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458 results about "Light curing" patented technology

A curing light is a light which is designed to rapidly cure a resin. Curing lights are used primarily in the dental industry, where they are used in fillings, sealants, and adhesives for various dental procedures. Other versions of the curing light can be seen in use in manufacturing, where rapid...

Preparation method of photocuring methacrylated gelatin hydrogel dressing

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.
Owner:咸宁市中心血站

Method, structure and construction device for supporting chamber based on ultraviolet curing resin

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.
Owner:POWERCHINA ZHONGNAN ENG +2

Glue pouring device for ultraviolet curing glass fiber hose

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.
Owner:JIANGSU ZHIJIAQI NEW MATERIAL TECH CO LTD

An adjusting structure for ultraviolet light curing pipe repair

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.
Owner:ANHUI PULUOLAN PIPELINE REPAIR TECH CO LTD

3D printing tree support automatic generation method and system based on SLA light curing process and 3D printing equipment

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.
Owner:SHENZHEN FUTURE FACTORY ADDITIVE TECHNOLOGY CO LTD

Photo-initiation cold coating type non-curing rubber asphalt waterproof coating and preparation method thereof

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.
Owner:CHINA RAILWAY HEBEI INVESTMENT DEV & CONSTR CO LTD +3

3D printing photocuring forming method of silicon nitride ceramic skeleton

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.
Owner:XIANGYANG AVIATION RES INST +1

Volume 3D printing optical element manufacturing method based on multi-dimensional spin-coating surface modification

The invention provides a volume 3D printing optical element manufacturing method based on multi-dimensional spin-coating surface modification, which comprises the following steps: preparing a photosensitive resin precursor solution containing a low-concentration photoinitiator, and performing exposure molding through a volume 3D printing technology to obtain a semi-cured initial blank; preparing a spin-coating liquid containing a high-concentration photoinitiator and an optional functional additive, and coating the surface of the primary blank with the spin-coating liquid through a precise spin-coating process; and finally, light curing is performed in a vacuum environment, so that the liquid film is completely crosslinked and chemically bonded with the surface of the initial blank. The high-concentration initiator spin-coating layer is used for overcoming the oxygen inhibition effect, a traditional solvent cleaning process is replaced, and the Ralt is obtained; the high-smoothness optical surface with the thickness of 5 nm is obtained, the original geometric accuracy of printing is kept, meanwhile, spin coating liquid is used as a universal carrier, full-color coloring, gradient color and multi-layer function superposition of the surface of an optical element are achieved, and the application range of volume printing in the optical field is greatly expanded.
Owner:JIANGNAN UNIV

Device for detecting working state of lamp holder of ultraviolet curing equipment

The utility model relates to the technical field of industrial semiconductors, and discloses a device for detecting the working state of a lamp holder of ultraviolet light curing equipment, which integrates temperature, wind pressure and ultraviolet light intensity detection functions by optimizing the structure of a hardware circuit. The circuit comprises a switch type capacitor voltage converter, a linear voltage regulator, a phototriode, an NTC thermistor, a partial pressure sensor and a CAN communication module. Through the bidirectional TVS diode, RC filtering and two-stage voltage stabilization design, the anti-electromagnetic interference capability is improved, and the signal transmission reliability is improved; temperature, wind pressure and illumination detection circuits are integrated on a single board, the structure is simplified, and the space is saved; the standby energy consumption of the sensor is reduced through hardware power management; by comprehensively optimizing the circuit structure and the signal transmission path, the detection reliability of the working state of the lamp holder of the ultraviolet curing equipment is improved.
Owner:HANGZHOU CHUANGKE SEMICONDUCTOR CO LTD

Leveling device applied to photocuring printer

The utility model discloses a leveling device applied to a photocuring printer, and belongs to the technical field of 3D printing, the leveling device is characterized by comprising a fixed plate arranged on a rack and a light machine arranged on the fixed plate, and a connecting plate used for fixing the light machine is arranged at the lower end of the fixed plate; the fixing plate and the connecting plate are both provided with coaxial through holes for an optical machine lens to penetrate through, the fixing plate is provided with four force application pieces which always apply acting force close to the connecting plate to the connecting plate, the four force application pieces are arranged on the two sides of the fixing plate respectively, and three micrometer heads are evenly arranged on the fixing plate and surround the through holes. The measuring heads of the three micrometer heads always exert abutting force on the connecting plate, three abutting screws used for abutting against the connecting plate are evenly arranged on the fixing plate and surround the through hole, and the device has the advantages of being simple in structure, convenient to operate and high in precision.
Owner:李奕飞

Sealing foil attaching machine

The invention relates to the technical field of non-standard equipment manufacturing, in particular to a sealing foil attaching machine. The multi-station rotary workbench is arranged in the center of the machine table, and a plurality of bearing jigs are evenly distributed in the circumferential direction of the multi-station rotary workbench. The semi-finished workpiece conveyor and the finished workpiece conveyor are linearly arranged on one side of the workbench; the workpiece picking equipment is used for transferring the semi-finished products from the semi-finished product workpiece conveyor to the bearing jig in a time-sharing mode and transferring the finished products from the bearing jig to the finished product workpiece conveyor. The sealing foil supply equipment continuously supplies the sealing foil, and the sealing foil pickup equipment transfers the sealing foil and attaches the sealing foil to a preset position of the workpiece; and the dispensing equipment and the illumination curing equipment are sequentially arranged in the rotating direction of the multi-station rotating worktable and are respectively used for applying glue to the periphery of the sealing foil and performing UV curing on an adhesive. When the multi-station rotary workbench rotates, the bearing jig sequentially goes through the feeding station, the foil pasting station, the adhesive dispensing station, the curing station and the discharging station, automation of the whole process is achieved, the processing period is shortened, and the sealing effect of a finished workpiece is guaranteed.
Owner:SUZHOU SIFANG MECHANICAL & ELECTRICAL EQUIPMENT CO LTD

Device for light application

Device for light application (1), in particular for light curing of liquid materials, e.g. dental fillings within the oral cavity, the device comprising: - a handheld handpiece (10) with a housing and a light source (11) arranged inside the housing for emitting light, - a light guiding element (20) with a light guide body (21) consisting of a transparent solid, a light inlet (27) for coupling light into the light guide body (21) such that the light is guided through the transparent solid, and a light outlet (26) for coupling light out of the light guide body (21), and - a fastening device provided on the housing of the handpiece (10) and a fastening area provided on the light guide element (20) for fastening the light guide element (20) to the housing of the handpiece (10), such that light emitted by the light source (11) is coupled into the light guide body (21) through the light inlet (27) and is coupled out of the light guide body (21) outside the housing of the handpiece (10) through the light outlet (26), - wherein the light guide element (20) has a longitudinal extent and defines a first optical axis for light coupled into the light guide body (21), wherein this first optical axis runs along the longitudinal extent of the light guide element (20), and wherein the light exit (26) defines a second optical axis for light coupled out of the light guide body (21), wherein this second optical axis runs transversely to the first optical axis and - wherein the light guiding element (20) is designed in the form of a rod with a rod axis extending substantially in a straight line along its longitudinal extent, such that the second optical axis runs transversely to the rod axis at the distal end, and / or wherein a reflector (23) for coupling out light is applied to the light guiding element (20), - wherein the light guiding element (20) comprises a sheath (22) enclosing the light guide body (21) and / or the reflector (23), wherein the sheath (22) has a refractive index which is lower than the refractive index of the light guide body (21), such that a core-sheath interface is formed for guiding the light.
Owner:SCHOTT AG

Visual paster dispensing light curing all-in-one machine

The utility model relates to the technical field of dispensing machines, in particular to a visual patch dispensing and light curing all-in-one machine which comprises a rack, a mounting plate is arranged in the rack, an X-axis moving structure, a Y-axis moving structure and a Z-axis moving structure are arranged on the mounting plate, a station carrier plate is arranged at the moving end of the X-axis moving structure, a lower CCD camera is arranged on the station carrier plate, and the Z-axis moving structure is arranged on the lower CCD camera. The Y-axis moving structure is located on a moving path of the X-axis moving structure, the Z-axis moving structure is located at a moving end of the Y-axis moving structure, the Z-axis moving structure comprises three moving ends which are respectively provided with a light curing head, a primary chip mounting head and a secondary chip mounting head, an upper CCD camera is arranged on the Z-axis moving structure, and a dispensing cylinder is arranged on one side of the upper CCD camera. The X-axis moving structure and the Y-axis moving structure drive the Z-axis moving structure and the station carrier plate to move horizontally, the upper CCD camera and the lower CCD camera position the horizontal position bidirectionally, the Z-axis moving structure carries out lens assembly, dispensing and light curing, and the whole structure is high in automation degree and easy to use.
Owner:XIAMEN TEMITE AUTOMATION TECH CO LTD

Acrylic plate rapid coating process based on nano composite coating

The invention relates to the technical field of ultraviolet curing coatings, and discloses a rapid acrylic plate coating process based on a nano-composite coating, which comprises the following two steps of: 1, irradiating by using deep ultraviolet light with the wavelength of 254-310 nanometers, triggering a photoinduced base generator to catalyze ammonium bicarbonate to decompose, and then, carrying out irradiation by using ultraviolet light with the wavelength of 254-310 nanometers; the decomposition reaction of ammonium bicarbonate generates gas in situ to form a physical oxygen barrier layer, the endothermic effect inhibits the temperature rise, and the product ammonia gas can also catalyze the thiol-Michael addition reaction on the surface of the coating to form a chemical oxygen sealing layer; 2, a UVA-LED lamp with the wavelength of 395 nanometers is used for irradiation, main body free radical polymerization is efficiently initiated, and deep curing of the coating is achieved. Through the synergistic effect of physical oxygen isolation and chemical oxygen sealing, ultra-fast and defect-free curing can be achieved in the air without nitrogen protection, thermal damage to a thermosensitive base material is avoided, and the service life of the coating is prolonged. And the obtained coating has high hardness and high adhesive force.
Owner:YINGTAN JURUI NEW MATERIALS CO LTD

Light curing lamp device

The utility model belongs to the technical field of medical equipment, and relates to a photocuring lamp device which comprises a main machine and a base, the main machine comprises a handle and a lamp holder, and shells of the handle and the lamp holder are made of metal materials; the base is in communication connection with the host and is provided with a screen. According to the technical scheme, heat dissipation can be carried out directly through the handle made of metal materials and the shell of the lamp holder, the temperature of equipment is effectively reduced, in addition, a heat dissipation structure can be reduced or omitted, the host can be conveniently designed to be small and thin, the screen design of the host is omitted, the screen is arranged on the base, the host can be designed to be small and thin, and the cost is reduced. The hand shank and the lamp holder are made of metal materials with good heat dissipation performance under the condition that the hand shank is thin, the situation that temperature excursion of components in the hand shank influences communication is avoided, and the stability of communication connection between the hand shank and the base is guaranteed.
Owner:CHANGZHOU SIFARY MEDICAL TECH CO LTD

Semi-cured seam beautifying adhesive tape as well as preparation method and application thereof

The invention relates to a semi-cured seam beautifying adhesive tape as well as a preparation method and application thereof. The semi-cured seam beautifying adhesive tape is prepared from the following raw materials in percentage by mass: 30 to 55 percent of polyurethane acrylate oligomer, 18 to 35 percent of reactive diluent, 5 to 20 percent of reworking adjusting monomer, 3 to 7 percent of photoinitiator, 1 to 3 percent of adhesion promoter, 0.5 to 1.5 percent of flatting agent and 0.2 to 0.8 percent of defoaming agent. The repair adjusting monomer comprises a soft monomer and / or a dynamic crosslinking monomer. The semi-cured seam beautifying adhesive tape provided by the invention is simple and convenient to construct and use, can be completed only by directly pressing the semi-cured seam beautifying adhesive tape into a tile seam and performing light curing, can be cleaned and replaced after being heated, is simple in construction and installation operation, convenient to clean and convenient to maintain in the later period, and can remarkably save time and labor cost.
Owner:BAUHINIA PAINTS SHANGHAI CO LTD

Display screen packaging adhesive curing forming device

The invention relates to the technical field of display screen packaging adhesive curing and forming, in particular to a display screen packaging adhesive curing and forming device which comprises a forming equipment body, a light shield is arranged on the upper surface of the forming equipment body, and a light shielding mechanism facilitating light shielding of an inlet and an outlet is arranged on an inlet and outlet cover. An irradiation curing lifting mechanism facilitating adjustment of the irradiation curing distance is arranged in the light shield, and a refraction mechanism facilitating self-adaptive angle refraction of ultraviolet light is arranged on the irradiation curing lifting mechanism. According to the display screen packaging adhesive curing forming device, a first limiting rod is connected with a lifting base and a lamp panel through a lifting sliding sleeve and a connecting plate, meanwhile, a threaded rod arranged on the upper surface of the lifting base is sleeved with a screw hole chain wheel, and the screw hole chain wheel is connected with a motor and a driving chain wheel through a transmission chain; therefore, the irradiation distance between the lamp panel and the display screen can be changed according to different sealing glue and requirements while the lamp panel is used for carrying out light curing irradiation on the display screen subjected to glue sealing.
Owner:ANHUI YUSHENG TECH CO LTD

Uv nanoimprint superposition 3d printing composite device and process thereof

The application relates to the technical field of glass surface printing, and discloses a UV nano-imprint superposition 3D printing composite device and a process thereof, which comprises a bottom plate, a nano-imprint mechanism arranged on the bottom plate, and a 3D printing mechanism arranged above the nano-imprint mechanism; the 3D printing mechanism is fixed on the bottom plate; the 3D printing mechanism comprises a frame structure composed of a vertical rod and a horizontal rod; a moving trolley is arranged on the horizontal rod at the upper end of the frame structure; a fixing rod is arranged between the two moving trolleys; a moving trolley is also arranged on the fixing rod, and a 3D printing nozzle and a UV light curing device are arranged on the moving trolley. The glass surface is subjected to nano-imprint through the nano-imprint mechanism, then the 3D printing nozzle and the UV light curing device on the moving trolley are used to perform curing and 3D printing in sequence, so that the color pattern and the embossing texture are ensured to be manufactured, the complex and tedious color matching operation is not needed, the product scrappage rate is low, and the cost is low. The application also provides a UV nano-imprint superposition 3D printing composite process.
Owner:LONGKOU KENUOER GLASS TECH CO LTD

Organic silicon sealant as well as preparation method and application thereof

The invention relates to an organic silicon sealant as well as a preparation method and application thereof. The organic silicon sealant comprises the following components: composite vinyl-terminated polydimethylsiloxane, vinyl silicon resin, a cross-linking agent, a chain extender, a catalyst, a tackifier, fumed silica and a silane coupling agent, the composite vinyl terminated polydimethylsiloxane comprises first vinyl silicone oil and second vinyl silicone oil, the viscosity of the first vinyl silicone oil is larger than that of the second vinyl silicone oil, the vinyl content in the first vinyl silicone oil is lower than that in the second vinyl silicone oil, and the vinyl content in the second vinyl silicone oil is 0.1 mmol / g to 0.2 mmol / g. The organic silicon sealant can be subjected to ultraviolet light curing, the curing speed is high, and the strength, toughness, aging resistance and adhesive property of the organic silicon sealant subjected to ultraviolet light curing are good.
Owner:SUZHOU TONGLI PHOTOELECTRIC CO LTD

A control system and method for multi-material composite continuous light curing

This invention relates to the technical field of photopolymer additive manufacturing, and specifically to a control system and method for continuous photopolymerization of multi-material composites. The system includes a control unit, a projection unit, and a composite molding execution unit. Since the composite molding execution unit is positioned above the projection unit, the Z-axis lifting module is perpendicular to the projection unit, and the X-axis translation module is connected to the Z-axis lifting module. This achieves physical isolation between the dual independent optomechanics and the material tank, continuous molding of functionally graded materials through dynamic parameters and multi-mode scheduling, and cross-tank collaborative control and interface strengthening treatment. The control method for continuous photopolymerization of multi-material composites of this invention, by achieving continuous printing of two materials through time-driven cross-tank collaborative control, improves the interfacial bonding strength of heterogeneous materials and increases printing speed, thereby solving the problems of poor multi-material compatibility, low switching efficiency, and low interfacial bonding strength.
Owner:FOSHAN UNIVERSITY

Sunken full-automatic light-curing printer

In order to solve the problems of the prior art, the present application provides a sunken full-automatic light-curing printer, comprising a control system and a printing section, a taking section and a light-curing section fixed in the support. The displacement mechanism is controlled by the control system to drive the printing substrate mechanism to transfer between the printing section, the taking section and the light-curing section. After accurate positioning analysis, the control system controls the displacement position of the Z-axis displacement mechanism and the displacement position of the printing substrate by controlling the opening / closing and movement state of the displacement mechanism. The present application realizes the integration of printing, taking, cleaning and curing functions of a single printer by the displacement of the printing substrate mechanism between sections, significantly compresses the production line space, and thus realizes the completion of the whole process by one device.
Owner:CHANGZHOU WEIREN DIGITAL TECH CO LTD

UV curing box and its UV curing method

This invention discloses a photocuring chamber for photocuring models. It includes a shell containing a photocuring light source, a curing container, and a model-tumbling mechanism. The curing container is filled with a first fluid, and the model is placed inside. The curing container is made of a transparent material. The model-tumbling mechanism is connected to the curing container and causes the model to randomly tumble within the first fluid. The mechanism drives the flow of the first fluid, causing the model within it to tumble randomly, ensuring that each surface of the model is illuminated by the photocuring light source. This results in uniform illumination of the entire model and a good post-curing effect.
Owner:ZHEJIANG FLASHFORGE 3D TECH CO LTD

Resin composition for heat transfer printing protective layer and heat transfer printing film

The invention discloses a resin composition for a heat transfer printing protective layer and a heat transfer printing film, and belongs to the technical field of resin compositions. The invention relates to a resin composition for a heat transfer printing protective layer and a heat transfer printing film, the composition takes ultraviolet light curing type polyurethane acrylate resin as a main body, and is matched with a trifunctional acrylate monomer, organic silicon modified acrylate, a fluorine-containing surfactant, surface modified nano silicon oxide, a photoinitiator, a reactive diluent, an anti-yellowing stabilizer and the like. The preparation method comprises the following steps: uniformly mixing the main resin component and the diluent, then adding the organic silicon modified acrylate and the functional auxiliary agent, then adding the photoinitiator and the anti-yellowing agent, fully stirring, filtering, and irradiating with a UV light source at 40-60 DEG C for 6-10 seconds to form the protective layer. The protective layer has excellent yellowing resistance, good hydrophobic antifouling property and high hardness, the weather resistance of the heat transfer film is remarkably improved, the service life of the heat transfer film is remarkably prolonged, and the heat transfer film is suitable for the field of protection of various images and texts.
Owner:JIANGSU XUETAI PRINTING

A nano-ceramic slurry for light-curing molding and a method for preparing the same

The application relates to the technical field of ceramic slurry, in particular to a nano ceramic slurry for light-curing forming and a preparation method thereof. The application provides a nano ceramic slurry with high solid content and low viscosity, which comprises 35wt%-90wt% ceramic powder, 10wt%-65wt% photosensitive resin, 2wt%-5wt% dispersant of the mass of the ceramic powder and 1wt%-5wt% sintering aid of the mass of the photosensitive resin. The ceramic slurry prepared by combining mechanical mixing with ball milling has a solid content as high as 60.21vol% and a viscosity as low as 24778 mPa.s. The low viscosity is favorable for the flattening of the slurry in the printing process, improves the final printing quality, the high solid content can reduce the cracking problem of the ceramic embryo in the subsequent debinding and sintering process, and improves the ceramic density.
Owner:HARBIN INST OF TECH

A high-precision optical correction assembly method for a scanning mirror

The application relates to a high-precision optical alignment assembly method of a scanning mirror, and belongs to the technical field of laser radar manufacturing equipment, and solves the technical problems of insufficient precision, no compensation for glue shrinkage, low efficiency and high cost of special equipment in the existing scanning mirror assembly. Based on the light reflection principle, the method characterizes the included angle between the scanning mirror and the motor shaft through light path amplification offset, constructs an optical alignment system by using point laser, mirror group and scale receiving plate, completes coarse adjustment and fine adjustment by cooperating with the scanning mirror adjustment jig, makes the positions of the laser spots on the scale receiving plate coincide after the motor rotates 180 degrees, and then completes UV glue curing through the light curing device, and realizes high-precision assembly by combining the glue shrinkage compensation mechanism and the quantitative verification standard. Through the optical alignment method of light path amplification offset, the quantitative adjustment, the verification standard and the glue shrinkage compensation mechanism are combined, high-precision assembly of the scanning mirror and the motor shaft is realized, the glue shrinkage preset offset compensation scheme is established, and the angle offset problem of UV glue curing shrinkage is avoided.
Owner:HANGZHOU DIANZI UNIVERSTIY INFORMATION ENG SCHOOL

Antistatic humidity-regulating polyester composite fabric and preparation method thereof

The present application relates to a kind of antistatic humidity regulating polyester composite fabric and its preparation method.The fabric includes polyester matrix layer, humidity regulating layer, conductive mesh layer and discrete adhesive layer from inside to outside.The humidity regulating layer is polyvinyl alcohol and polyurethane interpenetrating network porous membrane, the thickness is 15-40 μm, and its calcium chloride mass fraction and pore size increase along the film thickness direction, with good humidity regulating performance;The conductive mesh layer is woven by core-sheath type conductive filament, which enhances the antistatic performance of the fabric;Discrete adhesive layer is point-like heat-light curing acrylate adhesive, which ensures stable bonding between layers and maintains good moisture permeability.The preparation method includes freeze-thaw cycle preparation of humidity regulating layer, corona treatment of conductive mesh layer and light curing process of discrete adhesive layer.The composite fabric has excellent humidity regulating effect, antistatic performance and good wearing comfort.
Owner:CHANGXING JINFA TEXTILE

Ultraviolet curing adhesive film curing equipment

The utility model relates to the technical field of curing equipment, and discloses ultraviolet curing adhesive film curing equipment which comprises a supporting frame, supporting legs and a conveying device body and further comprises a threaded rod, a sliding block, a lamp holder, an ultraviolet lamp tube and a sealing mechanism, the supporting legs are fixedly connected to the bottom of the supporting frame, the conveying device body is arranged in the supporting frame, and the supporting legs are fixedly connected to the bottom of the supporting frame. A threaded rod is rotationally connected to the interior of the supporting frame, a sliding block is in threaded connection to the exterior of the threaded rod, a lamp holder is fixedly connected to the inner side of the sliding block, an ultraviolet lamp tube is arranged in the lamp holder, and the threaded rod rotates to lift the height of the ultraviolet lamp tube. Compared with clamping lifting fixing, the height of the ultraviolet lamp tube is increased and decreased through rotation of the threaded rod, lifting is more flexible, the ultraviolet lamp tube can be fixed at any proper position through the self-locking function between the threaded rod and the sliding block, the fixing position is more flexible, flexible adjustment can be conducted according to the size of materials, the application range is wider, and use is more convenient.
Owner:苏州市新广益电子股份有限公司

A filtration device for photocuring high viscosity monomers

ActiveCN224388211USolve the problem of poor fluidity and difficulty in filteringSolving hard-to-filter problemsStationary filtering element filtersTemperature controlMotor drive
The utility model relates to the field of light curing material processing technology discloses a kind of filtering devices of light curing high viscosity monomer, including support base, the top of support base is provided with support plate, the left side of the top of support base is provided with spiral pressurizing mechanism, the spiral pressurizing mechanism is used to spiral pressure filtration high viscosity monomer to improve filtering effect, the right side of the top of support base is provided with collection mechanism, the top of support plate is provided with filtering mechanism, the right side of filtering mechanism is provided with drainage mechanism, the top of filtering mechanism is provided with temperature control heating mechanism. In the utility model, set up spiral pressurizing mechanism, motor drives screw driving rod, screw pressure plate is axially compact to high viscosity material, left and right side ascending assembly provides orientation, solve the problem that high viscosity material is difficult to filter due to poor flowability, improve the compacting effect of light curing high viscosity monomer, improve filtering efficiency and product purity.
Owner:JIANGSU SANMU GRP CORP +1

Method for manufacturing a folding-resistant transfer silver card box and silver card box manufactured by the method

The application relates to the technical field of silver card paper processing, and particularly discloses a preparation method of a folding-resistant transfer silver card box and a silver card prepared by the method. The preparation method of the folding-resistant transfer silver card box comprises the following steps: compounding an aluminum plating film and base paper, drying to obtain an aluminum plating layer after removing a protective film on the surface of the aluminum plating film; coating a primer on the surface of the aluminum plating layer away from the base paper, drying to obtain a primer layer; coating ink on the surface of the primer layer away from the aluminum plating layer, light curing to obtain an ink layer; coating a glazing oil on the surface of the ink layer away from the primer layer, light curing to obtain a glazing oil layer; die cutting a score line, and the preparation is completed; the preparation raw material of the primer comprises an acrylic resin; and the width of the score line is 1-1.1 mm. The silver card has better folding resistance, does not have an obvious burst problem after being folded at an external force of 180 degrees for 5 times, the folding resistance of the existing silver card is improved from 1 time to 5 times, and the problem that the silver card of the existing paper box is not resistant to bending at the score line is reduced.
Owner:SHANGHAI YOUNG SUN PRINTING CO LTD

Pipeline photocuring turnover equipment based on CIPP

The utility model relates to the technical field of engineering machinery, in particular to CI PP-based pipeline photocuring turnover equipment, which comprises a turnover machine main body and a cable winder, the cable winder is arranged on one side of the turnover machine main body, a Y-shaped sleeve is mounted on the turnover machine main body, a hard cable is wound on the cable winder, and the cable winder is connected with the Y-shaped sleeve. Curing equipment is arranged at the end, away from the Y-shaped sleeve, of the hard cable and comprises a light curing probe and an ultraviolet generator, a connecting pipe is arranged at the position, away from the circular face of the hard cable, of the light curing probe, a butt joint pipe is arranged at the end, close to the connecting pipe, of the ultraviolet generator, and a temporary fixing sleeve is installed on a rod body of the butt joint pipe; the protection structure is further arranged on the ultraviolet generator of the equipment, the protection structure can well protect the ultraviolet curing lamp, and even if a collision phenomenon occurs, the protection structure can also isolate the ultraviolet curing lamp from being in contact with an object.
Owner:LANGFANG WEIGU ENVIRONMENTAL TECH CO LTD +1