SK285891B6 - Method for the continuous production of an insulating hose - Google Patents

Method for the continuous production of an insulating hose Download PDF

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Publication number
SK285891B6
SK285891B6 SK1673-2001A SK16732001A SK285891B6 SK 285891 B6 SK285891 B6 SK 285891B6 SK 16732001 A SK16732001 A SK 16732001A SK 285891 B6 SK285891 B6 SK 285891B6
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SK
Slovakia
Prior art keywords
hose
sliding material
sliding
shape
layer
Prior art date
Application number
SK1673-2001A
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Slovak (sk)
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SK16732001A3 (en
Inventor
J�rg P. Weibel
Original Assignee
Armacell Enterprise Gmbh
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Publication date
Application filed by Armacell Enterprise Gmbh filed Critical Armacell Enterprise Gmbh
Publication of SK16732001A3 publication Critical patent/SK16732001A3/en
Publication of SK285891B6 publication Critical patent/SK285891B6/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/52—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using external forming surfaces, e.g. sleeves
    • 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
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/30—Lining or sheathing of internal surfaces 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
    • 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
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • 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
    • 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
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • 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
    • B29C66/727—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
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Insulation (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Insulating Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

By process for the continuous manufacture of an insulating tube having at least three layers, is extruded a tube (11) of thermally insulating material. The tube (11) is cut to form two plane-parallel, substantially axial cut surfaces (12) and the cut tube (11) is spread out substantially to form a slab (13). A sliding material (14) is adhesively applied to the inside of the tube. The tube that has been spread out to form a slab and has the sliding material applied on the inside is returned to the tubular shape with cut surfaces (12) resting against each other. The cut surfaces (12) of the tube are joined to each other and a seamless covering layer (16) is applied to the outside of the tube.

Description

Oblasť technikyTechnical field

Vynález sa týka spôsobu plynulej výroby izolačnej hadice, ktorá zahrnuje aspoň tri vrstvy.The invention relates to a method for the continuous production of an insulating hose comprising at least three layers.

Doterajší stav technikyBACKGROUND OF THE INVENTION

Zo spisu DE 37 14 917 Al je známe na účel výroby viacvrstvového rúrkovitého izolačného materiálu privádzať jednotlivé pruhy ku tvarovacej stanici, a v nej ich uvádzať do valcovitého tvaru a následne ich na seba nadväzujúcimi, pozdĺž plášťovej línie prebiehajúcimi čelnými plochami spolu spájať lepením alebo zváraním. To vyžaduje exaktné prirezávanie bočných okrajov, čo spôsobuje odpad. Okrem toho sa zváranie plôch rozprestierajúcich sa v pozdĺžnom smere izolačnej hadice ukazuje ako ťažké, Takto zhotovená hadica má sklon k tomu, že sa rúrkové oplášťovanie tvaruje oválne, čím nie je zaistený rovnomerný izolačný kontakt s uzavretou rúrkou.It is known from DE 37 14 917 A1 for the production of a multilayer tubular insulating material to feed the individual strips to the forming station and to make them in a cylindrical shape and then to connect them to each other along the casing line by gluing or welding together. This requires exact cutting of the side edges, causing waste. In addition, welding of areas extending in the longitudinal direction of the insulating hose proves difficult. The hose thus formed tends to be oval shaped by the tubing, thus ensuring a uniform insulating contact with the closed tube.

Zo spisu WO 98/56240 je známe v plynulom procese extrudovať termoplastickú penu s hustotou 10 až 500 kg/m3 a s 5 až 95 hmotnostnými percentami kovom katalyzovaného polyetylénu do tvaru hadice, a túto hadicu v ďalšom extrúznom procese na jej vonkajšej ploche obaľovať ochrannou vrstvou s hustotou 100 až 1200 kg/m3. Pretože súčiniteľ trenia je na vnútornej strane hadice veľmi veľký, je jej nanášanie na rúrku, určenú na izoláciu, spojené s ťažkosťami.It is known from WO 98/56240 to extrude, in a continuous process, a thermoplastic foam having a density of 10 to 500 kg / m 3 and 5 to 95% by weight of metal catalyzed polyethylene into a hose shape, and to wrap the hose in a further extrusion process on its outer surface. with a density of 100 to 1200 kg / m 3 . Since the coefficient of friction is very large on the inside of the hose, its application to the pipe to be insulated is associated with difficulties.

Z patentového spisu EP-A-0 279 024 je známy spôsob výroby izolačných rúr, pri ktorom sa zvlnená plastová rúra plynulo ťahá zo zásob, v pozdĺžnom smere sa rozreže a položí sa rovnako plynulo na vnútornú rúru, pričom medzikružie medzi vonkajšou a vnútornou rúrou sa spevní polyuretánovou penou a na záver sa pozdĺžna drážka vonkajšej zvlnenej rúry uzavrie zlepením alebo zváraním.EP-A-0 279 024 discloses a process for the production of insulating pipes, in which the corrugated plastic pipe is pulled continuously from the stock, is cut in the longitudinal direction and laid equally smoothly on the inner pipe, the annular between the outer and inner pipes it is reinforced with polyurethane foam and finally the longitudinal groove of the outer corrugated pipe is closed by gluing or welding.

Z patentového spisu DE-A 1-3 3 38 071 je známy spôsob výroby ohybnej teplovodnej rúry, pri ktorom sa ťahá zo zásobnej cievky prefabrikovaná rúra, pozdĺžne sa rozreže a ohne. Z ďalšej zásobnej cievky sa ťahá zvlnená vnútorná kovová rúra a pomocou rozpierky sa fixuje do vonkajšej rúry na určené miesto, potom sa vonkajšia a vnútorná rúra spolu ohnú a pozdĺžna drážka sa zvarí, pričom do medzikružia medzi vonkajšou a vnútornou rúrou sa nakvapká samopeniaca plastová hmota.DE-A 1-3 3 38 071 discloses a method for producing a flexible heat pipe, in which a prefabricated pipe is drawn from a supply coil, cut longitudinally and bent. A corrugated inner metal tube is drawn from a further supply coil and fixed by a spacer to the outer tube at a predetermined location, then the outer and inner tubes are bent together and the longitudinal groove is welded, while a self-foaming plastic mass is dripped into the annular between the outer and inner tubes.

Spis EP 0 896 184 A2 opisuje izolačné oplášťovanie pozostávajúce z vonkajšej ochrannej vrstvy, z vnútornej strany umiestnenej klznej vrstvy a zo strednej vrstvy z izolujúceho materiálu. Jednotlivé vrstvy sú spolu spojené, pričom vonkajšia vrstva pozostáva zo stabilného materiálu odolného proti roztrhnutiu. Stredná vrstva má protipožiarne vlastnosti, tepelnoizolačné vlastnosti a má schopnosť tlmiť zvuk. Oplášťovanie má pozdĺžnu štrbinu na elastické nanesenie na rúrku, ktorá sa potom uzavrie pomocou lepiacej pásky alebo iných upevňovacích prostriedkov. Pri takých oplášťovaniach môže ľahko dochádzať ku kondenzácii vodnej pary, pretože lepiaca páska môže za určitých okolností ľahko odpadnúť, alebo môžu na základe vytvárania zriasení vznikať priechodné dutiny, ktoré vytvárajú kanáliky na vodnú paru.EP 0 896 184 A2 describes an insulating sheath consisting of an outer protective layer, an inner sliding layer placed on the inside and a central layer of insulating material. The individual layers are joined together, the outer layer consisting of a stable tear-resistant material. The middle layer has fire-retardant, thermal insulating and sound-dampening properties. The sheathing has an elongate slot for elastic application to the pipe, which is then closed by means of an adhesive tape or other fastening means. Such sheathing can easily cause condensation of water vapor, since the adhesive tape can easily fall off under certain circumstances, or through the formation of pleats, passage cavities can be formed which form channels for water vapor.

Úloha vynálezu preto spočíva v navrhnutí spôsobu, ktorým sa dá jednoducho zhotovovať izolačná hadica, zahrnujúca aspoň tri vrstvy.SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method by which an insulating hose comprising at least three layers can be easily manufactured.

Podstata vynálezuSUMMARY OF THE INVENTION

Táto úloha sa podľa vynálezu rieši spôsobom plynulej výroby izolačnej hadice, zahrnujúcej aspoň tri vrstvy, s vonkajšou ochrannou vrstvou, s klznou vrstvou umiestnenou z vnútornej strany, a so strednou vrstvou z izolujúceho materiálu, podľa vynálezu, ktorého podstata spočíva v tom, že sa z tepelne izolujúcej penovej hmoty extruduje hadica, ktorá sa rozreže s vytvorením dvoch planparalelných, v podstate axiálnych rezných plôch. Rozrezaná hadica sa rozprestrie v podstate do tvaru dosky a na vnútornú stranu takto do tvaru dosky rozprestretej hadice sa nanesie klzný materiál. Hadica rozprestretá do tvaru dosky sa spolu s klzným materiálom naneseným z vnútornej strany uvedie naspäť do tvaru hadice s reznými plochami ležiacimi pri sebe a rezné plochy hadice sa spolu spoja. Na vonkajšiu stranu hadice sa nanesie bezšvová vrstva oplášťovania.According to the invention, this object is achieved by a process for the continuous production of an insulating hose comprising at least three layers, with an outer protective layer, a sliding layer disposed on the inside, and a middle layer of insulating material according to the invention. a thermally insulating foam extrudes a hose which is cut to form two planar, substantially axial cutting surfaces. The slit hose extends substantially in the form of a plate and a sliding material is applied to the inner side of the plate of the spread hose. The hose, which is spread in the form of a plate, is returned to the shape of the hose together with the sliding material applied from the inside with the cutting surfaces lying together and the cutting surfaces of the hose are joined together. A seamless sheathing layer is applied to the outside of the hose.

Spôsob podľa vynálezu sa dá v naznačených krokoch hospodárne uskutočňovať na rovnakom mieste a v rovnaký čas. Vzniká guľatý produkt, ktorý je možné ľahko nasadiť na rúrku, a jeho vonkajšia plocha nemá žiadne rezné hrany a pritom má vysokú odolnosť proti roztrhnutiu. Na základe výrobných krokov sa rezné plochy predpokladaného spojenia proti sebe exaktne prispôsobia, takže je možné dosiahnuť optimálne spojenie pomocou zvarenia a zlepenia, a na spojovacích miestach nemôže teda dôjsť k žiadnej zvýšenej difúzii vodnej pary. Spôsob sa dá bez problému prispôsobiť rôznym hrúbkam, je teda flexibilný a nevzniká žiadny odpad, ktorý by musel byť recyklovaný.The process according to the invention can be carried out economically at the same place and at the same time in the steps outlined. This results in a round product which is easy to fit onto the pipe and has no cutting edges on its outer surface, yet has a high tear resistance. As a result of the manufacturing steps, the cutting surfaces of the presumed connection are precisely matched to one another so that an optimum connection can be achieved by welding and gluing, and thus no increased water vapor diffusion can occur at the joining points. The process can easily be adapted to different thicknesses, so it is flexible and no waste is produced which would have to be recycled.

Klzný materiál môže byť z vnútornej strany nanášaný na vnútornú plochu pomocou tepelného spojovania plochy hadice s klznou fóliou, a to pomocou lepivého spojenia s takouto klznou fóliou alebo koextrúziou. Bezšvová vrstva oplášťovania sa môže na vonkajšiu stranu hadice natiahnuť alebo naextrudovať.The sliding material may be applied from the inside to the inner surface by thermally bonding the surface of the hose to the sliding foil by adhesive bonding to such sliding foil or coextrusion. The seamless sheathing layer can be stretched or extruded on the outside of the hose.

Klzný materiál môže mať s cieľom zosilniť vlákna, ktoré sú obsiahnuté v klznej fólii, alebo sú na naextrudovanie do klzného materiálu vmiešané. Ako klzný materiál sa môže tiež použiť penová fólia, ktorá má iné vlastnosti než penová hmota, s ktorou je spojená. Tak sa môže napríklad ako penová fólia použiť na zvýšenie tepelnej stability polypropylénová pena. Penová fólia môže byť zložená aj z viac vrstiev, pričom vlastnosti jednotlivých vrstiev môžu byť rôzne. Napríklad jedna vrstva môže mať protipožiarne účinky. Na redukciu tepelnej vodivosti sa môže použiť aj klzný materiál odrážajúci infračervené žiarenie.The glidant may have fibers which are contained in the glidant film or are mixed to be extruded into the glidant to reinforce the fibers. A foam sheet having properties other than the foam to which it is attached may also be used as a glidant. Thus, for example, a polypropylene foam can be used as a foam sheet to increase the thermal stability. The foam sheet may also be composed of multiple layers, the properties of the individual layers may be different. For example, one layer may have fire-fighting effects. Sliding material reflecting infrared radiation can also be used to reduce thermal conductivity.

Prehľad obrázkov na výkreseOverview of the figures in the drawing

Vynález je bližšie opísaný a objasnený na príklade jeho uskutočnenia podľa pripojeného výkresu, ktorý na obr. schematicky znázorňuje zariadenie na výrobu trojvrstvovej izolačnej hadice.The invention is described and explained in more detail with reference to the accompanying drawing, in which: FIG. schematically shows an apparatus for producing a three-layer insulating hose.

Príklady uskutočnenia vynálezuDETAILED DESCRIPTION OF THE INVENTION

Z extrudéra 21 sa z izolačnej peny extruduje hadica 11 a pomocou rezného mechanizmu 22 sa pri jej plynulom pokračujúcom pohybe rozrezáva pozdĺž radiálnej roviny s vytvorením rezných plôch 12. Rozrezaná hadica 11 sa pomocou rúrky 23 rozprestrie do tvaru dosky 13, na ktorej vnútornú stranu, vychádzajúc od mechanizmu 24, sa pomocou valčeka 30 nanáša klzný materiál 14 vo forme vrstvy, ktorá sa na základe tepla, privedeného už predtým z mechanizmu 25 na prívod tepla, trvalé spojí s izolačnou penou. DoskaA hose 11 is extruded from the insulating foam from the insulating foam and, by means of the cutting mechanism 22, is cut along its radial plane to form cutting surfaces 12 by means of the cutting mechanism 22. The cut hose 11 extends by means of a tube 23 into a plate 13 on which from the mechanism 24, a sliding material 14 is applied by means of a roller 30 in the form of a layer which, on the basis of the heat previously supplied from the heat supply mechanism 25, is permanently connected to the insulating foam. board

13, vybavená na svojej vnútornej ploche klzným materiálom 14 vo forme vrstvy, sa potom pomocou navádzacieho mechanizmu 26 navádza naspäť do tvaru hadice, pričom sa súčasne na rezné plochy 12 pomocou mechanizmu 27 na nanášanie adhézneho prostriedku nanáša adhézny prostriedok. Na základe tohto adhézneho prostriedku sa hadica pod prítlačným mechanizmom 28 tesne pozdĺž rezných plôch 12 opäť spojí do hadice. Na túto hadicu sa potom pomocou extrudéra 29 trvalé naextruduje bezšvové oplášťovanie 16, čim je v plynulom procese zhotovená trojvrstvová izolačná hadica.13, provided on its inner surface with a sliding material 14 in the form of a layer, is then returned to the shape of a hose by means of the guiding mechanism 26, while at the same time the adhesive is applied to the cutting surfaces 12 by the adhesive application mechanism. Due to this adhesive means, the hose is re-coupled into the hose under the pressing mechanism 28 just along the cutting surfaces 12. A seamless sheathing 16 is then continuously extruded onto the hose by means of an extruder 29, thereby producing a three-layer insulating hose in a continuous process.

Adhézne spojenie medzi klzným materiálom 14 vo forme vrstvy a izolačnou penou môže byť tiež uskutočnené pomocou lepidla. Rezné plochy 12 sa môžu do hadice spojiť tiež tak, že ich hrany sa pomocou horúceho vzduchu natavia, a potom sa pomocou prítlačného mechanizmu 28 spoja.The adhesive connection between the sliding material 14 in the form of a layer and the insulating foam can also be made by means of an adhesive. The cutting surfaces 12 can also be joined to the hose so that their edges are melted by hot air and then joined by the pressing mechanism 28.

Claims (10)

PATENTOVÉ NÁROKYPATENT CLAIMS 1. Spôsob plynulej výroby izolačnej hadice, zahrnujúcej aspoň tri vrstvy, s vonkajšou ochrannou vrstvou, s klznou vrstvou umiestnenou z vnútornej strany a so strednou vrstvou z izolujúceho materiálu, vyznačujúci sa t ý m , žc sa z tepelne izolujúcej penovej hmoty extruduje hadica (11), hadica (11) sa rozreže s vytvorením dvoch planparalelných, v podstate axiálnych rezných plôch (12), rozrezaná hadica (11) sa rozprestrie v podstate do tvaru dosky (13), na vnútornú stranu do tvaru dosky (13) rozprestretej hadice (11) sa nanesie klzný materiál (14), do tvaru dosky (13) rozprestrela hadica (11) sa spolu s klzným materiálom (14) naneseným z vnútornej strany uvedie späť do tvaru hadice (11) s reznými plochami (12) ležiacimi pri sebe, rezné plochy (12) hadice (11) sa spolu spoja, a na vonkajšiu stranu hadice (11) sa nanesie bezšvová vrstva oplášťovania (16).A method of continuously manufacturing an insulating hose comprising at least three layers, with an outer protective layer, a sliding layer disposed on the inside and a middle layer of insulating material, characterized in that the hose (11) is extruded from the thermally insulating foam. ), the hose (11) is cut to form two planar, substantially axial cutting surfaces (12), the slit hose (11) extends substantially in the shape of a plate (13), on the inside into the shape of a plate (13) of the spread hose ( 11) the sliding material (14) is applied, the hose (11) has been distributed in the shape of the plate (13) together with the sliding material (14) applied from the inside back into the shape of the hose (11) with the cutting surfaces (12) lying together , the cutting surfaces (12) of the hose (11) are joined together, and a seamless sheathing layer (16) is applied to the outside of the hose (11). 2. Spôsob podľa nároku 1, vyznačujúci sa t ý m , že sa na vnútornú stranu do tvaru dosky (13) rozprestretej hadice (11) nanesie klzný materiál (14) vo forme klznej fólie a teplom alebo pomocou lepidla sa s ňou trvalé spojí.Method according to claim 1, characterized in that a sliding material (14) in the form of a sliding foil is applied to the inner side in the shape of a plate (13) of the spread hose (11) and is permanently bonded thereto by heat or adhesive. 3. Spôsob podľa nároku 2, vyznačujúci sa t ý m , že ako klzný materiál (14) sa použije vláknami zosilnená klzná fólia.Method according to claim 2, characterized in that a fiber-reinforced sliding foil is used as the sliding material (14). 4. Spôsob podľa nároku l,v y značujúci sa t ý m , že sa na vnútornú stranu do tvaru dosky (13) rozprestretej hadice (11) naextruduje klzný materiál (14) ako vrstva.Method according to claim 1, characterized in that the sliding material (14) is extruded as a layer on the inner side in the shape of a plate (13) of the spread hose (11). 5. Spôsob podľa nároku 4, vyznačujúci sa t ý m , že sa ku klznému materiálu (14) primiešajú zosilňujúce vlákna.Method according to claim 4, characterized in that reinforcing fibers are admixed to the sliding material (14). 6. Spôsob podľa ktoréhokoľvek z predchádzajúcich nárokov, vyznačujúci sa tým, že sa planparalelné rezné plochy (12) spolu spoja zlepením alebo zvarením.Method according to any one of the preceding claims, characterized in that the planar parallel cutting surfaces (12) are joined together by gluing or welding. 7. Spôsob podľa ktoréhokoľvek z predchádzajúcich nárokov, vyznačujúci sa t ý m, že vrstva oplášťovania (16) sa na vonkajšiu stranu hadice (11) natiahne ako jeden diel, alebo sa naextruduje.Method according to any one of the preceding claims, characterized in that the sheathing layer (16) is stretched as one piece to the outside of the hose (11) or extruded. 8. Spôsob podľa ktoréhokoľvek z predchádzajúcich nárokov, vyznačujúci sa tým, že ako klzný materiál (14) sa použije penová fólia, ktorej vlastnosti sa líšia od vlastností nadväzujúcej penovej hmoty.Method according to any one of the preceding claims, characterized in that a foamed foil is used as the sliding material (14), the properties of which differ from those of the subsequent foamed material. 9. Spôsob podľa nároku 8, vyznačujúci sa t ý m , že ako penová fólia sa použije penová fólia s viacerými vrstvami, ktoré majú rozdielne vlastnosti.Method according to claim 8, characterized in that a multilayer foam sheet having different properties is used as the foam sheet. 10. Spôsob podľa niektorého z predchádzajúcich nárokov, vyznačujúci sa tým, že sa použije klzný materiál (14) s vlastnosťami na odrážanie infračerveného žiarenia.Method according to one of the preceding claims, characterized in that a sliding material (14) having infrared reflecting properties is used.
SK1673-2001A 2000-11-21 2001-11-16 Method for the continuous production of an insulating hose SK285891B6 (en)

Applications Claiming Priority (1)

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EP00125497A EP1208962B1 (en) 2000-11-21 2000-11-21 Method for the continuous production of an insulating pipe comprising at least three layers

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SK16732001A3 SK16732001A3 (en) 2002-06-04
SK285891B6 true SK285891B6 (en) 2007-10-04

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AT (1) ATE259291T1 (en)
CZ (1) CZ297749B6 (en)
DE (1) DE50005269D1 (en)
ES (1) ES2215548T3 (en)
HR (1) HRP20010783B1 (en)
HU (1) HU225318B1 (en)
NO (1) NO20015230L (en)
PL (1) PL199068B1 (en)
SI (1) SI1208962T1 (en)
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EP1396675A1 (en) * 2002-09-05 2004-03-10 Tosetz Co. Ltd. Fire protection device
DE10243358A1 (en) * 2002-09-18 2004-04-01 E. Missel Gmbh & Co. Insulation material for pipes
DE60314465T2 (en) * 2003-07-18 2008-02-21 Armacell Enterprise Gmbh POLYMERSHOE TUBES FOR PIPE INSULATION AND METHOD FOR CONTINUOUS MANUFACTURE OF SUCH A TUBE
DE102009051071A1 (en) * 2009-10-21 2011-04-28 Linhardt Gmbh & Co. Kg Method for producing packaging, in particular tubes and packaging
EP2998635A1 (en) * 2014-09-19 2016-03-23 HakaGerodur AG Plastic pipe

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DE3338071A1 (en) * 1983-10-20 1985-05-09 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Process for the continuous production of flexible, thermally insulated pipelines
DE3704380A1 (en) * 1987-02-12 1988-08-25 Kabelmetal Electro Gmbh METHOD FOR THE CONTINUOUS PRODUCTION OF A FLEXIBLE HEAT-INSULATED PIPE
DE3714917A1 (en) 1987-05-05 1988-11-24 Missel Gmbh & Co E Tubular multilayer insulating material
US5904970A (en) 1997-06-13 1999-05-18 Nomaco, Inc. Integrally bonded, multilayer foamed product
DE19730153A1 (en) 1997-07-14 1999-01-21 Missel Gmbh & Co E Insulation sleeve for metallic and other non-combustible pipes and ducts

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SI1208962T1 (en) 2004-06-30
DE50005269D1 (en) 2004-03-18
EP1208962A1 (en) 2002-05-29
ES2215548T3 (en) 2004-10-16
SK16732001A3 (en) 2002-06-04
PL350752A1 (en) 2002-06-03
HRP20010783B1 (en) 2009-03-31
HU0104983D0 (en) 2002-01-28
HUP0104983A2 (en) 2002-07-29
NO20015230D0 (en) 2001-10-26
CZ297749B6 (en) 2007-03-21
EP1208962B1 (en) 2004-02-11
HU225318B1 (en) 2006-09-28
ATE259291T1 (en) 2004-02-15
NO20015230L (en) 2002-05-22
CZ20014111A3 (en) 2002-07-17
HRP20010783A2 (en) 2003-02-28
PL199068B1 (en) 2008-08-29

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Effective date: 20131116