JPH0245977B2 - - Google Patents

Info

Publication number
JPH0245977B2
JPH0245977B2 JP58039502A JP3950283A JPH0245977B2 JP H0245977 B2 JPH0245977 B2 JP H0245977B2 JP 58039502 A JP58039502 A JP 58039502A JP 3950283 A JP3950283 A JP 3950283A JP H0245977 B2 JPH0245977 B2 JP H0245977B2
Authority
JP
Japan
Prior art keywords
heat
sheet
shrinkable
gunpowder
layer
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
JP58039502A
Other languages
English (en)
Other versions
JPS59164113A (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 JP58039502A priority Critical patent/JPS59164113A/ja
Publication of JPS59164113A publication Critical patent/JPS59164113A/ja
Publication of JPH0245977B2 publication Critical patent/JPH0245977B2/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
    • 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

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で積層し、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、その要旨は一方の端部付近に火
薬層が形成された熱収縮性シートを、該火薬層が
該シート重ね合せ部の表になるように被覆対象物
に巻付けるか、もしくは熱収縮性シートを被覆対
象物に巻付け、重ね合せ部の表面に火薬層を形成
し、火薬層を燃焼することにより、重ね合せ部を
接着し、加熱収縮性シートを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
に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
込ませて火薬層を形成してもよい。火薬層は熱収
縮性シートの表面に予め形成されていてもよい
し、熱収縮性シートを被覆対象物に巻付け、重ね
合せ部の表面に形成されてもよい。
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の一例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がシート２の
一端部２１を残して積層されている。又４は鋼板
４１の一面に火薬層４２が積層された積層シート
である。
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、一端部２１が表側になるよう
に鋼管１に巻付け、重ね合せ部に積層シート４を
鋼板４１が熱収縮性シート２に当接するように重
ね合せ、火薬層４２に着火する。着火すると火薬
の燃焼熱によつて積層シート４直下の熱収縮性シ
ート２同志が接着されるので、冷却後積層シート
４を剥離し、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
が完了する。
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４３及び４４は蝶番４５で接続された
硬質板状体であり板状体４３の内側に積層シート
４の火薬層４２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を接着す
るには、熱収縮性シート２の重ね合せ部を板状体
４３及び４４ではさみ、積層シート４を熱収縮性
シート２に押圧して、着火、燃焼せしめ、接着部
分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
することによつて熱収縮性フイルムの重ね合せ部
を接着し、加熱収縮せしめるのであるから、重ね
合せ部は確実かつ強固に接着され加熱により収縮
する際にずれが生じ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良いので容易であ
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、一端部付近を巾５mm残してブチルゴ
ムを主体とする粘着剤層を積層し、第１図に示し
たように鋼管に巻付けた。次に巾５mm、厚さ0.1
mmの鋼板の一面に厚紙に無煙火薬をしみ込ませた
火薬層が形成された積層シートを、第１図に示し
たように熱収縮性シートの重ね合せ部に重ね合
せ、火薬層に着火し、燃焼直後に積層シート上か
ら鋼鉄製ロールで圧着した。
重ね合せ部が冷却後、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。
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、一端部付近を巾５
mm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、第１図に
示したように鋼管に巻付けた。次に実施例１で使
用した積層シート体を巾10mmの鉄板に固定し第２
図に示したようなはさみ治具を作成し、該はさみ
治具で鋼板が重ね合せ部の表側に当接するように
はさみ、火薬層に着火し燃焼して重ね合せ部を接
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シートを加熱し
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、３……感
圧性粘着層、４……積層シート、４１……鋼板、
４２……火薬層。

Claims (1)

    【特許請求の範囲】
  1. １ 一方の端部付近に火薬層が形成された熱収縮
    性シートを、該火薬層が該シート重ね合せ部の表
    になるように被覆対象物に巻付けるか、もしくは
    熱収縮性シートを被覆対象物に巻付け、重ね合せ
    部の表面に火薬層を形成し、火薬層を燃焼するこ
    とにより重ね合せ部を接着し、加熱して熱収縮性
    シートを収縮せしめることを特徴とする被覆方
    法。
JP58039502A 1983-03-09 1983-03-09 被覆方法 Granted JPS59164113A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58039502A JPS59164113A (ja) 1983-03-09 1983-03-09 被覆方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58039502A JPS59164113A (ja) 1983-03-09 1983-03-09 被覆方法

Publications (2)

Publication Number Publication Date
JPS59164113A JPS59164113A (ja) 1984-09-17
JPH0245977B2 true JPH0245977B2 (ja) 1990-10-12

Family

ID=12554817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58039502A Granted JPS59164113A (ja) 1983-03-09 1983-03-09 被覆方法

Country Status (1)

Country Link
JP (1) JPS59164113A (ja)

Also Published As

Publication number Publication date
JPS59164113A (ja) 1984-09-17

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