CH423209A - Plastic body - Google Patents

Plastic body

Info

Publication number
CH423209A
CH423209A CH1322263A CH1322263A CH423209A CH 423209 A CH423209 A CH 423209A CH 1322263 A CH1322263 A CH 1322263A CH 1322263 A CH1322263 A CH 1322263A CH 423209 A CH423209 A CH 423209A
Authority
CH
Switzerland
Prior art keywords
plastic body
heating
body according
profile
resistance wires
Prior art date
Application number
CH1322263A
Other languages
German (de)
Inventor
Michael Dipl Ing Wienand
Original Assignee
Dynamit Nobel Ag
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 Dynamit Nobel Ag filed Critical Dynamit Nobel Ag
Publication of CH423209A publication Critical patent/CH423209A/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/58—Heating hoses; Heating collars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • 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
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • 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
    • B29C61/0608—Making preforms having internal stresses, e.g. plastic memory characterised by the configuration or structure of the preforms
    • B29C61/0625—Preforms comprising incorporated or associated heating means
    • 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
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—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
    • B29C65/5064—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 of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5071—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 of particular form, e.g. being C-shaped, T-shaped and being composed by one single element
    • 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
    • B29C65/5064—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 of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5085—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 of particular form, e.g. being C-shaped, T-shaped and comprising grooves, e.g. being E-shaped, H-shaped
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/601—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/601—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined
    • B29C65/603—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined the rivets being pushed in blind holes
    • B29C65/604—Riveting or staking using extra riveting elements, i.e. the rivets being non-integral with the parts to be joined the rivets being pushed in blind holes in both parts
    • 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
    • B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
    • B29C65/68—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using auxiliary shrinkable elements
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/01—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
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52297—Joining tubular articles involving the use of a socket said socket comprising slip-off prevention means
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04—Rivets; Spigots or the like fastened by riveting
    • F16B19/06—Solid rivets made in one piece
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/0004—Joining sheets, plates or panels in abutting relationship
    • F16B5/0056—Joining sheets, plates or panels in abutting relationship by moving the sheets, plates or panels or the interlocking key perpendicular to the main plane
    • F16B5/0064—Joining sheets, plates or panels in abutting relationship by moving the sheets, plates or panels or the interlocking key perpendicular to the main plane and using C-shaped clamps
    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/004—Shrunk pipe-joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
    • F16L47/22—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics using shrink-down 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
    • B29C65/48—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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Resistance Heating (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

       

  Kunststoffkörper    Es ist     .bekannt,    in     Muffen        Widerstandsdrähte    mit  einzuspritzen, die     @später    dazu     benutzt    werden,     die     Muffe     ielektrisch    so weit     zu        erhitzen,    dass eine     Ver-          schweissung,    z. B. der Muffe mit einem Rohr, erfolgt.  Auch bei     Fussbodenplatten    hat man zum Verschwei  ssen ähnliche Vorschläge gemacht.

   Es     ist        jauch        be-          kannt,        @dass        @es    bei vielen     Kunststoffen        möglich    ist,       Spannungen        einzufrieren,    !die .später durch     Wärme-          zufuhr    ausgelöst werden können und dann zu     einer     Schrumpfung oder Verlängerung     fuhren.        Prinzipiell     ist es gleich,

   wie man zur     Auslösung        der        Spannungen     die Wärme zuführt. Die Erwärmung von aussen  hat den Nachteil, dass man nicht immer die Möglich  keit hat, an alle Stellen heranzukommen, ausserdem  könnten Stellen erwärmt werden, die unerwünscht  sind.  



  Diese Nachteile     vermeidet    die     Erfindung,    indem       idie        Heizmittel    oder     Heizkanäle    am und/oder im       Kunststoffkörperangebracht        sind,    die     eine    Auslösung  seiner     eingefrorenen        Spannung    .ermöglichen. Es kann  sich dabei um Kanäle handeln, durch     die    z. B.

   Heiss  luft oder Wasser     geleitet    wird     und/oder    u     m        eingebet-          tete        elektrische        Heizleiter,    auch können die     Teile    so  weit gefüllt sein,     @dass        ,sie    selbst :als Heizleiter wirken.  



  In der     Abb.    1     ist    ein Zuganker 1     @dargestellt,    in  ,dem     drei        Heizleiter    2 quer zur     Zugrichtung    eingebet  tet sind.

   Es ist     nun        möglich,        mittels    der     Heizleiter    2  oder ,aber .auch     in    einem     Heilzofen,das        Profil    vorzu  wärmen, ,

  das     eigentliche    Zugelement des     Zugankers    1  vorzustrecken und     diesen    Zustand     durch    Abschrecken       einzufrieren.        Dann        wind        ider        Zuganker    1     in        die        Nuten     3 eingeschoben und durch Aufheizen der     Heizleiter    2  die Spannung im Zuganker 1 wieder     gelöst,

          wobei     gemäss     Abb.    1 a die     Teile    4a     fest        ,gegeneinander    gezo  gen werden. Da hierbei die Zugspannungen quer     zurr     Heizleiter liegen, ist es     möglich,    mit einfachen glatten         Drähten    zu     ,arbeiten.        Anders        verhält    es sich beidem  in     der        A.bb.    2 dargestellten Beispiel, wo     Zugspannung     und     Heizleiter    in gleicher Richtung verlaufen.

   Hierbei       wird        vorteilhaft    mit     einem        Drahtwendel    oder     einem          zickzackförmig        ,geknickten    Heizleiter     igearbeitet,    da  mit der     Heizleiter    der Spannung nachgehen kann.

      Gemäss     Abb.    2 werden     Rohre    5 und 6, die je       einen        Kragen    7 und 8     .beisitzen,        Jurch        ein        U-Profil    9       zusammengehalten.        In    (dem     U-Profil    9     sind        Heizleiber     10 eingebettet, mit denen das     ,Profil    9     erwärmt        wer-          ,den    kann.

   Die     Heizleiber    10     werden    kurz vor der       Ringschweissstelle    11     (als        Anschlussenden    12 nach  aussengeführt. Der     U-Profil-Ring    13     wird    erwärmt       und.        ,aufgeweitet,    so dass der     Innendurchmesser    grö  sser ist     ,als        oder        Aussendurchmesser    des     Kragens,

          und     dann     abgeschreckt.    Damit ist (der Ring     einbaufertig.     An     der        Baustelle    wird oder     ,Ring    über die     Rohre        .ge-          ischoben    und, sobald er über den Kragen 7 und 8  liegt,     idurch    Erhitzen über     die        Anschlussenden        12,auf-          geschrumpft.    Die     Rohre    können in     :

  einem    Kanal lie  gen oder     ran        sonst        schlecht        zugänglicher        Stelle,        ein          Aufschrumpften    ist     immer    möglich.     Gleichzeitig    ist es  auch     möglich,    die Verbindung später wieder zu lösen,       indem    der Ring wieder     aufgeheizt    wird.

   Inder     Abb.    3       jist        ein        Profil    14     dargestellt,        welches    durch eine     einge-          frorene        Biegespannung        zum        Verbinden    oder     Teile    15  und 16 durch Auslösen der Spannung benutzt wird.  



       Abb.    4 stellt ein     Beispiel    dar, bei dem eine Druck  spannung ausgelöst     wird,    die zum     Verbinden    von  zwei Platten 17     @an    einer     unzugänglichen    Stelle ver  wendet wird,     ähnlich    den bekannten     Sprengnieten.     Der z.

   B. im     Spritzguss    hergestellte fertige Niet 18  wird an dem Ende, wo die     Heizwendiel    sitzt,     .als    Zy  linder 19 unter Druckspannung     angeformt.    Durch       Erhitzen    über die     Anschlussenden    20     bildet    sich der      Kopf zurück und     kann        ;zum        Verbinden        zweiter        Teile          benutzt    werden.



  Plastic body It is known to inject resistance wires into sleeves which are later used to electrically heat the sleeve to such an extent that a weld, e.g. B. the sleeve with a pipe. Similar proposals for welding have also been made for floor panels.

   It is well known that with many plastics it is possible to freeze tensions! Which can later be triggered by the supply of heat and then lead to shrinkage or elongation. In principle it is the same

   how to add heat to release the tension. The heating from outside has the disadvantage that it is not always possible to get to all places, and places that are undesirable could also be heated.



  The invention avoids these disadvantages in that the heating means or heating channels are attached to and / or in the plastic body, which make it possible to release its frozen voltage. It can be channels through which z. B.

   Hot air or water is conducted and / or embedded electrical heating conductors; the parts can also be filled to the extent that they themselves: act as heating conductors.



  In Fig. 1 a tie rod 1 is shown, in which three heating conductors 2 are embedded transversely to the direction of pull.

   It is now possible to preheat the profile by means of the heating conductor 2 or, but also in a healing oven,

  to pre-stretch the actual tension element of the tie rod 1 and to freeze this state by quenching. Then the tie rod 1 is pushed into the grooves 3 and the tension in the tie rod 1 is released again by heating the heating conductor 2,

          whereby according to Fig. 1 a, the parts 4a are firmly pulled against each other. Since the tensile stresses lie across the heating conductor, it is possible to work with simple, smooth wires. It is different in both cases in A.bb. 2 shown example, where tension and heating conductor run in the same direction.

   It is advantageous to work with a wire helix or a zigzag-shaped, kinked heating conductor, since the voltage can follow the heating conductor.

      According to Fig. 2, pipes 5 and 6, each with a collar 7 and 8, are held together by a U-profile 9. In (the U-profile 9 heating elements 10 are embedded, with which the profile 9 can be heated.

   The heating elements 10 are led to the outside shortly before the ring welding point 11 (as connection ends 12. The U-profile ring 13 is heated and., Expanded so that the inside diameter is larger than or outside diameter of the collar,

          and then deterred. The ring is now ready for installation. At the construction site or, the ring is pushed over the pipes and, as soon as it is over the collar 7 and 8, it is shrunk on by heating over the connection ends 12. The pipes can be:

  A channel or an otherwise poorly accessible place, shrinking is always possible. At the same time, it is also possible to loosen the connection later by heating the ring again.

   In Fig. 3 a profile 14 is shown, which is used by a frozen bending stress to connect or parts 15 and 16 by releasing the tension.



       Fig. 4 shows an example in which a pressure voltage is triggered, which is used to connect two plates 17 @ in an inaccessible place ver, similar to the known explosive rivets. The z.

   B. injection-molded finished rivet 18 is formed at the end where the Heizwendiel sits,. As Zy cylinder 19 under compressive stress. The head recovers by heating via the connection ends 20 and can be used to connect two parts.

Claims (1)

PATENTANSPRUCH Kunststoffkörper, dadurch gekennzeichnet, @dass an und/oder in. diesem Heizmittel oder Heizkanäle .angebracht sind, die eine Auslösung einer eingefrore nen Spannung ermöglichen. UNTERANSPRÜCHE 1. PATENT CLAIM Plastic body, characterized in that heating means or heating channels are attached to and / or in this, which enable a frozen voltage to be triggered. SUBCLAIMS 1. Kunststoffkörper nach Patentanspruch, da- ,durch gekennzeichnet, dass er durch Zusätze elek- trisch leitend gemacht ist. 2. Kunststoffkörper nach Patentanspruch, da durch gekennzeichnet, @dass die Heizmittel laus Wider- standsdrähten bestehen. Plastic body according to patent claim, characterized in that it is made electrically conductive by additives. 2. Plastic body according to claim, characterized in that the heating means consist of resistance wires. 3. Kunststoffkörper nach Unteranspruch 2, da durch gekennzeichnet, dass die Widerstandsdrähte wendet-, zickzackförmig oder ähnlich ausgebildet sind, so @dass sie einer Zug- .und/oder Druck- und/oder Schubspannung des Grandm aterials folgen können. 3. Plastic body according to dependent claim 2, characterized in that the resistance wires are twisted, zigzag-shaped or similar, so that they can follow a tensile .and / or compressive and / or shear stress of the Grandm aterials.
CH1322263A 1962-11-08 1963-10-28 Plastic body CH423209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0040224 1962-11-08

Publications (1)

Publication Number Publication Date
CH423209A true CH423209A (en) 1966-10-31

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NL (1) NL298635A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297342A1 (en) * 1975-01-10 1976-08-06 Raychem Sa Nv FITTINGS WITH THERMAL RECOVERY
EP0368274A2 (en) * 1988-11-11 1990-05-16 Nippon Zeon Co., Ltd. Structural material and its application
DE4021472A1 (en) * 1990-07-05 1992-01-16 Herbert Zickermann Welding thermoplastic sections to give watertight welds - using joining strip with built-in electric heating wires
DE4032376A1 (en) * 1990-10-12 1992-04-16 Aei Ges Fuer Automatik Elektro Easily applied heat shrink tubing - is thermoplastic extrusion with inner and outer features on its profile, which when tubing is cut longitudinally, interlock together
US5820720A (en) * 1996-05-28 1998-10-13 Campbell; Steve Method of and apparatus for electrofusion coupling of thermoplastic pipes
US6131954A (en) * 1996-05-28 2000-10-17 Campbell; Steve Weldable couple for electrofusion coupling of profile wall thermoplastic pipes without a separate coupler
US6521072B1 (en) 1996-05-28 2003-02-18 C&S Intellectual Properties, Llc Method of coupling profile wall thermoplastic pipes
EP1431649A2 (en) * 2002-12-18 2004-06-23 REINERT. RITZ GmbH Plastic T-branch unit
WO2022242815A1 (en) * 2021-05-17 2022-11-24 Stiesdal Offshore A/S Method of connecting tubular members in offshore structures

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297342A1 (en) * 1975-01-10 1976-08-06 Raychem Sa Nv FITTINGS WITH THERMAL RECOVERY
EP0368274A2 (en) * 1988-11-11 1990-05-16 Nippon Zeon Co., Ltd. Structural material and its application
EP0368274A3 (en) * 1988-11-11 1992-01-02 Nippon Zeon Co., Ltd. Structural material and its application
DE4021472A1 (en) * 1990-07-05 1992-01-16 Herbert Zickermann Welding thermoplastic sections to give watertight welds - using joining strip with built-in electric heating wires
DE4032376A1 (en) * 1990-10-12 1992-04-16 Aei Ges Fuer Automatik Elektro Easily applied heat shrink tubing - is thermoplastic extrusion with inner and outer features on its profile, which when tubing is cut longitudinally, interlock together
US5820720A (en) * 1996-05-28 1998-10-13 Campbell; Steve Method of and apparatus for electrofusion coupling of thermoplastic pipes
US5836621A (en) * 1996-05-28 1998-11-17 Campbell; Steve Method of and joint for electrofusion coupling of thermoplastic pipes
US6131954A (en) * 1996-05-28 2000-10-17 Campbell; Steve Weldable couple for electrofusion coupling of profile wall thermoplastic pipes without a separate coupler
US6521072B1 (en) 1996-05-28 2003-02-18 C&S Intellectual Properties, Llc Method of coupling profile wall thermoplastic pipes
EP1431649A2 (en) * 2002-12-18 2004-06-23 REINERT. RITZ GmbH Plastic T-branch unit
EP1431649A3 (en) * 2002-12-18 2005-05-11 REINERT. RITZ GmbH Plastic T-branch unit
WO2022242815A1 (en) * 2021-05-17 2022-11-24 Stiesdal Offshore A/S Method of connecting tubular members in offshore structures

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NL298635A (en)

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