70results about "Wood damping" patented technology

Wood template-supported phase change material (PCM) composite having thermal energy storage applications. A wood template-supported PCM may include a wood template that has had at least a portion of its xylan and / or lignin removed and saturated with a PCM. The PCM may be stabilized with a cross linkable network for improved infiltration into the wood template. The wood template-supported PCM composite may be formed by extracting xylan and / or lignin from the wood to create a wood template, densifying at least a portion of the wood template, and inserting a PCM into the wood template.

The invention discloses a microwave-based solid wood floor blank heat treatment method, which comprises microwave heating treatment and moisture content adjustment treatment on a floor blank, and is characterized in that microwave is used as a heat source, and the internal target temperature of wood is obtained by accurately controlling the microwave heating treatment time. According to the method, the technical problems that in the existing wood floor blank heat treatment process, a heating system and equipment are complex, the heat treatment period is long, the heat treatment temperature and the heat treatment duration cannot be accurately controlled, and continuous treatment cannot be carried out are solved, microwaves serve as a heat source, and the internal target temperature of wood is obtained by controlling the treatment time; the treatment process can be accurately controlled according to process requirements, and the method has the advantages of simple equipment, high heating efficiency, strong process controllability, good treatment quality and short treatment period.

The invention belongs to the technical field of wood modification, and particularly relates to a carbon quantum dot optimized furfuryl alcohol modified material and a preparation method thereof. The preparation method comprises the following steps that wood is treated with carbon quantum dot / furfuryl alcohol modified liquid through a vacuum pressurization impregnation method, then the wood is wrapped with a high-temperature-resistant waterproof material, and aging is conducted at the room temperature. And finally, the wood is heated and cured, and therefore the carbon quantum dot optimized furfuryl alcohol modified material is obtained. According to the carbon quantum dot / furfuryl alcohol modified liquid, the carbon quantum dots serve as a catalyst to catalyze curing of furfuryl alcohol in wood and also serve as a wood modifier to endow the wood with excellent corrosion resistance, and multiple effects are achieved through one agent. According to the carbon quantum dot optimized furfuryl alcohol modified material, the problem that the toughness of the furfuryl alcohol modified material is reduced is solved, overall balance and optimization of the dimensional stability, the strength, the toughness and the biological degradation resistance of wood are achieved, and the problem that the material color of the modified material is blackened is solved.

The invention relates to a mildew-proof and moth-proof bamboo chip and a treatment process thereof, and belongs to the technical field of bamboo chip preparation, and specifically, the treatment process comprises the following steps: washing and soaking a bamboo chip, treating the bamboo chip in an environment of 120-140 DEG C and 75-85 RH%, spraying a NaOH solution, then carrying out first heat treatment, dipping the treated bamboo chip with a compound enzyme solution, adjusting the pH value of the system to 4.5-5.0, and carrying out second heat treatment on the bamboo chip; adding a chelating agent, reducing the temperature of the system to 45-50 DEG C, adding an inorganic mildew removing agent, and treating for 1-2 hours; heating the bamboo chips to 160-180 DEG C, and treating the bamboo chips for 2-2.5 hours; and drying and shaping treatment: drying the bamboo chips at 40-50 DEG C, and carrying out hot pressing and shaping to obtain the mildew-proof and mothproof bamboo chips. According to the process, through optimization design and combination of physical, chemical and biochemical treatment means, the living environment of insects and fungi is fundamentally destroyed, the nutrition source of the insects and fungi is blocked, and the long-acting and environment-friendly mildew-proof and mothproof effects are achieved.

The invention provides a solid wood floor secondary balance humidifying method based on dynamic moisture content closed-loop control. The solid wood floor secondary balance humidifying method comprises the steps that a wood digital structure model is established; based on the wood digital structure model, a deep learning algorithm is used for recognizing a high-density area and a low-density area, laser micropore machining is conducted on the high-density area, surface sealing treatment is conducted on the low-density area, and preprocessed wood is obtained; sequentially carrying out silane coupling agent pretreatment and titanate coupling agent modification treatment on the pretreated wood, and automatically adjusting temperature and humidity parameters in a cabin when detecting that the moisture content drift is greater than 0.3%, so as to control the moisture content of the wood in a range of 8-10%; and the wood obtained after dipping treatment is subjected to programmed heating curing treatment, heat of high-temperature gas generated in the curing process is recycled through a heat exchanger and used for a humidity adjusting process, and a cured solid wood floor product is obtained.

The utility model relates to the field of raw wood processing, in particular to a raw wood rotary-cut automatic sheet collecting device which comprises a supporting frame and a discharging mechanism. A conveying device used for conveying wood chips is arranged on the right side of the supporting frame, and a discharging mechanism used for collecting the wood chips is fixedly connected to the left side of the supporting frame. The discharging mechanism comprises a guide frame, a guide rod, a receiving block and a compression spring a, the guide frame is fixedly connected to the left side of the supporting frame, a frame plate used for guiding wood chips is arranged on the upper portion of the guide frame, the receiving block is slidably connected to the lower portion of the guide frame and located below the frame plate of the guide frame, and the compression spring a is fixedly connected between the guide frame and the receiving block. According to the wood chip collecting device, the guide frame is arranged to guide the collecting position of the wood chips and is matched with the material receiving block to collect the wood chips, the wood chips are automatically and neatly collected, the wood chip collecting effect is improved, the collecting process is not affected by people, and therefore the collecting efficiency can be improved.

The utility model provides a bamboo board moisture balancing device, and relates to the technical field of moisture balancing devices. The bamboo board moisture balancing device comprises a frame body, a humidifier is arranged on one side of the frame body, a water tank is arranged on the other side of the frame body, a plurality of spraying holes are formed in the middle of the frame body, a supporting frame is fixed to the middle of the frame body, a stepping motor is fixed to the middle of the supporting frame, and a driving frame is fixed to the driving end of the stepping motor. A sliding frame is slidably connected to the outer surface of the driving frame, a groove is formed in the middle of the sliding frame, a rack frame is fixed to one end of the sliding frame, and a plurality of fixing rods are rotatably connected to the middle of the frame body. According to the bamboo board moisture balancing device, the stepping motor drives the driving frame to rotate, the effect of turning over a bamboo board is achieved, the effect of improving the using effect of the moisture balancing device is achieved, the handle is pulled manually to rotate, the effect of limiting the bamboo board is achieved, and the effect of improving the using stability of the moisture balancing device is achieved.

Provided is a method for producing colored wood, the method including: a step of impregnating a block of wood with an organic acid aqueous solution containing an organic acid; and a step of performing steam treatment at high temperature and high pressure on the block of wood in a wet state of being impregnated with the organic acid aqueous solution while keeping the block of wood in the wet state. In the steam treatment, the temperature is 110° C. or more and 160° C. or less and the pressure is a saturated steam pressure at the temperature.

This invention relates to the field of wood processing technology, and provides a novel method for preparing slicing from the decay and softening of extra-hardwood. The method includes the following steps: immersing a wood sample in a water-filled container, first applying a vacuum, then depressurizing and maintaining the pressure for a period of time to allow liquid water to penetrate the wood cell cavities; heating the immersed sample and applying a vacuum again to cause the liquid water to boil and vaporize; extracting the sample after the bursting treatment with cold and hot water sequentially to remove extractives from the wood and reduce its decay resistance; adjusting the moisture content; treating the sample with brown rot fungi to cause decay and softening on the axial surface of the sample; soaking the sample in water and then freezing it until it is solid, followed by slicing. This invention can successfully produce slicings of extra-hardwood, providing a strong theoretical foundation and technical means for studying the structure of extra-hardwood, predicting its physical and mechanical properties, and improving its high-value-added processing and utilization.

This invention discloses a method for preparing archaeological-style wood for cultural relic conservation research, belonging to the field of cultural relic conservation technology. The method includes: wood selection and pretreatment; gradient-zone degradation treatment, constructing a temperature gradient field, radiation gradient field, or gas concentration gradient field to form a structure with gradually changing degradation levels; directed colonization and metabolism of microorganisms, introducing microbial communities with the ability to degrade cellulose, hemicellulose, or lignin in stages; transitional environment simulation, periodically regulating temperature, humidity, and gas composition; and stabilization and termination treatment, using gamma-ray irradiation or ethylene oxide gas fumigation. This invention, through the synergistic effect of gradient degradation, staged microbial colonization, and environmental simulation, prepares archaeological-style wood with continuous gradient changes in chemical composition and microstructure, providing a high-fidelity and controllable experimental sample for cultural relic conservation research.

The invention relates to the technical field of pine needle plate processing, in particular to a pine needle plate processing raw material pine needle material humidity adjusting control device which comprises a lower bent spraying pipe and an upper bent spraying pipe, the upper bent spraying pipe is fixedly installed above the lower bent spraying pipe in a communicating mode, and the lower bent spraying pipe and the upper bent spraying pipe are the same in structure. The upper bent spraying pipe is vertically installed above the lower bent spraying pipe in a crossed mode, a pine needle plate containing area is defined by the crossed position of the lower bent spraying pipe and the upper bent spraying pipe, the air humidity detector is fixedly installed on the upper bent spraying pipe, the stand columns are symmetrically and fixedly installed on the sides of the upper bent spraying pipe, the rotating self-adjusting columns are movably installed on the stand columns, and the rotating self-adjusting columns are movably installed on the rotating self-adjusting columns. A binding ring piece is arranged on the top of the rotary self-adjusting column, and a lifting rope winding and unwinding machine is arranged above the binding ring piece. Water is fed in one position, two pipes are communicated, multi-face spraying is achieved, the wetting efficiency is extremely high, pine needle boards can be automatically dried, and finally the insides and outsides of the boards are consistent in wettability.

The invention relates to a composite beam having a hollow profile (2). The invention relates to a hollow profile (2) comprising or consisting of aluminum or an aluminum alloy or other material, the hollow profile (2) having an inner space (4) and a core (3) arranged in the inner space, the core (3) comprising or consisting of wood. The core (3) is arranged without play in the interior (4) and is pressed against an inner wall (8) of the hollow profile (2) from each side in the cross-sectional direction. The invention also relates to a method and a device.

The utility model discloses a spraying device for a multi-layer plate after hot pressing, which comprises a working frame, a spraying mechanism, a driving mechanism and a water collecting piece, sliding rails are fixedly arranged on two sides of the top of the working frame, and sliding blocks are arranged on the two sliding rails in a sliding manner; the spraying mechanism comprises a supporting frame, a spraying pipe, a water bucket and a connecting hose, the bottom end of the supporting frame is fixedly connected to the top of the sliding block, the spraying pipe is fixedly arranged on the supporting frame, a plurality of spraying heads are evenly arranged on the spraying pipe in the length direction, one end of the connecting hose communicates with the interior of the spraying pipe, and the other end of the connecting hose extends into the water bucket; the driving mechanism is arranged on the working frame, an auxiliary frame is arranged on the side portion of one side of the working frame, and the water collecting piece is arranged at the bottom of the working frame and on the auxiliary frame. According to the spraying device, the driving mechanism drives the supporting frame to reciprocate on the working frame, meanwhile, water mist sprayed by the spraying heads falls on the surfaces of the multiple layers of plates, the moisture of the plates is increased, and deformation is prevented; and water drops dripping from the multi-layer plate can be collected by the water collecting piece.

The invention discloses an optimization treatment method for wood for musical instruments. The optimization treatment method comprises the steps of low-temperature forced circulation drying treatment, low-temperature vacuum drying treatment, content regulation and control treatment, accelerated aging treatment and humidity regulation and balance treatment. The accelerated aging treatment comprises high-temperature treatment and low-temperature moisture absorption treatment, the oxygen content of the treatment environment is controlled in the high-temperature treatment process, and the two types of treatment are cyclically alternated for 2-8 times. The method has the advantages of being efficient, environmentally friendly, low in cost, free of additives, capable of keeping the original characteristics of wood and the like, the optimization treatment period of the wood is shortened, and the acoustic performance and the dimensional stability of the wood are further improved while the natural characteristics of the wood are kept to the maximum extent.

A device for continuous sterilization of a lignocellulosic substrate, the device is characterized in that a supply tool for supplying the substrate to a housing of a sterilization chamber comprises a substrate supply conduit with a substrate supply mechanism arranged therein, and an output of the substrate supply conduit is coupled to an input to the housing of the sterilization chamber, and a substrate discharge tool for discharging the substrate from the sterilization chamber comprises a substrate discharge conduit with a substrate discharge mechanism arranged therein, and an input of the substrate discharge conduit is coupled to an output from the housing of the sterilization chamber, and a ratio between a cross-sectional area of the substrate supply conduit and a cross-sectional area of the housing of the sterilization chamber and a ratio between a cross-sectional area of the substrate discharge conduit and the cross-sectional area of the housing of the sterilization chamber is from 0.0006:1 to 0.5:1. Also, a method for continuous sterilizing a lignocellulosic substrate has been developed.

The invention relates to wood treatment equipment and a wood treatment method. The wood processing equipment comprises a shell, a wood processing device and a control device, wherein a containing cavity is formed in the shell; the heating mechanism is connected with the shell; the pressure adjusting mechanism is communicated with the accommodating cavity, and the pressure adjusting mechanism is configured to be used for extracting gas in the accommodating cavity; the spraying mechanism is communicated with the containing cavity, and the spraying mechanism is configured to be used for spraying towards the interior of the containing cavity. According to the wood treatment equipment, the moisture of the inner core and the outer surface of the wood to be treated mainly escapes at the high-temperature stage at the same time by adjusting the humidity and reducing moisture escape in the initial temperature rising stage, so that the moisture escapes uniformly, the wood is stressed uniformly, the defects of cracking, deformation and the like do not occur easily, and the wood treatment quality is improved.

The invention provides a method of producing a piece of delignified wood having a porous structure, said method comprising: chemically treating a piece of natural wood to remove at least 90% of lignin from the natural wood while substantially retaining cellulose-based lumina of the natural wood, thereby producing a piece of delignified wood; after the removing, drying the piece of delignified wood by freeze drying or critical point drying, such that the cellulose-based lumina remain open or unobstructed in a cross-sectional view; and after the drying, further chemically treating the piece of delignified wood to be hydrophobic or resistant to weather or salt water, or forming or depositing a coating on exterior surfaces of the delignified wood. The unique microstructure and composition of the delignified wood can provide advantageous thermal insulation properties, among other advantages described herein.

A process for producing fiber from shredded wood, achieving simple and improved plasticization of shredded wood, particularly waste wood chips, while maintaining or significantly reducing energy consumption compared to the plasticization of fresh wood chips. To achieve this, the process involves continuously evacuating air trapped within the shredded wood by applying a vacuum to the wood before preheating. Alternatively, the process involves continuously evacuating air trapped within the shredded wood by applying a vacuum to the wood after preheating and before compaction and dewatering.

The present application belongs to the technical field of wood modification, and particularly relates to a carbon quantum dot optimized furfuryl alcohol modified material and a preparation method thereof. The preparation method comprises the following steps: treating wood by a vacuum pressurized impregnation method with a carbon quantum dot / furfuryl alcohol modification liquid, then wrapping the wood with a high-temperature resistant waterproof material, and aging at room temperature. Finally, the wood is heated and solidified to obtain the carbon quantum dot optimized furfuryl alcohol modified material. The carbon quantum dot / furfuryl alcohol modification liquid of the present application realizes one agent with multiple effects, because the carbon quantum dots not only act as catalysts to catalyze the solidification of furfuryl alcohol in wood, but also act as wood modifiers to endow wood with excellent corrosion resistance. The carbon quantum dot optimized furfuryl alcohol modified material of the present application solves the problem of decreased toughness of furfuryl alcohol modified material, realizes the overall balance and optimization of the size stability, strength, toughness and biological degradation resistance of wood, and solves the problem of blackening of the color of the modified material.

The invention provides a method of producing a piece of delignified wood having a porous structure, said method comprising: chemically treating a piece of natural wood to remove at least 90% of lignin from the natural wood while substantially retaining cellulose-based lumina of the natural wood, thereby producing a piece of delignified wood; after the removing, drying the piece of delignified wood by freeze drying or critical point drying, such that the cellulose-based lumina remain open or unobstructed in a cross-sectional view; and after the drying, further chemically treating the piece of delignified wood to be hydrophobic or resistant to weather or salt water, or forming or depositing a coating on exterior surfaces of the delignified wood. The unique microstructure and composition of the delignified wood can provide advantageous thermal insulation properties, among other advantages described herein.

The present invention relates to the technical field of artificial board processing, and specifically discloses a hot press outlet board surface spraying and humidifying device, comprising a roller conveyor device, an infrared imager is arranged above the roller conveyor device, the infrared imager is electrically connected to a control cabinet, a spray device is arranged downstream of the infrared imager, and the spray device comprises a baffle arranged parallel to the surface of the slab, two rows of staggered rectangular openings are opened on the baffle, a cover frame is fixed on the baffle away from the slab, a telescopic part aligned with each rectangular opening is arranged on the cover frame, and the movable end of the telescopic part is connected to a nozzle arranged toward the slab; the board surface spraying and humidifying device disclosed in the present invention can control the amount of water sprayed by the corresponding nozzle according to the temperature of each area of ​​the slab surface, and there is no cross-area in the nozzle spraying, thereby achieving precise control of the slab spraying and humidifying amount, thereby making the stress in the slab evenly released and improving the quality of the board.

The invention relates to the technical field of tenon-and-mortise solid wood semi-finished furniture treatment, and discloses a tenon-and-mortise solid wood semi-finished furniture stabilizing treatment method which comprises the following steps: S1, according to climate data of a furniture target sales area, determining wood target moisture content and target environment temperature and humidity corresponding to the climate data; s2, after being cleaned and fixed, the semi-finished furniture obtained after mortise and tenon splicing is completed is placed in an environment-controllable wood maintenance room, and air flow in the wood maintenance room tends to be uniform; s3, acquiring the current environment temperature and humidity in the wood raising room; judging whether the current environment temperature is in a preset suitable adjustment temperature interval or not; if not, the temperature in the wood cultivation room is adjusted to be within the temperature range suitable for adjustment; the whole process is tightly combined, and while the texture of wood is well kept, the wood is fundamentally endowed with the inherent stability of resisting target environment changes and eradicating cracking deformation.

A wood substrate or member is included, having an increased density with respect to natural, untreated wood. The process includes drying the wood prior to application of heat and pressure, which are controlled to reduce or eliminate color change on a surface of the wood member where heat and pressure are applied.

The present invention discloses a device for processing log board to prevent deformation, comprising a processing box, a first conveyor belt and a second conveyor belt, automatic sealing doors are arranged on both sides of the processing box, an extrusion vibration component is arranged inside the processing box, a pretreatment component is arranged on the top of the first conveyor belt, a heating component is arranged between the processing box and the first conveyor belt, and the controller is electrically connected to a moisture content sensor. The present invention relates to the technical field of preventing log board deformation; the device for processing log board to prevent deformation and a processing method thereof continuously detect the moisture content of each part of the board through a moisture content sensor, and the controller accurately adjusts the power of the heating plate according to the detection result to realize zoned heating, which can avoid the situation that some parts of the board are not heated sufficiently or excessively, so that the internal fibers of the wood are more flexible under moderate heating, which is conducive to stress adjustment, thereby effectively preventing the board from being deformed due to stress problems.

The invention discloses a real wood veneer spraying, leveling and moisturizing device which comprises a reciprocating conveyor belt and a one-way linear conveyor belt which are sequentially connected, a plurality of veneer leveling devices are placed on the reciprocating conveyor belt, and spraying devices are arranged at the positions, corresponding to the veneer leveling devices, of the top of the discharging end of the reciprocating conveyor belt; a moisturizing device is arranged at the top of the one-way linear conveying belt in the conveying direction of the one-way linear conveying belt; according to the wood veneer flattening and humidifying device, efficient flattening, humidifying and moisturizing operation can be conducted on wood veneers, and deformation and cracking of the wood veneers in the subsequent hot pressing process are avoided.

The aforementioned invention relates to a method for producing a three-dimensionally deformed panel made of a wood fiber material, comprising the following steps: - providing a pre-fabricated, flat wood fiber material panel as a starting panel, - preheating the starting panel section by section, - wetting a preheated section of the starting panel with an atomized liquid mixture of water and a release agent, - placing a preheated section of the starting panel wetted with a liquid mixture of water and a release agent between two rollers (10, 11) of a forming station (4), wherein the rollers (10, 11) each provide a circumferentially (22) corrugated profile of the outer surface (23), so that the starting panel is section by section transformed into a corrugated panel (6), - wherein rollers (10, 11) are used,whose respective profiling has successive half-waves (16, 17, 18, 19) in the circumferential direction (22), which at least partially have a different extent in the circumferential direction (22).

The application discloses a processing method for long-acting protection of round bamboo. The surface of the round bamboo is cleaned, and the joints are broken. The pretreated round bamboo is subjected to wet heat treatment for 1-6 hours under the environmental conditions of 70-95% humidity and 70-95 DEG C temperature. The round bamboo after the wet heat treatment is dried at 60-90 DEG C. The dried round bamboo is subjected to heat modification for 1-6 hours in the environment of 100-160 DEG C. The inner and outer surfaces of the round bamboo are coated with wood wax oil or vegetable oil, and the coating is dried until the surface is solidified into a film. The method is suitable for processing of fresh round bamboo, effectively improves the surface quality, size stability and mildew-proof effect of the round bamboo, and widens the application region of the round bamboo as an engineering material.

The invention provides stable compositions comprising a biocide component (i) comprising at least one compound of formula (I), (I), with m being an integer from 1 to 6; and R1 being H; R2 and R3 being independently selected from H, a polar protic or polar aprotic substituent independently selected from a saccharide residue, a polyalcohol residue, a polyether residue, a polyamine residue, a polyimine residue, an amino acid residue or an amino acid derivative, a peptide residue, a protein residue or a protein derivative, an organic acid residue, including a carboxylate, a sulfonate, a phosphate, or a substituent selected from Formula (a), (a), and R4 being selected from Formula (b), (b), with n and n' being independently selected from an integer from 1 to 25; and at least one triglyceride of formula (II), (II), with R5, R6 and R7 being independently selected from C10-C25 alkyl and C10-C25 alkenyl. Furthermore, a method for preparing said composition is provided, as well as the use of said compounds.

The application discloses a manufacturing method of an environment-friendly precise controllable compression light-weight high-strength laminated composite board, and comprises the following steps: firstly, the moisture content of surface layer veneer and first layer veneer is adjusted to 10-15%, the moisture content of woven bamboo mat and the rest layer veneer is adjusted to 6-8%; then, adhesive is coated on the upper and lower surfaces of the woven bamboo mat and the first layer veneer of the core board, and the woven bamboo mat is respectively laid on the upper and lower surfaces of the first layer veneer of the core board to obtain a laminated composite core board; then, adhesive is coated on the upper and lower surfaces of the laminated composite core board, and the rest layer veneer of the core board is respectively laid on the upper and lower surfaces of the laminated composite core board, and the laminated composite core board is sequentially subjected to pre-compression forming and pre-heating treatment; after the treatment is completed, high-temperature hot-pressing treatment is carried out to obtain the compression light-weight high-strength laminated composite board. The composite board prepared by the method has balanced transverse and longitudinal bending strengths, high deformation resistance, a thick dense surface layer and good finishing effect after sanding treatment, and has good application potential in furniture manufacturing.

The invention belongs to the technical field of wood modification, and particularly relates to in-situ synthesized carbon quantum dot modified compressed wood and a preparation method thereof. The preparation method comprises the following steps: selecting a wood sample, and placing the wood sample in a urea aqueous solution for vacuum pressurization dipping treatment; then the pretreated wood is subjected to microwave treatment, and in-situ synthesis of carbon quantum dots in the wood is induced; and finally, the wood is subjected to hot-pressing densification treatment, and the in-situ synthesized carbon quantum dot modified compressed wood is obtained. Wherein the mass fraction of the urea aqueous solution is 5%-50%. The modification mode of in-situ synthesis of the carbon quantum dots in the wood is adopted, the process is simple, cost is low, and large-scale application and popularization are easy. The in-situ generated carbon quantum dots and wood components can construct a hydrogen bond and covalent bond synergistic dual-network cross-linked structure. According to the prepared modified wood, the strength, toughness, dimensional stability and corrosion resistance of wood are synergistically improved, and an effective way is provided for high-value utilization of fast growing wood.