The present invention relates to a method and an apparatus (40, 50) for coating an uneven surface of a workpiece (W), wherein the apparatus (40, 50) comprising a first feeding device (41), through which a coating material (10) applicable to a workpiece (W) is fed, the coating material (10) comprising at least one weakened area (10a), a joining device for the application of the coating material to at least two workpiece sides (W1-W), wherein the at least one weakening area (10a) being positioned in the transition section of the at least two workpiece sides (W1-W2), and a second feeding device (70), through which the workpiece is fed and the transition section of the two workpiece sides (W1, W2) being formed to at least partially fill the weakened area of (10a) of the coating material (10) which is positioned in the transition section during the application of the coating material.

The present invention relates to a method and an apparatus (40, 50) for coating an uneven surface of a workpiece (W), wherein the apparatus (40, 50) comprising a first feeding device (41), through which a coating material (10) applicable to a workpiece (W) is fed, the coating material (10) comprising at least one weakened area (10a), a joining device for the application of the coating material to at least two workpiece sides (W1-W), wherein the at least one weakening area (10a) being positioned in the transition section of the at least two workpiece sides (W1-W2), and a second feeding device (70), through which the workpiece is fed and the transition section of the two workpiece sides (W1, W2) being formed to at least partially fill the weakened area of (10a) of the coating material (10) which is positioned in the transition section during the application of the coating material.

A method for reinforcing and enhancing bamboo/wood materials employs a sulfuric acid hydrolysis method to prepare a nanocellulose dispersion solution; then with the nanocellulose dispersion solution having a certain concentration as a precursor, nano zinc oxide is in-situ produced on the surface of the nanocellulose; and the cellulose dispersion solution is improved by compounding. The obtained treatment solution is impregnated into the pores of bamboo/wood materials in a specific manner to play the role of filling, binding and consolidating the bamboo/wood tissues, so that the treated bamboo/wood materials have enhanced hardness, strength and dimension stability, and significantly-improved mildew- and corrosion-resistance. The method is suitable for the reinforcing and enhancing treatment of wood materials with relatively-loose texture, such as fast-growing wood and wood from a planted forest, and is also suitable for the reinforcement and restoration of slightly-rotten wood materials.

The present disclosure provides a method for preparing a piezoresistive sensor material, including: preparing a wood fiber aerogel; conducting dopamine self-polymerization on the surface of the aerogel to obtain a wood fiber-based hydrogel; soaking the wood fiber-based hydrogel in a nano conductive phase suspension or a nano conductive phase precursor to form a conductive phase-loaded wood fiber-based hydrogel; subjecting the conductive phase-loaded wood fiber-based hydrogel to reaction with an aqueous solution including a polyelectrolyte monomer, a crosslinker, an initiator and a catalyst to form a conductive phase-wood fiber-based hydrogel composite; and complexing the composite with metal ions. The present disclosure further discloses a piezoresistive sensor including the sensor material, and a preparation method thereof. The sensor material prepared by the method of the present disclosure has excellent mechanical strength and ionic conductivity, and a sensor further prepared has extremely-high sensitivity.

A method for treating a piece of wood impregnates the piece of wood with a water repellent, wherein the water repellent is solid at ambient temperatures. The method includes the steps of providing a piece of wood to be treated; heating the piece of wood for a predetermined period of time, the piece of wood being heated at a temperature A; subsequently immersing at least a portion of the piece of wood in a bath of liquefied water repellent, the bath being at a temperature B, for a predetermined period of time. Thereafter the piece of wood is removed from the bath and allowed to cool. The temperature A is above 100 C. and the temperature B is below 100 C. but above a liquefying point for the water repellent, and a differential between temperatures A and B is at least 60 C.

A system for treating wood (30), comprising: a treatment vessel (14) configured to receive at least one wood stack (4) for treatment, and a stack holding system (2) for holding a wood stack (4), the stack holding system (2) comprising: a frame (6), configured to support the wood stack (4); a first element (8), connected to the frame (6) near an upper side of said frame (6), configured to exert a first, downward force on the wood stack (4); and a second element (10), connected to the frame (6) near a lower side of said frame (6), configured to exert a second force on the wood stack (4) in a direction opposite said first force. The invention also comprises a method for treating wood, using a system for treating wood according to the invention.

A system for treating wood (30), comprising: a treatment vessel (14) configured to receive at least one wood stack (4) for treatment, and a stack holding system (2) for holding a wood stack (4), the stack holding system (2) comprising: a frame (6), configured to support the wood stack (4); a first element (8), connected to the frame (6) near an upper side of said frame (6), configured to exert a first, downward force on the wood stack (4); and a second element (10), connected to the frame (6) near a lower side of said frame (6), configured to exert a second force on the wood stack (4) in a direction opposite said first force. The invention also comprises a method for treating wood, using a system for treating wood according to the invention.

A process for treating lignocellulosic pieces with a water-soluble lignocellulosic material preservative. The process comprises the step of contacting the lignocellulosic pieces with a water-based preservative solution having a contact temperature between about 70 C. and about 95 C., the water-based preservative solution containing the water-soluble lignocellulosic material preservative in a concentration above about 25% wt. A lignocellulosic treatment apparatus for treating lignocellulosic pieces is also provided.

The present invention relates to a method for drying wood by using microwaves. The method for drying wood by using microwaves, according to an embodiment of the present invention, comprises the steps of: preparing wood; wrapping at least a portion of the wood by using a wrapping member; applying microwaves to the wood wrapped with the wrapping member to raise the temperature inside the wrapping member; removing the wrapping member from the wood wrapped with the wrapping member; and drying moisture of an outer layer of the wood from which the wrapping member has been removed.

Systems and methods for treating wood products are provided. The methods comprise preconditioning the wood product by irradiating one or more surfaces of the wood product with infrared (IR) and/or ultraviolet (UV) radiation and subsequently treating the wood product. The systems comprise one or more fixtures positioned to irradiate one or more surfaces of the wood product with IR and/or UV radiation, wherein each fixture comprises a reflector and a radiation source.