CH674175A5 - - Google Patents

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Publication number
CH674175A5
CH674175A5 CH1886/87A CH188687A CH674175A5 CH 674175 A5 CH674175 A5 CH 674175A5 CH 1886/87 A CH1886/87 A CH 1886/87A CH 188687 A CH188687 A CH 188687A CH 674175 A5 CH674175 A5 CH 674175A5
Authority
CH
Switzerland
Prior art keywords
butt
lines
plastic film
film web
plastic
Prior art date
Application number
CH1886/87A
Other languages
English (en)
Inventor
Albert Giger
Original Assignee
Sarna Kunststoff 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 Sarna Kunststoff Ag filed Critical Sarna Kunststoff Ag
Priority to CH1886/87A priority Critical patent/CH674175A5/de
Priority to DE3809907A priority patent/DE3809907A1/de
Publication of CH674175A5 publication Critical patent/CH674175A5/de

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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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/225—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being castellated, e.g. in the form of a square wave or of a rectangular wave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/038—Covering the joint by a coating 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
    • B29C66/01—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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a sinusoidal wave
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/227—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of repetitive interlocking undercuts, e.g. in the form of puzzle cuts
    • B29C66/2272—Teardrop-like, waterdrop-like or mushroom-like interlocking undercuts
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/227—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of repetitive interlocking undercuts, e.g. in the form of puzzle cuts
    • B29C66/2274—Dovetailed interlocking undercuts
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/229—Other specific patterns not provided for in B29C66/221 - B29C66/227
    • 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
    • B29C66/70—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
    • 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
    • B29C66/721—Fibre-reinforced 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
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5014—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being fibre-reinforced
    • 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
    • B29C65/52—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 way of applying the adhesive
    • B29C65/54—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 way of applying the adhesive between pre-assembled 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—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
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Landscapes

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

Description

BESCHREIBUNG
Die vorliegende Erfindung betrifft eine mindestens zwei stossverbundene Teile aufweisende Kunststoffolienbahn.
Es ist bekannt, Kunststoffolienbahnen, weichein der Produktion eine gewisse Breite, normalerweise 2m aus herstellungstechnischen Gründen, nicht überschreiten, durch Schweissung oder durch Klebung miteinander zu verbinden, um grössere Bahnbreiten zu erreichen.
Eine derartige Verbindung muss als sog. Überlappverbindung hergestellt werden, da eine Stossverbindung, wie sie beim Schweissen von Blechen bekannt ist, bei Kunststoffolien bisher aus Festigkeitsgründen nicht möglich war. Wenn auch ein derartiges Stumpf verbinden versucht wurde, beispielsweise mittels sog. Schweissschnüre, konnten diese Verbindungen nichtbefrie-digen, da sie festigkeitsmässig die an sie gestellten Anforderungen nicht zu erfüllen vermochten.
Wenn auch die Überlappverbindungen festigkeitsmässig den Anforderungen genügen, so weisen sie doch den grossen Nachteil auf, dass im Bereich der Überlappung die Dicke der Kunststoffolienbahn verdoppelt wird. Da der Trend nach dickeren Folien geht, wirkt sich diese Dickenverdoppelung immer unangenehmer aus, indem ein Aufrollen derartiger Folienbahnen in annehmbarer Form kaum mehr möglich ist.
Es wurde zwar versucht, durch sog. Anschiften der zu verbindenden Ränder diesen Dickensprung zu verhüten, was sich aber ausserordentlich kostspielig auf die Herstellung derartiger Kunststoffolienbahnen auswirkt und infolge der äussersten dünnen Randpartien der geschifteten Teile, insbesondere beim Schweissen, gewisse Schwierigkeiten auftraten.
Die vorliegende Erfindung bezweckt eine Kunststoffolienbahn, die sich aus mindestens zwei stossverbundenen Teilen zusammensetzt, festigkeitsgerecht herzustellen und damit für die Technik unter den gegebenen Vorschriften anwendbar zu gestalten.
Dieser Zweck kann erfindungsgemäss dadurch erreicht werden, dass die Stosslinien der beiden Teile mindestens auf einem
Teil ihrer Länge gebogen und/oder gebrochen ausgebildet sind.
Auf diese Weise entsteht anstelle der bekannten gradlinigen linearen Stösse eine Stossverbindung mit zweidimensionalem Verlauf der Stosslinien, wodurch die entsprechenden Festigkeits-s Vorschriften im Nahtbereich für derartige Folienbahnen einhaltbar werden.
Die Erfindung wird anschliessend beispielsweise anhand einer Zeichnung erläutert.
Es zeigen:
io Fig. 1,3,5 bis 8 Ausschnitte aus sechs unterschiedlichen Kunststoffolienbahnen, zusammengesetzt aus zwei stossverbundenen Kunststoffolien, in Aufsicht; ,
Fig. 2 einen Schnitt durch die Kunststoffolienbahn nach Fig. 1, gemäss Schnittlinie A-A;
15 Fig. 4 einen Schnitt gemäss Schnittlinie B-B der Fig. 3, mit zusätzlichem Kunststoffband.
Die Fig. 1 und2zeigen eine Kunststoffolienbahn 1 im Ausschnitt, welche sich aus zwei Kunststoffolien 2 und 3 zusammensetzt. Die Ränder dieser Folien 2 und 3 sind als Stosslinien 5 20 und 6 mäanderförmig ausgebildet und beispielsweise mittels Stanzwerkzeugen hergestellt. Diese Stosslinien 5 und 6 legen freie Ränder der Folien 2 und 3 fest, die ineinandergreifen und damit a priori eine formschlüssige Verbindung bilden. Die Verbindung dieser Folien 2 und 3 kann durch deren Zusam-25 menschweissen an den Stosslinien 5 und 6 erfolgen. Bestehen die Folien beispielsweise aus Polyäthylen, so sind diese Bereiche der Stosslinien 5 und 6 auf Temperaturen im Schmelzbereich zu erhöhen, so dass die Ränder ineinander überfliessen und damit eine zugstarke Verbindung ergeben, welche, durch die Form-30 schlüssigkeit und die Länge der verbindenden Schweisslinien bedingt, den Anforderungen bezüglich Zugfestigkeit genügen.
Es ist dabei möglich, diese mäanderförmigen gebogenen Stosslinien zusätzlich zu zahnen oder zu kerben, womit insbesondere die Schweissnahtlänge weiterhin verlängert wird, was sich 35 positiv auf den Zusammenhalt der beiden Folien 2 und 3 auswirkt.
Wie Fig. 2 zeigt, ist es auf diese Weise möglich, Folien miteinander zu verbinden, welche keine merkliche Verdickung ergeben, d. h. welche im Sinne von Blechen im Stoss und nicht in 40 Überlappung verbunden werden können.
Eine weitere Ausführungsmöglichkeit zeigt Fig. 3, welche grundsätzlich gleich aufgebaut ist bezüglich Stosslinien, wie die Fig. 1 und 2. Die hier dargestellte Kunststoffolienbahn 8 besteht ebenfalls aus zwei Kunststoffolien 9 und 10 - es können natürlich 45x-beliebige Folienanzahlen auf diese Art miteinander verbunden werden- wobei die beiden Stosslinien 12 und 13 nicht aneinan-derstossen, sondern einen Zwischenraum 14 freilassen, in den beispielsweise eine Verbindungspaste, insbesondere ein sog. Plastisol, eingebracht werden kann, worauf das Ganze erhitzt so und die beiden Folien 9 und 10 miteinander verbunden werden und dann die nötige Zugfestigkeit aufweisen. Bei der dargestellten Ausführung ist ferner ein Kunststoffband 16 als mögliche Verstärkung auf der einen Seite - es kann auch beidseitig sein-aufgebracht, dasz. B. aus Kevlar oder Polyester od. dgl., besteht 55und beschichtet sein kann. Bei dieser Ausführung ist die Dicke im Bereich der Verbindungsstelle durch das Anbringen des Kunststoffbandes 16 etwas angewachsen, jedoch im Verhältnis zur Dicke bei Überlappschweissungen immer noch sehr klein.
Die Fig. 5 bis 8 zeigen weitere Möglichkeiten der Ausbildung 60von Stosslinien 20-23, welche hier als gebrochene Linien ausgebildet sind. Dabei zeigt Fig. 5 ein sog. Schwalbenschwanzverbindung, d. h. eine formschlüssige Verbindung, während die Fig. 6, 7 und 8 durch die Schweissverbindung zu kraftschlüssigen Verbindungen gemacht werden.
65 Es ist auch hier möglich, durch entsprechende Zahnung das Ineinandergreifen zu verbessern und formschlüssig zu gestalten.
Auf diese Weise ist es möglich, bei optimalen Fabrikationsbedingungen von beispielsweise 2 m breiten Bahnen, Kunststoff
3
674 175
bahnen, besonders aus thermoplastischem Material, mühelos in irgend einer Breite endlos oder genau flächenmässig dimensioniert zu erstellen, ohne dass dafür maschinelle Schwierigkeiten enstehen. Aufgrund der Ausbildung der Stosslinien in gebogener und/oder gebrochener Form, können die verlangten Zugfestigkeiten erreicht werden, was beider Stossschweissung, z. B. mittels Schweissschnüren bei geraden Stosslinien nicht erreichbar ist.
Bei den Kunststoffolien kann es sich um armierte oder nicht armierte Folien handeln. Grundsätzlich ändert an den vorbeschriebenen Tatsachen nichts.
5 Alle in der Beschreibung und/oder den Figuren dargestellten Einzelteile und Einzelmerkmale sowie deren Permutationen, Kombinationen und Variationen sind erfinderisch und zwar für n Einzelteile und Einzelmerkmale mit den Werten n = 1 bis n —» °°.
M
1 Blatt Zeichnungen

Claims (7)

674 175 PATENTANSPRÜCHE
1. Mindestens zwei stossverbundene Teile (2,3) aufweisende Kunststoffolienbahn (1), dadurch gekennzeichnet, dass die Stosslinien (5,6,20,23) der beiden Teile (2,3) mindestens auf einem Teil ihrer Länge gebogen und/oder gebrochen ausgebildet sind.
2. Kunststoffolienbahn nach Anspruch 1, dadurch gekennzeichnet, dass die Stosslinien mindestens auf einem Teil ihrer Länge formschlüssig ineinandergreifen (Fig. 1, 3,5).
3. Kunststoffolienbahn nach Anspruch 1, dadurch gekennzeichnet, dass die Stosslinien mindestens auf einem Teil ihrer Länge gezahnt oder gekerbt sind.
4. Kunststoffolienbahn nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass die Stosslinien durch eine Klebepaste oder durch Schweissung miteinander verbunden sind, z.B. mittels einer Schweissschnur.
5. Kunststoffolienbahn nach einem der Ansprüche 1-4, gekennzeichnet durch mindestens ein Kunststoffband (16), welches die Stosslinien (12,13) überdeckt und mit den beiden Teilen (9,10) verschweisst oder verklebt ist.
6. Kunststoffolienbahn nach Anspruch 5, dadurch gekennzeichnet, dass das Band (16) eine Armierung aufweist, z.B. Kevlar oder Polyester, und vorzugsweise beschichtet ist.
7. Kunststoffolienbahn nach einem der Ansprüche 1-6, dadurch gekennzeichnet, dass die Stosslinien (12,13) einen Abstand (14) voneinander aufweisen.
CH1886/87A 1987-05-15 1987-05-15 CH674175A5 (de)

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DE3809907A DE3809907A1 (de) 1987-05-15 1988-03-24 Kunststoffolienbahn

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DE4110176C2 (de) * 1991-03-27 1996-11-07 Kia Keramik In Der Abwassertec Verfahren zum Herstellen von Bauplattenelementen und Vorrichtung zum Durchführen des Verfahrens
DE4441681A1 (de) * 1994-11-23 1996-05-30 Teroson Gmbh Verfahren zum Verbinden von Kunststoff-Formteilen
DE4443438A1 (de) * 1994-12-07 1996-06-13 Melzer Maschinenbau Gmbh Verfahren zum Herstellen von Kunststoffkarten
EP1597053B1 (de) * 2003-02-24 2011-05-11 Bell Helicopter Textron Inc. Eingriffszahnverbindung zum zusammenfügen von faserverbundlaminaten
FR2861012B1 (fr) * 2003-10-17 2007-06-15 Plastic Omnium Cie Procede d'assemblage de deux bandes en matiere plastique.
FR3101297B1 (fr) * 2019-09-27 2021-09-24 Faurecia Interieur Ind Pièce de véhicule à adhésion améliorée, et procédé associé

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