445results about How to "Control thickness" patented technology

The invention relates to the technical field of flexible display devices, in particular to a high-impact-resistance coating for ultra-thin glass, a preparation method and an assembly layer. The invention discloses a high-impact-resistance coating for ultra-thin glass. The high-impact-resistance coating is mainly prepared from a precursor, a cross-linking agent and a photoinitiator in a solvent-free condition in a UV curing manner, the precursor comprises a polyether urethane acrylate oligomer with Tg of-70 DEG C to-40 DEG C; the Tg of the coating is 30-60 DEG C; and in a temperature scanning test with the temperature range of-40 to 80 DEG C and the frequency of 1Hz, the peak value of the loss factor of the coating is 0.7 to 1.2. The high-impact-resistance coating provided by the invention has good adhesion and excellent optical performance, also has good elongation at break and good flexibility, has a high dissipation effect on mechanical stress, and can enhance the impact resistance of the ultra-thin glass. In addition, the high-impact-resistance coating is prepared through a UV photocuring method and does not contain a solvent, the VOC emission in the production and preparation process is low, and the coating is green and efficient.

The invention belongs to the field of rotary body component forming, and particularly relates to a close-up spinning device and forming method.The close-up spinning device comprises a rotating table, a clamping assembly fixedly arranged on the rotating table and at least one spinning assembly, and the spinning assemblies can control the thickness and surface quality of a cylindrical workpiece; the thickness of a product is convenient to control, the thickness of the product can more easily meet the design requirement, and a thin-wall rotary body component with the uniform thickness and a thin-wall rotary body component with the gradually-changed thickness can be produced; according to the forming method, the cylindrical workpiece with the radius-thickness ratio larger than 200: 1 can be subjected to closing-in spinning, the closing-in spinning process is divided into three stages, different closing-in track routes and differentiated machining technologies need to be selected in different closing-in stages, the shape precision and surface quality of closing-in spinning are guaranteed, and the machining efficiency is improved. The box bottom forming efficiency can be effectively improved through integral spinning forming.

The invention relates to the technical field of engineering construction, and discloses a concrete pavement paving device for engineering construction, which comprises a crawler machine, a rotating seat and a support plate, the rotating seat is fixedly mounted on the crawler machine, the upper end of the rotating seat is fixedly connected with a mounting plate, and the upper end of the mounting plate is transversely and movably provided with a telescopic arm; one side of the back plate is movably mounted at one end of the telescopic arm, two fixing seats are hinged to one side of the back plate, a first shell is jointly mounted on the two fixing seats, a second shell is arranged on one side of the first shell, a paving mechanism is jointly mounted between the first shell and the second shell, and the paving mechanism is used for uniformly paving concrete on the surface of a roadbed. And vibration trowelling can be realized after paving. According to the concrete pavement paving device for engineering construction, concrete of a curb and a pavement can be paved on the pavement, the paving thickness can be controlled, a template does not need to be paved on the surface of a roadbed, and the construction speed is increased.

The invention discloses an optical lens, a camera module and terminal equipment, the optical lens comprises seven lenses with refractive power, the first lens has negative refractive power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens element with negative refractive power has a concave object-side surface and a convex image-side surface. The third lens element with positive refractive power has a convex object-side surface and a convex image-side surface. The fourth lens element with positive refractive power has a convex object-side surface and a convex image-side surface. A fifth lens element with refractive power; the sixth lens has refractive power, the seventh lens has positive refractive power, and the object side surface of the seventh lens is a convex surface; the optical lens satisfies the following relational expressions: FOV is greater than or equal to 140deg and less than or equal to 151deg, 6.4 lt; tTL / IMGHlt; 7 and 1lt; sAGs1 / CT1lt; and 1.25. According to the optical lens, the camera module and the terminal equipment, high-pixel imaging can be taken into account while the miniaturization design of the optical lens is met.

The invention discloses a method for improving the efficiency of a perovskite solar cell, and belongs to the technical field of solar cells. The insulating spacer film prepared between the electron transport layer and the perovskite layer of the perovskite solar cell by adopting the electron beam evaporation method has high uniformity, the cell interface structure can be optimized, defects are reduced, charge recombination loss is reduced, and the photoelectric conversion efficiency and stability are effectively improved. The insulating spacer layer not only can block external moisture and pollutants, reduce direct contact between the perovskite layer and the electron transport layer and prolong the service life of the cell, but also can inhibit internal ion migration and slow down performance degradation. By accurately regulating and controlling the thickness of the insulating spacer layer, charge transmission optimization and compound loss minimization are realized. An innovative technical path is provided for research and development of efficient and stable perovskite solar cells, and further development of the solar cell technology is expected to be promoted.

The invention discloses a natural polysaccharide assisted MXene porous membrane electrode and a preparation method thereof, and relates to the technical field of electrodes. According to the technical scheme, hydrochloric acid and lithium fluoride are used for carrying out etching and intercalation on an MAX raw material, and MXene dispersion liquid is obtained; mixing the MXene dispersion liquid with a metal ion solution to obtain a metal ion doped MXene solution; mixing the metal ion doped MXene solution with a natural polysaccharide dispersion liquid to obtain a natural polysaccharide modified MXene dispersion liquid; mixing the natural polysaccharide modified MXene dispersion liquid with a template substance, performing vacuum filtration, and performing vacuum drying to obtain a flexible MXene film; and carrying out template substance removal treatment on the flexible MXene film to obtain the natural polysaccharide-assisted MXene porous film electrode. According to the invention, the stacking problem of the MXene material is solved, and the electrochemical performance of the natural polysaccharide-assisted MXene porous membrane electrode is obviously improved.

The invention discloses a self-aligned double-epitaxial super-junction MOSFET and a manufacturing method, the self-aligned double-epitaxial super-junction MOSFET comprises a semiconductor layer arranged on a substrate, a plurality of body regions distributed along the surface of the semiconductor layer are arranged in the semiconductor layer, and a source region located below the surface of the semiconductor layer is arranged in each body region; the pair of first side walls are arranged on the surface of the semiconductor layer above each source region in a self-aligned manner; the super junction groove is arranged in the semiconductor layer in a penetrating manner between each pair of first side walls; the first epitaxial layer of the first conductive type and the second epitaxial layer of the second conductive type are arranged in the super junction groove and are connected with the body region; and the gate oxide layer and the gate electrode are arranged on the surface of the semiconductor layer between two adjacent pairs of first side walls. According to the invention, the range of ion implantation can be accurately adjusted while the number of photomasks is reduced and self-alignment is realized, and the drift region can be directly changed into the intrinsic semiconductor layer, so that the on-resistance can be reduced while the withstand voltage is improved.

The invention discloses a multi-bending machine for a branch belt of a flexible printed circuit (FPC) and a bending process of the multi-bending machine, the multi-bending machine comprises an FPC support table, a bearing mechanism and a bending part, the FPC support table is erected on a case along a linear direction, and the FPC is placed on the FPC support table; the bearing mechanism is vertically connected to the outer side of the FPC support table; the bent part is arranged in the mounting space of the case; the bending part comprises a first bending mechanism, a second bending mechanism and a third bending mechanism which linearly and rotationally move in a horizontal plane; the first bending mechanism turns over by 180 degrees along the first bending line after supporting the belt; the second bending mechanism clamps the branch belt which is bent for the first time and turns over the branch belt by 180 degrees to complete bending for the second time; the third bending mechanism clamps the branch belt bent for the second time and turns over the branch belt by 180 degrees to complete bending for the third time. According to the automatic bending device, multiple times of automatic bending can be completed at different positions and different angles of the same branch belt, the situation of local upwarp in the bending process is avoided, the bending position precision is improved, the bending thickness and the bending radian are accurately controlled, and the surface flatness of a bent belt body is improved.

The invention belongs to the technical field of solar cells, and particularly relates to a composite layer for a laminated solar cell and application of the composite layer. The invention aims to provide a novel intermediate composite layer material based on metal nitrogen oxide, the novel intermediate composite layer material specifically comprises titanium oxynitride, tantalum oxynitride and molybdenum oxynitride, and the composite layer material has the advantages of proper energy level matching, good light transmission, small parasitic absorption, excellent carrier recombination performance, low preparation cost and good stability. The material is prepared by adopting magnetron sputtering and atomic layer deposition methods, the preparation process is simple, the deposition damage is small, the photoelectric property of the material can be regulated and controlled by adjusting deposition parameters, and then excellent carrier recombination performance is achieved. Compared with a common doped indium oxide composite layer and a doped silicon film tunnel junction, the metal nitrogen oxide intermediate composite layer has the advantages of simple preparation process, low cost, small optical parasitic absorption and the like; and the lateral conductivity is relatively low, so that the method is suitable for preparing a large-area perovskite / crystalline silicon laminated cell.

The invention relates to the technical field of printing, in particular to a structural member with insulation and heat dissipation functions and a printing process thereof.The structural member comprises a base material layer, a graphite layer and a surface layer which are sequentially arranged from bottom to top, the base material layer is made of PA, and the surface layer is made of PI materials; the lowermost layer is made of a PA material, the middle layer is a graphite film, and the uppermost layer is made of a PI material; due to the excellent insulating and puncture-resistant performance of PA, when PA is in contact with a device conductor, the insulating and puncture-resistant functions can be effectively achieved. By means of the efficient heat conductivity coefficient of the graphite layer, the product has the heat dissipation effect of rapidly diffusing a single-point heat source. And the base material layer and the graphite layer are tightly combined by adopting a thermal compounding technology, so that the integrity of the structure is ensured, the production process is simplified, and the production efficiency is improved.

The invention discloses a preparation method of foam composite self-floating sponge and photo-thermal interface evaporation application of the foam composite self-floating sponge. In the foaming process of preparing the porous sponge, the step of adding hydrophobic foam particles in situ is introduced, and the composite material which can rapidly absorb and guide water and has the self-floating characteristic is prepared through a one-step method. The composite material disclosed by the invention can simultaneously meet the dual functions of water absorption, water diversion and self-floating. When the composite material is used as a substrate material of a photo-thermal interface evaporation system, a spontaneous, continuous and stable outdoor evaporation process can be ensured. Under the condition of simulating 1 solar radiation (1000 W / m < 2 >), the technology realizes the water evaporation rate up to 1.86 kg.m <-2 >. H <-1 >; and under natural sunlight irradiation (about 435 W / m < 2 >), the average sewage evaporation rate reaches 1.70 kg.m <-2 >. H <-1 >, and the daily average sewage evaporation capacity is 12.0-14.0 kg.m <-2 >.

The utility model provides a steel bar protective layer thickness control structure, and relates to the technical field of building construction.A cushion block is arranged between a steel bar and a formwork so that a certain distance can be formed between the steel bar and the formwork, and it needs to be noted that the height of the cushion block in the direction perpendicular to the face of the formwork is equal to the design value of the steel bar protective layer thickness. The distance between the steel bar and the template is the design value of the thickness of the steel bar protective layer; the fixing piece used for being firmly connected with the formwork is arranged on the cushion block, so that it is guaranteed that the cushion block cannot move relative to the formwork in the concrete pouring process; the binding piece used for tightly binding the reinforcing steel bar is arranged on the cushion block so as to ensure that the relative position between the reinforcing steel bar and the cushion block is not changed in the concrete pouring process, and therefore the reinforcing steel bar can be reliably connected with the formwork through the cushion block, it is ensured that the thickness of a reinforcing steel bar protection layer of a concrete member is reliably controlled, and the building construction quality is improved.

The invention relates to the field of fuel cells, and particularly discloses a gas diffusion layer, a preparation method thereof and a proton exchange membrane fuel cell applying the gas diffusion layer, and the preparation method of the gas diffusion layer comprises the following steps: preparing porous substrate layer carbon paper; performing hydrophobic treatment on the porous substrate layer carbon paper to obtain hydrophobic carbon paper; a hydrophobic agent and water are mixed to obtain hydrophobic slurry A, conductive powder, a surfactant, a binder and an organic solvent are mixed and dispersed to obtain conductive powder slurry B, the hydrophobic slurry A and the conductive powder slurry B are mixed to form spraying slurry C, the spraying slurry C is sprayed on hydrophobic carbon paper while being stirred, drying and curing are conducted after spraying, and a microporous layer is formed. A gas diffusion layer is obtained; the invention further discloses the gas diffusion layer prepared by adopting the method and the proton exchange membrane fuel cell applying the gas diffusion layer. The application has the characteristics of solving the problems of dispersion uniformity of the conductive powder in the slurry and sedimentation in the coating process, improving the quality of the microporous layer and further improving the performance of the fuel cell.

The invention discloses a curved surface self-adaptive gluing device and a use method, and belongs to the technical field of gluing. In the device, a glue barrel penetrates through a fixed base plate in an up-down moving mode, the lower end of the glue barrel is provided with a glue opening enabling high-viscosity glue liquid to flow out smoothly, and a piston capable of moving up and down is arranged in the glue barrel; the guide wheels are arranged at the lower end of the glue barrel, distributed on the left and right sides of the glue opening and used for being in contact with a coated surface; the floating mechanism is fixed with the rubber sleeve and can be connected with the fixed substrate in an up-and-down floating manner; the glue scraping mechanism is fixed to the fixed base plate, located right behind the glue opening and used for scraping glue in constant-force fit contact with the coated surface. The gluing device is good in gluing quality, high in efficiency, free of damage to the coated surface of a coated component, convenient to use and particularly suitable for curved surface coating and plane coating.

The invention discloses a pressure belt manufacturing device with a medium-frequency heating structure, and relates to the technical field of belt manufacturing equipment. The pressure belt manufacturing device comprises a belt manufacturing mechanism and a cooling box installed on one side of the belt manufacturing mechanism, the medium-frequency heating mechanism is arranged at the top of the belt manufacturing mechanism, and a medium-frequency heating cover is arranged in the medium-frequency heating mechanism; the belt manufacturing mechanism comprises a circulating water collecting box, fixing discs are symmetrically installed on the two sides of the interior of the circulating water collecting box, annular collecting boxes are fixedly installed on the inner sides of the two fixing discs correspondingly, drainage pipes are fixedly installed at the bottoms of the two annular collecting boxes correspondingly, and connecting shafts are fixedly installed on one sides of the two annular collecting boxes correspondingly. A herringbone scraper is fixedly connected between the two connecting shafts, the herringbone scraper is attached to the surface of a cooling roller, amorphous molten metal on the surface of the cooling roller after cooling is removed, pressure strip manufacturing is facilitated, and meanwhile the herringbone scraper can be attached to the bottom of an amorphous strip to conduct pressing guiding of the amorphous strip.

The invention belongs to the technical field of films, and relates to an anti-dazzle anti-reflection anti-fingerprint film, which comprises a transparent support body, an anti-dazzle hardening coating and an anti-reflection coating, and the anti-dazzle hardening coating is obtained by coating and curing a coating liquid prepared from the following components in parts by mass: 1 to 40 parts of resin 1, 1.8 to 4.8 parts of resin 2, 0.75 to 3.25 parts of a photoinitiator and 0.3 to 1.75 parts of a thermal curing agent, the anti-glare coating is prepared from the following components in parts by weight: 0.75 to 4.75 parts of anti-glare particles, 0.25 to 1.25 parts of a flatting agent 1, 0.03 to 0.15 part of a flatting agent 2 and 44.05 to 76.12 parts of a solvent, the antireflection coating is obtained by coating and curing a coating liquid prepared from the following components in parts by mass: 0.47 to 1.8 parts of resin 2, 2.4 to 6.0 parts of resin 3, 0.12 to 0.75 part of a photoinitiator, 0.1 to 0.45 part of a thermal curing agent, 0.18 to 1.65 parts of a flatting agent 3, 0.56 to 2.4 parts of modified hollow silicon dioxide, 0.1 to 1.25 parts of a wetting dispersant and 85.7 to 95.74 parts of a solvent. According to the technical scheme provided by the invention, the anti-glare and low-reflection coating has good anti-fingerprint performance, coating adhesive force and friction resistance while having anti-glare and low-reflection performance.

The invention discloses a wide-band-gap perovskite solar cell and a preparation method thereof, and belongs to the technical field of new energy, the method comprises the following steps: 1) spin-coating a NiOx solution on a pretreated substrate, and drying to obtain a NiOx hole transport layer; 2) mixing FAI, CsI, PbBr2 and PbI2, dissolving the mixture in a mixed solution of DMF and DMSO, and then adding 4, 5-dicyanoimidazole to obtain a perovskite precursor solution; the NiOx hole transport layer obtained in the step 1) is coated with a perovskite precursor solution through a two-step spin-coating method, and a perovskite layer is obtained after annealing treatment; and 3) successively preparing an electron transport layer and an electrode layer to obtain the wide-band-gap perovskite solar cell. By providing a 4, 5-dicyanoimidazole additive strategy, the strong coordination effect between 4, 5-dicyanoimidazole and iodide ions effectively inhibits the precipitation of iodine, thereby significantly improving the stability of the wide-band-gap solar cell.

The invention relates to a quantitative and rotary feeding system which comprises a quantitative feeding device, a rotary scattering device and a supporting plate. The quantitative feeding device comprises a bucket elevator and a belt weighing crusher; the belt weighing crusher comprises a mounting bracket, a feeding hopper, a dust cover, a crusher, a weighing belt conveyor, a storage hopper and a weighing hopper; a feed hopper is arranged above the mounting bracket, a dust cover is arranged above the feed hopper, and the lower part of the feed hopper is communicated with a crusher; a weighing belt conveyor is arranged in the mounting bracket, a storage hopper is arranged above the weighing belt conveyor, and the weighing belt conveyor is communicated with a weighing hopper; a rotary material scattering device is arranged between the quantitative feeding device and the supporting plate and comprises a supporting bent plate, a bearing seat, a driving motor and a material scattering hopper controlled by the driving motor; a bearing seat and a driving motor are arranged on the supporting bent plate, a scattering hopper is arranged in the bearing seat, and a plurality of material ports are formed in the edge of the bottom end of the scattering hopper. According to the feeding device, the occupied space can be reduced, and the feeding uniformity can be improved.

The invention discloses a preparation method and a use method of bleeding inhibition microspheres for concrete. The preparation method of the bleeding inhibition microspheres for the concrete comprises the following steps: (1) performing ultrasonic dispersion on alkali-soluble polyester fibers, lauryl sodium sulfate and water to obtain a mixed solution A; (2) dissolving high-modulus sodium silicate in water, adding the steel slag micro powder, and uniformly stirring to form a turbid liquid B; (3) mixing the mixed solution A, the turbid liquid B and sodium alginate to form a mixed solution D; (4) reacting the mixed solution D with an excessive calcium nitrate solution, and filtering to obtain gel microspheres; (5) adding excessive sodium citrate solution into the gel microspheres, dissolving and filtering to obtain particles; and (6) reacting the particulate matters with a sodium hydroxide solution, and filtering to obtain the bleeding inhibition microspheres. When the bleeding inhibition microspheres are added into concrete, bleeding of the concrete can be obviously reduced, the fluidity and cohesiveness of a concrete mixture are improved, and the mechanical property and the volume stability of the concrete are improved.

The present invention discloses a catalyst carrier mesh belt kiln, which belongs to the technical field of mesh belt kilns, including a kiln body, an inner cavity of the kiln body is provided with a conveyor mesh belt, and power is provided between the conveyor mesh belt and the kiln body through a magnetic conductive mechanism, a pushing mechanism for pushing the catalyst material is provided on the top of the conveyor mesh belt, and a spreading mechanism for spreading the catalyst material is provided on the side of the pushing mechanism. The present invention sets a magnetic conductive mechanism and utilizes the application of magnetic power-on technology to achieve rapid switching of the connection and disconnection of the circuit, and at the same time sets the conveyor mesh belt in a segmented connection mode, and powers on through the mutual magnetic connection of the first magnetic block and the second magnetic block, and powers on the conveyor mesh belts currently connected separately through the heat conductive block, so that the catalyst at the current position can be roasted or dried, and the problem of excessive accumulation of catalysts, resulting in excessive volume and affecting the roasting or drying effect can be avoided.

The invention relates to the field of ring forging, and discloses a large-size ring forging forming device which comprises a bottom plate and an annular forging, a ring rolling control mechanism is arranged on the front side of the upper surface of the bottom plate, a ring rolling mechanism is arranged on the rear side of the upper surface of the bottom plate, and the ring rolling mechanism comprises a mounting base fixed to the upper surface of the bottom plate; three extending plates are evenly arranged on the periphery of the surface of the side, close to the ring rolling control mechanism, of the mounting base, a fixing bolt is arranged in the center of the surface of the ring rolling mechanism, two rail rods are symmetrically arranged between each extending plate and the fixing bolt, and sliding blocks are slidably mounted on the surfaces of the two rail rods in the same group. Rollers are rotationally installed on the surfaces of the sliding blocks, sliding sleeves are slidably installed on the surfaces of the fixing bolts, synchronous extrusion and external expansion are conducted on the ring piece through the three rollers capable of synchronously moving, the ring piece is driven to rotate at a high speed, it is guaranteed that the ring piece is evenly stressed in the machining process, the problems of eccentricity or insufficient roundness and the like are solved, and the forming quality is guaranteed.

The utility model discloses an automatic separating device for metal foreign matters in tobacco shreds, which comprises a base, the top of the base is fixedly connected with a shell, the top of the inner wall of the shell is fixedly connected with a mounting rack, the bottom of the mounting rack is fixedly connected with a metal detector, the top of the shell is fixedly connected with a hydraulic cylinder, and the hydraulic cylinder is fixedly connected with a hydraulic cylinder. And the bottom of the hydraulic cylinder is fixedly connected with an electromagnet. The utility model relates to the technical field of tobacco production, in particular to an automatic separating device for metal foreign matters in tobacco shreds, which realizes the control of the thickness of the tobacco shreds on a conveying component through the matching among a first motor, a double-thread screw, a threaded block, a sliding rod, an inclined column, a transverse column and a vertical plate. The problem that when an existing automatic separation device automatically separates metal foreign matter in tobacco shreds, due to the fact that the tobacco shreds on conveying equipment are thick, some metal hidden in the middles of the tobacco shreds cannot be easily found by a metal detector, the situation of missing occurs, and the separation effect of the existing automatic separation device is reduced is solved.

The invention discloses an orthopedic implant with antibacterial and osteogenesis-promoting characteristics and a preparation method thereof, and belongs to the technical field of medical materials.The preparation method comprises the steps that a titanium stent subjected to acid treatment is placed in a NaOH solution, and a sodium titanate coating is formed on the surface of the titanium stent after alkali heat treatment; after annealing, immersing into a mixed solution of EDTA-CaNa2 and NaH2PO42H2O, and after heating reaction, forming a hydroxyapatite coating on the surface of the sodium titanate coating; immersing the hydroxyapatite coating into a mixed solution of glucolactone and sodium alginate, controlling the pH value of the mixed solution to be 5, and forming a porous hydrogel coating on the surface of the hydroxyapatite coating after reaction; and soaking the loaded medicine to obtain the orthopedic implant. A multi-layer structure of the sodium titanate coating, the hydroxyapatite coating and the porous hydrogel coating is sequentially formed on the titanium alloy stent, and finally, the medicine is loaded, so that the titanium alloy stent has various characteristics of resisting bacteria, promoting osteogenesis and the like.

The invention discloses a preparation method and application of a biomimetic mineralized hydrogel coating with high adhesiveness, and relates to the technical field of bone implant surface modification. The method comprises the following steps: immersing a bone implant subjected to surface pretreatment into a polyvinyl alcohol solution, then carrying out single freezing and thawing cycle, and then carrying out annealing treatment, alternately soaking the annealed bone implant in a calcium-containing solution and a phosphorus-containing solution, and carrying out surface mineralization treatment; then, inducing a product subjected to surface mineralization treatment to obtain hydroxyapatite; the biomimetic mineralized hydrogel coating with strong adhesiveness is obtained on the surface of the bone implant. According to the method, the surface of the bone implant is coated with the strong-adhesion hydrogel coating by adopting a dip-coating method, and the thickness and the surface flatness of the coating can be controlled by adjusting the dip-coating frequency.

The invention discloses a magnetic assembly bonding method, which comprises the following steps of: when magnets are arranged in a mutual attraction manner according to Halbach polarity, adjusting the mutual attraction surface between a guide magnet and a non-guide magnet to be the minimum attraction force by controlling the thickness of an iron plate so as to adjust the distance between the guide magnet and the non-guide magnet; the thickness control of an adhesive layer between the magnets is realized; when the magnets are arranged in a mutually exclusive mode according to the same polarity, the magnetic assembly further comprises an iron piece, the maximum attraction force borne by the half assembly and the other magnet by the iron plate is adjusted by controlling the thickness of the iron plate, and the maximum attraction force is larger than the repulsive force between the half assembly and the other magnet after the half assembly and the other magnet are bonded. Therefore, the other magnet is positioned after being bonded with one half of the assembly, and the thickness of the adhesive layer between the magnets is controlled. The thickness of the adhesive layer of the magnetic assembly can be controlled, the shearing strength of the magnetic assembly is improved, and the performance of a product is guaranteed.

The invention relates to a glass fiber reinforced plastic continuous production line and a production method, and relates to the field of glass fiber reinforced plastic production equipment.The glass fiber reinforced plastic continuous production line comprises a bottom film feeding and gluing unit, a lower surface mat laying and gluing mechanism, an upper-layer fiber laying and infiltrating mechanism, a glue supplementing and laminating unit, a heating and curing unit and a trimming and cutting unit; the bottom film feeding and gluing unit is used for guiding a bottom film and blade-coating a layer of gel coat on the bottom film, the lower surfacing mat laying and gluing mechanism is used for laying a lower surfacing mat on the gel coat and coating resin glue on the lower surfacing mat, the upper-layer fiber laying and infiltrating mechanism is used for laying a main fiber layer and an upper surfacing mat on the lower surfacing mat and infiltrating the resin glue, and the lower-layer fiber laying and infiltrating mechanism is used for laying the main fiber layer and the upper surfacing mat on the upper-layer fiber laying and infiltrating the resin glue. The glue supplementing and laminating unit supplements resin glue on the upper surfacing mat and then paves a top film, the top film is output after being heated and cured by the heating and curing unit and trimmed and cut by the trimming and cutting unit, and the quality of glass fiber reinforced plastic products can be guaranteed. The invention further discloses a glass fiber reinforced plastic continuous production method.

The invention provides a digital manufacturing method and system for a transparent retainer. The method comprises the steps that a digital oral cavity model of the oral cavity of a patient is obtained, a repair steel wire model is determined, and steel wire data of the repair steel wire model and a digital steel wire oral cavity merging model are exported; carrying out bending processing according to the steel wire data to obtain a steel wire piece entity; based on the digital steel wire oral cavity merging model, a digital retainer base model with a clamping groove shape is determined, and the clamping groove shape is reserved according to the repair steel wire model; the digital retainer base model is subjected to 3D printing, a retainer base real object is obtained, and the retainer base real object is provided with a steel wire clamping groove corresponding to the clamping groove in shape; and the steel wire piece real object is installed in the steel wire clamping groove, the steel wire piece real object and the retainer base plate real object are fixed, and a transparent retainer finished product is obtained. The problems that in the prior art, cost is high due to manual production, and product production quality standards are difficult to unify are solved.

The utility model discloses a fiber light concrete steel bar truss permanent floor support template and a floor support plate, and the floor support template is formed by binding truss steel bars and steel bar meshes through binding wires, then placing the truss steel bars and the steel bar meshes on laid alkali-resistant glass fiber gridding cloth, and finally pouring high-performance fiber light microporous concrete for gapless compounding. The floor support plate is formed by secondarily pouring reinforced concrete on the upper portion of the floor support template serving as a bottom template. The floor support template has the characteristics of light weight, high strength, heat preservation, fire prevention, sound insulation, permeability resistance, economy and attractiveness, can meet the requirement of supporting the template through a small number of supporting pieces due to the high strength and good mechanical property, can carry out rapid construction, improves the construction efficiency, reduces the construction cost, and is suitable for large-scale popularization and application. The problems that an existing common disassembly-free bottom die steel bar truss floor support plate is large in dead weight and does not insulate sound and heat are solved, floor bottom heat preservation and structure integration is achieved, and the requirements of sound insulation, heat preservation and the same service life of a main body structure are met.

The invention discloses a preparation method of a metal net, which comprises the following steps of: putting a metal coarse net with an anti-corrosion layer into a corrosion tank to corrode a metal part of the metal coarse net, which is positioned outside the anti-corrosion layer, so that the width of a metal coarse line of the metal coarse net is effectively reduced, and the opening area of a single grid opening of the metal coarse net is increased; according to the method, the coarse metal mesh can be rapidly prepared into the metal mesh with thin metal lines and large opening area of a single mesh opening, so that the opening rate of the metal mesh is increased, the production efficiency is greatly improved, and the production cost is reduced.

The invention discloses a defect detecting and coating robot for an underground hydrogen storage shaft. The robot is composed of an anchoring walking device, a feeding device, a coating device, a visual monitoring device, a take-up and pay-off device and a remote control operation table. The roller type coating device is adopted, and the auger disc stirring rod is adopted for stirring and feeding, so that the problems that the thickness of a coating at the connection damage position of a shaft sleeve is not uniform, and the coating range is difficult to control are solved; a static visual monitoring device is adopted to collect clearer and more stable images, so that the problem that the operation state of the robot and the gluing quality are difficult to monitor is solved; an anchoring walking device is adopted, an anchoring mechanism and a walking mechanism are integrated, automatic reducing can be achieved, obstacles in a pipe can be crossed, and the problem that an anchoring mechanism is too complex, cannot pass through the obstacles and is blocked in a well is solved. The remote automatic control system is adopted to achieve remote real-time adjustment of the operation state of the robot, and the problems that the operation requirements of the robot are variable, and the operation state cannot be switched in time are solved.