JPS5938033A - 保温用配管カバ−の製造方法 - Google Patents

保温用配管カバ−の製造方法

Info

Publication number
JPS5938033A
JPS5938033A JP57149551A JP14955182A JPS5938033A JP S5938033 A JPS5938033 A JP S5938033A JP 57149551 A JP57149551 A JP 57149551A JP 14955182 A JP14955182 A JP 14955182A JP S5938033 A JPS5938033 A JP S5938033A
Authority
JP
Japan
Prior art keywords
plastic
foam
protective coating
pipe cover
heat
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
JP57149551A
Other languages
English (en)
Inventor
Toshimasa Osaki
大崎　利政
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 JP57149551A priority Critical patent/JPS5938033A/ja
Publication of JPS5938033A publication Critical patent/JPS5938033A/ja
Pending legal-status Critical Current

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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
    • B29C66/50—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
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B29C48/155—Partial coating thereof
    • 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
    • B29C65/028—Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one 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
    • B29C66/01—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
    • B29C66/70—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
    • B29C66/727—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 porous, e.g. foam
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0063—Cutting longitudinally
    • 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
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29L2005/00—Elements of slide fasteners
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Landscapes

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

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明は、保温用配管カバーの製造り法に関りる。
従来、保温用配管カバーとしく神々のものが提供され”
【おり、プラスデック発泡体を断熱材どして用いたもの
が軽量でしかも断熱効果が優れていることから広く採用
されている。
このような配管用カバ拠し゛（は、例えば長手方向に切
れ目を右する筒状プラスチック発泡体の外周に粘着剤層
を設けたフィルムを、その−側縁に重ね代が生ずるｊ：
うにＵＵｎ状／ラスチック発泡体の切れ目の近傍から全
周にわたって縦添えし勾配、管、カバーが知られている
。
この配管カバーは、既設された配管の外周に上記切れ目
を聞いて被着し、その後切れ目上に粘着層を有するフィ
ルムを貼着することにより配管−［に固定されＣいる。
しかしながら、このような配管カバーにおいＣは、経時
劣化ぐ粘着部の剥がれをきＩＣシ易く、また一旦被着し
た後これを除去したとぎは、再使用ｅきなくなるという
欠点を右し−〔い／Ｃ０さらにその製造方法につい（も
、筒状プラスチック発泡体を定尺に切断した後フィルム
を貼着りる工程と、一旦商状に成形した発泡体をその長
手方向に切開Ｊる■稈どが必要ぐあり、また光泡体と被
覆フィルムの長さを一致さＵるための端部擦り加工の必
要もあり、製造■稈が複雑になるという欠点があった。
さらに、プラスチックフィルムをラミネー］・シた板状
プラスチック発泡体の両側面を突合せ（筒状に成形し、
イの突合部イ１近の外表面に、突合部に跨っ（７１いに
嵌合りる係１に部材からなるツノシスノーを固着した配
管カバーｂ知られ−（いる。
この配管カバーにおいＣは、前述した配管カバー製品に
比ｌ＼（耐候性が良りｆｅ、かつ再利用がｉす能τ′あ
るという利点があるが、ぞの製造に際しくシラスチック
フィルム上へ７７スノーを固ｊ１りるのＧ、−７手数を
要するという難点があっｌｏ、：。
本発明はかかる事情に対処しくなされたーしの（゛、耐
候性に優れ、かつ再使用がｉｉＪ能く゛、しかも製造１
稈の簡略化された保温用配管カバーの製ｉ’ｂ　ｉｊ仏
を提供しようとりるものである。
すなわら本発明の配管カバーの製造り法は、筒状プラス
チック発泡体の外周上に、プラスデック保護被覆と、！
ｉいに１層合する２飼の係止部材をイｊＪ゛るプラスチ
ックフ１スナーを順に押出し一τ！ｌいに熱融着さゼ、
次いで前記プラスブックノ１スナーの係止部材間に沿っ
て筒状プラスチック発泡体の内周に達する切れ目を設置
ノたことを特徴としくいる。
本発明に用いられるプラスチック発泡体としＣは、例え
ばシラン変性ポリ１ヂレン等の架橋ポリエチレン、ポリ
１［１ピレン、ポリ塩化ビー−ル、ポリスチレンなどの
発泡体があり、保護被服に用いられる１ラスデツクとし
Ｃは、例えば、軟質ポリオレフィン系熱可塑性１ラスト
マー（以１・１１ゝ０ど略り−）や塩化ビニル−１ヂレ
ン−１ポリマー等がある。
本発明に用いる筒状プラスチックブを泡体は１層で用い
Ｃもよいし、シラン変性ポリ１１　’／シランような耐
熱性の優れた樹脂の発泡体どポリ」−チレン発泡体が積
層されたようなもの（゛あってｂＪ、い。
また、発泡が均一に行われたちのぐもよいし、インテグ
ラルスキン構造を右するもの？″′あっ（ｂよい。　な
お上記発泡体の発泡倍率や肉厚につい（は、特に限定さ
れるものではなく、使用条骨に合ｔ！て適宜決定すれば
にい。　　　　　　′　□また保護被覆土に形成される
ツノ・スノー」は、−りの係止部材が基部１こくびれを
もつ凸状からなり、他方の係Ｉｔ：　Ｆｉｌｌ　１４が
この凸条かに合りる凹溝を備λ１、、：部材から成る周
知の押圧嵌合型の７］・スノーが適しく−いる。
第１図は本発明の一実施例のＱＩｌｌ造方法を概略的に
示り°図Ｃある。
第１図におい（符号１は公知の１．Ｔ薫のｈ法ｒ製造さ
れメこ筒状シラスブーツタ発泡体、２．３は□各々１ラ
スナック保護被覆Ｊ３よびフッ・スＪ−を押出りための
押出機、４は押出機２．３に共通の押出ヘッド、５は冷
知装買、６．７　ＩＪぞれぞれキトタピラ式の引取機ぐ
ある。
なお、押出機２のホッパー２８には保護被覆形成用のプ
ラスブーツタベレットが供給され、押出（幾３のホッパ
ー３ａにはファスノー形成用のプラスチックベレツ１−
が供給される。また図示を省略したが押出ヘッド４内に
はダイスおＪ：びニップルにより構成される保護被覆形
成用樹脂通路と〕Ｉスナー形成用樹脂通路とが密接しＣ
配置され、押出機２により押出された樹脂により保護被
覆が形成された後その直上へファスナーが密接して形成
されるようになっている。
しかしパＣ１第１図に示すように、連続的に押出ヘッド
４へ送られてきた筒状プラスブーツク発泡体１は、押出
ヘッド４に通され、第２図に承りように筒状プラスデッ
ク発泡体１の外周へ押出１ｍ２の樹脂吐出りから押出さ
れたプラスデックににり保護液１９が形成され、続い−
Ｃ押出ｍ３の樹脂吐出口から押出されたプラスチックに
より、被覆９の外表面にノアスナ−１０が連続的に押出
被着される。
このＪ、うにし−（押出された円筒状の被覆体８′は、
冷Ｎ］装Ｈ５で冷却された後、引取機７Ｕ”引き取られ
、第３図に示り−ように図示を省略１ノＩＣ刃物により
ファスナー１０の係止部材ＩＱａ、１Ｑ１１間に筒状プ
ラスチック発泡体１の内周に達りる切れ目１２が入れら
れ、保温用配管カバー８が得られる。　プラスブック保
護被覆材および係止具の押出被着は、上述の如き同峙押
出しに限られるものではないが、製造■程の簡略イしσ
月ｊ１でりｆましい実施例Ｃある。
このようｌごしく木プを明により冑られた配管カバーは
、切れ目１２を開拡しくシ（保温１べき配管に装着しＩ
Ｃ後、係止部１０ａおよび１（月）をノアいに嵌合する
ことにＪ、り配管上に固定される。
以上説明しノこように本発明によれば、粘るノイルムを
バ用ｔ！す゛、従っＣ耐候ｖ１に優れ、使用時（−装着
あるいは細説も容易でしかＬ）内装着ｂｉｉｊ能な配管
カバーを−」−程ｅ製造りることが（゛ぎる。
また、ぞの配管カバーを固定りるツノ１スノー１．Ｌ押
出成形時に保護被覆」−に融着されるのＣ格別の１稈を
必要とＬＪ　ｆ、また融着強電す人さくＱす、特に実施
例に示したように同一の押出ヘッドにより押出した場合
には保護被覆とツノ・スノーとをブＣ全に一体化Ｊるこ
とかて゛きる。
【図面の簡単な説明】
第１図は本発明の一実施例を概略的【１．承り平面図、
第２図は上記実施例により製造されＩ、＝切れ目を入れ
る前の被覆体を承り断面図、第３３図は本発明により得
られた配管カバーを示り断面図である。 １・・・・・・・・・・・・筒状プラスチック発泡体２
．３・・・・・・・・・・・・押出機４・・・・・・・
・・・・・押出ヘッド８・・・・・・・・・保温用配管
カバー９・・・・・・・・・・・・プラスチック保護被
覆１０・・・・・・・・・・・・ファスナー１０ａ、１
０ｂ・・・係止部材 １２・・・・・・・・・・・・切れ目

Claims (2)

    【特許請求の範囲】
  1. （１）筒状プラスブック発泡体の外周−りに、プラスチ
    ック保護被覆と、勾−いに嵌合する２個の係止部材を有
    ＪるＩラスヂックノアス太−を順に押出しＣ〃いに熱融
    着さけ、次いＣ前記プラスデックファスナーの係１部材
    聞に長手方向に沿っ−（筒状プラスブーツタ発泡体の内
    周に達する切れ目を設けたことを特徴とりる保温用配管
    カバーの製造７ｉ仏。
  2. （２）プラスチック保護被覆とプラスヂックノ１スノー
    −どの押出しは、同一の押出しヘッドにＪ、り同時に行
    なわれることを特徴とする特許請求の範囲第′１項記載
    の保温用配管カバーの製造ｌｊ法。
JP57149551A 1982-08-27 1982-08-27 保温用配管カバ−の製造方法 Pending JPS5938033A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57149551A JPS5938033A (ja) 1982-08-27 1982-08-27 保温用配管カバ−の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57149551A JPS5938033A (ja) 1982-08-27 1982-08-27 保温用配管カバ−の製造方法

Publications (1)

Publication Number Publication Date
JPS5938033A true JPS5938033A (ja) 1984-03-01

Family

ID=15477628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57149551A Pending JPS5938033A (ja) 1982-08-27 1982-08-27 保温用配管カバ−の製造方法

Country Status (1)

Country Link
JP (1) JPS5938033A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621854A1 (fr) * 1987-10-20 1989-04-21 Symalit Lizenz Ag Procede de fabrication en continu d'un tube en matiere plastique a fermeture longitudinale et tubes fabriques par ce procede
WO1995015461A1 (en) * 1993-12-01 1995-06-08 Industrial Thermo Polymers Limited Pipe insulation with adhesive closure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621854A1 (fr) * 1987-10-20 1989-04-21 Symalit Lizenz Ag Procede de fabrication en continu d'un tube en matiere plastique a fermeture longitudinale et tubes fabriques par ce procede
WO1995015461A1 (en) * 1993-12-01 1995-06-08 Industrial Thermo Polymers Limited Pipe insulation with adhesive closure

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