105 results about "Wood glue" patented technology

The invention relate to an artificial quick-growing natural plywood, which comprises a common plywood, a laminated veneer lumber, a blockboard, a wedge joint boardand and a technical wood. A dhesive obtained by chemically modifying a plant protein raw material is used for the invention, and the drying and dewatering are carried out after the steps of glue spreading and assembly in the process of processing the plate. The obtained plywood has a high bonding strength, no harmful gases such as aldehyde, beneze, etc., are discharged in the process of processing the plate and during the using period, and the waste plate does not cause the environmental contamination during the degradation in a natural environment. The artificial quick-growing natural plywood fundamentally terminates the harm done by the material selection and adhesives to the environments and the health of the human beings, realizes true production of environment-friendly artificial boards, and ensures that the artificial boards have the same natural properties as the saw log products made from raw wood both in process of production and use.

The invention discloses an adhesive glue specially used for wood plywood, which is mainly made of the following raw materials: mung bean starch, bisphenol A epoxy resin, modifier, urea, formaldehyde, melamine rubber powder, lignin, biological enzyme, Potassium hydrogen sulfate, polyglycidyl ether, chitosan, polyvinyl alcohol and sodium hexametaphosphate. The adhesive glue special for wood plywood of the present invention has the advantages of strong adhesion, good modeling and dispersibility, and reduces the consumption of formaldehyde, and the free formaldehyde emission of the synthesized adhesive glue product reaches the EO level standard (≤ 0.5mg / L), reducing the emission of formaldehyde, no harm to the human body, belongs to the green environmental protection adhesive. High bonding strength and strong water resistance. The method for preparing the adhesive is simple, does not require very high equipment, and reduces production costs.

The invention relates to a high strength plate of a turnover box, which is a plate or a multilayer plate manufactured by mixing fragment wood fiber and glue under high temperature and high pressure; a stiffener is positioned inside the wood fiber-glue mixed plate or between plate layers. The stiffener which is positioned inside the wood fiber- glue mixed plate or between the plate layers is a metal net inside the wood fiber-glue mixed plate or between the plate layers and the metal net can preferably be a plastic net or a glass fiber net; as the plastic net and the glass fiber net are compatible with wood glue so that the high strength plate with high density is generated; besides, the plastic net and the glass fiber net is not easy to be layer and separated from a body. In this way, the invention gets rid of the habit that the stiffener is not put inside the wood fiber plate by people; the invention greatly enhances the strength, especially anti-bending and anti-deformation capability.

The oxalaldehyde free fiber plate features in the making crushing of herb haulm for antiseptic treatment and air baking, applicable for water resistant wood glue making for glue application, air current steam and dehydration, air current spread and cold press to make blanks and heat forming. It replaces the wood by stalks and other material, reduces energy consumption and environment sacrifices, avoiding free formaldehyde emission, effectively solving the bubble and mold fall off issue.

The invention discloses a plastering-free curved concrete wall section steel back rib composite template and a construction method. The plastering-free curved concrete wall section steel back rib composite template comprises split bolts, steel pipe key keels, shaped channel steel, a wood glue boards, square pillars and galvanized iron sheets. The galvanized iron sheets are arranged between the curved concrete wall and the wood glue boards, and the wood glue boards are internally coated with the galvanized iron sheets. Two ends of the split bolts which penetrate through the curved concrete wallsequentially penetrate through the galvanized iron sheets, the wood glue boards, the shaped channel steel and the steel pipe key keels to be connected with nuts through threads. The construction method comprises the steps of positioning and paying off, shaped template manufacturing, reinforcing steel binding and concealed check acceptance, template assembling, template reinforcement, concrete pouring, form removal and maintenance. According to the plastering-free curved concrete wall section steel back rib composite template and the construction method, the template is completed and concreteis poured in the middle, so that the concrete structure is positioned accurately, the molding quality is good, the surface does not need to be plastered, and the operation is simple and easy; and theparts are subjected to batch processing, the construction speed is higher, the cost is low, the construction requirements can be met, and the economical and practical property is achieved.

The invention relates to a method for treating phenol-containing wastewater by regulating the pH value of the phenol-containing wastewater generated in phenolic resin (comprising thermoplastic and thermoset phenolic aldehyde) production and synthesizing into thermoset liquid phenolic resin having different purposes. The thermoset liquid phenolic resin can be applied to producing rockwool glue, wood glue, expandable phenolic resin, grinding materials, coatings and the like; the wastewater is comprehensively utilized; and the zero emission of the phenol-containing wastewater generated in the phenolic resin production is realized. The thermoset liquid phenolic resin is prepared from the following raw materials in part by mass: 100 parts of phenol, 38 to 90 parts of paraformaldehyde, 0.5 to 5 parts of catalyst, 20 to 180 parts of phenol-containing wastewater and 0.5 to 20 parts of modification aid.

The invention relates to a construction method for combined type fixed and integral lifting of an elevator shaft stereotyped operation platform. The platform consists of bearing diagonal rods, limit gear rods, horizontal joists, operation-platform vertical rods, transverse horizontal rods, longitudinal horizontal rods, square wood blocks, wood glue boards, steel pipes and high-strength bolts, wherein one end of each bearing diagonal rod is supported on a shear wall in an angle of 45 degrees, and the other end of the bearing diagonal rod is supported on a floor at the exit of an elevator compartment; the limit gear rods and the horizontal joists are arranged between the bearing diagonal rods; the operation-platform vertical rods are mounted on the bearing diagonal rods; the transverse horizontal rods and the longitudinal horizontal rods are in combined connection and fixed together with the operation-platform vertical rods; wood glue boards are laid on the corresponding transverse horizontal rods and longitudinal horizontal rods; each steel pipe penetrates through shear-wall reserved holes and is inserted in the corresponding transverse horizontal rod, and the steel pipe and the transverse horizontal rod are fixed together. The construction method mainly comprises the following steps: setting up the bottom bearing diagonal rods; mounting the limit gear rods; mounting the horizontal joists, setting up the operation-platform vertical rods; setting up a lower operation platform; setting up an upper operation platform; and overall lifting the operation platform and the like.

The invention discloses a wood gluing device. The wood gluing device comprises a gluing mechanism and a glue outlet mechanism; the gluing mechanism includes a frame and a worktable; the worktable is connected to a worktable; the glue outlet mechanism includes a glue storage pool, a glue conveying pipe, a glue storage box and a glue brushing roller; the glue storage pool is connected with the glue storage box through the glue conveying pipe; a piston is arranged in the glue conveying pipe, and is connected with a cylinder; a first one-way valve is arranged on one side, near the glue storage pool, of the glue conveying pipe, and a second one-way valve is arranged on one side, near the glue storage box, of the glue conveying pipe; and the glue brushing roller is rotationally connected to the bottom end of the glue storage box, and is positioned above the worktable. The wood gluing device solves the problem of low efficiency caused by discontinuous operation of manual gluing in the prior art, and is continuous in gluing.

The invention discloses a combined circular chamfer wood formwork and a manufacture method of the combined circuit chamfer wood formwork, which have a short period of manufacture, high repeated utilization rate, low one-off investment and low cost of construction. The manufacture method of the combined circuit chamfer wood formwork comprises the steps of selecting materials, manufacturing and assembling. The combined circuit chamfer wood formwork comprises an arc-shaped outwards convex bamboo-glue panel (1), connecting plates (2) arranged at two ends of the bamboo-glue panel (1), a plurality of wood-glue positioning plates (3), and a plurality of rear ribs (4) fixedly connected with the wood-glue positioning plates (3), wherein the plurality of wood-glue positioning plates (3) and rear ribs (4) are arranged at the back of a convex part of the bamboo-glue panel (1) and connected with the connecting plates (2). The combined circular chamfer wood formwork can be widely applied to constructing a railway, an abutment of a highway, and other beam bodies.

The invention discloses a strong-adhesion liquid wood adhesive powder, relates to the adhesive field, and particularly relates to an environment-friendly adhesive without wood adhesive powder. The strong-adhesion liquid wood adhesive powder comprises following components in parts by mass: 5-10% of polyvinyl alcohol, 5-8% of calcium chloride, 20-30% of calcium carbonate, 8-15% of starch, 25-35% of A material, 5-15% of diatomite, 0.2-1% of antifoaming agent, 0.2-1% of preservative, 0.3-1% of dispersant, 1-2% of plasticizer and 20-30% of water. The strong-adhesion liquid wood adhesive powder prepared by the above formula has strong adhesion, no benzene, no aldehyde, no toxicity and no harm, and is environment friendly, low in carbon, high in solid content, small in shrinkage, good in initial adhesion, fast in drying speed, resistant in freezing resistance and easy in gluing and the like.

The invention relates to a foam concrete material prepared from waste cement mortar, foam concrete and a preparation method thereof. The foam concrete material comprises the waste cement mortar, cement, wood glue powder, gypsum, slaked lime and foaming agent foam. The foam concrete material is prepared from the waste cement mortar, so the waste cement mortar can be recycled and the environment is protected; the foam concrete material can be prepared into heat-insulated soundproof high-strength foam concrete building blocks, the building blocks are massively applied to construction works, and the construction cost of the construction works is reduced; and the waste cement mortar is recycled, so the cost is saved and the environment cannot be polluted.

The invention discloses a bamboo-based flat pallet used for a logistics operation and a production method thereof. The bamboo-based flat pallet used for the logistics operation comprises a support plate and a cushion block, wherein the support plate comprises an upper cover layer and a lower cover which are made of bamboo plywood; a plurality of supporting bamboo rings are arranged between the upper cover plate and the lower plate; an edge banding is arranged between the edges of the upper cover plate and the lower cover plate. The upper cover plate, the lower cover plate and the supporting bamboo rings are glued by bamboo-wood glue and formed into a plate by hot pressing; thus, the materials are saved, the cost is reduced and the mechanical property is good. The bamboo-based flat pallet used for the logistics operation, provided by the invention, can replace a wood pallet to relieve the growing logistics pressure due to the ambient pressure and the lack of wood.

The invention discloses an inflaming retarding wave absorbing type carbon fiber composite wood board. The inflaming retarding wave absorbing type carbon fiber composite wood board is a plate layer structure body of a split structure. The inflaming retarding wave absorbing type carbon fiber composite wood board is formed in the manner that alkaline liquid immersing pretreatment is conducted on an ordinary wood board I, a hard wood board and an ordinary wood board II, inflaming retarding agent treatment and drying are conducted, pressing connection of the ordinary wood board I and a polyimide layer through a first wood glue layer, pressing connection of the polyimide layer and a carbon fiber layer through a first inflaming retarding wave absorbing bonding layer and pressing connection of the carbon fiber layer and the hard wood board through a second inflaming retarding wave absorbing bonding layer are sequentially conducted, and the hard wood board is in pressing connection with the ordinary wood board II through a second wood glue layer. The composite wood board retards inflaming and absorbs waves, the oxygen index reaches 42-48, the parallel-to-grain compressive strength is larger than 100 MPa, the anti-bending strength is larger than 200 MPa, the lead equivalent value is larger than 0.012 Pb / mm, infrared, X, alpha, beta rays and other electromagnetic waves can be effectively absorbed, and the anti-radiation performance is high. The invention further discloses a manufacturing method for the inflaming retarding wave absorbing type carbon fiber composite wood board.

The invention discloses a wood bonding glue, which comprises the following components in parts by weight: 8 parts of cyclohexanone, 20 parts of urethane acrylate, 6 parts of biphenyl, 10 parts of azodicarbonamide, 2 parts of zinc oxide, 6 parts of benzoyl peroxide, 15 parts of glyceryl methacrylate gel, 16 parts of polyisocyanate, 30 parts of epoxy resin, 7 parts of methyl methacrylate, 6 parts of benzoyl peroxide, difluorotetrachloroethane 18 parts, 6 parts of butyl acetate. The wood bonding glue provided by the invention has wide sources of raw materials, low price, environment-friendly glue, less pollutants, good bonding effect, fast drying and stable quality.

A billiard table is enhanced by inserting an additional wood layer between the slate and the frame. Preferably, the additional wood layer is cut into two halves and placed on top of the frame such that there is space between the half boards. Slots are cut perpendicular to the longitudinal axis of the half boards to match the position studs on the interior beams. The angular table legs are enhanced by having the side boards of the legs cut at 45 degree angle at the connecting surface and creating a duct perpendicular to the connecting surface with a strip of wood glued into the duct running along the length of the leg. The table legs are further enhanced by inserting a strip of wood at the interior corner of the leg, forming a triangle with the two adjacent side boards. This invention reduces the overall cost of production.

The invention discloses a wood glue stirring device and relates to the field of wood processing equipment. The wood glue stirring device comprises a base, a stirring shaft, a supporting column and a waste gas treatment tank, wherein the supporting column and the waste gas treatment tank are arranged on the base; a mounting zone for placing a glue barrel is formed in the base; the supporting column is mounted on a sliding rail of the base; the distance between the supporting column and the mounting zone is adjusted by moving the position of the supporting column on the sliding rail; a vertical rotating shaft is arranged on a beam; the rotating shaft is connected with the stirring shaft through a coupling sleeve; the stirring shaft comprises a central spindle and dual screw blades arranged on a rotation surface of the central spindle; a cover plate used for covering the bucket mouth is arranged on the central spindle; an air suction port is formed in the cover plate and is communicated with the waste gas treatment tank through an air pump; the waste gas treatment tank comprises two adjacent water tanks in the tank body; each water tank is provided with an independent air inlet pipe and an independent air outlet pipe; the air inlet pipe of each water tank is introduced into liquid in the corresponding water tank; waste gases sequentially flow through the two water tanks, enter the liquid from the air inlet pipes and are discharged out of the water tanks from the air outlet pipes.

The invention relates to a preparation method of a slow-release type multifunctional adhesive. According to the method, through activation treatment of halloysite nanotubes and loading with a functional drug, the long-acting slow-release multifunctional adhesive is prepared, and a bamboo-wood glued material is further prepared; with use of the effect of the drug slow-released from the halloysite nanotubes, corrosion resistance, mold prevention, inhibition of formaldehyde release and multiple functions of the bamboo-wood glued material are achieved, and the long-acting effect and controllability are maintained at the same time. The method has the advantages of simple process, wide application range and high technical added value.

The invention discloses a glue storage type plywood gluing system. The system comprises a gluing box, a material pushing conveying belt, an upper glue wheel and a lower glue wheel; the material pushing conveying belt is located outside the gluing box; the upper glue wheel and the lower glue wheel are located in the gluing box and are grouped; a coaxial fixed eccentric cylinder is arranged in the upper glue wheel; a corresponding upper glue storage box is arranged on one side of the upper glue wheel; and a glue feeding roller is arranged inside the upper glue storage box. According to the gluestorage type plywood gluing system, an existing gluing roller surface gluing mode is changed, gluing is conducted through glue storage in the glue wheels and the centrifugal force effect, gluing is efficient, meanwhile, gluing power comes from the moving force of a plywood, power sharing is achieved, the gluing and force applying steps can be effectively saved, and energy consumed by gluing is saved.

The invention discloses a comprehensive cutting system for defect removal of a wood-plastic plate. The system comprises a rack, a plurality of parallel conveying belts arranged on the rack, cutting blades located between the conveying belts, a detection plate located above the conveying belts and used for detecting defects of wood plates as raw materials, a feeding roller and a limiting roller set. The wood plates as the raw materials sequentially pass through the cutting blades, the detection plate, the feeding roller and the limiting roller set. The comprehensive cutting system for the defect removal of the wood-plastic plate is used to remove the defects of the wood plates as the raw materials of the wood-plastic plate, and the quality and the defect removal efficiency of the raw materials of the wood-plastic plate can be improved. A defect cutting piece and a defect removing piece of the comprehensive cutting system share power, the structure is compact, stable delay power can be formed in the power sharing process, the whole process can be accurately and effectively carried out, and efficient and stable machining can be conveniently achieved.

The invention discloses a recycling technique of construction waste wood lumps. The technique includes: piling construction wastes in four types, namely, wood, metal, textile and brick; setting a wood processing yard on a construction site, and abutting short wood lumps into long ones for recycling. The waste wood lumps can be connected to long ones within 4 m in length; by calculation according to the conventional specification 2 m, comprehensive cost for processing of each single wood lump is about 2.5 RMB, special wood glue is used, the cost for connecting of each long one is about 0.6 RMB, and 10 wood lumps can be processed per man per hour. Economic cost is evidently lowered, and benefit is significantly improved. The recycling technique is mainly applicable to outskirt construction sites; the lengthening technique is also applicable to large-scale production of wood lumps in wood lump factories.

A method for extending resin-based wood glues, particularly condensation polymer resin-based glues, comprises the steps of (i) providing an aqueous extender composition comprising 20% to 50% by weight of alkali metal silicate and 1 % to 25% by weight of polyhydric alcohol, preferably a sugar such as sucrose, (ii) providing a solution comprising a resin and (iii) blending the aqueous extender and the solution together to form a glue. The extended glues are suitable for preparing water resistant processed wooden panels such as plywood or chipboard with reduced need for resin. The extended glues do not set excessively rapidly, allowing time for the processing of the wood composites.

The invention discloses a linkage type board defect cutting device which comprises a rack provided with a plurality of parallel conveying belts, cutting blades located between the conveying belts, a detection plate located above the conveying belts and used for detecting board defects of a raw material board, a feeding roller and a limiting roller set. The raw material board sequentially passes through the cutting blades, the detection plate, the feeding roller and the limiting roller set. A wood-plastic board defect removal comprehensive cutting system is used for defect cutting of the raw material board of the wood-plastic board, the quality and the defect removal efficiency of the wood-plastic board raw materials can be improved, a defect cutting piece and a defect removing piece of thewood-plastic board defect removal comprehensive cutting system can be linked and share power, the whole linkage type board defect cutting device is compact in structure, stable delay power can be formed in the power sharing process, the whole process can be accurately and effectively carried out, and efficient and stable machining can be conveniently achieved.

The invention provides a wood gluing device which is simple in structure and capable of facilitating stirring and improving gluing reliability. The wood gluing device comprises a workbench, a glue dropping mechanism, a conveyor belt and a scraping plate. The glue dropping mechanism comprises an n-shaped stand frame, a motor, a stirring disk and a glue tank. The stand frame is arranged on the workbench and comprises a transverse rod and a pair of vertical rods. The motor is arranged on the bottom of the transverse rod. The motor drives the stirring disk. The stirring disk is provided with stirring pipes. The glue tank is located between the pair of vertical rods. The stirring pipes are located in the glue tank, and the bottom of the glue tank is provided with an outlet. The conveyor belt isarranged on the workbench and located between the pair of vertical rods, and the conveyor belt is located under the glue tank. The two ends of the scraping plate are provided with insertion rods, andthe scraping plate is located in front of the outlet of the glue tank. The wood gluing device is convenient to machine and low in cost, and the working efficiency is improved.

The invention discloses a method for producing a composite wood board by using waste wood as a base material. The method comprises the steps of wood dust and flour preparation, material blending, pressure casting for forming, and cooling, wherein in the step of material blending, the flowing material in mass percentage are added: 57-74% of wood dust and flour, 5-10% of carbon fibers, 18-25% of a flame retardant, 1-3% of an ultraviolet light absorber and 2-5% wood glue powder; the flame retardant is nano magnesium hydroxide of which the surface is subjected to activating treatment with a silane coupling agent. The method has the advantages of being simple in process, efficient, environment-friendly and the like, and uses waste wood as the main raw material, so that the production cost is reduced; obtained products have the advantages of being high in strength, wear-resistant, flame-retardant, good in plasticity, excellent in dimensional stability, and the like, can replace wood to be used in the fields of architectural decoration, furniture and the like, and are durable.

The invention discloses a wood gluing device with pre-drying and efficient grinding functions. The wood gluing device comprises a box body, a gluing cavity is formed in the box body, clamping plates are connected in the gluing cavity in a front-back symmetrical sliding mode, a replacement groove with a rightward opening is fixedly formed in the left end wall of the gluing cavity, a clamping telescopic air bag is fixedly connected between the end face, away from the replacement groove, of the clamping plate and the gluing cavity, connecting air pipes are fixedly arranged on the end face, away from the replacement groove, of the clamping telescopic air bag, the left ends of the connecting air pipes on the front side and the rear side are both in power connection with a control air pump, andthe left end of the control air pump is in power connection with a through pipe with the left end communicating with the outside. Wood can be dried before gluing, glued workpieces are conveyed after the water content is the same, airtight conveying is immediately conducted after drying is completed, the two gluing faces are polished at the same time before gluing liquid is smeared, and the two gluing surfaces can be uniformly smeared at the same time through bristle blocks on the two sides.

The invention relates to the field of building materials, in particular to a preparation method of a high-strength environment-friendly wood plywood. The preparation method comprises the steps of uniformly mixing an adhesive, dried wood flour, reinforced fibers and a flame retardant in parts by weight to prepare the single-layer wood plywood; carrying out corona treatment on the single-layer wood plywood, and compositing multiple layers of wood plywood slabs; and then carrying out heating treatment. The wood plywood prepared by the preparation method is good in mechanical property, the tensile strength is greater than or equal to 35.2 MPa, the bending strength is greater than or equal to 63.3 MPa, the flexural modulus is greater than or equal to 4810 MPa, the impact strength is greater than or equal to 9.3 kJ / m<2>, ammonia odor is avoided, the formaldehyde emission is less than or equal to 0.5 mg / L, and the wood plywood meets national standards, can be used as an indoor plate, and is more environmentally friendly and healthier.

The invention discloses a wood gluing device. The wood gluing device comprises a pneumatic pump, the output end of the pneumatic pump is fixedly connected with one side of a pressure chamber through aguide pipe, and the surface of the pneumatic pump is fixedly connected with the inner wall of a shell; the inner wall of the shell is movably connected with the side face of a pressure plate, and thesurface of the lower portion of the shell is fixedly connected with one end of a material conveying guide pipe; the other end of the material conveying guide pipe is fixedly connected with one end ofa telescopic pipe, the surface of the telescopic pipe is movably connected with the inner wall of a main body, and the other end of the telescopic pipe is fixedly connected with one end of a horizontal pipe; and the other end of the horizontal pipe is fixedly connected with one end of a glue discharge pipe, and the surface of the horizontal pipe is movably connected with the inner wall of a gluedischarge roller. According to the wood gluing device, the material conveying guide pipe, the telescopic pipe, the horizontal pipe, the main body, the glue discharge roller, the glue discharge pipe, aglue pressing roller and a rolling shaft are arranged, therefore, glue can be evenly applied to the side face of wood through the device, and the effect of conveniently applying the glue to the sideface of the wood is achieved.

Distiller's Grain (DG) based bio-adhesives consisting of DG biomass, crosslinking agents, and fillers are described as substitutes for formaldehyde based wood glue for making wood panels. Algal bio-adhesives consisting of algal biomass, crosslinking agents, and fillers are described as substitutes for formaldehyde based glue for making wood panels. Processes for preparing such DG based bio-adhesives and algal bio-adhesives are provided, comprising the steps of: combining DG biomass or algal material with a cross-linking agent and inorganic fillers to form a blend; micronization or homogenization of the blend to obtain powdery material; and mixing the powdery material with additional water to form a bio-adhesive.