SYSTEM OF CORRUGATED PLATES

Abstract

The disclosure relates to a method for producing a three-dimensionally shaped plate consisting of a wood fibre material. The aim of the disclosure is to provide a method and a system for producing three-dimensionally shaped plates from a wood fibre material, which are logistically simplified and can be used on demand. To this end, e) steam is applied to a prefabricated flat starting plate consisting of a wood fibre material, and f) the plate is coated with a separating means, g) shaped in a forming station, and h) hardened by cooling.

Claims

1-20. (canceled)

21. A method for producing a three-dimensionally shaped plate of a wood fiber material, wherein a) applying steam to a prefabricated flat starting plate of a wood fiber material, b) coating the plate with a separating means, c) shaping the plate in a forming station and d) curing the plate by cooling, wherein an MDF plate having a thickness of 1.0 to 3.0 mm is used as the flat starting plate, wherein shaping is performed between at least one roller pair.

22. The method according to claim 21, wherein an MDF plate having a basis weight of 1.0 to 3.0 kg/m.sup.2 is used.

23. The method according to claim 21, wherein vaporization is performed at a temperature of 100 C. to 105 C., a steam pressure of 0.1 to 8 bar and a steam quantity of 60 to 500 kg/h.

24. The method according to claim 21, wherein coating takes place using nozzles.

25. The method according to claim 24, wherein the separating means is used in a quantity of 10 to 100 g/m.sup.2.

26. The method according to claim 21, wherein a corrugation with a corrugation height of 6.5 to 50 mm is formed in the plate.

27. The method according to claim 21, wherein the plate is compacted by at least 30% within the roller pair.

28. The method according to claim 21, wherein shaping is performed at a temperature around 240 C. and a pressure in the range of 200 N/mm.sup.2.

29. The method according to claim 21, wherein an additional temperature increase takes place during shaping.

30. The method according to claim 21, wherein cooling is performed at ambient temperature.

31. A system for producing a three-dimensionally shaped plate of a wood fiber material using the method according to claim 21, the system comprising at least a) prefabricated flat starting plates of a wood fiber material and b) a processing installation comprising i. a vaporization unit and ii. a forming station, wherein the flat starting plates are MDF plates having a thickness of 1.5 to 3.0 mm and that the forming station at least comprises one pair of rollers.

32. The system according to claim 31, wherein the MDF plates have a basis weight of 1.0 to 3.0 kg/m.sup.2.

33. The system according to claim 31, wherein the vaporization unit comprises several steam output units.

34. The system according to claim 31, wherein the processing installation is designed as a mobile unit.

Description

DRAWINGS

[0032] The drawing described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0033] Further advantages and features of the disclosure will become apparent from the following description with reference to the drawing FIGURES.

[0034] FIG. 1 shows a schematic view of a production process in a schematically illustrated processing installation.

[0035] Corresponding reference numerals indicate corresponding parts throughout the several views of the drawing.

DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawing.

[0037] In FIG. 1, a flat starting plate 1 is passed through between vaporization elements 3 and 4 of a vaporization unit 2 in the direction of arrow 10 while steam is applied to the plate from above and below, the vaporization time being chosen as a function of the steam quantity and the material thickness of the plate.

[0038] The vaporized plate is then supplied to a forming station 5 in the direction of arrow 11, which forming station consists of two rollers 6 and 7, e.g. a calendar and a corrugating roller, in the illustrated embodiment. The plate is passed through in the direction of arrow 12 to finally produce the corrugated plate 8.

[0039] The direction of arrow 11 has been chosen exclusively for the purpose of illustration. The arrangement of the stations relative to each other is arbitrary. These can be arranged one behind the other for continuous processes or they can be in a different relation to each other depending on the circumstances. The embodiment described only serves the purpose of explanation and is not limiting.

[0040] The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are inter-changeable and can be used in a selected embodiment, even if not specifically shown or described. The same may also be varied in many ways. Such variations are to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.