DE2927360A1 - METHOD FOR PRODUCING UNDER DEFORMING IN A PRESS AT HIGH TEMPERATURE OF REINFORCED POLYURETHANE MOLDING FOAM PANELS AND PLATES PRODUCED BY THE PROCESS - Google Patents
METHOD FOR PRODUCING UNDER DEFORMING IN A PRESS AT HIGH TEMPERATURE OF REINFORCED POLYURETHANE MOLDING FOAM PANELS AND PLATES PRODUCED BY THE PROCESSInfo
- Publication number
- DE2927360A1 DE2927360A1 DE19792927360 DE2927360A DE2927360A1 DE 2927360 A1 DE2927360 A1 DE 2927360A1 DE 19792927360 DE19792927360 DE 19792927360 DE 2927360 A DE2927360 A DE 2927360A DE 2927360 A1 DE2927360 A1 DE 2927360A1
- Authority
- DE
- Germany
- Prior art keywords
- press
- plate
- foils
- polyurethane
- foam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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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
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/569—Shaping and joining components with different densities or hardness
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
- B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
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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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B29/007—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/022—Foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/10—Fibres of continuous length
- B32B2305/18—Fabrics, textiles
- B32B2305/188—Woven fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/38—Meshes, lattices or nets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/08—Glass
- B32B2315/085—Glass fiber cloth or fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2317/00—Animal or vegetable based
- B32B2317/12—Paper, e.g. cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2375/00—Polyureas; Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2607/00—Walls, panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Body Structure For Vehicles (AREA)
Description
PatentanwältePatent attorneys
Dipl.-Ing. H. SchmittDipl.-Ing. H. Schmitt
Dipl.-Ing. W. MauchefDipl.-Ing. W. Mauchef
Drei" cninstraße 13Drei "cninstraße 13
7:: C-- ^r iburg7 :: C-- ^ r iburg
f iJnserä Akfe-^. Biite stets angeben!f iJnserä Akfe- ^. Please always specify!
ROTH FRERES, S.A.ROTH FRERES, S.A.
5, rue Schertz, STRASBOURG-MEINAU -Bas-Rhin-, Frankreich5, rue Schertz, STRASBOURG-MEINAU -Bas-Rhin-, France
Verfahren zur Herstellung unter Verformung in einer Presse bei hoher Temperatur von verstärkten Polyurethan-Formschaumplatten sowie mittels des Verfahrens hergestellte Platten Process for the production of reinforced polyurethane molded foam panels with deformation in a press at high temperature, as well as panels produced by means of the process
Die vorliegende Erfindung bezieht sich auf die Herstellung von Formplatten, die insbesondere für hängende Zimmerdecken, für den Fahrzeugbau und dergleichen Anwendung finden, und hat ein Herstellungsverfahren zum Gegenstand, bei dem durch Verformung.in einer Presse bei hoher Temperatur verstärkte Polyurethan-Schaumstoff-Formplatten erzeugt werden.The present invention relates to manufacturing of molded panels, which are used in particular for suspended ceilings, for vehicle construction and the like, and has a manufacturing process for the subject, in which by deformation in a press at high temperature reinforced Polyurethane foam molded panels are produced.
Die Erfindung bezieht sich ebenfalls auf eine mittels des Verfahrens hergestellte Platte.The invention also relates to a means of Process manufactured plate.
Zur Zeit stehen harte oder halbharte Polyurethan-Schaumstoffe zur Verfügung, die ausgezeichnete.thermoplastische Eigenschaften aufweisen, so dass eine Platte aus einem solchen Schaumstoff zur Erweichung erwärmt und dann zwischen dieHard or semi-hard polyurethane foams are currently available available that have excellent thermoplastic properties have, so that a plate of such a foam is heated to soften and then between the
mit .einer
Platten einer/Matrize und einem Stempel ausgestatteten Presse gelegt werden kann und nach der vollständigen Abkühlung des
Schaumstoffs die Platte eine dauerhaffe Form besitzt. Diewith .one
Plates a / die and a punch equipped press can be placed and after the complete cooling of the foam, the plate has a permanent shape. the
909884/0769909884/0769
Abkühlung des Schaumstoffes erfolgt schnell, weil sie während des Zusaramendrückens in dem Presswerkzeug stattfindet, das im übrigen vorzugsweise wassergekühlt ist.Cooling down of the foam occurs quickly because it is during the compression takes place in the pressing tool that otherwise is preferably water-cooled.
Das Plattpnraaterial zur Herstellung der Formplatten wird entweder durch Abschneiden mit der gewünschten Stärke von massiv gegessenen Schaumstoffblöcken oder durch Schaumstoffherstellung in Schichten zwischen zwei umlaufenden Bändern erzeugt, deren Zwischenabstand die Schaurastoffplattenstärke bestimmt.The Plattpnraaterial for the production of the mold plates is either by cutting with the desired thickness of solidly eaten foam blocks or by producing foam in layers between two circumferential bands generated, the distance between them determines the thickness of the foam panels.
Der Polyurethan-Schaumstoff besteht aus zwei Bestandteilen bzw. Komponenten und zwar :The polyurethane foam consists of two parts or components, namely:
Bestandteil 1 : 1OO Gewichtsteile Polyätherharz( wie z.B. dasComponent 1: 100 parts by weight of polyether resin ( such as the
von der Firma Bayer AG vertriebene Desmophen 1O77 A,Desmophen 1O77 A sold by Bayer AG,
O,2 bis 1 Gewichtsteil Trimerisierungsaktovator
zur Bildung von Polyisozyanurat, wie z.B.
der von der Firma Bayer vertriebene Aktivator 1O26,
O,5 bis 2 Gewichtsteile Wasser,0.2 to 1 part by weight of trimerization activator for the formation of polyisocyanurate, such as activator 1026 sold by Bayer,
0.5 to 2 parts by weight of water,
Bestandteil 2 : 230 Gewichtsteile Methylphenyldiisozyanat,Component 2: 230 parts by weight of methylphenyl diisocyanate,
wie z«B, das von der Firma Bayer AG vertriebene Desmodur 1844 oder 44 V 2O.such as, for example, the one sold by Bayer AG Desmodur 1844 or 44 V 2O.
Dabei sind aber der Gestehungspreis und das Gewicht der bekannten Platten hoch. Zur Herstellung nämlich einer 8 mmBut the cost price and the weight of the known plates are high. To produce an 8 mm
starken Formplatte von 2 m , deren Stabilität ihr selbsttragende Eigenschaften verleiht, so dass die Platte sich zur Herstellung eines PKW-Dachs eignet, muss die Ausgangsplatte eine Stärke von 4O mm und eine Dichte von 8O g/l besitzen. Nach der Formung und dem Zusammendrücken auf eine Stärke vonstrong molded panel of 2 m, the stability of which gives it self-supporting properties, so that the panel can be used For the production of a car roof, the base plate must have a thickness of 40 mm and a density of 80 g / l. After forming and compressing to a thickness of
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2
8 mm wiegt bei einer Fläche von 2 m eine solche Platte 6,400 kg, so dass es sich nicht mehr um ein Niedrigpreisprodukt
handelt.2
8 mm with an area of 2 m, such a plate weighs 6.400 kg, so it is no longer a low-priced product.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu beseitigen.The present invention is based on the object of eliminating these disadvantages.
Zu diesem Zweck hat die Erfindung ein Verfahren zur Herstellung unter Verformung in einer Presse bei hoher Temperatur von verstärkten Polyurethan-Formschaumplatten zum Gegenstand, das gekennzeichnet ist, dass man im wesentlichen eine dünne Schaumstoffplatte beidseitig mit einer Verstärkungs- bzw. Versteifungsfolie versieht, wobei die Platte und/oder die Folien mit einem Verbindungsmittel beschichtet iverden, dass marin die Platte samt Folien in einen Heizschrank oder zwischen zwei Heizplatten, während ein bis zwei Minuten bei einer Temperatur von 170 bis 220°C unterbringt, dass man sodann das sich ergebende zusammengesetzte Gebilde von seiner Hitzequelle entfernt und in einem Zeitraum von 3 bis IO Sekunden, im Durchschnitt 5 Sekunden, zwischen die Platten einer mit einem Stempel und einer Matrize ausgestatteten Presse legt, dass man das zusammengesetzte Gebilde 3O Sekunden lang bis zu seiner Abkühlung presst und dass man die Presse öffnet und die endgültige Formplatte herausnimmt.For this purpose, the invention relates to a process for the production of reinforced polyurethane molded foam panels with deformation in a press at high temperature, which is characterized in that essentially a thin foam panel is provided on both sides with a reinforcing or stiffening film, the panel and / or the foils are coated with a bonding agent so that the plate and foils are placed in a heating cabinet or between two heating plates for one to two minutes at a temperature of 170 to 220 ° C, and then the resulting composite structure of removed from its heat source and placed between the plates of a press equipped with a punch and a die for a period of 3 to 10 seconds, on average 5 seconds, that the assembled structure is pressed for 30 seconds until it cools and that the press is used opens and takes out the final mold plate.
Gemäss einem Merkmal der Erfindung ist das Verbindungsmittel ein irreversibles Polyurethan-Elastomer . das zwei polymerisierbar Bestandteile enthält.According to one feature of the invention, the connecting means is an irreversible polyurethane elastomer. which contains two polymerizable components.
Gemäss einem noch weiteren Merkmal der Erfindung dient das Verbindungsmittel nach seiner Aktivierung durch die Hitze zur Schmierung der Verstärkungsfolien entlang der Schaumplatte. According to yet another feature of the invention, the connecting means is used after it has been activated by the heat to lubricate the reinforcement foils along the foam board.
Ebenfalls gemäss einem weiteren Merkmal der Erfindung erfolgtAlso takes place according to a further feature of the invention
909884/076«909884/076 «
eine Polymerisation des Verbindungsmittel auch nach dem Schmelzen durch die Erhitzung, wobei die· Polymerisation weitere 48 Stunden andauert, so dass der Vorgang auch dann irreversibel bzw. nicht umkehrbar bleibt, selbst wenn man die Formplatte einer Temperatur von 15O°C aussetzt.a polymerization of the connecting agent even after the Melting by heating, with the · polymerization lasts another 48 hours, so that the process remains irreversible or irreversible, even if one exposing the mold plate to a temperature of 150 ° C.
Gemäss einem Erfindungsmerkmal weist das das Verbindungsmittel bildende Polyurethan-Elastomer bevorzugt die folgende Zusammensetzung auf :According to one feature of the invention, this has the connecting means forming polyurethane elastomer preferably has the following composition:
Bestandteil 1 : 1OO Gewichtsteile Einkomponenten-rPolyurethan wie z.B. das von der Firma Bayer AG vertriebene Dpsmocoll oder das von der Firma Witco vertriebene Witcobond 524O ;Component 1: 100 parts by weight of one-component polyurethane such as the Dpsmocoll sold by Bayer AG or that by Witco sold Witcobond 524O;
Bestandteil 2 : 5 bis 10 Gewichtsteile Isozyanathärter, wieIngredient 2: 5 to 10 parts by weight isocyanate hardener, such as
z.B. das von der Firma Witco vertriebene Witco XB.E.g. the Witco XB sold by Witco.
Die Erfindung bezieht sich ebenfalls auf eine durch das Verfahren erzeugte Formplatte, dadurch gekennzeichnet, dass sie im wesentlichen aus einer dünnen Platte aus Polyurethan-.Schaumstoff, und aus zwei Verstärkungs- bzx. Versteifungsfolien die beidseitig unter Verwendung eines Verbindungsmittels in Form von irreversiblen Polyurethan-Elastomeren mit der Platte verbunden sind besteht.The invention also relates to a mold plate produced by the method, characterized in that it essentially consists of a thin sheet of polyurethane foam, and from two reinforcement bzx. Stiffening foils on both sides using a connecting means in the form of irreversible polyurethane elastomers are connected to the plate.
Zum besseren Verständnis der Erfindung folgt nun die Beschreibung einer bevorzugten als Beispiel angegebenen, den Schutzumfang nicht einschränkenden Ausführungsform anhand der schematischen Zeichnungen. Es zeigen :For a better understanding of the invention there now follows the description of a preferred, given as an example, the scope of protection non-limiting embodiment with reference to the schematic drawings. Show it :
Figuren 1 bis 3 verschiedene Phasen des erfindungsgemässenFigures 1 to 3 different phases of the invention
Herstellungsverfahrens und Figur 4 einen Schnitt durch eine erfindungsgemässeManufacturing method and FIG. 4 shows a section through an inventive
909884/0789909884/0789
Platte.Plate.
Eine Polyurethan-Schaumplatte und/oder zwei VerStärkungs- bzw. Versteifungsfolien werden zuerst mit einem Polyurethan-Elastomer beschichtet, das aus zwei Bestandteilen besteht und irreversibel ist. Zu diesem Zweck werden die zwei Bestandteile in einem Gefäss miteinander vermischt, das mit einer Spritzpistole verbunden ist, so dass ein Aufspritzen des Polyurethan-Elastomergemisches auf die Platte und/oder die Versteifungsfolien erfolgen kann. Bei Umgebungstemperatur ist die Trocknung dieses Gemisches innerhalb von zwei oder drei Stunden zu Ende, wobei jedoch die Trocknung innerhalb von einigen Minuten durch Heissluft, Infrarot-Erhitzung oder dergleichen oder innerhalb eines Heizschrankes möglich ist.A polyurethane foam sheet and / or two reinforcing or stiffening foils are first coated with a polyurethane elastomer, which consists of two components and is irreversible. For this purpose, the two components are mixed together in a vessel that is connected to a spray gun so that the polyurethane-elastomer mixture can be sprayed onto the plate and / or the stiffening foils. At ambient temperature, the drying of this mixture is complete within two or three hours, although drying is possible within a few minutes by hot air, infrared heating or the like or inside a heating cabinet.
Wie der Figur 1 zu entnehmen ist, wird die Schaumstoffplatte 1 sandwichartig beidseitig mit den zwei Folien 2 bedeckt, wonach das Gebilde zwischen zwei Heizplatten 3 oder in einen Heizschrank gelegt wird, so dass die Temperatur auf 17O bis 22O°C erhöht wird. Nach dem Erhitzen ivährend 1 bis 2 Minuten erxveicht der Schaumstoff und ivird die Elastomerebeschichtung flüssig, wobei ihre Polymerisation dann durch die Hitze ausgelöst wird. Das zusammengesetzte Gebilde wird danach von den Heizplatten bzw. aus dem Heizschrank entfernt und zwischen die zwei Platten einer mit einem Stempel 4 und einer Matrize 5 ausgestatteten Presse gelegt, wobei der Zeitabstand zwischen dem Entfernen aus der Heizapparatur und dem Einführen in die Presse 3 bis IO Sekunden, im Durchschnitt 5 Sekunden, beträgt. In der Presse erfolgt ein Formen durch Ziehen (Figur 2).As can be seen from FIG. 1, the foam sheet 1 is covered on both sides with the two foils 2 in a sandwich-like manner, after which the structure is placed between two heating plates 3 or in a heating cabinet so that the temperature is increased to 170 to 220 ° C. After heating for 1 to 2 minutes, the foam softens and the elastomer coating becomes liquid, the polymerization then being initiated by the heat. The assembled structure is then removed from the heating plates or from the heating cabinet and placed between the two plates of a press equipped with a punch 4 and a die 5, the time interval between removal from the heating apparatus and introduction into the press 3 to 10 Seconds, on average 5 seconds. Shaping takes place in the press by drawing (FIG. 2).
Die Presse wird alsdann geschlossen und beim Ziehvorgang gleiten die Versteifungsfolien entlang der Fläche der Schaumplatte, ohne zu reissen, wobei sie sich ohne SpannungThe press is then closed and during the pulling process the stiffening sheets slide along the surface of the foam sheet without tearing, whereby they move without tension
90988Ä/07S990988Ä / 07S9
am die gesamte Form der Platte anschmiegen können, weil das flüssig gewordene Polyurethan-Elastomer als Schmiermittel wirkt (Figur 3). Das Gebilde wird 30 Sekunden lang zwischen den Platten der Presse unter Druck gehalten, wobei dieser Zeitraum für die Abkühlung ausreicht, die durch einen Wasserumlauf innerhalb des Stempels 4 und der Matrize 5 unterstützt wird. Nach der Abkühlung wird die Presse geöffnet, um die Formplatte 6 zu entfernen, die eine dauerhafte Form und eine grosse Stabilität besitzt, weil die Versteifungsfolien sehr fest mit der Schaumplatte verbunden sind und weil das gebildete Elastomer nachdem es als Schmiermittel gewirkt hat, im ausgehärteten Zustand das Gebilde zusammenbindet.can cling to the entire shape of the plate because the liquid polyurethane elastomer acts as a lubricant (Figure 3). The formation lasts for 30 seconds kept under pressure between the plates of the press, this period of time being sufficient for the cooling to be achieved by a Water circulation within the punch 4 and the die 5 is supported. After cooling down the press opened to remove the mold plate 6, which has a permanent shape and great stability because the stiffening foils are very firmly connected to the foam sheet and because the elastomer formed after it has acted as a lubricant, binds the structure together in the hardened state.
Nach dom Entfernen der Platte 6 aus der Presse dauert der chemische Prozess der Polymerisation noch weitere 48 Stunden an, bis er vollständig und irreversibel ist, so dass, auch wenn die Platte einer Temperatur von 15O°C ausgesetzt wird, das Elastomer nicht wieder flüssig wird.After the plate 6 has been removed from the press, it lasts chemical process of polymerization for another 48 hours until it is complete and irreversible, so that, even if the plate is exposed to a temperature of 150 ° C, the elastomer does not become liquid again.
Die Versteifungsfolien 2 bestehen aus Papier, insbesondere Kraftpapier, aus einem Glasfaservlies, aus einem nichtgewebten Stoff, aus einem Gewebe oder aus einem Schichtstoff oder dergleichen.The stiffening foils 2 consist of paper, in particular Kraft paper, a glass fiber fleece, a non-woven one Fabric, a woven fabric or a laminate or the like.
Die Steifheit oder Stabilität der Formplatte 6 wird durch die Folien 2 erzeugt, die beim Formen mit der Platte 1 verklebt werden. Während des Formens wird das irreversible Elastomer durch das Erhitzen geschmolzen, um eine Gleitbewegung der Folien 2 entlang der Oberflächen der Platte 1 beim Tiefziehen zu ermöglichen, so dass die Folien 2 die Änderungen im Profil des Schaumstoffs annehmen, die durch das Presswerkzeug zustande gebracht werden. Bei dieser entsprechenden Änderung in der Form der Folien findet kein Reissen und kein unerwünschtes Spannen des Werkstoffs statt.The rigidity or stability of the mold plate 6 is generated by the foils 2, which are formed with the plate 1 be glued. During molding, the irreversible elastomer is melted by the heating to create a sliding movement of the foils 2 along the surfaces of the plate 1 during deep drawing, so that the foils 2 the changes assume in the profile of the foam, which are brought about by the pressing tool. With this corresponding There is no change in the shape of the foils, no tearing and no undesirable tensioning of the material.
909884/0769909884/0769
Unter Verwendung der Erfindung ist es daher z.B. möglich,Using the invention it is therefore possible, for example, to
eine selbsttragende Formplatte mit einer Grosse von 2 m und einem Gewicht von 1,500 kg aus einer Ausgangsschaumplatte herzustellen, die 15 mm stark ist und deren Dichte 5O g/l beträgt.a self-supporting shaped plate with a size of 2 m and a weight of 1,500 kg from a starting foam board that is 15 mm thick and its density 5O g / l.
Es ist offensichtlich, dass die vorliegende Erfindung nicht auf das beschriebene und in den Zeichnungen gezeigte Beispiel beschränkt ist. Abänderungen sind möglich, die insbesondere die Zusammensetzung des Verbindungsmittels betreffen, ohne deswegen den Schutzumfang der Erfindung zu verlassen.Obviously, the present invention is not to the example described and shown in the drawings is limited. Changes are possible, in particular relating to the composition of the connecting means, without therefore to leave the scope of the invention.
[VV. Mav.c-.her) Patentanwalt[VV. Mav.c-.her) patent attorney
9098847078·9098847078
LeerseiteBlank page
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7821329A FR2430310A1 (en) | 1978-07-07 | 1978-07-07 | METHOD OF MANUFACTURING, BY HIGH-TEMPERATURE PRESSURE DEFORMATION, MOLTEN AND REINFORCED POLYURETHANE FOAM PANELS, AND PANEL OBTAINED THEREBY |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2927360A1 true DE2927360A1 (en) | 1980-01-24 |
Family
ID=9210871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792927360 Withdrawn DE2927360A1 (en) | 1978-07-07 | 1979-07-06 | METHOD FOR PRODUCING UNDER DEFORMING IN A PRESS AT HIGH TEMPERATURE OF REINFORCED POLYURETHANE MOLDING FOAM PANELS AND PLATES PRODUCED BY THE PROCESS |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE877464A (en) |
DE (1) | DE2927360A1 (en) |
ES (1) | ES482286A1 (en) |
FR (1) | FR2430310A1 (en) |
GB (1) | GB2028714B (en) |
IT (1) | IT1124119B (en) |
NL (1) | NL7905316A (en) |
PT (1) | PT69859A (en) |
SE (1) | SE445985B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033701A1 (en) * | 2009-07-16 | 2011-01-27 | Premium Aerotec Gmbh | Method for heating thermoplastic boards by means of heat conduction |
DE102015007920A1 (en) * | 2015-06-20 | 2016-12-22 | Daimler Ag | Method and tool for producing a composite component for a vehicle |
WO2020074310A3 (en) * | 2018-10-12 | 2020-06-11 | BSH Hausgeräte GmbH | Method and household appliance |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3138442C2 (en) * | 1981-09-24 | 1984-01-26 | Günter Hans 1000 Berlin Kiss | Arrangement for lamination of molded parts |
DE3239065C2 (en) * | 1982-10-22 | 1984-08-30 | Peguform-Werke GmbH, 7805 Bötzingen | Process for the production of textile-laminated molded parts |
US4698252A (en) * | 1984-04-26 | 1987-10-06 | Colamco, Inc. | Composite foam articles and method for fabricating such articles |
GB8520657D0 (en) * | 1985-08-17 | 1985-09-25 | Ac Scotland Plc | Panel |
US4741951A (en) * | 1987-01-29 | 1988-05-03 | Reeves Bros., Inc. | Method for forming thermoformable polyurethane foam articles |
IE60537B1 (en) * | 1988-02-17 | 1994-07-27 | H P Chemie Pelzer Res & Dev | A moulding, especially for building into motor vehicles |
GB2521348A (en) * | 2013-12-04 | 2015-06-24 | Nathan Lewis | Automotive water shedder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD124368A5 (en) * | 1975-02-05 | 1977-02-16 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE575494A (en) * | 1958-02-11 | 1959-05-29 | Lonza Usines Electr Et Chim Sa | Conformed laminate plate. |
GB1080176A (en) * | 1964-02-19 | 1967-08-23 | Monsanto Co | Improvements relating to the manufacture and moulding of laminated articles |
-
1978
- 1978-07-07 FR FR7821329A patent/FR2430310A1/en active Granted
-
1979
- 1979-07-02 GB GB7922972A patent/GB2028714B/en not_active Expired
- 1979-07-02 PT PT69859A patent/PT69859A/en unknown
- 1979-07-03 IT IT12659/79A patent/IT1124119B/en active
- 1979-07-04 BE BE2/57930A patent/BE877464A/en not_active IP Right Cessation
- 1979-07-05 SE SE7905895A patent/SE445985B/en not_active IP Right Cessation
- 1979-07-06 ES ES482286A patent/ES482286A1/en not_active Expired
- 1979-07-06 NL NL7905316A patent/NL7905316A/en not_active Application Discontinuation
- 1979-07-06 DE DE19792927360 patent/DE2927360A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD124368A5 (en) * | 1975-02-05 | 1977-02-16 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033701A1 (en) * | 2009-07-16 | 2011-01-27 | Premium Aerotec Gmbh | Method for heating thermoplastic boards by means of heat conduction |
DE102015007920A1 (en) * | 2015-06-20 | 2016-12-22 | Daimler Ag | Method and tool for producing a composite component for a vehicle |
WO2020074310A3 (en) * | 2018-10-12 | 2020-06-11 | BSH Hausgeräte GmbH | Method and household appliance |
Also Published As
Publication number | Publication date |
---|---|
SE445985B (en) | 1986-08-04 |
GB2028714B (en) | 1982-07-21 |
PT69859A (en) | 1979-08-01 |
SE7905895L (en) | 1980-01-08 |
NL7905316A (en) | 1980-01-09 |
IT7912659A0 (en) | 1979-07-03 |
FR2430310A1 (en) | 1980-02-01 |
ES482286A1 (en) | 1980-08-16 |
GB2028714A (en) | 1980-03-12 |
BE877464A (en) | 1979-11-05 |
IT1124119B (en) | 1986-05-07 |
FR2430310B1 (en) | 1981-06-26 |
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