57 results about "Medium density fiberboard" patented technology

The invention provides medium-density fiberboard drying waste gas treatment equipment, and relates to the technical field of waste gas treatment, the medium-density fiberboard drying waste gas treatment equipment comprises a fixed seat, a bracket is fixedly mounted on the side of the fixed seat, a barrel body is fixedly mounted in the fixed seat, gas inlet pipes are fixedly mounted at the two ends of the barrel body, and a driving motor is fixedly mounted at one end of the barrel body. According to the invention, the movable cylinder is pushed to move by the air pressure of waste gas, the movement of the movable cylinder realizes the filtration of a filter point according to the thrust of the air pressure, the movable cylinder enters the fixed cylinder under the pushing of the air pressure, and the air outlet hole preferentially contacts with the 1 / 2 part of the filter plate for filtration; the gas filtered by the filter plate is secondarily adsorbed and filtered by water mist sprayed by the atomizing spray head, the gas pressure of the waste gas is reduced in the later period, the movable cylinder is shrunk by a half distance, and the gas outlet hole moves to the other half position for filtering.

The utility model discloses a primary-secondary door leaf with an anti-deformation structure, which comprises a first door leaf used as a secondary door and a second door leaf used as a primary door, and laminated veneer lumber is arranged at the adjacent ends of the first door leaf and the second door leaf. The laminated veneer lumber and the hollow shaving board arranged on the side of the laminated veneer lumber are used as core materials of the first door leaf and the second door leaf; the front side and the rear side of the laminated veneer lumber and the hollow-core shaving board are respectively provided with a medium-density fiberboard, the outer surfaces of the medium-density fiberboards are coated with facing material layers, and edge sealing materials are arranged at the ends of the laminated veneer lumber and the hollow-core shaving board. The high-strength laminated veneer lumber is adopted as one part of the core plate, the overall strength of the door leaf is guaranteed, the other part of the core plate is made of the hollow-core shaving board, and gaps used for absorbing deformation are formed in the hollow-core shaving board. In addition, the medium-density fiberboards arranged on the surfaces of the laminated veneer lumber and the hollow-core shaving board are made of soft materials, small gaps exist in the medium-density fiberboards, and the anti-deformation effect can also be achieved.

A billiards table is disclosed comprising a synthetic slate that includes a top layer formed from a reinforcing fiber and a curing resin, and a support layer adhered to a bottom side of the top layer. A first frame structure is attached to a bottom side of the support layer. The support layer may include polyurethane foam or medium-density fiberboard. A heating element is attached to a bottom side of the support layer, and an insulating layer covers a bottom side of the heating element. A second frame structure supports the first frame structure and defines a cavity that contains a weight. The reinforcing fiber may be carbon fiber, and the curing resin may be epoxy-based, with a ratio of approximately 1:1 by weight. A plurality of legs may support both the first and second frame structures.

The utility model relates to the technical field of solid waste utilization furnaces, and discloses a medium density fiberboard calcination solid waste utilization furnace which comprises a base, an installation seat is fixedly assembled on the top of the base, a heat preservation pipe is installed in an inner cavity of the installation seat, a water tank is fixedly assembled on the outer wall of the installation seat, and a water pump is fixedly assembled on the outer wall of the water tank. According to the medium density fiberboard calcination solid waste utilization furnace, a recycling box is arranged on the outer wall of a mounting base, smoke generated by incineration is guided into the recycling box through a smoke guide pipe, high-temperature and high-heat smoke makes contact with the outer wall of a heat conduction pipe, heat is transmitted to water in an inner cavity of the heat conduction pipe, the temperature of the water is increased, and then circulation is conducted through a heat preservation pipe; and a certain heat preservation effect is achieved on the outer wall of the mounting base through the heat pipe, heat in high-temperature and high-heat flue gas can be recycled, a certain heat preservation effect can also be achieved on the inner wall of the mounting base, and therefore the incineration bin can conduct incineration operation better.

A cordless aw is provided with regenerative braking means that increases the number of repeated cuttings the saw is able to perform (x) per full discharge cycle of the battery pack, as compared to the number of repeated cuttings achievable by the same saw not employing a regenerative braking means (y) per full discharge cycle of the battery pack, such that x / y is approximately at least one of the following: i) 1.1 when cutting a Pressure-Treated (PT) lumber workpiece having a cross-sectional size of approximately 89 mm×89 mm±2 mm, ii) 1.15 when cutting a Spruce Pine Fir (SPF) lumber workpiece having a cross-sectional size of approximately 38 mm×89 mm±2 mm, or iii) 1.25 when cutting Medium Density Fiberboard (MDF) workpiece having a thickness of approximately 19 mm±1 mm and a width of approximately 76 mm±2 mm.

In the field of decorative floor coverings, decorative panels are known that have a core layer based on MDF (medium-density fiberboard) or HDF (high-density fiberboard) onto which a decorative substrate is bonded to give the panels the desired appearance. The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel, or a wall panel. The invention also relates to a floor covering consisting of a plurality of panels joined together.

The invention relates to a method and an apparatus for process-optimized manufacture of wooden boards, in particular fiberboards or MDF boards. In order to provide such a method and such an apparatus, which allow quality optimization and at the same time also continuous quality assurance, make it possible to determine the best possible control variables particularly easily and quickly, and additionally ensure continuous production with the lowest possible reject rate and the greatest possible process stability, according to the invention at least one process parameter, in particular the water content and / or the amount of adhesive applied to the fibrous material, is measured by near-infrared spectroscopy and the measured values of the at least one process parameter are transmitted to a control unit for process optimization and / or for process-optimized control of the method. The at least one process parameter is measured at one or more positions selected from a position during the provision of wood chips directly downstream of the lumberyard, in particular between the lumberyard and a subsequent wood-chip scrubber, and / or a position downstream of the provision of wood chips and during the boiling of the fibrous material, in particular between a wood-chip scrubber and a pre-boiler or a boiler, and / or a position directly downstream of the drying of the glued fibrous material, in particular between the dryer and a screen and / or the fiber bin, and / or a position on or in the fiber bin, in particular on a window of the fiber bin, and / or a position downstream of the spreading, in particular downstream of the spreading station and / or downstream of a molding machine, and / or upstream of a press for pressing the molded strand and / or in the region of the molding belt.

A panel, in particular wall, ceiling, furniture or floor panel, wherein the panel comprises: a support panel, such as a medium density fiber (MDF) panel, a high density fiber panel (HDF) or a particle panel; wherein the panel has at least one chamfer at least one edge; and a decorative printing layer applied to the panel and to the at least one chamfer.

A floor board including a decorative surface layer applied to a substrate, where the substrate is optionally MDF or HDF material at a side edge thereof, and at least one side edge together with a side edge opposite thereto forming a first pair of opposite side edges of said substrate. The first pair of opposite side edges includes mechanical first and second coupling parts, respectively, allowing the floor board to be coupled at the respective side edges with a similar floor board. Also, a floor board covering consisting of a plurality of the floor boards and a method for manufacturing such floor boards.

This utility model discloses an aluminum-wood composite structure door, including an internal core panel. The core panel includes a first keel and a second keel. A first filler is provided on the inner side of the first and second keels, and a second filler is provided on the outer side of the first and second keels. A veneer laminate is provided on the outer side of the second filler. A multi-layer board is provided on the front and rear sides of the core panel, and a medium-density fiberboard is provided on the outer side of the multi-layer board. The side of the veneer laminate is sealed by a side edge sealing profile. This utility model improves the overall structural strength by setting an aluminum alloy keel inside the door panel, and setting the first filler, second filler, and veneer laminate on the inner and outer sides of the keel to form the core panel. At the same time, multi-layer boards and medium-density fiberboard are connected on the front and rear sides of the core panel through a composite process, and the side of the veneer laminate is sealed by a side edge sealing profile.

The invention relates to the technical field of high polymer materials, and particularly discloses anti-yellowing polyester resin for an MDF plate and a preparation method of the anti-yellowing polyester resin. An antioxidant unit and a formaldehyde reactive unit are simultaneously bonded on a molecular chain of the polyester resin through covalent bonds, and the two functional units are connected to a polyester main chain through flexible chain segments. The preparation method comprises the following steps: firstly, synthesizing a difunctional linking agent of which one end contains an antioxidant group, the other end contains a formaldehyde reactive group and the middle is connected by a flexible chain segment; and carrying out melt polycondensation reaction on the coupling agent serving as an end-capping reagent or a comonomer, polyhydric alcohol and polybasic acid to obtain the target resin. The problems of migration, loss and failure caused by traditional physical addition of small-molecule auxiliaries are fundamentally solved, so that when the obtained polyester resin is used for an MDF plate facing coating, lasting and efficient hot-pressing yellowing resistance and weather yellowing resistance can be provided, the free formaldehyde release amount of a plate can be continuously captured and reduced, and the service life of the plate is prolonged. The decorative property and the environment-friendly property are both improved.

The invention belongs to the technical field of organic compounds and artificial boards, and relates to a whitening agent, a preparation method thereof and application of the whitening agent in whitening type medium density fiberboards, the whitening agent comprises the following components by mass percent: 2-5% of hydrogen peroxide, 0.2-0.6% of sodium silicate, 0.5-1.5% of sodium hydroxide, 0.1-0.4% of water-soluble stilbene fluorescent whitening agent and the balance of water. The preparation method comprises the following steps: sequentially adding the components into water at 60-65 DEG C, stirring and dissolving, and keeping the temperature at 60 DEG C for later use. When being applied, the cleaning agent is added in a wood chip washing process, the mass of the cleaning agent is 1-1.5% of the total mass of cleaning water for the first time, and 0.05-0.08% of the cleaning agent is supplemented per hour subsequently. According to the whitening agent, through the synergistic effect of chemical oxidation and physical color complementing, the whiteness of a fiberboard reaches 31-36 (only 14 in a conventional process), the physical and chemical properties meet the GB / T 11718-2021 standard, and the whitening agent is environmentally friendly, free of residues, simple to prepare and apply, suitable for industrial continuous production and capable of remarkably improving the added value of products.

The utility model discloses a sound insulation door, including door frame and door board, the door board with door frame rotatable connection, the door board is composite layer structure, from outside to inside is in proper order: panel, sound insulation heat preservation gasket, medium density fiberboard and fiber sound absorption board, the panel, sound insulation heat preservation gasket and medium density fiberboard symmetry setting in the both sides of fiber sound absorption board, the door board still includes multilayer damping glue for connecting each material layer. The utility model has beneficial effect in that, through setting up the door board as composite layer structure, has good sound insulation performance, light in weight, and conveniently opens and shuts.

The utility model relates to the technical field of artificial boards, and discloses a combined medium-density fiberboard which comprises a medium-density fiberboard body, a connecting strip is arranged on one side of the medium-density fiberboard body in a protruding mode, a connecting groove matched with the connecting strip in an inserted mode is formed in the other side of the medium-density fiberboard body, and at least one first clamping strip is arranged on the upper surface of the connecting strip. At least one second clamping strip is arranged on the lower surface of the connecting strip, a first clamping groove connected with the first clamping strip in a matched mode is correspondingly formed in the upper surface of the connecting groove, a second clamping groove connected with the second clamping strip in a matched mode is correspondingly formed in the lower surface of the connecting groove, an inserting groove is formed in the middle of the connecting strip, and an inserting strip matched with the inserting groove is arranged in the middle of the connecting groove. According to the utility model, two plates can be quickly spliced and combined, the mounting is more convenient, the mounting efficiency is improved, the plates are not easy to fall off, the stability and tightness are ensured, and the mounting quality is ensured.

The present application relates to a device (1) for processing a narrow side (2) of a wood-based panel (3), in particular a particleboard or MDF panel, comprising an application device (4) with at least one application element (5) for applying a wax (6) to a narrow side surface (7) of the narrow side (2), a processing element (8) for processing the wax (6) previously applied to the narrow side surface (7) and a guiding device (9) for guiding the application element (5) and / or the processing element (8) on the narrow side surface (7) in a direction parallel to a longitudinal axis (10) of the narrow side (2).The processing element (8) has a contact surface (11) on its underside, which is designed and configured to come into direct contact with the narrow side surface (7) during a processing operation in which the wax (6) previously applied to the narrow side surface (7) is processed, thereby distributing the wax (6) on the narrow side surface (7) and preferably incorporating it at least into an upper wood-based material layer (12) of the wood-based panel (3) adjacent to the narrow side surface (7), wherein the processing element (8) can be guided on the narrow side surface (7) by means of the guide device (9) during the processing operation in such a way that the contact surface (11) of the processing element (8) can come into contact with the narrow side surface (7) over the entire length of the narrow side (2).

The invention discloses an anti-static flame-retardant floor based on graphene and a production process thereof, and relates to the technical field of building materials. The anti-static flame-retardant floor based on graphene is prepared by taking a medium-density fiberboard as a base material and coating slurry, the slurry is prepared from the following raw materials in parts by weight: 1 to 1.5 parts of graphene powder, 6 to 12 parts of modified nano silicon dioxide, 18 to 28 parts of modified epoxy resin, 3 to 5 parts of carbon black, 2 to 3 parts of dodecyl trimethyl ammonium chloride, 9 to 16 parts of aluminum hydroxide, 6 to 13 parts of magnesium hydroxide, 7 to 11 parts of ammonium polyphosphate, 4 to 6 parts of pentaerythritol, 5 to 8 parts of melamine, 5 to 7 parts of ethylenediamine and 1 to 1.5 parts of a silane coupling agent KH-550. 0.4-0.7 part of an organic silicon defoaming agent, 3-5 parts of sodium lignin sulfonate and 10-20 parts of deionized water. Graphene is adopted to enhance the anti-static and flame-retardant properties, and a dispersion and curing process is innovated to improve the stability; the material has the characteristics of wear resistance and temperature change resistance and is wide in application scene; the production process is optimized, and the consistency and quality of products are guaranteed; the material is environment-friendly, and has both practicability and economical efficiency.

In the field of decorative floor coverings, decorative panels are known to have a core layer based on MDF (Medium Density Fiberboard) or HDF (High Density Fiberboard) onto which a decorative substrate is bonded to give the panels the desired appearance. The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel, or a wall panel. The invention also relates to a floor covering consisting of a plurality of interlocking panels.

A waterborne external release agent for producing ligno-cellulose composites such as oriented strand board (OSB), particle board (PB) and medium density fiberboard (MDF), which employ isocyanate-based adhesives such as pMDI is provided. The release agent as a formulation includes effective amounts of at least one tertiary ethoxylated fatty amine, effective amounts at least one of an acidic alkyl phosphate ester and an acidic phosphate ester ethoxylate, or combinations thereof, with the balance water. The formulation can also include a defoamer and a nonionic surfactant. The formulation can be applied to mats and / or metal platens when making the ligno-cellulosic composites, wherein the effective amounts of the at least one tertiary ethoxylated fatty amine and the at least one of an acidic alkyl phosphate ester and an acidic phosphate ester ethoxylate, or combinations thereof provide improved release properties, corrosion inhibition for metal surfaces, and minimum film build up when making ligno-cellulosic composites.

The invention discloses a straw composite silent wooden door and a preparation method thereof, and belongs to the technical field of wooden door manufacturing. The wood door sequentially comprises a straw core layer, a wood frame layer, a micro-foaming adhesive layer and a covering layer from inside to outside. Wherein the straw core layer is formed by compounding and curing straw or wheat straw and an improved magnesium oxychloride inorganic adhesive, and the curing degree is 65-70%; the wooden frame layer is formed by splicing quadrilateral or equihexagonal unit blocks processed by small-diameter Chinese fir or poplar; and the covering layer is a medium-density fiberboard and a facing material or a facing plywood. The improved magnesium oxychloride adhesive is prepared from light calcined magnesia, anhydrous magnesium chloride, deionized water, phosphoric acid, nano silicon dioxide and highland barley straw ash according to a specific ratio. The preparation method comprises the three steps of straw core layer preparation, composite door core plate preparation and finished product composite door preparation. The formaldehyde-free improved magnesium oxychloride adhesive is adopted, the formaldehyde release amount is smaller than or equal to 0.1 mg / L, and the straw utilization rate reaches 90% or above; through the synergistic effect of the porous structure of the straw core layer and the micro-foaming adhesive layer, the sound insulation amount is larger than or equal to 35 dB and is increased by 40% or above compared with a traditional wooden door; due to the wood frame and straw core layer composite structure, the static bending intensity of the core plate is larger than or equal to 18 MPa, and the internal bonding strength is larger than or equal to 0.8 MPa; the production cost is reduced by 30%-40% compared with that of a solid wood door, and the composite material can be widely applied to the fields of indoor silence doors and environment-friendly home building materials.

This project aims to provide a novel and useful method for extracting essential oils, while also promoting the effective utilization of peeled cores. [Solution] The method for extracting essential oils comprises a grinding step of grinding wood raw material to obtain a pulverized product, a distillation step of distilling the pulverized product to obtain a distillate, a separation step of separating the distillate into essential oil and aromatic distilled water, and a water removal step of removing trace amounts of water contained in the essential oil obtained in the separation step. In the water removal step, it is preferable to remove frozen water by cooling the essential oil obtained in the separation step to a temperature below the freezing point of water and higher than the freezing point of the essential oil components. It is preferable to use the peeled core 4 remaining after obtaining veneers 3 continuously with a rotary lathe as the wood raw material. The high-purity essential oil obtained by the present invention can be used for the same purposes as in the conventional method, and the pulverized product after essential oil extraction can be reused alone or mixed with other materials in the manufacture of wood fiberboard such as MDF or wood board such as particleboard.

The application discloses a kind of fiberboard powder coating fire-retardant polyester resin and preparation method thereof, belong to coating technical field.The resin is made into copolymerization by polyol component 100 parts, dibasic acid component 4560 parts, end-capping agent 1220 parts, catalyst 0.150.55 parts and antioxidant 0.150.35 parts according to weight parts;Polyol contains DOPOSiN dihydric alcohol 6578 parts, dihydric alcohol contains bio-based 2,5 furan dicarboxylic acid 4055 parts, end-capping agent uses perfluorobutyl ethyl trimellitic anhydride.By constructing phosphorus nitrogen silicon fluorine four-element halogen-free synergistic system, through furan ring rigid structure balance low-temperature solidification and storage stability, fluorine-containing end-capping improves substrate adhesion, solve traditional halogen-based flame retardant not environmental protection, low-temperature solidification and storage stability contradiction, fiberboard adhesion problem, suitable for high-performance flame-retardant powder coating for medium density fiberboard, and has wide industrialization prospect.

The application discloses a kind of flame-retardant medium density fiberboard and preparation method thereof, by weight parts, including the following raw materials: modified wood fiber 100-120 parts, modified flame retardant 30-40 parts, adhesive 50-60 parts, filler 5-10 parts, sodium silicate 5-9 parts, curing agent 15-20 parts.The flame-retardant medium density fiberboard provided by the application, by oxidation activation treatment to pretreated wood fiber, then graft modification is carried out, improve the flame retardancy of wood fiber, while adding modified flame retardant, and supplemented by filler, sodium silicate, epoxy resin and curing agent, so that the medium density fiberboard obtained has good mechanical properties and flame retardant performance, has good application prospect.

The invention relates to a double belt press for producing wood-based panels, in particular medium density fiber boards, having a first endless belt and a second endless belt, the first endless belt being guided around two guide rollers and the second belt being guided around two guide rollers, wherein the first endless belt is arranged at least sectionally above the second endless belt, and wherein a product gap is defined between a descending section of the first belt and an ascending section of the second belt; and having a plurality of spray nozzles for applying a release agent to the first belt and / or the second belt, wherein the spray nozzles are two-substance spray nozzles for generating a spray of the release agent by using compressed air.

The invention relates to the technical field of artificial board processing, and discloses a method for preparing a low VOCs type medium density fiberboard based on a wood fiber hydroxyl complexing sealing technology. The method comprises the following steps: firstly, carrying out steam explosion pretreatment on wood fibers, destroying the crystal structure of the wood fibers and activating hydroxyl; carrying out carboxylation and condensation polymerization on the activated fibers by adopting biomass-based polycarboxylic acid and amine compounds, and constructing complexing sites on the surfaces of the fibers; then metal ions are introduced to be subjected to a complexation reaction with the fibers, and stable sealing of hydroxyl in fiber molecules is achieved; and finally, sizing by adopting a modified bean-based protein adhesive, and carrying out paving, pre-pressing and hot press molding. Through the synergistic effect of activation, crosslinking and complexation, a VOCs release channel is blocked from the source, the formaldehyde release amount of the prepared fiberboard is smaller than or equal to 0.025 mg / m < 3 > (ENF level), the total VOCs release amount is smaller than or equal to 200 micrograms / m < 3 >, the odor level is remarkably reduced, meanwhile, the mechanical property is excellent, and outstanding environmental friendliness and practicability are achieved.

The invention belongs to the technical field of PCB (printed circuit board) processing, and discloses a composite backing plate with two sides coated with aluminum foils and a preparation method of the composite backing plate, the composite backing plate comprises a medium-density fiberboard base material, and the surfaces of the two sides of the base material are coated with the aluminum foils through phenolic resin glue. The phenolic resin glue comprises the following raw materials in parts by weight: 90-110 parts of phenolic resin, 18-25 parts of ethanol, 5-7 parts of phenolsulfonic acid, 0.5-1.5 parts of a coupling agent, 4-8 parts of modified graphite and 10-14 parts of modified lignin. According to the composite base plate with the aluminum foils attached to the two faces, the aluminum foils are attached to the surface of the medium-density fiberboard base material through the phenolic resin glue, the modified graphite and the modified lignin are added into the phenolic resin glue, the modified graphite constructs a heat-conducting insulating network, the modified lignin provides toughness support, and the modified graphite and the modified lignin cooperate with each other; the base plate is good in heat dissipation, free of layering and long in service life during high-speed drilling.

A method for manufacturing a wood composite panel, in particular an MDF-panel, comprises the following steps: a. providing and mixing soy flour and water in a weight ratio of about 10 to 45% to form a soy solution; b. introducing the soy solution to a high-pressure blow line containing wood fibers; c. introducing resin to the high-pressure blow line to form a soy solution wood fiber resin mixture; d. pre-drying the soy solution wood fiber resin mixture to form a pre-dried soy flour wood fiber resin mixture; and e. hot-pressing the pre-dried soy flour wood fiber resin mixture into the wood composite panel.

The utility model provides an MDF (medium density fiberboard) powder coating curing device which comprises a drying oven body, a drying oven base arranged at the bottom end of the drying oven body, and a step groove formed in the drying oven base. The sliding seat is in sliding connection with the stepped groove of the drying oven base, the bottom end of the inner baffle is fixedly connected with the sliding seat, and the inner baffle is used for blocking the inner side of the feeding port of the drying oven body; the utility model relates to the technical field of coating curing devices, after thermal curing of materials in the drying oven body is completed, the outer baffle is separated from the feeding port of the drying oven body, the materials located at the top of the sliding seat are moved out of the drying oven body, and the outer baffle is matched with the feeding port of the drying oven body. At the moment, the inner baffle seals the feeding port of the drying oven body, heat dissipation in the drying oven body in the material cooling process is reduced, and therefore the temperature in the oven can be rapidly increased when the drying oven body is used for the second time.

The production process for particleboard, MDF, or HDF includes the recycling stage of these materials, yielding recycled wood chips and / or fibers. This process involves wetting, heating, and pressurizing the particleboard, MDF, and / or HDF, maintaining them at a high temperature for a specific period. Finally, the process involves using the recycled wood chips and / or fibers as raw material in the production of particleboard, MDF, or HDF.

The utility model relates to the technical field of artificial boards, and discloses a multi-layer composite medium-density fiberboard which comprises a fiberboard core board layer, a flame-retardant layer and a fiberboard surface layer are sequentially bonded on the upper surface of the fiberboard core board layer from bottom to top, and a sound insulation layer and a fiberboard bottom layer are sequentially bonded on the lower surface of the fiberboard core board layer from top to bottom. The fiberboard core board layer comprises a reinforced skeleton layer, and an upper base layer and a lower base layer which are bonded on the upper and lower surfaces of the reinforced skeleton layer; the reinforcing framework layer comprises a plurality of cylindrical supporting barrels arranged in an array mode, the adjacent supporting barrels are connected through transverse and longitudinal connecting rib plates, a center column is arranged in the center of the interior of each supporting barrel, and the center columns and the supporting barrels are connected into a whole through reinforcing ribs. According to the utility model, multiple layers are compounded, so that the whole board has good flame retardance, sound insulation and compression resistance.

The present invention aims to effectively utilize peeled cores and provides a new and useful method for extracting essential oils. [Solution] This essential oil extraction method comprises the following steps: a preparation step of preparing the peeled core 4 remaining after cutting a log 1 to continuously obtain veneers 3; a crushing step of crushing the peeled core to obtain a crushed material; a distillation step of distilling the crushed material to obtain a distillate; and a separation step of separating the distillate into essential oil and aromatic distilled water. It is preferable that the method further comprises a water removal step of removing minute amounts of water contained in the essential oil obtained in the separation step. The essential oil obtained by this method can be used in the same applications as conventional methods, and the crushed material after essential oil extraction can be reused alone or mixed with other materials in the production of wood fiberboards such as MDF and wood boards such as particle board.