EP2621694B1 - Dispositif pour produire des macro-fibres à partir de grumes et procédé de production d'un matériau composite en bois renforcé à l'aide d'un tel dispositif - Google Patents

Dispositif pour produire des macro-fibres à partir de grumes et procédé de production d'un matériau composite en bois renforcé à l'aide d'un tel dispositif Download PDF

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Publication number
EP2621694B1
EP2621694B1 EP11767672.6A EP11767672A EP2621694B1 EP 2621694 B1 EP2621694 B1 EP 2621694B1 EP 11767672 A EP11767672 A EP 11767672A EP 2621694 B1 EP2621694 B1 EP 2621694B1
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Prior art keywords
cutting
wood
roller
binder
pressing
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EP11767672.6A
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German (de)
English (en)
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EP2621694A1 (fr
EP2621694B8 (fr
Inventor
Peter GRÄTER
Stephan Frybort
Ulrich Müller
Raimund Mauritz
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Doka GmbH
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Doka Industrie GmbH
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Priority to PL11767672T priority Critical patent/PL2621694T3/pl
Publication of EP2621694A1 publication Critical patent/EP2621694A1/fr
Publication of EP2621694B1 publication Critical patent/EP2621694B1/fr
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Publication of EP2621694B8 publication Critical patent/EP2621694B8/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L9/00—Manufacture of wooden sticks, e.g. toothpicks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material

Definitions

  • the invention relates to a device for extracting macro fibers from logs and a method for producing a wood composite material by means of such a device.
  • wood materials that are based on wood (fibers) in various crushing stages and each have special properties that maintain the properties of the starting product, namely wood, to varying degrees.
  • the pronounced anisotropy must always be taken into account.
  • wood in the fiber direction exhibits high tensile strength and rigidity. Rigidity and strength drop considerably across the fiber. Consequently, even a small fiber deviation has significant effects.
  • defects are to be considered, for example due to branches that also affect the structural behavior of wood.
  • wood is used on the one hand as lumber, ie in the form of essentially prismatic beams.
  • the heterogeneous material wood can increase with an increasing degree of fragmentation be homogenized. However, this is accompanied by a loss of strength.
  • wood materials are chipboard, OSB (Oriented Strand Board), "veneer strip materials", such as Parallel Strand Lumber (PSL), Veneer Strip Lumber (VSL) and Veneer Strip Panel (VSP), plywood, fiberboard, wood plastic composites and the comparatively new material called scrimber.
  • PSL Parallel Strand Lumber
  • VSL Veneer Strip Lumber
  • VSP Veneer Strip Panel
  • a corresponding method is for example in the US 3,674,219 described. Similar devices and associated methods are disclosed in U.S. Patent No. 5,376,837 WO 89/11383 A1 , of the EP 0 414 758 A1 , of the EP 0 666 155 A1 , of the US 4,122,236 , of the US 4,232,067 , of the US 5,279,691 and the US 4,711,689 described.
  • the wood materials hitherto known from this group have a comparatively high density and thus a high weight with regard to the components produced therefrom.
  • the process for producing the so-called macrofibers, ie bundles of wood fibers has proven to be in need of improvement.
  • the invention is therefore an object of the invention to provide an improved device for dissolving macro fibers of logs and a method for producing a wood composite material by means of the device.
  • the device according to the invention has at least one pair of rollers with mutually directed, largely circumferentially extending cutting webs whose distance from the roller axis to the edge increases and decreases towards the axial center of the roller.
  • the tips of the cutting ribs are spaced from the roller axis such that they are farther from the roller axis at the edges of the roller than at the center.
  • an adaptation to a "half" of a cross-section usually largely round of the construction trunk takes place in an advantageous manner.
  • two opposite and the tree trunk between them receiving roles with cutting webs with the described contour can be done a particularly good unlocking a tree trunk.
  • results from the provided with (in cross section as peaks recognizable) cutting webs the introduction of shear and compressive forces, which cause a corresponding splitting effect in the wood.
  • the resulting so-called macrofibres have a thickness of 0.5 mm to 3.0 mm, preferably 1.5 mm to 2.5 mm and a width of 2 mm to 6 mm, preferably 3 mm to 5 mm.
  • the maximum length of the macrofibres is essentially determined by the length of the worked sections of logs. In that regard, macrofibres can be achieved from a few centimeters to several decimeters, depending on the length of the processed stem sections.
  • the longitudinal axis of the wood fibers contained in the macrofiber substantially follows the longitudinal axis of the macrofibers, so that the latter are characterized by very high strength and stiffness values nearly equal to those of reach perfect wood.
  • the cutting webs may themselves have different (radial) heights, and may be provided on a roller with a constant over the axial length diameter, that results in the different distance from the roller axis by the different height of the cutting webs.
  • the differential removal of the (for the action on the wood) crucial tips of the cutting webs from the roll axis can also be formed in that the cutting webs have a substantially constant height, but are provided on a roller, which in diameter towards the edges increases.
  • the logs may be rotated after each pass through a suitable angle, for example 90 °, 45 ° or 30 °, and subsequently machined at a different angle.
  • a suitable angle for example 90 °, 45 ° or 30 °
  • the detachment of the macrofibres from the root surface as described below can be done after each pass, after a few passes or after all passages or after one, several or all roller pairs.
  • the height of the cutting webs in other words the distance of the tip of the respective cutting web from the surface of a roll, which in this case has a substantially constant cross-section, have been found to be advantageous for small wood 10 mm to 30 mm. It should be noted in particular that the cutting webs penetrate to some extent in the processed tree trunk section, but macrofibers that jam between individual cutting bars must be removed from these.
  • an order of magnitude of 40 ° to 90 ° is currently preferred.
  • At least one roller of a respective pair of rollers in the radial direction movable and pressurizable.
  • a so-called wiper is arranged between at least two cutting webs of at least one roller, which may be advantageously wedge-shaped in order to guide the macrofibres over the wedge surface.
  • a circumferential eccentric disk may be provided substantially at the base of the profile between at least two cutting webs, as shown in FIG US 4,364,423 , which is made in this regard the subject of the present application is disclosed.
  • Another alternative is provided instead of the eccentric disc provided cable, ropes or wires.
  • the inventive Apparatus preferably has a cutting drum arranged in the machining direction after at least one pair of rollers, which has at least one largely axially extending cutting edge on the outer side and cooperates with at least one pressing and rotating element for rotating and pressing wood logs against the cutting drum.
  • the pressing and rotating element presses the log against the cutting drum and rotates the latter, so that the cutting edge arranged on the outside of the cutting drum can engage in the partially released fibers and completely loosen them.
  • Mitilia such as. axially extending webs is provided to improve in particular the rotation of the stem portion.
  • a driver for example, spines and / or teeth can be used.
  • At least one wedge-shaped ramp can advantageously be provided between the cutting drum and the pressing and rotating element, on which the log is always held at a height, on which the cutting edge, due to the decreasing diameter of macro fibers (n) engage the cutting drum approximately at the level of the trunk center axis.
  • an angle of about 45 ° and / or a highest point approximately at the level of the central axis of the cutting drum is preferred for the described ramp.
  • the number of cutting edges on the cutting drum must be adapted to the rotational speed of the cutting drum and / or of the pressing and rotating element. In first attempts, however, a number of two to eight cutting has proven to be favorable.
  • the binder is applied to the aligned macrofibers (sequence of steps: a, b, c, d and e).
  • the binder may also be applied prior to aligning the macrofibre (sequence of steps: a, c, b, d and e).
  • the method may advantageously be continuously, e.g. be carried out by means of a belt press.
  • the macrofibers are dried and oriented substantially uniaxially (i.e., in parallel) on press sheets or dies.
  • the binder is applied between and / or on the aligned macrofibers.
  • the application of the binder can be carried out by methods established in the wood industry, e.g. Spray or gluing or gluing.
  • the foaming time of the binder is adjusted so that the foaming process begins predominantly only after the press has been closed. That is, the binder system is chemically adjusted so that the start time for the Foaming is delayed so that the press or mold can be closed before it comes to a significant foam development.
  • the macrofibers are preferably only minimally compressed, so that the density of the wood composite material produced does not differ significantly from the density of the wood used. Since the macrofibers are compressed only insignificantly in the process according to the invention, the sources occurring in the event of later contact with water or when stored in water can be minimized or avoided. As a result, swelling values can be obtained which are in the range of the swelling of the used wood or even below. This is a significant advantage over conventional wood-based materials, which have a mostly high density of wood and thus have a significantly higher swelling than the wood used in contact with water.
  • the externally applied pressing pressure acts, on the other hand, a foaming pressure develops due to the foaming of the binder, so that the binder substantially completely penetrates the network of macro fibers and wets them substantially completely on their surface.
  • the macrofibers are thus surrounded by a binder matrix and are thus well protected against moisture absorption.
  • the binder Since the binder is introduced by the expansion of the binder in the network of macrofibres, creates a very homogeneous material with uniform density, in which almost all the cavities are filled with the foam structure and the fibers are almost completely surrounded by foam (enveloped).
  • inventive method in particular when using a two-component
  • Polyurethane system as a binder, the advantage that only insignificantly heat must be supplied to start the cure.
  • the necessary heat can already be introduced by slight preheating of the macro fibers (for example to 30-90 ° C., preferably 50 ° C.).
  • the press can be reopened immediately. Even with incompletely cured panels of the wood composite material according to the invention, however, the panels are not destroyed by so-called splitters in contrast to conventional wood-based panels. Due to a possible post-hardening, the wood composite material according to the invention merely causes attrition.
  • a novel composite wood material can be produced which has a density of 200-550 kg / m 3 and a stiffness measured in the 4-point bending test according to EN 789 of 4,000-12,000 MPa, wherein the wood composite macrofibers with a degree of slimming (ratio of length to Thickness of the fibers) greater than 20 and comprises a binder, and the binder has a foam structure.
  • the wood composite according to the invention has a density of 200-550 kg / m 3 , preferably 300-550 kg / m 3 .
  • the stiffness measured in the 4-point bending test according to EN 789 is 4,000-12,000 MPa, preferably 5,000-12,000 MPa, particularly preferably 6,000-12,000 MPa.
  • the wood composite material has a density of 300-550 kg / m 3 and a rigidity of 6,000-12,000 MPa.
  • the wood composite according to the invention comprises macrofibres made of wood with a degree of slimming (ratio of length to thickness of the fibers) greater than 20.
  • the macrofibers used have a length of 100-400 mm, more preferably 150-300 mm. It is obvious to the person skilled in the art that it can not be ruled out in terms of production technology that the fibers used always comprise a certain proportion of shorter fibers.
  • the wood composite according to the invention further comprises a binder, which has a foam structure in the cured state.
  • the binder preferably has a predominantly fine-pored foam structure.
  • the binder has a foam structure in such a way that 90-95% of the pores have a pore size in the range of 30-500 .mu.m, preferably 50-300 .mu.m, measured by means of a microscope at a section through the material.
  • a binder is used for the wood composite according to the invention, which forms a foam having a density of 30-300 kg / m 3 , preferably 80-200 kg / m 3 , with free foaming.
  • the unreacted binder is poured into an open-topped vessel. Due to the chemical reaction, the binder foams up and can expand freely through the opening. After curing, the over-swollen foam is cleanly separated with a knife.
  • the density of the free-foamed binder can be calculated from the previously determined volume and weight of the vessel and the weight of the foam-filled vessel.
  • a binder which forms a closed-cell foam structure. Since the fiber in the wood composite according to the invention are almost completely sheathed by the foam and almost all voids between the fibers are foam-filled, the penetration of moisture is reduced or even completely prevented by a closed-pore structure of the foam, resulting in an advantageous behavior of the wood composite material under the action of moisture , such as a low swelling leads.
  • the wood composite according to the invention thereby has a significantly lower swelling when exposed to moisture compared to conventional wood materials. This is in the range of solid wood or even lower, while conventional wood-based materials usually have a relation to the swelling of the raw wood used significantly increased swelling.
  • thickness swelling dimensions according to DIN 52364 between 2.7% and 6% can be achieved, according to EN 317 between 1.5 and 5%.
  • the spring size for solid spruce according to DIN 52364 is also about 4 to 6% in comparison.
  • corresponding chipboard or OSB show swelling dimensions of 7% to 30%.
  • the macro fibers used may be modified by suitable measures before further processing.
  • suitable measures are, for example, acetylation or impregnation with suitable resins or chemicals such as melamine resin or DMDHEU, thermal modification or other known swell-compensating measures.
  • suitable resins or chemicals such as melamine resin or DMDHEU
  • thermal modification or other known swell-compensating measures are, for example, thermal modification or other known swell-compensating measures.
  • the swelling of the fibers is reduced in moisture absorption and the total swelling of the wood composite material particularly low. This allows swelling values of less than 2% to 4% to be achieved.
  • the macrofibres used in the wood composite according to the invention can be impregnated very easily.
  • the modification of solid wood fails in many cases due to the lack of impregnability of the wood.
  • the binder used according to the invention is preferably a polymer-based binder.
  • a polymer-based binder for example, epoxy resin, isocyanate (including polyurethane), melamine, urea, phenolic foams or mixtures thereof can be used.
  • a polyurethane system is used, such as e.g. a one- or multi-component polyurethane system, in particular a two-component polyurethane system.
  • thermoplastic foams such as polystyrene (e.g., EPS or EPX) may also be used.
  • the wood composite according to the invention further contains particles which can be excited by fields, e.g. Iron oxide particles.
  • the foaming and curing process of the binder can be initiated (started) and / or accelerated by application of a field (e.g., induction, microwave, radio frequency, radiation, etc.).
  • the particles may conveniently be introduced into the binder prior to the production of the wood composite material, but they may also be used separately.
  • heat, hot air or steam can be used to initiate or accelerate the foaming and curing process of the binder.
  • the wood composite according to the invention may further comprise suitable additives, e.g. Foaming agents, fillers, pigments, reinforcing fibers (nano, micro or macro) fire or wood preservatives as well as means for swelling, etc., included.
  • suitable additives e.g. Foaming agents, fillers, pigments, reinforcing fibers (nano, micro or macro) fire or wood preservatives as well as means for swelling, etc.
  • additives can either be added to the binder or introduced separately into the material.
  • Such additives can impart special properties, such as greater hardness or shear resistance, durability, moisture resistance, etc., to the wood composite in a manner known to those skilled in the art.
  • the wood composite according to the invention is suitable for all products that are made of solid wood or wood-based materials, such as chipboard or OSB, etc. Due to the lower density of the use of the wood composite material according to the invention leads to a lower weight of the products thus produced.
  • Fig. 1 is to be processed log 2 in the direction of its longitudinal extension, ie perpendicular to the plane of Fig. 1 , Passed through the two rollers 1 of a pair of rollers and thereby processed on its outer surface so that liberate first macrofibers, and more macrofibers can be dissolved out in a subsequent processing step in a simple manner.
  • the rollers 1 are provided at their periphery with substantially circumferentially and preferably in a plane substantially perpendicular to the roller axis 22 extending cutting ribs 3, which according to the invention at the edges have a greater distance to the respective roller axis 22, as at the axial center of the respective role 1.
  • the webs themselves may be about 5 mm to 10 mm wide (along the axis 22 of the respective roll 1), and the same dimension may exist between two adjacent webs.
  • Fig. 2 shows how it can be prevented in each case that completely detached macrofibers between individual cutting ribs 3 jammed.
  • a wedge-shaped scraper 6 is arranged between two at least two adjacent, preferably between all cutting webs 3, which dissolves the macrofibres of the profiled ground between adjacent cutting webs.
  • the tip of the scraper 6 can also be pulled forward over the upper tangent point of the squeezing rollers to reduce wear and improve the discharge of the microfibers, as with the overall dashed scraper 6 'in FIG Fig. 2 is indicated.
  • FIG. 3 an area of the device according to the invention is shown in which macro-fibers, which have not yet completely detached from the surface of the log 2, can be dissolved out.
  • the log 2 is in this case pressed substantially in the radial direction against a cutting drum 7, which is provided in the case shown with two axially extending cutting edges 8.
  • the pressing against the cutting drum is carried out by a pressing and rotating element 10, which is essentially formed by a roller, which is provided in the case shown with axially extending webs.
  • the pressing and rotating element 10 is pivotably mounted on a so-called traverse 11 and further acted upon by the pressure of a gas spring 13.
  • the log 2 is independent of the feed movement of the traverse in the direction of arrows 12 with constant pressure against the cutting drum. 7 pressed.
  • the pivotable mounting of the pressing and rotating element 10 on the traverse 11 takes place in the case shown by a pendulum fourteenth
  • a wedge-shaped ramp 15 is also provided.
  • the surfaces of the ramp can be flat or slightly curved.
  • the ramp may have an angle of approximately 45 ° on the side at which the logs 2 are guided to the cutting drum 7, and / or their highest point may be approximately at the level of the axis of the cutting drum 7.
  • a part of a mold 17 is shown, in which the macrofibres obtained as described above are further processed. First, they are preferably dried and placed on press plates or in the Fig. 4
  • the mold 17 shown by way of example is largely parallel to one another, ie oriented uniaxially in the direction 18. Between and / or on the aligned macrofibres a binder with a foam structure is applied. This can be done for example by the device 19 shown, which is on the one hand in the direction 18 moves the fibers, and on the other hand, this is vertically reciprocated.
  • the actual application can be done for example by spraying and for example by means of so-called Beleimanlagen and / or Spanblender.
  • the foaming system is set so that the beginning of the foaming is delayed, so that the press, of which a part 17 in Fig. 4 is shown, can be completely closed.
  • the macrofibers are only minimally compressed, so that the density of the material produced does not differ significantly from the density of the wood used.
  • Fig. 5 acts in the closed press or mold on the one hand, the externally applied pressing pressure 21.
  • the foaming of the binder inside a pressing pressure, indicated by the arrows 20 whereby the binder component penetrates the network of macrofibers and this almost on their surface completely wetted. Accordingly, the macrofibers are essentially completely surrounded by a plastic matrix. This is done in an advantageous manner by expanding the binder. Due to this closure, the macrofibres are well protected against moisture absorption.
  • Macrofibers are dried by a warm (50 ° C) air stream and several days in a room climate of 20 ° C and 65% rel. Humidity stored, resulting in a wood moisture of about 12%.
  • 210 g of the macrofibers are oriented as exactly as possible parallel to one another.
  • 50% of the fibers are placed in an aluminum mold (30 ⁇ 12 cm) heated to 50 ° C. and uniformly wetted with 60 g of two components of polyurethane (from RAMPF No. 80 L86 / 4-1). Subsequently, the remaining 50% of the fibers are placed in the mold and the mold is closed, so that the inserted macrofibres are compressed to a height of 16 mm. Due to the chemical reaction of the two components of the polyurethane with the water available in the wood foams this strong. After 30 min. the foam is completely cured and the wood composite material can be removed from the mold.

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

Claims (18)

  1. Dispositif pour gratter des macro-fibres aux grumes de bois (2) présentant au moins une paire de rouleaux (1) avec des barrettes coupantes (3) orientées les unes vers les autres, s'étendant en grande partie dans la direction circonférentielle,
    caractérisé en ce
    que à au moins un rouleau (1) de la paire de rouleaux, la distance entre les barrettes coupantes (3) et l'axe de rouleau augmente vers le bord et diminue vers le milieu axial du rouleau (1), et en ce que des pointes des barrettes coupantes (3) sont disposées essentiellement en forme d'arc.
  2. Dispositif selon la revendication 1,
    caractérisé en ce
    que deux à six paires de rouleaux décalées de 90° à 30° sont prévues.
  3. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que les barrettes coupantes (3) présentent une hauteur de 10 mm à 30 mm.
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que des pointes des barrettes coupantes (3) présentent un angle de 40° à 90°.
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins un rouleau présente un diamètre de 150 mm à 500 mm et/ou une longueur axiale de 100 mm à 400 mm.
  6. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins un rouleau (1) d'une paire respective est mobile dans la direction radiale et peut être mis sous pression en direction de l'autre rouleau de la paire de rouleaux.
  7. Dispositif selon l'une quelconque des revendications précédentes, de plus avec au moins un tambour de coupe (7) disposé dans la direction de traitement après les paires de rouleaux avec au moins une lame (8) s'étendant en grande partie axialement sur la face externe et au moins un élément de pression et de rotation (10) pour la rotation et la pression de grumes enbois (2) sur le tambour de coupe (7).
  8. Dispositif selon la revendication 7,
    caractérisé en ce
    que l'élément de pression et de rotation (10) est pourvu d'au moins un élément d'entraînement tel que des barrettes s'étendant axialement.
  9. Dispositif selon la revendication 7 ou 8,
    caractérisé en ce
    que l'élément de pression et de rotation (10) est mobile, en particulier coulissante ou pivotante, et est mis sous pression en direction du tambour de coupe (7).
  10. Dispositif selon l'une quelconque des revendications 7 à 9,
    caractérisé en ce
    qu'au moins une rampe cunéiforme est prévue entre le tambour de coupe (7) et l'élément de pression et de rotation (10), laquelle comporte de préférence un angle d'environ 45° et/ou le point le plus haut à peu près au niveau de l'axe médian du tambour de coupe (7).
  11. Dispositif selon l'une quelconque des revendications 6 à 10,
    caractérisé en ce
    que le tambour de coupe (7) présente un diamètre entre 250 mm et 500 mm, en particulier d'environ 300 mm, et/ou l'élément de pression et de rotation (10) présente un diamètre de 100 mm à 200 mm, en particulier d'environ 120 mm.
  12. Procédé pour produire un matériau composite en bois avec les étapes suivantes :
    - produire des macro-fibres à l'aide d'un dispositif selon l'une quelconque des revendications précédentes ;
    - sécher des macro-fibres ;
    - orienter des macro-fibres en grande partie parallèle;
    - appliquer un liant qui présente une structure de mousse ;
    - fermer une presse ; et
    - mousser le liant.
  13. Procédé selon la revendication 12, le système de liant étant réglé de sorte que le processus de moussage commence surtout après que la presse ferme.
  14. Procédé selon l'une quelconque des revendications 12 ou 13, le processus de moussage et de durcissement étant initié et/ou accéléré par un champ électromagnétique.
  15. Procédé selon la revendication 14, des particules qui peuvent être excitées par des champs étant appliquées en plus du liant.
  16. Procédé selon la revendication 15, les particules étant contenues dans le liant.
  17. Procédé selon l'une quelconque des revendications 12 ou 13, le processus de moussage et de durcissement étant initié et/ou accéléré par de la chaleur, de l'air chaud ou de la vapeur.
  18. Procédé selon l'une quelconque des revendications 12 à 17, qui est réalisé comme un procédé continu par exemple à l'aide d'une presse à bande.
EP11767672.6A 2010-10-01 2011-09-30 Dispositif pour produire des macro-fibres à partir de grumes et procédé de production d'un matériau composite en bois renforcé à l'aide d'un tel dispositif Active EP2621694B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11767672T PL2621694T3 (pl) 2010-10-01 2011-09-30 Urządzenie do oddzielania makrowłókien z kłód drewna i sposób produkcji laminatu drzewnego za pomocą takiego urządzenia

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010047253A DE102010047253B4 (de) 2010-10-01 2010-10-01 Vorrichtung zur Herstellung von Makrofasern aus Holzstämmen und Verfahren zur Herstellung eines Holzverbundwerkstoffes mittels der Makrofasern
PCT/EP2011/067134 WO2012042028A1 (fr) 2010-10-01 2011-09-30 Dispositif pour produire des macro-fibres à partir de grumes et procédé de production d'un matériau composite en bois renforcé à l'aide de macro-fibres

Publications (3)

Publication Number Publication Date
EP2621694A1 EP2621694A1 (fr) 2013-08-07
EP2621694B1 true EP2621694B1 (fr) 2014-10-22
EP2621694B8 EP2621694B8 (fr) 2014-12-31

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EP11767672.6A Active EP2621694B8 (fr) 2010-10-01 2011-09-30 Dispositif pour produire des macro-fibres à partir de grumes et procédé de production d'un matériau composite en bois renforcé à l'aide d'un tel dispositif

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EP (1) EP2621694B8 (fr)
DE (1) DE102010047253B4 (fr)
PL (1) PL2621694T3 (fr)
RU (1) RU2541390C2 (fr)
WO (1) WO2012042028A1 (fr)

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PL224312B1 (pl) 2013-04-30 2016-12-30 Michał Marcin Janowski Modułowe urządzenie do wzdłużnego rozdrabniania drewna do produkcji tworzywa drzewnego
FI127662B (fi) * 2015-11-24 2018-11-30 Veisto Oy Laitteisto ja menetelmä tukkien käsittelemiseksi
CN114043593B (zh) * 2021-10-08 2022-09-16 嘉应学院 一种成品厚度可控的竹纤维生产设备
DE102022123936A1 (de) 2022-09-19 2024-03-21 Peter Vente GmbH & Co. KG Vorrichtung zur Aufbereitung von langgestreckten Holzelementen

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DE102010047253A1 (de) 2012-04-05
EP2621694A1 (fr) 2013-08-07
WO2012042028A1 (fr) 2012-04-05
RU2541390C2 (ru) 2015-02-10
DE102010047253B4 (de) 2013-04-18
PL2621694T3 (pl) 2015-03-31
RU2013119958A (ru) 2014-11-20
EP2621694B8 (fr) 2014-12-31

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