66results about How to "Control Uniformity" patented technology

The invention relates to an influence matrix-based arch bridge cable-stayed buckle hanging buckle cable force multi-target data processing method and a multi-target optimization system thereof. The method comprises the following steps: establishing a finite element model, and correcting the model according to a construction sequence; extracting a plurality of correlation influence matrixes, wherein the influence matrixes comprise a displacement influence matrix, a cable force influence matrix and an internal force influence matrix; on the basis of a superposition principle, according to the obtained multiple correlation influence matrixes, obtaining an influence matrix relation, and then obtaining initial tension vectors of the buckle cables; and determining a plurality of corresponding constraint conditions based on an optimization theory, establishing an initial cable force multi-objective optimization model of a variable load, and calculating cable force value parameters of a buckle back cable of the cable-stayed buckle-hanging construction arch bridge. According to the method, the axial force of the arch rib rod piece and the arch rib line shape in the cable-stayed buckling construction process of the large-span arch bridge can be effectively controlled, and the optimal arch line shape and the stable stress state of the arch ring of the bridge are achieved.

The embodiment of the invention discloses a preparation method of a europium-barium-copper oxide superconducting sputtering target material, which comprises the following steps: mixing europium oxide powder, barium carbonate powder and barium oxide powder according to a set proportion, and then mixing with a dispersing agent and water to obtain first europium-barium-copper oxide slurry; carrying out spray granulation on the first europium-barium-copper oxide slurry to obtain first mixed powder; calcining the first mixed powder, and mixing the calcined first mixed powder with a dispersant, a binder and water to obtain second europium barium copper oxide slurry; performing spray granulation on the second europium-barium-copper oxide slurry to obtain second mixed powder; carrying out compression molding-cold isostatic pressing on the second mixed powder to obtain a europium-barium-copper oxide target material biscuit; wherein the mold pressing pressure ranges from 3 MPa to 6 MPa, and the cold isostatic pressing pressure ranges from 100 MPa to 250 MPa; the europium-barium-copper oxide target material biscuit is subjected to degreasing and sintering integrated treatment, and the europium-barium-copper oxide superconducting sputtering target material is obtained; the relative density of the europium barium copper oxide superconducting sputtering target material is as high as 97.98%, and the bulk resistivity is as low as 1.98 m omega.cm.

The invention mainly relates to the technical field of high-performance ceramic filler nano titanium dioxide, and discloses a preparation method of high-dispersion nano titanium dioxide, which comprises the following steps: slowly dropwise adding a pretreated titanium source into a mixed solvent to prepare a titanium source solution; the preparation method comprises the following steps: adding water and a mixed inhibitor into a reaction kettle, uniformly stirring, slowly dropwise adding the prepared titanium source solution into the reaction kettle, and continuously stirring in the dropwise adding process; cooling the product to room temperature, adding a dispersing agent, aging for a period of time, and slowly adding nano silicon dioxide sol; washing the aged product, and then carrying out vacuum drying treatment; and calcining the dried product at 300-350 DEG C for 1-1.5 hours, then heating to 480-550 DEG C, calcining for 2-2.5 hours, and controlling the heating rate to be 1.5-2 DEG C / min, thereby obtaining the nano titanium dioxide product with uniform granularity and high dispersity after calcining. According to the invention, through optimization of the preparation process, the particle size of the nano titanium dioxide is in a small range, and good particle size uniformity and dispersibility are still kept.

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

The invention discloses a process for preparing a lithium alloy negative electrode for a solid-state battery through an electro-deposition method, and relates to the field of lithium alloy negative electrode piece preparation, the process comprises the following steps: S1, firstly, a lithium piece and a deposition metal piece are respectively fixed in an electro-deposition device, the lithium piece is connected with an anode of an external power supply, and the deposition metal piece is connected with a cathode of the external power supply; according to the process for preparing the lithium alloy negative electrode for the solid-state battery through the electro-deposition method, a deposited metal sheet is immersed into lithium-containing electro-deposition liquid for electro-deposition treatment, and the lithium content in the lithium alloy negative electrode and the surface morphology of the electrode are controlled by controlling the current density, the deposition time and the electro-deposition process; the lithium alloy negative electrode prepared by the method can achieve the purpose of accurately controlling the lithium loading amount in the negative electrode and the bulk phase uniformity of the lithium alloy, an all-solid-state battery assembled by using the alloy prepared by the process as the negative electrode shows excellent electrochemical performance, and the process method is simple, efficient, low in cost and suitable for large-scale continuous preparation.

The invention discloses an iron-based MOFs composite electrode and application thereof. The preparation method comprises the following steps: firstly preparing Cu-coated Fe-ZIF powder in a coprecipitation manner, then preparing Fe2O3-coated Cu-coated Fe-ZIF powder by a hydrothermal reaction, step-by-step ultrasonic and vacuum arc method, and then fusing with S at high temperature by a hot melting method; and preparing the active material Fe2O3 (at) Cu (at) Fe-ZIF (at) S for the iron-based MOFs composite electrode. The Fe-ZIF material is selected as a metal frame to coat the surface of Cu, the Fe-ZIF material and Fe oxide are mixed, calcined and subjected to a direct-current vacuum arc method to synthesize the wooden-stick-shaped nanosphere particles, the defect concentration in a Fe2O3 structure can be effectively increased under the synergistic effect of the advantages of Cu-coated Fe-ZIF components, more loading space is provided for subsequent components such as sulfur, and the Fe-coated Fe-ZIF composite material has a good application prospect. The sulfur loading effect is improved, the sulfur utilization rate is improved, the volume change is relieved, and the battery performance is further improved.

The utility model belongs to the technical field of mold demolding, and particularly relates to an adjustable spraying device and industrial mold demolding equipment. The spraying device comprises a fixed support and a spray head body, a plurality of longitudinal guide columns are vertically fixed in the fixed support, a plurality of transverse guide columns are arranged on the longitudinal guide columns in a staggered mode, and the transverse guide columns and the longitudinal guide columns are each sleeved with a plurality of mounting rods; one side of the mounting rod is in threaded connection with a fixing screw and is fixed on the transverse guide column and the longitudinal guide column through the fixing screw, and the other side of the mounting rod is in threaded connection with one end of the spray head body. The number of the spray head bodies can be freely adjusted according to the actual size of a mold, so that the spray head bodies are more flexible and variable in installation, the angles of the spray head bodies can be freely adjusted according to a special-shaped cavity of the mold, the spraying uniformity of a release agent is accurately controlled, the quality of produced products is guaranteed, and the production efficiency is improved. And the technical requirements of industrial mold demolding are met.

The invention discloses a soil matrix preparation device for ecological remediation and relates to the technical field of ecological soil remediation. An isolation heat preservation barrel is fixed to the top end of an integration bearing frame, the inner side of the isolation heat preservation barrel is sleeved with a treatment integration barrel, an integration motor is installed at one end of the treatment integration barrel through a motor base, and a porous integration frame is fixed to one end of an output shaft of the integration motor; a plurality of lower discharging mixing pipes are connected to the bottom of the side end of the treatment integration barrel at equal intervals in a penetrating mode, an integration laying barrel is connected to the inner side of the fixed inlet and outlet barrel in a sleeving mode, and a mixing motor is installed at one end of the integration laying barrel through a motor base. In addition, through internal and external heat exchange and multi-group heat cycle treatment, stable temperature control is achieved, meanwhile, the situation that the compost fermentation process is affected due to the fact that the material temperature is too low is reduced, and therefore the production efficiency of the soil matrix and the product quality are guaranteed.

The invention discloses a preparation method and application of a NiFe2O4 / ZIF-8 catalyst based on spatio-temporal gradient assembly.The preparation method comprises the steps that NiFe2O4 nanoparticles are evenly distributed in ZIF-8 growth through a spatio-temporal gradient assemblystrategy in combination with the dynamic response characteristic of an inducer to temperature and a synchronous regulation and control technology, and a NiFe2O4 / ZIF-8 precursor is formed; and transferring the precursor into a quartz boat, and carrying out pyrolysis in a tubular furnace under the protection of nitrogen, hydrogen and helium mixed gas to finally obtain the uniformly distributed NiFe2O4 / ZIF-8 catalyst. The NiFe2O4 / ZIF-8 catalyst prepared by the method can replace a noble metal catalyst which is high in cost and scarce in resource, and has a wide application prospect in the fields of energy storage and conversion such as electro-catalytic oxygen reduction reaction and zinc-air batteries.

The invention discloses a counter-pressing plate electroplating copper thickness control method, system and device and a medium. The method comprises the following steps that a depth image of a target electroplating hole in a target counter-pressing plate is obtained; according to the depth image, obtaining the measurement depth h of the target electroplating hole so as to obtain the measurement thickness h'of the electroplating copper layer; judging whether the measured thickness h'is within a preset theoretical thickness range or not; wherein the theoretical thickness is a range value; if not, acquiring copper thickness compensation data of the electroplating copper layer, and returning to acquiring the depth image of the target electroplating hole in the target counter-pressing plate until the measured thickness h'is within the theoretical thickness range; if yes, obtaining the thickness uniformity of the electroplating copper layer; judging whether the thickness uniformity meets a qualified standard or not; if not, acquiring copper thickness adjustment data of the electroplating copper layer, and returning to acquiring the thickness uniformity of the electroplating copper layer until the thickness uniformity meets the qualified standard; the method has the advantage that the control accuracy of the copper thickness of the pressing plate is improved.

The utility model discloses a wheat seed tedding device which comprises a tedding device, the upper end of the tedding device is connected with a seed spreading device, the upper end of the spreading device is provided with a seed storage hopper, the lower end of one side of the seed storage hopper is provided with a seed spreading plate, the lower side of the front end of the seed spreading device is provided with moving wheels, and the tedding device comprises a cover. The upper end of the cover is fixedly connected with a fixing frame, one side end of the cover is fixedly connected with a rotating motor, the cover is internally provided with a stirring roller, and blades are uniformly arranged on the outer side of the stirring roller in a circle at equal intervals. Seeds can be evenly distributed in the sowing process, the control device on the main body supporting frame can effectively control the sowing speed and density of the seeds, the movable baffle can effectively control the sowing range of the seeds, and the seeds are prevented from being sown to unwanted areas.

The invention discloses an evaporation magnetron sputtering target system for the inner wall of a special-shaped cavity, and relates to the field of high-energy pulse magnetron sputtering for sputtering coating of the inner wall of a superconducting acceleration cavity. The device comprises a vacuum mechanism suitable for loading a superconducting acceleration cavity, a magnetron sputtering target mechanism arranged in an inner cavity of the superconducting acceleration cavity, and a driving mechanism connected with the magnetron sputtering target mechanism. According to the invention, the lifting of the annular target material in the inner cavity of the superconducting acceleration cavity is realized, so that plasmas can discharge in a specified area in the inner cavity of the superconducting acceleration cavity to finish the coating of a corresponding area, and meanwhile, the power of a negative electrode power supply and the sputtering time of the annular target material can be controlled to realize uniform coating; the uniformity and the adhesion of the thickness of the thin film are favorably controlled; in addition, the driving mechanism has a large-stroke moving range, and the requirement for thin film evaporation of the multi-cell superconducting acceleration cavity can be met.

The application provides a high-porosity Raney nickel electrode and a preparation method thereof, and relates to the technical field of Raney nickel electrodes and preparation thereof. The preparation method of the high-porosity Raney nickel electrode effectively controls the dealuminization rate and the pore uniformity through a preparation process of'sintering treatment + special electrochemical dealloying treatment', and stably prepares the high-porosity Raney nickel electrode. A new process for preparing the high-porosity Raney nickel electrode in an environmentally friendly manner is provided, which replaces the traditional corrosion pore-forming process of a strong alkaline chemical solution and reduces pollution. The prepared high-porosity Raney nickel electrode has a high porosity of up to 52%, and the pore structure is stable, so that the catalytic activity and mechanical stability of the electrode are effectively improved.

The utility model relates to the technical field of isomagnetic earphones, in particular to a sounding unit based on a flat diaphragm, which comprises two magnet pole plates, isometric planar diaphragms are arranged between the two magnet pole plates in parallel, and the planar diaphragms are soft and hard composite layers with sandwich structures. The vibrating diaphragm is made of the soft and hard composite layer with the sandwich structure, so that the thickness and the uniformity of the vibrating diaphragm can be controlled to improve the yield of the vibrating diaphragm and reduce the production cost, the transduction efficiency of the planar vibrating diaphragm can be improved, and the sensitivity of the earphone can be improved.

The application discloses a 3D-printable all-inorganic perovskite flexible light-emitting gel and a preparation method and application thereof, and relates to the technical field of perovskite. The method comprises the following steps: dissolving cesium bromide in water to obtain a cesium bromide aqueous solution; adding photo-curing precursor components into the cesium bromide aqueous solution in a certain proportion, and stirring uniformly to obtain a photo-curing precursor mixed solution; obtaining a photo-curing composite hydrogel; obtaining a flexible high polymer gel containing cesium bromide; and performing a spontaneous crystallization reaction, and then performing heat treatment on the gel to remove residual solvents. The perovskite precursors with large solubility difference are introduced into the photo-curing base material in two steps, respectively, so that the compatibility problem of the perovskite and the flexible base material precursor is solved.

The utility model provides fixed-point uniform glue spraying equipment, belongs to the field of glue spraying of rain shoes, and aims to solve the problem that the glue spraying uniformity and the thickness are difficult to regulate and control, so that the glue spraying uniformity is limited. Hydraulic cylinders are fixedly installed in the middles of the tops of the left side and the right side of the equipment main frame, a lifting frame is fixedly connected to the bottoms of the hydraulic cylinders, a driving motor is fixedly installed in the middle of the top of the lifting frame, a glue spraying head is fixedly installed in the middle of the bottom of the lifting frame, and sliding check blocks are slidably connected to the left side and the right side of the glue spraying head. A grinding roller is rotationally connected to the bottom of the rear side of the lifting frame, and a glue collecting groove is inserted into the lifting frame on the rear side of the grinding roller; according to the fixed-point uniform glue spraying equipment, the meshing position of the driving rack is controlled through the driving gear, so that the two sliding stop blocks can be controlled to slide at the bottom of the glue spraying head, the glue spraying width of the bottom of the glue spraying head is adjusted, and the bottom of the glue spraying head can be adjusted according to the width of a shoe sole.

The present application relates to the technical field of thermal protection layer forming, and particularly relates to a composite material solid rocket engine heat insulation layer 3D printing system and an operating method. The printing system comprises a feeding system and a mechanical arm system. The feeding system further comprises a storage device, a mixing device and a hydraulic device. The mixing device is connected to the storage device through a pipeline. The hydraulic device delivers the heat insulation material in the storage device to the mixing device through the pipeline. The mechanical arm system further comprises a mechanical arm and a control unit. The head of the mechanical arm is provided with the mixing device and a printing head. The mixing device is connected to the printing head. The control unit has a heat insulation layer model slicing function and controls the movement of the mechanical arm and the printing of the printing head. The head of the mechanical arm is further provided with a curing device and a thickness measuring device. The thickness measuring device can measure the thickness of the heat insulation structure. The mechanical arm system automatically adjusts the process parameters according to the measurement results, and continues to print the areas whose thickness does not meet the requirements, thereby fully guaranteeing the printing effect and improving the reliability of the heat insulation layer.

The utility model discloses a vacuum coating device for optical lenses, which relates to the technical field of lens coating devices and comprises a machine body and a vacuum chamber, the vacuum chamber is mounted on the inner side of the machine body, an assembly part and a coating main body are arranged on the inner side of the machine body, the coating main body is positioned at the top of the assembly part, and the assembly part comprises a turn-over component. The turn-over assembly comprises a lens frame, the lens frame is arranged on the inner side of the vacuum chamber, double-shaft motors are fixedly installed on the two sides of the lens frame, output shafts of the double-shaft motors are connected with driving wheels, and lens rings are further arranged on the two sides of the double-shaft motors. According to the vacuum coating device for the optical lens, the lens ring and the driving wheel rotate in the opposite direction, so that the lenses on the lens ring in the lens frame rotate, the number of deposited films on the lenses is the same, the thickness of the films is more uniform, and the output shaft of the servo motor drives the main rotating shaft to rotate; and the lens frames on the main rotating shaft are kept rotating synchronously, so that the lens coating effect is ensured.

The application discloses a feed mechanical pipeline conveying device and relates to the field of feed production and conveying, which comprises a conveying pipeline and a conveying auger. The conveying pipeline comprises fixed pipes and movable pipes. The fixed pipes and the movable pipes are alternately distributed and coaxially arranged. At least one movable pipe is arranged. Two adjacent fixed pipes are connected through a connecting piece and coaxially arranged. Both ends of the conveying pipeline are fixed pipes, which are connected with a feeding bin and a discharging bin of the conveying pipeline, respectively. The movable pipe is connected with a rotating piece. When the conveying auger rotates, the conveying speed of materials at the movable pipe is changed through the rotation of the movable pipe. Through the arrangement of the movable pipe, the rotation speed of the main auger does not need to be changed. The material flow speed is accelerated or slowed down at the fixed pipes and the movable pipes. The movable pipe is arranged at the easy-blocking point and reversely rotates, the material advancing force of the area is enhanced, the blockage is effectively dredged or prevented, the movable pipe is arranged at the area needing buffering and rotates with the auger in the same direction, the material flow speed of the area is reduced, the buffering effect is achieved, and energy consumption is further reduced.

The invention relates to the field of sealant spraying, in particular to a self-spraying type sealant spraying device which comprises a shell, a spraying device body and a spraying device body. The grip is fixed on the lower surface of the right end of the shell; the spraying part is detachably connected to the left end of the shell; the air injection part is detachably connected to the lower surface of the left end of the shell, and the air injection part communicates with the spraying part; the storage part is detachably connected to the right end of the shell and located above the grip; the storage battery is detachably connected to the bottom end of the grip; and the control unit is detachably connected to the grip, the control unit is electrically connected with the air injection part, the material storage part and the storage battery, and the control unit can control the air injection part and the material storage part to act. Due to the adoption of the adapter and the spray head, the problem of mouth shearing of a traditional spray head is effectively solved, and then the purpose of adapting to different gluing modes by replacing spray heads of different structures is achieved.

This invention provides a chemically strengthened glass-ceramic and its preparation. The chemically strengthened glass-ceramic includes a glass-ceramic substrate and a compressive stress layer formed on the surface of the substrate through ion exchange chemical strengthening. The glass-ceramic substrate comprises crystal family 1 and crystal family 2. Crystal family 1 includes crystals having the following structural formula: (Zn x Mg 1‑x‑y Al 2‑2y (Al) 2y Mg y O4, wherein: 0≤x≤1; 0≤y≤1; and 0≤x+y≤1; the crystal group 2 includes zirconium oxide; the compressive stress layer has a CTLD_saf value of 15000~70000 MPa. Compared with the existing LAS microcrystalline glass system, the chemically strengthened microcrystalline glass of the present invention not only has excellent mechanical properties and impact resistance, but also significantly reduces the overall cost.

A substrate processing method includes a substrate loading operation of loading a substrate into a processing space provided by a body; a heating operation of placing the substrate loaded in the processing space on a heating tray and heating the substrate; and an atmosphere changing operation that changes an atmosphere of the processing space, in which the atmosphere changing operation includes: a gas discharging operation that injects an atmosphere changing gas in a state in which the substrate is positioned closer to the baffle plate than the heating operation, in which the baffle plate is disposed on a top side of the heating tray to face the heating tray and inject the atmosphere changing gas; and a substrate lowering operation that maintains injection of the atmosphere changing gas while lowering and placing the substrate on the heating tray.

The utility model relates to the technical field of boiler pulverized coal conveying devices, and discloses a pulverized coal temporary storage and conveying device which comprises a tank body, a feeding pipe is arranged on the upper portion of the tank body, a charging pipe is arranged on the side edge of the feeding pipe, a feeding rod is rotationally arranged in the feeding pipe, a feeding screw is arranged on the upper portion of the feeding rod, and the feeding screw extends into the tank body; the rotary feeder is arranged at the bottom of the tank body, and the rotary feeder is communicated with the bottom of the tank body; the conveying pipe is arranged at the bottom of the rotary feeder, and the conveying pipe is communicated with the rotary feeder. According to the technical scheme, the rotary feeder composed of the shell, the feeding shaft and the feeding plates can prevent gas in the conveying pipe from entering the tank body while pulverized coal is conveyed, and the gap space between the feeding plates can be adjusted through the limiting blocks between the feeding plates, so that the amount of the pulverized coal entering the feeding plates can be controlled; therefore, the conveying amount and the uniformity of the pulverized coal can be controlled.

The invention relates to the technical field of steel smelting, in particular to free-cutting steel casting powder and application thereof, and the free-cutting steel casting powder contains F, CaO, SiO2, Al2O3, MgO, R2O and C; wherein the mass fraction of the F is 3%-4%; the mass fraction of the CaO is 20%; the mass fraction of the SiO2 is 30%; the mass fraction of Al2O3 is 15%; the mass fraction of MgO is 5%; the mass fraction of the R2O is 6%; the R2O is Na2O and / or K2O. According to the free-cutting steel casting powder, the viscosity of the casting powder is improved, so that the flowing uniformity of casting powder liquid slag is controlled, and the heat transfer effect of the casting powder is improved; further, by increasing the F <-> content in the casting powder, the thermal resistance of the casting powder is improved, the crystallization performance is enhanced, heat transfer between an initial blank shell and a copper cooling wall in a crystallizer is weakened, and the purpose of weak cooling is achieved; meanwhile, the melting point of the casting powder is increased, and the melting speed is reduced, so that the casting powder has a proper melting structure. After the free-cutting steel casting powder is adopted, the surface quality of a produced free-cutting steel continuous casting blank is good, the surface defects of the casting blank are effectively avoided, and the product quality is improved.

The application relates to the field of rocket launching, and particularly discloses a synchronous erecting control method for multiple hydraulic cylinders, which comprises a simulation calculation process; a control system discriminates and operates the values of strain flowers A and the values of strain flowers B; the difference range epsilon threshold of the values of strain flowers A and the values of strain flowers B in the same group of erecting oil cylinders in the control system is measured 实测1 , epsilon 实测2 , epsilon 实测N / 2 , epsilon 实测1 , epsilon 实测2 , epsilon 实测N / 2 When the measured absolute value is greater than the epsilon threshold, the control system automatically and real-timely feeds back and controls the erecting oil cylinder. The scheme directly monitors the deformation and stress conditions of the left and right sides of the final erecting arm, and most truly reflects the erecting arm state, and is applicable to different mass center offset errors of different missile types without the need of re-adjustment, so that the adjustment efficiency is improved.

This invention provides a triboelectric nanogenerator and its fabrication method. The generator operates in a vertical contact-separation mode, with a positive friction layer of PET film and a negative friction layer of PDMS composite film with a single layer of dense SiO₂ microspheres inserted on its surface. The fabrication process employs a two-step spin-coating method: first, a PDMS solution is spin-coated onto a substrate; then, a suspension of SiO₂ microspheres is spin-coated onto the uncured surface. After heating and curing, a composite negative friction layer is formed, which is then assembled with electrodes and a support structure. This invention significantly increases the triboelectric contact area and enhances charge trapping capability by constructing the SiO₂ microsphere insertion layer, thereby greatly improving output performance. Furthermore, the fabrication process is simple and low-cost, making it suitable for powering microelectronic devices and self-powered sensing applications.

The invention discloses a laser additive manufacturing method and system for a gradient refractive index glass material, and belongs to the field of additive manufacturing. According to the method, laser is used for bombarding a target glass material to generate micro powder, the micro powder is directionally drained and deposited to a glass substrate, a micro powder deposition layer is sintered through laser to form a glass thin layer, and the steps are repeated, so that the gradient glass material with specific refractive index distribution is finally obtained by switching the target glass material, adjusting the deposition thickness and changing the laser sintering path. According to the method, layer-by-layer deposition of micro powder generated by laser bombardment of the target material is innovatively adopted to replace powder laying of a powder laying roller in a traditional laser additive manufacturing method, so that the particle size is reduced, and meanwhile, the problems of powder agglomeration and powder grading are effectively solved. Compared with traditional homogeneous glass, the method has the advantages that various specific glass components can be macroscopically stored in the glass in a required distribution form, a gradient refractive index glass material is formed, and the method can also be used for manufacturing sandwich structure glass materials and other multi-element heterogeneous glass materials with specific distribution in two-dimensional or three-dimensional dimensions. The preparation method of the multi-element heterogeneous material endows the glass material with more application prospects in the fields of optical lenses, anti-counterfeiting, optical storage and the like.

The present invention relates to a sand core clamp with full situational awareness, including a support frame, a swing frame, a swing driving member and a clamping member, wherein the swing driving member is arranged on the support frame, the swing frame is movably connected to the support frame, the swing driving member is transmission-connected to the swing frame and is used to drive the swing frame to swing, the swing frame includes a top beam and two clamping arms arranged oppositely, the clamping member is arranged on the two clamping arms arranged oppositely and is used to clamp the sand core, a force sensor for detecting the clamping force is arranged on the two clamping arms arranged oppositely of the swing frame, a visual sensor for detecting the appearance coating state of the sand core and the target position of the sand core is arranged on one side of the top beam of the swing frame, a data communication interface for data communication with a controller is arranged on the support frame, and the force sensor and the visual sensor are electrically connected to the data communication interface. The implementation of the present invention can ensure the quality of the sand core dip coating while improving production efficiency.