Method For Manufacturing A Fibreboard

Abstract

The disclosure proposes a fibreboard made of lignocellulose-containing fibres, in particular wood fibres and a binding agent for providing a fibreboard which enables to combine a high stability, on the one hand, and a comparatively small weight, on the other hand, and which can nevertheless be manufactured with a minor financial effort.

Claims

1. A fibreboard made of lignocellulose-containing fibres, wood fibres and a binding agent, which fibreboard is designed as HDF board and comprises an inherently stable three-dimensional deformation which extends into at least one direction and periodically recurs, wherein in that the board comprises a binding agent which can be activated by vapour treatment.

2. The fibreboard according to claim 1, wherein the deformation extends obliquely to a side edge of the board.

3. The fibreboard according to claim 2, wherein the ratio of the board thickness with respect to the volume amount is at least 1:3.

4. The fibreboard according to claim 3, wherein said fibreboard is connected to at least one similar board such that they lay on top of each other.

5. The fibreboard according to claim 4, wherein the deformations of fibreboards which are placed on top of each other are arranged at angles with respect to each other.

6. The fibreboard according to claim 5, wherein said fibreboard is connected to a flat board on at least one of its surfaces.

7. A method for manufacturing a fibreboard made of lignocellulose-containing fibres, wood fibres and a binding agent according to claim 1, wherein a predetermined quantity of dried fibres and binding agent will be distributed on a forming belt and pre-compressed as well as supplied to a deforming area, in which the temperature and moisture required for the finalization will be introduced into the quantity of fibres and this one will be provided with the deformation under an appropriate pressure in a deforming station and immediately cured, wherein the binding agent will be activated by vapour treatment.

8. The method according to claim 7, wherein the manufacture starting with scattering and finishing with the finalization is a continuous process.

9. The method according to claim 8, wherein the temperature and moisture are set immediately before the deforming and curing operations.

10. The method according to claim 9, wherein the deforming and curing operations are realized simultaneously.

11. The method according to claim 10, wherein a pair of rollers is used for the deforming process.

12. The method according to claim 11, wherein the cured board is afterwards confectioned.

Description

DRAWINGS

[0039] The disclosure provides an innovative fibreboard as well as an innovative manufacturing method which enable to manufacture fibreboards, which comprise a particular mechanical stability with simultaneously a small weight with respect to the spatial volume, with a manageable economic effort by means of an innovative manufacturing unit. Other advantages and features of the disclosure will become apparent from the following description by means of the figures. Herein:

[0040] FIG. 1 shows a schematic side view of a fibreboard according to the disclosure;

[0041] FIG. 2 shows a perspective partial view of a fibreboard according to the disclosure and

[0042] FIG. 3 shows a schematic side view of a sandwich board.

DESCRIPTION

[0043] FIG. 1 shows a fibreboard 1 which comprises a progressing rectangular wave structure in the shown exemplary embodiment. As explanation the dimensioning of the board thickness 2, on the one hand, and the dimensioning of the board height 3, on the other hand, are shown. The board height is together with the circumference of the board the measure for calculating the spatial volume of the board. It becomes clear that a very great spatial volume can be obtained by means of an inherently very stable thin board 1 which only comprises the thickness 2.

[0044] FIG. 2 schematically shows a board 4 having an essentially sinusoidal deformation progress.

[0045] It is obvious that these boards, either in a sandwich construction or as single boards, comprise a high mechanical strength with simultaneously a small bulk density.

[0046] As the representation of a sandwich board in FIG. 3 shows, both surfaces of a corrugated and deformed board 5 according to the disclosure will be laminated with two flat boards 6 and 7. Contact lines result along the wave groups. The areas designated with 8 are connection areas, in which glue is applied. The peaks of the boards 5 can be flattened before, for example by grinding them flat. The glue can be applied onto the connection areas 8 by means of a roller, by linear spraying, by means of a mask or the like. The sandwich compound is formed by subsequent pressing. Corresponding connection areas are similarly formed in the area of the lower flat board.

[0047] The described exemplary embodiments only serve for explanation and are not limiting.