77results about How to "Not easy to warp and deform" patented technology

The invention relates to a lightweight plastic-wood composite sheet and a preparation method thereof. The preparation method comprises the following steps of: firstly stirring PVC particles and tribasic lead sulfate evenly in a stirred tank, and then adding wood flour, LDPE-g-GMA, hollow glass beads, chlorinated polyethylene, ethylene bisstearamide and hard fatty acid butyl ester to the tank, heating up and stirring evenly, cooling and taking out the mixture, and then stirring the mixture evenly with baking soda and citric acid at room temperature, extruding out and molding. The lightweight plastic-wood sheet has the advantages of convenient production and manufacture, high degree of mechanization in the production process, low production cost, low density, light weight, easy installation and maintenance, less use of timber and plastic, turning waste into treasure, being recyclable and not destroyed by insects, no aging and discoloration as well as cracking, no buckling deformation and high impact strength, with the function of adsorbing gas. The lightweight plastic-wood sheet can be applied to a plurality of occasions such as office buildings, hotels and home offices, can be made into products such as photo frames, picture frames, foot lines, and hoisting and fastening boards, and can also be used as suspended beams, pergolas, and the like.

The invention discloses a sandwich material plate and a preparation method thereof, relates to a composite material, an environment-friendly material and a preparation method thereof, and is applied to manufacturing door plates, instrument panel frames, trunk liners, rear shelf panels for vehicles and the like of automobiles, airplanes and other means of transportation, building templates, clapboards, seaside floors, industrial floors and the like in the field of buildings, outdoor open tables and chairs, storage tanks, movable shelves and the like in the furniture industry, and pavement plates, flower boxes and the like in municipal landscape engineering. The sandwich material plate consists of 2 to 4 layers of flax fabric reinforced plastic layers and wood plastic composite material layers, wherein 3 to 5 wood plastic composite material layers are pressed between two adjacent flax fabric reinforced plastic layers; the flax fabric reinforced plastic layers are formed by pressing flaxfabrics treated by plastic particles and silane coupling agents; and the wood plastic composite material layers are prepared by drying, mixing and rolling the plastic particles, wood powder, interface solubilizers, calcium carbonate, lubricating agents and plasticizers.

The invention discloses a high-structural-strength three-dimensional solid wood composite board which comprises a hard base layer and further comprises a first capacity layer group, a second capacity layer group and a surface layer, wherein the first capacity layer group and the second capacity layer group are arranged on the two sides of the base layer, wherein each of the first capacity layer group and the second capacity layer group is provided with at least one flexible capacity layer; the surface layer is arranged on the surface of the first capacity layer; a decoration groove is formed in the surface layer; and the bottom of the decoration groove is embedded into the first capacity layer group. The hard base layer can provide enough mechanical strength for the whole board and support the capacity layers and the surface layer in the board, so as to prevent the board from deforming in the process of making the decoration groove under high pressure. The solid wood composite board provided by the invention has a brand-new structure different from that of a conventional board, has the characteristics of stereoscopic vision, high mechanical strength and long service life, further has the advantages of low formaldehyde release amount and environment friendliness in use and can be widely applied to the fields of home decoration, artwork processing, commercial place decoration and municipal construction.

The invention provides a preparation method of an ultraviolet-curing polyurethane-modified organic silicon resin for 3D printing. The method comprises the following steps: carrying out hydrolysis reaction on epoxy-group-containing alkoxy silane to obtain an epoxy-group-containing hydroxyl-terminated silicone resin, carrying out reaction on the epoxy-group-containing hydroxyl-terminated silicone resin, diisocyanate and polyether dibasic alcohol to obtain a prepolymer, and reacting to obtain an epoxy-group-containing polyurethane-modified organic silicon resin; uniformly mixing the epoxy-group-containing polyurethane-modified organic silicon resin with an ultraviolet photosensitizer, and carrying out vacuum degassing to obtain the ultraviolet-curing polyurethane-modified organic silicon resin for 3D printing. After the polyurethane-modified organic silicon resin is printed by an ultraviolet 3D printer, the obtained product has low buckling deformation tendency, the Shore hardness is 35-65A, the tensile strength is 0.3-2.5 MPa, the water absorptivity is 1-4.5%, and the linear expansion coefficient is 0.4-1.4%.

The invention relates to a method for preparing a fiber particle board and aims to provide a method for preparing the fiber particle board which has high wood utilization rate, is difficult to warp or deform, has a flat panel and is easy to realize mechanical production by processes of drying, sizing, paving and the like. In the technical scheme disclosed by the invention, the method for preparing the fiber particle board is characterized by comprising the following steps of: (1) small-diameter wood milling; (2) wafer grinding; (3) pipeline sizing; (4) fiber fine wood wool drying; (5) paving (6) prepressing; (7) hot pressing; and (8) post processing. The method for preparing the fiber particle board is suitable for the industries of furnitures, decoration and the like.

The invention discloses a carbon fiber paper reinforced thermoplastic resin sandwich composite material. The composite material is formed through compounding two resin skin layers and a core layer positioned between the two resin skin layers, every resin skin layer is a thermoplastic resin composite material layer, and the core layer is a carbon fiber paper reinforcement. The invention also discloses a preparation method of the composite material. Clamping of the carbon fiber paper reinforcement between resins is similar to the effect of steel bars in concrete, so the carbon fiber reinforcement effect of carbon fiber papers is guaranteed, the continuity and the load transmission and dispersion property of the fiber reinforcement are guaranteed, the material is isotropic, and the integral performances of the composite material are improved; and the continuously distributed carbon fibers are in favor of forming effective channels among the carbon fibers in order to well show the conductive, antistatic and electromagnetic shielding functions.

A wood-plastic flooring structure convenient and quick to install comprises a supporting body, wood-plastic flooring unit bodies and rotatable buckles. Multiple parallel protruding guide rails are arranged on the supporting body in the length direction of the supporting body. Multiple inserting connecting grooves adjacent to the corresponding guide rails are evenly formed in the direction of the guide rails. Guide grooves are formed in the bottoms of the wood-plastic flooring unit bodies in the length direction of the wood-plastic flooring unit bodies and matched with the guide rails on the supporting body. The spliced sides where the wood-plastic flooring unit bodies are spliced with one another are provided with grooves in the long edge direction of the wood-plastic flooring unit bodies. Each rotatable buckle is in a T shape and comprises a horizontal clamping board and a vertical clamping board. Each horizontal clamping board is clamped in the grooves of the corresponding two adjacent wood-plastic flooring unit bodies. The bottom of each vertical clamping board is clamped in the corresponding inserting connecting groove in the supporting body. By the adoption of the provided wood-plastic flooring structure, the structural form that the supporting body and the wood-plastic flooring unit bodies are combined is adopted, dampness can be effectively prevented, installation is convenient and quick, and in the installation process, the labor cost and later maintenance cost can be saved.

The invention relates to a veneer/aluminum foil composite decorating facing material which structurally comprises kraft paper, a copolyester hot-melt glue film PES, aluminum foil, a holt-melt glue film H420 and veneer. The upper glue applying surface of the aluminum foil is bonded to the kraft paper through the copolyester hot-melt glue film PES, and the lower glue applying surface of the aluminum foil is bonded to the veneer through the holt-melt glue film H420. A manufacturing method of the veneer/aluminum foil composite decorating facing material comprises the following steps that firstly, the upper glue applying surface of the aluminum foil is treated; secondly, the kraft paper, the copolyester hot-melt glue film PES and the aluminum soil are subjected to the assembling, hot pressing and cooling process to form an aluminum foil/kraft paper enhanced material; thirdly, the lower glue applying surface of the aluminum foil is treated; fourthly, the dried veneer, the holt-melt glue film H420 and the aluminum foil/kraft paper enhanced material are subjected to the assembling, hot pressing and cooling process treatment to form the veneer/aluminum foil composite decorating facing material. The veneer/aluminum foil composite decorating facing material has the advantages of being high in decoration performance, environmentally friendly, free of pollution and superior to a natural veneer facing material on physical and mechanical properties such as static bending intensity and bending resistance.

An embodiment of the invention relates to an electron beam scanning method, a refractory metal member and an electron beam selective melting device. The electron beam scanning method includes the steps of receiving electron beam scanning path data, wherein the scanning path data are generated by planning according to slice data of a to-be-processed workpiece model and comprise a first scanning path and a second scanning path which are different; and after the electron beam selective melting device is filled with powder, conducting first electron beam melting scanning on a metal powder layer obtained powder paving according to the first scanning path, and then conducting second electron beam melting scanning according to the second scanning path. By means of the embodiment, the two different scanning paths are used for conducting electron beam selective melting scanning on the metal powder layer by using the two different scanning paths, on one aspect, thermal stress distribution is more uniform, and part layer warpage and deformation are not prone to being caused; and on the other hand, the metal powder layer is subjected to two times of electron beam selective melting scanning insequence, and therefore the defect of poor fusion of part layers is overcome to a certain extent.

The invention provides a making method of a substrate with a support. The making method comprises the following steps: forming the substrate, wherein the substrate comprises an effective zone for forming a device and an edge zone positioned at the periphery of the effective zone; forming a support plate in a shape corresponding to that of the edge zone of the substrate, wherein the support plate comprises a binding face matched with the substrate; binding and fixing the binding face of the support plate with the edge zone of the substrate. The making method has the benefits that the support plate is bonded with the substrate, so that the support plate has a function of reinforcing the edge of the substrate, and accordingly, can prevent the substrate from warping to a certain extent; the support plate and the substrate are bonded with one another and do not need to be disassembled. Compared with the mode of disassembling the bracket in the prior art, the making method can reduce the possibility that the substrate is damaged and broken.

The invention discloses high-temperature rough epoxy resin and a preparation method of a rapidly formed carbon fiber prepreg thereof. The preparation method is characterized by comprising the following steps: preparing a high-temperature rough epoxy resin matrix containing polyurethane soft segments and rigid five-membered rings, synthesizing isocyanate-terminated polyurethane prepolymer from diisocyanate and polyhydric alcohols, and carrying out a ring-opening reaction on the epoxy resin so as to obtain the high-temperature rough epoxy resin matrix; kneading a rapid curing system and a liquidepoxy resin to prepare a curing agent master batch component, and adding the curing agent master batch component into the high-temperature rough epoxy resin to be uniformly mixed so as to obtain a resin system for prepreg; preparing a resin adhesive film according to a hot-melt method, and compounding with carbon fibers or fabrics, thereby obtaining the rapidly formed prepreg. The resin system prepared from the high-temperature rough epoxy resin can realize curing within 5 minutes at 150 DEG C, the glass-transition temperature is high, and the prepared prepreg is excellent in manufacturability, excellent in breaking tenacity, applicable to rapid forming of a composite material, easy for high-temperature demolding and difficult in buckling deformation and can be applied to the field of rapid forming of the carbon fiber composite material on a large scale.

The invention discloses tempered glass which comprises the following raw materials: water-base resin, kaolin, barium sulfate, potassium pyrophosphate, water glass, strontium carbonate, silicon dioxide, nano-silver, molybdenum oxide, calcium oxide, magnesium carbonate, zirconium dioxide, yttrium oxide, ferric oxide, plant starch, copper powder, kieselguhr, manganese oxide, silicon nitride, potassium feldspar, glass fiber, zinc sulfate, medical stone, sodium borate and aluminum powder. The toughness and strength of the tempered glass disclosed by the invention are greatly promoted, the temperedglass cannot be cracked and damaged easily, the use of the glass is safer and more convenient, the tempered glass cannot warp and deform easily and the shock resistance is higher.

The invention provides a hybrid fiber grid fabric reinforced polypropylene compound filtering plate and a preparation method thereof. A complex fiber reinforced polypropylene, which is formed by weaving inorganic fiber with organic fiber, is taken as a main material of the filtering plate. The filtering plate is prepared from the following components in parts by weight in the manner of die-cast formation: polypropylene resin, inorganic mineral powder, continuous inorganic fiber, continuous organic fiber, coupling agent, antioxidant and lubricating oil. According to the preparation method provided by the invention, due to the compound components and structure characteristics of gridding cloth, the whole structure and mechanical properties of the filtering plate are isotropic. A molding method of gradually increasing pressure and temperature and maintaining pressure and temperature is adopted and pressing molding under room temperature is performed, so that the internal stress of the filtering plate is relieved and the compactness, density and size of the filtering plate are stable and uniform.

The invention relates to an anti-deformation solid wood composite board and a processing method thereof. The solid wood composite board comprises a solid wood base layer and a surface layer. The solid wood composite board is characterized in that a plurality of transverse tenons are embedded into the solid wood base layer at intervals in the width direction of the solid wood base layer, balance tenon edges protruding outwards are arranged on the two sides of each tenon, a plurality of tenon grooves are formed in the solid wood base layer correspondingly, a certain distance is reserved between the inner bottom face of each tenon groove and the lower surface of the solid wood base layer, and the upper surface of each transverse tenon and the upper surface of the solid wood base layer are on the same plane. According to the anti-deformation solid wood composite board and the processing method thereof, in the using process, fibers in the solid wood base layer is cut off through the transverse tenons, therefore the solid wood base layer is prevented from contracting and deforming due to the changes of external environment, transverse and longitudinal tension is balanced through the transverse tenons, and therefore the solid wood base layer is not liable to crimp and deform. Because a processing method that grooving and keel adding are conducted on the upper face and the lower face of the same solid wood plate blank and the solid wood plate blank is sawed in half into two anti-deformation solid wood composite boards is adopted, the anti-deformability of the solid wood composite board is further ensured.

The invention discloses a method for preparing a composite coating through electromagnetic induction heating, and belongs to the technical field of electromagnetic induction heating. The method comprises specific steps that a base body surface is subject to roughening and cleaning treatment, a to-be-sprayed surface of a base body is covered with or pasted with a hollow-out screen, thermal spraying is carried out, and after the screen is removed, an electromagnetic induction heating composite coating evenly divided by grooves is obtained; or the base body surface is directly subject to thermal spraying, then, mechanical cutting is carried out, and the electromagnetic induction heating composite coating which is evenly divided by the grooves is obtained; the thermal spraying coating is separated into a plurality of electromagnetic induction heat source coating blocks, the base body is more evenly heated, and stress is more dispersed; and after dividing is carried out, even if the part of a heating layer falls off or is damaged, continuous using of other parts of coating and a whole product is not affected, and a repairing technology is simple.

The invention relates to improvement of clay target used for environment-friendly shooting sports, in particular to a ceramic clay target. The clay target is characterized in that the clay target is mainly formed by press forming of mineral mixed powder, then the mineral mixed powder is subject to soft burning to achieve proportion of 1.5-2.5g/cm, water absorbing capacity of 10-20% and breaking resistance of 50-80N. The ceramic clay target can not only meet the requirement for proportion, strength and easy shattering in the use requirement of clay targets, but also lead the clay target to absorb sufficient water or goes through weathering after being shattered, so that the clay target can be naturally decomposed to natural matter inorganic mineral powder to be returned to the nature; as a result, possible pollution to the environment caused by pieces of the clay target is completely avoided, and no artificial cleaning and collection of pieces is needed, thereby offsetting the defects of difficulty in natural decomposition of the clay target into powder after being shattered and the need for artificial cleaning and recovery and being an environment-friendly ceramic clay target with convenient use.

The invention provides a rapid reinforcing device for river dam roadbed protective slope. The rapid reinforcing device comprises a slope and a metal net covering the slope surface of the slope, wherein the metal net is fixed to the slope surface of the slope through a plurality of evenly-distributed fixing devices; and each fixing device comprises a pressing plate, wherein the left side inclined face of the pressing plate is in contact fit with the right side face of the metal net, the left side wall of the pressing plate is fixedly connected with a barrel with an opening in the right side, the middle of the left side wall of the barrel and the middle of the plate face of the pressing plate are each provided with a first through hole located in the same horizontal straight line, the two first through holes are internally connected with the same transverse outer threaded pipe through sealing bearings, and the right end of the outer threaded pipe is fixedly connected with a bolt head. The rapid reinforcing device is compact in structure and reasonable in design, the metal net is pressed on the slope through the multiple fixing devices and is not prone to sliding, the pressing platesof the fixing devices play a role in attaching the metal net to the slope, the metal net is not prone to warping deformation, after a pressing block presses tarpaulin, the gap between the tarpaulin and the pressing plates and the gap between the tarpaulin and the slope cannot be too large, and rainwater is not prone to scouring the protective slope.