DE102011015453A1 - Method for introducing foam material into hollow chamber profiles and hollow chamber profile - Google Patents
Method for introducing foam material into hollow chamber profiles and hollow chamber profile Download PDFInfo
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- DE102011015453A1 DE102011015453A1 DE102011015453A DE102011015453A DE102011015453A1 DE 102011015453 A1 DE102011015453 A1 DE 102011015453A1 DE 102011015453 A DE102011015453 A DE 102011015453A DE 102011015453 A DE102011015453 A DE 102011015453A DE 102011015453 A1 DE102011015453 A1 DE 102011015453A1
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- hollow chamber
- foam material
- profile
- reinforcing tape
- foaming
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- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/128—Internally reinforcing constructional elements, e.g. beams
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
- B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
- B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
- B29C44/324—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables the preformed parts being tubular or folded to a tubular shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/06—Single frames
- E06B3/08—Constructions depending on the use of specified materials
- E06B3/20—Constructions depending on the use of specified materials of plastics
- E06B3/22—Hollow frames
- E06B3/221—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B3/267—Frames with special provision for insulation with insulating elements formed in situ
-
- 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
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
- B29C48/1474—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at a calibration zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/156—Coating two or more articles simultaneously
-
- 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
- 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
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/256—Sheets, plates, blanks or films
-
- 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
- B29L2031/001—Profiled members, e.g. beams, sections
- B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
- B29L2031/005—Profiled members, e.g. beams, sections having a profiled transverse cross-section for making window frames
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/06—Single frames
- E06B3/08—Constructions depending on the use of specified materials
- E06B3/20—Constructions depending on the use of specified materials of plastics
- E06B3/22—Hollow frames
- E06B3/221—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity
- E06B3/222—Hollow frames with the frame member having local reinforcements in some parts of its cross-section or with a filled cavity with internal prefabricated reinforcing section members inserted after manufacturing of the hollow frame
- E06B2003/225—Means for stabilising the insert
- E06B2003/226—Means for stabilising the insert by adhesives or filling up the remainder of the cavity, e.g. together with foam
Abstract
Die Erfindung betrifft ein Verfahren zur Einbringung von Schaummaterial (3) in Hohlkammerprofile, insbesondere Fenster- oder Türhohlkammerprofile. Im Wege eines Extrusionsverfahrens erfolgt die Formgebung des mindestens eine Hohlkammer (2, 2') aufweisenden Hohlkammerprofils (1), wobei an mindestens einer Innenseite (4) mindestens einer auszuschäumenden Hohlkammer (2) mindestens ein Verstärkungsband (6) angeordnet wird. Danach wird Schaummaterial (3) in die zu befüllende Hohlkammer (2) eingebracht, wobei durch das Verstärkungsband (6) eine Deformation der Hohlkammer (2) aufgrund des beim Schaumvorgang entstehenden Überdrucks vermieden wird. Gegenstand der Erfindung ist auch ein Hohlkammerprofil (1).The invention relates to a method for introducing foam material (3) into hollow chamber profiles, in particular window or door hollow chamber profiles. The molding of the hollow chamber profile (1) having at least one hollow chamber (2, 2 ') takes place by means of an extrusion process, wherein at least one reinforcing strip (6) is arranged on at least one inner side (4) of at least one hollow chamber (2) to be foamed. Thereafter, foam material (3) is introduced into the hollow chamber (2) to be filled, whereby a deformation of the hollow chamber (2) due to the overpressure arising during the foaming process is avoided by the reinforcing strip (6). The invention is also a hollow chamber profile (1).
Description
Die Erfindung betrifft ein Verfahren zur Einbringung von Schaummaterial in Hohlkammerprofile, insbesondere Fenster- oder Türhohlkammerprofile.The invention relates to a method for introducing foam material in hollow chamber profiles, in particular window or door hollow chamber profiles.
In der Literatur sind verschiedene derartige Verfahren beschrieben. So ist beispielsweise aus der
Die
Aus der
Bei der Ausschäumung von extrudierten Hohlkammerprofilen besteht grundsätzlich das Problem, dass es aufgrund des beim Schaumvorgang entstehenden Überdrucks zu einer Deformation der Hohlkammergeometrie kommen kann. Dies kann dazu führen, dass sich die Hohlkammerprofile beispielsweise ausbeulen oder verbiegen, insgesamt also nicht mehr die für eine ordnungsgemäße Verarbeitung notwendige Maßgenauigkeit besitzen. Dieses Problem ist insbesondere dann zu beobachten, wenn ein chemischer Schäumvorgang vorgesehen ist, beispielsweise zur Herstellung von Polyurethan. Bei der Herstellung von Polyurethan werden die beiden Komponenten Polyisocyanat und Polyol in die Hohlkammer eingebracht und nehmen dort zunächst ein vergleichsweise geringes Volumen ein. Aufgrund der chemischen Reaktion zwischen diesen beiden Komponenten kommt es jedoch dann zu dem beabsichtigten Schäumvorgang, der mit der Entstehung eines großen Überdrucks einhergehen kann. Insbesondere bei endlosen Extrusionsprofilen besteht da her die Problematik, dass sich dieser Überdruck oft nur über die zuvor beschriebene Deformation des Hohlkammerprofils abbauen kann, weshalb die prozesstechnische Beherrschung des Ausschäumvorgangs bei Extrudaten häufig sehr schwierig ist. Auch bei physikalischen Schaumvorgängen kann aufgrund des für die physikalische Schäumung erforderlichen Prozessdrucks eine Deformation der Hohlkammerwandung nicht ausgeschlossen werden.When foaming extruded hollow chamber profiles, there is basically the problem that deformation of the hollow chamber geometry can occur due to the overpressure created during the foaming process. This can lead to bulging or bending of the hollow chamber profiles, for example, so that they no longer have the necessary dimensional accuracy for proper processing. This problem is particularly observed when a chemical foaming process is provided, for example for the production of polyurethane. In the production of polyurethane, the two components polyisocyanate and polyol are introduced into the hollow chamber and take there first a relatively small volume. However, due to the chemical reaction between these two components, the intended foaming process occurs, which can be accompanied by the generation of a large overpressure. Particularly in the case of endless extrusion profiles, the problem arises that this overpressure can often only be reduced by the previously described deformation of the hollow chamber profile, which is why the process control of the foaming process in extrudates is often very difficult. Even with physical foam processes, a deformation of the hollow chamber wall can not be ruled out due to the process pressure required for the physical foaming.
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur Einbringung von Schaummaterial in Hohlkammerprofile anzugeben, bei dem eine Deformation des Hohlkammerprofils aufgrund des Schäumvorganges sicher vermieden werden kann.Against this background, the invention has for its object to provide a method for introducing foam material in hollow sections, in which a deformation of the hollow chamber profile due to the foaming process can be safely avoided.
Erfindungsgemäß wird die Aufgabe gelöst durch ein Verfahren zur Einbringung von Schaummaterial in Hohlkammerprofile, insbesondere Fenster- oder Türhohlkammerprofile,
- – wobei im Wege eines Extrusionsverfahrens die Formgebung des mindestens eine Hohlkammer aufweisenden Hohlkammerprofils erfolgt,
- – wobei an mindestens einer Innenseite mindestens einer auszuschäumenden Hohlkammer mindestens ein Verstärkungsband angeordnet wird,
- – wobei danach Schaummaterial in die zu befüllende Hohlkammer eingebracht wird und
- – wobei durch das Verstärkungsband eine Deformation der Hohlkammer aufgrund des beim Schaumvorgang entstehenden Überdrucks vermieden wird.
- Wherein the shaping of the hollow chamber profile having at least one hollow chamber takes place by means of an extrusion method,
- At least one reinforcing band being arranged on at least one inner side of at least one hollow chamber to be foamed out,
- - After which foam material is introduced into the hollow chamber to be filled and
- - By the reinforcing strip deformation of the hollow chamber is avoided due to the pressure generated during the foam process overpressure.
Erfindungsgemäß wird durch das Verstärkungsband eine Armierung der Hohlkammer bereitgestellt, durch die eine bleibende Verformung des Hohlkammerprofils während des Schaumvorgangs verhindert wird. Das Verstärkungsband kann an der Innenwand der auszuschäumenden Hohlkammer befestigt sein. Alternativ ist beispielsweise auch ein Einklemmen zwecks Fixierung der Lage des Verstärkungsbandes denkbar. Das Verstärkungsband kann eine Dicke von 0,3 bis 3 mm besitzen, z. B. 0,5 bis 2 mm. Zweckmäßigerweise wird das Verstärkungsband an der Innenseite einer Außenwand des Hohlkammerprofils angeordnet. Im Rahmen der Erfindung liegt es insbesondere, dass an beiden Innenseiten der seitlichen Außenwände des Hohlkammerprofils jeweils mindestens ein Verstärkungsband angeordnet werden. Dadurch werden insbesondere die Sichtflächen des Hohlkammerprofils gegen eine Deformation während des Ausschäumvorganges geschützt.According to the invention, a reinforcement of the hollow chamber is provided by the reinforcing strip, by which a permanent deformation of the hollow chamber profile is prevented during the foaming process. The reinforcing tape may be attached to the inner wall of the hollow chamber to be foamed. Alternatively, for example, a pinching for the purpose of fixing the position of the reinforcing tape is conceivable. The reinforcing tape may have a thickness of 0.3 to 3 mm, e.g. B. 0.5 to 2 mm. Conveniently, the reinforcing strip is arranged on the inside of an outer wall of the hollow chamber profile. In the context of the invention, it is in particular in each case that at least one reinforcing band is arranged on both inner sides of the lateral outer walls of the hollow chamber profile. As a result, in particular the visible surfaces of the hollow chamber profile are protected against deformation during the foaming process.
Das Verstärkungsband kann aus Metall oder Kunststoff bestehen. So kann hierbei beispielsweise ein Faser-Matrix-Halbzeug aus einer Kunststoff-Matrix zum Einsatz kommen, in die Verstärkungsfasern integriert sind. Als Verstärkungsfasern können Mineral- (z. B. Glas-) und/oder Carbon- und/oder Aramaid- und/oder Basaltfasern verwendet werden. Insbesondere können Organobleche als Verstärkungsbänder verwendet werden. Das Verstärkungsband kann eine Beschichtung aufweisen, die ein sicheres Verkleben des Verstärkungsbandes mit der Hohlkammerwandung gewährleistet.The reinforcing band may be made of metal or plastic. Thus, for example, a fiber-matrix semifinished product made of a plastic matrix can be used, are integrated in the reinforcing fibers. As reinforcing fibers, mineral (eg glass) and / or carbon and / or aramid and / or basalt fibers may be used. In particular, organic sheets can be used as reinforcing tapes. The reinforcing tape may have a coating which ensures a secure bonding of the reinforcing tape to the hollow chamber wall.
Gemäß einer bevorzugten Ausführungsform der Erfindung weist das Verstärkungsband eine profilierte Kontur auf, die dem Verstärkungsband eine zusätzliche Funktion verleiht. So kann die Profilierung zur Ausbildung eines Schraubkanals – z. B. für Beschlagbefestigungen – innerhalb der auszuschäumenden Hohlkammer dienen. Dadurch kann die Geometrie des Hohlkammerprofils ggf. vereinfacht werden, da nunmehr keine Stege zur Schraubkanalbildung mehr vorgesehen werden müssen. Hierdurch vereinfacht sich auch der Ausschäumprozess. Die Profilierung des Verstärkungsbandes kann in einem Werkzeug unter Zufuhr von Wärme oder aber auch durch vorgeschaltete Einrichtungen, wie z. B. Rollensätze, erfolgen.According to a preferred embodiment of the invention, the reinforcing tape has a profiled contour which gives the reinforcing tape an additional function. Thus, the profiling to form a screw - z. B. for fitting fittings - serve within the auszuschäumenden hollow chamber. This allows the Geometry of the hollow chamber profile may be simplified, since now no webs for Schraubkanalbildung must be provided. This also simplifies the foaming process. The profiling of the reinforcing strip can be done in a tool with the supply of heat or by upstream devices such. B. Roll sets done.
Im Rahmen der Erfindung liegt es, dass die Ausschäumung mittels einer Lanze erfolgt. Das Verstärkungsband kann innerhalb des Extrusionsprozesses in die Hohlkammer eingebracht werden. So kann z. B. das Verstärkungsband entweder gemeinsam mit dem Hohlkammerprofil koextrudiert werden oder ein bereits fertiges Verstärkungsband in den Extruder einlaufen.In the context of the invention it is that the foaming takes place by means of a lance. The reinforcing band can be introduced into the hollow chamber within the extrusion process. So z. B. the reinforcing tape are co-extruded either together with the hollow chamber profile or enter an already finished reinforcing tape in the extruder.
Das Hohlkammerprofil kann bereichsweise oder vollflächig aus faserverstärktem Kunststoff bestehen, wobei als Verstärkungsmaterialien insbesondere Mineral- (z. B. Glas-) und/oder Carbon- und/oder Aramaid- und/oder Basaltfasern verwendet werden können. Die Verstärkungsmaterialien können die bei Fenster- oder Türhohlkammerprofilen üblicherweise erforderliche Stahlarmierung entbehrlich machen, wodurch sich der innere freie Profilraum, der zur Befüllung mit wärmedämmendem Schaummaterial genutzt werden kann, vergrößert. Die Verwendung von unverstärktem Kunststoffmaterial wird hierdurch jedoch selbstverständlich nicht ausgeschlossen.The hollow-chamber profile can be made of fiber-reinforced plastic in regions or over the entire surface, in which case mineral (eg glass) and / or carbon and / or aramid and / or basalt fibers can be used as reinforcing materials. The reinforcing materials can make the steel reinforcement usually required for window or door hollow chamber profiles dispensable, which increases the inner free profile space which can be used for filling with heat-insulating foam material. However, the use of unreinforced plastic material is of course not excluded.
Vorzugsweise besteht das Schaummaterial aus einem organischen Material mit niedriger Wärmeleitfähigkeit. Hierbei können insbesondere Polystyrol, Polyvinylchlorid, Polyethylen, Polyurethan oder Mischungen zweier oder mehr der genannten Materialien verwendet werden. Die Wärmeleitfähigkeit des Schaummaterials λ beträgt vorzugsweise 0,02 bis 0,04 W/mK. Dies gewährleistet eine nachhaltige Verbesserung der Wärmedämmeigenschaften des gesamten Hohlkammerprofils. Alternativ kann das Schaummaterial auch anorganisch sein.Preferably, the foam material is an organic material with low thermal conductivity. In this case, in particular polystyrene, polyvinyl chloride, polyethylene, polyurethane or mixtures of two or more of the materials mentioned can be used. The thermal conductivity of the foam material λ is preferably 0.02 to 0.04 W / mK. This ensures a lasting improvement in the thermal insulation properties of the entire hollow chamber profile. Alternatively, the foam material may also be inorganic.
Als zusätzliche Maßnahme zur Verhinderung eines durch den Schäumvorgang bedingten zu großen Überdrucks kann zweckmäßigerweise die vom Schaummaterial in der Hohlkammer verdrängte Luft über mindestens einen Entlüftungskanal in mindestens eine benachbarte Hohlkammer entweichen. Hierbei kann über vergleichsweise einfach herzustellende Entlüftungskanäle die vom Schaummaterial während des Schaumvorgangs verdrängte Luft in die benachbarte Hohlkammer abströmen, wodurch der Aufbau eines unzulässig hohen Überdrucks während des Schaumvorgangs vermieden wird. Entsprechend unterstützt diese Maßnahme die Wirkung des erfindungsgemäßen Verstärkungsbandes. Durch die benachbarte Hohlkammer kann die vom Schaummaterial verdrängte Luft problemlos abströmen, insbesondere wenn die benachbarte Hohlkammer selbst nicht ausgeschäumt wird. In der Regel werden die Entlüftungskanäle in Extrusionsrichtung in gleichmäßigen Abständen angeordnet. Vorzugsweise werden die Entlüftungskanäle während der Extrusion des Hohlkammerprofils erzeugt, beispielsweise mittels einer getakteten Stanzvorrichtung im Werkzeug. Im Rahmen der Erfindung liegt es auch, dass in die Hohlkammer soviel Schaummaterial eingebracht wird, dass überschüssiges Schaummaterial über den Entlüftungskanal in eine benachbarte Hohlkammer entweicht. Die Entlüftungskanäle können die Form von länglichen Schlitzen aufweisen, welche einerseits fertigungstechnisch vergleichsweise einfach herstellbar sind und andererseits eine vernachlässigbare mechanische Schwächung des Profils zur Folge haben.As an additional measure to prevent excessive overpressure caused by the foaming process, the air displaced by the foam material in the hollow chamber can expediently escape via at least one venting channel into at least one adjacent hollow chamber. Hereby, the air displaced by the foam material during the foaming process can flow off into the adjacent hollow chamber via comparatively easy to produce venting channels, whereby the construction of an inadmissibly high overpressure during the foaming process is avoided. Accordingly, this measure supports the effect of the reinforcing strip according to the invention. By the adjacent hollow chamber displaced by the foam material air can flow easily, especially if the adjacent hollow chamber itself is not filled with foam. In general, the venting channels are arranged in the extrusion direction at equal intervals. Preferably, the vent channels are generated during the extrusion of the hollow chamber profile, for example by means of a clocked punching device in the tool. It is also within the scope of the invention that so much foam material is introduced into the hollow chamber that excess foam material escapes via the venting channel into an adjacent hollow chamber. The venting channels may be in the form of elongate slots, which on the one hand are comparatively easy to produce in terms of production and, on the other hand, result in negligible mechanical weakening of the profile.
Alternativ hierzu oder ergänzend kann in die mit Schaummaterial zu befüllende Hohlkammer eine verformbare Trennwandung eingebracht werden, die die Hohlkammer in mindesten zwei Bereiche unterteilt, wobei danach in einem von Hohlkammerwandung und Trennwandung begrenzten Bereich das Schaummaterial eingebracht wird. Durch den beim Schaumvorgang entstehenden Überdruck wird die Trennwandung derart verformt, dass sich der auszuschäumende Bereich vergrößert und dadurch eine durch den Schaumvorgang bedingte Deformation des Hohlkammerprofils vermieden wird. Über die Trennwandung wird sozusagen ein „Pufferbereich” erzeugt, welcher nicht ausgeschäumt wird und sich zwecks Vermeidung eines zu hohen Drucks in der Hohlkammer beim Schaumprozess verkleinert. Entsprechend dient auch hier die Trennwandung zu einer Unterstützung der Wirkung des erfindungsgemäßen Verstärkungsbandes. Die Trennwandung kann als knickbarer Steg, vorzugsweise aus Kunststoff, z. B. Weich-PVC, ausgebildet sein. Die Dicke des Steges beträgt vorzugsweise 0,3 bis 2 mm. Der Steg kann während des Schaumvorgangs ein- oder mehrfach geknickt werden und sich hierbei vorzugsweise an die Wandung des nicht ausgeschäumten Bereiches der Hohlkammer anlegen. Der Steg kann auch bereits vor der Schaumeinbringung mindestens einen Knick aufweisen. Alternativ hierzu kann die Trennwandung auch als Folie ausgebildet sein. Zwecksmäßigerweise ist die Trennwandung in die Hohlkammer eingeklemmt. Die Trennwandung kann entweder im Rahmen eines Koextrusionsprozesses gemeinsam mit dem Hohlkammerprofil extrudiert werden, oder aber auch alternativ als bereits vorgefertigtes Profil in den Extruder einlaufen. Zweckmäßigerweise liegt die Trennwandung nach dem Schaumvorgang zumindest nicht vollflächig an der Hohlkammerwandung an, sodass in der Hohlkammer mindestens ein nicht ausgeschäumter Bereich verbleibt.Alternatively or additionally, a deformable dividing wall can be introduced into the hollow chamber to be filled with foam material, which subdivides the hollow chamber into at least two regions, after which the foam material is introduced in a region delimited by the hollow chamber wall and the dividing wall. As a result of the overpressure that arises during the foaming process, the dividing wall is deformed in such a way that the region to be foamed increases and thus deformation of the hollow chamber profile caused by the foaming process is avoided. About the partition, so to speak, a "buffer area" is generated, which is not filled with foam and shrinks in order to avoid excessive pressure in the hollow chamber during the foaming process. Accordingly, the partition also serves to support the effect of the reinforcing strip according to the invention. The partition can be used as a bendable web, preferably made of plastic, z. As soft PVC, be formed. The thickness of the web is preferably 0.3 to 2 mm. The web can be kinked one or more times during the foaming process and in this case preferably rest against the wall of the non-foamed region of the hollow chamber. The web can also have at least one bend before the foam is introduced. Alternatively, the partition may be formed as a film. Conveniently, the partition is clamped in the hollow chamber. The dividing wall can either be extruded together with the hollow chamber profile as part of a coextrusion process, or else alternatively run into the extruder as an already prefabricated profile. Expediently, after the foaming process, the dividing wall at least does not rest against the entire surface of the hollow chamber wall, so that at least one non-foamed region remains in the hollow chamber.
Im Rahmen der Erfindung liegt es ferner, dass nach der Formgebung des Hohlkammerprofils in eine Außenwandung der mit Schaummaterial zu befüllenden Hohlkammer mindestens eine Öffnung eingebracht wird, wobei danach ebenfalls im Rahmen des kontinuierlichen Fertigungsverfahrens mittels einer in Extrusionsrichtung mitgeführten Vorrichtung die Einbringung von Schaummaterial durch die Öffnung in die zu befüllende Hohlkammer erfolgt. Mit dieser Maßnahme wird eine Online-Ausschäumung sichergestellt, ohne dass hierbei verfahrenstechnische Probleme auftreten, wie sie bei einer unmittelbaren Integration der Schaummaterialeinbringung in den Extrusionsprozess (z. B. gemäß
Gegenstand der Erfindung ist ferner ein Hohlkammerprofil gemäß Anspruch 13.The invention further relates to a hollow chamber profile according to
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlich erläutert. Es zeigen schematisch:In the following the invention will be explained in detail with reference to a drawing showing only one embodiment. They show schematically:
Das Hohlkammerprofil
Bei dem in
Bei dem in
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10035649 A1 [0002] DE 10035649 A1 [0002]
- WO 2009/062986 A1 [0003, 0016] WO 2009/062986 A1 [0003, 0016]
- DE 19731163 A1 [0003, 0016] DE 19731163 A1 [0003, 0016]
- DE 4331816 A1 [0004] DE 4331816 A1 [0004]
Claims (13)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011015453A DE102011015453A1 (en) | 2010-10-21 | 2011-03-30 | Method for introducing foam material into hollow chamber profiles and hollow chamber profile |
DE202011050876U DE202011050876U1 (en) | 2011-03-30 | 2011-08-02 | Hollow chamber profile |
EP11772892.3A EP2629951A1 (en) | 2010-10-21 | 2011-10-17 | Method for introducing foam material into hollow chamber profiles, and hollow chamber profile |
PCT/EP2011/005195 WO2012052143A1 (en) | 2010-10-21 | 2011-10-17 | Method for introducing foam material into hollow chamber profiles, and hollow chamber profile |
PCT/EP2012/001002 WO2012130377A1 (en) | 2011-03-30 | 2012-03-07 | Hollow-chamber profile |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102010049098.9 | 2010-10-21 | ||
DE102010049098 | 2010-10-21 | ||
DE102011015453A DE102011015453A1 (en) | 2010-10-21 | 2011-03-30 | Method for introducing foam material into hollow chamber profiles and hollow chamber profile |
Publications (1)
Publication Number | Publication Date |
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DE102011015453A1 true DE102011015453A1 (en) | 2012-04-26 |
Family
ID=45923319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011015453A Withdrawn DE102011015453A1 (en) | 2010-10-21 | 2011-03-30 | Method for introducing foam material into hollow chamber profiles and hollow chamber profile |
Country Status (3)
Country | Link |
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EP (1) | EP2629951A1 (en) |
DE (1) | DE102011015453A1 (en) |
WO (1) | WO2012052143A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3137276B1 (en) * | 2014-04-30 | 2019-07-31 | Zephyros Inc. | Method for making an insert as structural reinforcement |
EP3636869A1 (en) * | 2018-10-12 | 2020-04-15 | heroal- Johann Henkenjohann GmbH & Co. KG | Multi-chamber hollow profile for fire safety doors or windows and method and device for producing such a multi-chamber hollow profile |
DE102021109307A1 (en) | 2021-04-14 | 2022-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Method for foaming a multi-chamber profile, body and motor vehicle |
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- 2011-10-17 WO PCT/EP2011/005195 patent/WO2012052143A1/en active Application Filing
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Also Published As
Publication number | Publication date |
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EP2629951A1 (en) | 2013-08-28 |
WO2012052143A1 (en) | 2012-04-26 |
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