラスチックを被覆る、、 ことを特徴とる、成形体の製造方法が提供される。<Summary of the Invention> According to a first aspect of the present invention, a method for manufacturing a tubular joined molded article having a flange portion in which the inner layer is made of polytetrafluoroethylene and the outer layer is made of fiber-reinforced plastic, comprising: A disk-shaped body made of polytetrafluoroethylene is welded to one end of a tubular body made of fluoroethylene, and next, a fiber-reinforced plastic is applied to the outer surface of the disk-shaped body to form a coating layer, and then a fiber-reinforced plastic is applied to the outer surface of the disk-shaped body. A flange body made of plastic is pressure-bonded to the outer surface of the disk-shaped body via the coating layer, and then the outer surfaces of the tubular body and the flange body are coated with fiber-reinforced plastic. , a method for manufacturing a molded body is provided.

また、本発明の第２の局面によれば、内層がポリテトラ
フルオロエチレンから成り、外層が繊維強化プラスチッ
クから成る、接合成形体を製造る、方法において、 ポリテトラフルオロエチ】／ンがら成る第１の内層部材
の一端側とポリテトラフルオロエチレンから成る第２の
内層部材の他端側の片面側に繊維強化プラスチックを施
して仮付は層を形成し、これＫよって該仮付は層を介し
て仮付けし、次に、該第１の内層部材の該一端側と該第
２の内層部材の該他端側の他面側を溶接し、次いで、該
仮付は層を除去して該第１の内層部材の該一端側と該第
２の内層部材の該他端側の該片面側を溶接る、、 ことを特徴とる、成形体の製造方法が提供される。According to a second aspect of the present invention, there is provided a method for producing a bonded molded article in which the inner layer is made of polytetrafluoroethylene and the outer layer is made of fiber-reinforced plastic. Fiber-reinforced plastic is applied to one end of the first inner layer member and the other end of the second inner layer member made of polytetrafluoroethylene to form a tack layer. Then, the one end side of the first inner layer member and the other side of the other end side of the second inner layer member are welded, and then the tack is performed by removing the layer. There is provided a method for manufacturing a molded body, characterized in that the one end side of the first inner layer member and the one side of the other end side of the second inner layer member are welded.

更に、本発明の第３の局面によれば、内層がポリテトラ
フルオロエチレンから成り、外層が繊維強化プラスチッ
クから成る、折曲げ部を有る、成形体を製造る、方法に
おいて、 ポリテトラフルオロエチレンから成る板状体の片面に繊
維強化プラスチツクを被覆してその表面に被覆層を形成
し、 次に、該被覆層の一部を除去して折曲げ部となる部分を
形成し、 次いで、該板状体の他面が内側となるように該板状体を
折曲せしめ、 しかる後、該板状体の該折曲げ部の外面に繊維強化プラ
スチックを被覆る、、 ことを特徴とる、成形体の製造方法が提供される。Furthermore, according to a third aspect of the present invention, there is provided a method for producing a molded article having a bent portion, the inner layer of which is made of polytetrafluoroethylene, and the outer layer of which is made of fiber-reinforced plastic. A fiber-reinforced plastic is coated on one side of the plate-shaped body to form a coating layer on the surface, and then a part of the coating layer is removed to form a bent part. A molded article characterized in that the plate-shaped body is bent so that the other surface of the plate-shaped body is on the inside, and then the outer surface of the bent part of the plate-shaped body is covered with fiber-reinforced plastic. A manufacturing method is provided.

〈発明の好適具体例〉 以下、添付１面を参照して更に説明る、。<Preferred specific examples of the invention> Further explanation will be given below with reference to the attached page 1.

本発明に従う第１の製造方法は、例えば第１図に示す接
合成形体を製造る、のに適用される。The first manufacturing method according to the present invention is applied, for example, to manufacturing the bonded molded body shown in FIG.

まず、第１図を参照して図示の接合成形体の構成につい
て説明る、と、図示の管状接合成形体は管状主部２と管
状主部２の一端に設けられたフランジ部４を有している
。管状主部２は、内側にポリテトラフルオａエチｖ　ｙ
　（ＰＴＦＥ：ｐｏ　１ｙｔｅ　ｔｒａ−ｆｌｕｏｒｏ
ｅｔｂｙｌｅｎｓ）から成る内層を有し、外側にガラス
繊維強化プラスチックの如き繊維強化プラスチック（Ｆ
ＲＰ：ｆｉｂｅｒ　ｒｓｉｎｆｏｒｃｅｄ　ｐｌａｇｔ
ｌｃ）から成る外層を有している。また、フランジ部４
は、内側（第１囚において下側）にＰＴＦＥから成る内
層を有し、外側（第１図において上側）にＦＲＰから成
る外層を有している。かくの通りであるので、管状接合
成形体の内面はＰＴＦＥで被われ、その外面はＦＲＰで
被われている。First, the structure of the illustrated joined molded body will be explained with reference to FIG. 1. The illustrated tubular joined molded body has a tubular main portion 2 and a flange portion 4 provided at one end of the tubular main portion 2. ing. The tubular main part 2 is made of polytetrafluoroethylene on the inside.
(PTFE:po 1yte tra-fluoro
The inner layer is made of fiber-reinforced plastic such as glass fiber-reinforced plastic.
RP: fiber rsinforced plug
lc). In addition, the flange portion 4
has an inner layer made of PTFE on the inside (lower side in the first case) and an outer layer made of FRP on the outside (upper side in FIG. 1). As described above, the inner surface of the tubular bonded molded body is covered with PTFE, and the outer surface is covered with FRP.

上述した接合成形体は、例えば化学プラントの構成要素
として利用され、各種槽の排出口等に接続される。かか
る接合成形体は、内面がＰＴＦＥで被われている故に、
内部を通る薬品の如き液体に対して不活性で耐薬品性に
優れ、また外面がＦＲＰで被われて母体を構成る、故に
、耐蝕性、耐久性等に優れている。The bonded molded body described above is used, for example, as a component of a chemical plant, and is connected to the discharge ports of various tanks. Since the inner surface of such a bonded molded body is covered with PTFE,
It is inert to liquids such as chemicals passing through the interior and has excellent chemical resistance.The outer surface is covered with FRP to form the base body, so it has excellent corrosion resistance and durability.

第１図に示す管状接合成形体は、次の通シにして成形さ
れる。The tubular joined molded body shown in FIG. 1 is molded in the following manner.

第１図と共に第２−Ａ図及び第２−Ｂ図を参照して説明
る、と、管状接合成形体を成形る、には、まず、ＰＴＦ
Ｅから成る管状体６の一端にＰＴＦＥから成る円板状体
８を浴接る、。円板状体８の中央部には、管状体６の外
径と実質上等しい内径を有る、孔が形成されておシ、従
って、溶接る、際には、第２−Ａ図に示す如く、円板状
体８の孔内に管状体６の一端部を挿入し、円板状体８の
内面（第２−Ａ図において下側に位置る、面）と管状体
６の一端面が実質上平坦となるようにる、。そして、管
状体６の一端外笥緑及び円板状体８の内面内周縁の接合
部と、管状体６の一端部外周縁及び円板状体８の外面（
第２−Ａ図において上側に位置る、面）内周縁の接合部
にバーフルオロアルコキシフルオロカーボン（ＰＦＡ；
ｐｓｒｆｌｕｏｒｏａｌｃｏｘｙ−ｆｌｕｏｒｏｃａｒ
ｂｏｎ）　ｆ、５ｉ状に施す。かくる、と、上記接合部
にＰＦＡから成る環状の中介層１０ａ及び１０ｂが生成
され、かかる中介層１０＆及び１０ｂ２介して両者が溶
接される。上述した溶接は、内面側において、管状体６
の一端外ＺＲに外方に向って外側に何科る、傾斜面を設
けると共に円板状体８の内面内周縁に内方に向って外側
に傾斜る、傾斜面を設け、これら傾斜面によって接合部
に凹所を規定る、ようにし、かかる凹所にＰＦＡを施し
て中介層１０ａを介在させるようにる、のが好ましい。As will be explained with reference to FIG. 1 as well as FIGS. 2-A and 2-B, in order to mold a tubular joined molded body,
A disk-shaped body 8 made of PTFE is attached to one end of a tubular body 6 made of E. A hole having an inner diameter substantially equal to the outer diameter of the tubular body 6 is formed in the center of the disc-shaped body 8, so that when welding is performed, as shown in FIG. 2-A, a hole is formed. , one end of the tubular body 6 is inserted into the hole of the disc-shaped body 8, and the inner surface of the disc-shaped body 8 (the surface located on the lower side in FIG. 2-A) and the one end surface of the tubular body 6 are aligned. so that it is essentially flat. Then, the joint part between the outer edge of one end of the tubular body 6 and the inner circumferential edge of the inner surface of the disk-shaped body 8, and the outer circumferential edge of one end of the tubular body 6 and the outer surface of the disk-shaped body 8 (
Barfluoroalkoxyfluorocarbon (PFA;
psrfluoroalkoxy-fluorocar
bon) Apply in the form of f, 5i. As a result, annular intermediate layers 10a and 10b made of PFA are formed at the joint, and the two are welded via the intermediate layers 10& and 10b2. The above-mentioned welding is performed on the inner surface of the tubular body 6.
An inclined surface is provided on one end of the outer ZR, and an inclined surface is provided on the inner circumferential edge of the inner surface of the disk-shaped body 8, and these inclined surfaces It is preferable to define a recess in the joint, apply PFA to the recess, and interpose the intermediate layer 10a.

かく溶接された管状体８は、第１囚から容易に理解され
る如く、接合成形体の管状主部２における内層を構成し
、また円板状体８は接合成形体のフランジ部４における
内層を構成る、。The welded tubular body 8 constitutes the inner layer of the tubular main portion 2 of the joined molded body, and the disc-shaped body 8 constitutes the inner layer of the flange portion 4 of the joined molded body, as is easily understood from the first prisoner. Consists of.

次に、環状に存在る、中介層１０ｂの外面全導電性材料
で被覆して導電性層１２を形成る、。被覆る、材料とし
ては、アルミ陥、カーボンヲ含有る、繊維強化プラスチ
ック等が好適である。そして、中介層１０息及び１０ｂ
間で、それ自体公知の通電試験装置（図示せず）を用い
て通電検査を行う。かかる通電検査は、管状体６と円板
状体８が十分良好に接合しているか否かを調べるために
行なわれ、液漏れ等のおそれがある、言換えるとピンホ
ールが存在る、ときには通電状態となる。Next, the entire outer surface of the annular intermediate layer 10b is covered with a conductive material to form the conductive layer 12. Suitable materials for the coating include aluminum, carbon-containing, fiber-reinforced plastic, and the like. And the intermediate layer 10 and 10b
In between, an energization test is performed using a per se known energization testing device (not shown). This energization test is performed to check whether the tubular body 6 and the disk-shaped body 8 are bonded sufficiently well, and there is a risk of liquid leakage, in other words, there is a pinhole, and sometimes there is a possibility of energization. state.

尚、通電検査を行なわないときには、導を性層１２を設
ける必要はない。Incidentally, when a current test is not performed, it is not necessary to provide the conductive layer 12.

次いで、第２−Ｂ図に示す如く、溶接した円板状体８の
外面にＦＲＰを施して被積層１４を形成し、その後、Ｆ
ＲＰから成るフランジ体１６を上記被覆層１４に押付け
て円板状体８の外面に接合る、。Next, as shown in FIG. 2-B, FRP is applied to the outer surface of the welded disc-shaped body 8 to form a laminated layer 14, and then
A flange body 16 made of RP is pressed against the coating layer 14 and joined to the outer surface of the disc-shaped body 8.

フランジ体１６は円板状であり、その中央部に管状体６
の外径よシ若干大きい内径を有る、孔が形成されている
。かかるフランジ体１６を接合る、には、ＦＲＰが熱硬
化性である故に、円板状体８の外面に軟化状態のＦＲＰ
　（軟化状態の不飽和ポリエステルの如き樹脂にガラス
繊維の如き繊維が積層されている）を被覆し、フランジ
体１６の孔内に管状体６を位置付け、このフランジ体１
６１＆：矢印１８（第２−Ｂ図）で示す方向に上記被覆
層１４に所要圧力で押付けて加熱る、。かくる、と、被
覆層１４ｆ、構成る、ＦＲＰが熱硬化し、フランジ体１
６は円板状体８の外面に接合される。かかる接合時にお
いては、比較的剛性の小さい円板状体８が熱の影響を受
けて変形し、フランジ部４の内面が湾曲る、おそれがあ
る。そこで、この不都合を解消る、ために、第２−Ｂ図
に示す如く、円板状体８の内面を実質上平坦な表面を有
る、金具２０の表面に接触させ、フランジ体１６を押圧
工具２２によって矢印１８で示す方向に金具２０に向け
て押圧せしめるようＫる、のが好ましい。かくる、と、
加熱時に発生る、円板状体８の変形が金具２０及び押圧
工具２２の作用によって矯正され、円板状体８の内面が
実質上平坦に保たれる。尚、かかる加圧接合時には、被
覆層１４を構成る、ＦＲＰの一部が管状体６とフランジ
体１６の間の空間内に流入るために、かかるＦＲＰＯ層
を介して管状体６とフランジ体１６が接合される。The flange body 16 has a disk shape, and a tubular body 6 is provided in the center of the flange body 16.
A hole is formed with an inner diameter slightly larger than the outer diameter of the hole. To join such a flange body 16, since FRP is thermosetting, a softened FRP is attached to the outer surface of the disc-shaped body 8.
(fibers such as glass fibers are laminated to a resin such as unsaturated polyester in a softened state), the tubular body 6 is positioned within the hole of the flange body 16, and the flange body 1
61 &: Press the coating layer 14 with a required pressure in the direction shown by the arrow 18 (Fig. 2-B) and heat it. Then, the FRP constituting the coating layer 14f is thermally hardened, and the flange body 1
6 is joined to the outer surface of the disc-shaped body 8. During such joining, there is a possibility that the disk-shaped body 8, which has relatively low rigidity, may be deformed under the influence of heat, and the inner surface of the flange portion 4 may be curved. Therefore, in order to eliminate this inconvenience, as shown in FIG. 22 is preferably pressed toward the metal fitting 20 in the direction shown by the arrow 18. Hidden,
The deformation of the disk-shaped body 8 that occurs during heating is corrected by the action of the metal fittings 20 and the pressing tool 22, and the inner surface of the disk-shaped body 8 is kept substantially flat. Note that during such pressurized bonding, a portion of the FRP constituting the coating layer 14 flows into the space between the tubular body 6 and the flange body 16, so that the tubular body 6 and the flange body are bonded together through the FRPO layer. 16 are joined.

上述した円板状体８とフランジ体１６の接合を一層強固
にる、ために、円板状体８の外面に予めサンドブラスト
加工ｆ、施してその表面に凹凸を生成せしめるか、或い
は、その外面に予め二ッテンダ処理を施して金属ナトリ
ウムの被覆層を形成せしめるのが好ましい。In order to further strengthen the bond between the disc-shaped body 8 and the flange body 16, the outer surface of the disc-shaped body 8 is sandblasted in advance to create irregularities on the surface, or the outer surface is It is preferable to perform a two-tender treatment in advance to form a coating layer of metallic sodium.

しかる抜に、第１図に示す如く、管状体６及びフランジ
体１６の外面にＦＲＰ　’ｉ　！して被覆層２４２チ を形成る、。かかる被覆ｉ話、Ｆ　ＲＰ　ｋ数回重ねて
被覆させることによって形成される。However, as shown in FIG. 1, FRP'i! is applied to the outer surfaces of the tubular body 6 and the flange body 16. to form a covering layer 242. Such a coating is formed by overlapping the F RP k several times.

上述した如くして成形された管状接合成形体は、第１図
に示す如＜、ＰＴＦＥから成る内層とＦＲＰから成る外
層を有し、上述した所要通）の効果を奏る、０ また、本発明に従う第２の製造方法は、例えば第３図に
示す接合成形体を製造る、のに適用されるり 第３図を参照して図示の接合成形体の構成について説明
る、と、図示の接合成形体はプレート状であシ、その片
側にＰＴＦＥから成る層を有し、その他側にＦＲＰから
成る層を有している。かかる接合成形体はＰＴＦＥの層
が内側となるように使用され、かくしてＰＴＦＥの層が
内層を構成し、ＦＲＰＯ層が外層を構成る、。The tubular bonded molded article formed as described above has an inner layer made of PTFE and an outer layer made of FRP as shown in FIG. 1, and has the above-mentioned effects. The second manufacturing method according to the invention is applied to, for example, manufacturing the bonded molded product shown in FIG. 3.The structure of the bonded molded product shown in FIG. The composite shape is plate-shaped and has a layer of PTFE on one side and a layer of FRP on the other side. Such a bonded molded body is used with a layer of PTFE on the inside, thus the layer of PTFE constitutes the inner layer and the FRPO layer constitutes the outer layer.

上述した接合成形体は、例えば化学プラントの構成要素
として利用される。かかる接合成形体も、内面がＰＴＦ
Ｅで被われ、外面がＦＲＰで被われている故に、第１図
に示す接合成形体と同様の効果が達成される。The bonded molded body described above is used, for example, as a component of a chemical plant. Such a bonded molded body also has a PTF inner surface.
Since the outer surface is covered with FRP, the same effect as the bonded molded body shown in FIG. 1 can be achieved.

第３図に示す接合成形体は、次の通シにして成形される
。The bonded molded body shown in FIG. 3 is molded in the following manner.

第３図と共に第４−Ａ図乃至第４−Ｄ図を参照して説明
る、と、上記接合成形体を成形る、には、まず、ＰＴＦ
Ｅから成るプレート状の第１の内層部材３０の一端側と
ＰＴＦＥから成るプレート状の第２の内層部材３２の一
端＃Ｉｔ−仮付ける、。この仮付けは、第４−Ａ図に示
す如く、第１の内層部材３０の一端面と第２の内層部材
３２の一端面とを突き合わせ、この第１の内層部材３０
の一端側と第２の内層部材３２の一端側の片面側（第４
−Ａ図乃至第４−Ｄ図において下面側）にＦＲＰを施す
ことによって行なわれる。かくる、と、第１の内層部材
３０と第２の内層部材３２に跨ってＦＲＰから成る仮付
は層３４が形成され、両者はこの仮付は層３４を介して
仮付けされる。上述した如く仮付ける、には、ＦＲＰが
熱硬化性である故に、加熱してＦＲＰを熱硬化させる必
要がある。一方、加熱る、と、比較的剛性の小さい第１
の内層部材３０及び第２の内層部材３２の一端部が熱の
影ｑｉを受けて変形る、おそれがおる。そこで、この不
都合全解消る、ために、上記仮付けの際に、第１の内層
部材３０の一端側及び第２の内層部材３２の一端側の片
面側と他面側（第４−Ａ図乃至第４−Ｄ図において上面
側）間に所要圧力を加えて、熱による変形を矯正る、よ
うにる、のが好ましい。この矯正は、例えば所要形状の
金具と所要形状の抑圧工具を用いることによって行うこ
とができる。As will be explained with reference to FIGS. 4-A to 4-D together with FIG. 3, in order to mold the bonded molded product, first, PTF
Temporarily attach one end side of the plate-shaped first inner layer member 30 made of E and one end of the plate-shaped second inner layer member 32 made of PTFE. This temporary attachment is performed by butting one end surface of the first inner layer member 30 and one end surface of the second inner layer member 32, as shown in FIG. 4-A.
one end side of the second inner layer member 32 and one side of the one end side of the second inner layer member 32 (the fourth
This is done by applying FRP to the bottom surface (in Figures 4-A to 4-D). In this way, a tack layer 34 made of FRP is formed spanning the first inner layer member 30 and the second inner layer member 32, and both are tacked through this layer 34. To temporarily attach as described above, since FRP is thermosetting, it is necessary to heat the FRP to thermoset it. On the other hand, when heated, the first
There is a possibility that one end portion of the inner layer member 30 and the second inner layer member 32 may be deformed due to the influence of heat qi. Therefore, in order to completely eliminate this inconvenience, during the temporary attachment, one side and the other side of one end side of the first inner layer member 30 and one end side of the second inner layer member 32 (Fig. 4-A) It is preferable to correct deformation caused by heat by applying a required pressure between the upper surface side in FIG. 4-D. This correction can be performed, for example, by using a metal fitting of a desired shape and a suppression tool of a desired shape.

次に、かかる仮付は状態において、第４−Ｂ図に示す如
く、第１の内層部材３０の一端側と第２の内層部材３２
の一端側の他面側を溶接る、。かかる溶接は、第１の内
層部材３０の一端側と第２の内層部材３２の一端側の接
合部にＰＦＡ　ｉ施すことによって行われ、かくる、こ
とによシ上記接合部にＰＦＡから成る中介層３６が生成
され、この中介層３６を介して両者の他面側が溶接され
る。上記溶接は、第４−Ｂ図に示す如く、上述した仮付
けの後に、第１の内層部材３０の他面の一端縁に第２の
内層部材３２に向って片面側に傾斜る、（即ち、第４−
Ｂ図において、右方に向って下側１に傾斜る、）傾斜面
を形成る、と共に、第２の内層部材３２の他面の一端縁
に第１の内層部材３０１Ｃ向って片面側に傾斜る、（即
ち、第４−Ｂ図において、左方に向って下側に傾斜る、
）傾斜面を形成し、これら傾斜面によって上記接合部に
凹所を規定る、ようにし、かかる凹所にＰＦＡ　ｔ−ｍ
して中介層３６ｔ−介在させるようにる、のが好ましい
。Next, in this temporary attachment state, as shown in FIG. 4-B, one end side of the first inner layer member 30 and the second inner layer member 32 are attached.
Weld one end of the other side. Such welding is performed by applying PFA to the joint between one end side of the first inner layer member 30 and one end side of the second inner layer member 32, and, in particular, applying an intermediate made of PFA to the joint portion. A layer 36 is formed, and the other sides of both are welded via this intermediate layer 36. As shown in FIG. 4-B, after the above-described tacking, the welding is performed such that one end edge of the other surface of the first inner layer member 30 is inclined toward one side toward the second inner layer member 32 (i.e., , 4th-
In Figure B, a slope is formed that slopes downward 1 toward the right, and at the same time, at one end edge of the other surface of the second inner layer member 32, it slopes toward one side toward the first inner layer member 301C. (i.e., tilting downward toward the left in Figure 4-B)
) forming sloped surfaces and defining recesses in the joint by these slopes, and applying PFA t-m in such recesses.
It is preferable that the intermediate layer 36t be interposed therebetween.

次いで、仮付は層３４ｆｔ、除去る、。かかる仮付は層
３４の除去は、例えば所定の工具（図示せず）で削シ取
ることによって達成され、除去した後は、第１の内層部
材３０及び第２の内層部材３２は中介層３６を介して接
合状態に保持される。Then, the 34ft layer of basting is removed. Such tacking is accomplished by removing the layer 34, for example, by scraping it with a predetermined tool (not shown), and after removal, the first inner layer member 30 and the second inner layer member 32 are removed from the intermediate layer 36. The bonded state is maintained through the .

その後、第４−０図に示す如く、第１の内層部材３０の
一端側と第２の内層部材３２の一端側の片面側（仮付は
層３４が存在していた側）を溶接る、。かかる溶接は、
上記他面側の溶接と同様に、第１の内層部材３０の一端
側と第２の内層部材３２の接合部にＰＦＡを施すことに
よって行われ、かくる、ことによυ上記接合部にＰＦＡ
から成る中介層３８が生成され、この中介層３８ｔ−介
して両者の片面側も溶接される。上述した溶接は、第４
−Ｃ図に示す如く、仮付は層３４を除去した後に、第１
の内層部材３０の片面の一端縁に第２の内層部材３２に
向って他面側に傾斜る、（即ち、第４−Ｃ図において、
右方に向って上方に傾斜る、）傾斜面を形成る、と共に
、第２の内層部材３２の片面の一端縁に第１の内層部材
３０に向って他面側に傾斜る、（即ち、第４−ｃ図にお
いて、左方に向って上方に傾斜る、）傾斜面を形成し、
これら傾斜面によって上記接合部に凹所を規定る、よう
にし、かかる凹所にＰＦＡ’を施して中介層３８’ｉ介
在させるようにる、のが好ましい。かくの如く溶接さｔ
た第１の内層部材３０及び第２の内層部材３２は、第３
図から容易に理解される如く、接合成形体の内層を構成
る、。Thereafter, as shown in FIG. 4-0, one end of the first inner layer member 30 and one end of the second inner layer member 32 are welded (temporarily attached to the side where the layer 34 was present). . Such welding is
Similar to the welding on the other surface side, this is performed by applying PFA to the joint between one end side of the first inner layer member 30 and the second inner layer member 32.
An intermediate layer 38 is formed, and one side of the two is also welded via this intermediate layer 38t. The welding described above is the fourth
- As shown in Figure C, tacking is performed after removing the layer 34.
One end edge of one side of the inner layer member 30 is inclined toward the other side toward the second inner layer member 32 (i.e., in FIG. 4-C,
forming an inclined surface (which slopes upwardly toward the right), and slopes toward the other side toward the first inner layer member 30 at one end edge of one side of the second inner layer member 32 (i.e., In FIG. 4-c, forming an inclined plane ) which is inclined upward toward the left;
It is preferable that these inclined surfaces define a recess in the joint portion, and that PFA' is applied to the recess to interpose the intermediate layer 38'i. Welding like this
The first inner layer member 30 and the second inner layer member 32 are
As can be easily understood from the figure, it constitutes the inner layer of the bonded molded body.

次いで、第４−Ｄ図に示す如く、中介層３８の外面をア
ルミ箔、カーボンを含有る、繊維強化プラスチック等の
導電性材料で被覆して導電性層４０を形成し、中介層３
６及び３８間で通電検査を行う。この通電検査は、第１
の内層部材３０と第２の内層部材３２が十分良好に接合
しているか否かを調べるために行なわれる。尚、この場
合にも、通電検査を行なわないときには、導電性層４０
を設ける必要はない。Next, as shown in FIG. 4-D, the outer surface of the intermediate layer 38 is coated with a conductive material such as aluminum foil or fiber-reinforced plastic containing carbon to form a conductive layer 40.
Conduct a current test between 6 and 38. This energization test is the first
This is done to check whether or not the inner layer member 30 and the second inner layer member 32 are bonded sufficiently well. In this case as well, when the current test is not performed, the conductive layer 40
There is no need to provide

しかる後に、第３図に示す如く、第１の内層部材３０及
び第２の内層部材３２の片面、即ち外面にＦＲＰを施し
て被覆層４２ｔ−形成る、。この被覆層４２は、ＦＲＰ
ｉ数回重ねて被覆させることによって形成される。尚、
所望ならば、被覆層４２を形成る、際に、平滑にる、た
めに圧力を加えるようにしてもよい。かくして、第３図
に示す接合成形体が成形され、この接合成形体はＰＴＦ
Ｅから成る内層とＦＲＰから成る外層を有る、。Thereafter, as shown in FIG. 3, FRP is applied to one side, that is, the outer surface, of the first inner layer member 30 and the second inner layer member 32 to form a covering layer 42t. This coating layer 42 is made of FRP
It is formed by overlapping the coating several times. still,
If desired, pressure may be applied during formation of the covering layer 42 to smooth it. In this way, the bonded molded body shown in FIG. 3 is molded, and this bonded molded body is made of PTF.
It has an inner layer made of E and an outer layer made of FRP.

上述した方法においては、第１の内層部材３０と第２の
内層部材３２の他面側及び片面側ｔ−溶接した後に、そ
れらの片面側（外面となる側）にＦＲＰを施して被覆層
を形成しているが、所望ならば、第１の内層部材３０と
第２の内層部材３２の他面側ｔ−廖接した後にそれらの
他面に更にＦＲＰ　ｔ−施して被覆層を形成る、ように
してもよい（このときには、それらの片面側には仮付は
層３４が存在している）。尚、かかる場合には、それら
の他面が外面となシ、かかる外面に施されたＦＲＰの被
覆層が外層を構成る、。In the method described above, after T-welding the other side and one side of the first inner layer member 30 and the second inner layer member 32, FRP is applied to one side (the side that becomes the outer surface) to form a coating layer. However, if desired, after the other surfaces of the first inner layer member 30 and the second inner layer member 32 are brought into contact with each other, FRP is further applied to the other surfaces thereof to form a covering layer. (In this case, the tacking layer 34 is present on one side of them). In this case, the other surface is the outer surface, and the FRP coating layer applied to the outer surface constitutes the outer layer.

かかる製造方法は、例えば第５図に示す円筒状の接合成
形体を成形る、場合にも適用る、ことができる。第５図
に示す通電の筒状接合成形体を成形る、場合には、まず
、ＰＴＦＥから成るプレート状の内層部材４４を曲げて
筒状にせしめ、この内層部材４４の両端部を仮付けした
後上述した如くして溶接し、しかる後その外面にＦＲＰ
　ｉ施して被覆層４６を形成すればよい。This manufacturing method can also be applied to, for example, molding a cylindrical bonded molded body as shown in FIG. 5. When molding the energized cylindrical bonded molded body shown in FIG. 5, first, a plate-shaped inner layer member 44 made of PTFE is bent into a cylindrical shape, and both ends of this inner layer member 44 are temporarily attached. After that, it is welded as described above, and then FRP is attached to the outer surface.
The coating layer 46 may be formed by applying the following steps.

また、本発明に従う第３の製造方法は、例えば第６図に
示す成形体を製造る、のに適用される。Further, the third manufacturing method according to the present invention is applied to, for example, manufacturing the molded body shown in FIG. 6.

第６図を参照して図示の成形体の構成について説明る、
と、図示の成形体は略Ｕ字状でおり、内側にＰＴＦＥか
ら成る内層含有し、外側にＦＲＰから成る外層を有して
いる。かかる成形体も、内面がＰＴＦＦＪで被われ、外
面がＦＲＰで被われている故に、第１区及び第３図に示
す接合成形体と同様に、例えば化学プラントの構成要素
として好適に利用される。The structure of the illustrated molded body will be explained with reference to FIG.
The illustrated molded body has a substantially U-shape, and includes an inner layer made of PTFE on the inside and an outer layer made of FRP on the outside. Since such a molded product has an inner surface covered with PTFFJ and an outer surface covered with FRP, it can be suitably used, for example, as a component of a chemical plant, similar to the bonded molded products shown in Section 1 and FIG. .

第６図に示す通電の成形体は、次の過少にして成形され
る。The energized molded body shown in FIG. 6 is molded in the following manner.

第６図と共に第７−Ａ図乃至第７−Ｃ図を参照して説明
る、と、上記成形体を成形る、には、まず、第７−Ａ図
に示す如く、ＰＴＦＥから成る板状体５００片面にＦＲ
Ｐ’ｉ施してその表面に被覆層５２を形成る、。この被
覆層５２を形成る、には、ＦＲＰが熱硬化性である故に
１加熱してＦＲＰを熱硬化させる必要がある。一方、加
熱る、と、比較的剛性の小さい板状体５０が熱の影響を
受けて変形る、おそれがある。そこで、この不都合を解
消る、ために、ＦＲＰｔ−施した後に、板状体５０の他
面と被覆層５２間ＫＭ要圧力を加え、熱による変形を矯
正して平坦化る、ようにる、のが好ましい。この矯正は
、実質上平坦な表面を有る、金具及び押圧工具（図示せ
ず）ｔ−用いることによって行うことができる。As will be explained with reference to FIGS. 7-A to 7-C together with FIG. 6, in order to mold the above-mentioned molded body, first, as shown in FIG. Body 500 FR on one side
P'i is applied to form a coating layer 52 on the surface. To form this covering layer 52, since FRP is thermosetting, it is necessary to heat the FRP once to thermoset it. On the other hand, when heated, there is a possibility that the plate-shaped body 50, which has relatively low rigidity, may be deformed due to the influence of heat. Therefore, in order to eliminate this inconvenience, after applying FRPt, a required KM pressure is applied between the other surface of the plate-shaped body 50 and the coating layer 52 to correct the deformation caused by heat and flatten it. is preferable. This correction can be accomplished by using a metal fitting and pressing tool (not shown), which has a substantially flat surface.

次に、第７−Ｂ図に示す如く、被覆層５２の一部を除去
る、。この被覆層５２の除去は、例えば所定の工具（図
示せず）で削シ取ることによって達成される。この除去
された部分は、後述る、如く、折曲げ部となり、従って
、具体例では所定の２個所除去る、ことになる。Next, as shown in FIG. 7-B, a portion of the covering layer 52 is removed. Removal of the coating layer 52 is achieved, for example, by scraping it off with a predetermined tool (not shown). This removed portion becomes a bent portion as described later, and therefore, in the specific example, two predetermined portions are removed.

次いで、板状体５０の他面、即ち被覆層５２が存在しな
い面が内側となるように、板状体５０の両端部を矢印５
４で示す方向に折曲せしめる。かくる、と、被覆層５２
が除去された部分の剛性が他の部分に比して著るしく小
さい故に、第７−Ｃ図に示すように折曲げられ、上述し
た部分が折曲げ部となる。Next, both ends of the plate-like body 50 are aligned with arrows 5 so that the other surface of the plate-like body 50, that is, the surface where the coating layer 52 is not present, is on the inside.
Bend it in the direction shown by 4. Cover layer 52
Since the rigidity of the removed portion is significantly lower than that of other portions, it is bent as shown in FIG. 7-C, and the above-mentioned portion becomes the bent portion.

しかる後に１折曲げ部の外面、即ち被覆層５２が除去さ
れた板状体５０の片面にＦＲＰを施して被覆層５４を形
成し、更に、被覆層５２及び５４０表面全体にＦＲＰ　
ｔ−施して被覆層５６を形成る、。After that, FRP is applied to the outer surface of the first bent part, that is, one side of the plate-like body 50 from which the covering layer 52 has been removed, to form the covering layer 54, and then FRP is applied to the entire surface of the covering layers 52 and 540.
t- to form a covering layer 56;

かくして、第６図に示す通うの成形体が成形され、この
成形体はＰＴＦＥから成る内層とＦＲＰから成る外層を
有る、。In this way, the molded body shown in FIG. 6 is molded, and this molded body has an inner layer of PTFE and an outer layer of FRP.

上述した製造方法においては、被覆層５２及び５４０表
面に更に被覆層５６を設けているが、被覆層５２及び５
４によって十分な耐久性等が保れる場合には、被覆層５
６ｔ−省略してもよい。In the manufacturing method described above, the coating layer 56 is further provided on the surfaces of the coating layers 52 and 540;
If sufficient durability etc. can be maintained by 4, coating layer 5
6t - May be omitted.

かかる製造方法は、例えば第８図に示す多角形の筒状接
合成形体を成形る、場合にも適用る、ことができる。第
８図に示す通υの接合成形体を成形る、場合には、ＰＴ
ＦＥから成る板状体５８の片面にＦＲＰから成る被覆層
６０を形成し、次に、折曲げ部となる部分の核ａ層６０
を除去しく具体例では３個所）、次いで、板状体５８を
折曲げて４角形状にし、その両端を上述した方法によっ
て溶接し、その後折曲げ部の外面にＦＲＰを施して被覆
層６２を形成し、しかる後外表面全体にＦＲＰを施して
被覆層６４を形成すればよい。This manufacturing method can also be applied to the case of molding a polygonal cylindrical joined molded body as shown in FIG. 8, for example. In the case of molding a jointed molded body of υ shown in Fig. 8, PT
A coating layer 60 made of FRP is formed on one side of the plate-like body 58 made of FE, and then a core layer 60 of the portion that will be the bent portion is formed.
(3 places in the specific example), the plate-shaped body 58 is bent into a square shape, both ends of which are welded by the method described above, and then FRP is applied to the outer surface of the bent part to form a coating layer 62. After that, the entire outer surface may be coated with FRP to form the covering layer 64.

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

第１図は、本発明に従う第１の方法によって製造された
接合成形体を示す断面図。 第２−Ａ図及び第２−Ｂ図は、夫々、第１図の接合成形
体の製造方法を説明る、ための簡略断面図。 第３図は、本発明に従う第２の方法によって製造された
接合成形体を示す断面図。 第４−Ａ図乃至第４−Ｄ図は、夫々、第３図の接合成形
体の製造方法を説明る、ための簡略断面図。 第５図は、本発明に従う第２の方法を利用して製造され
た管状接合体を示す斜視図。 第６図は、本発明に従う第３の方法によって製造された
成形体を示す断面図。 第７−Ａ図乃至第７−Ｃ図は、夫々、第６図の接合成形
体の製造方法を説明る、ための簡略断面図。 第８図は、本発明に従う第３の方法を利用して製造され
た管状接合体を示す斜視図。 ２・・・管状主部 ４・・・フランジ部 ６・・・管状体 ８・・・円板状体 １４・・・被覆層 １６・・・フランジ体 ３０・・・第１の内層部材 ３２・・・第２の内層部材 ３４・・・仮付は層 ５０・・・板状体 ５２及び５４・・・被覆層 特許出願人　　赤武エンジニアリング株式会社代理人　
弁理士　　小　　野　　尚　　電、Ｉ　Ｆ、’、ｌ、　
　　。 、−１卜一二 ′￥−８図 コど 第７−Ａ図 第７−Ｃ図FIG. 1 is a sectional view showing a bonded molded body manufactured by a first method according to the present invention. 2-A and 2-B are simplified cross-sectional views for explaining a method of manufacturing the bonded molded body of FIG. 1, respectively. FIG. 3 is a sectional view showing a bonded molded body manufactured by the second method according to the present invention. 4-A to 4-D are simplified cross-sectional views for explaining a method of manufacturing the bonded molded body of FIG. 3, respectively. FIG. 5 is a perspective view of a tubular assembly manufactured using a second method according to the present invention. FIG. 6 is a sectional view showing a molded article manufactured by the third method according to the present invention. 7-A to 7-C are simplified cross-sectional views for explaining a method of manufacturing the bonded molded body of FIG. 6, respectively. FIG. 8 is a perspective view of a tubular joint manufactured using a third method according to the present invention. 2... Tubular main portion 4... Flange portion 6... Tubular body 8... Disc-shaped body 14... Covering layer 16... Flange body 30... First inner layer member 32... ... Second inner layer member 34 ... Layer 50 for temporary attachment ... Plate bodies 52 and 54 ... Covering layer Patent applicant: Agent of Akabu Engineering Co., Ltd.
Patent Attorney Naoden Ono, IF,',l,
. , -1 12'\-8 Figure 7-A Figure 7-C

Claims (1)

【特許請求の範囲】 １、内層がポリテトラフルオロエチレンから成り、外層
が繊維強化プラスチツクから成るフランジ部を有する管
状接合成形体を製造する方法において、 ポリテトラフルオロエチレンから成る管状体の一端にポ
リテトラフルオロエチレンから成る円板状体を溶接し、 次に、該円板状体の外面に繊維強化プラスチツクを施し
て被覆層を形成し、 次いで、繊維強化プラスチツクから成るフランジ体を該
被覆層を介して該円板状体の外面に加圧接合し、 しかる後、該管状体及び該フランジ体の外面に繊維強化
プラスチツクを被覆する、 ことを特徴とする成形体の製造方法。 ２、該フランジ体を該円板状体に加圧接合する際には、
該円板状体の内面を実質上平坦な表面を有する金具の該
表面に接触させ、該フランジ体を該金具に向けて押圧せ
しめる、特許請求の範囲第１項記載の成形体の製造方法
。 ３、該管状体と該円板状体の溶接は、その接合部にパー
フルオロアルコキシフルオロカーボンを施し、両者間に
その中介層を生成せしめることにより行なわれる、特許
請求の範囲第１項又は第２項記載の成形体の製造方法。 ４、該管状体と該円板状体の該接合部には、該中介層が
介在される凹所が形成されている、特許請求の範囲第３
項記載の成形体の製造方法。 ５、該管状体と該円板状体を溶接した後に、該中介層を
導電性材料で被覆して通電検査を行う、特許請求の範囲
第３項又は第４項記載の成形体の製造方法。 ６、該円板状体の外面にはサンドブラスト加工が施され
ている、特許請求の範囲第１項乃至第５項のいずれかに
記載の成形体の製造方法。 ７、該円板状体の外面にはエツチング処理が施されてい
る、特許請求の範囲第１項乃至第５項のいずれかに記載
の成形体の製造方法。 ８、内層がポリテトラフルオロエチレンから成り、外層
が繊維強化プラスチツクから成る、接合成形体を製造す
る方法において、 ポリテトラフルオロエチレンから成る第１の内層部材の
一端側とポリテトラフルオロエチレンから成る第２の内
層部材の一端側の片面側に繊維強化プラスチツクを施し
て仮付け層を形成し、これによつて該仮付け層を介して
仮付けし、次に、該第１の内層部材の該一端側と該第２
の内層部材の該一端側の他面側を溶接し、 次いで、該仮付け層を除去して該第１の内層部材の該一
端側と該第２の内層部材の該一端側の該片面側を溶接す
る、 ことを特徴とする成形体の製造方法。 ９、該第１の内層部材と該第２の内層部材の該他面側及
び該片面側を溶接した後に、更に、該第１の内層部材及
び該第２の内層部材の外面に繊維強化プラスチツクを被
覆する、特許請求の範囲第８項記載の成形体の製造方法
。 １０、該第１の内層部材と該第２の内層部材の該他面側
を溶接した後に、該第１の内層部材及び該第２の内層部
材の該他面に繊維強化プラスチツクを被覆する、特許請
求の範囲第８項記載の成形体の製造方法。 １１、該第１の内層部材と該第２の内層部材を仮付けす
る際に、該第１の内層部材の該一端側及び該第２の内層
部材の該一端側の該片面側と該他面側間に圧力を加える
、特許請求の範囲第８項乃至第１０項のいずれかに記載
の成形体の製造方法。 １２、該第１の内層部材と該第２の内層部材の該片面側
及び該他面側の溶接は、その接合部にパーフルオロアル
コキシフルオロカーボンを施し、両者間にその中介層を
生成せしめることにより行なわれる、特許請求の範囲第
８項乃至第１１項のいずれかに記載の成形体の製造方法
。 １３、該第１の内層部材と該第２の内層部材の該片面側
を仮付けした後に、該第１の内層部材の一端と該第２の
内層部材の一端の該他面側に該中介層が介在される凹所
を形成する、特許請求の範囲第１２項記載の成形体の製
造方法。 １４、該仮付け層を除去した後に、該第１の内層部材の
一端と該第２の内層部材の一端の該片面側に該中介層が
介在される凹所を形成する、特許請求の範囲第１２項又
は第１３項記載の成形体の製造方法。 １５、該第１の内層部材と該第２の内層部材の該片面側
を溶接した後に、該中介層を導電性材料で被覆して通電
検査を行う、特許請求の範囲第１２項乃至第１４項のい
ずれかに記載の成形体の製造方法。 １６、該第１の内層部材と該第２の内層部材は同一の内
層部材であり、該内層部材の両端部を溶接することによ
つて筒状にせしめる、特許請求の範囲第８項乃至第１５
項のいずれかに記載の成形体の製造方法。 １７、内層がポリテトラフルオロエチレンから成り、外
層が繊維強化プラスチツクから成る、折曲げ部を有する
成形体を製造する方法において、ポリテトラフルオロエ
チレンから成る板状体の片面に繊維強化プラスチツクを
施してその表面に被覆層を形成し、 次に、該被覆層の一部を除去して折曲げ部となる部分を
形成し、 次いで、該板状体の他面が内側となるように該板状体を
折曲せしめ、 しかる後、該板状体の該折曲げ部の外面に繊維強化プラ
スチツクを被覆する、 ことを特徴とする成形体の製造方法。 １８、該板状体の片面に繊維強化プラスチツクを施した
後に、該板状体の他面と該被覆層間に圧力を加えて平坦
化する、特許請求の範囲第１７項記載の成形体の製造方
法。[Claims] 1. A method for manufacturing a tubular joined molded article having a flange portion in which the inner layer is made of polytetrafluoroethylene and the outer layer is made of fiber-reinforced plastic, wherein one end of the tubular body made of polytetrafluoroethylene is A disk-shaped body made of tetrafluoroethylene is welded, then fiber-reinforced plastic is applied to the outer surface of the disk-shaped body to form a coating layer, and then a flange body made of fiber-reinforced plastic is coated with the coating layer. 1. A method for manufacturing a molded body, comprising: pressurizing and joining the outer surface of the disc-shaped body through a fiber-reinforced plastic, and then coating the outer surfaces of the tubular body and the flange body with fiber-reinforced plastic. 2. When joining the flange body to the disc-shaped body under pressure,
2. The method of manufacturing a molded body according to claim 1, wherein the inner surface of the disc-shaped body is brought into contact with the surface of a metal fitting having a substantially flat surface, and the flange body is pressed against the metal fitting. 3. The welding of the tubular body and the disk-shaped body is carried out by applying perfluoroalkoxyfluorocarbon to the joint part and forming an intermediate layer between the two, claim 1 or 2. 2. Method for producing a molded article as described in Section 1. 4. Claim 3, wherein a recess in which the intermediate layer is interposed is formed in the joint portion of the tubular body and the disk-shaped body.
2. Method for producing a molded article as described in Section 1. 5. A method for manufacturing a molded body according to claim 3 or 4, which comprises welding the tubular body and the disk-shaped body, and then coating the intermediate layer with a conductive material and conducting a current test. . 6. The method for producing a molded body according to any one of claims 1 to 5, wherein the outer surface of the disk-shaped body is sandblasted. 7. The method for producing a molded body according to any one of claims 1 to 5, wherein the outer surface of the disc-shaped body is subjected to an etching treatment. 8. A method for producing a bonded molded article in which the inner layer is made of polytetrafluoroethylene and the outer layer is made of fiber-reinforced plastic, wherein one end side of the first inner layer member made of polytetrafluoroethylene and the first inner layer member made of polytetrafluoroethylene are provided. Fiber-reinforced plastic is applied to one side of one end of the second inner layer member to form a tack layer, and tack is applied through the tack layer. one end side and the second
the other side of the one end side of the inner layer member is welded, and then the temporary attachment layer is removed and the one side of the one end side of the first inner layer member and the one side of the one end side of the second inner layer member are welded. A method for producing a molded body, comprising: welding. 9. After welding the other side and the one side of the first inner layer member and the second inner layer member, further welding fiber reinforced plastic to the outer surfaces of the first inner layer member and the second inner layer member. A method for producing a molded article according to claim 8, wherein the molded article is coated with. 10. After welding the other surfaces of the first inner layer member and the second inner layer member, coating the other surfaces of the first inner layer member and the second inner layer member with fiber reinforced plastic; A method for producing a molded article according to claim 8. 11. When temporarily attaching the first inner layer member and the second inner layer member, the one side of the one end side of the first inner layer member and the one side of the one end side of the second inner layer member and the other The method for producing a molded article according to any one of claims 8 to 10, wherein pressure is applied between the surfaces. 12. Welding of the one side and the other side of the first inner layer member and the second inner layer member is performed by applying perfluoroalkoxyfluorocarbon to the joint portion and creating an intermediate layer between the two. A method for manufacturing a molded article according to any one of claims 8 to 11, which is carried out. 13. After temporarily attaching the one side of the first inner layer member and the second inner layer member, attach the intermediate member to the other side of one end of the first inner layer member and one end of the second inner layer member. 13. The method for producing a molded body according to claim 12, wherein a recess in which the layer is interposed is formed. 14. A claim in which, after removing the temporary layer, a recess in which the intermediate layer is interposed is formed on one side of one end of the first inner layer member and one end of the second inner layer member. The method for producing a molded article according to item 12 or 13. 15. After welding the one side of the first inner layer member and the second inner layer member, the intermediate layer is coated with a conductive material and a conduction test is performed.Claims 12 to 14 A method for producing a molded article according to any one of paragraphs. 16. The first inner layer member and the second inner layer member are the same inner layer member, and the inner layer member is made into a cylindrical shape by welding both ends thereof. 15
A method for producing a molded article according to any one of paragraphs. 17. A method for manufacturing a molded article having a bent part, the inner layer of which is made of polytetrafluoroethylene and the outer layer of which is made of fiber-reinforced plastic, including applying fiber-reinforced plastic to one side of a plate-shaped body made of polytetrafluoroethylene. A coating layer is formed on the surface of the plate, a part of the coating layer is removed to form a bent part, and the plate is turned so that the other surface of the plate is on the inside. 1. A method for producing a molded article, comprising: bending the body, and then coating the outer surface of the bent portion of the plate-like body with fiber-reinforced plastic. 18. Manufacture of a molded article according to claim 17, wherein after applying fiber-reinforced plastic to one side of the plate-shaped body, pressure is applied between the other side of the plate-shaped body and the coating layer to flatten it. Method.
JP59196857A 1984-09-21 1984-09-21 Manufacture of molded material Granted JPS6174830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59196857A JPS6174830A (en) 1984-09-21 1984-09-21 Manufacture of molded material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59196857A JPS6174830A (en) 1984-09-21 1984-09-21 Manufacture of molded material

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP27851189A Division JPH02160531A (en) 1989-10-27 1989-10-27 Manufacture of article made of composite material having bent part
JP1278510A Division JPH02167728A (en) 1989-10-27 1989-10-27 Preparation of article made of composite material

Publications (2)

Publication Number Publication Date
JPS6174830A true JPS6174830A (en) 1986-04-17
JPH0226852B2 JPH0226852B2 (en) 1990-06-13

Family

ID=16364807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59196857A Granted JPS6174830A (en) 1984-09-21 1984-09-21 Manufacture of molded material

Country Status (1)

Country Link
JP (1) JPS6174830A (en)

Also Published As

Publication number Publication date
JPH0226852B2 (en) 1990-06-13

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