JPH11270771A - 複合管の継手構造 - Google Patents

複合管の継手構造

Info

Publication number
JPH11270771A
JPH11270771A JP10073891A JP7389198A JPH11270771A JP H11270771 A JPH11270771 A JP H11270771A JP 10073891 A JP10073891 A JP 10073891A JP 7389198 A JP7389198 A JP 7389198A JP H11270771 A JPH11270771 A JP H11270771A
Authority
JP
Japan
Prior art keywords
tube
pipe
joint
joint body
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10073891A
Other languages
English (en)
Inventor
Eiichi Sugiura
鋭一 杉浦
Michio Uzawa
道雄 鵜澤
Hirobumi Yokoyama
博文 横山
Sumio Ichikawa
澄夫 市川
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP10073891A priority Critical patent/JPH11270771A/ja
Publication of JPH11270771A publication Critical patent/JPH11270771A/ja
Pending 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
    • 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
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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
    • B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap 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
    • B29C66/01—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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/342—Preventing air-inclusions
    • 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
    • B29C66/50—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
    • B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
    • 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
    • B29C66/52294—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being heated
    • 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
    • B29C66/52296—Joining tubular articles involving the use of a socket said socket comprising sealing elements, e.g. gaskets
    • 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
    • B29C66/72—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
    • B29C66/7232—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 comprising a non-plastics layer
    • B29C66/72321—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 comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3484—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being non-metallic
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/362—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • 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
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • 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
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】 【課題】 複合管同士を継手を介して互いに接合する場
合に、管内に継手が突出せず、しかも、管端加熱時に内
面管および外面管が剥離することがなく、更に、管径に
無関係に適用できる。 【解決手段】 金属管７の内側に内面管８Ａが被せら
れ、金属管７の外側に外面管８Ｂが被せられ、内面管８
Ａおよび外面管８Ｂは、何れも合成樹脂からなる複合管
の継手構造において、金属 管７の管端から内面管８Ａ
の管端のみを突出させ、内面管８Ａの管端外周面と外面
管８Ｂの管端外周面との間に装着される、内面管８Ａお
よび外面管８Ｂと同一材質の管状継手本体９と、継手
本体９内に埋設された通電発熱体１０とからなる。継手
本体９の内面には、金属管７および外面管８Ｂの端面が
当接される段部９Ａが形成されている。通電発熱体１０
に通電して、継手本体９と内面管８Ａおよび外面管８Ｂ
の管端とを加熱溶融して、これらを一体化する。

Description

【発明の詳細な説明】
【０００１】
【発明の属する技術分野】この発明は、複合管の継手構
造、特に、金属管の内面に合成樹脂製内面管が、そし
て、外面に合成樹脂製外面管が被せられたものからなる
複合管同士を継手を介して互いに接合する場合に、管内
に継手が突出せず、しかも、管端加熱時に内面管および
外面管が剥離することがなく、更に、管径に無関係に適
用できる、複合管の継手構造に関するものである。
【０００２】
【従来の技術】鋼管等の金属管内外面にポリエチレン管
等の合成樹脂管を挿入したものからなる複合管は、合成
樹脂管の作用によって耐食性に優れ、且つ、金属管の肉
厚を薄くすることかできることから軽量化が図れて、取
扱いが容易であるといった利点を有している。従って、
このような利点を有する複合管は、上下水道管等に広く
使用されている。
【０００３】特開平５−１９６１８７号公報には、上記
複合管の接合方法が開示されている。同公報に開示され
た複合管の継手構造（以下、この継手構造を従来技術と
いう。）を、図面を参照しながら説明する。図４は、従
来技術を示す概略断面図である。
【０００４】図４に示すように、従来技術は、金属管１
と、金属管１の内側に配された合成樹脂製内面管２とか
らなる複合管３の接続管端に熱可塑性合成樹脂製継手４
を装着し、この継手４の周囲に誘導 加熱コイル５を配
し、誘導加熱コイル５に高周波電流を通電することによ
り金属管１を誘導加熱して、継手４と合成樹脂管２の管
端とを溶融して、これらを一体化し、かくして、金属管
１同士を継手４を介して互いに接合するものである。
【０００５】
【発明が解決しようとする課題】しかしながら、上述し
た方法は、次のような問題点を有している。 複合管の耐食性を向上させる場合には、図４に示す
ように、金属管１の内側に内面管２を配す必要がある
が、この場合には、継手４が内面管２の内側に突出す
る。従って、複合管３内の水流に悪影響を及ぼす。 複合管３の周囲に配する誘導加熱用コイル５の径
は、複合管３の外径毎に変える必要があるので、コスト
高となる。 金属管１の誘導加熱により、内面管２の管端及び継
手４を溶融して、これらを一体化するが 、誘導加熱さ
れた金属管１の熱によって、加熱の必要がない内面管２
の管端部分が加熱されてしまい、この部分の内面管２が
金属管１から剥離する等の恐れがある。
【０００６】従って、この発明の目的は、金属管の内面
に合成樹脂製内面管が、そして、外面に合成樹脂製外面
管が被せられたものからなる複合管同士を継手を介して
互いに接合する場合に、管内に継手が突出せず、しか
も、管端加熱時に内面管および外面管が剥離することが
なく、更に、管径に無 関係に適用できる、複合管の継
手構造を提供することにある。
【０００７】
【課題を解決するための手段】請求項１記載の発明は、
金属管の内側に内面管が被せられ、前記金属管の外側に
外面管が被せられ、前記内面管および前記外面管は、何
れも合成樹脂からなる複合管の継手構造において、前記
金属管の管端から前記内面管の管端のみを突出させ、前
記内面管の管端外周面と前記外面管の管端外周面との間
に装着される、前記内面管および前記外面管と同一材質
の管状継手本体と、前記継手本体内に埋設された通電発
熱体とからなり、前記継手本体の内面には、前記金属管
および前記外面管の端面が当接される段部が形成され、
前記通電発熱体に通電して、前記継手本体と前記内面管
および前記外面管の管端とを加熱溶融して、これらを一
体化し、かくして、前記複合管 同士を前記継手本体を
介して互いに接合することに特徴を有するものである。
【０００８】請求項２記載の発明は、前記段部の軸方向
中央部内面には、前記内面管の端面が当接される管端位
置決め用突起が形成されていることに特徴を有するもの
である。
【０００９】請求項３記載の発明は、前記金属管および
前記外面管の端面と前記段部との間に、ゴム輪が嵌め込
まれていることに特徴を有する有するものである。請求
項４記載の発明は、前記金属管および前記外面管の端面
と前記段部との隙間内の空気を抜くための空気抜き孔が
前記継手本体内に形成されていることに特徴を有するも
のである。
【００１０】
【発明の実施の形態】この発明の、複合管の継手構造の
一実施態様を、図面を参照しながら説明する。
【００１１】図１は、この発明の、複合管の継手構造の
一実施態様を示す部分断面図、図２は、この発明の、複
合管の継手構造の別の実施態様を示す部分断面図、そし
て、図３は、この発明の、複合管の継手構造の更に別の
実施態様を示す部分断面図である。
【００１２】図１において、６は、複合管である。複合
管６は、鋼管等の金属管７と、金属管７の内側に被せら
れた内面管８Ａと、金属管７の外側に被せられた外面管
８Bとからなっている。外面管８B の管端は、金属管７
の管端から長さ（Ｌ）だけ突出している。９は、内面管
８Ａの管端外周面と外面管８Ｂの管端外周面との間に装
着される管状継手本体である。継手本体９は、内面管８
Ａおよび外面管８Ｂと同一材質からなっている。継手本
体９の内面には、金属管７および外面管８Ｂの端面が当
接される段部９Ａが形成されている。段部９Ａの軸方向
中央部内面に、管端位置決め用突起９Ｂをリング状に形
成すれば、管端の位置決めが容易に行える。この場合、
突起９Ｂの高さは、突起９Ｂが内面管８Ａの内面から突
出しない高さとする。
【００１３】継手本体９内には、通電発熱体１０がコイ
ル状に埋め込まれている。通電発熱体１０には、ターミ
ナル１１から通電できるようになっている。通電発熱体
１０は、ニクロム線以外に通電発熱 繊維であっても良
い。通電発熱繊維は、マイクロメタルファイバーとアラ
ミド繊維とからなっており、優れた柔軟性及び耐久性を
有し、ニクロム線とほぼ同等の電気熱特性を有してい
る。
【００１４】この発明の継手構造は、以上のように構成
されているので、複合管６同士は、以下のようにして互
いに接合される。内面管８Ａの管端が継手本体９の突起
９Ｂに当接するように、継手本体９を合複合管６の管端
の外周面間に装着する。次に、ターミナル１１に電源を
接続して通電発熱体１０に通電する。これによって、継
手本体９と内面管８Ａ及び外面管８Ｂの管端とが加熱溶
融して、これらが一体化する。かくして、複合管６同士
が継手本体９を介して互いに接合される。
【００１５】この発明によれば、内面管８Ａの管端を金
属管７の管端から突出させることによって、継手本 体
９の内面から内面管８Ａが突出しない。従って、複合管
３内の水流に悪影響を及ぼす恐れはな い。
【００１６】しかも、通電発熱体１１は、継手本体９内
に容易に埋設することができるので、誘導加熱コイ ル
を複合管３の外径毎に変えて用意する場合に比べて、コ
ストは安く済む。
【００１７】更に、継手本体９と直接、接触する合成樹
脂管８の表層のみが優先的に溶融するので、誘導加熱に
よる場合に比べて、加熱の必要がない内面管８Ａ及び外
面管８Ｂの管端部分が加熱される恐れは少ない。従っ
て、管端加熱時に内面管８Ａおよび外面管８Ｂが金属管
７から剥離することが ない。
【００１８】図２に示すように、金属管７および外面管
８Ｂの端面と段部９Ａとの間に、ゴム輪１２を嵌め込め
ば、継手部分のシール効果が更に向上する。更に、図３
に示すように、金属管７および外面管８Ｂの端面と段部
９Ａとの隙間内の空気を抜くための空気抜き孔９Ｃを継
手本体９内に形成すれば、融着時の発熱に伴う空気の膨
張分を外部に逃がすことができる。従って、空気膨張に
よる融着不良の問題がなくなる。なお、図２および図３
において、図１と同一番号は、同一物を示す。
【００１９】
【発明の効果】以上説明したように、この発明によれ
ば、金属管の内面に合成樹脂製内面管が、そして、外面
に合成樹脂製外面管が被せられたものからなる複合管同
士を継手を介して互いに接合する場合に、管内に継手が
突出せず、しかも、管端加熱時に内面管および外面管が
剥離することがなく、更に、管径に無関係に適用できる
といった有用な効果がもたらされる。
【図面の簡単な説明】
【図１】この発明の、複合管の継手構造の一実施態様を
示す部分断面図である。
【図２】 この発明の、複合管の継手構造の別の実施態
様を示す部分断面図である。
【図３】 この発明の、複合管の継手構造の更に別の実
施態様を示す部分断面図である。
【図４】 従来技術を示す部分断面図である。
【符号の説明】
１：金属管 ２：内面管 ３：複合管 ４：継手 ５：誘導加熱コイル ６：複合管 ７：金属管 ８Ａ：内面管 ８Ｂ：外面管 ９：継手本体 ９Ａ：段部 ９Ｂ：突起 ９Ｃ：空気抜き孔 １０：通電発熱体 １１：ターミナル １２：ゴム輪
───────────────────────────────────────────────────── フロントページの続き (72)発明者 市川 澄夫 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内

Claims (4)

    【特許請求の範囲】
  1. 【請求項１】 金属管の内側に内面管が被せられ、前記
    金属管の外側に外面管が被せられ、 前記内面管および
    前記外面管は、何れも合成樹脂からなる複合管の継手構
    造において、 前記金属管の管端から前記内面管の管端のみを突出さ
    せ、前記内面管の管端外周面と前記外面 管の管端外周
    面との間に装着される、前記内面管および前記外面管と
    同一材質の管状継手本体と、前記継手本体内に埋設され
    た通電発熱体とからなり、前記継手本体の内面には、前
    記金属管および前記外面管の端面が当接される段部が形
    成され、前記通電発熱体に通電して、前記継手本体と前
    記内面管および前記外面管の管端とを加熱溶融して、こ
    れらを一体化し、かくして、前記複合管同士を前記継手
    本体を介して互いに接合することを特徴とする、複合管
    の継手構造。
  2. 【請求項２】 前記段部の軸方向中央部内面には、前記
    内面管の端面が当接される管端位置決め用突起が形成さ
    れていることを特徴とする、請求項１記載の継手構造。
  3. 【請求項３】 前記金属管および前記外面管の端面と前
    記段部との間には、ゴム輪が嵌め込まれていることを特
    徴とする、請求項１または２記載の継手構造。
  4. 【請求項４】 前記金属管および前記外面管の端面と前
    記段部との隙間内の空気を抜くための空気抜き孔が前記
    継手本体内に形成されていることを特徴とする、請求項
    １から３のうちの何れか１つに記載された継手構造。
JP10073891A 1998-03-23 1998-03-23 複合管の継手構造 Pending JPH11270771A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10073891A JPH11270771A (ja) 1998-03-23 1998-03-23 複合管の継手構造

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10073891A JPH11270771A (ja) 1998-03-23 1998-03-23 複合管の継手構造

Publications (1)

Publication Number Publication Date
JPH11270771A true JPH11270771A (ja) 1999-10-05

Family

ID=13531295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10073891A Pending JPH11270771A (ja) 1998-03-23 1998-03-23 複合管の継手構造

Country Status (1)

Country Link
JP (1) JPH11270771A (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2425337A (en) * 2005-04-22 2006-10-25 Uponor Innovation Ab Electrofusion fitting to seal barrier layer of composite pipe
JP2007040385A (ja) * 2005-08-02 2007-02-15 Mitsubishi Kagaku Sanshi Corp ブレードホース接続用エレクトロヒュージョン継手
WO2008113488A2 (de) * 2007-03-21 2008-09-25 Friatec Aktiengesellschaft Ausgleichselement zum verbinden von bauteilen
CN100429448C (zh) * 2004-01-26 2008-10-29 株式会社Acorn 管道的热熔装配连接器
WO2009004377A2 (en) * 2007-07-05 2009-01-08 Radius Systems Limited Electrofusion fitting for a composite pipe
WO2009007511A1 (en) * 2007-07-10 2009-01-15 Oy Kwh Pipe Ab Method of grounding multilayer pipes and pipeline comprising multilayer pipe
JP2012042048A (ja) * 2010-06-23 2012-03-01 Norma Germany Gmbh パイプ配列
US8398908B2 (en) 2004-12-23 2013-03-19 Radius Systems Limited Plastics pipe
CN110005876A (zh) * 2019-04-06 2019-07-12 河北宇通特种胶管有限公司 一种塑玻管连接电熔管件及连接方法

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100429448C (zh) * 2004-01-26 2008-10-29 株式会社Acorn 管道的热熔装配连接器
US8398908B2 (en) 2004-12-23 2013-03-19 Radius Systems Limited Plastics pipe
WO2006111738A1 (en) * 2005-04-22 2006-10-26 Uponor Innovation Ab Electrofusion fitting for a composite pipe
GB2425337A (en) * 2005-04-22 2006-10-25 Uponor Innovation Ab Electrofusion fitting to seal barrier layer of composite pipe
JP2007040385A (ja) * 2005-08-02 2007-02-15 Mitsubishi Kagaku Sanshi Corp ブレードホース接続用エレクトロヒュージョン継手
WO2008113488A2 (de) * 2007-03-21 2008-09-25 Friatec Aktiengesellschaft Ausgleichselement zum verbinden von bauteilen
WO2008113488A3 (de) * 2007-03-21 2009-01-22 Friatec Ag Ausgleichselement zum verbinden von bauteilen
US8455067B2 (en) 2007-03-21 2013-06-04 Friatec Aktiengesellschaft Compensation element for joining components
WO2009004377A2 (en) * 2007-07-05 2009-01-08 Radius Systems Limited Electrofusion fitting for a composite pipe
WO2009004377A3 (en) * 2007-07-05 2009-06-25 Radius Systems Ltd Electrofusion fitting for a composite pipe
WO2009007511A1 (en) * 2007-07-10 2009-01-15 Oy Kwh Pipe Ab Method of grounding multilayer pipes and pipeline comprising multilayer pipe
RU2473834C2 (ru) * 2007-07-10 2013-01-27 Ои Квх Пайп Аб Способ заземления многослойных труб и трубопровод, содержащий такие трубы
JP2012042048A (ja) * 2010-06-23 2012-03-01 Norma Germany Gmbh パイプ配列
US9482376B2 (en) 2010-06-23 2016-11-01 Norma Germany Gmbh Pipe arrangement
CN110005876A (zh) * 2019-04-06 2019-07-12 河北宇通特种胶管有限公司 一种塑玻管连接电熔管件及连接方法

Similar Documents

Publication Publication Date Title
JPH05196187A (ja) 管と継手との接続方法
JPH11270771A (ja) 複合管の継手構造
JPS5951886B2 (ja) 被覆方法
JPH10281383A (ja) 電気融着継手
JPH10246382A (ja) 合成樹脂管用電気融着継手
JPH09144977A (ja) 電気融着管継手
JPH06265082A (ja) 電気融着継手
JPH10160081A (ja) 合成樹脂管用継手
JPH11159684A (ja) 複合管の継手構造
JPH10220676A (ja) 合成樹脂管用電気融着継手
JP2002295779A (ja) エレクトロフュージョン継手
JPH10259895A (ja) 樹脂管およびその突き合わせ融着接合法
JPS6140543B2 (ja)
JPH1113980A (ja) 合成樹脂管用継手
JP3644857B2 (ja) 樹脂製配管部材の継手方法
JP2650083B2 (ja) 流体輸送管と分岐管の接続方法
JPH11336984A (ja) 複合管の接合構造
JPH10246381A (ja) 合成樹脂管用電気融着継手
JPH10169847A (ja) 電気融着継手の固定方法
JPH01238794A (ja) 複合管と管継手との接続構造
JPH09242973A (ja) クランプ付融着継手
JPH10185068A (ja) 電気融着継手の固定方法
JPH10169879A (ja) 合成樹脂管用継手
JPH05340495A (ja) 複合管およびその接続構造
JPH07180786A (ja) バルブ部材