904results about How to "Fast curing" patented technology

The invention discloses a heat insulation aluminum profile and a preparation method thereof, and belongs to the technical field of aluminum profile preparation. The heat insulation coating is electrostatically sprayed on the surface of the aluminum profile, the coating takes epoxy resin as a matrix, the aluminum profile is separated from the external environment, and the corrosion resistance and the heat insulation performance of the aluminum profile are improved; compared with common nano ATO, the prepared modified nano ATO has better compatibility with an epoxy resin matrix, the agglomeration phenomenon is obviously reduced, and the heat insulation performance of the coating can be greatly enhanced; the prepared modifier can significantly enhance the flame retardance and heat resistance of the coating, can promote curing of epoxy resin, is grafted on nano ATO, and is stable in performance and not prone to falling off; therefore, the prepared aluminum profile is excellent in heat insulation property and corrosion resistance, the coating sprayed on the surface of the aluminum profile has stable and efficient flame retardance and heat resistance, and the aluminum profile has important application value in the technical field of aluminum profile preparation.

The invention relates to the technical field of lubricating coatings, in particular to a low-temperature curing lubricating coating for a fan bearing and a preparation method of the low-temperature curing lubricating coating. The lubricating coating is prepared from the following components in parts by weight: 55 to 65 parts of mixed solvent, 10 to 15 parts of composite bonding resin, 10 to 15 parts of modified lubricating filler, 8 to 12 parts of wear-resistant filler, 0.5 to 3 parts of dispersing agent, 0.5 to 1 part of micronized dicyandiamide, 0.5 to 2 parts of flatting agent, 0.5 to 2 parts of defoaming agent and 0.5 to 1 part of anti-settling agent, wherein the composite bonding resin is prepared from the following components in parts by weight: 10 to 20 parts of organic silicon resin, 15 to 30 parts of novolac epoxy resin, 15 to 30 parts of urethane acrylate and 35 to 45 parts of polyhydroxy polyether resin; the modified lubricating filler is obtained by modifying mixed powder containing molybdenum disulfide and polytetrafluoroethylene. The adhesive force, the wear resistance and the lubricating property of the lubricating coating can be improved, and the curing temperature can be reduced.

The invention discloses water-based formaldehyde-free woodworking glue and a preparation method thereof, and relates to the technical field of woodworking glue. When the water-based formaldehyde-free woodworking glue is prepared, firstly, n-butyllithium is used as an initiator to initiate cyclosiloxane and an acrylate monomer to be polymerized, then dimethyl chlorosilane is used for blocking to obtain pre-modified polyacrylate, and the pre-modified polyacrylate is used for preparing the water-based formaldehyde-free woodworking glue. Reacting the pre-modified polyacrylate with vinyl diphenylphosphine, and then reacting with 3-(4-bromophenyl)-1-propylene to obtain modified polyacrylate; secondly, reacting the 4-(trimethoxysilyl) butyraldehyde modified silicon dioxide with chitosan, and then reacting with mercaptoacetic acid to obtain modified silicon dioxide; finally, mixing the modified polyacrylate, the modified silicon dioxide, an emulsifier, a defoaming agent, pure water and a photoinitiator to obtain the water-based formaldehyde-free woodworking glue. The water-based formaldehyde-free woodworking glue prepared by the invention has flame retardance and antibacterial property.

The invention relates to the technical field of adhesives, and discloses a weather-resistant transparent adhesive, a preparation method and application of the weather-resistant transparent adhesive to adhesion of a weather-resistant and wear-resistant transparent film and a color-coated sheet. The preparation method of the weather-resistant transparent adhesive comprises the following steps: reacting 4-(2, 3-ethylene oxide) benzaldehyde with tetrakis (3-mercaptopropionic acid) pentaerythritol ester to obtain an intermediate product A; reacting the intermediate product A with 4, 5-diaminobenzene-1, 2-diphenol to obtain an intermediate product B; preparing nano zinc oxide, performing surface modification on the nano zinc oxide, and grafting the intermediate product B to obtain an organic-inorganic hybrid curing agent; modifying epoxy resin by using the composite modifier to obtain modified epoxy resin; the modified epoxy resin, the organic-inorganic hybrid curing agent and the accelerant are mixed and stirred, and the weather-resistant transparent adhesive is obtained; the weather-resistant transparent adhesive disclosed by the invention is high in transparency and has excellent mechanical strength, toughness, adhesiveness and weather resistance.

The invention belongs to the field of electrode paste preparation, and provides low-temperature curing silver-coated copper paste for a heterojunction solar cell and a preparation method of the low-temperature curing silver-coated copper paste. Ethyl cellulose is adopted as a matrix material, a stable matrix network is provided for slurry through good cohesiveness and dispersity of ethyl cellulose, and a network structure with a high crosslinking degree is formed by adding modified phenolic resin, organic silicon modified epoxy acrylate and other chemical modification materials into the slurry. The mechanical strength and adhesive force of the slurry are further enhanced, surface modification is carried out on inorganic filler such as silver-coated copper powder and bismuth oxide through a silane coupling agent and a titanate coupling agent, and the interface bonding force between the filler and an organic matrix is enhanced through silicon-oxygen bonds formed on the surface of the filler; by adding the carboxylated polyamide wax and the organic bentonite, the agglomeration tendency of the filler is reduced by utilizing the adsorption and electrostatic repulsion effects of the carboxylated polyamide wax and the organic bentonite on filler particles, and the obtained conductive slurry has the characteristics of excellent conductivity and low-temperature rapid curing.

The invention discloses a high-impermeability curing agent for sandy soil and a preparation method, the high-impermeability curing agent comprises the following components by mass: 30-50 parts of a solid waste-based sulfur aluminum iron series cementing material; 10 to 30 parts of slag powder; 5-30 parts of ordinary Portland cement; 5-20 parts of desulfurized gypsum; and 1-10 parts of silica fume. A curing agent system further strengthens the hydration effect and the cementing performance of the cementing material, and a formed crystal-colloid composite hydration product system contributes to the stable and compact microstructure of the cured sandy soil, so that the impermeability and the mechanical property of the sandy soil can be greatly improved; the comprehensive application of solid waste raw materials such as desulfurized gypsum and mineral powder is realized, and the stacking cost of solid wastes and the influence on the environment are reduced.

The organosilicon-polyurethane foam encapsulating material is composed of a component A and a component B. The component A comprises sucrose initial polyether polyol, sorbitol initial polyether polyol, a water-containing alcohol amine foaming agent, a catalyst and a halogen-free flame retardant, and the component B comprises an NCO-terminated polysiloxane-polyurethane prepolymer, silicone oil and a diluent. Wherein the water-containing alcohol amine foaming agent comprises isopropyl alcohol di-sec-butyl alcohol amine, a mixture of isopropyl alcohol sec-butyl alcohol amine and water. The two-component encapsulating material is used for encapsulating a new energy battery module.

The invention discloses a UV-curable battery core insulating paint and a preparation method thereof, and belongs to the technical field of photocureable paints. The UV-curable battery core insulating paint comprises urethane acrylate, self-made vinyl ether modified urethane acrylate, epoxy acrylate, an acrylate monomer, mercaptan, a coupling agent, color paste, a photoinitiator and a leveling agent. The preparation method comprises the following steps: mixing the polyurethane acrylate, the epoxy acrylate, the acrylate monomer and the mercaptan, stirring at normal temperature for 60-120 minutes, adding the coupling agent, the color paste and the flatting agent, stirring at a high speed for 1-3 hours, adding the photoinitiator in a dark place, and stirring for 20-60 minutes to obtain the UV battery core insulating paint. The diluting capacity and the chemical resistance are considered, and the insufficient performance of matrix resin is supplemented; the combination of a photo-initiation system ensures efficient and rapid curing, adaptability to each light source and effective resistance to oxygen inhibition.

The invention discloses a laminated wood board production process, a laminated wood board and a board cutting machine, and belongs to the technical field of electrician laminated wood boards. The laminated wood board production process comprises the steps that S1, cutting is conducted, specifically, a board is obliquely cut to form veneers; s2, at least two single boards are bonded and spliced to form a laminate; s3, the laminate is placed in a hot press; s4, double-sided gluing is carried out on the laminated plate after hot pressing is completed; s5, the multiple laminates are stacked to form a plate blank, the bonding positions of every two adjacent laminates are arranged in a staggered mode, and the plate blank is placed in a pre-pressing machine to be pre-pressed; and S6, the pre-pressed plate blank is put into a hot press, the hot pressing temperature ranges from 120 DEG C to 140 DEG C, the plate blank is gradually pressed to the preset thickness, after the plate blank is pressed and formed and the temperature rises to the preset temperature, heat preservation forming is carried out, and cooling and discharging are carried out after forming. The production process solves the technical problem that the density of the electrical laminated board produced in a traditional mode is not uniform.

The invention relates to the technical field of aluminum anode machining, and discloses heating equipment for oil well casing aluminum anode machining, which comprises a bottom frame and further comprises two chucks which are mounted on the bottom frame and can rotate, and the two chucks are coaxially arranged and can be adjusted close to or away from each other so as to clamp an aluminum anode tube; the clamp structure is mounted on the opposite surface of the chuck and can center and fix the aluminum anode tube in an inner supporting or outer clamping manner, and a closed space is formed in the aluminum anode tube after the clamp structure is fixed; the heating part extends into the aluminum anode tube and is used for heating air in the aluminum anode tube and heating the aluminum anode tube in a heat conduction and heat convection manner; and the pressure control assembly can be used for pumping out or filling air in the aluminum anode tube. By switching between low voltage and high voltage in the aluminum anode tube, the aluminum anode tube can correspond to heating states in different time periods, so that the quality of a coating in the aluminum anode tube is improved, and the service life of the aluminum anode tube in a severe environment is prolonged.

The invention relates to the field of C09J163 / 00, in particular to a fast-curing epoxy resin adhesive and a preparation method and application thereof. The fast-curing epoxy resin adhesive is composed of a component A and a component B, the component A at least comprises the following preparation raw materials: epoxy resin, a filler A, a diluent, a flexibilizer and a coupling agent A; the component B at least comprises the following preparation raw materials: a curing agent, a filler B, an accelerant and a coupling agent B; the curing agent is a combination of a polythiol curing agent and at least one of a phenolic aldehyde amine curing agent and a polyamide curing agent, by optimizing a formula system, the operable time (pot life), the curing speed and the hardness after curing of the product are effectively balanced, the product is rapidly cured within the proper operable time, the hardness after curing can be guaranteed, and the service life of the product is prolonged. And the actual application requirements of pipeline cold welding emergency repair are met.

The invention discloses UV glue for a holographic IMR diaphragm and the holographic diaphragm prepared from the UV glue. The UV glue is prepared from the following raw materials: vinyl silane, polyester acrylate, aliphatic polyurethane acrylate, trifunctional sulfydryl modified acrylate, a bifunctional active monomer, a trifunctional active monomer and a photoinitiator. The bifunctional active monomer comprises one or more of dipropylene glycol diacrylate, tripropylene glycol diacrylate and triethylene glycol diacrylate. And the trifunctional active monomer is trimethylolpropane triacrylate or pentaerythritol triacrylate. A silicon-oxygen bond in the added vinyl silane has hydrophilicity and can be subjected to a hydrolysis reaction with water molecules in air in a high-temperature and high-humidity environment to generate a Si-OH intermediate, and then the Si-OH intermediate and the silicon-oxygen bond are condensed to form a Si-O-Si bond, so that the compactness of a cross-linked network is further enhanced; and the light-cured coating has excellent water resistance and temperature resistance.

The invention relates to the technical field of optical fibers and adhesives, and particularly discloses a special ultraviolet curing adhesive for a reticular optical fiber ribbon and a preparation method of the special ultraviolet curing adhesive. The adhesive is prepared from a carboxyl-containing sulfydryl tertiary carbonate urethane acrylate prepolymer, a low-viscosity prepolymer, four-functional polyurethane modified organosilicone epoxy acrylate, a high-adhesion acrylate monomer, an acrylamide active monomer, ultraviolet-curable cellulose ester, a photoinitiator, a flatting agent, a photocuring defoaming agent and a polymerization inhibitor. The adhesive is small in viscosity and easy to dispense and spray, adopts UV / UV-LED light to initiate rapid curing and fixing, is good in adhesive force, can effectively improve the grid bonding strength, does not cause additional attenuation to optical fibers, is good in stripping performance, facilitates rapid separation of single optical fibers during construction, is free of VOC emission and low in odor, and meets the latest REACH regulations of European Union. The ultraviolet curing adhesive has the characteristics of small attenuation, good torsion and bending resistance, good stripping property and the like when being used for producing the net-shaped optical fiber ribbon.

The invention relates to the technical field of modified organic silicon coatings, and discloses an acrylic acid modified organic silicon polymer, a solventless coating and a preparation method thereof.The acrylic acid modified organic silicon polymer is prepared from, by mass, 300 parts of polysiloxane, 100 parts of acrylic acid monomers and 1-2 parts of initiator; the polysiloxane is prepared by mixing alpha, omega-hydroxyl-terminated polymethylsiloxane and alpha, omega-hydroxyl-terminated poly (methyl-methyl vinyl) siloxane according to a mass ratio of (8 to 9): (1 to 2). The coating containing the organic silicon polymer is prepared from the following components in parts by mass: 260 parts of acrylic acid modified organic silicon polymer, 40 to 60 parts of alpha, omega-terminated methoxy polydimethylsiloxane, 5 to 10 parts of fumed silica, 15 to 25 parts of talcum powder, 40 parts of pigment paste, 25 to 30 parts of cross-linking agent, 10 to 20 parts of chain extender, 2.5 to 5 parts of A type coupling agent, 2.5 to 5 parts of B type coupling agent and 0.2 to 0.5 part of catalyst. The coating has the advantages of being environmentally friendly, high in strength, low in viscosity and suitable in surface drying time; the viscosity is below 1200 mpa.s, the tensile property of a corresponding coating is not lower than 3.8 MPa, and the surface drying time is within 45 min.

The invention discloses photocuring 3D printing metal slurry and a preparation method thereof.The photocuring 3D printing metal slurry is prepared from, by mass, 30%-77% of organic monomers, 0.001%-20% of dispersing agents, 0.1%-6% of photoinitiators and 10%-67% of composite powder; the composite powder comprises an organic shell and a metal core. The compatibility of an organic matter shell and an organic monomer of the composite powder in the slurry is better, and the chemical interaction force of the surface is larger, so that the dispersion of the composite powder in an organic monomer solution is promoted, and good stability is provided for the photocuring slurry; the refractive index of the organic matter serving as the shell is close to the refractive index of the organic monomer solution, the refractive index difference between the powder and the organic monomer solution is reduced, the curing thickness of the slurry is greatly increased, and the stable photopolymerization slurry with the good curing characteristic is obtained.

The novel geomembrane double-track sweat soldering process comprises the steps that the surface of a reservoir bottom is subjected to leveling and roughening treatment, so that the roughness depth of the surface of the reservoir bottom is 3-5 mm; cutting the geomembrane into proper sizes, numbering and recording the geomembrane piece by piece, and pressing and covering the exposed edge of the geomembrane through a sand bag; the TPO geomembrane, the novel geomembrane and the HDPE geomembrane are in lap joint in sequence in a staggered mode and welded through a double-track automatic hot melting welding machine, and the edges of the adjacent geomembranes are fused; marking the detected defects on the geomembrane, and arranging repair until the retest is qualified; the novel geomembrane comprises a base material layer and an anti-skid layer, the lower surface of the base material layer is coated with the anti-skid layer, and the thickness ratio of the base material layer to the anti-skid layer is 1: (0.1-0.3). The frosted surface of the novel geomembrane can be tightly attached to the rough surface of the reservoir bottom, the frosted surface and the rough surface are not prone to relative sliding, the service life of the geomembrane is prolonged, and the engineering anti-seepage requirement is met.

The invention belongs to the field of radiation curing pressure-sensitive adhesives, and discloses a radiation curing protective film adhesive composition as well as preparation and application thereof. The composition is prepared from the following components in parts by mass: 30 to 70 parts of polyurethane acrylate, 10 to 40 parts of special (methyl) acrylate monomer, 10 to 40 parts of other monofunctional (methyl) acrylate or acrylamide monomer, 0 to 5 parts of bifunctional or polyfunctional (methyl) acrylate monomer, 0 to 5 parts of tackifying resin and 0.5 to 5 parts of photoinitiator. According to the pressure-sensitive adhesive composition for the UV curing protective film adhesive tape, the preparation method is simple, and the comprehensive performance of the composition is improved by optimizing the formula; the protective film adhesive tape prepared on the basis of the pressure-sensitive adhesive composition has higher curing speed and higher peel strength and annular initial adhesion on the premise of keeping excellent exhaust property, and the problem that the properties cannot be considered at the same time in the prior art is solved.

The present invention provides a preparation mold for injection molding automobile lampshades, and relates to the technical field of injection molding of auto parts, comprising: a U-shaped frame, wherein side support frames are fixedly arranged on both sides of the bottom of the U-shaped frame; a conveyor is fixedly arranged below the side support frames on both sides; a conveyor belt is rotatably arranged in the middle of the conveyor to cooperate with a rotating roller; a main mold body is fixedly arranged at the middle front end opening of the U-shaped frame; the present invention is provided with an inclined injection pipe, and a vacuum injection molding method is provided. A vacuum pump extracts air and extracts the air inside the cavity from the inclined injection pipe. After the extraction is completed, the solenoid valve B is closed, the solenoid valve A is opened, and the injection liquid is input into the inclined injection pipe through an injection molding machine, and the injection liquid is quickly and quantitatively filled into the cavity through negative pressure, and then the solenoid valve A is closed, and the electric cylinder is retracted to reset the blocked mold rod, while ensuring that the injection liquid enters the cavity, which can reduce bubbles and speed up the filling, thereby solving the problem that the existing mold is inconvenient for vacuum injection.

The invention provides an ultraviolet light-heat dual-curing electronic adhesive and a preparation method thereof, and belongs to the technical field of organic polymer adhesives. The adhesive is prepared from acrylic acid modified epoxy resin, N, N-dimethyl allyl amine, methacrylic acid, glycidyl methacrylate, ethoxyethyl methacrylate, a free radical photoinitiator and 2-(dodecyl trithiocarbonate)-2-methyl propionic acid. Wherein the methacrylic acid modified glycidyl ether is synthesized from methacrylic acid, bifunctional glycidyl ether, triphenylphosphine and a polymerization inhibitor. A molecular chain of the adhesive contains carboxyl (participating in an epoxy group reaction) and a tertiary amine group (participating in a catalytic thermocuring reaction) required by a subsequent thermocuring reaction, so that small molecular compounds such as a curing agent or a catalyst and the like do not need to be additionally added when the adhesive is used, and pollution to electronic components is reduced from the source.

The invention relates to the technical field of coatings, in particular to an inorganic nano-composite coating material applied to corrosion prevention of a splash zone and a preparation method of the inorganic nano-composite coating material. The inorganic nano composite coating material applied to corrosion prevention of the splash zone comprises a component A and a component B. The preparation method comprises the following steps: step 1, reacting dodecafluoroheptyl methacrylate, vinyl dimethyl phosphate and liquid epoxy resin to obtain modified liquid epoxy resin; 2, after the modified liquid epoxy resin reacts with carboxyl-terminated liquid nitrile rubber, polypropylene glycol diglycidyl ether is added, and a component A is obtained; the aliphatic polyamine reacts with oleic acid to obtain a curing agent, and the amino-modified nano silicon dioxide is mixed with the curing agent to obtain a component B; the prepared coating material is high in adhesive force, high in hydrophobicity, good in impact resistance and good in corrosion resistance.

The invention relates to a novel slow-gelation fast-curing polyurethane material, which is prepared from the following components in parts by mass: 52 to 58 parts of aromatic diisocyanate, 85 to 100 parts of polyether polyol, 0.1 to 0.3 part of composite catalyst and 0.3 to 0.6 part of cross-linking agent, the composite catalyst is formed by compounding a tertiary amine catalyst and an organic tin catalyst according to a mass ratio of 7: 5. According to the invention, the catalyst compounded by the tertiary amine catalyst and the organic tin catalyst in a specific proportion is introduced in the polyurethane synthesis process, so that the reaction has the advantage of controllable catalytic effect. The activity at the early stage of reaction is low, so that the gelation time is effectively prolonged, a mold can be fully filled with feed liquid, the injection molding period of a large and complex panoramic sunroof is well met, and the yield is improved; meanwhile, the curing speed in the later reaction period is high, and the production efficiency of products can be improved.

The present application relates to the technical field of oil casing corrosion protection, and specifically to a marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing and its preparation method. In the present application, the marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing comprises a carbon steel pipe substrate, an inner anti-corrosion coating and an outer anti-corrosion coating, wherein the inner and outer anti-corrosion coatings both comprise a nickel-tungsten coating, an intermediate layer and a hybrid layer. The preparation method of the marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing in the present application comprises the following steps: first, the carbon steel pipe substrate is pre-treated by cleaning and rust removal, and then the nickel-tungsten coating is coated; then the intermediate layer coating is uniformly coated on the surface of the nickel-tungsten coating, and finally the hybrid layer coating is uniformly coated on the surface of the intermediate layer. The marine anti-hydrogen sulfide and anti-carbon dioxide nickel-tungsten coating anti-corrosion oil casing prepared by the above method has excellent properties such as temperature resistance, wear resistance, impact resistance, corrosion resistance and self-cleaning.

The invention provides a latent curing agent based on a dynamic crosslinking-controllable dissolution mechanism. The latent curing agent at least comprises a reaction product of a component with a maleimide structure, a component with a furan ring structure and an amine component with at least two amino groups or imino groups, and the reaction product has a dynamic cross-linked network structure containing a Diels-Alder addition structure. Compared with the prior art, the latent curing agent provided by the invention can be used for realizing long-term storage and medium and low temperature curing of a single-component thermosetting material, and especially when the latent curing agent is applied to an epoxy-anhydride system, an epoxy-phenolic aldehyde system and an epoxy-dicyandiamide system, not only is the curing temperature reduced, but also the storage life is longer, and the curing effect is better. Meanwhile, the preparation process of the latent curing agent is simple, easy and convenient to operate, good in controllability, easy to implement and suitable for large-scale industrial production.

The high-temperature-resistant and high-humidity-resistant acrylic foam tape comprises a release layer, a first acrylic pressure-sensitive adhesive layer, an acrylic foam layer and a second acrylic pressure-sensitive adhesive layer which are arranged in sequence, wherein the acrylic foam layer comprises the following components in parts by mass: 80-100 parts of a first acrylic prepolymer; 5 to 10 parts of a first functional monomer; 0.1 part to 0.4 part of a second functional monomer; 3 to 6 parts of hollow glass beads; 1 to 2 parts of fumed silica; 0.05 part to 0.2 part of a first photoinitiator; 0.05 to 0.2 part of a second photoinitiator; 0.1 part to 0.5 part of color paste; and 0.1 to 0.5 part of a first silane coupling agent. According to the high-temperature-resistant and high-humidity-resistant acrylic foam adhesive tape, the peeling strength can be improved, and the high temperature resistance and the humidity resistance of the acrylic foam layer can be enhanced.

The invention discloses a mold for core making equipment and a curing method and application of the mold, and belongs to the technical field of core making machine molds. The curing method comprises the following steps that sand shooting forming is conducted, specifically, in the mold closing state, molding sand is shot into a mold cavity from a sand shooting nozzle in a mold body to be used for forming a sand core; and heating and curing are conducted, specifically, a curing medium heated to be in a gaseous state is injected into the cavity through a plurality of air inlet channels, the curing medium makes contact with the peripheral side of the sand core and then is diffused and permeated, the sand core is cured from the periphery of the sand core, and the air inlet ends of the air inlet channels are separated from the sand shooting nozzles. According to the invention, molding sand injected into the mold can be quickly and uniformly attached to the surface of the loose core, and each part of the sand core can be quickly and uniformly cured in a short time, so that the curing speed of large pieces and high pieces is greatly increased, the curing effect and efficiency are improved, the compactness of the sand core can be improved through vibration, and the production efficiency is improved. And the product quality is further improved.

The invention relates to the technical field of plastic forming, and particularly discloses a forming mold for processing an ultrahigh polyethylene wear-resistant pipe based on a pipeline compensator lining, which comprises a base, a lower mold and an upper mold, and further comprises an inner core which is in the shape of a hollow cylinder and is arranged in a mold cavity, and the end cover is sleeved on the outer wall of the inner core. The upper mold is moved upwards, then the lifting seat is moved upwards, the inner core drives the lining to ascend, the bottom of the cured lining is separated from the lower mold, and finally the drawing rod, the inner core and the end cover are driven to move outwards through the second telescopic part and the third telescopic part to take out the lining. And finally, the lining is pulled outwards while rotating from the outer wall of the inner core to complete demolding, compared with a demolding mode in the prior art, the demolding mode is faster, and the lining is not prone to deformation during demolding.

The invention relates to the technical field of composite material bonding, in particular to a large-thickness composite material multi-layer bonding tool and process, the large-thickness composite material multi-layer bonding tool is used for assisting bonding of composite material plates, the bonding tool comprises an upper pressing plate and a lower bottom plate which are arranged in parallel, the upper pressing plate and the lower bottom plate are connected through a stand column, and the upper pressing plate is connected with a hydraulic device and used for applying pressure; a first heating plate is arranged on the face, away from the hydraulic device, of the upper pressing plate, and a second heating plate is arranged on the face, away from the hydraulic device, of the lower bottom plate. According to the large-thickness composite material multi-layer bonding tool and process, the bonding face with the uniform roughness is manufactured through treatment of the demolding cloth, the thickness of the adhesive layer is controlled through the glass beads, the upper pressing plate and the lower pressing plate of the tool are provided with the heating plates, the bonding face is rapidly heated and cured, the heating time of a large-thickness product is shortened, and the production efficiency is improved. The problems that the composite material in the middle of the structure is heated unevenly and the curing degree is insufficient are solved, and large-thickness composite material products can be rapidly and effectively manufactured.

The utility model discloses adhesive bonding strength detection equipment which comprises a base, a first mounting plate is fixedly mounted at one end of the base, a first hydraulic cylinder is fixedly mounted at the upper part of the first mounting plate, and a first tension sensor is fixedly connected to the telescopic end of the first hydraulic cylinder; one end of the first tension sensor is fixedly connected with a first test plate; a second mounting plate is fixedly mounted at the other end of the base, a second hydraulic cylinder is fixedly connected to one side of the second mounting plate, a second tension sensor is fixedly connected to the telescopic end of the second hydraulic cylinder, and a second test plate is fixedly connected to one end of the second tension sensor; a test board is fixedly mounted at the top of the base; a temperature control component is mounted on the test board; according to the adhesive strength detection device, the vertical and transverse adhesive strength of the adhesive can be detected, and the surface of the test board can be cooled through the temperature control component before the adhesive strength is detected, so that the curing speed of the adhesive is accelerated, and the detection efficiency of the adhesive is improved.

The invention provides a wood lacquer coating composition, and relates to the technical field of wood lacquer. The wood lacquer coating composition consists of a component A and a component B according to a molar equivalence ratio of 1: (1-1.1), the component A comprises the following raw material components: composite aspartic ester resin consisting of first aspartic ester resin and second aspartic ester resin; the weight of the second aspartic ester resin accounts for 10-40% of the weight of the composite aspartic ester resin; the first aspartic acid ester resin is bifunctional aspartic acid ester, the second aspartic acid ester resin is monofunctional aspartic acid ester, and the first aspartic acid ester resin and the second aspartic acid ester resin are both low in viscosity; and the component B is an isocyanate curing agent. A coating formed by curing the wood lacquer coating composition has good water resistance, heat resistance, aging resistance, smudginess resistance, hand feeling and the like.

The invention discloses composite board gluing and pressing equipment, and relates to the technical field of composite board processing, the composite board gluing and pressing equipment comprises a conveying frame body, a baffle plate is fixedly mounted at the top of the conveying frame body, a conveying device is fixedly mounted at the top of the conveying frame body, and a gluing device is fixedly mounted at the top of the conveying frame body; the conveying device is fixedly connected to the top of the conveying frame body, the gluing device is arranged over the conveying device, a guide mechanism is fixedly connected to the discharging end of the conveying frame body, a pushing device is fixedly installed at the top of the conveying frame body and arranged over the guide mechanism, and a pressing device is fixedly installed at one end of the conveying frame body; according to the full-automatic gluing press-fit machine, the gluing process and the press-fit process are integrated together, continuous production is achieved, and the production efficiency and the product quality are improved.