3178 results about "Delamination" patented technology

The invention discloses a cement-based aerogel heat preservation and heat insulation coating material for concrete and a spraying construction process of the cement-based aerogel heat preservation and heat insulation coating material, and belongs to the technical field of concrete materials. The coating material is prepared from powder, composite emulsion and water, and the powder is prepared by mixing superfine sand, cement, modified silicon dioxide-carbon nanotube composite aerogel powder, hollow glass beads, nanofibers, graphene nanosheets, an ultraviolet light absorber, a water reducing agent and a defoaming agent. The composite emulsion is composed of an acrylate copolymer emulsion, a polyvinyl acetate-ethylene emulsion, a temperature-sensitive polymer emulsion and a coalescing agent. Based on the multi-stage pore network and multi-component emulsion optimization design and multi-component synergistic effect, the material has good fluidity after being mixed, and has low heat conductivity coefficient, high strength and high toughness after being hardened; the construction technology of high-pressure water flushing and layered spraying is provided, and the method has the advantages of being efficient in construction, stable in quality and the like and can be applied to heat preservation and heat insulation of a concrete structure in a severe environment.

The invention belongs to the technical field of film quality analysis and evaluation, and particularly relates to a flexible circuit board film pressing quality detection and analysis method and system. The method comprises the steps of generating a self-adaptive scanning path based on a design file and surface deformation data; performing multi-modal data acquisition and fusion along a path through optical surface scanning, ultrasonic tomography and an optical coherence tomography imaging assembly; potential defects are positioned, and size, shape, position and defect type probability values are quantized; judging the authenticity of the defect by adopting a three-stage mechanism of cross-modal probability comparison, physical characteristic logic verification and multi-frame time sequence verification; and performing weighted scoring on the real defect matching acceptance standard table, and performing disqualification marking or outputting a process optimization suggestion to the pressing equipment according to a scoring result. According to the invention, the imaging limitation of the transparent coating layer is broken through, the internal interface layering and the precise detection of the microbubbles are realized, and the closed-loop control from detection to production adjustment is formed.

The invention discloses a method for preparing a copper-chromium-niobium alloy high-thermal-conductivity part based on green laser SLM, and relates to the technical field of copper-chromium-niobium alloys. Comprising the following steps that copper-chromium-niobium alloy powder is pretreated; the pretreated copper-chromium-niobium alloy powder is laid on a base plate, green laser is adopted for selective laser melting printing, at least two layers of printing parameters with different energy densities are set in a layered energy gradient control mode, layered printing is carried out, a pore structure with the porosity in continuous gradient distribution is formed, and a pre-machined part is obtained; wherein the wavelength of the green laser is 500 nm to 550 nm, and the spot diameter of the green laser is 15 [mu] m to 30 [mu] m; and the pre-machined part is subjected to heat treatment, and the high-heat-conduction part is obtained. The copper-chromium-niobium alloy part is prepared through the green laser SLM technology, the layered energy density gradient control technology is adopted, and the problems that in copper-based alloy additive manufacturing, the reflectivity is high, the structure is limited, and the performance is insufficient are systematically solved.

The invention belongs to the technical field of wafer processing, and discloses a multi-section high-flatness wafer cutting method which comprises the following steps: S1, wafer pretreatment and stress buffer layer preparation; s2, performing layered rough cutting by using a diamond blade; s3, plasma fine cutting and interface repairing; s4, performing multi-layer cooling and surface polishing; and S5, surface quality closed-loop detection is carried out. According to the method, copper layer residues and resin carbonization defects are synchronously eliminated. Cryogenic treatment induces lattice reconstruction through ultrafast phase change and blocks a chain reaction of dislocation defects, so that the intrinsic mechanical strength of the material is recovered, and a chemical mechanical polishing system activates the self-repairing characteristic of the material while removing a sub-surface damaged layer through the synergistic effect of abrasive chemical activity and mechanical shearing force, so that an atomic-scale smooth interface is formed, and the self-repairing performance of the material is improved. A closed-loop detection system depends on multi-dimensional data fusion and ion beam fixed-point repair, accurate positioning and performance recovery of cross-scale defects are achieved, and the electrical integrity of a chip functional area is ensured.

A method of repairing a thermoplastic composite material is disclosed herein. The method includes placing the thermoplastic composite material on a supporting anvil, placing an energy transmission material on top of the thermoplastic composite material, and applying an ultrasonic welder to the thermoplastic composite material to consolidate and repair the thermoplastic composite material. Another method of repairing a thermoplastic composite material is disclosed herein. The method includes placing an energy transmission material on a supporting anvil, placing the thermoplastic composite material on top of the energy transmission material, and applying an ultrasonic welder to the energy transmission material to consolidate and repair the thermoplastic composite material.

The invention relates to the technical field of packaging films, and particularly discloses a heat-resistant polyethylene composite packaging film and a preparation method thereof.The polyethylene composite packaging film comprises an inner layer, a middle layer and an outer layer, the inner layer is prepared from, by mass, 100 parts of linear low-density polyethylene, 28-32 parts of polypropylene and 8-10 parts of hydrotalcite modified blending materials, the middle layer comprises the following raw materials in parts by weight: 100 parts of low-density polyethylene, 40-60 parts of linear low-density polyethylene, 3-5 parts of a coupling agent and 0.5-1 part of an antioxidant, the outer layer comprises the following raw materials in parts by weight: 100 parts of modified PA6, 20-30 parts of metallocene polyethylene and 5-8 parts of a compatilizer, functional gradient distribution is realized by adopting layered extrusion of three-layer co-extrusion, and PA6 and polypropylene have a synergistic effect, so that the composite film has excellent heat resistance, and the service life of the composite film is prolonged. The hydrotalcite and the graphene oxide have a synergistic effect, the layered structure effectively obstructs oxygen and water vapor, and the obtained polyethylene composite packaging film is good in barrier property and has excellent mechanical property and heat resistance.

The invention discloses a method for manufacturing a rigid-flex printed circuit board with a surface flexible layer, which comprises the following steps of: taking a double-sided flexible copper-clad plate, manufacturing a through hole and electroplating, and then manufacturing a circuit pattern to form a pattern plate; manufacturing a first windowing covering film for windowing corresponding to the golden finger area and covering the through hole and a second windowing covering film for windowing corresponding to the through hole and the ineffective area, respectively attaching the first windowing covering film and the second windowing covering film to the two surfaces of the pattern board, and then carrying out electrometallization to form a flexible core board; taking a rigid copper-clad plate, windowing the rigid copper-clad plate corresponding to the flexible layered area, and then manufacturing a circuit pattern to form a rigid core plate; stacking and laminating the structures to form a laminated plate; drilling and electroplating are carried out on the laminated plate, then laser ablation is carried out on a through hole area, and the rigid-flexible combined plate is formed through post-process processing; by forming a new processing flow, the defects of low adaptability, processing precision and reliability of a traditional rigid-flex printed circuit board manufacturing method are systematically solved, and high-precision processing of the rigid-flex printed circuit board with high integration level is formed.

The invention discloses a preparation method of a nickel-based tungsten carbide laser cladding wear-resistant gradient coating, which comprises the following steps: step 1, preparing mixed powder of a transition layer, a functional layer and a repair layer; step 2, pretreating a matrix: removing oxide skin on the surface of the matrix, polishing to be smooth, and preheating the matrix to 350-500 DEG C; step 3, sequentially preparing a first functional layer, a transition layer, a second functional layer and a repair layer by adopting a laser cladding process; and 4, coating post-treatment is conducted, specifically, the surface of the repairing layer is polished to the specified thickness, and the defect-free wear-resistant gradient coating is formed. Through gradient component layered design, the functional layer adopts high tungsten carbide content to maximize wear resistance, and the transition layer relieves thermal expansion difference between the coating and a matrix, reduces interface stress and reduces crack initiation; according to the repairing layer, micro-cracks and air holes generated in the cladding process are filled through low-hardness nickel-based components, and the compactness and surface integrity of the coating are remarkably improved.

The invention discloses a preparation method of a 3D printing multi-scale layered rigid-flexible impact-resistant composite material. The method comprises the following steps: designing a PLA skeleton with a multi-scale layered structure, and carrying out slicing processing to obtain an STL format file; the preparation method comprises the following steps: preparing a PLA framework through 3D printing, injecting a silicon elastomer serving as a soft material and a binder into a multi-stage layered structure of the framework, and curing to obtain the composite material. The composite material has a layered structure with three scales, the structure is realized by designing a patterned microstructure for each layer to induce a 3D printing path to stack layer by layer, and complex programming is not needed; the silicic acid gel in the gaps of each stage of layered structure is integrally formed, the composite material has the rigid-flexible coupling property, the hard PLA framework enables the composite material to have good mechanical properties, and the soft silicic acid gel provides larger deformation in the impact resisting process to achieve energy dissipation; tooth-shaped protruding interface structures which are embedded in a staggered mode are designed on the contact faces between the macroscopic layers, and the deflection direction of cracks is induced.

The invention discloses a water-based multi-layer degradable self-polishing ship antifouling coating system and a preparation method thereof, and belongs to the field of marine anticorrosion and antifouling materials. The system is composed of a zinc-rich primer, a modified epoxy intermediate paint and a functionalized finish paint. The finish paint takes polyhydroxyalkanoate as a matrix, and integrates a self-stratification modifier capable of forming a silicon-rich top layer during curing and a latent dual-curing system capable of realizing normal-temperature curing through a synergistic effect. According to the present invention, the mixing mechanism of dynamic self-polishing and static fouling release is adopted, and the innovative curing technology is combined, such that the long working life, the excellent mechanical property and the long-acting antifouling ability are achieved. The drawing adhesive force of the system is not lower than 7.9 MPa, and the environment-friendly requirements that the content of volatile organic compounds is smaller than or equal to 50 g / L, and the content of free diisocyanate monomers is smaller than or equal to 0.1 wt% are met.

The invention relates to a modified chrome corundum ramming material and a preparation and construction process thereof, and belongs to the technical field of chrome corundum ramming materials. The ramming material comprises a material A, a material B and a material C, wherein the material A comprises chrome corundum aggregate, titanium dioxide coated aluminum oxide microspheres, calcium sulfide dehydrate and silicon carbide porous microspheres; the material B comprises chromium oxide-zirconium oxide composite nano powder, sodium thiosulfate pentahydrate, tricalcium phosphate and hexagonal boron nitride flaky crystals; and the material C comprises an aluminum dihydrogen phosphate-magnesium hydroxide compound, a calcium fluoride-aluminum oxide co-melt and a silane coupling agent. The preparation process comprises the steps of pretreatment of all the components, preparation of composite powder and layered preparation. The construction process comprises the steps of pretreatment, wet-process mixing, layered ramming, negative-pressure permeation, medium-temperature reaction, spraying curing, integral firing and the like. Generation of hexavalent chromium can be effectively inhibited, the thermal shock resistance, the mechanical strength and the heat-conducting property of the material are remarkably improved, and the material has the advantages of being good in environment friendliness, long in service life, excellent in construction performance and the like.

The invention belongs to the technical field of electrode printing, and discloses a full-opening steel plate for printing and printing equipment. The full-opening steel plate for printing comprises a first metal layer and a second metal framework layer, and the first metal layer is provided with a printing opening used for printing a whole fine grid at a time. The second metal framework layer is stacked on one side of the first metal layer, the side, away from the first metal layer, of the second metal framework layer is an S face, the second metal framework layer is provided with a plurality of slurry penetrating channels penetrating from the S face to the printing opening at intervals, and connecting bridges and slurry penetrating holes are alternately arranged between every two adjacent slurry penetrating channels. A slurry storage cavity is formed in the bottom of the second metal framework layer. According to the full-opening steel plate for printing, during printing, slurry is stored through the slurry penetrating holes and the slurry storage cavities which are vertically arranged in a layered mode, so that slurry supply of the printing openings is guaranteed, gaps caused by insufficient supply of slurry at the positions, corresponding to the connecting bridges, of the fine grids are avoided, meanwhile, the printing height is effectively controlled, and the printing quality is improved. And the printing quality and the printing cost control of the battery piece are improved.

The invention provides a composite material additive manufacturing method and device based on size error compensation, and the method comprises the steps: selecting the number, type and combination mode of materials needed by each layered structure strip according to the material performance of a prepared component and the local thermodynamic performance and mechanical performance of the component; all strips of the single layered structure are laid at the same time or in each round, so that the single layered structure is formed; each strip is made of a single type of material or is formed by laminating and compounding a plurality of single type of materials, and the self-adaptive laying method is executed according to data of various sensors in the laying process and data of a detection mechanism after laying; and the steps are repeated, and the strips are laid layer by layer according to the layer sequence of the layered structure till the component is formed. According to the method, through effective combination of additive manufacturing modes of multiple fiber composite materials, multiple materials are combined and then laid, and it is ensured that the distribution of fibers and the infiltration effect of a matrix reach the ideal state.

The invention provides a manufacturing process of high-heat-insulation ray-proof antibacterial glass. The high-heat-insulation ray-proof antibacterial glass comprises outer-layer glass, a middle functional layer, inner-layer glass and an extensible layer, the manufacturing process comprises a PVB adhesive film preparation process and a laminated glass whole process, wherein the PVB adhesive film preparation process specifically comprises the steps of raw material mixing, melt extrusion, tape casting and coiling; the whole process of the laminated glass comprises the steps of glass pretreatment, interlayer assembly, high-temperature and high-pressure forming and post-treatment and quality inspection. According to the design scheme of the multi-film composite laminated glass, based on the structural characteristics of the laminated glass, a layered ray-blocking customized glass scheme is provided in combination with the combination of heat-insulating PVB films and other films with different functions, and the scheme is suitable for scenes such as sunlight rooms, agricultural planting or market curtain walls and the like.

The invention discloses a vacuum-assisted pultrusion preforming device for a composite material. The vacuum-assisted pultrusion preforming device comprises a yarn threading plate, a gum dipping tank, a gum extruding roller and a vacuum-assisted preforming mold which are sequentially arranged in the pultrusion direction, wherein fiber bundles penetrate through the yarn threading plate in a layered mode, the gum dipping tank is used for containing resin, and the gum extruding roller is used for extruding redundant resin. The vacuum auxiliary preforming mold is provided with a preforming mold cavity, a vacuum cavity is formed in one section of the preforming mold cavity of the vacuum auxiliary preforming mold, an air exhaust hole is formed in the upper portion of the vacuum cavity, and a semi-permeable membrane allowing gas to pass through but blocking resin to pass through is arranged at the air exhaust hole. And the air exhaust hole is externally connected with a vacuumizing device. The vacuum-assisted pultrusion preforming device can effectively discharge microbubbles in resin and fiber bundles, effectively control uniform distribution of the content of the resin and remarkably promote full infiltration of high-viscosity resin to fibers.

The invention discloses a photocuring 3D printing mechanism method for multi-material cooperative spraying, and relates to the field of cooperative control, and the photocuring 3D printing mechanism method comprises the following steps: layering a model, generating a material distribution map, and labeling a functional area and a transition area; a multi-nozzle array is used for accurately positioning and spraying according to the atlas; a gradual change path is planned in the transition area, and gradient change of material components is achieved through cooperative spraying; a partition curing strategy is adopted, ultraviolet light full curing and visible light semi-curing are adopted, and leveling is promoted in combination with micro-vibration; spraying a penetrating agent between layers to form a mechanical interlocking enhanced interface; based on visual online defect detection, printing parameters are fed back and adjusted in real time through a CNN model. The device and the method have the advantages that accurate mixing of multiple materials is realized through cooperative spraying of the multiple piezoelectric sprayers and gradual change path planning, and real-time defect detection and correction can be realized by matching with differentiated photocuring, high-frequency micro-vibration leveling and interlayer penetrating agent interlocking, so that high-precision multi-material functional component forming is efficiently completed.

The invention provides a compressible high-thermal-conductivity graphene thermal interface material and a preparation method thereof. The preparation method comprises the following steps: preparing a graphene oxide film with low structural unit thickness by adopting a centrifugal spin-coating film casting method, performing limited thermal expansion delamination, compounding with polysiloxane, and performing directional lamination to obtain a highly-oriented graphene / organic silicon composite material. And applying shear stress after pressurizing and densifying along the normal direction of the graphene sheet layer, so that the graphene structure unit forms a continuous buckling structure which is high in density and easy to compress. The densification process promotes the interaction among delamination structure units, broadens a phonon transmission channel, inhibits phonon-boundary scattering, enhances the comprehensive heat-conducting property, plays a role in promoting stress transmission among graphene, and ensures the formation of a continuous buckling structure under shear stress. A continuous buckling structure and a relatively low structure unit thickness (llt in the graphene structure unit; and the compression modulus of the densified vertical graphene array is jointly reduced by means of high density, high thermal conductivity and high compressibility of an existing thermal interface material, and the method can be applied to the fields of new energy automobiles, high-power chips, aerospace electronic equipment and the like, and the problem that high density, high thermal conductivity and high compressibility of the existing thermal interface material are difficult to consider at the same time is solved.

The invention discloses a production process of tempered laminated glass, which belongs to the technical field of tempered glass, and comprises the following steps: strictly screening raw sheets, carrying out three-zone gradient tempering, namely, mutually combining 680-700 DEG C temperature zone temperature control and 8-12kPa gradient wind pressure quenching, and precisely compounding by using a PVB interlayer to obtain the tempered laminated glass. 23 DEG C / 30% RH pre-balancing, 0.5 mm vacuum positioning and 120-140 DEG C rolling initial pressing are combined, and then high-pressure kettle staged curing, namely, the process of heat preservation for 120 minutes at 1.2 MPa / 135 DEG C and the process of gradient cooling at the temperature smaller than or equal to 15 DEG C / h are combined, so that the finally prepared tempered glass product has high optical performance, namely distortion smaller than or equal to 0.1 mm / mm, high impact resistance, namely no penetration in 1m steel ball falling and excellent weather resistance; degumming is avoided in the environment of 85 DEG C / 85% RH / 500 h, and accurate control over the whole process from materials to finished products is achieved. Therefore, the production process of the tempered laminated glass solves the technical problem of how to improve the production efficiency of the tempered laminated glass.

The utility model discloses a melt blending extrusion device which comprises a mixing tank and an extrusion assembly, and the extrusion assembly is arranged below the mixing tank; a stirring shaft is arranged in the mixing tank, the first stirring spiral blade is arranged on the stirring shaft, a plurality of rotating shafts are movably connected with the lower part of the stirring shaft in the mixing tank at equal angles, and second stirring spiral blades are arranged on the rotating shafts. In conclusion, the material mixing device overcomes the defects in the prior art, is reasonable in design, can push materials in the middle of the material mixing tank downwards and diffuse the materials outwards, avoids precipitation or layering of the materials in the mixing process, improves the mixing effect, and has high social use value and application prospects.

The emulsion paint spraying robot comprises a machine base, controllers are connected to the two sides of the machine base correspondingly, a stirring mechanism used for stirring and mixing emulsion paint, an adjusting mechanism used for adjusting the spraying position height and a changing mechanism used for changing the spraying angle are arranged at the top of the machine base, and the bottom of the adjusting mechanism is installed on the machine base; the changing mechanism is installed on the adjusting mechanism, the spraying head is installed on the changing mechanism and connected with the stirring mechanism through a pipeline, and collision buffering mechanisms are arranged on the two sides, provided with the controller, of the machine base. Latex paint can be continuously stirred in the spraying process through the stirring mechanism, pigment precipitation or layering is prevented, the consistency of the spraying effect is guaranteed, the adjusting mechanism can flexibly adjust the position of the spraying head according to the height of the wall surface, dependence on a scaffold or a ladder is reduced, the changing mechanism supports multi-angle rotation of the spraying head, uniform coating coverage is guaranteed, and the spraying efficiency is improved. Spraying leakage or uneven spraying thickness is avoided, and the construction precision is improved.

The invention discloses an automobile part aluminum plating tool with overturning and clamping functions, and relates to the technical field of film plating tools, the automobile part aluminum plating tool comprises a driving assembly, a fixed outer frame and a plurality of overturning and clamping assemblies, and each overturning and clamping assembly comprises a deflection connecting rod, a telescopic rod, a workpiece chuck and a guide sleeve rod; when the driving assembly ascends and descends, the deflection connecting rod is driven by the first hinge shaft to deflect, the telescopic rod is forced to slide in the radial direction of the guide sleeve rod, and the workpiece chuck generates clamping / releasing displacement. An inner transmission ring is arranged on an inner ring of the fixed outer frame, a transmission wheel is installed at the lower end of the guide sleeve rod, and when the driving disc rotates, a planetary gear train enabling the overturning clamping assembly to rotate is formed through transmission of the inner transmission ring and the transmission wheel. A multi-drive structure is replaced with mechanical layout, modular layered layout improves efficiency, structural innovation guarantees stability, integration of self-adaptive clamping, composite motion and batch processing is achieved in the field of vacuum coating, and the bottleneck that a traditional tool is insufficient in flexibility and poor in uniformity is broken through.

The invention discloses a composite material T-shaped beam forming method in the technical field of aviation, a forming die, a laying die and a bottom face forming die which are arranged in a split mode and can be combined are adopted, forming is conducted through a secondary hot-pressing curing process, and the method comprises the following steps that S1, preforming and R corner prefabricating are conducted, the independently-prefabricated prepreg core material is positioned in a T-shaped beam R-angle area formed after the prepreg core material and the T-shaped beam R-angle area are oppositely combined; and S2, first-time mold closing and pre-curing are carried out, specifically, the laying mold and the forming mold are oppositely closed, lateral auxiliary positioning is carried out through the bottom face forming mold, locking and fixing are carried out through a positioning pin and a clamping piece, and first-time hot-pressing curing is carried out on a combined body obtained after mold closing. According to the method, the independently prefabricated core material which is subjected to heat-sealing, pressing and pre-curing is filled in the R-angle area, and a secondary hot-pressing process of pre-curing and final curing is matched, so that sufficient pressure transmission and tight laying of the R-angle area are ensured, the defects of layering, bridging and the like are effectively avoided, and the percent of pass of nondestructive testing of products is remarkably improved.

The invention discloses a synchronous temperature control method for co-extrusion molding of a multilayer polymer film, and relates to the technical field of high polymer material processing, and the method comprises the following steps: setting a target temperature interval of each polymer layer of the multilayer polymer film, and according to the melting characteristics, heat sensitivity and interface bonding requirements of each layer of material, setting a target temperature interval of each polymer layer of the multilayer polymer film; respectively determining an extrusion temperature set value and an allowable fluctuation range; through layered independent temperature control and preheating matching, thermal behavior synchronization of multiple polymer melts is achieved, and the interface bonding stability is improved; through a die head heat insulation and buffer structure, interlayer heat interference is effectively shielded, and the integrity of a functional layer is guaranteed; through the intelligent closed-loop temperature control system, the state of each temperature control area is predicted and adjusted in real time, and self-adaptive optimization of thermal control is achieved. And the co-extrusion quality, the consistency and the production intelligent level of the multi-layer film are integrally improved.

A 3D printing method, comprising the following steps: preparing a raw-material powder, and loading a substrate into a selective laser melting device; performing slicing and layering processing on a three-dimensional model, and importing data into a 3D printer; selecting a multi-laser real-time heat treatment scanning policy, and selecting appropriate printing parameters; spreading the raw-material powder evenly on the substrate, a first laser system starting to scan and melt the raw-material powder, and at the same time, a subsequent laser system starting scanning following the first laser system, so as to form a melted layer, until the scanning of the layer is finished; controlling the substrate to descend to a set height, spreading the raw-material powder on the melted layer again, and rescanning the spread raw material powder; and repeating the previous step until printing is completed. By means of the method, the residual stress can be reduced more efficiently, the requirement for the preheating temperature of a substrate is low, and the problems of the surface roughness being high, the printing accuracy being low, etc. are avoided; and it is not necessary to adjust the chemical composition of a printing material in order to reduce its cracking susceptibility. The present invention further relates to a printed product and a printing apparatus.

The invention relates to split type concrete stirring and CO2 mineralization equipment which comprises an upper layer module used for stirring concrete raw materials and a lower layer module arranged below the upper layer module and used for performing mineralization reaction, and the upper layer module comprises a first stirring barrel internally provided with a positive spiral stirrer. The lower-layer module comprises a second stirring barrel internally provided with an inverted spiral stirrer, and a gas outlet is formed in the middle of the inverted spiral stirrer so that CO2 can enter the second stirring barrel conveniently; a heating assembly, a temperature detection part, a CO2 concentration detection part and a pressure detection part are further arranged in the second stirring barrel. According to the invention, the design of matching of the positive spiral stirrer and the negative spiral stirrer is adopted, so that concrete raw materials are fully mixed within a short time, and material layering and uneven particle distribution are avoided in the stirring process; meanwhile, COgas is introduced into the second stirring barrel through the reverse spiral stirrer, so that the gas is in full contact with the slurry, and the optimization of mineralization reaction conditions is realized.

The invention discloses a flexible inflatable material and a preparation method thereof, and belongs to the field of flexible inflatable materials. According to the method, by analyzing a model, forming a wire drawing hole in a removable supporting mold and combining a dotted single-knot type, through end point type and row-column sectional type specific wire drawing process, the arrangement of interval wires of the flexible inflatable material is comprehensively adjustable in position, length and pre-tightening force, and the structural adaptability and stability are improved; through in-situ glue brushing, film forming and sealing, the flexible inflatable material is uniform in sealing and stacking, not prone to leakage, not prone to wrinkling, not prone to secondary deformation and not prone to layering. The method can be used for preparing the high-pressure and high-shape-preserving special-shaped flexible inflatable material, and the shape preserving precision of the flexible inflatable material in a complex mechanical environment is improved.

The invention discloses a method for comprehensively evaluating the curing degree of a thermosetting composite material based on a differential scanning calorimetry, which comprises the following steps of: carrying out layered sampling according to the layering design of a to-be-detected thermosetting composite material workpiece, and taking a prepreg of the to-be-detected thermosetting composite material workpiece as a reference substance; all samples are crushed and fully mixed for differential scanning calorimetry, and the curing degree of the to-be-detected thermosetting composite material part is comprehensively evaluated. According to the method, the problem of sample heterogeneity existing in detection of the curing degree of the thermosetting composite material by a differential scanning calorimetry method is solved, and a rapid and accurate detection method is provided for detection of the curing degree of the thermosetting composite material. Meanwhile, layered sampling is carried out on the formed thermosetting composite material, the temperature program of the prepreg takes-50 DEG C as the initial temperature, the heat flow difference between the thermosetting composite material and the reference substance is fully measured, the detection accuracy is ensured, and the method has good application value and prospects.

The utility model relates to a glue supplying and discharging structure of a coating machine, which comprises a glue supplying bin body structure and a glue coating roller arranged at the outlet end of the glue supplying bin body structure, the glue supplying bin body structure comprises an upper glue passing bin body and a conical bin integrally designed with the upper glue passing bin body, and a glue passing connecting seat structure connected with the upper part of the upper glue passing bin body, and the glue outlet position of the gluing connecting seat structure is perpendicular to the layered material collecting channel structure arranged on the inner wall of the upper gluing bin body. The glue supplying and discharging structure facilitates uniform and smooth glue discharging and achieves the uniform and uniform glue coating level, so that discharging is more uniform, the product quality is improved, other equipment can continuously work by using the same parameters, the production process is simplified, the production efficiency is improved, and meanwhile, the glue supplying and discharging structure is convenient to assemble and connect and easy to clean and maintain.

The invention provides a multi-layer plating control method for a steel-wood combined template, and relates to the technical field of plating process optimization, and the method comprises the following steps: calculating a secondary thickness difference between a secondary plating standard thickness and a maximum thickness intermediate value, carrying out secondary plating scheme control analysis by taking the secondary thickness difference as a plating target, and outputting optimized secondary plating parameters; (N-1) deviation areas are determined, secondary local plating scheme control analysis is conducted according to the (N-1) local thickness differences, and (N-1) optimized secondary local plating parameters are determined; and secondary overall plating is conducted on the target steel frame according to the optimized secondary local plating parameters, and after overall plating is completed, layered plating is conducted on the N-1 deviation areas according to the N-1 optimized secondary local plating parameters. By means of the method, the technical problems that in a traditional method, control parameters cannot be precisely connected, thickness fluctuation is likely to occur, and the overall plating layer quality is affected can be solved, the plating layer thickness fluctuation problem can be eliminated, the overall plating layer quality is improved, and the effect of high corrosion resistance and wear resistance is achieved.

The invention discloses a polyetherketoneketone high-temperature-resistant wear-resistant non-stick coating and a preparation method thereof. The coating is prepared from the following components in parts by mass: 13 to 30 parts of a resin matrix group (containing 12 to 25 parts of titanium modified polyether ketone ketone resin, 1 to 5 parts of fluorine-free viscous resin and 0.65 to 6 parts of aluminum oxide), 0.5 to 3 parts of a nano reinforced group (containing 0.5 to 3 parts of KH-550 modified nano titanium dioxide, 0.025 to 0.6 part of cerium dioxide and 0.5 to 3 parts of boron nitride) and 62 to 71 parts of an auxiliary agent group. The preparation method comprises the following steps: 1) taking diphenyl ether, paraphthaloyl chloride and isophthaloyl chloride as monomers, and synthesizing titanium modified polyether ketone ketone resins with different viscosities through segmented polymerization (1.5-2.0 hours or 3.0-4.0 hours); 2) respectively preparing a smooth bottom layer water dispersion slurry and a wrinkled surface layer water dispersion slurry; and (3) forming a compact bottom layer and a micro-wrinkle surface layer on the base material by adopting a layered spraying and stepped sintering process (280-320 DEG C, 10-20 minutes). The whole system of the coating is fluorine-free and has temperature resistance gt; the coating has the characteristics of high temperature resistance (350DEG C), wear resistance (Taber wear rate of 3-5mg / 1000r), non-sticking (contact angle gt, 100 DEG C) and heavy corrosion resistance, and is suitable for cooking utensils and chemical equipment.