4599results about How to "Improve flatness" patented technology

The electrochemical mechanical polishing method and device are characterized in that a workpiece clamping device is adjusted according to the size of the semiconductor wafer and is adsorbed on a pressurizing device, and the semiconductor wafer is connected to a positive electrode of a power supply through a conducting ring to serve as an anode of an electrolysis system; the fixed abrasive pad is fixed on the polishing disc through a conductive adhesive and is connected to a power supply cathode through a conductive ring to serve as a cathode of the electrolysis system; during polishing, a polishing solution is connected with a conductive adhesive for fixing the polishing pad through a through hole in the fixed abrasive pad to form an electrolytic tank path, chemical oxidation and anodic oxidation are carried out on the surface of the third-generation semiconductor wafer during polishing to form a passivation oxide layer with low hardness, and valleys of the passivation oxide layer are passivated and protected. And the peak is quickly removed by the fixed abrasive, so that a polishing mode of anodizing and online removing the surface of the third-generation semiconductor wafer is realized. The method has the advantages of high abrasive utilization rate, high material removal rate, good surface quality, recycling of the polishing solution and the like.

The invention relates to the technical field of polaroid cutting machining, in particular to a clamp for a polaroid laser cutting machine, which comprises a fixing table, a flattening end pulling mechanism, a sucking, fixing and bending lowering mechanism and a pressing and fixing mechanism. According to the polaroid straightening and flattening device, the tops of the four corners of a polaroid are adsorbed through the flattening and end pulling mechanism, and the polaroid is straightened and flattened in the width direction and the length direction, so that the situation that the polaroid placed on the bearing base is bent and upwarped, and consequently the accuracy of the subsequent cutting size is affected is avoided; the flattening and end pulling mechanism is matched with the sucking and bending reducing mechanism and the pressing and fixing mechanism to carry out negative-pressure sucking and fixing and pressing and fixing during local cutting on the flattened polaroid, the fixing flatness of the polaroid is greatly improved, an air blowing set is matched with cooling liquid, a cutting area closed by the pressing and fixing mechanism is cooled, and the cutting efficiency is improved. And bending deformation of the cutting part of the polaroid due to temperature change is avoided, so that the fixing and cutting quality of the polaroid is improved.

The invention discloses a light guide plate film covering method, device and equipment, and the method comprises the steps: responding to the detected size, material and surface condition of a light guide plate, and judging whether the light guide plate meets a film covering standard or not; commanding the robot to grab the membrane material, accurately positioning the alignment operation of the light guide plate and the membrane material through a visual guidance system, and adjusting the fitting position; controlling the membrane material to be preliminarily attached to the light guide plate, and adjusting pressure and adsorption force in real time according to material characteristics; analyzing data of the visual detection system, commanding the intelligent fluid dynamics control device to process bubbles or wrinkles, and meanwhile, re-scanning the processed area to ensure that the defoaming effect is qualified; and controlling the curing time, the curing temperature or the UV light intensity according to the used curing mode. According to the technical scheme, the laminating quality is improved, and bubbles and flaws are reduced.

The utility model relates to the technical field of drying equipment, and provides a packaging box paperboard drying device which comprises a supporting frame and a sealing frame fixedly installed on the supporting frame, a plurality of conveying rollers are installed on the inner side of the supporting frame in a rotating mode, and a conveying belt is arranged outside the conveying rollers in a transmission and sleeving mode. A conveying motor is fixedly installed on one side of the supporting frame, an output shaft of the conveying motor and the conveying rollers are coaxially fixed, a drying assembly used for drying the paperboards is arranged in the sealing frame, and a ventilation assembly used for accelerating drying of the paperboards is arranged in the supporting frame. Through the arrangement of the drying assembly, the packaging box paperboard is dried, hot air generated by the drying assembly can dry the bottom of the packaging box paperboard through operation of the ventilation assembly, and compared with a traditional drying mode, the problem that the bottom of the packaging box paperboard is not prone to making contact with the hot air is solved; in addition, due to the existence of the overturning assembly, the upper and lower surfaces of the packaging box paperboard can be overturned, and the drying effect of the packaging box paperboard is further improved.

The invention provides an ultrathin substrate polishing head and an ultrathin substrate polishing device.The ultrathin substrate polishing head comprises a polishing head body, a substrate holding part and a substrate holding ring, the substrate holding part and the substrate holding ring are both connected to the bottom of the polishing head body, the substrate holding ring is arranged on the periphery of the substrate holding part in a sleeving mode, an elastic film is arranged on the bottom face of the substrate holding part, and the elastic film is arranged on the bottom face of the substrate holding part. An adsorption hole is formed in the substrate holder in a penetrating manner, a through hole is formed in the elastic film, and the substrate holder is used for adsorbing the substrate to the bottom wall of the elastic film. According to the ultrathin substrate polishing device provided by the invention, the elastic film is arranged below the substrate holder, so that the adsorption force of the air bag on the substrate can be effectively buffered, the problems of non-uniform stress and overlarge local deformation of the substrate are avoided, the deformation quantity of the substrate in the grinding process is effectively controlled, the probability of occurrence of fragments is reduced, and the polishing quality of the ultrathin substrate is improved. The high flatness, uniformity and consistency of the surface of the substrate are improved, and meanwhile the polishing rate of the edge position of the substrate is increased.

The invention relates to an aluminum alloy chemical mechanical polishing solution and a preparation method and application thereof.The polishing solution is prepared from, by mass, 20%-30% of grinding materials, 1%-5% of oxidizing agents, 0.01%-1% of complexing agents, 0.01%-1% of pH regulators and the balance deionized water; wherein the complexing agent is a mixture of a first complexing agent and a second complexing agent, the first complexing agent is short-carbon-chain organic acid with the carbon atom number of 2-4, and the second complexing agent is long-carbon-chain organic acid with the carbon atom number of 8-10; the grinding material is a mixture of aluminum oxide and silicon dioxide, and the silicon dioxide is a mixture with the particle size of 10-40 nm, 40-70 nm and 90-110 nm. Compared with the prior art, the method has the advantages that the removal rate can be increased, and the surface roughness of the workpiece is reduced.

The invention relates to the technical field of battery materials, in particular to a graphite negative electrode material and a preparation method and application thereof. The graphite negative electrode material comprises graphite particles, the average length La of the graphite particles in the alpha-axis direction of microcrystals is larger than or equal to 40 nm, the average thickness Lc of the graphite particles in the c-axis direction of the microcrystals is larger than or equal to 25 nm, and the interlayer spacing d002 ranges from 0.336 nm to 0.338 nm, and the number parameter of the microcrystals contained in each single graphite particle is defined as N = D503 / (La2 * Lc); d50 is the median particle size of the graphite particles, the unit is [mu] m, and the numerical value of N is more than 0 and less than or equal to 0.04. The graphite negative electrode material disclosed by the embodiment of the invention comprises the graphite particles with stable microcrystalline structure, large microcrystalline size and large interlayer spacing, so that the expansion and stress distribution uniformity of the negative electrode material in the circulation process is improved, the diffusion of ions in the graphite particles is facilitated, the consumption of active lithium is reduced, and the service life of the negative electrode material is prolonged. And the dynamic and super-long cycle stability of the graphite negative electrode material is improved.

The invention discloses an efficient aluminum plate cold-rolling mill oil injection mechanism, and relates to the technical field of aluminum plate cold-rolling mill oil injection, the efficient aluminum plate cold-rolling mill oil injection mechanism comprises a machining table, a transmission roller is fixedly mounted on the inner wall of the machining table, a motor is fixedly mounted on the outer wall of the machining table, and a pressing roller is fixedly mounted at the output end of the motor; the anti-deviation device is arranged on the inner wall of the machining table and comprises a lubricating box, a spraying opening, a supporting frame, a linear motor, a sliding plate, a sensor, a servo motor, a conveying wheel, a push plate, a guide plate, a fixing frame, a trapezoidal block and a deburring rod. The servo motor moves in the direction close to the middle of the conveying roller to drive the conveying wheel to move in the direction close to the middle of the conveying roller, the conveying wheel moves in the direction close to the middle of the conveying roller to be matched with the conveying belt to correct the aluminum plate, and the situation that the aluminum plate deviates during oil injection, consequently, lubricating oil cannot effectively cover the aluminum plate, and follow-up pressing roller rolling is affected is prevented.

The invention discloses a manufacturing method of a thin plate body thick copper strong current-carrying circuit rigid-flex board, the rigid-flex board comprises a flexible area and a rigid area, a thick copper layer is half-etched twice to respectively form a first rigid core board and a second rigid core board, and the two half-etched patterns correspond to each other to form a complete circuit; taking a double-sided thick-copper flexible copper-clad plate to manufacture a flexible plate circuit pattern, pasting a first covering film on a corresponding flexible area, then carrying out silk-screen printing of resin ink on a corresponding rigid area, and drying to form a flexible core plate; taking a prepreg, a low-flow-glue prepreg and the core plate to be stacked and then laminated to form a laminated plate; manufacturing a surface circuit pattern, a solder mask and an uncovering layer on the laminated board in sequence to form a rigid-flexible combined board; according to the manufacturing method, the line gaps are filled, and the prepregs only play a bonding role, so that the thickness of the prepregs arranged between the layers can be effectively reduced, and the problems of infirm pressing, poor glue filling and the like caused by the fact that large glue needs to be filled in the line gaps of the thick copper circuit board are solved.

The invention discloses a weak surrounding rock tunnel peripheral hole empty hole guide back break control blasting construction method. The method comprises the steps that the surrounding rock grade and the blasting circulation footage are determined; designing tunnel peripheral hole hollow guide drilling blasting parameters, and determining peripheral hole pitch and explosive load; performing drilling operation; after drilling of the rock drilling equipment is completed, hole-separated charging is carried out on the peripheral holes, and the distance L between the charging peripheral holes and the non-charging empty holes is preliminarily calculated by analyzing the stress state, the impact pressure and the failure criterion of rock; according to the distance L, non-charging empty holes are formed between the charging peripheral holes; after safety alert is ensured, blasting is carried out; the steps are repeated until the tunnel blasting back break value reaches the expected standard, the optimal tunnel peripheral hole hollow guide drilling blasting parameters can be determined, and construction is conducted according to the optimal parameters; over-excavation and under-excavation can be effectively controlled, the situations of block falling of weak surrounding rock and the like are effectively reduced, and the safety and working efficiency of follow-up construction operation are improved.

The invention discloses a double-guide-column plastic material forming machine. The die comprises a supporting base, a lower die base arranged on the supporting base, an upper die base capable of moving in a reciprocating mode relative to the lower die base, a driving supporting base arranged on the rear portion of the supporting base and a guiding supporting base vertically arranged on the driving supporting base, and a driving lead screw is arranged on the driving supporting base. Two guide rods parallel to the driving lead screw are arranged between the top of the guide supporting base and the supporting base, the upper die base is installed with the driving lead screw and the two guide rods in a matched mode, and a die pressing plate matched with the lower die base is fixedly installed on the upper die base. The mold pressing plate can reciprocate relative to the lower mold base through lifting of the upper mold base so as to press a blank. The device has the advantages that the action reliability and stability are good in the pressing process, and the pressing quality is greatly improved. And the parallelism of the guide rod and the screw rod is ensured, so that the pressing quality is greatly improved. The device is easy to manufacture, low in manufacturing cost, convenient to operate and use and high in use efficiency.

The invention discloses a method for improving the micro LED mesa morphology by using multilayer masks and segmented etching, and belongs to the technical field of semiconductor processing technologies. The method comprises the following steps: firstly, depositing a SiO2 mask layer on the surface of an epitaxial layer, and then obtaining a photoresist through hole structure through spin coating, exposure and development; then, a chromium metal film layer is deposited and then lifted away from the photoresist, and a patterned chromium metal film layer is prepared; taking the patterned chromium metal film layer as a mask, and etching to prepare a patterned SiO2 mask layer; etching the patterned chromium metal film layer and the upper region of the epitaxial layer by using an etching gas with a high Cl2 / BCl3 flow ratio, and etching the patterned SiO2 mask layer and the lower region of the epitaxial layer by using an etching gas with a low Cl2 / BCl3 flow ratio; by adjusting the time of the two etching processes and the flow parameters of the etching gas, the time point when the chromium metal film layer is consumed can be controlled, and the effects of controlling the up-down diameter of the table top and controlling the etching angle are achieved.

The invention discloses a super-wear-resistant super-hydrophobic coating in the technical field of coatings, the super-wear-resistant super-hydrophobic coating comprises a primer and a finishing coat, the primer comprises solvent-free aliphatic polyether polyol resin, micro-powder particles, di-tetratoluene diisocynate, fumed silica nanoparticles and a primer magnetic attraction material; the finishing paint comprises hydrophobic nanoparticles, a diluent, a finishing paint magnetic attraction material and a hydrophobic treatment agent, the primer magnetic attraction material is ferrite powder, and the finishing paint magnetic attraction material is nickel powder. The preparation method comprises the following steps: 1, preparing the primer; secondly, primer is sprayed; step 3, roughening the primer; 4, finish paint is manufactured; step 5, spraying finish paint; and step 6, detecting the performance of the coating. The preparation method is scientific and reasonable, the uniformity and stability of the coating in the preparation and coating process are ensured by optimizing the composition of the coating material, improving the preparation process and introducing a magnetic suction device, and therefore the wear resistance, hydrophobicity and adhesive force of the coating are improved.

The invention provides a road surface flatness repairing method based on a scheduling algorithm and related equipment, and relates to the field of road engineering. The method comprises the following steps: acquiring image data of a target road, dividing a road surface region and sub-road surface regions according to a preset region size, and coding the sub-road surface regions; and then obtaining point cloud data of the sub-pavement areas, dividing the point cloud data into horizontal and vertical column point clouds according to the width and length of the sub-pavement areas, and determining the pavement flatness according to the difference value of the key point coordinates of each column of point clouds. And determining the sub-pavement area with the flatness lower than the first threshold value or higher than the second threshold value as a to-be-repaired position, and determining a to-be-repaired category. And then candidate maintenance vehicles with the distances to the to-be-repaired position being within a set range and matched with the to-be-repaired position in category are determined, a target maintenance vehicle is determined from the candidate maintenance vehicles in combination with a departure time priority algorithm, and finally a maintenance task is sent to the target maintenance vehicle. Accurate detection and efficient repair of the pavement flatness are realized.

The invention relates to the technical field of pressure testing equipment for concrete slabs, in particular to a pressure testing machine for a concrete slab doped with a concrete admixture. The device comprises a rack, a loading mechanism, a sample clamp, a flatness detection device, a grinding device and a measurement and control system. Wherein the loading mechanism drives a loading head to vertically move through a lifting source, the sample clamp is used for clamping a sample, the flatness detection device drives a first flatness detector through a two-dimensional moving assembly to detect the flatness of the surface of the sample, and the polishing device drives a polisher through a three-dimensional moving mechanism to polish the surface of the sample. The measurement and control system is used for collecting and recording test data and controlling actions of all parts. According to the invention, comprehensive and accurate pressure test and flatness detection on the concrete plate doped with the concrete admixture are realized, and the test efficiency and accuracy are improved.

The invention relates to the technical field of vibrating screen mesh welding, and discloses a welding device for vibrating screen mesh machining, which comprises a rack, and a circular metal welding disc is arranged on the rack; the vertical rod is fixed on the top surface of the rack; the lifting seat is arranged on the vertical rod in a lifting manner; the mounting seat is fixed at one end, far away from the vertical rod, of the lifting seat; the rolling welding structure is arranged on the mounting seat, and the rolling welding structure comprises a roll welding module; and the flattening structure is arranged on the mounting seat, and the flattening structure is arranged right opposite to the metal welding disc. By pressing the middle of the screen through the flattening plate and comprehensively flattening the outer edge of the screen through the four flattening plates distributed in the circumferential direction in an array mode, the overall flatness of the screen in the welding process is further guaranteed, and reliable quality guarantee is provided for subsequent use of the screen.

The invention provides a surface cubic-phase-rich functional modified hard alloy and a preparation method, and belongs to the technical field of hard alloy cutter materials. According to the method, tungsten carbide is subjected to yttrium doping treatment, boron-containing titanium carbide and cobalt-molybdenum composite powder are used together, a nitriding sintering process is combined, diffusion and permeation of nitrogen atoms are promoted, the microstructure of the alloy is regulated and controlled, enrichment of a cubic phase on the surface of the alloy is achieved, and the surface-rich cubic phase functional modified hard alloy is obtained; the Vickers hardness and the heat conductivity coefficient of the hard alloy material are effectively improved, and meanwhile the friction coefficient of the material is reduced; the surface layer rich cubic phase of the modified hard alloy material is provided with the functional gradient layer, the binding force of a coating of a tool material prepared from the modified hard alloy material and a matrix can be improved, and therefore the service life of the tool material is prolonged.

The invention belongs to the technical field of chip processing, and discloses a wafer laser cutting device based on chip processing, which comprises a vibration mechanism, the vibration mechanism comprises four sliding blocks, the interiors of the sliding blocks are fixedly connected with first motors, and the first motors are rotatably connected with cams; through cooperation of the cam, the clamping plates and other structures, the laser cutting effect of the wafer is improved, the first motor is started to enable the wafer clamped among the four clamping plates to generate slight vibration in the vertical direction, the slight vibration promotes micro movement of a material in the laser cutting process, better interaction between a laser beam and the material is facilitated, and the laser cutting efficiency is improved. A more uniform and smoother cutting face is achieved, the vibration effect can accelerate the melting or crushing process of materials, the cutting time is shortened, the cutting efficiency is improved, meanwhile, vibration can accelerate airflow on the surface of a wafer, a certain heat dissipation effect is achieved, local overheating of the materials is reduced, expansion of a heat affected zone is avoided, and the flatness of the cutting edge is improved.

The invention relates to the technical field of printing, in particular to a printing process of an anti-puncture flame-retardant label, and the flame-retardant label comprises an anti-puncture base material layer, a flame-retardant layer, a printed pattern layer and an anti-puncture surface layer which are arranged in sequence; the base material layer and the surface layer are attached to the Dupont film through the composite technology, and the firmness and the using effect of the label are improved by means of the anti-puncture performance of the Dupont film. In the printing process, the treatment of the base material layer comprises stretching to ensure the surface flatness, the bonding layer and the adhesive film layer are accurately coated on the base material layer, and the flame-retardant layer is attached on the base material layer, so that the flatness and the structural strength of the base material are effectively improved, and meanwhile, the product is endowed with excellent flame-retardant property; the flame retardant performance and the structural strength are both improved, and a powerful guarantee is provided for product safety.

The invention discloses tea polyphenol component detection equipment for jasmine tea and a detection method thereof. The tea polyphenol component detection equipment comprises a spectrophotometer host, and the lower end of the spectrophotometer host is fixedly connected with a bottom support bin. Through the arrangement of the grinding box and the crushing knife rest, in the use process, jasmine tea needing to be detected is placed in the grinding box, then the pressing frame is assembled, through the pressing frame and second filter cloth, the movable space of the jasmine tea is limited, the jasmine tea is made to be close to the crushing knife rest, and therefore the crushing speed is increased; a solvent is placed in the grinding box, separation of tea polyphenol is accelerated through rotation of the crushing knife rest, meanwhile, sufficient extraction of the tea polyphenol can be guaranteed, the solution is directly filtered through the second filter cloth, the solution is taken out through the suction pipe and placed in the cuvette, then the cuvette is placed in the sample chamber, detection can be conducted, overall use is simple, and the detection efficiency is high. The device can directly measure on site, integrates components required by detection into a whole, and is convenient to carry.

The utility model discloses a wafer carrying table assembly, which comprises a wafer carrying table, a heating sheet and a shielding sheet, the wafer carrying table is provided with an adsorption hole for adsorbing a wafer, the heating sheet is arranged below the wafer carrying table, the shielding sheet is arranged above the heating sheet, the shielding sheet can conduct electricity, and the shielding sheet can shield a magnetic field generated by the heating sheet and shield electromagnetic noise. And the influence of a magnetic field generated by the heating sheet on subsequent wafer processing procedures is avoided.

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a cover plate main body provided with a mounting hole; the pole is arranged in the mounting hole; the riveting piece is riveted with the pole post and then is welded with the pole post; the welding joint of the pole and the riveting piece is filled with the welding filling piece, and the melting point of the welding filling piece is lower than that of the pole and that of the riveting piece. The welding filling piece is filled at the welding joint of the pole and the riveting piece, so that the pole and the riveting piece can be wrapped after the welding filling piece is heated and melted, and the welding strength of the pole and the riveting piece is ensured; the melting point of the welding filling piece is lower than that of the pole and the riveting piece, so that the welding filling piece cannot generate high temperature after being melted, the influence of thermal deformation of the riveting piece is small, the flatness of the riveting piece is effectively improved, the appearance of the welding area of the pole and the riveting piece is improved, the appearance yield of the cell cover plate is improved, and the production cost is reduced. Therefore, the safety and the yield of the battery cell are improved.

The invention provides a woven bag cutting device based on a laser technology and a control method of the woven bag cutting device. The control method comprises the steps that an active traction motor is controlled to pull woven base cloth placed on a base cloth feeding frame; the position of the woven base cloth is detected through a photoelectric sensor, and accurate positioning of the woven base cloth is ensured in cooperation with an EPC automatic deviation rectifying device; a spiral line type transition roller is controlled to preliminarily flatten the woven base cloth to obtain preliminarily flattened woven base cloth; controlling a flattening negative pressure box to adsorb the preliminarily flattened woven base cloth to obtain flattened optimized woven base cloth; controlling a laser cutting group to perform laser cutting on the flattened and optimized woven base cloth to obtain laser-cut woven base cloth; and controlling a buffer transition roller to convey the woven base cloth subjected to laser cutting.

The invention provides a neodymium-iron-boron magnet surface treatment method and a neodymium-iron-boron magnet, and belongs to the technical field of rare earth permanent magnet material preparation. The surface treatment method comprises the steps that a to-be-electroplated magnet with the clean and rough surface is prepared; connecting with a power supply, soaking in a plating solution, and forming a corrosion-resistant plating layer on the surface of the to-be-electroplated magnet through an ion exchange electrodeposition method; wherein the ion exchange electrodeposition method comprises a first stage of synchronously applying a constant magnetic field and a variable-frequency electric field and a second stage of synchronously applying a rotating magnetic field and a variable-frequency electric field, the intensity of the constant magnetic field and the rotating magnetic field is 1000-3000 gs, and the rotating speed of the rotating magnetic field is 20-100 rpm / min. According to the neodymium-iron-boron magnet surface treatment method provided by the invention, a variable-frequency electric field and magnetic field synergistic enhanced ion exchange deposition technology is adopted to improve the deposition efficiency and corrosion resistance of a plating layer, and the neodymium-iron-boron magnet with an excellent corrosion resistance effect is efficiently prepared.

The invention belongs to the technical field of composite non-woven fabric bag production and detection, and provides a composite non-woven fabric bag production water and air permeability detection device which comprises a detection box, a fixing sleeve is fixedly arranged in the detection box, and a lifting seat is arranged on the inner end face of the detection box around the fixing sleeve in a rectangular mode. The lifting seats are fixedly connected with telescopic first electric telescopic seats, the telescopic ends of the first electric telescopic seats are connected with guide rails, the guide rails are slidably connected with a plurality of first electric telescopic seats, and the positioning mechanism can clamp and fix the composite non-woven fabric bag. According to the invention, when the air pressure in the detection tank is increased, the volume in the detection tank is increased through the adjusting assembly, so that the air pressures in all the detection tanks are always kept consistent in the detection process, and the permeation amount of water flow or air flow in the detection tank is judged by observing the change of the volume of the detection tank.

The invention discloses a preparation method of a semiconductor structure, and belongs to the technical field of semiconductors. The preparation method at least comprises the following steps: providing a substrate; sequentially forming a pad oxide layer, an intermediate material layer and a pad nitride layer on the substrate; etching the pad nitride layer, the intermediate material layer, the pad oxide layer and the substrate to form a shallow trench, and forming an insulating medium layer in the shallow trench until the insulating medium layer in the shallow trench protrudes out of the pad nitride layer; planarizing the insulating dielectric layer until the pad nitride layer is exposed; performing oxidation treatment on the intermediate material layer to obtain an oxidized material layer; etching to remove the pad nitride layer; and planarizing the oxide material layer and the insulating medium layer. Through the preparation method of the semiconductor structure provided by the invention, dish-shaped recesses can be prevented from appearing on the surface of the shallow trench isolation structure, and the flatness of the surface of the shallow trench isolation structure is improved.

The invention belongs to the technical field of coatings, and discloses an anti-yellowing and high-hardness UV (ultraviolet) laminating varnish as well as a preparation method and application thereof. The UV film coating varnish comprises six-functionality alicyclic polyurethane acrylic resin, two-functionality linear polyurethane acrylic resin, pure acrylic resin, an acrylate reactive diluent, a filler, an ultraviolet light absorber, a non-alkaline hindered amine free radical scavenger and a photoinitiator. The weight ratio of the six-functionality alicyclic polyurethane acrylic resin to the two-functionality linear polyurethane acrylic resin to the pure acrylic resin to the acrylate reactive diluent is (2.5-3.5): (1-1.5): 0.5: (2.0-3.0); the bifunctional linear polyurethane acrylic resin is prepared from the following raw materials: isocyanate, poly (1, 4-butanediol) and hydroxyethyl acrylate. A paint film formed by the UV film-coated varnish has good yellowing resistance and high hardness, and is not easy to crack after thermal cycling.

The invention discloses a manufacturing method for filling holes in a glass substrate by using conductive copper paste, which comprises the following steps of: taking the glass substrate as a base material layer, and generating through holes through a glass drilling process; generating a copper seed layer on the surface of the base material layer and the inner wall of the through hole by using PVD equipment; depositing copper atoms on the copper seed layer by using a copper electroplating process, and increasing the thickness of the copper seed layer on the surface of the base material layer and the inner wall of the through hole; filling conductive copper paste in the through hole by using a vacuum hole plugging process; flattening the copper seed layer on the surface of the base material layer and the protruding conductive copper paste by using CMP (Chemical Mechanical Polishing) equipment in a chemical micro-etching and mechanical grinding mode; and manufacturing a circuit pattern layer on the surface of the base material layer through a circuit layer reduction method. The conductive copper paste is plugged into the through hole through the vacuum hole plugging equipment to be used for manufacturing the conductive hole or the heat dissipation hole, and compared with an electroplating hole filling operation mode, the vacuum hole plugging equipment can be applied to the through holes of different shapes and sizes.

The invention belongs to the technical field of additive manufacturing, and particularly relates to an additive manufacturing method of an ultrahigh-strength steel-stainless steel interlayer heterogeneous structural part. Comprising the following steps that (1) a model is obtained, and an additive model is designed according to performance requirements needed by a structural part; (2) additive preparation is conducted, specifically, the type and specification of a base plate are selected, mechanical grinding and welding wire filling are conducted on the base plate, an additive path is planned according to the model, and a robot walking program is written; and (3) material adding is started, the optimal technological parameters are matched according to the planned material adding path, and material adding of the structural part is started and completed. The ultrahigh-strength steel-stainless steel heterostructure part obtained through the method has the excellent strength-toughness comprehensive mechanical property, the material adding efficiency is high, the interface of the ultrahigh-strength steel-stainless steel heterostructure part is free of the defects of holes, microcracks, unbonding and the like, and the surface quality is excellent.

The invention discloses a large-diameter high-pressure flange and production equipment and method, and belongs to the technical field of flange machining equipment.The large-diameter high-pressure flange comprises a flange plate, a boss is arranged on one end face of the flange plate, a sealing groove is formed in the end face, away from the boss, of the flange plate, and a magnetic attraction groove is further formed in the end face, away from the boss, of the flange plate; the magnetic grooves are filled with magnetic layers, the sides, away from the magnetic grooves, of the magnetic layers are flush with the end face of the flange plate, and evenly-distributed mounting holes are further formed in the outer side wall, close to the outer edge, of the flange plate. According to the production equipment, the functions of automatic clamping of the flange and spraying machining of the magnetic coating can be achieved, compared with manual work, the production efficiency is greatly improved, the machining stability is high, meanwhile, the equipment can meet the production and machining requirements of flanges of different sizes, and the applicability is high.