DE19758700C2 - Insulating element and process for its manufacture - Google Patents

Abstract

The invention relates to a method for producing a product from mineral fibers.

Description

The invention relates to insulation element and a method for its Production.

DD 248 934 A3 discloses a method and an apparatus for the production of products with predominantly vertical oriented fiber orientation of the mineral wool products at Performing the lamination of mineral fiber fleeces. The Solution of this patent ensures the production of Products whose grain direction is related to the major axes of the product is upright. However, it allows  only the manufacture of products whose fiber flow without Interruption uniform, oriented vertically, in relation to the major axes of the product. Another A disadvantage of the known solution is that it is Element made along the laminated non-woven fabric only of its slats directed transversely to the longitudinal center axis has great flexural rigidity, but in the direction of its Longitudinal center axis a reduced resistance to bending having.

DD 297 197 B5 describes a method and an apparatus for the formation of mineral fiber fleeces, in which the fibers for Achievement determines the quality characteristics of the end products Binders are added and the formation of nonwoven in one continuous process takes place.

A disadvantage of these solutions is that the Mineral fiber products related to the major central axes of the Mineral fiber product, only one horizontally directed Have grain flow.

WO 94/16163 A1 describes a mineral fiber mat with a laminated layer. Within this layer are the Slats structured identically.

The invention is based, with an insulation element improved strength properties as well continuous process for its manufacture to deliver.  

This task is solved by a demanding Insulating element and a sophisticated process.

The differences in the layers arise in one different density, strength and type of material represents.

The laminated layer can be a vertically oriented one Have grain flow. Related to the extension of their large areas, it is made of perpendicular to it segment-shaped, uniform in the layer plane repeating, web-like layer groups, whose Material structure and composition are not designed in the same way has been.

The product, initially in one layer, combines in groups of one vertically positioned in the course of the fiber different material structures with a web-like, vertical layer structure, predominantly web-like Layers of a vertical grain  with web-like layers of differently structured materials are connected and form a flat insulation element. The Layers run, advantageously formed, transverse to Longitudinal central axis, so that a web-like, in groups repetitive, vertical layer formation is characterized.

An insulation element of this structure has not yet been used known advantages. The insertion of web-like layers with a non-flammable material of high fire protection classes, such as glass fibers, glass fiber fleece u. Ä. Material, between Layers of highly compressed or less compressed materials cause the element in addition to high dimensional stability and above average good workability a variable Wide range of applications and with excellent physical Properties. The web groups of the perpendicular Ridges can extend from 2 to n times in the Sequence repeating groups of a non-similar Structure of the material and its composition. You can do this in repeating groups, within the framework the webs, different strengths and consistencies have, with webs with great strength, in addition to webs with low strength are formed and the element through the High strength bars, large  Compressive strength, great dimensional stability, reduced Resetting behavior. Here are web training with low strength, a large resilience of their Material in the direction of the major central axis of the element, associated with light weight, which in turn has the advantage that in addition to the reduced reset behavior of layers with high density and strength the element in Framework of consciously assigned layers of reduced strength and dimensional stability, adaptability to building conditions in the Detail can be assigned that over the previously known Dimension introduced insulation elements goes beyond. So that's it possible on the surfaces of such structures that with Elements of this version have been manufactured, textile Apply surface coatings that do not pass through thermal or meteorological influences tear, because that Element now the stretching behavior of the coating element can adjust.

The web-like layers with the vertically oriented Grain flow and with different web tigers Layer groups are formed, can be 90 ° to their large center axes twisted, with their large surfaces are arranged and connected to each other. At this Execution already subsumes the advantages of shown  Training variants. Because now advantageously the Layer groups with their different layer structure, the webs formed therein are uneven in strength and density are cross-lattice superimposed, result the beneficial effects that overlap in the area located bars with great strength, continuous lines of force transverse to the major central axes and continuous along them Force lines with high fatigue strength as well as high bending and torsional strength of the flat elements become. It follows that in the layers with unequal Layer structure the webs thus formed with uneven Strength and density in the area of superimposed webs with lower density, continuous lines of force with lower Strength, as well as lower density of a high Resilience and great insulation are formed.

The conscious integration of materials with high Fire prevention classes allow the universal applicability of the Elements not only in construction, but also in shipbuilding Vehicle construction u. v. m. to.

The solution according to the invention fulfills the task of incombustible element by incombustible binders and Glue have been used.

The invention finds training in the fact that Process the supplied nonwoven in multiple layers feeding transport device initiated and in the Facility led, a vertex  is moved against. At the vertex, that is fed multi-layer fiber fleece separated into lamellas. The separated slats now form joined ones Layer arrangements of a fleece, the web-like Has lamellar arrangements, the number as well Material composition of the layers corresponding web-like Form lamella groups, which when separated on the support and Removal device are pushed and from there to one uniform, multi-layer element continuously processed.

By means of this method, not just one layer, but several and also different layers in one Mineral fiber product united, continuously manufactured.

The invention is illustrated by the following figures are explained.

Show:

Fig. 1 a polymer produced by an inventive method insulation element having a layered structure of different material groups in a front view,

Fig. 2, the insulating element according to Fig. 1, in a plan view, in section

Fig. 3, the insulating element according to Fig. 1 in a two layer embodiment, in a front view,

Fig. 4, the insulating element according to Fig. 3, in a plan view with a partial half-section illustrating the underlying layer,

Fig. 5, the insulating element according to Fig. 4, partly in section,

Fig. 6 is a possibility for the production of the element according to Fig. 1,

FIG. 7 shows a detail X from FIG. 6, in an enlarged schematic illustration.

Fig. 1 shows a laminated, ausgestaltetes with mainly vertical fiber orientation element a. The element a has groups 21 of vertical web-shaped layers 19 ; 20 , which have a different material composition, the groups 21 being able to repeat themselves cyclically or acyclically. The element a can be formed in different thicknesses and is applied according to the lambing method. DD Patent 246 934 A3, which is to find further explanations according to FIG. 6, is produced accordingly. The groups 21 are in their web-shaped layers 19 ; 20 differently trained. So the webs 19 ; 20 put together differently in their material compositions, the webs 19 being predominantly formed from a fiber material with a vertically oriented, laminated fiber course. The web (s) 20 can be given a different material composition from one another. Thus, it is possible to arrange the material of the webs 20 parallel to the longitudinal course of the webs 19, running horizontally to the surface 2 a, or to use materials that are granular, made of glass fibers or glass fiber fleece. In any case, it has now been possible to imply 21 webs in the individual webs 19 of the web groups, which have a different material design and have an extremely positive influence on the physical behavior of the panels during use, so that the highest possible thermal insulation capacity together with excellent soundproofing properties and excellent fire protection behavior can be achieved.

Figs. 3 shows an insulation element of the type according to the invention, in which two elements a as layers 22; 22 'are brought together at the connection point 2 . The layers a are joined together in such a way that the webs 19 ; 20 come to lie on each other rotated by 90 °. This creates a cross-lattice-like insulating element made up of several but at least two layers.

Fig. 4 shows the arrangement of the webs 19 ; 20 in layers 22 ; 22 '. The half section shows that the lower layer 22 'of web groups 21 , as seen in the plane of the board, and the overlying plate rotates by 90 ° web groups 21 , so that here, as also shown in Fig. 5, a cross-lattice-like structure alternating overlapping web groups of webs 19 vertically oriented fiber course and webs 20 of different material results. This creates an insulation element for absorbing large static loads as well as excellent physical properties such as insulation effect and fire protection behavior. Only the flexural and tensile strength of this element is excellently secured, whereby, viewed in relation to the large areas, in the transverse course of the forces, zones of high pressure absorption are paired with elastic zones and thus an excellent static load-bearing capacity of the element in terms of security against rotation and resilience are ensured ,

The integration of webs 19 ; 20 different material composition in crossing web groups 21 can also be realized in elements whose crossing web course is rotated by 45 ° in the layer structure. This then results in insulation elements with webs 19 , 20 and web groups 21 running diagonally to their major axes. Such an embodiment is particularly useful for square panels that are arranged on horizontal structures. It is clear to the person skilled in the art that knowing the two-layer designs of the insulation board with layer-like webs 19 ; intersecting at 90 ° or at 45 °; 20 and web groups 21 also designs from 2 to n layers 22 ; 22 'are possible. Here it is subject to the technological requirements of practice to require insulation elements with such a layer structure, which can then also be manufactured.

It is according to the insulation elements. Fig. 1 to 5 own that they without supporting aids such as scaffolding, retaining walls and. Ä., Can be used as independent wall elements in buildings. For better location fixation in a building network, e.g. B. in the construction of dry walls, the end and side surfaces can be provided with tongue or groove-like fixing elements, which fix the elements independently in their position or take up mortar or adhesive to the elements in line with the wall on their end and side surfaces connect with each other. The fixing elements are not shown separately in the drawing, since they can be very diverse and are also known to the person skilled in the art.

Fig. 6 shows the preparation of the web-like layer of the insulation element groups 21 a. A roller table consisting of rollers 23 ; 28 ; 29 one of three layers 31 ; 32 ; 33 formed raw fiber fleece fed and compressed according to the known method. A 45 ° upward strand of the raw fiber fleece, with its layers 21 ; 32 ; 33 , now compressed accordingly, a suitable cutting device 25 ; 26 fed, here consisting of a pendulum 26 with a cutting edge 25 , which cuts off the advancing nonwoven fabric and assigns the cut laminated parts of the nonwoven fabric 24 to a support table 30 which is directed at an angle of 90 ° to the ascending part of the roller table. It is self-evident to the person skilled in the art that cutting with the pendulum is not the only way to cut through the nonwoven fabric. Possibilities of cutting by means of a cutting wire up to the laser beam can be used as far as possible. According to this method, as can be seen from the detail x corresponding to FIG. 7, laminated groups 21 with different webs 19 ; 20 provided element components for joining a layer-like insulating element with different material compositions in its web groups fed to the further manufacturing process. As shown in FIG. 7, the known method for producing mineral fiber nonwovens with a predominantly vertically oriented fiber orientation, using laminating mineral fiber nonwovens creatively, laminated, vertically oriented webs 20 of mineral fibers with webs 19 are materials of the same type, but of a different structure, as groups 21 merged, manufactured. The insulation elements of selected thickness and number of layers assembled from these web groups according to the invention have excellent static properties and are recommended for use in different areas, for example in construction, shipbuilding, vehicle construction and steel container construction.

Claims (5)

1. Insulating element with the following features:

• a) at least one layer ( 22 ; 22 ') of mineral wool slats,
• b) the mineral wool slats are formed from groups ( 21 ) of webs ( 19 ; 20 ), wherein
• c) in the groups ( 21 ) webs ( 19 ; 20 ) made of a fiber material, the fibers of which run perpendicular to the large areas of the insulating element, with
• d) differently structured webs ( 19 ; 20 ) are connected.

2. Insulating element according to claim 1, in which a plurality of layers ( 22 ; 22 ') are superimposed in a cross-lattice manner. 3. A method for producing an insulating element according to claim 1 with the following features:

• a) a multi-layer mineral wool fiber fleece ( 31 ; 32 ; 33 ) is fed to an apex via a transport device,
• b) the mineral wool fiber fleece is separated into mineral wool lamellae ( 21 ) at the apex,
• c) the mineral wool slats ( 21 ) are pushed onto a support and removal device arranged at an angle of approximately 90 ° to the transport device,
• d) put together and
• e) processed into an insulation element.

4. The method according to claim 3, wherein the mineral wool fiber fleece ( 31 ; 32 ; 33 ) is supplied to the apex increasing. 5. The method according to claim 4, wherein the mineral wool fiber fleece ( 31 ; 32 ; 33 ) is fed to the apex at an angle of 45 °.