832 results about "Light curing" patented technology

The invention relates to composite resin for packaging a Topcon component as well as a preparation method and application of the composite resin. Comprising an acrylate monomer, an aliphatic polyurethane acrylate oligomer, hydroxyl acrylate, bisphenol A acrylate, maleic anhydride modified epoxy acrylate, a light curing agent, a latent curing agent, a flame retardant A, a flame retardant B, a thixotropic agent, an anti-aging agent, a UV absorbent and a light stabilizer. The composite resin has the comprehensive performance of high viscosity, low shrinkage, super weather resistance and flame retardance, the aluminum-containing backboard prepared from the composite resin is high in water resistance and super weather resistance, due to the fact that light-heat double-stage curing is adopted for curing, the resin collapses and is cured to generate a solid phase, and in the follow-up aluminum foil hot-pressing curing process, the solid phase is solidified to form a solid phase; the resin is further infiltrated and cured, the porosity of the resin can be greatly reduced through a dual-curing system, water cannot enter the interior in the long-term use process, and voltage breakdown reduction of the aluminum-containing back plate under the long-term damp and hot condition is completely eradicated.

The invention provides a universal light-cured resin preparation method, and relates to the technical field of light-cured resin preparation, and the method comprises the following steps: S1, preparation of microcrystalline wax-LMA; s2, preparing an acrylic resin matrix; s3, adding microcrystalline wax-LMA and other fillers into the acrylic resin matrix, and stirring and mixing; s4, then adding a diluent and other additives, and stirring and mixing; and S5, adding a compound photoinitiator, and stirring and mixing to obtain a finished product. Through the compound photoinitiator, the surface and the deep layer of the material are synchronously cured, and almost no curing stress exists, so that the material can be cured into a sheet layer without any buckling deformation in a sunken DLP (Digital Light Processing); and secondly, the microcrystalline wax-LMA forms a microphase separation structure in the material, so that the shrinkage and cracking of the material are greatly reduced, and the effects of improving the strength and the toughness can be achieved.

The utility model discloses a hardened anti-blue-light resin car room lens, which comprises a resin substrate, an anti-blue-light resin layer and an anti-blue-light resin layer, the composite hardened film layer group is dip-coated on the surface of the resin substrate and comprises an organic silicon bottom layer, a silicon-zirconium mixed layer and an organic silicon outer layer; the anti-blue-light film layer is plated on the surface of the composite hardened film layer group and comprises a silicon dioxide layer, a titanium dioxide layer, a silicon dioxide layer, a titanium dioxide layer, a silicon dioxide layer and an indium tin oxide layer from inside to outside; the ultraviolet light curing protective layer is spin-coated on the surface of the blue light preventing film layer; and the silicon fluoride layer is arranged on the surface of the ultraviolet curing protective layer. By arranging the composite hardened film layer group consisting of the organic silicon bottom layer, the silicon-zirconium mixed layer and the organic silicon outer layer, the hardness of the resin substrate is improved, and meanwhile, the blue-light-proof film layer is plated on the outer side, so that the blue-light-proof effect is enhanced by combining the six layers of films.

The invention discloses a UHPC-foam concrete composite material with a sandwich structure and a preparation method of the UHPC-foam concrete composite material. The composite material comprises two ultra-high performance concrete (UHPC) panel layers, a foam concrete sandwich layer of a negative Poisson's ratio three-dimensional framework prepared through a photocuring three-dimensional printing technology is arranged between the two ultra-high performance concrete (UHPC) panel layers, and the three-dimensional framework is of an inward-concave honeycomb topological structure and has the characteristic of transverse expansion after being pressed; impact stress can be effectively dispersed, and a dual energy dissipation path is formed through a synergistic effect with a porous energy absorption mechanism of the foam concrete. The panel layer and the sandwich layer are combined through a layered pouring process, and an interface is subjected to scabbling treatment so as to enhance the bonding strength. The composite material is superior to a traditional material in the aspects of compressive strength and energy absorption performance, is suitable for the fields of anti-explosion buildings, military protection engineering, frontier defense facilities and the like, and has a wide application prospect.

The invention belongs to the technical field of dressing preparation, and particularly relates to a preparation method of a photocuring methacrylated gelatin hydrogel dressing, which comprises the following steps: step 1, dissolving methacrylated gelatin in a phosphate buffer solution to prepare a methacrylated gelatin solution with the mass concentration of 5-15%; 2, adding a natural photoinitiator into the solution obtained in the step 1, and uniformly stirring and mixing; 3, adding the traditional Chinese medicine active ingredient powder, and stirring until the powder is uniformly dispersed to obtain a mixed solution; and 4, pouring the mixed solution into a mold, and curing and molding under the irradiation of visible light. Chlorophyll or riboflavin is used as a natural photoinitiator and is directly dispersed in a methacrylated gelatin solution in a physical blending mode, a curing light source enables chlorophyll to completely avoid a chemical initiator, meanwhile, the process is simplified into physical stirring to replace nanoparticle synthesis and modification, visible light reduces the risk of tissue burn, the production cost is reduced, and the method is suitable for industrial production. The method is suitable for primary medicine.

The invention relates to the technical field of photo-curing lining hose machining, in particular to a pipeline non-excavation repair photo-curing lining hose, a production device and a production technology.The pipeline non-excavation repair photo-curing lining hose comprises a moving trolley, a lifting mechanism, a rotating mechanism, a large pressing roller and a plurality of small pressing rollers; according to the pipeline trenchless repair photocuring lining hose, the production device and the production process, before rolling, the bottom of the friction roller can be pushed through the stretching mechanism to penetrate out of the bottom of the small pressing roller, then the friction roller is pushed through the swing mechanism to swing in a reciprocating mode, the friction roller is driven to move through the moving trolley, and then the hose can be rubbed. And in the rolling process, the multiple small pressing rollers obliquely roll the hose, bumps are generated during rolling, and the friction roller descends to make contact with the bumps and rub the bumps, so that the resin in the hose is rubbed in the rolling process, and it is further guaranteed that large bubbles can become small bubbles.

The invention provides efficient temperature control photocuring equipment which comprises a curing module, a heat dissipation cavity, an air guide module and a cooling module, and the curing module comprises a curing light source and a curing cavity formed in the light facing side of the curing light source; the heat dissipation cavity is communicated with the curing cavity; the air guide module comprises an air guide pipe and a fan, the air guide pipe is communicated with the curing module and the heat dissipation cavity, and the fan is used for driving air around the curing light source and / or in the curing cavity to enter the heat dissipation cavity; the cooling module comprises an evaporator and a refrigeration assembly, the evaporator is arranged in the heat dissipation cavity and used for cooling air flowing from the heat dissipation cavity to the curing cavity, and the refrigeration assembly is connected with the evaporator and used for cooling a medium in the evaporator. On the premise that the environment temperature is not affected, efficient heat dissipation of the photocuring equipment can be achieved.

The invention relates to the technical field of coatings, and discloses an antibacterial and mildew-proof photocureable coating, which is prepared from the following raw materials in percentage by mass: 49 to 60 percent of photocureable resin, 27 to 40 percent of ultraviolet curing monomer, 3 to 7 percent of photoinitiator and 0 to 15 percent of additive, and the content of the additive is not 0; the additive is an aromatic aldehyde compound. According to the antibacterial and mildew-proof photocureable coating comprising the photocureable resin, the ultraviolet curing monomer, the initiator and the additive, the raw materials are limited in a specific range, and the aromatic aldehyde compound is used as the additive, so that the antibacterial and mildew-proof photocureable coating has a good mildew-proof effect; and the curing strength of the cured coating can be effectively improved.

The invention belongs to the technical field of 3D printing photocuring, and particularly relates to photocuring organic silicon modified polyurethane acrylate resin as well as preparation and application thereof. According to the invention, isophorone diisocyanate is used as a hard segment, polypropylene glycol-1000, dimethylolpropionic acid and dihydroxy-terminated silicone oil are used as soft segments, and the light-cured organic silicon modified polyurethane acrylic resin is synthesized with pentaerythritol triacrylate. By controlling the hydroxyl content in the double-terminal hydroxyl silicone oil and the proportion of the double-terminal hydroxyl silicone oil in a soft segment, the prepared organic silicon modified polyurethane acrylic resin has better flowability and light transmittance and higher double bond content; the organic silicon modified polyurethane acrylic resin, the acryloyl morpholine and the photoinitiator are cured according to a specific proportion, and the obtained elastomer has good mechanical properties and thermal stability and has high printing precision. The synthesized organic silicon modified polyurethane acrylate resin has the potential of replacing a traditional polyurethane acrylate material.

The invention discloses a chamber supporting method and structure based on ultraviolet curing resin and a construction device. The construction method comprises the steps that a flexible ultraviolet light curing resin fiber belt is positioned at the bottom of one side of the inner wall of the chamber, and a fixing anchor rod is driven into the flexible ultraviolet light curing resin fiber belt for fixing; an arch-shaped support is installed, and a telescopic supporting mechanism is installed on the arch-shaped support in a sliding mode; the flexible ultraviolet light curing resin fiber belt is tightly attached to the inner wall of the chamber and is annularly unfolded along the inner wall of the chamber, and telescopic supporting mechanisms are adopted for supporting the flexible ultraviolet light curing resin fiber belt at certain intervals; tearing off a light-proof film on the flexible ultraviolet light curing resin fiber band, and irradiating the flexible ultraviolet light curing resin fiber band with ultraviolet light; and after the flexible ultraviolet light curing resin fiber belt is completely cured, the telescopic supporting mechanism is contracted, the arched support is removed, and construction of the chamber supporting structure is completed. The method has space adaptability, deformation coordination and rapid construction capacity, and efficient and stable supporting of the chamber is achieved.

The invention relates to the technical field of packaging of organic light-emitting devices, in particular to a photocuring composition for packaging an organic light-emitting device, a packaging structure and a display device. The light-cured composition comprises a light-curable vinyl ether monomer, a light-curable diluting monomer and an initiator; the molecular structure of the photocurable vinyl ether monomer contains C6-C30 substituted or unsubstituted aryl, the aryl at least contains two photocurable cross-linking groups, and the cross-linking groups contain at least one vinyl ether functional group. The photocuring composition has the advantages of high light transmittance, high curing rate, low gas output, high heat resistance, air curing and the like, and can meet the high-performance requirement of thin film packaging.

The invention provides a silicon carbide MOS device chemical plating grid electrode protection method and a process structure, and the protection method comprises the steps: enabling a contact surface of a printing net to be pasted on a target wafer, enabling the position of a mesh to correspond to the position of a grid electrode bonding pad, enabling a net body to accurately cover a region of a source electrode bonding pad, enabling a protection glue to be accurately coated on a designated region instead of the whole surface of the target wafer, and enabling the surface of the target wafer to be protected. Therefore, the use amount of the protective glue is effectively saved and cost is reduced. After gluing is completed, a protective glue layer with a stable structure is formed on the surface of the grid bonding pad through a light curing process, and the protective layer has the peelable characteristic while keeping good adhesive force. And after the chemical plating treatment of the source electrode bonding pad is completed, the protection glue layer can be completely removed without residual pollutants, so that the reliable protection of the grid electrode bonding pad is realized. According to the chemical plating grid protection method for the silicon carbide MOS device, the protection effect and the process stability of the grid region in the chemical plating process are improved by optimizing the selection of the protection material and the coating process.

The invention discloses a glue filling device for an ultraviolet curing glass fiber hose, which belongs to the field of glue filling devices, is used for glue filling, and comprises a rack with a first compression roller, a second compression roller and a third compression roller, and a conveying belt, a seat body mounting plate is arranged at a position between the second compression roller and the first compression roller; the base body mounting plates are located on the two sides of the machine frame and are in sliding connection with the machine frame sliding rails through base body sliding rail bases respectively, the machine frame sliding rails are located on the two sides of the machine frame, the base body sliding rail bases are connected with the base body adjusting oil cylinders through plate bodies, and the base body adjusting oil cylinders are arranged in the conveying direction of the conveying belt. Side rollers and a top roller are respectively mounted on the seat body mounting plate, and the side rollers are positioned on two sides of the top roller. According to the glue filling device, glue filling between the inner film and the outer film in the ultraviolet curing glass fiber hose can be achieved on the premise that the conveying device does not need to be obliquely arranged, the glass fiber cloth layer can be fully soaked in the glue filling between the outer film and the inner film, and therefore the glue filling effect and quality are improved.

The present application relates to an ultraviolet-curing pipeline repair vehicle, which relates to the technical field of pipeline repair equipment. The ultraviolet-curing pipeline repair vehicle includes a vehicle body, a carriage, a generator set, a control cabinet and a storage rack. The carriage is arranged on the vehicle body, and the generator set, the control cabinet and the storage rack are all arranged in the carriage. A plurality of drawer cabinets are arranged in the storage rack, and the drawer cabinets store ultraviolet-curing repair equipment. The plurality of drawer cabinets are sequentially arranged at intervals in the vertical direction. The drawer cabinets are in plug-in fit with the storage rack, and the drawer cabinets are slidably connected to the storage rack along the length direction of the carriage. In the present application, the drawer cabinets can be pulled out of the storage rack along the length direction of the carriage. Then, after the carriage is opened, the drawer cabinets can be taken out outside the carriage, and thus the corresponding ultraviolet-curing repair equipment can be taken out outside the carriage. This can reduce the requirements for the internal space of the carriage for storing, taking out and loading the ultraviolet-curing repair equipment, and is convenient for the staff to take the ultraviolet-curing repair equipment.

The present invention provides an oxime ester photoinitiator, a photocurable resin composition and an application. The above-mentioned oxime ester photoinitiator has a structure shown in the general formula (I): compared with the existing oxime ester photoinitiators, the oxime ester photoinitiator with the general formula (I) structure has better stability, so under the irradiation of ultraviolet light, it can effectively suppress the generation and volatilization of small molecule fragments, and almost no overflow gas is generated after curing; at the same time, because the above-mentioned oxime ester photoinitiator has a specific substituent group, it has a strong ultraviolet absorption performance, thereby improving its sensitivity, and the oxime ester photoinitiator also has a high yellowing resistance. In addition, the oxime ester initiator with the structure shown in the general formula (I) can be used in a UV-LED light curing system, and is particularly suitable for initiation under the action of a 365nm light source.

The present application relates to a new frosted texture film and a preparation method thereof. The frosted texture film is composed of a substrate layer and a frosted texture coating layer covered thereon, and the frosted texture coating layer is formed by photocuring a specific frosted coating liquid after heat treatment. The frosted coating liquid mainly comprises a solvent-free curing composition and a frosted slurry, wherein the frosted slurry is added with heat-expandable microspheres. The solvent-free curing composition ensures rapid and efficient curing of the coating while avoiding environmental pollution. By adjusting the ratio of each component and the type and quantity of the heat-expandable microspheres, the frosted texture film can adapt to different application scenarios and customer needs. The preparation method includes the steps of preparing a frosted coating liquid, coating, heating treatment and curing. By optimizing parameters and conditions, the sandy tactile and visual beauty can be achieved at a lower coating amount, while improving production efficiency and reducing production costs.

The present invention discloses a kind of organosilicon marine antifouling and anticorrosion coating with high adhesion, its preparation method and use, the organosilicon marine antifouling and anticorrosion coating is obtained by coating a composite coating material on the surface of a substrate after light curing; the composite coating material includes dopamine acrylamide, mercapto-modified hexahedral polysilsesquioxane, mercapto polydimethylsiloxane, N-(2,4,6-trichlorophenyl) maleimide, photoinitiator and toluene. The process synthesis conditions provided by the present invention are simple, clean and environmentally friendly, ultraviolet light triggers cross-linking reaction rapidly and effectively, the prepared antifouling and anticorrosion coating has good substrate adhesion, excellent mechanical properties and antifouling and anticorrosion performance, can greatly meet the antifouling performance, substrate adhesion and mechanical strength requirements of organosilicon coatings in marine applications, and has broad application prospects in the field of marine antifouling and anticorrosion coatings.

The application belongs to the technical field of ultraviolet light curing pipeline repair, in particular to an adjusting structure for ultraviolet light curing pipeline repair, which comprises a supporting seat, four slide grooves are arranged in an annular array on the surface of the supporting seat, a supporting leg assembly is rotatably connected in the slide groove and is used for expanding and abutting against the inner wall of the pipeline, a traction rope is connected through the middle part of the supporting seat, the supporting leg assembly comprises a swing arm, the swing arm is hingedly connected to the slide groove through a shaft at one end, and a connecting seat is slidably connected to the other end of the swing arm, the connecting seat and the connecting rod are arranged, when the lining pipeline with variable diameter is adapted, the connecting rod at the bottom of the connecting seat will slide in the movable cavity, the gap between the connecting seat and the end of the swing arm can be adjusted, so that the lining pipeline with different inner diameters can be adapted without changing the deflection angle of the swing arm, the lining pipeline with variable diameter can be adapted, and the position of the ultraviolet lamp tube will not change, which will not affect the curing effect of the ultraviolet lamp tube on the lining pipeline.

The invention discloses a printing method for a composite packaging material structure with built-in hidden anti-fake laser images and texts. The method comprises the following steps: converting designed images and texts into digital images and texts; manufacturing a plate by using a laser photoetching machine to obtain an image-text nickel plate; making the digital image-text into a gravure plate; a high-precision micron-sized optical positioning mark is preset on a PET (Polyethylene Terephthalate) base film; printing transparent UV gloss oil by using a gravure plate, and dynamically adjusting the UV gloss oil coating position of a gravure press according to the real-time tracking of the position of the PET base film; performing film pressing on the PET base film on which gloss oil is completed and an image-text nickel plate, performing curing through an ultraviolet light curing lamp and then performing stripping, performing photocuring by adopting a photocuring process of pre-curing and then scanning an image through a scanning probe to compare and correct offset, and performing secondary full-curing to fix the pattern; coating and coloring the PET base film; carrying out vacuum aluminum plating on the coated PET base film; and compounding the PET base film subjected to vacuum aluminum plating with 200g roll white card, and feeding into a gravure press to finish printing. Precise overprinting of the local UV laser cold transfer pattern printed matter is achieved.

The embodiment of the invention relates to the technical field of additive manufacturing, and discloses a 3D printing tree support automatic generation method and system based on an SLA photocuring process, and the method comprises the steps: obtaining a to-be-printed three-dimensional grid model and placement azimuth information; identifying all overhanging areas needing to be supported in the three-dimensional grid model, and calculating the normal direction and the required supporting force of each overhanging point of the overhanging areas; simulating the fluid static pressure of the resin liquid on the supporting structure and the equivalent shrinkage force corresponding to curing shrinkage in the printing process through a pre-constructed mechanical model to obtain the corrected supporting force; performing tree-supported growth simulation by adopting an improved space colonization algorithm to obtain a growth skeleton; and optimizing and verifying the growth skeleton through a multi-objective optimization algorithm, and iteratively optimizing to generate a final tree support structure. According to the embodiment of the invention, an automatic, efficient and reliable tree support generation method is realized.

The utility model relates to the technical field of coupling machines, in particular to an optical module FA double-coupling-table coupling machine which comprises a machine table, a double-station dispensing device, a photocuring mechanism, a visual positioning mechanism, two coupling tables and two coupling devices. The coupling table comprises a positioning carrying table arranged on the machine table, a supporting frame arranged on one side of the positioning carrying table, a base arranged on the other side of the positioning carrying table, a sliding base connected to the base in a sliding mode, a plugging carrying table arranged on the sliding base and a plugging driving mechanism arranged on the base, and the plugging driving mechanism is used for driving the sliding base to be close to or away from the positioning carrying table. A positioning cavity is concavely formed in the top surface of the positioning platform deck, and a mounting cavity is concavely formed in the top surface of the plugging platform deck. The two coupling devices work independently and do not influence each other, the two optical modules FA can be coupled at a time, the coupling efficiency is greatly improved, the coupling qualified rate is detected through the plugging detector in the coupling process, and the coupling quality is greatly improved.

The invention belongs to the technical field of building materials, and particularly relates to a joint mixture for drainage ditch installation and a preparation method thereof, the joint mixture comprises the following raw materials by weight: 35-50 parts of urethane acrylate resin, 20-30 parts of Portland cement, 10-15 parts of fly ash, 5-10 parts of kaolin, 3-6 parts of modified carbon fiber, 0.2-1 part of a photoinitiator, 0.5-2 parts of an organosilicon waterproofing agent, and 4-8 parts of a stabilizer. The modified carbon fiber is added into the joint mixture as a reinforcing phase, so that the mechanical strength and wear resistance of the cured joint mixture can be effectively enhanced. According to the invention, the stabilizer is added into the joint mixture, so that the joint mixture has antioxidant and antibacterial effects. The polyurethane acrylate resin is adopted as the main filler, the photoinitiator is good in stability and can be stored in a dark place after being mixed, the photocuring speed is high, and use is convenient.

The invention relates to the technical field of waterproof coatings, in particular to a photo-initiation cold coating type non-curing rubber asphalt waterproof coating and a preparation method thereof, and the photo-initiation cold coating type non-curing rubber asphalt waterproof coating comprises an asphalt-based main material, a photo-curing agent and epoxy resin; the light curing agent is composed of a photoinitiator, a rubber monomer and a hindered amine light stabilizer, and the photoinitiator comprises a benzothiophene compound; the waterproof coating is in a single-component paste state, can be constructed at normal temperature, and is cured to form a waterproof coating film after being irradiated by ultraviolet rays; according to the technical scheme, a cross-linking system of the light curing agent and the epoxy resin not only keeps the creep deformation and self-healing characteristics of non-cured rubber asphalt, but also improves the heat resistance, acid, alkali and salt resistance and bonding performance of a coating film through a three-dimensional network cross-linking structure, and it is ensured that a waterproof layer adapts to building structure deformation and severe environments for a long time.

The invention relates to the technical field of contact lens automatic production, in particular to a rotary contact lens color mold transfer printing method and system, and the method comprises the following specific steps: S10, discharging of a mold; s20, carrying out pad printing pretreatment; s30, the connection device is ferried to a transfer printing area; s40, ink printing and ink light curing are conducted, pattern printing is completed, and a color mold is obtained; s50, curing is finished, and the connection device is ferried to the supply area again; s60, pattern defect and color difference detection; s70, the mold is transferred to a discharging mechanism; according to the invention, rapid switching of mold material operation stations is realized; a working area is subjected to centralized layout, and partition rapid switching ferrying is realized through a connection device, so that the overall working efficiency is improved; the defects that the thread is long and the occupied space is large are overcome, and the defects that under the rotary layout, the space of the center area of a rotary disc is wasted, and mold circulation is achieved through multiple kinds of transfer equipment are overcome; and the quality of printed patterns is improved, color difference flaws are detected in time, and the good product and processing efficiency of mold transfer printing work are integrally improved.

The invention provides a preparation device and a preparation method of a composite fire extinguishing microcapsule, and belongs to the technical field of fire extinguishing microcapsules, the preparation device comprises a first emulsion preparation assembly, a first curing assembly, a second emulsion preparation assembly and a second curing assembly; the first emulsion preparation assembly is used for preparing microcapsule emulsion containing an internal phase reagent, a light curing agent and a dispersing agent; the first curing assembly is used for carrying out light curing on the microcapsule emulsion to form a single-layer microcapsule; the second emulsion preparation assembly is used for mixing the sodium alginate aqueous solution and the single-layer microcapsules; the second curing component is used for providing a calcium ion solution to cure the sodium alginate to form a capsule coating layer. The purpose of preparing the composite fire extinguishing microcapsule with the double-layer capsule shell is achieved, the preparation efficiency and the consistency of product performance are greatly improved, and meanwhile the defect that an existing ultraviolet lamp is not uniform in microcapsule curing is overcome.

The utility model relates to a bendable dental photocuring machine which comprises a machine head and a handle, the machine head comprises a rotary joint and a fixed joint, the rotary joint is rotatably mounted on the fixed joint, the fixed joint is provided with a first inclined plane, the rotary joint is provided with a second inclined plane, and the second inclined plane is attached to the first inclined plane. The first inclined surface and the second inclined surface are circular; the fixed joint is connected with the handle. The rotary joint is provided with a light source. The rotary joint is connected with the fixed joint in a mode that the first inclined plane is attached to the second inclined plane, and the rotary joint rotates around the central point of the first inclined plane, so that the included angle between the axis of the rotary joint and the axis of the fixed joint is changed; therefore, the angle between the direction of light emitted by the dental light curing machine and the axis of the handle is adjustable.

The invention provides an optical system and photocuring 3D printing equipment, and belongs to the technical field of printing equipment. The optical system comprises a plurality of light-emitting assemblies used for emitting light. A plurality of collimation assemblies, wherein one collimation assembly is arranged corresponding to each light emitting assembly; light of each light-emitting assembly penetrates through the collimation assembly and irradiates on a target plane to form an illumination area; the controller is electrically connected with each light-emitting component and is used for independently controlling each light-emitting component; the lighting areas of every two adjacent light-emitting assemblies are at least partially overlapped to form an overlapped area, and the light intensity of the overlapped area is 80%-120% of the light intensity of a non-overlapped area in the lighting areas. Wherein the plurality of light-emitting assemblies are independently controlled by the controller, and compared with a traditional full-on and full-off light source setting mode, light interference can be reduced, and the contrast ratio can be improved; the controller controls the opening number of the peripheral light-emitting assemblies, so that the light intensity of the overlapping area is 80%-120% of the light intensity of the non-overlapping area, the possibility that dark spots or bright spots appear in the overlapping area is reduced, and the good light uniformizing effect is achieved.

The invention discloses a light energy digital control UV curing oven, and relates to the field of UV light curing equipment, the light energy digital control UV curing oven comprises an oven body, a UV curing channel is arranged in the middle of the oven body, conveyors are fixedly mounted on the front side and the rear side in the UV curing channel, and the two conveyors synchronously run; a UV curing lamp is fixedly mounted in the middle of the upper end of the furnace body, the bottom end of the UV curing lamp extends into the UV curing channel, and the UV curing lamp irradiates the interior of the UV curing channel; a plurality of detectors are mounted on the conveyor; compared with the prior art, the multiple detectors can monitor the UV light energy value and temperature in real time to obtain a light intensity power curve and a light energy total value, the UV light energy is detected in real time, the technical effect of digital UV curing is achieved, and the curing energy of UV glue is accurately controlled; and the controller is connected and installed on the detector, data storage within a period of time is achieved in the controller through the storage module, and the technical effect that the glue curing energy on the produced product is traceable is achieved.

The invention discloses a 3D printing photocuring forming method for a silicon nitride ceramic framework, and belongs to the technical field of advanced ceramic additive manufacturing. According to the 3D printing photocuring forming method for the silicon nitride ceramic framework, the silicon nitride framework containing a communicating hole array and a special-shaped supporting structure can be prepared through the DLP photocuring technology and customized slurry, the efficient infiltration requirement of a multiphase ceramic matrix is met, and the manufacturing efficiency is improved. The powder dispersity is improved through modification of a silane coupling agent, resin residues are thoroughly removed through cooperative control of a low-shrinkage resin system, segmented exposure, gradient degreasing and sintering, interface reaction with a complex-phase matrix at high temperature is avoided, stable complex-phase performance is guaranteed, layering does not exist after standing is conducted for 24 h through customized slurry, the process stability is extremely high, and the method is suitable for industrial production. Therefore, the problems of single skeleton structure, low dimensional precision and high impurity content in the prior art are solved, a complex three-dimensional pore structure can be prepared, the process stability is high, and the method is suitable for batch production and meets the requirements of multiple scenes such as high-temperature structural parts and multiphase ceramic reinforcement bodies.

The present invention discloses a wear-resistant soft-light tile with a translucent texture and a preparation method thereof, which relates to the field of ceramic tile processing. The preparation process includes the following steps: (1) Brick blank pretreatment step: Select a rough brick blank as the substrate, and preheat the polished rough brick blank at a temperature of 40-50 °C for 10-15 minutes; (2) Wear-resistant soft-light treatment step on the surface of the rough brick blank: Add a wear-resistant soft-light liquid, perform grinding, control the grinding coating time, and control the gloss of the brick blank surface to be less than 30°, so as to form a wear-resistant soft-light layer on the surface of the rough brick blank; (3) Soft-light curing treatment step: Drop and coat the soft-light curing liquid, control the dropping speed and the grinding coating time, so as to form a soft-light curing layer on the surface of the rough brick blank. Compared with the existing soft-light ceramic tile products, the soft-light tile of the present invention can achieve excellent results in terms of gloss, stain resistance, and the lasting wear-resistant effect of the translucent texture.