952results about "Thermal wood treatment" patented technology

The invention discloses enhanced high-temperature heat treated wood and a manufacturing method thereof. The manufacturing method comprises the following steps that 1, high-temperature heat treatment is performed, wherein man-made forest wood serves as raw materials, and high-temperature heat treatment is performed on the man-made forest wood to obtain heat treated wood; 2, impregnation enhancing treatment is performed, wherein the heat treated wood obtained by the step 1 is impregnated in resin adhesives to obtain impregnated wood; 3, solidification forming treatment is performed, wherein solidification forming treatment is performed on the impregnated wood obtained by the step 2 to obtain the enhanced high-temperature heat treated wood. According to the manufacturing method, not only can the mechanical properties of the wood be improved, but also the size stability of the wood can be improved, green and environmental protection are achieved, and the prepared enhanced high-temperature heat treated wood takes the man-made forest wood as the raw materials and is high in mechanical strength and good in size stability.

The present application relates to a method for treating wood and wood-based materials for enhancing dimensional stability and surface properties and also for preventing cracking and extending durability. More specifically the invention for the treatment of wood and wood-based materials is directed to a method wherein the wood or wood-based material is subjected to a thermal treatment and the wood or wood-based material is at least partly impregnated with a melamine-containing resin. Subsequently the wood or wood-based material thus impregnated is cured with hot steam at not more than 125° C. preferably up to a maximum of 120° C. In a further aspect the present application includes the thermally treated wood or wood-based material, impregnated with melamine resin and cured, that is obtainable from the method of the invention. The present invention lastly provides for the use of melamine-containing resin for impregnating wood and wood-based materials which are or have been thermally modified, for the purpose of increasing the hardness and reducing the dimensional change through thermal modification. The material produced in accordance with the invention can be used as a substitute for teak.

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.

The invention discloses a color smoking treatment technology for a wood modification face layer. The color smoking treatment technology comprises the specific steps that firstly, to-be-treated wood is stacked and is blown through hot air; secondly, a layer of alcohol is brushed on the surface of the wood, cleaning is conducted through a sodium carbonate solution, then thorough scrubbing is conducted through water, and the wood modification face layer is obtained; thirdly, the overall wood is immersed in a phosphoric acid solution and taken out to be aired dry; fourthly, the wood is subjected to smoking, and the wood is subjected to further baking smoking through fuel materials; fifthly, the wood is placed in a heat treatment box to be tidily placed, rapid temperature rising is conducted, vacuum pumping is carried out, then slow temperature rising is conducted, and drying is conducted till absolute dry is achieved; sixthly, the surface of the wood subjected to heat treatment is wiped thoroughly through water; seventhly, the surface of the modification face layer is coated with a wood modification agent; and eighthly, the surface of the wood modification agent is coated with a layer of protective paint again. According to the color smoking treatment technology, physical treatment and oil paint treatment are combined, the permanency of the wood color is guaranteed, the wood waterproofness is guaranteed as well, and the wood is free of toxicity, environment-friendly, safe and sanitary.

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 relates to a mouldproof and mothproof treatment method for wood. The mouldproof and mothproof treatment method comprises the following steps: (1) processing wood at 85-90 DE C for 3 hours under the condition that the relative humidity is 48%-50%; (2) fumigating the wood with a 35% acetate solution at 1-1.5MPa and 105 DEG C for 30-45 minutes; (3) preparing a treating fluid; (4) soaking the wood treated in the step (2) with the treating fluid at 35 DEG C for 2 hours; (5) treating the wood surface treated in the step (4) with quick lime; and (6) treating the wood processed in the step (5) at 78 DEG C for 3 hours under the condition that the relative humidity is 25%-38%. The mouldproof and mothproof treatment method for the wood provided by the invention is simple; heavy metal is not used in the treatment process; no components which pollute a human body or the environment are generated after treatment; pollution is avoided; meanwhile, the treatment time is shortened to a few hours; and the treatment efficiency is greatly improved.

The invention discloses a board softening and mould proofing method. Softening and mould proofing are carried out at the same time, the treatment period is short, the method is simple, the working efficiency is improved by 15.3%, batch treatment can be carried out, softening and mould proofing are carried out through three steps, the effect is durable, traces are not left, and the cost is saved by 14.2%. A board is soaked with fermentation liquor, generated micromolecule matter can change the organization structure, fibers are initially softened, restraining on growth of infectious microbes is achieved, and deep pigments are dissolved; the board is soaked with a Chinese drug solution, rapid permeability is achieved, outside-to-inside even antibiosis is achieved, the using amount is small, antibacterial treatment can be carried out after diluting with water, safety and high efficiency are achieved, the cost is low, and the effect is durable; the board is subject to ultrasonic soaking with a sodium bicarbonate solution, antibiosis and disinfection are carried out, blots are removed, mould proofing and moth proofing are carried out, and the fibers are softened; and the board is dried in a low-temperature and low-humidity room, so that the pliability of the board is kept, preparation is facilitated, the fracture rate is reduced by 6%, the color and luster of the board can be kept natural, even and new, and color and luster treatment in the later period is facilitated.

The invention discloses a production and treatment process of solid wood furniture. The process comprises cutting, mildewproof treatment, wax boiling, finish polishing, painting assembly and aftertreatment; the cutting is to cut furniture logs into multiple assembly blocks according to the shape and the structure of the furniture; the mildewproof treatment is to treat assembly blanks by a mildewproof process and to dry to reach the water content of lower than 10%; the pressure planing and tenoning step is to use a pressure planing machine for polishing the dried blanks to produce mortise-tenon joint structures; the blanks are polished to become concentrates; after a primer is sprayed on the surfaces, the concentrates are cooled for drying; and the concentrates are assembled as a product. The process is reasonable; and the produced solid wood furniture is excellent in product quality, is not deformed by cracking, reinforces the mildewproof capacity, and is stable in performance and long in service life.

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.

The invention provides a preparation method of a functional wood material with a photocatalytic degradation function. The preparation method solves the problems that a wood material is easily polluted, color change under ultraviolet light is large, and the catalyzing efficiency of photocatalytic degradation of organic dyestuff through a single catalyst is low. The preparation method comprises thesteps that first, surface activation is conducted on the wood material through a sodium hydroxide solution; g-C3N4 after being subjected to protonated treatment is loaded on the surface of the wood material through a vacuum impregnation method; and taking ammonium fluorotitanate and urea as raw materials, TiO2 is grown on the surface of the wood material which is loaded with the g-C3N4, and the functional wood material with the photocatalytic activity is obtained through the steps of heat preservation, cleaning and the like. The degradation rate of rhodamine B and a methylene blue solution with the mass concentration being 2 mg/L and under ultraviolet illumination within four hours can reach to 95% or above through the functional wood material, change in color difference of the surface ofthe wood material after being subjected to ultraviolet light aging can be effectively reduced, color stability of the surface of the wood material is greatly improved, and the preparation technology has the advantages that the technology is simple, operation is easy, the cost is low, and the environment-friendly effect is achieved.

The invention discloses a method for pre-weaving bamboo weaving raw materials, which comprises the following steps: (1) raw material selection treatment, (2) high-temperature cooking treatment, (3) soaking treatment, (4) modification treatment, (5) dry weaving treatment . The invention carries out multi-process special treatment operations before bamboo weaving, which effectively improves the weaving characteristics of bamboo, enhances the softening performance, ensures the yield of weaving products, and at the same time enhances the overall strength characteristics of the weaving products and improves the quality of use , prolong the service life, and have good promotion and application value.

The invention discloses a preparation method for carbonized wood with a super waterproof sterilization self-cleaning function and relates to a wood modification method. The preparation method for the carbonized wood with the super waterproof sterilization self-cleaning function aims at solving the problems that existing carbonized wood does not have the waterproof and anti-corrosion functions. The method includes the steps that firstly, nanoparticle impregnation for wood treatment is performed, wherein the wood is placed into a nanoparticle/ethyl alcohol-water mixed solution subjected to supersonic treatment and is placed in a pressurizing device for impregnation, pressure is unloaded and returns to a normal pressure, then the wood is taken out, the surface of the wood is wiped clean, and the wood is placed in room temperature for standby use; secondly, hydrophobic treatment is performed, wherein the wood is placed in a fluorine-containing ethyl alcohol solution, a sealing reaction is performed, the wood is taken out, liquid on the surface of the wood is wiped thoroughly, and then the hydrophobic treatment is completed; and thirdly, carbonizing treatment is performed, and then the carbonized wood with a super hydrophobic sterilization self-cleaning function is obtained. The method is easy to operate, environment-friendly, low in cost and capable of integrating the super waterproof function and the sterilization function. The preparation method is used for modifying wood.

The invention relates to a method for preparing modified wood by compounding heat treatment based on alkali lignin. The method comprises the following steps: (1) soaking the wood treated in vacuum ina 1,4-dioxane solution with alkali lignin, adjusting the pressure to 0.2-0.8MPa and retaining the pressure for 50-90 minutes; and (2) taking the wood soaked in the step (1) out, drying the wood, putting the wood under the condition at the temperature of 120-200 DEG C, and carrying out heat treatment for 1.5-4 hours to obtain the modified wood. The method is used as a non-toxic and long-acting woodmodification manner with low cost and simple process; the modified wood with high water resistance and high size stability is prepared by compounding a heat treatment method; the defects of high possibility of cracking and high possibility of deformation of the fast-growing wood can be effectively overcome; the bottleneck problem of utilization of the fast-growing wood at present can be solved.

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.

The invention discloses a wood dipping heat treatment pressurization device, which is mainly composed of a pressurized tank, a pressurized tank door, a vacuum pump, a liquid storage box, a pressurization pump and a control cabinet. The pressurized tank and the pressurized tank door cooperate to form a horizontal sealed pressurized container, heat exchange coil pipes and a sliding guide rail are installed in the pressurized tank, the top of the pressurized tank is provided with a liquid inlet and a liquid inlet valve, the liquid inlet and the liquid inlet valve are connected to the liquid storage box through a liquid inlet pipe, the pressurization pump is disposed on the liquid inlet pipe between the liquid storage box and the liquid inlet valve, the pipeline between the pressurization pump and the liquid storage box is provided with a filter, a by-pass pipe bypasses the pressurization pump, and a check valve is arranged on the by-pass pipe. The top of the pressurized tank is also equipped with a vacuum valve, a vacuum control instrument, a temperature sensor and a pressure detection instrument, and the vacuum valve is connected to the vacuum pump through a pipeline. The wood dipping heat treatment pressurization device provided by the invention has the advantages of energy saving, convenient use, easy control and the like, can be well suitable for modification treatment of wood flame retardance, corrosion protection, enhancement and the like, and the effect is good.

The invention discloses a fragrance-adding treating process for yellow pear wood. The fragrance-adding treating process comprises the following steps: preparing materials, boiling by water, carrying out air drying, coating by oil, spraying wax and fumigating. According to the fragrance-adding treating process provided by the invention, manufactured furniture assembly is rich in fragrance, has high surface smoothness and lasting fragrance and is durable to use.

The invention discloses an antiseptic treatment technology for woodware, and relates to the technical field of woodware treatment. The technology comprises the first step of surface treatment, the second step of pre-preg treatment and the third step of resin impregnation. According to the provided antiseptic treatment technology for woodware, the antiseptic performance of the woodware is effectively improved, meanwhile, the longitudinal static bending intensity of the woodware can be effectively improved, and accordingly the mechanical performance of the woodware is improved.

The invention provides a flattening method for bamboo tubes in a high-temperature tank. The flattening method comprises the following technological steps that (1) pretreatment is conducted on the fresh bamboo tubes; (2) the bamboo tubes are stacked; (3) high-temperature self-flattening is conducted on the circular bamboo tubes in the tank; and (4) post-treatment is conducted after bamboo chips are flattened. The fresh bamboo tubs are subjected to rapid heating and heat-moisture treatment through high-temperature steam in the high-temperature saturated steam tank at the temperature of 130-160 DEG C, and the temperature of the bamboo tubes is made to reach the softening point of lignin, cellulose and hemicellulose. In this way, the circular bamboo tubes with saw kerfs are flattened through round bar steel in the bamboo tubes under the dead-weight action of weights such as external iron blocks, the treatment temperature in the bamboo tube flattening process is decreased, the labor intensity in the operating process of workers is relieved, and the severe environment is improved. The manufactured flattened bamboo tubes are better in physical and mechanical performance and other performance, attractive in color and suitable for art work fabrication, furniture fabrication and house decoration. An optimal processing method is provided for the bamboo industry.

The invention discloses a bamboo glue sleeper and a preparation method thereof. The preparation method comprises the following steps: (1) selecting a raw material; (2) cutting off the raw material according to a specified length, sectioning the cut-off raw material into strips, removing tabasheer and the bamboo outer skin, and processing the strips into thin bamboo skin pieces; (3) carrying out carbonization treatment on the thin bamboo skin pieces obtained in the step (2); (4) grinding the carbonized thin bamboo skin pieces into a siamesed fiber state; (5) putting the material obtained in the step (4) in phenol glue to carry out pressurization gumming; (6) carrying out automatic dehumidification on the material obtained in the step (5); (7) pressing and curing the material obtained in the step (6) into a slab; and (8) sawing the periphery width of the slab by 5 cm to eliminate the fringe effect during compression. The bamboo glue sleeper is low in carbon emission, environment-friendly and safe, does not deform when being affected with damp due to water, and is antiseptic, prevented from damage by worms, antiflaming and suitable for being used under a complex condition.