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WO2017198473A1 - Procédé de production d'éléments formant panneaux de bois, éléments formant panneaux de bois er leur utilisation - Google Patents

Procédé de production d'éléments formant panneaux de bois, éléments formant panneaux de bois er leur utilisation Download PDF

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Publication number
WO2017198473A1
WO2017198473A1 PCT/EP2017/060667 EP2017060667W WO2017198473A1 WO 2017198473 A1 WO2017198473 A1 WO 2017198473A1 EP 2017060667 W EP2017060667 W EP 2017060667W WO 2017198473 A1 WO2017198473 A1 WO 2017198473A1
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WO
WIPO (PCT)
Prior art keywords
wood
wood material
layers
layer
binder
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.)
Ceased
Application number
PCT/EP2017/060667
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German (de)
English (en)
Inventor
Johann Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bionic Alpha AG
Original Assignee
Bionic Alpha AG
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Filing date
Publication date
Application filed by Bionic Alpha AG filed Critical Bionic Alpha AG
Publication of WO2017198473A1 publication Critical patent/WO2017198473A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B32B7/03—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 with respect to the orientation of features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/06—Manufacture of central layers; Form of central 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
    • 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
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured 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
    • B32B2250/05—5 or more 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/026—Wood 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • B32B2262/067—Wood 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • 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
    • B32B2479/00—Furniture

Definitions

  • the invention relates to a method for the manufacture of wooden plate elements according to the preamble of claim 1, to a plate element according to the preamble of claim 10 and to the use of plate elements.
  • the present invention is in the field of wood materials. Wood-based materials are mainly used in the construction and furniture industry.
  • the wood used is shredded from logs and then used to build up plate elements.
  • the size and shape of the wood parts used for building are very different.
  • the largest wooden parts used include lumber, especially boards and veneers.
  • Small pieces of wood used are wood chips of various sizes, wood chips, wood wool, wood chips, wood fibers and dusts.
  • the wood parts used can be held with binders or adhesives in the plate-shaped material.
  • other lignocellulosic materials such as cereal straw and hemp shives are used in special materials.
  • the properties of the wooden materials change strongly with the size and shape of the wood particles used. Compared to solid wood, a number of properties change during the comminution of the wood. With increasing digestion or with smaller pieces of wood used, the homogeneity of the material may increase and the mechanical strength of plate elements may decrease. For example, the stability of glued laminated timber is usually higher than that of chipboard.
  • wood-based materials can be distinguished in materials based on solid wood, such as solid wood products or veneer products and in chipboard materials, fiber materials and composite materials.
  • Solid wood includes wood based on boards or sticks. Veneer products are based essentially on thin veneer layers, in particular on peeled veneer.
  • Solid wood and veneer wood materials differ essentially in terms of the thickness of the wood elements used. Accordingly, both as plywood can be formed from fiber directions rotated by 90 ° in each case. glued together layers or be made as a laminated wood with layers with substantially parallel aligned fibers.
  • the density of solid wood products without cavities is in the range of densities used for production
  • the density of the common types of wood is well above 350 kg / m 3 , in particular over 400 kg / m 3 .
  • Board plywoods are mainly used as load-bearing wall, floor, roof or ceiling panels. Glued laminated timber and other board stack constructions in which the fiber orientation of the board layers is predominantly rectified, are mechanically different in the two orthogonal surface expansions.
  • the quality of the wood used, the type of connection and the layer structure have an influence on the strength properties of the material.
  • Wood chipboard materials are made from wood chips, synthetic resin glue and additives under heat and pressure and have densities above 350 kg / m 3 . The wood chips are obtained with hackers and special chipper knives made of solid and sawed wood. Wood chipboard materials are used for many different applications. Accordingly, there are a variety of classification characteristics, by manufacturing, surface, shape, size, structure or purpose.
  • Wood fiber boards are made of wood, sawmill by-products or leftover wood, but also of other fibrous plants such as flax or rapeseed.
  • the structural cohesion is based essentially on the felting of the wood fibers and their natural binding forces, but it is also possible to use adhesives as binders.
  • adhesives as binders.
  • a distinction is made between subgroups.
  • the well-known wood fiber boards which are produced by wet process, include wood fiber insulation boards (HFD) with a density in the range of 270-350 kg / m 3 , medium-hard fiberboard (MB) with a density of 350 to 800 kg / m 3 and hard fiberboard ( HB or HFH) with a density of more than 800 kg / m 3 .
  • HFD wood fiber insulation boards
  • MB medium-hard fiberboard
  • HB or HFH hard fiberboard
  • the densities are equal to or higher than the densities of the wet process plates.
  • EP 1 674 224 B1 and WO 99/22084 A1 describe the production of wood fiber insulating elements, wherein fiber material is applied to a conveyor belt and connected to a fiber mat. The mechanical strength and applicability of these insulating elements are limited and are insufficient for many applications.
  • WO 95/32082 A1 describes a wooden building element with layers bound together, wherein the layers are constructed of boards which each have a grooving on mutually facing main surfaces.
  • the boards of two directly adjoining layers are aligned transversely and diagonally to each other.
  • foreign material in the form of a foam-glue mixture as a filler can be arranged in cavities formed by grooves that are substantially closed off from the outside.
  • lightweight construction elements are known with a lightweight board and one of the lightweight board associated layer of insulation.
  • the lightweight board is composed of layers of boards with parallel grooves in the main surfaces, the grooves of directly adjacent layers by overlapping in raster-shaped areas arranged slot openings to a large connected contiguous cavity, which is disadvantageous for the thermal insulation.
  • wood chips are formed together with a binder to a chip mat, which is held together by the set binder. The use of this insulating material is described only for cavities, in particular between two lightweight panels.
  • the object of the invention is now to find a production method for plate elements, plate elements and uses thereof, which ensure good thermal insulation and optimum mechanical stability and operational capability for the respective use with little effort.
  • the object is achieved by the manufacturing method having the features of claim 1, by plate elements according to claim 10 and by the use of these plate elements according to claim 15.
  • a production method comprises the use of at least two different wood-based materials.
  • a first wood-based material is a layered solid wood having a substantially homogeneous density of more than 350 kg / m 3 .
  • a second wood material is used as a layer with a void fraction, wherein the average density of this layer is less than 270 kg / m 3 .
  • the layers of the first and second wood materials are stacked together with adhesive bonds between the successive layers to form a plate element.
  • At least one layer of the second wood material is arranged between two layers of the first wood material.
  • Each layer of the second wood material extends as a continuous layer in the form originally made with cavities, that is, without separation and reconnection, over the entire area of a simplest plate element.
  • the two large surfaces of the plate element are formed by layers of the first wood material.
  • layers of the first wood material and thus layers of solid wood, close the adjoining cavities of the at least one layer with a void fraction.
  • air movements are prevented by the layer boundaries and air movements in the adjacent
  • the adhesive bonds between the layers of the plate member extend over the entire area of a simple plate element, wherein substantially all the mutually contacting portions of each interconnected layers are connected via adhesive bonds.
  • layers of the first wood material are used with substantially perpendicular to each other orientations of the fibers in the plate member and in particular glued together, so that the dimensional stability of the plate member is additionally increased.
  • the fibers of at least two directly successive layers of the first wood-based material are aligned differently, in particular such that the fibers of these layers are substantially perpendicular to one another.
  • the used second wood material, or the at least one layer with a void content, and the first wood material used, or the layered solid wood, are adapted to the particular use of the plate element.
  • the second wood material is therefore preferably formed by a layer of boards provided on the wide surfaces with a plurality of parallel grooves and laterally and optionally longitudinally connected boards.
  • the longitudinal axes of the grooves are parallel to the large surfaces.
  • the first wood material used is preferably formed by solid wood panels of small thickness, preferably in the range of 2 to 10 mm. If the stability emanating from the boards with parallel grooves stability is already substantially large enough, the first wood material used may optionally also veneer, in particular Shulfu rnier, are formed with a thickness in the range of 0.7 to 2.5 mm.
  • the web outer surfaces lying in the board surfaces with parallel grooves between the grooves ensure sufficiently large contact surfaces for a stable adhesive bond when assembling plate elements, or when bonding a layer of the second wood material with a layer of the first wood material.
  • the insertion of layers of the first wood material without grooves ensures that always all the web outer surfaces of the grooved boards are in adhesive contact with the adjacent layer of the first wood material without grooves. Regardless of the angle between the grooves and the orientation of the plate or the alignment of grooves of a subsequent layer always the same connection forces are ensured.
  • it can be ensured that the grooves of the second wood material in the layer of the first wood material are always completed and thus no coherent formed from a plurality of grooves cavity. This is advantageous for good thermal insulation.
  • the adhesive is applied to the separate web outer surfaces or to the contiguous surface of the layer without grooves, the Steam permeability low or greatly reduced, which of course depends on the adhesive used.
  • the vapor permeability can be adapted to the respective needs, because a surface with and a surface without grooves are glued together.
  • this comprises at least two layers with grooved boards in the design as a building board, wherein the longitudinal axes of the grooves of these two layers at opposite equal angles to the longitudinal direction of the plate n-elements.
  • the number of layers with grooves depends on the desired stability and is preferably an even number before.
  • the fiber direction of the first wood material preferably extends in the two large surfaces essentially in its longitudinal direction, ie along the larger extent of the plate element. In the interior of structural panels, the fiber direction of the first wood material preferably runs essentially in its transverse direction, that is to say along the smaller extent of the panel element.
  • the panel element is used as a thermal insulation panel, it must first and foremost ensure the highest possible thermal insulation and only secondarily a mechanical stability.
  • the second wood material, or the at least one layer with a void content is therefore preferably formed by a layer of wood shavings bonded with binder.
  • the first wood material used is preferably formed of veneer and optionally of solid wood panels of small thickness.
  • the cost of materials and the production cost can be kept particularly small when preferably peeled veneer is used as the first wood material.
  • a first layer of peeled veneer is rolled from a roll to a production line. Then sawdust sprayed with binder in a predetermined layer thickness is applied to the entire width of the continuous rotary veneer.
  • a second The layer of a peeled veneer is placed on top of the layer with the saw blades and pressed down with a second production belt.
  • a 125 cm wide rotary veneer strip is used.
  • the lengths 250 cm and 125 cm are advantageous, so that correspondingly plate elements of 250 cm ⁇ 125 cm or 125 cm ⁇ 125 cm are formed, which if necessary also 62.5 cm ⁇ 125 cm or 62, 5 cm x 250 cm or 62.5 cm x 62.5 cm can be cut.
  • narrow strips are separated from the plate elements, these are folded around their longitudinal axis by 90 ° and thus joined back into plates, then the cutting lines for separating strips can be parallel to the short side or parallel to the long side Plate elements run.
  • the length of the strips corresponds to a first side length of the plate elements constructed from strips.
  • the second side length of the plate elements constructed from strips can be adapted to the respective needs by the number of connected strips.
  • wood chips are preferably used, which are removed in the production of boards with grooves of starting boards, wherein the wood chips are substantially strip-shaped and flat, wavy, roll-shaped, feather-shaped or spiral and at least 80 weight percent of the wood chips of chips with a length in Range from 2mm to 40mm.
  • the wood chips together with a binder form a substantially coherent structure.
  • the binder comprises at least a portion of an organic binder and / or an inorganic binder, wherein the organic binder preferably a polymer binder, in particular polyvinyl acetate (PVAc), and the inorganic binder, preferably a binder based on alkali polysilicates, in particular a mixture of Sodium silicate and / or potassium umsilikat with lithium silicate is. If high water resistance is required, binders with polyvinyl chloride (PVC) can also be used.
  • PVAc polyvinyl acetate
  • PVC polyvinyl chloride
  • any desired thickness can be achieved by selecting the appropriate feed.
  • An extension of the resulting plate elements or an extension of their large surface is determined by the length of the strips. In the expansion of the large surface that extends perpendicularly to this extent, the choice of the number of interconnected strips allows an arbitrary multiple of the thickness of the simplest board elements used to be achieved.
  • a cutting plane relative to the orientation of the fibers in the layers of the first wood material is determined.
  • Layers whose fibers run parallel to the cutting plane form, after folding, webs whose fibers run parallel to the large outer surfaces of the resulting plate elements.
  • these webs increase the bending stability around bending lines which run parallel to the large outer surfaces and perpendicular to the longitudinal direction of the webs.
  • Layers whose fibers are perpendicular to the cutting plane form after folding webs whose fibers are perpendicular to the large outer surfaces of the resulting plate elements.
  • These webs increase the stability of the large outer surfaces with respect to pressure loading of the resulting plate elements. Because the webs are held between strip-shaped portions of second wood material, the webs can absorb high loads as clamped webs, even if they have only a small thickness.
  • the second wood material or the at least one layer with a void fraction of a layer of grooved and laterally and optionally longitudinally connected boards is formed in the plate elements used for the separation, transfer and bonding, new plate elements are advantageously used as furniture panels and can also be used as doors or special building panels. When used as doors, it is expedient if the edge region of solid wood is formed without grooves, so that fittings can be easily attached.
  • the second wood material or the at least one layer with a Hoh lraumanteil is formed in the used for the separation, transfer and bonding plate elements of a layer of wood chips associated with binder, new plate elements arise advantageously as Wärmdämmplatten or as lightweight construction or door panels can be used.
  • stability may be increased if the transverse section of the strip-shaped subregions of second wood material perpendicular to its longitudinal axis is reduced. This can be achieved by reducing the thickness of the layer with the second wood material in the simplest board elements used and / or the spacing of the successive cutting planes during the removal of strips.
  • the edge portion of solid wood, rather than woodchips bonded with binder is formed to secure fittings.
  • the fibers in the webs formed by the folding run essentially parallel to the large outer surfaces of the new plate elements.
  • the fibers of this layer extend substantially perpendicularly in webs resulting from the separation, folding and joining of strips, extending over the width of the plate elements the large outer surfaces of the new plate elements, which increases their stability.
  • a stack of at least two simplest plate elements is formed in a preferred solution before separating strips with one layer of wood chips associated with binder and each arranged on both sides layers of peeled veneer, wherein between the plate elements of the stack respectively a layer of the first wood material, or layered solid wood with small thickness or veneer, in particular peeled veneer, is inserted so that their fiber direction is transverse to the fiber direction of the already with the simplest plate elements verbund ene peeled veneer. So that the layers of the stack are firmly connected, the layers of the stack are glued and pressed together.
  • the simplest plate elements with square, large surfaces are used to build up the stack, it is possible to dispense with the laying of layered solid wood.
  • the simplest plate elements can be placed at 90 ° orientations of the fibers of the layers of peeled veneer. After the gluing of such layers with different orientation of the fibers, dimensionally stable plate stacks are formed. Now, when strips are separated from the stack, folded by 90 ° and connected to each other, the fibers of the inserted layers of solid wood run from one to the other large surface of the new plate element.
  • the stability can be chosen so that the resulting plate elements can also be used as floor panels. If the webs are disturbing as thermal bridges, so two thermal insulation panels with gegeneina n- staggered web layers are connected together so that there are no continuous webs between the two large outer surfaces of the assembled thermal insulation board.
  • a lightweight construction element comprises at least one building board and one heat-insulating board, the heat-insulating board preferably being fastened to the building board with an adhesive bond or optionally with a nail or agraffing joint.
  • the attachment can be done before assembling the lightweight elements to walls, ceilings, floors or roofs.
  • an area of a house is constructed of lightweight construction elements and subsequently the thermal insulation panels are fastened to the assembled lightweight construction elements.
  • Thermal insulation panels on external facades can be provided with a desired coat of paint or plaster.
  • thermal insulation panels can be provided with a desired floor covering.
  • the clamping devices can be built up, for example, with threaded rods and clamping nuts and optionally a spring element, wherein the threaded rod of a lightweight component to be mounted is screwed into the thread of the clamping nut of the already mounted lightweight component. With the clamping nut then firmly in the lightweight element positi oned threaded rod is stretched until the two adjoining lightweight components are pressed together with a desired force, preferably via groove and spring arrangements engage with each other and are biased on the optionally provided spring element.
  • grooves are formed in narrow end faces of the lightweight components. After inserting the clamping devices, the grooves can be covered with a wooden element. Corner areas with tension connections in the directions of the wall sections connecting thereto allow the connection of two differently oriented wall sections.
  • Plate elements in which the second wood material, or the at least one layer with a void portion, formed of several parallel grooves and laterally and optionally longitudinally connected boards is formed preferably comprise at least two layers with laterally bonded grooved boards, wherein the grooves in adjacent layers in particular at an angle to each other.
  • the weakening of the boards or layers transversely to the groove longitudinal directions starting from the grooves is reduced by the layers of solid wood arranged between the layers of grooved boards. In the direction of the groove longitudinal directions, the webs formed on both sides of the grooves ensure a further high stability.
  • the orientations of the boards or the grooves of two directly adjoining layers are selected so that the load capacity of the plate elements corresponds to their use. If the load capacity in the longitudinal direction of the plate elements must be as large as possible, an acute angle of at least 25 ° is selected between the slot longitudinal directions directly adjacent layers. If the load capacity should also be large in the transverse direction, an angle of 90 ° is selected between the slot longitudinal directions of directly adjoining layers. For many applications, angles in the range between 25 ° and 90 °, in particular the angles 45 ° and substantially 60 ° or 30 °, are preferred angles between the groove longitudinal directions directly adjacent to one another.
  • the material removed during the processing of the boards is optimized directly during the removal of the function as an insulating material or insulating material.
  • a machining is used to be removed in the substantially strip-shaped chips.
  • the removed chips have a distribution of chip lengths and a distribution of chip thicknesses.
  • the removal of the chips is ex- suggests that with the chips an insulating material can be formed, which provides a large void content with a strong subdivision after the arrangement in thermal insulation boards, remains stable and retains moisture as little as possible, and allows desired mechanical loads on the plate elements formed therewith.
  • the chips differ in their size composition according to the processing technique used, the type of wood used and the selected direction of the grooves relative to the fiber direction of the boards.
  • the grooves are preferably formed with circular saw blades. The diameter of the circular saw blades, the distance of the saw teeth, the shape of the saw teeth, the peripheral speed of the saw teeth and the relative feed rate between a machined board and the at least one circular saw blade can be selected so that chips with the desired size composition arise.
  • a plurality of, in particular at least four, grooves are arranged in the two main surfaces of a board, they can be formed in parallel with a plurality of circular saw blades spaced apart on each common shaft, each board main surface being associated with a shaft with circular saw blades.
  • the groove is formed in more than one step, wherein each substep removes a portion of the groove, in particular the groove depth.
  • a newly engaging in the board of a rotating circular saw blade carries wood on its entire way to the exit from the board, the wood being removed forms a chip.
  • the span length depends on the curvature of the outer edge of the circular saw blade and on the groove depth or depth of engagement of the circular saw blade in the board.
  • the chip width depends on the width of the teeth of the circular saw blade.
  • the chip thickness or extension perpendicular to Spanlibilsausdehnung and the span width depends on the relative feed rate between a machined board and the at least one circular saw blade, the distance (center angle or peripheral portion) between successive teeth and the speed of the circular saw blade from.
  • teeth are used which produce flat strip-like chips with straight cutting lines, which often have a corrugated shape after the separation and the movement through the clearance associated with the respective tooth in the circular saw blade. When teeth are used, which ones are curved
  • the resulting chips have transversely to their longitudinal extent a curved shape, which results in that on the chips concave cavities are formed.
  • the cutting lines are also formed so that roll, spring or spiral chips arise, which also enclose interiors, or cavities at least partially.
  • Chips can also break during the removal, whereby the resulting partial chips each form a section of the maximum expected chip length. Whether the chips break or not depends, among other things, on the shape and sharpness of the teeth and the free spaces in the circular saw blade that preceded them in the direction of rotation. In addition, the nature of the wood and the orientation of the groove plays a role relative to the longitudinal direction of the board or to the longitudinal direction of the wood fibers. In order to produce as many chips as possible in their achievable overall length, the longitudinal directions of the grooves are designed parallel to the longitudinal direction of the boards and Trennsäge- leaves with sharp teeth and the resulting chips corresponding free spaces used in front of the teeth.
  • the chip thickness is chosen to be as small as possible, whereby a minimum thickness should not be undershot, so that the chips are still sufficiently stable and a substantially constant chip length is achieved. Have width. If a large number of chips is taken out of a given groove volume, then these many chips in the insulating material enable the formation of many partitions enclosed by chips in which small amounts of air, which are partially sealed off, achieve a high thermal insulation effect.
  • the specific weight of a highly insulating insulating material is very small for chips with small thickness and is together with the introduced binder after setting below 270 kg / m 3 . That means that for the production certain volume of the insulating material requires only a small amount of wood
  • the chips removed from the adjacent grooves of a board are of different lengths.
  • the grooves are formed to different depths. Differently deep grooves can be used particularly advantageously if grooves are formed in the boards on both main surfaces. Thus, the entire Nuthohlraum in the board does not have to be smaller due to the different depths grooves, the grooves on the two main surfaces each other opposite each other may have a constant sum of the individual depths.
  • the groove has only a small depth at a first major surface
  • the opposite groove at the second major surface may have a large depth.
  • the wood area between these grooves will then each have a desired minimum thickness.
  • a first shaft aligned with the main surface of the boards to be machined at a first acute wave angle ⁇ is used, on which circular saw blades with increasing diameter are arranged at predetermined intervals ,
  • the first shaft lies in a plane that is perpendicular to the main surface of the boards and aligned perpendicular to the longitudinal axes of the grooves.
  • the angle between the first shaft and the main surface and the diameter of the circular saw blades and their position on the first shaft are preferably coordinated so that all circular saw blades form substantially equal deep grooves.
  • a second shaft with circular saw blades is assigned to the same main surface.
  • This second wave with circular saw blades is relative to a perpendicular to the main surface standing the central longitudinal axis of the board comprehensive mirror plane mirrored to the first wave aligned with the circular saw blades and additionally arranged slightly offset in the board longitudinal direction to the first shaft.
  • the two shafts with the circular saw blades are matched to one another in such a way that, after machining the main surface, there are substantially symmetrical groove cross sections with both shafts, the groove width becoming larger from the main face towards the inside of the board.
  • the groove opening in the main surface corresponds at least to the extent of the circular saw blades in the main surface perpendicular to the groove longitudinal direction.
  • Circular saw blades are used, which at corresponding intervals on a parallel to Main surface and perpendicular to the groove longitudinal direction extending shaft are arranged. After removal of the central webs arise grooves whose cavity part increases from the respective main surface from the inside, up to a central contiguous layer of wood. In a preferred method, the central portions of the grooves are removed before the lateral ones.
  • the central coherent layer of wood can absorb forces which are entered via the side flanks in the grooved board. After gluing layers with differently oriented grooves over an intervening coherent layer of the first wood material, various lateral forces can be absorbed by these bonded layers. If the grooved boards are used in board elements with at least two layers with grooved boards, the coherent wood layer of the individual grooved boards can be minimally formed.
  • the webs With grooves in the longitudinal direction of the boards, the webs extend parallel to the longitudinal direction of the wood fibers, which increases the stability of the webs. It is also possible to form a second family of parallel grooves at an acute angle to the first family of grooves. As a result, the web surfaces between the first grooves and of course the webs are interrupted. When assembling panel elements, there are still enough large contact areas for a stable adhesive bond to the layer of solid wood.
  • a versatile binder for bonding wood chips preferably comprises a proportion of an organic binder and a proportion of an inorganic binder, these two binders having to be mutually compatible.
  • the organic binder used is preferably a polymer binder, for example polyvinyl acetate (PVAc), in the form of a solution in an organic solvent or preferably as a dispersion.
  • PVAc polyvinyl acetate
  • Polyvinyl acetate is an amorphous, odorless and tasteless plastic with high light and weather resistance. It is flammable, but not easily flammable.
  • Suitable inorganic binders are binders based on alkali polysilicates.
  • Alkali polysilicates are crystalline or, as a mixture of different silicates, glassy (amorphous) solids or water-viscous solutions. They include at least one of the alkali metals lithium, sodium, potassium, rubidium, cesium or francium, with alkali polysilicates with sodium and potassium being most widely used as water glass.
  • DE 26 52 421 A1 describes a binder based on alkali polysilicates, which consists of a mixture of sodium silicate and / or potassium silicate with lithium silicate. Already a small proportion of lithium silicate increases the water resistance in the hardened state and ensures a slightly lower pH value. In addition, the efflorescence occurring in the setting of sodium water glass can be avoided with the proportion of lithium silicate.
  • a two-component binder with a desired setting time is optionally used.
  • the binder In order to ensure the most homogeneous bonding structure in a set of wood shavings, the binder must be brought as evenly as possible with as many wood chips in contact. The binder is introduced via nozzles into a material flow of the chips.
  • a binder with proportions of renewable raw materials.
  • excipients may include tannins, technical lignins, carbohydrates, e.g. Starch or also proteins e.g. Casein include.
  • tannins which are widespread in nature and are present both in hydrolyzable and in condensed form, are particularly advantageous.
  • the production is mainly focused on condensed tannins, which are produced in particular from tree barks.
  • binders with tannin and additives for example with hexamine, are used in which only small formaldehyde emissions occur. Due to their chemical structure, tannins can be converted into high molecular weight condensation products with high curing rates.
  • the properties of tannin resins can be improved by the addition of isocyanates.
  • the binder When making the layers with wood shavings, the binder must form bond bridges in contact areas between loosely gathered wood shavings.
  • the binder is formed and supplied to the wood chips, that the wood chips are wetted sufficiently with binder and that in the other Final bonding Binder bridges form between wood chips and the resulting insulating material is permeable to air.
  • a wetting agent and / or a foaming agent and / or a solvent, in particular water are optionally added to the binder.
  • a two-component binder is optionally used.
  • both the chips and the aqueous binder are electrostatically charged.
  • the two components are each charged against each other, so that when they meet the charges, or the charge equalization, leads to an optimal distribution of the binder over the wood chips.
  • the wood chips can be fed through a pipe, with nozzles being assigned to the pipe end for the charged binder.
  • nozzles being assigned to the pipe end for the charged binder.
  • Applicator for the layered application of the chips with the binder on the peeling veneer lying on the carrier tape and on a curing section uses a press belt which compresses the three layers to the desired thickness.
  • binding bridges are formed between the wood chips and the two layers of peeled veneer so far that holds the resulting thermal insulation board together.
  • heat and optionally air or UV light is supplied.
  • plate elements are used for doors or walls, in which part of the void content of the second wood material a heat-absorbing and / or fire-retardant aggregate is inserted.
  • the additive may, for example, release bound water under the action of heat or heat radiation or chemically react with elimination of water.
  • the heat absorption or elimination of water is preferably carried out in a temperature range above 100 ° C, so that the split-off water can escape as steam. It goes without saying that any known additives can be used which at high temperatures or in the case of fire delay the ignition of the plate element or inhibit the heat transfer through the plate member.
  • An advantage of the present invention is that all tools necessary for the production of the plate elements, such as machines and the work steps to be performed, are so simple that they can be carried out by workers trained only briefly and the machine outlay is reduced to a minimum.
  • the production of the lightweight elements can be done near the place with the houses to be built.
  • FIG. 1, 2 are perspective views of a simple thermal insulation panel
  • Fig. 3, 4 are perspective views of a simple building panel
  • FIG. 7 is an exploded view of a building board with 9 layers
  • FIG. 14 is a perspective view of a detail of a heat dam mplatte.
  • FIGS. 1 to 4 show a plate element 1, in which in FIG. 2 and 4 parts are cut out so that the structure is better recognizable.
  • the plate element 1 comprises two large surfaces 2 and circumferential end faces 3.
  • the plate element 1 is made from a first wood material in the form of layered solid wood 4 and a second wood material in the form of a layer 5 with a hollow space portion.
  • the layer 5 is formed with a void content of wood shavings 6 bound with binder, the wood chips 6 being indicated only schematically with black structural elements and the cavities 7 with white points therebetween.
  • the wood chips 6 of the second wood material 5 are substantially strip-shaped and flat, wavy, roll-shaped, spring-shaped or spirally formed.
  • at least 80% by weight of the wood chips will be formed from wood chips having a length in the range of 2mm to 40mm.
  • the average density of the layer of the second wood material in the form of binder-associated wood chips 6 is less than 270 kg / m 3 .
  • the layer 5 is formed with a hollow portion of a layer of laterally and optionally longitudinally connected boards 8, wherein in the boards 8 on the wide surfaces a plurality of parallel grooves 9 as cavities of this layer are formed.
  • the wood remaining from the boards 8 has a central contiguous area 8a and webs 8b leading away therefrom, the grooves 9 being designed as high spaces between the webs 8b.
  • the longitudinal axes of the grooves 9 are parallel to the large surfaces 2.
  • the average density of the layer of the second wood material in the shape of the grooved 9 boards 8 is less than 270 kg / m 3 , this small density starting from boards with a density , over 350 kg / m 3 .
  • vorzugieri preferably in the range of 400 to 550 kg / m 3 , in particular at substantially 470 kg / m 3 , is achieved by the cavities formed by the grooves 9.
  • Grooves 9 are advantageous in which the groove width is formed from the surface of the board 8 away towards the interior of the board 8 towards larger, because while a large cavity and yet a large contact surface can be provided at the board surface.
  • the first wood material in the form of layered solid wood 4 is shown in the embodiment of FIG. 3 and 4 as a solid wood panel with a thickness in the range of 2 to 10 mm and in the embodiment according to FIGS. 1 and 2 as a veneer with a thickness in the range from 0.7 to 2.5 mm.
  • the substantially homogeneous density of the layered solid wood 4 is above 350 kg / m 3 , preferably in the range of 400 to 550 kg / m 3 , for example at substantially 470 kg / m 3 .
  • the veneer can also be used in the embodiment according to FIGS. 3 and 4 and solid wood also in the Austechnologyu ngsform according to FIGS. 1 and 2, if so that the required mechanical stability is achieved.
  • FIGS. 1 to 4 show plate elements 1 with layers 4 and 5 of the first and second wood material, which layers stacked with adhesive bonds between the successive layers.
  • a layer 5 of the second wood material between two layers of the first wood material in the form of the layered solid wood 4 is arranged.
  • the layered solid wood forms 4 cover layers.
  • the fiber directions indicated by lines 4a in the two cover layers of a plate element 1 are aligned substantially perpendicular to one another.
  • the lines 4a of the fiber directions are substantially parallel because the layered solid wood 4 of both cover layers was unwound in the production of the plate elements by peeling veneer rollers with parallel roller axes.
  • Fig. 5 shows an embodiment in which a pair of layers 5 of boards 8 are inserted with grooves 9 in the plate member 1, wherein the longitudinal axes of the grooves 9 of these two layers 5 are aligned at opposite equal angles to the longitudinal direction of the plate member 1.
  • Layered solid wood 4 is arranged between the two layers 5 and at the two large surfaces 2 of the plate element 1, preferably in the form of a solid wood panel at the two large surfaces 2. Between the two layers 5, a layered solid wood 4 with a small thickness optionally a veneer can be arranged. It goes without saying that all layers of solid wood 4 may have the same thickness.
  • the fiber direction 4a of the layered solid wood 4 in the case of the two large surfaces preferably runs essentially in the longitudinal direction of the plate element 1.
  • the fiber direction 4a of the layered solid wood 4 extends essentially in the transverse direction of the panel element 1.
  • the stability of the plate element 1 can be influenced by the choice of the fiber directions.
  • FIG. 6 and 7 show an embodiment in which two pairs of layers 5 of boards 8 are inserted with grooves 9 in the plate element 1, wherein the longitudinal axes of the grooves 9 of the layers 5 of a pair are aligned at opposite equal angles to the longitudinal direction of the plate member 1 , Between all Layers 5 and the two large surfaces of the plate member 1 is layered solid wood 4 is arranged, which is clearly visible in the exploded view of FIG. 7.
  • the thickness of the layered solid wood 4 is in the darg estellten embodiment in the two large surfaces 2 larger than the solid wood 4 between the layers 5. It goes without saying that all layers of solid wood 4 may have the same thickness.
  • the fiber direction 4a of the layered solid wood 4 extends substantially in the longitudinal direction of the plate element 1 in the two large surfaces. Inside the plate element 1, the fiber direction 4a of the layered solid wood 4 extends substantially in the transverse direction of the plate element 1. It goes without saying that the fiber direction inside can also be alternated, in particular in that the central solid wood 4 again has the same fiber direction as that in the case of the large surfaces.
  • FIGS. 8 to 14 were produced from plate elements according to FIGS. 1 to 7 by separating strips 10 from the starting plate elements with cuts perpendicular to their large surfaces, folding the strips 10 90 ° about their longitudinal axis and forming a single one new panel element 1 were connected.
  • a strip 10 comprises sections of four layers 5 of boards 8 with grooves 9, wherein the longitudinal axes of the grooves 9 of the layers 5 are aligned alternately at opposite equal angles to the longitudinal direction of the output plate element 1.
  • the strips 10 comprise Vollholzabschnit- 4' of the layered solid wood. 4
  • the strips 10 associated solid wood sections 4 'of the large surfaces of the starting plate member 1 of adjoining strips 10 are connected to each other via adhesive bonds.
  • plate element 1 ' is each with a glued connection depending on a top layer of the first wood material and thus Solid wood 4 arranged.
  • cover layers and webs oriented perpendicular thereto in the form of solid wood sections 4 'belonging to the strips 10 enclose strip-shaped subregions with the second wood material or hollow space material sections 5'.
  • FIGS. 1 to 13 show a part of a plate element 1 'constructed from strips 10, the strips 10 having been separated from a stack of plate elements 1 according to FIGS. 1 and 2.
  • well recognizable solid wood sections 4 'and cavity material sections 5' shows that the illustrated embodiment comprises strips that of a stack with five plate elements 1 according to FIGS. 1 and 2 and between each one additional Layer of the first wood material were produced.
  • the additional layers of the first wood material are inserted into the stack so that their fiber direction is substantially perpendicular to the fiber direction of the directly adjacent to these layers of the first wood material.
  • a strip 10 comprises five sections 5 'of layers of binder-connected wood shavings 6 and fourteen solid wood sections 4'.
  • the fiber direction of the central solid wood sections 4' is oriented essentially perpendicular to the fiber direction of the outer solid wood sections 4 '.
  • the strips 10 associated solid wood sections 4 'of the large surfaces of the starting plate member 1 of adjoining strips 10 are connected to each other via adhesive bonds.
  • plate element 1 ' In the two large surfaces of the assembled from folded strips 10 plate element 1 ' is each arranged with a glued connection a cover layer of the first wood material and thus of solid wood 4.
  • cover layers and webs oriented perpendicular thereto in the form of solid wood sections 4 'belonging to the strips 10 enclose strip-shaped subregions with the second wood material or hollow space material sections 5'.
  • Fig. 14 shows a part of a built-up of strips 10 plate element, wherein the strips 10 were separated from a stack of plate elements 1 according to FIGS. 1 and 2.
  • the plate elements 1 according to FIGS. 1 and 2 were made square and rotated at 90 °. Selnden fiber directions of the layers of solid wood to form a stack, from which then the strips 10 were separated. By this production, solid wood sections 4 'can be achieved with changing fiber direction, without additionally introduced into the stack layers of solid wood.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention concerne des éléments formant panneaux (1, 1') comportant deux surfaces importantes (2) et des faces périphériques (3), qui se composent d'un premier matériau dérivé du bois (4) sous forme de bois massif ayant une masse volumique sensiblement homogène supérieure à 350 kg/m3 et d'un second matériau dérivé du bois (5) se présentant sous la forme d'une couche ayant une certaine proportion d'espaces creux, la masse volumique moyenne de la couche du second matériau dérivé du bois (5) étant inférieure à 270 kg/m3. Les couches du premier et du second matériau dérivé du bois (4, 5) sont assemblées sous forme de pile par liaisons collées entre les couches successives. Au moins une couche du second matériau dérivé du bois (5) est disposée, en tant que couche continue dans la forme dans laquelle elle a été produite avec des cavités ou dont elle été pourvue, entre deux couches du premier matériau dérivé du bois. Les deux surfaces importantes (2) sont formées par des couches du premier matériau dérivé du bois (4).
PCT/EP2017/060667 2016-05-19 2017-05-04 Procédé de production d'éléments formant panneaux de bois, éléments formant panneaux de bois er leur utilisation Ceased WO2017198473A1 (fr)

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CH00642/16A CH712472A2 (de) 2016-05-19 2016-05-19 Verfahren zum Herstellen von Plattenelementen aus Holz, Plattenelemente und Verwendung derselben.
CH00642/16 2016-05-19

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Cited By (1)

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CN113958116A (zh) * 2021-10-14 2022-01-21 浙江东龙工贸有限公司 一种高硬度建筑胶合模板

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Publication number Priority date Publication date Assignee Title
RU182306U1 (ru) * 2018-03-05 2018-08-14 Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" Композиционный материал на основе древесной коры
AT526148B1 (de) * 2022-07-13 2023-12-15 Fabian Gollner Holzverbundelement und Verfahren zu dessen Herstellung
AT528174A1 (de) * 2024-03-25 2025-10-15 Rudolf Brandstetter Mehrschichtiges Holzpanel

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WO1995032082A1 (fr) 1994-05-20 1995-11-30 Wilhelm Egle Element de construction en bois a couches de bois
WO1999022084A1 (fr) 1997-10-27 1999-05-06 Aislo Oy Procede de production d'un materiau d'isolation, materiau fibreux organique et procede d'isolation par soufflage pour l'application d'une isolation
EP1913211A1 (fr) * 2005-10-28 2008-04-23 Johann Berger Plaque de construction ou similaire, procédé de fabrication et utilisation
EP1930138A1 (fr) * 2006-12-10 2008-06-11 Moralt Tischlerplatten GmbH & Co. KG Panneau de construction léger ainsi que son procédé de fabrication
WO2010022427A1 (fr) 2008-08-27 2010-03-04 Johann Berger Procédé et appareillage pour la fabrication de plaques de planches rainurées croisées
WO2010028416A2 (fr) 2008-08-19 2010-03-18 Johann Berger Planche de bois, fabrication et utilisation dans des panneaux de construction et similaires
US20100266833A1 (en) * 2000-12-27 2010-10-21 Webcore Technologies, Inc Fiber reinforced composite cores and panels
WO2010129983A2 (fr) 2009-05-14 2010-11-18 Johann Berger Panneau léger de construction ou de meuble
EP1674224B1 (fr) 2004-12-21 2011-03-23 Kronotec AG Process for production of wood fiber insulating panels
FR2987309A1 (fr) * 2012-02-28 2013-08-30 Stephane Lhuillier Element de paroi et ses utilisations
WO2013164099A1 (fr) * 2012-05-04 2013-11-07 Padana Ag Éléments en forme de tige comprenant une couche centrale et composite multicouche contenant la couche centrale
WO2015155105A1 (fr) 2014-04-11 2015-10-15 Bionic Alpha Ag Élément de construction léger, procédé de production dudit élément, utilisation dudit élément, et plaque légère et matériau isolant

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DE1838415U (de) * 1961-06-24 1961-09-28 Johannes Schollenberger Verbundplatte aus einer isolierschicht und mindestens einer traegerschicht mit grossem zusammenhaltevermoegen und ohne schadlicher dampfbremse.
DE2652421A1 (de) 1975-11-18 1977-05-26 Baerle & Cie Ag Bindemittel auf basis von waessrigen alkalisilikatloesungen
WO1995032082A1 (fr) 1994-05-20 1995-11-30 Wilhelm Egle Element de construction en bois a couches de bois
WO1999022084A1 (fr) 1997-10-27 1999-05-06 Aislo Oy Procede de production d'un materiau d'isolation, materiau fibreux organique et procede d'isolation par soufflage pour l'application d'une isolation
US20100266833A1 (en) * 2000-12-27 2010-10-21 Webcore Technologies, Inc Fiber reinforced composite cores and panels
EP1674224B1 (fr) 2004-12-21 2011-03-23 Kronotec AG Process for production of wood fiber insulating panels
EP1913211B1 (fr) 2005-10-28 2010-10-06 Johann Berger Plaque de construction ou similaire, procédé de fabrication et utilisation
EP1913211A1 (fr) * 2005-10-28 2008-04-23 Johann Berger Plaque de construction ou similaire, procédé de fabrication et utilisation
EP1930138A1 (fr) * 2006-12-10 2008-06-11 Moralt Tischlerplatten GmbH & Co. KG Panneau de construction léger ainsi que son procédé de fabrication
WO2010028416A2 (fr) 2008-08-19 2010-03-18 Johann Berger Planche de bois, fabrication et utilisation dans des panneaux de construction et similaires
WO2010022427A1 (fr) 2008-08-27 2010-03-04 Johann Berger Procédé et appareillage pour la fabrication de plaques de planches rainurées croisées
WO2010129983A2 (fr) 2009-05-14 2010-11-18 Johann Berger Panneau léger de construction ou de meuble
FR2987309A1 (fr) * 2012-02-28 2013-08-30 Stephane Lhuillier Element de paroi et ses utilisations
WO2013164099A1 (fr) * 2012-05-04 2013-11-07 Padana Ag Éléments en forme de tige comprenant une couche centrale et composite multicouche contenant la couche centrale
WO2015155105A1 (fr) 2014-04-11 2015-10-15 Bionic Alpha Ag Élément de construction léger, procédé de production dudit élément, utilisation dudit élément, et plaque légère et matériau isolant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113958116A (zh) * 2021-10-14 2022-01-21 浙江东龙工贸有限公司 一种高硬度建筑胶合模板

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