DE8119148U1 - HEAT-INSULATING PANEL - Google Patents

Description

Description:

The invention relates to a heat-insulating plate for the formation of a heat-insulating layer in underfloor heating, with a plate body made of foamed plastic, in particular made of polyurethane, and a lamination on at least one side of the plate.

In the manufacture of underfloor heating panels of this type are laid out side by side, so that a coherent Insulating layer is created. On this insulating layer, heating pipes are laid, which after they have been laid with IQ flowable screed compound can be poured over. So that the heating pipes can be fixed to the panels according to a desired laying pattern until they are covered with screed and this mass has hardened, various aids are known.

j 5 According to a known method (DE-OS 28 49 805) are used for Fixation of the heating tubes used holder, which is provided with a barbed insert part and a hook-shaped have curved holding part. The plug-in part is inserted into the panel body, with the holding part at the same time is placed over the heating pipe. In order to give the holder a sufficiently secure hold in the plates, these are Equipped with a network that has such a mesh size that the insertion part by widening the mesh

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ί the net can be pushed through, but cannot be pulled out

it is ensured that the barbs come to rest on the strands of the net. The network can be used in

) Be arranged inside the plate body, as well as on

Ϊ 5 its surface. In the latter case, the attachment done by gluing or welding. A net arranged inside is created by foaming the net into the

'; ■■ Plate body introduced.

Panels made of polyurethane "10 have particularly good thermal insulation Foam. However, such panels cannot come into direct contact with EstrichmasFe and must therefore be provided with a lamination. Such a lamination can also help reduce the heat emanating from the heating pipes Distribute heat evenly over the surface of the floor if the lining is made of a material that conducts heat well or contains such a material, e.g. aluminum foil. It is also known (DE-GMS 77 09 396), thin Glue aluminum plates onto a plate body and anchor the holder to this aluminum plate by making the Holders can be inserted into pre-punched holes in the aluminum plate. Such plates are expensive because the aluminum sheets are perforated Need to become. In addition, holders cannot be inserted at any point, but only at the points which have holes.

In the manufacture of the above-described known Plates, special operations are required in order to attach the anchoring means, e.g. a net or an aluminum plate, to the plate body. The invention is based on a plate of the type mentioned at the beginning Kind to train so that anchoring means for holders can be made without special operations.

This object is achieved according to the invention in that the lamination is designed as an anchoring lamination

- Contains 7 and a layer of fibers (fiber layer).

In the case of a plate designed in this way, the one that is required anyway The lamination is also used as an anchoring means. It has been shown that this is a layer of fibers within the lamination is sufficient. The lamination is built up on the panel body before it is applied, so that only a single film, which in turn consists of several layers, is to be attached to the panel body.

The anchoring cladding is preferably arranged on the underside of the plate. This will make the safe Holding the holder to a particular degree is ensured, since the lamination does not tear from the plate body can lead to the fact that the heating pipes can lift off the plate body.

As a rule, both sides of the plate are laminated according to claim 3, whereby it is only expedient for reasons of economy to design one of the linings as an anchoring lamination with a fiber layer, although in principle both also Laminations can contain a fiber layer.

The fiber layers can be designed in different ways. Examples of this are given in claims 4 and 5. The use of a fleece according to claim 4 is particularly advantageous, also for economic reasons A fiber material as specified in claim 6 is well suited for the fiber layer.

According to claim 7, the lamination can contain a thin aluminum foil, which provides a particularly effective seal is achieved and also a distribution of the heat emanating from the heating pipes.

According to claim 8, the fiber layer can be arranged on the visible surface of the anchoring lamination. Of the The overall structure of the lamination can then be designed according to claim 9. However, the fiber layer can also be inside the anchoring lamination be arranged (claim 10). For this case there is an overall structure of the anchoring lamination according to claim 11 advantageous. With both variants (fiber layer on the surface of the anchoring lamination or fiber layer within the anchoring lamination) can be arranged on the other side of the plate Lamination be the same, z. B. as stated in claim 12. For clarification it should be noted that that an anchoring lamination is also a protective lamination, so that this designation in Claim 12 does not mean that only the lamination which is not used for anchoring has a protective effect.

A particularly cheap production can be achieved with a continuous process, with which initially long webs a lamination can be produced. These prefabricated linings are continuously passed through a foaming channel directed. Be at the end of the foaming channel panels of the desired format are produced by cutting off the emerging tape.

The heat insulating plate can also be only one layer of an entire plate. For example, such a Plate can be glued to a plate of the same thickness or different thicknesses, the two plates are shifted a little diagonally against each other, so that the edges of the finished plate are stepped Have cross-section.

Exemplary embodiments of the invention are shown in the drawing. Show it:

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Pig. 1 a schematic representation of a plant for the production of heat-insulating panels,

2 shows the layer structure of a plate according to a first embodiment of the invention and

3 shows the layer structure of a plate according to a <. second embodiment of the invention.

The plate according to FIG. 2, denoted as a whole by P ₁ , has a plate body 1 which consists of foamed polyurethane. There are laminations on both flat sides of the plate body 1, namely a protective covering 2 on the upper side and an anchoring covering 3 on the underside.

The anchoring lamination 3 consists of a total of five layers. The top layer 4 is a flame-retardant paint, which consists essentially of modified PVC. An aluminum foil 5 with a thickness of approx. 0.009 mm is located below the lacquer layer 4. Below the aluminum foil 5 there is a fleece 6 which has a weight per unit area of 85 g / m ² and consists of polyester fibers. Between the layers 5 and 6, a thin layer 7 made of polyethylene is arranged, which serves only as a connecting means between the layers 5 and 6. A further thin layer 8 made of polyethylene is arranged underneath the fleece layer 6 and establishes the connection with the panel body 1.

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The protective lamination 2 in turn has a surface layer Made of a flame-retardant lacquer, which is the same as the lacquer of layer 4. Located below this lacquer an aluminum foil 10, the thickness of which is again 0.009 mm. Below the aluminum layer is a

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- 10 layer 11 made of so-called Kraft paper arranged.

Between the layers 10 and 11 is again as Connecting layer a thin film 12 made of polyethylene. Between the Kraft paper 11 and the plate body 1 is a further polyethylene film 13 is arranged, with which the connection to the panel body 1 is made. The polyethylene foils 7, 8 and 12, 13 are comparatively great slim. A suitable thickness is, for example, 0.03 mm.

The plate designated as a whole by P "according to FIG. 3 has

^ jQ turn a plate body 1 made of polyurethane, a protective lamination 2 on its top and an anchoring lamination 14 on its underside. The protective lining 2 is embodied in the same way as the protective lining 2 on the plate P ₁ . The anchoring lamination 14, however, has the

.jtj structure described below. The top layer 15 is a fleece which can have the same properties as the fleece layer 6 on the plate P1. Below the layer 15 there is an aluminum foil 16, which in turn can have a thickness of 0.009 mm. Below the aluminum

2Q slide 16 is a layer 17 of Kraft paper, the can be of the same nature as the kraft paper in the protective lamination 2. Here, too, the layers are connected to one another by thin polyethylene foils. To connect the Fleece 15 with the aluminum foil 16 is a PolySthylen-

2 ^ foil 18- for connecting the aluminum foil 16 with the kraft paper 17 a polyethylene film 19 and to connect the lamination as a whole to the panel body 1 a polyethylene film 20. These polyethylene foils can in turn have a thickness of 0.03 mm.

Continuous manufacture of the panels is carried out below described with reference to FIG. First of all, the cladding

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stanchions made. It is assumed that in the system designated as a whole ξ with A, panels with a layer structure I

are to be produced according to FIG. First, the j | Laminations 2 and 3 with all their layers produced, | ^! thus also with their lowest layers 8, 13 made of polyethylene. f: J The lamination 2 is stored on a coil 21 with a great length. The anchoring lamination 3 is also prefabricated in great length and stored on a coil 22. The coils 21 and 22 are used in the system A. The 10 lamination sheets 2, 3 are drawn into a foaming channel 23, the anchoring lamination 3 ί i

on the floor 23a and the protective lining 2 on the ceiling 23b »i

of the foaming channel 3 is applied. In front of the entrance to the; j Curing channel 23, the width of which is perpendicular to the character

If the plane can be equal to the length of one side of the plate, activated polyurethane 24 is applied to the lamination 3. The two inactive components, namely polyol and isocyanate, are connected to one another via lines 25 and 26 Mixing head 27 supplied. When it is brought together in the mixing head, the activated mass 24 is created. The foaming the mass takes place mainly in the relatively long hardening channel. The channel length can e.g. i.n the Of the order of 20 meters. The channel walls are made rigid so that they are under the foaming pressure not be deformed. A dimensionally stable strip 28 emerges from the channel end 23c and has a width which is equal to the length of one side of the plate. From this strip lengths are cut that are equal to the length of a plate In general, the panels have dimensions of 1,000 χ 1,000 mm.

A plate according to FIG. 3 is produced in the same way, only the anchoring lamination 14 to be prefabricated has a slightly different structure.

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When processing the panels, holders are pushed through the entire panel, piercing the protective linings 2, until they have also _{pierced the fleece layer 6 (for panel P 1} ) or 15 (for panel P ~) on the underside of the panel. Barbs on the plates find a secure hold on the fleece layers 6 or 15, preventing the holder from being pulled out. The holders can be inserted at any point on the plate.

Claims (12)

Expectations: 1. Heat insulating plate for the formation of a heat insulating Layer of underfloor heating, with a plate body made of foamed plastic, in particular made of Polyurethane, and a lamination on at least one side of the plate, characterized in that the lamination (3; 14) is designed as an anchoring lamination and contains a layer (6; 15) made of fibers (fiber layer). 2. Heat insulating layer according to claim 1, characterized in that that the anchoring lamination (3; 14) is arranged on the underside of the plate. 3. Heat insulating plate according to claim 1, characterized in that that both sides of the board are laminated, but only one (3; 14) of the laminations (2, 3; 2, 14) is designed as an anchoring lamination and contains a fiber layer (6; 15). «■ ■« trr> « φ * · 4. Thermally insulating plate according to one of the preceding Claims, characterized in that the fiber layer (6, 15) is a fleece. 5. Heat insulating plate according to one of claims 1 to 3, characterized in that the fiber layer is a fabric is. 6. Heat insulating plate according to one of the preceding claims, characterized in that the fibers are made of plastic consist, preferably of polyester or of IQ polypropylene, the specific weight per unit area of the fiber layer being in the range from 50 g / m ² to 130 g / m ² , preferably around 85 g / m ² . 7. Heat insulating plate according to one of the preceding claims, characterized in that the lamination ■] 5 (2, 3, 14) one consisting of a thin aluminum foil Layer (10, 5, 16), for example with a thickness of approx. 0.009 mm. 8. Heat insulating plate according to one of the preceding claims, characterized in that the fiber layer 2Q (15) on the visible surface of the anchoring lamination (14) is arranged (Fig. 3). 9. Heat-insulating plate according to claim 8, characterized in that the anchoring lamination (14) below the fiber layer (15) is an aluminum foil (16) and below the aluminum foil a layer (17) of kraft paper, preferably with a weight per unit area of 80 g / m ² to 200 g / m ² , preferably of about 120 g / m ² , these layers being by adhesive layers or ■ S thin intermediate films (18, 19) made of polyethylene, preferably ι with a thickness in the range of 0.02 mm to 0.04 mm, preferred · "; as mm of about 0.03 are interconnected and also _i; for connecting the lamination (14) to the panel body (1) I t- such an adhesive layer or polyethylene film provided m is. ) 10. Heat insulating plate according to one of claims 1 to 6, characterized in that the 'fiber layer (6) within the anchoring lamination (3) is arranged (Fig. 2). . "_ 11. Heat insulating plate according to claim 10, characterized in that TO ji indicates that a layer of flame-retardant paint, for example a paint made of modified PVC, is arranged on the surface of the anchoring lamination, preferably with '. a weight per unit area in the range from 1.5 gr / m ² to 3 gr / m ² , preferably approx. 2 g / m ² , an aluminum foil below the lacquer layer and the fiber layer (6) below the aluminum foil, the fiber layer (5) and the aluminum foil are connected to one another by an adhesive layer or a thin film of polyethylene, preferably with a thickness in the range from 0.02 to 0.04 mm, preferably from about 0.03 mm, and also to connect the lamination (3) to the plate body (1) such an adhesive or such a polyethylene film is provided. 12. Heat insulating plate according to one of claims 3 to 11, characterized in that the lamination (2) (protective lamination), which is not designed as an anchoring lamination (3; 14), has a layer (9) of flame-retardant lacquer on the surface, e.g. a lacquer made of modified PVC, preferably with a weight per unit area of 1.5 g / m ² to 3 g / m ² , preferably from approx. 2 g / m ² , including an aluminum foil (10) and underneath a layer (11) of kraft paper, preferably with a basis weight in the range of 80 g / m ¹ to 200 gr / m ² , preferably of about 120 gr / m ^{2 is} arranged, the aluminum foil and the kraft paper by an adhesive layer or a thin intermediate film of polyethylene with a thickness im Range from 0.02 to 0.04 mm, preferably from about 0.03 mm is arranged and also for connecting the protective lining (2) to the plate body (1) such an adhesive or a such polyethylene film (13) is provided.