JPH0245978B2 - - Google Patents

Info

Publication number
JPH0245978B2
JPH0245978B2 JP58039503A JP3950383A JPH0245978B2 JP H0245978 B2 JPH0245978 B2 JP H0245978B2 JP 58039503 A JP58039503 A JP 58039503A JP 3950383 A JP3950383 A JP 3950383A JP H0245978 B2 JPH0245978 B2 JP H0245978B2
Authority
JP
Japan
Prior art keywords
sheet
heat
shrinkable
thermoplastic resin
laminated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP58039503A
Other languages
English (en)
Other versions
JPS59164114A (ja
Inventor
Kenro Takasuka
Korenobu Nishio
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP58039503A priority Critical patent/JPS59164114A/ja
Publication of JPS59164114A publication Critical patent/JPS59164114A/ja
Publication of JPH0245978B2 publication Critical patent/JPH0245978B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/10—Making preforms having internal stresses, e.g. plastic memory by bending plates or sheets
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/38—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses
    • B29C63/40—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor by liberation of internal stresses using sheet or web-like material
    • 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
    • B29C65/022—Particular heating or welding methods not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5021—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
    • 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
    • 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
    • B29K2023/08—Copolymers of ethylene
    • B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
    • 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
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0049—Heat shrinkable

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は被覆方法に関する。
従来鋼管やケーブルの接続部、端部等を防食、
防水、保護するために、熱収縮性シートを巻き付
け、重ね合せ部に粘着剤層もしくはホツトメルト
接着剤層が設けられた固定用シートを積層し、粘
着剤もしくはホツトメルト接着剤で熱収縮性シー
トを固定し、しかるのち加熱収縮せしめることに
よつて被覆している。
しかしながら上記被覆方法では、熱収縮性フイ
ルムを加熱して収縮せしめるので、収縮の際に粘
着剤層もしくはホツトメルト接着剤層も加熱さ
れ、粘着もしくは接着部にズレが生じ剥離すると
いう欠点があつた。
本発明は上記欠点に鑑み、熱収縮性フイルムを
加熱して収縮せしめる際に、ズレが生じて剥離す
ることなく被覆する方法を提供せんとしてなされ
たものであつて、その要旨は、熱収縮性シート
を、両端部が重り合うかもしくは隣接するように
被覆対象物に巻付け、該重ね合せ部もしくは隣接
部に固定用熱可塑性樹脂シートを重ね合せ、該熱
可塑性シートの表側の両端部付近に設けられた火
薬層を燃焼することにより、該熱可塑性樹脂シー
トの両端部付近と上記熱収縮性シートの両端部付
近とを接着し、上記熱収縮性シートを加熱により
収縮せしめることを特徴とする被覆方法に存す
る。
本発明における熱収縮性シートとしては熱収縮
性を有する任意のシートが使用でき、たとえばポ
リエチレン、ポリプロピレン、ポリ塩化ビニル、
エチレン−酢酸ビニル共重合体、エチレン−エチ
ルアクリレート共重合体、シリコンゴム、エチレ
ン−プロピレンゴム等で製されたシートを延伸加
工して加熱収縮性が付与されたシートがあげら
れ、該シートは架橋されていると耐熱性が向上す
るので好ましく、特に架橋ポリエチレンシートで
製されているのが好ましい。
又火薬を燃焼することによつて接着する端部付
近をのぞいて熱収縮性シートの一面に、被覆対象
物との密着性、防水性、防食性等を向上せしめる
ために接着剤、粘着剤、防食材料等を積層しても
よい。
上記接着剤としては、たとえばエチレン−酢酸
ビニル共重合体、スチレン−ブタジエン共重合
体、スチレン−イソプレン共重合体、エチレン−
エチルアクリレート共重合体、ポリエチレン等を
主体とするホツトメルト型接着剤があげられ、上
記粘着剤としては天然ゴム、ブチルゴム、クロロ
プレン等を主体とするゴム系粘着剤、アクリル系
粘着剤などがあげられる。
又上記防食材料としては、上記接着剤や粘着剤
はアスフアルトや防錆顔料を添加したもの、ペト
ロラタム等があげられる。
本発明における熱可塑性樹脂シートは熱可塑性
を有する樹脂で製されたシートであればよいが、
上記熱収縮性シートと熱融着しやすいものが好ま
しく、たとえばポリエチレン、ポリプロピレン、
ポリ塩化ビニル、エチレン−酢酸ビニル共重合
体、エチレン−エチルアクリレート共重合体、シ
リコンゴム、エチレン−プロピレンゴム等があげ
られ、熱収縮性シートを構成する樹脂と同一の樹
脂で製されるのが好ましい。
本発明における火薬としては、たとえば黒色火
薬、無煙火薬等があげられ、火薬を厚紙等にしみ
こませて火薬層を形成してもよい。火薬層は固定
用の熱可塑性樹脂シートの表側の両端部付近に予
め設けられていてもよいし、熱可塑性樹脂シート
を、熱収縮性シートを被覆対象物に巻付けて形成
された重ね合せ部もしくは隣接部に重ね合せた後
設けられてもよい。
又火薬を燃焼させた際に、熱が長時間たくわえ
られ、かつ均一に伝達されるように、アルミニウ
ム板、鋼板等の一面に火薬を積層した積層シート
として用いられるのが好ましい。
又熱可塑性樹脂シートの裏側には、熱収縮性シ
ートに仮着するために、火薬層を設ける部分を除
いて上述の粘着剤、接着剤等が積層されてもよ
い。
次に図面を参照して本発明を説明する。第１図
は本発明の被覆方法を示す断面図である。図中１
は被覆する鋼管である。２は熱収縮性シートであ
り、一面に感圧性粘着剤層３が積層されている。
４は固定用の熱可塑性樹脂シートであり、表側の
両端部付近に鋼板５１，５１′の一面に火薬層５
２，５２′が積層された積層シート５，５′の鋼板
５１，５１′が熱可塑性樹脂シート４に当接する
ように設けられており、裏側の積層シート５，
５′が設けられていない部分に感圧性粘着剤層６
が積層されている。
被覆するには、まず熱収縮性シート２を粘着剤
層３が内側になり、両端部が重り合うように鋼管
１に巻きつけ、重ね合せ部２１に粘着剤層６が内
側になり、積層シート５が熱収縮性シート２の一
端部付近に位置し、積層シート５′が熱収縮性シ
ート２の他端部付近に位置するように熱可塑性樹
脂シート４を重ね合せて仮着する。次に火薬層５
２，５２′に着火すると、火薬の燃焼熱によつて
積層シート５，５′直下の熱可塑性シート４の両
端部付近と、熱収縮性シート２の両端部付近とが
接着される。接着部分が冷却後、熱収縮性シート
２全体をバーナー等によつて加熱し、収縮せしめ
ることによつて被覆は完了する。
なお熱収縮性シート２は端部が隣接するように
被覆対象物に巻付けてもよい。
又熱収縮性シート２の接着をより確実にするた
めに第２図に示したようなはさみ治具を用いても
よい。図中５３及び５４は蝶番５５で接続された
硬質板状体であり、板状体５３の内側に積層シー
ト５の火薬層５２が当接するように積層されてい
る。このはさみ治具で熱収縮性シート２と熱可塑
性樹脂シート４を接着するには、熱収縮性シート
２と熱可塑性樹脂シート４と板状体５３及び５４
ではさみ、積層シート５を熱可塑性樹脂シート４
に押圧して、着火、燃焼せしめ、接着部が冷却後
取り除けばよい。
本発明の構成は上述の通りであり、火薬を燃焼
することにより、熱可塑性樹脂シートの両端部付
近と、被覆対象物に巻付けられた熱収縮性シート
の両端部付近とを接着するのであるから、熱可塑
性樹脂と熱収縮性シートは確実かつ強固に接着さ
れ、熱収縮性シートを収縮する際にずれたり、剥
離することがなく、又施工も重ね合せて着火する
だけであり、容易である。
次に本発明を実施例により説明する。
実施例 １ 厚さ1.2mmの架橋ポリエチレン製熱収縮性シー
トの一面にブチルゴムを主体とする粘着剤層を積
層し、第１図に示したように両端部が重り合うよ
うに鋼管に巻付けた。
次に表側両端部付近に、巾５mm、厚さ0.1mmの
鋼板に巾５mm、厚さ５mmの厚紙に無煙火薬をしみ
込ませた火薬層を積層した積層シートが積層さ
れ、裏側に、両端部付近５mm巾を残してブチルゴ
ムを主体とする粘着剤層が形成された、架橋ポリ
エチレンシートを第１図に示すように重ね合せ、
火薬層に着火し、燃焼直後に積層シートの上から
鋼鉄製ロールで圧着して、架橋ポリエチレンシー
トの両端部と上記熱収縮性シートの両端部付近を
熱融着した。
融着部分が冷却後、プロパンガスバーナーで熱
収縮性シートを加熱したところ融着部分がずれた
り、粘着剤がしみでることなく均一に収縮し、鋼
管を被覆することができた。又収縮後被覆部分を
水に浸漬しても被覆部分に水が浸透することはな
かつた。
実施例 ２ 厚さ1.2mmの架橋エチレン−酢酸ビニル共重合
体製熱収縮性シートの一面にエチレン−酢酸ビニ
ル共重合体を主体とするホツトメルト製接着剤層
を積層し、第１図に示したように、両端部が重り
合うように鋼管に巻きつけ、裏側に、両端部付近
５mm巾を残してエチレン−酢酸ビニル共重合体を
主体とするホツトメルト型接着剤層を積層した架
橋エチレン−酢酸ビニル共重合体シートを上記重
ね合せ部に重ね合せた。
次に第２図に示したように、巾５mm厚さ0.1mm
の鋼板に、巾５mm厚さ５mmの厚紙に無煙火薬をし
み込ませた火薬層を積層した積層シートの火薬層
を巾10mmの鉄製板状体に固定して作成したはさみ
治具で、上記共重合体シートの一端部と熱収縮性
シートの一端部を鋼板が共重合体シートに当接す
るようにはさみ、火薬層に着火し、燃焼して共重
合体シートの一端部と熱収縮性シートの一端部を
熱融着し、同様にして共重合体シートの他端部と
熱収縮性シートの他端部を熱融着した。
はさみ治具が冷却後、はさみ治具を取り除き、
プロパンガスバーナーで熱収縮性フイルムを加熱
したところ重ね合せ部がずれることなく均一に収
縮し、鋼管を被覆することができた。
【図面の簡単な説明】
第１図は本発明の被覆方法の一例を示す断面図
であり、第２図は本発明で使用するのに好適なは
さみ治具の一例を示す側面図である。 １……鋼管、２……熱収縮性シート、４……熱
可塑性樹脂シート、５……積層シート、５１……
鋼板、５２……火薬層。

Claims (1)

    【特許請求の範囲】
  1. １ 熱収縮性シートを、両端部が重り合うかもし
    くは隣接するように被覆対象物に巻付け、該重ね
    合せ部もしくは隣接部に固定用熱可塑性樹脂シー
    トを重ね合せ、該熱可塑性樹脂シートの表側の両
    端部付近に設けられた火薬層を燃焼することによ
    り、該熱可塑性樹脂シートの両端部付近と上記熱
    収縮性シートの両端部付近とを接着し、上記熱収
    縮性シートを加熱により収縮せしめることを特徴
    とする被覆方法。
JP58039503A 1983-03-09 1983-03-09 被覆方法 Granted JPS59164114A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58039503A JPS59164114A (ja) 1983-03-09 1983-03-09 被覆方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58039503A JPS59164114A (ja) 1983-03-09 1983-03-09 被覆方法

Publications (2)

Publication Number Publication Date
JPS59164114A JPS59164114A (ja) 1984-09-17
JPH0245978B2 true JPH0245978B2 (ja) 1990-10-12

Family

ID=12554845

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58039503A Granted JPS59164114A (ja) 1983-03-09 1983-03-09 被覆方法

Country Status (1)

Country Link
JP (1) JPS59164114A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109651670A (zh) * 2018-12-31 2019-04-19 安徽天康(集团)股份有限公司 一种云母带矿物绝缘波纹铜护套电缆

Also Published As

Publication number Publication date
JPS59164114A (ja) 1984-09-17

Similar Documents

Publication Publication Date Title
US4022248A (en) Pipe having insulating material and cover and having two strips of self-sealing adhesive material
US4424246A (en) Patch closure system
US4533419A (en) Patch closure system
EP0023788B1 (en) Arrangement and method for covering elongate substrates
CA2141527A1 (en) Butt strip tape for insulation application
US20040028862A1 (en) Fibrous closure for heat-shrinkable covers
US4188979A (en) Protective cover for a thermoresponsive tube
JPH0245978B2 (ja)
CA2171247A1 (en) Protective Sheet Material and Method for Making Same
JPH0245977B2 (ja)
WO1998013636A3 (en) Pressure sensitive self-seal lap for insulation
JPS6312995Y2 (ja)
JPS6139195Y2 (ja)
JPS59169812A (ja) 被覆方法
JPS6214476Y2 (ja)
JPS6319677Y2 (ja)
JPS5852968Y2 (ja) 熱収縮性シ−ト
JPS6310276Y2 (ja)
JPH038415Y2 (ja)
JPS5938257Y2 (ja) 熱収縮性チユ−ブ
JPH0410040Y2 (ja)
JPS5938263Y2 (ja) 金属表面保護材
JP2857315B2 (ja) 金属管接続部の防食被覆方法
JPS5852907Y2 (ja) 熱収縮性シ−ト
JPS602911Y2 (ja) 熱収縮性被覆材