A method of manufacture of medium and high density fibreboard with moisture and mildew resistance and low formaldehyde emission, which includes the steps of: (a) providing wood chips; (b) pre-steaming; (c) refining the wood chips into fibers and adding 250-800 kg/m.sup.3 urea-formaldehyde resin adhesive, mildew inhibiting agent, fireproof bonding agent, nigrosine solution with a mass percentage of nigrosine in absolutely dried fiber of 1-1.2%, 6-8 kg/m.sup.3 refined paraffin and 1.5-2 kg/m.sup.3 curing agent; (d) feeding activated carbon of 100-200 mesh to mix with the fibers and then drying the fibers to a water content between 8-10%; (e) separating qualified fibers to measuring silo; (f) laying the fibers onto a mat formation platform uniformly to form a fiber mat by pre-pressing; (g) pre-heating the fiber mat; and (h) processing continuous hot-pressing to form a raw board. The resulting fiberboard is black in color, has good physical properties and low formaldehyde emission rate.

The disclosure relates to a method for producing a wood material panel with at least one layer with an inhomogeneous density profile, including the steps: scattering a multitude of wood particles to produce a particulate cake, pressing the particulate cake to form a layer of the wood material panel, and scattering different pre-determined quantities of wood particles in at least two areas within the particulate cake.

A cloud-based system network for verifying and documenting prefabricating Class-A fire-protected wood-framed buildings produced from a prefabricated Class-A fire-protected wood-framed building factory system supporting multiple production lines for producing Class-A fire-protected wood-framed components including wall panels, floor panels, stair panels, floor trusses, and roof trusses for use in constructing custom and pre-specified prefabricated Class-A fire-protected wood-framed buildings. The system network includes (i) a data center with web, application and database servers for supporting a web-based site for hosting digital images of barcoded/RFID-tagged certificates attached to prefabricated Class-A fire-protected wood-framed building components, and other certification documents, and (ii) mobile smart-phones used to capture digital photographs and video recordings of Class-A fire-protected wood-framed building sections, and upload the captured digital images to the data center, for each prefabricated wood-framed building project, so that building purchasers, insurance companies, builders, architects and other stakeholders can review such certifications and documentations during the prefabrication of wood-framed buildings from the factory system.

The sheet manufacturing apparatus includes an accumulation unit that accumulates a material containing a fiber and a resin; a heating unit that includes a first rotating body and a second rotating body and heats a sediment accumulated by the accumulation unit; a displacement mechanism that displaces the heating unit to a first position where the first rotating body and second rotating body nip and heat the sediment and a second position where the first rotating body and the second rotating body are separated from each other; and a controller that displaces the first rotating body and the second rotating body to the first position after heating the first rotating body and the second rotating body in the second position.

A sheet manufacturing apparatus includes a drum unit having a plurality of openings, a web forming unit that has a deposition surface, on which material containing fibers that has passed through the openings is deposited, and forms a second web on the deposition surface, a sheet forming unit that processes the second web and forms a sheet, and a control unit that controls a basis weight of the second web deposited on the deposition surface in a direction crossing a transport direction of the second web.

The disclosure relates to a wood material panel pressing device for pressing a fibrous press cake in order to produce a wood material panel including an inspection device that is designed to emit a signal in the event of a disruption. According to the disclosure, the wood material panel pressing device for pressing a fibrous press cake for producing an HDF panel or an MDF panel includes: an inspection device, which is designed to emit a signal in an event of a disruption, wherein: the inspection device has a camera and an evaluation unit, the camera is arranged in an intake region of the wood material panel pressing device; and the evaluation unit automatically emits a signal in an event of a blow-out of press cake particles.

The disclosure relates to a wood material panel pressing device for pressing a fibrous press cake in order to produce a wood material panel, including an inspection device that is designed to emit a signal in the event of a disruption. According to the disclosure, the inspection device has a camera and an evaluation unit, the camera is arranged in an intake region of the wood material panel pressing device and the evaluation unit is designed to automatically carry out a method featuring the steps: (i) continuous recording of images (B) of the intake region, (ii) continuous detection of measurement data for evaluation region pixels of images (B), which belong to a predefined evaluation region comprising at least one region bordering a target horizontal of the fibrous press cake at the top, such that evaluation data is obtained, and (iii) emission of a signal if the evaluation data changes by more than a predefined tolerance value (D.sub.T).

A method of manufacture of medium and high density fibreboard with moisture and mildew resistance and low formaldehyde emission, which includes the steps of: (a) providing wood chips; (b) pre-steaming; (c) refining the wood chips into fibers and adding 250-800 kg/m.sup.3 urea-formaldehyde resin adhesive, mildew inhibiting agent, fireproof bonding agent, nigrosine solution with a mass percentage of nigrosine in absolutely dried fiber of 1-1.2%, 6-8 kg/m.sup.3 refined paraffin and 1.5-2 kg/m.sup.3 curing agent; (d) feeding activated carbon of 100-200 mesh to mix with the fibers and then drying the fibers to a water content between 8-10%; (e) separating qualified fibers to measuring silo; (f) laying the fibers onto a mat formation platform uniformly to form a fiber mat by pre-pressing; (g) pre-heating the fiber mat; and (h) processing continuous hot-pressing to form a raw board. The resulting fiberboard is black in color, has good physical properties and low formaldehyde emission rate.

In one embodiment, a method for making a high density structural composite includes depositing a plurality of fibrous materials on or adjacent a first plate or surface. A polymer liquid is deposited onto the plurality of fibrous materials to form a composite mixture. A first cyclic pressure is applied onto the composite mixture to compress the composite mixture. In some embodiments, the cyclic pressure may then be reduced to a valley pressure to complete a pressurization cycle. In some instances, the valley pressure may be below atmospheric pressure to induce trapped air and volatile gases to escape from the composite mixture before curing. The pressurization cycle may be repeated. A second pressure, which may be a constant pressure in some embodiments, may be applied to the composite mixture using, in some embodiments, a second plate until the polymer liquid has at least partially cured or partially solidified.

An apparatus for forming monolithic compressed wood pallets with increased load capacity includes

a storage component having a chamber for collecting the mixture, inside which a first conveyor belt is accommodated for feeding a uniform layer of mixture toward an outlet. The first belt is wound around at least one motorized roller and entrained by it with a feed speed.

The apparatus also includes a pressing component with a lower mold part and an upper mold part between which a receptacle for forming a pallet is provided.

A second conveyor belt is interposed between the storage component and the pressing component. The apparatus further includes a component for modulating at least one among feed speed, the advancement speed, and the translation speed so as to obtain adjustment of quantity of mixture loaded/unloaded on/from upper portion of the second belt along an extension of the mat.