419results about "Pressure wood treatment" patented technology

The present invention relates to furniture panels, and more particularly, to a method for preparing functional engineered wood. It includes the following steps: make veneer blanks by rotary cutting or splicing, and cut the veneer blanks into desired dimensions to obtain veneers A. Soak the veneers A in a ternary mixed solution of a biomass nanocellulose solubilizer, a fire retardant and an acid dye for toughening, fire retardation and dyeing to obtain veneers B. Add a formaldehyde decomposing powder into a modified MUF adhesive, mix them up, coat the veneers B with the mixture to obtain veneers C. Assemble and cold-press the veneers C to obtain flitches D, and saw the flitches D into desired patterns and dimensions to obtain finished products.

The invention provides phase-change energy storage heat-insulation solid wood. The wood comprises a solid wood component, wherein magnetic Fe3O4 nanoparticles are formed in a conduit and a cell cavity of the solid wood component through in-situ attached growth, and the conduit and the cell cavity are filled with composite phase-change energy storage materials of polyethylene glycol 600 and polyethylene glycol 800; and a protective coating is painted on the surface of the heat-insulation solid wood. The heat-insulation solid wood is capable of absorbing heat to withstand excessive rise of an indoor temperature during the day, releasing phase-change latent heat for thermal retention and cold dispelling during the night, and maintaining a human body within a comfort temperature range. The invention further provides a manufacturing method of the heat-insulation solid wood. The method comprises the steps of firstly processing the solid wood component according to the required dimension; carrying out degreasing and drying pretreatment on the solid wood component, forming the magnetic Fe3O4 nanoparticles in the solid wood component through in-situ attached growth and then impregnating and filling the composite phase-change energy storage material of the polyethylene glycol 600 and the polyethylene glycol 800; and finally carrying out sanding shaping and painting the protecting coating. According to the manufacturing method, the process is simple and the cost is low.

The invention relates to a manufacturing method for fluorescent transparent magnetic wood. The manufacturing method for the fluorescent transparent magnetic wood aims to solve the problems that existing wood is not transparent and does not have magnetism or the fluorescence property. The manufacturing method for the fluorescent transparent magnetic wood comprises the steps that firstly, lignin of wood is eliminated; secondly, fluorescent magnetic nanoparticles are prepared; and thirdly, the fluorescent transparent magnetic wood is manufactured and obtained. The method is used for manufacturing the fluorescent transparent magnetic wood.

The invention discloses a wicker anti-mold and insect-proof treatment method, comprising the following steps: (1) raw material treatment, (2) air-drying treatment, (3) bacterial liquid treatment, (4) water steaming treatment, (5) drying treatment, (6) Anti-mold and insect-proof treatment, (7) Secondary drying treatment. The mildew-proof and insect-proof properties of the treated wicker in the invention are well improved, no mold and insect-eaten phenomena will occur within 12 years under normal use conditions, and the wicker has good moisture-proof, crack-proof and wear-resistant properties.

The invention relates to a process for treating a lignocellulosic material, preferably wood, comprising the following steps: (1) soaking of the material with organic fluid in order to dissolve at least 40% and at most 85%, in weight %, of the lignin of the material; (2) washing with organic fluid so as to discharge the dissolved lignin; (3) filling with a filling compound; and (4) finishing, so as to obtain a composite formed of a three-dimensional network of transformed filling compound incorporated into a cellulose and lignin network. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.

The invention provides a processing technology for moso bamboo for a bamboo-woven basket. The processing technology comprises the following steps that the moso bamboo freshly cut is placed into a refrigeration house with the temperature ranging from 10 DEG C to 15 DEG C to be frozen; the frozen moso bamboo is taken out and subjected to high-temperature processing for 30-60 min, the processing temperature ranges from 120 DEG C to 150 DEG C, and then the moso bamboo is placed in a closed pressure processing tank to be subjected to high-pressure processing; and the root of the moso bamboo subjected to high-pressure processing is cut away, bamboo breaking is conducted through a bamboo breaking machine, a bamboo skin is formed and tailored according to the specification of a needed bamboo-woven product, then, the tailored bamboo skin is dried, and the water content of the bamboo skin is not larger than 4%. The operation of the processing technology is easy to achieve. The moso bamboo processed through the processing technology is used for weaving the bamboo-woven product, the mould proof, high-temperature resisting and severe cold resisting capability and the anti-yield strength of the bamboo-woven product can be greatly improved, and the connection strength of bamboo fiber is obviously improved.

A production method of compressed compact carbonized wood relates to wood modification methods and mainly solves the problem that existing wood modification methods cannot improve the mechanical strength and the waterproof dimensional stability of wood. The method comprises, I, wood softening pretreatment including immersing and heating wood in a pretreatment solution and then washing the wood to obtain softened wood, II, softened wood compression, and III, high-temperature wood carbonization. The production method of the compressed compact carbonized wood can solidify compressed deformation of wood, avoid resilience and reinforce cellulose framework structures to strengthen wood. Wood modified through the method obtains obvious enhancement in mechanical strength and dimensional stability. The production method of the compressed compact carbonized wood is applied to wood modification.

The invention discloses a wood compression-in-situ pressured heat treatment integrated method and compressed wood prepared through the method. The method comprises the first step of the drying stage,the second step of pavement, the third step of heating, the fourth step of double-stage pressure compression treatment, the fifth step of heat treatment, the sixth step of stress relief and the seventh step of unloading. By means of the wood compression-in-situ pressured heat treatment integrated method and the compressed wood prepared through the method, the integral compression quality of the wood can be greatly improved, compression rebound of the wood can be controlled, the treated wood flatness is improved, no chemical pollution exists in the treatment process, the production cost is low,operation is simple and convenient, and the beneficial effects of high efficiency, environment friendliness and the like are achieved. Integral compression and deformation perpetual fixing of wood are achieved. By means of the method, the mechanical performance and size stability of the wood can be improved, and meanwhile the defects that anti-bending strength and screw holding force of wood subjected to heat treatment are poor are overcome.

The invention relates to a modification treatment method for woods. The modification treatment method comprises the following steps: a. carrying out oil heat treatment; b. after vegetable oil is naturally cooled to a room temperature, releasing the vegetable oil in a heat treatment tank and taking out sheet materials; c. pre-pressing; and d. carrying out surface oil removing treatment. According to the modification treatment method for the woods, the rotting-resisting and anti-mold properties, the size stability, the machinability and the interface bonding performance of the woods can be remarkably improved under the precondition that the mechanical properties of the woods are kept.

The invention discloses a multi-deflection bending shaping device for furniture wood processing. The device is composed of a material inlet platform, a soaking tank, a fumigation box, a heat-preservation levelling platform, a bending shaping box and a material outlet platform, the material inlet platform is provided with a first conveyer belt, a second conveyer belt is obliquely arranged in the soaking tank, a third conveyor belt and a steam spray pipe are arranged in the fumigation box, and the heat-preservation levelling platform is composed of a base seat, lifting rods and a lifting platform; the interior of the bending shaping box is connected with each first hot pressing roller through one corresponding first hydraulic rod and is connected with each second hot pressing roller through one corresponding second hydraulic rod, driven gears of the second hot pressing rollers are connected with a driving gear chain of a driving shaft, and the bending shaping box communicates with a hot air fan; and a slide groove of a bottom plate in the material outlet platform is in clamp connection with a T-shaped supporting foot of a motor, and the motor is connected with a horizontal push rod. The device provided by the invention realizes a bending shaping method of soaking, steam fumigation, low-pressure levelling, repeated hot roll bending and repeated hot roll shaping, is suitable for wood with different deflection, and has high bending and shaping efficiency, and high accuracy, and the shaped wood is not easy to deform.

The invention discloses a method for improving the hardness of wicker products, which comprises the following steps: (1) wicker peeling, (2) softening treatment, (3) wicker weaving, and (4) hardness treatment. The matching of each step of the method of the present invention is scientific and reasonable, and the obtained wickerwork has good insect-proof and mildew-proof effects and high surface hardness. Compared with the prior art, the surface hardness can be increased by about 25%, and the service life under normal use conditions It can be extended by about 30%, and the service life under high humidity conditions can be extended by more than 50%. It has good stability in use, strong anti-deformation ability, good corrosion resistance, and high use value.

The invention belongs to the field of bamboo treatment and relates to an antiseptic and mildewproof treatment technology. The technology comprises the following steps that (1), the fresh bamboo is dried to be with the water content of 12-15%; (2), the dried bamboo is put into a vacuum pressure tank, the vacuum degree of the vacuum pressure tank is controlled to be over 0.08 MPa, and the treatment time ranges from 35 min to 50 min; (3), a protective agent is added to the vacuum pressure tank; (4), a vacuum pump is closed, a pressure pump is started, the pressure is made to be in the range of 1.2-1.8 MPa, and treatment is conducted for 50-70 min under the condition of keeping the pressure; and (5), the pressure is relieved, and the protective agent is drained. According to the antiseptic and mildewproof treatment technology for the bamboo, for the characteristic of the bamboo, the technological processes of drying, high-pressure, vacuum, pressurization and vacuum are adopted, in combination with the protective agent special for the bamboo, the protective agent can be effectively permeated into the bamboo from bamboo inner rings (inner of the bamboo) with the high nutrient content and the low density, the ideal protective agent saturation injection effect is achieved, the protective agent stays in the bamboo for a long time and is not easy to drain, and the long-term protective effect can be played.

A process for removing water and solutes from the lumens of green wood, while leaving the cell walls throughout the wood uniformly fully swollen, comprises subjecting the green wood to supercritical carbon dioxide.

The invention discloses a precious wood imitating dyeing method. The precious wood imitating dyeing method comprises the following technology steps that firstly, dye liquor is prepared, the dye liquor is prepared through three kinds of dyestuff including reactive red, reactive yellow and reactive blue according to the mass ratio of (2-3):(4-7):1, sodium chloride or sodium sulfate with the concentration of 5 g / L-40 g / L is added to serve as a dyeing accelerant, and sodium carbonate or ammonium chloride or propylene glycol with the concentration of 20 g / L-60 g / L is added to serve as a dye fixing agent; and secondly, impregnation dyeing is conducted, dyed wood is immersed in the dye liquor with the concentration of 0.5%-5% and the bath ratio of 1:(10-40) in a vacuum impregnation tank, dyeing is conducted in a negative pressure and positive pressure alternating manner, the dye liquor sufficiently seeps into the wood, and the surface, the inner portion and the outer portion of the dyed wood are uniform. The method has the beneficial effects that the wood treated through the provided precious wood imitating dyeing formula and the provided dyeing method is clear in texture, the total color difference between the wood color and the target wood color is smaller than or equal to 1.5 NBS, and permeability and color uniformity of the dyeing liquor are good.

The invention discloses a softening treatment method for bamboo and belongs to the technical field of wicker processing. The softening treatment method comprises the following steps of (1) bamboo pretreatment, (2) high temperature and high pressure treatment, (3) ultrasonic cleaning treatment, (4) softening treatment fluid preparation, (5) soaking treatment and (6) dry weaving treatment. The method mainly improves softness during bamboo weaving, increases the weaving yield, also can effectively realize recovery and promotion of bamboo rigidity, improves the usage quality of a weaved product and prolongs the service life of the weaved product. Besides, bamboo after being treated in this way can be subjected to high temperature softening treatment and then deserve secondary plastic weaving, the problem that existing wickerwork cannot be effectively reused is solved, and the method has good popularization and use value.

The invention discloses a sympodial bamboo integration profile manufacturing method. The method is characterized by including the following steps: S1, soaking bamboo filaments of sympodial bamboo which are subjected to green planing and yellow removing in water for high-temperature stewing at temperature of 100-120 DEG C for at leat four hours, wherein the water contains, by mass, 5-10% of hydrogen peroxide and 0.5-1% of sodium hydroxide; S2, disposing wet bamboo filaments in a carbonization furnace for carbonizing at temperature of 130-15o DEG C and at pressure of 3-4 MPa for 4-6 hours; S3, drying for the first time, dipping in glue, and drying for the second time after glue dipping; S4, performing high-pressure forming at pressure of being not less than 1.2 t / cm2; S5, performing thermosetting for more than 10 hours at temperature of 80-150 DEG C under the condition that the pressure of being not less than 1.2 t / cm2 is maintained. By the sympodial bamboo integration profile manufacturing method, sympodial bamboo integration profiles meeting structural profile requirements can be manufactured.

Process for the treatment of cork or a cork-based material particularly with a view towards extracting contaminating organic compounds, in which said cork or said cork-based material is put into contact with a dense fluid under pressure at a temperature of from 10 to 120° C. and at a pressure of from 10 to 600 bars.Manufacturing installation for parts made of cork or a cork-based material, such as bottle corks, comprising an installation for treatment or extraction by putting the said cork or the said material into contact with a dense fluid under pressure.

The invention provides a method for preparing bamboo beam columns. The method includes the steps that a piece of bamboo wood is selected; selected bamboo is sawed into a bamboo tube with the length being 3-8m, and then splitting is performed as required so that long-bar-shaped bamboo chips can be obtained; the long-bar-shaped bamboo chips are subjected to bamboo green and bamboo inner skin removing treatment; then the bamboo chips subjected to bamboo green and bamboo inner skin removing treatment are placed into a solution containing 0.2%-1% of hydrogen peroxide for cooking, and the bamboo chips are drained off after being cooked and placed into a drying shed to be dried; afterwards, the bamboo chips are subjected to shaping, glue dipping, blank formation and glue replenishing so that preliminarily-formed hollow bamboo columns can be obtained; the preliminarily-formed hollow bamboo columns are mold-filled, heated and cured, and the heated and cured bamboo columns are placed in a normal pressure and temperature environment for nourishing, so that internal stress is removed; then a center winding rod is drawn out of the middle part of each bamboo column; and finally, a mold is opened to take out each bamboo column, and the bamboo columns taken out refer to complete and hollow bamboo beam columns. The bamboo beam columns prepared through the method enable the environmental protection performance of the bamboo wood to be reflected maximally in construction, and meanwhile the basic requirements of large-sized housing construction beam columns can be met.

The invention provides a treatment technology for raw material rattan of rattan plaited articles. The treatment technology includes the following steps that the rattan is subjected to deburring and airing, then modified disinfectant is used for soaking the rattan, solarization is conducted for 2-3 days after soaking is over, then the rattan is put into an airtight container filled with nitrogen to be subjected to pressure maintaining treatment for one hour, and then the rattan is soaked through a chloramphenicol solution and then cleaned; and the rattan is soaked for 24 hours through biogas slurry generated by anaerobic fermentation, then cleaning is conducted, the rattan is fumigated for 30 minutes under steam, saline water is sprayed on the rattan after fumigation is over, and then the rattan is wrapped and covered with soybean meal and then put into a constant-temperature box to be subjected to heat preservation for 30 minutes. According to the treatment technology for the raw material rattan of the rattan plaited articles, no chemical remains on the rattan treated through the treatment technology, the anticorrosive capability and aging-resisting capability of the rattan are improved obviously, moths cannot be generated on the rattan when the rattan is used for 15 years, in addition, traditional Chinese medicine components permeating in the treated rattan have certain benefits for the human body, the water immersion resistance and the oil immersion resistance of the rattan are very high, the rattan cannot rot when soaked in water for 10 years, the color is not changed in the least, and the ultraviolet-resisting capability is good.

The invention provides an old rattan treatment process. The old rattan treatment process comprises the following steps of soaking old rattan for four hours with a modified toughening solution, and conducting ventilation for airing; then putting the rattan in a closed container full of nitrogen, conducting pressure-maintaining treatment for one hour; spraying Shaoxing rice wine to the rattan, then putting the old rattan in the burning sun to insolate the old rattan for four days, and thoroughly cleaning the old rattan with deionized water; soaking the old rattan which is thoroughly cleaned for 24 hours with biogas slurry generated through anaerobic fermentation, thoroughly cleaning the rattan with deionized water, and then drying the old rattan with a draying machine, so that the water content of the old rattan is not greater than 2%; then, conducting fumigation for one hour under steam, and after fumigation is ended, spraying glycerinum to the old rattan; then wrapping and covering the old rattan with baijiu vinasse, and putting the old rattan in a constant temperature box for heat preservation; and putting the old rattan in the drying machine for drying. The treatment process is used for treating the old rattan and can restore toughness of the rattan, kill worm eggs in the rattan and remove worm holes in the rattan, so that wood fibers of the rattan are connected more tightly; and distortion-resistant strength and tensile strength are greatly enhanced.

The invention relates to a manufacturing method of high-strength long bamboo fiber bundles. The manufacturing method comprises the following steps of (1) pretreating bamboo wood; (2) conducting high-temperature saturated vapor treatment on the bamboo wood; and (3) rolling the bamboo wood and dispersing the bamboo wood into bamboo fiber bundles. The manufacturing method has the advantages that fresh round bamboo tubes or bamboo chips soaking in the water are adopted and are subjected to fast heat treatment with high-temperature saturated vapor for 10-60 min; the bamboo fiber bundles are separated easily through multi-roll longitudinal rolling or single-roll transverse rolling or hammering to obtain the high-strength long bamboo fiber bundles; as the bamboo chips contain water, parenchyma tissues between the bamboo fiber tube bundles are destructured under the actions of pyrohydrolysis and high-temperature pyrolysis; the bamboo fiber tube bundles are separated easily. The manufacturing method is adopted for producing the high-strength long bamboo fiber bundles and has the advantages that the cost is low; no chemical reagents are added; the treatment method is simple; the time is short; the strength of fibers is hardly reduced; and the high-strength long bamboo fiber bundles can be used as fuel or organic fertilizer for fertilizing the soil after being discarded.

The invention discloses a manufacturing and producing method for mahogany classical furniture. Mahogany logs are selected and subjected to high-temperature peel removal and drying, and the dried mahogany is aligned, classified and bundled; and then the mahogany is subjected to cold-pressing moth proofing, design classification, bending and polishing and assembling and forming, and the mahogany classical furniture is obtained. By the adoption of the manufacturing and producing method for the mahogany classical furniture, on the premise of guaranteeing moisture removal of wood, a great number of compositions, beneficial to the health of the human body, in the mahogany are retained to the maximum extent, so that the health caring function is truly played when the mahogany furniture is used in daily life. According to the manufacturing and producing method for the mahogany classical furniture, a high-temperature fumigation method is adopted, moths hidden in the depth of the mahogany are thoroughly killed, the mahogany is highly selective, subjected to operation of a series of processes of peel removal, cooking, drying, modeling and the like and made into home furnishing, official, leisure and outdoor handiworks and art works, time and labor are saved, the manufacturing and producing method is suitable for industrial production, and the obtained products have the practical value and the ornamental value.

A process for treatment of wood susceptible to damage and having a length that is over the critical length with a fluid under high pressure is disclosed. The process is conducted in a way so that the fluid is not allowed to enter into the liquid form inside the wood. In one embodiment the process is performed in a way so the temperature during the pressurizing is not allowed to exceed the plastification temperature of the wood. In this embodiment the rate of damages of the wood is even further reduced.

The invention discloses a bending method of bamboos in a high-temperature and high-pressure steam tank. The bending method comprises the following steps: after inner sections of round bamboo poles needing to be bent are got through for filling of clean sand, the two ends of the round bamboo poles are sealed, and cross sections of bamboo walls are not sealed; the treated round bamboo poles are placed on a special bending mold frame with rollers for fixation, and are pushed into a steam tank with a rail through the rail for closing; high-temperature and high-pressure steam is opened for softening the bamboo poles, and at the same time, the bamboo poles are bent by using weight round iron bars on the bending mold frame; spraying evaporation is stopped; the steam tank is opened to take out themold frame with the bent bamboo poles; the bent bamboo poles are locked, fixed and shaped; and aftertreatment is performed on the bent bamboo poles. Semi-celluloses with high moisture absorptivity inthe bamboos and amorphous region parts in the celluloses are degraded, so that the moisture absorptivity of the bamboos is reduced, the size stability of the bamboos is improved, and the cracking deformation possibility of the bamboos is reduced.

The invention provides a processing technology of a Chinese fir door and relates to the technical field of wood door processing. The processing technology comprises the steps that a Chinese fir raw wood is peeled, dried and cut into a Chinese fir board; vacuumizing is conducted; the Chinese fir board is soaked through resin impregnation liquid, dried and subjected to vapor spraying again; an enhancer is pressed into the Chinese fir door board; and the Chinese fir board is dried again and processed into a Chinese fir door board blank to be polished, carved and painted, so that the Chinese fir door board is obtained. The resin impregnation liquid permeates into Chinese fir, and the strength of the Chinese fir can be improved after drying, so that the Chinese fir is not liable to be deformed after bearing external force; and the enhancer is pressed into the Chinese fir subsequently, thus the surface strength of the Chinese fir is improved, a scratch is not liable to be made on the Chinese fir, and the moisture-proof performance of the Chinese fir is increased, and prolonging of the service life of the Chinese fir door is facilitated.

The invention provides a board pressing device and belongs to the technical field of wood processing. The board pressing device comprises a pull rod, a supporting roller, a cam, a T-shaped support and a pressing plate. The pull rod is arranged on a clamp supporting seat and can slide up and down. The supporting roller is rotatably arranged at the lower end of the pull rod. The cam is eccentrically arranged on a supporting shaft. The supporting roller is attached to the cam. A second belt pulley is coaxially arranged on the supporting shaft. A first belt pulley is connected with the second belt pulley through a driving belt. The first belt pulley is coaxially connected with a driving motor. A connecting support lug is arranged at the upper end of the pull rod. The T-shaped support is hinged to the connecting support lug through a pin shaft. A first blocking stage is arranged at the lower end of the T-shaped support. A second blocking stage is arranged at the left end of the T-shaped support. A protruding part is arranged at the upper-left end of the clamp supporting seat and located between the first blocking stage and the second blocking stage. The pressing plate is arranged at the right end of the T-shaped support. According to the board pressing device, a board can be fast clamped and released, the pressing effect is good, the structure is reasonable, and the cost is low.

The invention discloses a manufacturing technology of high-strength laminated wood. The manufacturing technology comprises the following steps that S1, finger joint treatment is conducted on wood raw materials; step S2, carrying out delignification and hemicelluloses treatment on the wood subjected to finger joint treatment through a chemical reagent; s3, the wood treated in the step S2 is washed, and the wood is dried after being washed; s4, the wood treated in the step S3 is placed in impregnation liquid containing an adhesive, and curing treatment is conducted on the wood; s5, the wood subjected to curing treatment is assembled according to the type of the laminated wood, and an assembled test piece is obtained; step S6, carrying out pressurization and densification treatment on the assembly test piece; and S7, carrying out deep processing on the assembly test piece subjected to pressurization and densification treatment, and carrying out planing, deep processing, surface treatment and packaging to obtain a final product. By means of the method, the density of the interior of the laminated wood can be improved, and the high-strength laminated wood is obtained.

The invention relates to a process for treating a lignocellulosic material, preferably wood, comprising the following steps: (1) soaking of the material with organic fluid in order to dissolve at least 40% and at most 85%, in weight %, of the lignin of the material; (2) washing with organic fluid so as to discharge the dissolved lignin; (3) filling with a filling compound; and (4) finishing, so as to obtain a composite formed of a three-dimensional network of transformed filling compound incorporated into a cellulose and lignin network. The invention also relates to a composite structure able to be obtained in this way, and to any part comprising at least one such structure.