24results about "Wood damping" patented technology

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 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 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 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 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.

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.

The utility model discloses bamboo and wood furniture raw material cutting equipment which comprises a conveying table assembly and a front supporting frame assembly, and the top of the front supporting frame assembly is fixedly connected with a cutting assembly. The conveying table assembly comprises a conveying motor, a table plate and a water tank, an output shaft of the conveying motor is fixedly connected with a conveying roller through a coupler, and a drainage pump is arranged at the drainage end of the water tank; according to the bamboo and wood furniture raw material cutting equipment, through the arrangement of the conveying table assembly, bamboo materials to be cut are placed on the table plate, a conveying motor is started and controlled to drive a conveying roller to rotate, the bamboo materials can be driven to be conveyed to one side of the cutting assembly, and cutting operation is facilitated; when the bamboo materials are conveyed, a draining pump on a water tank is started, water is evenly sprayed to the outer walls of the bamboo materials through a spraying pipe, a short pipe and a spraying head, the dryness of the bamboo materials is reduced, the bamboo materials absorb water in the process of being conveyed to be cut, and therefore the situation that the bamboo materials burst in the cutting process is reduced.

The invention discloses a bamboo powder manufacturing process. The process aims at solving the problems that in existing static soaking pretreatment, the efficiency is low, and the quality of subsequent finished products is unstable due to the fact that bamboo chips absorb water unevenly. The core of the method is that in the step S1, bamboo wood pretreatment is conducted, specifically, a hopper containing bamboo chips moves in a soaking tank in the direction B, meanwhile, soaking liquid flows in the tank in the opposite direction A, and continuous countercurrent soaking is formed; according to the method, efficient and uniform softening of the bamboo chips is achieved. And the pretreated bamboo chips are subjected to drying, coarse grinding, superfine grinding and grading treatment, and the superfine bamboo powder is obtained. Through the key technology of countercurrent soaking, the softening uniformity and efficiency of the bamboo chips are improved, and raw materials with uniform properties are fundamentally provided for subsequent procedures, so that comprehensive energy consumption is reduced, and it is guaranteed that the 1200-mesh bamboo powder product has excellent particle size distribution uniformity and high whiteness.

This invention provides a multi-layered material and method for the corrective restoration of lacquered wooden artifacts, relating to the field of wood restoration technology. By using a multi-layered material, the damaged parts of the artifact's wood are softened, and then corrective and fixed repair is achieved. This eliminates the need to disassemble the damaged wooden components for separate soaking, allowing the artifact to remain saturated with water for an extended period, thus ensuring its integrity. Frequent spraying of water to replenish the wooden components is unnecessary, saving manpower and increasing efficiency. The addition of propylene glycol enhances the moisturizing ability. Propylene glycol has good viscosity and hygroscopicity, is non-toxic, does not react with wood, and leaves no residue after evaporation, making it highly safe for use on artifacts. It can capture moisture from the air, greatly enhancing the moisturizing effect. The invention successfully combines a water-retaining agent and propylene glycol, allowing for both separate and combined use. The moisturizing time can be adjusted according to the actual moisturizing needs of the artifact, without affecting the inherent color of the wooden artifact.

The invention relates to a branch crusher control method and system, an intelligent terminal and a storage medium, and relates to the technical field of branch crushs.The method comprises the steps that a branch crusher is started, and a feeding channel for branches to enter is opened; detecting the stacking height of the chippings in the chipping box in real time; when the stacking height of the chippings reaches the preset stacking height, a discharging opening of the feeding channel is closed; a compression plate in the chipping box is controlled to execute a preset compression action on the chippings, and a chipping compression layer is obtained; the three steps are repeatedly executed until the accumulated height of the chip compression layer reaches the preset compression height, and a chip compression block is obtained; suspending the branch crusher and sending a cleaning request; and a confirmation signal of the cleaning request is received, a scrap outlet of the scrap box is controlled to be opened, and a pushing plate in the scrap box is controlled to push the scrap compression blocks out of the scrap outlet. The wood chip recycling device has the effect of improving the wood chip recycling efficiency.

The embodiment of the present disclosure provides a boxwood carving material anti-cracking treatment and storage integrated device, which comprises: an anti-cracking treatment cavity for accommodating boxwood carving materials and providing a uniform humidity treatment environment, wherein the anti-cracking treatment cavity has an inner wall with a multilayer composite structure, a plurality of uniformly distributed air holes are arranged on the side of the anti-cracking treatment cavity as humidity inlets, and a moisture absorption coating is arranged on the inner surface of the inner wall; a humidity adjusting module is arranged on one side of the anti-cracking treatment cavity and is used for generating or absorbing humidity to adjust the humidity in the anti-cracking treatment cavity and is connected with the anti-cracking treatment cavity through a pipeline; and a storage tray is arranged in the anti-cracking treatment cavity, and the surface of the storage tray is composed of a breathable hole grid structure so that the boxwood is in full contact with the surrounding humidity air. Through the scheme of the embodiment of the present disclosure, more uniform material humidity adjustment can be realized.

Disclosed is a fastening method using densified wood elements or pieces, which uses the swelling or set recovery of densified wood, commonly seen as a problem or disadvantage, as a solution for fitting pieces, for example, in assembled products or mechanical assemblies, which allows pieces to be securely fitted and joined without using additional fastening elements such as bolts, screws, nails, adhesives or other metal or plastic fastening means, etc., thus also dispensing with the use of tools to fasten assemblies or joints. The fastening method enables a fit that joins parts or components securely, maintaining the mechanical strength obtained by the densification of the densified wood elements or pieces used for fastening. The proposed fastening method uses sustainable materials, such as radiata pine, which is widely available in Chile and has high densification potential.

The invention concerns a stamp for impressing graphic symbols and alphanumeric characters on logs of wood, which comprises a housing (1) on which a die is installed. It is characterised in that the die consists of marking components (2) mounted in the housing (1) so that they can slide along their axes, and each of the components is coupled to a mechanism that locks it in its extended or retracted position in the housing (1), in such a way that the components together form an extended marking combination of the die.

The present application relates to a kind of humidifying device, specifically to a kind of humidifying device at feed inlet of shaving machine.It includes water inlet main pipeline, water inlet main pipeline is connected with water distribution branch pipeline, water distribution branch pipeline is connected with flexible connecting pipe, flexible connecting pipe is connected with water spraying rod, water spraying rod is equipped with rotating telescopic structure for installing water spraying rod, water spraying rod is also equipped with spray head.The present application sets up humidifying device at the position of feed inlet of shaving machine, this installation position can make water spraying more uniform;Water spraying rod is selected at water spraying place, and spray head is set on water spraying rod, which can further improve the uniformity of water spraying, and effectively solve the technical problems of low shaving efficiency and easy dust raising caused by low moisture content of raw materials.

The invention provides a multilayer material for shape righting and repairing of lacquer and wood cultural relics and a using method, and relates to the technical field of woodware repairing. The multilayer material is used, the damaged part of cultural relic wood is softened through the multilayer material, then shape righting and fixing repairing are conducted, components of the damaged part of the cultural relic wood do not need to be detached for independent soaking, and the cost is low; the cultural relics can be in a waterlogged state for a long time, and the integrity of the cultural relics is ensured The wood component does not need to be sprayed and replenished with water frequently, manpower is saved, and efficiency is high; propylene glycol is added to enhance the moisturizing capacity, and propylene glycol is good in viscosity and hygroscopicity, non-toxic, free of reaction with wood, free of residues after volatilization, high in safety when applied to cultural relics, capable of capturing moisture in air and capable of greatly enhancing the moisturizing effect; the water-retaining agent and the propylene glycol are successfully combined and can be used in a dispersed or combined mode, the moisture-retaining time can be adjusted and controlled according to the actual moisture-retaining requirement of the cultural relics, and the essential color of the wood cultural relics cannot be affected.

The invention relates to the technical field of edible mushroom production, in particular to a submerged tunnel type large pre-wetting production line suitable for edible mushroom raw material treatment and a pre-wetting method. The problems that in the prior art, prewetting of dry wheat straw for agaricus bisporus production is mostly completed manually, the labor intensity is high, the working efficiency is low, and the dry wheat straw prewetting effect is poor are solved. The device comprises a grass soaking pool and a discharging unit, a pre-wetting tunnel is arranged in the grass soaking pool, and a grass pressing and pushing steel plate, a pre-wetting and pushing steel plate and a lifting and pushing steel plate are sequentially arranged in the pre-wetting tunnel; a conveying belt, a water adding pipe, a high-pressure fan and a gas distributing tank are arranged at the feeding end of the grass soaking pool, and a discharging unit is arranged at the discharging end of the grass soaking pool; the conveying belt conveys the dry wheat straw into the straw soaking pool, the high-pressure fan is communicated with the air distribution tank, and the air distribution tank is used for spraying air to the bottom of the pre-wetting tunnel. The method is used for pre-wetting the agaricus bisporus compost dry wheat straw.

The application discloses a kind of continuous manufacturing method of environment-friendly dense reinforced bamboo-wood laminated composite sheet, comprising the following steps: first, wood veneer raw materials are lengthened and wetted, and the moisture content of veneer is adjusted to 10-15%, then the adhesive is coated on the upper and lower surfaces of bamboo mat roll, the veneer that has been wetted is respectively laid on the upper and lower surfaces of the glued bamboo mat roll, and finally, pre-compression forming, pre-heating treatment and continuous hot pressing treatment are sequentially carried out to obtain dense reinforced bamboo-wood laminated composite sheet. The environment-friendly ultra-thin dense reinforced bamboo-wood laminated composite sheet prepared by the application has good transverse and longitudinal bending strength, deformation resistance and finishing effect, and can be widely used in the manufacture of furniture products, and can also be used as an intermediate body for manufacturing high-performance composite materials, and has good market prospect and industrialization foundation.

The present invention relates to a novel method of treating wood, in which method wood material is kept in hot liquid in a temperature from 100 to 260 °C, the treated wood material is dried and liquid treatment substance is impregnated into the wood material in a pressure from 5 to 20 bar, The liquid treatment substance can be e.g. alkaline silicate or copper-containing treatment substance, especially soluble glass.

The utility model 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 connected in sequence, a plurality of veneer leveling devices are placed on the reciprocating conveyor belt, and a spraying device is arranged at the top of the discharging end of the reciprocating conveyor belt and corresponds to the veneer leveling devices. 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 invention relates to the technical field of home furnishing boards, in particular to a high-stability fixed-structure solid wood finger joint paint-free board suitable for home furnishing scenes, which sequentially comprises a solid wood finger joint base material layer, a science and technology composite function layer and a melamine impregnated paper surface layer from inside to outside, the technical composite functional layer is composed of modified epoxy resin, plant fiber powder and nano titanium dioxide / zinc oxide, roller coating is conducted through a water-based dispersion system, drying and curing are conducted, and the composite functional layer is prepared from the modified epoxy resin, the plant fiber powder and the nano titanium dioxide / zinc oxide. The functions of heat insulation, oxidation resistance and stress buffering are achieved. The surface layer is made of melamine impregnated paper and is subjected to hot-pressing composite molding, the formaldehyde release amount of the paint-free plate is smaller than or equal to 0.025 mg / m, VOC release is avoided, the paint-free plate can resist contact with hot objects with the temperature of 80 DEG C or below, no ironing marks exist, and the paint-free plate is suitable for high-end home customization scenes.

The application discloses a kind of preparation methods of environment-friendly low-carbon recombination bamboo, comprising the following steps: S1, select bamboo and bamboo silk fiber, remove the impurities on the surface of the bamboo, the bamboo is completely soaked in water until bamboo is in saturated state, the bamboo is subjected to multiple freeze-thaw cycle treatment, and the pretreated bamboo strip with crack is obtained;S2, the pretreated bamboo strip obtained in step S1 is dried, and the crack on the surface of the pretreated bamboo strip is expanded, and the prepared bamboo strip with more obvious crack is obtained;S3, select low-pressure air injection device, clean along the crack direction of the surface of the prepared bamboo strip, and obtain clean and dry preparable bamboo strip;To enhance the electrostatic adsorption capacity of bamboo silk fiber, ensure that the adhesive and fiber filled in the crack can be closely combined, improve the stability of bamboo, reduce the deformation, cracking and other problems caused by environmental changes.