54 results about "Ceramic insulators" patented technology

The utility model relates to the technical field of medical disinfection equipment, in particular to a plasma electric field generator with a double-layer protection function, which comprises a reaction cavity frame, four preformed holes which are vertically symmetrical are formed in the left part and the right part of the reaction cavity frame and are used for circuit connection, and 11 dust collection plates are connected between the front part and the rear part of the reaction cavity frame. 10 groups of corona electrodes which are symmetrical up and down are connected between the front part and the rear part of the reaction cavity frame, each group comprises two pieces, and the corona electrodes on the upper layer and the lower layer are arranged at equal intervals. The utility model provides a gradient double-layer protection structure, through differentiated material combination and space reconstruction, while the compactness of equipment is maintained, the insulation effect of a ceramic insulator is realized, the phenomena of current leakage and short circuit are effectively prevented, a physical isolation space reserved between layers can effectively block a breakdown arc diffusion path, and the service life of the equipment is prolonged. In addition, the shell forms final safety redundancy, and continuous and safe operation of equipment is ensured.

The application discloses a flash connecting method of ceramic insulators, which comprises the following steps: abutting the joint surfaces of the ceramic insulators coated with conductive colloid; abutting the conductive rings against the joint surfaces of the ceramic insulators; applying super high voltage or super high current to the conductive rings to force the conductive colloid to conduct electricity and cause the flash connection of the ceramic insulators; cutting off the power supply; and removing the conductive rings after the ceramic insulators are cooled to room temperature. By abutting the conductive rings against the joint surfaces of the two insulators, the super high voltage or super high current of the super capacitor is used to heat the conductive colloid on the joint surfaces of the insulators, so that the mass transfer effect of the insulators on the two sides is caused, and the instant flash connection is realized. The connecting temperature is significantly reduced, and the connecting time is shortened. The two ceramic insulators can be connected in seconds by using the method, the energy consumption can be reduced by using the super capacitor, and the application can be widely applied to the field of super large size power porcelain.

The application belongs to the technical field of insulator assembly and manufacturing, and particularly relates to a ceramic insulator automatic pin insertion machine and a working method thereof. The space between two adjacent insulators is limited, which leads to inconvenient pin insertion. The two insulators need to be spread apart by an assembler during pin insertion, which affects the pin insertion efficiency. Meanwhile, the insufficient operation space may cause damage to the insulators during assembly. The following scheme is proposed, which comprises a pin insertion base provided with two installation side plates. The ceramic insulator automatic pin insertion machine and the working method thereof have the effect of improving the pin insertion assembly efficiency of the ceramic insulator string. During the pin insertion connection of the ceramic insulator, the device can spread one of the adjacent insulators to one side to increase the operation space during pin insertion. Meanwhile, the device does not need to be assisted by an assembler, which increases the use effect of the device. Moreover, the increase of the operation space can also avoid damage to the insulators during assembly.

The utility model relates to the technical field of insulators, and provides an assembled electric porcelain insulator, which comprises a plurality of groups of mutually matched ceramic insulators and connecting rods, the connecting rods are arranged at the lower ends of the ceramic insulators, the bottom ends of the connecting rods are fixedly connected with chucks, the top ends of the ceramic insulators are internally provided with mounting cavities, and the mounting cavities are fixedly connected with the chucks. A clamping cavity is formed in the middle of the mounting cavity, three evenly-distributed sliding grooves are formed in the periphery of the mounting cavity, sliding clamping plates are slidably connected into the sliding grooves, sliding pins are fixedly connected to the rear ends of the sliding clamping plates, a rotating disc is rotatably connected to the top end of the mounting cavity, and arc-shaped guide grooves are formed in the positions, corresponding to the sliding pins, of the rotating disc. The sliding pins are slidably connected into the arc-shaped guide grooves corresponding to the sliding pins. According to the utility model, the operation is simple and fast during connection, installation and disassembly, and the installation time and labor cost can be reduced.

An internally grounded filter feedthrough having a filter capacitor connected to a feedthrough is described. The feedthrough comprises an insulator having an active conductive pathway extending to its device and body fluid sides, and a ground conductive pathway extending part-way through the insulator thickness from the insulator device side. An undercut extending into the insulator sidewall communicates with the ground conductive pathway but does not extend to the insulator device or body fluid sides or to the active conductive pathway. A braze seals the insulator sidewall to the ferrule and extends into the undercut so that the braze contacts the ground conductive pathway. That way, the braze provides a ground electrical path from a capacitor ground via to the ground conductive pathway in the insulator connected to the braze sealed to the ferrule.

The present disclosure relates to a pod propulsion unit. A pod propulsion unit 1 is proposed comprising: a housing (2); a support arm (3); a propeller shaft (5) rotatably supported within the housing by at least a first bearing arrangement (6) having a first bearing housing (7); a first fastening arrangement (11) for fastening the first bearing housing (7) to the housing (2). The first bearing housing (7) and the housing (2) are spaced apart from each other by a first electrically insulating arrangement (13) arranged between the first bearing housing (7) and the housing (2) and configured to electrically insulate the first bearing housing (7) from the housing (2). The first electrically insulating arrangement (13) comprises a first ceramic insulator (42) and the first ceramic insulator (42) contacts the first bearing housing (7) and the housing (2) so as to space the first bearing housing (7) and the housing (2) apart from each other.

The utility model relates to the technical field of polishing equipment, in particular to an electroceramic insulator surface polishing device which comprises a replaceable polishing head used for polishing the surface of an electroceramic insulator and a handheld rod, a polishing motor is embedded in the center of one end of the handheld rod, and a storage battery providing electric energy for the polishing motor is installed in the handheld rod. The replaceable polishing head is matched with the positioning ring sleeves at the two ends and the mounting screw holes and the mounting bolts on the inserting shafts, so that the polishing head can be conveniently mounted and dismounted, and polishing heads of different specifications or abraded polishing heads can be conveniently replaced; a polishing motor and a storage battery are embedded in a handheld rod, so that the whole device is convenient to hold and operate and has independent electric energy supply, and an external power supply is not needed; the rotating operation of the polishing head is conveniently controlled through the control switch; and the output end of the polishing motor is connected with the rotating shaft and then connected with the inserting shaft, finally, the replaceable polishing head is driven to rotate, and efficient polishing operation on the surface of the electric porcelain insulator is achieved.

This invention discloses a non-destructive testing device for the electrical performance of tubular and shell assemblies, belonging to the technical field of electrical performance testing for tubular and shell assemblies. The device includes a button-type testing module and a PCB (Printed Circuit Board). The button-type testing module is used to achieve a non-destructive, solderless electrical connection between the PCB and the tubular and shell assembly. The PCB is provided with pads for testing the electrical performance of the tubular and shell assembly. By achieving a non-destructive, solderless electrical connection between the PCB and the tubular and shell assembly through the button-type testing module, compared to the existing technology of welding the two ends of a wire to the ceramic insulator and ceramic substrate of a ceramic insulator assembly to achieve an electrical connection between the ceramic insulator and the ceramic substrate, the wire and welding process are eliminated, achieving non-destructive electrical performance testing of the tubular and shell assembly and significantly improving the testing efficiency. This solves the problems of high welding difficulty, difficult wire routing, non-non-destructive testing, and low electrical performance testing efficiency in existing technologies.

The utility model discloses a relay with high safety. The relay comprises a relay main body, a shell, a base and a stable structure, the relay main body is sleeved with a shell, the top is provided with a ceramic insulator, a coil and a contact, and the bottom is provided with a base; longitudinal slots are formed in the upper side surface of the base for mounting and positioning; the stabilizing structure comprises a supporting rod, the bottom of the supporting rod penetrates through the base and is provided with a supporting plate, the supporting rod is driven to move longitudinally through a threaded rotating rod, and jacking and fixing of the relay body are achieved in cooperation with the clamping inserting groove. A fixed block and a movable cavity are arranged on the upper side of the base, a limiting sliding groove is formed in the cavity, and a limiting sliding block is arranged at the top of the supporting rod to ensure stable movement. The bottom side of the base is provided with a placing groove convenient to disassemble. The relay is fixed through a mechanical structure, and compared with a traditional mode, the relay is higher in stability, easy to assemble and disassemble, free of complex tools and suitable for severe environments, safe operation of the relay is guaranteed, and maintenance cost is reduced.

The application belongs to the technical field of insulator processing, and particularly relates to a ceramic insulator, a processing system and a processing method thereof. The ceramic insulator processing system comprises a processing table, two clamping seats are slidably connected to the processing table, a clamping plate is rotatably connected to each clamping seat, a placing groove is arranged on the lower side of the processing table, two sliding seats are slidably connected to the processing table, a transverse seat is slidably connected to each sliding seat, wiping cotton is arranged on each transverse seat, a first compression spring is fixedly connected between each sliding seat and each transverse seat, a filter plate is detachably connected to the lower side of the processing table through bolts, an air suction machine is fixedly connected to the lower side of the filter plate, and an openable and closable shell is arranged on the outer side of the processing table. The openable and closable shell can wrap the processing table, and the device can collect the debris and residues remaining on the ceramic insulator during the cleaning process after polishing, so as to facilitate the recycling of subsequent materials.

The application discloses a porous nano ceramic reinforcing body, a light-weight nano composite ceramic insulator and a preparation method thereof. 2‑x Cu x P2O7, and a multi-stage pore-forming agent and silane coupling agent interface modification technology is used to construct a three-level pore structure with macroscopic pores, microscopic pores and nanopores. The reinforcing body is prepared through an optimized gel injection molding and gradient sintering process, high strength under high porosity is achieved, and the overall material has near-zero thermal expansion characteristics by using the negative thermal expansion effect. The size instability and internal thermal stress caused by the sharp change of temperature are solved, and the long-term reliable operation of the insulator under extreme climate is laid a foundation.

According to the assembled ceramic insulator, each adjusting shaft is sleeved with a plurality of adjusting sliding blocks capable of sliding along the adjusting shaft in the extending direction of the adjusting shaft, and each adjusting sliding block is provided with two adjusting assemblies capable of being synchronously driven; each adjusting assembly comprises three adjusting cylinders and a ceramic umbrella sheet, the three adjusting cylinders are arranged in the radial direction of the first insulating porcelain column, one ends of the three adjusting cylinders are connected in a sleeving mode, the ceramic umbrella sheet is connected to the tail end adjusting cylinder, and the three adjusting cylinders are configured to be capable of being driven layer by layer so as to drive the ceramic umbrella sheet to move in the radial direction; the wire holder is provided with a first end face which can block one end of the first insulating knob insulator and can be connected with the other end of each adjusting shaft and a second end face which is deviated from the first end face, and the second end face is provided with a wire connection assembly used for being connected with an external cable. The problems that an existing ceramic insulator only depends on winding installation and manual adjustment modes, accurate assembly and adjustment are difficult to achieve, the overall stability and connection reliability are affected, and the environment adaptability is poor are solved.

The application provides a ceramic insulator and a preparation method thereof, and belongs to the technical field of power equipment. The insulator comprises a core layer and a shell layer. The core layer comprises the following components in percentage by mass: 70-80% of alumina, 15-25% of yttrium stabilized zirconia, 2-5% of cerium oxide, and 0.5-1% of yttrium oxide. The shell layer comprises the following components in percentage by mass: 90-95% of alumina, 1-2% of magnesium oxide, 1-3% of silicon oxide, and 0.5-1% of boron oxide. The ceramic insulator of the application adopts a core-shell structure design. The alumina in the core layer provides a high mechanical strength basis, and the yttrium stabilized zirconia as a toughening phase can effectively improve the toughness of the insulator and reduce the risk of brittle fracture. The high content of alumina in the shell layer further enhances the surface hardness and wear resistance of the insulator.

The invention discloses a power insulator with a protection structure at the edge, and the power insulator comprises a plurality of groups of ceramic insulators, the outer end of each ceramic insulator is provided with a protection assembly, and the center of each ceramic insulator is provided with a slot. An upper resin rod and a lower resin rod are respectively inserted into the slots at the two ends of the plurality of groups of ceramic insulators, a middle resin rod is inserted into the slot between the upper resin rod and the lower resin rod, fixed seats are fixedly mounted at the separated ends of the upper resin rod and the lower resin rod, and a fastening assembly is arranged on one side of each fixed seat. The flashover phenomenon of discharge breakdown occurs between the adjacent ceramic insulators, the protection assembly can effectively protect the edges of the ceramic insulators, damage caused by overlarge stress at the edges is avoided, the sunken sealing grooves and the umbrella-shaped faces of the ceramic insulators form transitional umbrella skirt-shaped cambered surfaces after being matched with the upper sheath, and therefore the sealing effect of the ceramic insulators is improved. Therefore, water drops cannot gather on the surface and can quickly flow away to reduce the conductivity, and the safety is improved.

The invention discloses a metallization printing method for the side surface of an insulator for an inlaid tube shell. The metallization printing method comprises the following steps: (A) manufacturing a ceramic insulator green ceramic chip by using a green ceramic tape and metallization slurry according to a multi-layer ceramic production process; (B) pasting a thermosensitive film on the back surface of a green ceramic tape of the green ceramic chip of the ceramic insulator, and cutting a non-side printing surface; (C) cutting the side printing surface to obtain a strip-shaped raw ceramic piece of the ceramic insulator pasted with the thermosensitive film; (D) arranging and fixing the strip-shaped raw ceramic pieces of the ceramic insulator on the substrate, keeping the side printing surfaces upward, and carrying out full printing; and (E) baking the strip-shaped raw ceramic piece of the ceramic insulator to obtain the naturally-falling side-metallized ceramic insulator. The production efficiency can be improved, the steps are simplified, the possibility of appearance defects caused in the manual operation process is reduced, and the quality is improved; tedious manual operation is avoided, and the cost of customizing a mold is saved; the defects of the prior art are overcome, and mass production of the ceramic insulator is facilitated.

The invention relates to a method for manufacturing a patterned groove in the surface of a ceramic insulator and the ceramic insulator. According to the method, in the wet blank forming stage of the ceramic insulator, a prefabricated flexible mold is used for imprinting, and the patterned groove is integrally formed in the surface of a blank body; according to the method, on the premise that the continuity of the glaze layer and the integrity of the base body are not damaged, stable manufacturing of the patterned groove is achieved, the method can be highly compatible with follow-up glaze dipping and sintering procedures, and the overall performance and the service life of the insulator are guaranteed. Meanwhile, the method has good replicability and large-scale application potential, and can provide solid process support for popularization of the embedded RTV coating structure in an actual power grid. The invention provides a brand new way for engineering application of the embedded coating structure on the ceramic insulator.

A method for implementing plasma injection in the middle of a blast furnace involves evenly installing several plasma torches on the upper part of the furnace waist or the lower part of the furnace body around the circumference. The plasma torches inject coke oven gas, hydrogen, or other reducing gases into the blast furnace. Utilizing their adjustability, the method effectively controls the edge temperature within the blast furnace and enhances reduction, improving edge permeability and promoting smooth blast furnace operation. It does not aim to completely replace all reduction within the blast furnace. The provided plasma torches consist of an electrode head, an arc-igniting ion head, an extension sleeve, electrode needles, a ceramic insulator, isolation ribs, a reducing gas inlet, sealing packing, and a pressure cap. Each torch has a power of 50kW to 80kW, an outer diameter of 60mm±10mm, and a length of 800mm±100mm. Each plasma torch is equipped with an independent box-type control cabinet, enabling individual power supply and control. The reducing gas injection rate is set to 10m³ to 50m³ per ton of iron. 3 The temperature injected into the furnace is 1100℃±100℃. It has the functions of single-branch gas supply, single-branch pressure and flow measurement and instantaneous display, and single-branch flow adjustment and control.

This invention relates to the field of Hall thruster technology and discloses a thermal isolation structure suitable for Hall thrusters using metallic working fluids. The structure includes a high-temperature assembly, a low-temperature assembly, and a thermal isolation structure disposed between the two. The high-temperature assembly includes a heating component for evaporating the metallic working fluid, a gas distributor for conveying the metallic working fluid vapor, and a discharge channel for ionizing and accelerating the working fluid. The low-temperature assembly includes a magnetic circuit system for generating a radial magnetic field. The thermal isolation structure includes at least one mechanical support connecting the high-temperature and low-temperature assemblies and multiple insulators. The mechanical support is made of a low thermal conductivity material and has a minimized heat conduction path cross-section. The mechanical support is preferably a low thermal conductivity ceramic substrate, and the insulators are preferably cylindrical ceramic insulators. The low thermal conductivity ceramic substrate is disposed between the high-temperature and low-temperature assemblies to support the discharge channel and block heat transfer to the magnetic circuit system. The gas distributor is supported on one side of the low thermal conductivity ceramic substrate by a fixed column and achieves insulation and heat insulation through cylindrical ceramic insulators. This thermal isolation structure can effectively suppress heat transfer from high-temperature assemblies to low-temperature assemblies, reduce the temperature rise of the magnetic circuit system, and improve the operational stability and reliability of the thruster.

This invention provides a sealed ceramic insulator with wiring components, relating to the field of ceramic insulator technology. It includes a ceramic insulator, a U-shaped cable tray, a mounting rod, a first spring, a pressure plate, and rotating plates. The mounting rod extends through the ceramic insulator. Two rotating plates are symmetrically positioned at the upper end of the U-shaped cable tray. The pressure plate is located at the upper end of the mounting rod, and the first spring is located at the lower end of the pressure plate. When the pressure plate moves vertically downwards or upwards relative to the mounting rod, it drives the rotating plates on both sides to rotate synchronously towards or away from each other. This invention ensures uniform mechanical load distribution on the ceramic insulator through the mounting rod; the overall weight of the conductor drives the rotating plates on both sides to self-clamp; the buffering effect of the first spring prevents increased stress at the contact point due to conductor icing and wear on the conductor and ceramic insulator caused by wind swaying, as was present in the original design; when a conductor section needs repair, the conductor can be easily removed from the upper end of the pressure plate, simplifying operation and facilitating maintenance.

The application discloses an automatic body repairing device for ceramic insulators and relates to the technical field of body repairing of ceramic insulators. The edge fixing disc comprises a bottom rotating rod, a rotating disc and an air outlet. The bottom rotating rod is rotationally connected to the bottom of a repairing table. A motor is arranged at the bottom of the bottom rotating rod, and the bottom rotating rod is fixedly connected to the output end of the motor. The rotating disc is fixedly connected to the top of the bottom rotating rod. The air outlet is arranged in the inner wall of the rotating disc. An air suction valve is arranged in the inner wall of the air outlet. When the device is used to repair the ceramic body, the body is placed on the top of the rotating disc. Then, the air suction valve in the air outlet is started, and the air suction valve is used to suck and fix the body on the top. This step avoids the conventional clamping mechanism from leaving marks on the soft body, thereby causing the body to be defective.

The invention relates to the technical field of crystal growth, and provides a seed crystal electrostatic adsorption stabilizing device for a SiC growth furnace, the seed crystal electrostatic adsorption stabilizing device comprises a shell used as a protection shell, the bottom side of the shell is fixedly connected with a ceramic adsorption disc used for adsorbing flaky SiC seed crystals, the ceramic adsorption disc is powered by a discharge electrode installed in the shell, and the discharge electrode is connected with the shell. An electric field generated by the discharge electrode generates polarized charges on the surface of the bottom side of the ceramic adsorption disc serving as a ceramic insulator, the surface of the seed crystal induces anisotropic charges, and the seed crystal is adsorbed on the bottom side of the ceramic adsorption disc through coulomb force. The electrostatic adsorption mode is used for replacing traditional mechanical clamping and bonding, physical contact damage and chemical pollution risks are fundamentally eliminated, and the surface integrity of the seed crystal is ensured. The ceramic adsorption disc is used as an insulating carrier and can stably generate uniformly-distributed polarization charges in a high-temperature environment, so that the stress of the seed crystal is balanced, and the crystal defect caused by non-uniform stress in the growth process is effectively inhibited.

1. Name of the product in this design: Ceramic Insulator (Rainproof Type). 2. Purpose of this design: for insulation of high-voltage power lines. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model provides a novel split type lamp holder, which relates to the technical field of lamp holders, and comprises a hollow shell and a cover body, a clamping position is arranged on the inner wall of one end of the shell, and a lamp cap light-emitting component is arranged in the shell; one end of the lamp holder light-emitting assembly penetrates through the shell to be arranged on the outer side of the shell and is limited and prevented from falling off through the clamping position, and the other end of the lamp holder light-emitting assembly is provided with an elastic piece for supporting the lamp holder light-emitting assembly. One end of the elastic piece is provided with a clamping position, the other end of the elastic piece is provided with an isolation piece, the elastic piece is compressed between the lamp cap light-emitting assembly and the isolation piece, and the isolation piece is arranged between the elastic piece and the cover body. And the lead is limited through the ceramic isolation piece at the lower end, so that friction between the lead and the shell is avoided, and potential safety hazards are avoided.

The utility model discloses an outer circle coating device for high-efficiency production of ceramic insulators, which relates to the technical field of insulator production and comprises a printing jig disc driven by a printing motor to rotate, a slurry box is correspondingly arranged below the printing jig disc, the lower end of the printing jig disc is immersed in slurry in the slurry box, and the outer circle of the printing jig disc is coated with a coating layer. One side of the printing jig disc is correspondingly provided with a positioning jig rod sleeved with the product body, the other side of the printing jig disc is correspondingly provided with an ink scraping piece, and the product body and the ink scraping piece abut against the outer circle face of the printing jig disc. By means of the coating mechanism, product bodies of different models can be guided and limited, corresponding printing jig discs can be replaced according to the product bodies of the different models, meanwhile, slurry on the outer walls of the printing jig discs can be evenly scraped through the ink scraping grooves in the ink scraping pieces, and therefore the printing jig discs can be used for printing products. And therefore, the purpose of uniformly coating the outer walls of the product main bodies of different models can be achieved, and the processing efficiency of coating and printing the product main bodies is further improved.

Various examples of the present disclosure provide aircraft engine sensing apparatuses and methods of manufacturing aircraft engine sensing apparatuses. For example, an example aircraft engine sensing apparatus includes an aircraft engine sensor, a plurality of connection wires, and at least one ceramic insulator. In some examples, the aircraft engine sensor is positioned within an aircraft engine. In some examples, the plurality of connection wires connect the aircraft engine sensor to a sensor connector. In some examples, the plurality of connection wires are positioned within a wire protection housing. In some examples, the at least one ceramic insulator is positioned within the wire protection housing and defines a plurality of insulator openings. In some examples, each of the plurality of connection wires passes through one of the plurality of insulator openings.

The utility model discloses a corona preionization high-power excimer laser, which is characterized in that a laser discharge cavity is arranged in a shell, a main discharge electrode is arranged in the laser discharge cavity, and the main discharge electrode comprises a main discharge cathode and a main discharge anode; corona rods capable of conducting discharge preionization on working gas are arranged in the laser discharge cavity and located on one side of the main discharge cathode at intervals, each corona rod comprises a preionization electrode and a ceramic insulator, gaps are formed between the peripheral face of each ceramic insulator and the outer side wall of the main discharge cathode and the inner side wall of the insulation cavity, and the preionization electrodes and the main discharge anode are grounded. The main discharge cathode is connected with a negative high-voltage pulse, and when the excimer laser works, the driving voltage pulse of the corona rod is the same as the driving voltage pulse of the main discharge electrode. Corona discharge preionization is carried out through the corona rod, the main discharge electrode cannot be corroded, discharge dust cannot be generated, and it is ensured that the main discharge electrode carries out uniform glow discharge to generate high-quality laser.

The invention discloses an intelligent power grid insulator and an automatic processing system thereof, belongs to the technical field of insulators, and aims to solve the problem that the insulation performance is not easy to adjust according to environmental conditions since the umbrella skirts and insulating rods of existing ceramic insulators are mostly integrally formed. A detection assembly is arranged at one end of the insulating rod, a dynamic distance adjusting assembly is arranged in the insulating rod, a plurality of extrusion assemblies are arranged on the outer wall of the insulating rod, a plurality of external expansion assemblies are arranged on one side of the dynamic distance adjusting assembly, a plurality of arc-shaped umbrella skirts are arranged on the outer walls of the external expansion assemblies, and arc-shaped rubber blocks are arranged between the arc-shaped umbrella skirts. According to the invention, the active adjustment of the insulativity of the insulator can be conveniently realized, and compared with the limitation of the traditional integrated design, the passive insulation is upgraded to the active adaptation, and the insulation safety and the operation reliability under the complex working condition are improved.

The invention discloses a ceramic insulator surface defect-free forming process, which relates to the technical field of ceramic insulator production, and comprises the following steps: a preparation stage: preparing a ceramic blank; and preparing the gradient functional microcapsule. A forming and drying stage: respectively mixing the microcapsules with water, a binder and a dispersant to prepare a plurality of coating solutions; sequentially covering the coating liquid on the inner wall of a mold for manufacturing the ceramic insulator; the ceramic blank is put into a mold subjected to film coating treatment, the mold is closed, and pressure is applied to form the ceramic blank; and the ceramic green body with the multiple solid film layers attached to the surface is fed into a microwave drying kiln to be dried, and a dry ceramic body is obtained. A firing stage: glazing the dry ceramic body; and feeding the glazed dry blank into a kiln for firing. The ceramic insulator surface defect-free forming process has the advantages of being low in rejection rate, short in production period and low in energy consumption.

The application relates to the technical field of power equipment state detection, in particular to a pollution degree classification method for insulators based on a double-attention multi-scale enhancement network, which comprises the following steps: preparing ceramic insulator samples of different pollution levels, collecting hyperspectral image data of the samples, and constructing a double-attention multi-scale enhancement network framework model, wherein the model comprises a double-branch spectral enhancement module and a multi-scale spatial-spectral feature extraction module; a local region centered on a target pixel is extracted from the hyperspectral image data as network input, spectral correlation features are captured through the double-branch spectral enhancement module, multi-scale pollution region features and channel attention features are extracted through the multi-scale spatial-spectral feature extraction module and are fused; and a global average pooling and a full connection layer are used to output ceramic insulator pollution level classification results. The application realizes high-precision pixel-level classification of the pollution degree of ceramic insulators and is suitable for monitoring and evaluation of the pollution state of ceramic insulators in actual power systems.

The invention discloses a dielectric breakdown phase field simulation method and system for a ceramic insulator and a storage medium, and the method comprises the steps: carrying out the batch modeling of a non-uniform porous structure of the ceramic insulator through employing a Grasshopper plug-in, and generating a two-dimensional model file of the ceramic insulator; the two-dimensional model file is imported into COMSOL software, and material attributes are given to the holes and the base body; grid division is carried out on the porous structure and the base body, and boundary conditions are defined; solving a calculation model of a dielectric breakdown evolution path based on material attributes, grid division results and boundary conditions to obtain an influence rule of the non-uniform porous structure of the ceramic insulator on dielectric properties and breakdown evolution; according to the method, a model highly similar to an actual non-uniform porous structure can be quickly established by utilizing a Grasshopper plug-in, and meanwhile, phase field electric breakdown simulation is performed by utilizing COMSOL software, so that a structure-performance relationship rule is obtained.