371results about "Encapsulation/impregnation" patented technology

The invention discloses a vacuum pressure impregnation mold assembly process and a mold. The process comprises the following steps: mounting bottom hard molds on a plurality of independent supporting platforms, and then positioning superconducting coils; descending the platform in sections to lay a bottom soft mold and a flow guide component to ensure uniform gaps; the side edge soft mold, the side edge hard mold, the top flow guide net and the soft and hard mold are sequentially installed, and finally the soft mold is subjected to segmented welding and the hard mold is reinstalled. The mold is assembled through the method, and modular assembly is achieved by lifting the independent supporting platform in stages. According to the process, the load of a single platform is reduced through sectional assembly, precision deviation and equipment damage are avoided, and meanwhile, the use of a lifting appliance is reduced to protect the dimensional stability of the coil; a soft and hard mold layered assembly mode is adopted, the machining difficulty of a large-size mold is simplified, the manufacturing cost is reduced, and the size control precision is improved; the step-by-step assembly process effectively reduces the wrong assembly risk, avoids the problem of glue injection port blockage, and ensures the success rate of the vacuum pressure impregnation process.

The packaging device for inductor production comprises a dispensing head, the dispensing head comprises a glue storage cavity, a metering cavity and a pressure adjusting cavity which are sequentially communicated, a dispensing pipe is connected to the lower portion of the metering cavity, the dispensing pipe is movably sleeved with a protection ring concentric with the dispensing pipe, a first vertical telescopic part is installed on the outer edge of the protection ring, and a second vertical telescopic part is installed on the outer edge of the first vertical telescopic part. The bottom end opening of the protection ring is covered with a supporting plate, one corner of the outer side of the supporting plate is rotationally connected with one corner of the outer side of the protection ring through a rotating shaft, and the rotating shaft is further connected with a first motor. The protective ring is arranged outside the dispensing pipe, so that when the dispensing pipe is in a standby state, the lower port of the dispensing pipe is covered with the protective ring, the dispensing pipe and a workbench are isolated through the supporting plate, residual glue in the dispensing pipe can be effectively prevented from dripping on a table top, meanwhile, the supporting plate can be rotationally opened relative to the protective ring, and the protective ring can conveniently and vertically ascend and descend along the dispensing pipe; and the protective ring can be stored at the upper part when the dispensing pipe works.

The invention discloses an inductor hot-pressing precision powder filling machine and a powder filling method thereof.The inductor hot-pressing precision powder filling machine comprises a rack, a cold pressing mechanism, a cold pressing mold core and a powder feeding mechanism, the cold pressing mechanism is connected to the rack, the cold pressing mechanism comprises an upper stamping structure and a lower stamping structure which are vertically and oppositely arranged, and the upper stamping structure is connected with the lower stamping structure; a pressing space is formed between the upper stamping structure and the lower stamping structure; the cold pressing mold core is arranged in the pressing space and comprises a prefabricated block female mold, the upper stamping structure is located above the prefabricated block female mold, the lower stamping structure is located below the prefabricated block female mold, and the prefabricated block female mold is slidably connected with a hot pressing mold plate; the powder feeding mechanism is connected to one side of the cold pressing mold core and used for filling the prefabricated block female mold with powder. According to the technical scheme, the powder filling uniformity is improved, powder residues are reduced, and the powder filling amount is effectively controlled.

The invention relates to the technical field of high-temperature superconducting magnets, in particular to a vacuum paraffin solid sealing control method for a high-temperature superconducting magnet. Comprising the steps that a plurality of working sub-areas are established according to parameters of the solid sealing equipment, and a heating sub-module is arranged in each working sub-area; characteristic parameters of the to-be-processed high-temperature superconducting magnet are obtained, and a solid sealing control strategy of the to-be-processed high-temperature superconducting magnet is set according to the characteristic parameters; acquiring monitoring data of each working sub-region according to a preset feedback time node, and judging whether a correction instruction is generated or not according to all the monitoring data; a coil tray in a paraffin solid-sealing furnace is improved, a plurality of working sub-areas are established, a modular heating mode is adopted, the solid-sealing requirements of various types of high-temperature superconducting magnet coils are met, meanwhile, a corresponding solid-sealing control strategy is rapidly set according to real-time characteristic parameters of a high-temperature superconducting magnet to be processed, and the high-temperature superconducting magnet coil solid-sealing efficiency is improved. And the paraffin sealing effect and the overall sealing efficiency of the high-temperature superconducting magnet coil are improved.

The invention relates to the technical field of transformer pouring tanks, and particularly discloses a vacuum pouring tank for pouring a dry-type transformer, the vacuum pouring tank comprises a tank body, mounting frames are symmetrically and fixedly connected to the outer surfaces of the two sides of the tank body, and a vacuum gauge is fixedly mounted on the side surface of the tank body; and a vacuum pipe is fixedly connected to the outer surface of the side, close to the vacuum gauge, of the tank body in a penetrating mode and arranged on the inner side of the mounting frame. When the interior of the tank body is in a vacuum state, the interior of the tank body is in a negative pressure state, and at the moment, the inner wall of the tank body is subjected to corresponding extrusion force under the suction action of negative pressure; the bottom plate and the top plate are fixedly mounted on the upper surface and the lower surface of the interior of the tank body, so that the two side surfaces of the tank body can be supported through the bottom plate and the top plate when the interior of the tank body is in a negative pressure state, the possibility of deformation of the tank body is greatly reduced, and the vacuum state in the tank body is protected; and the situation of air leakage caused by damage due to deformation of the tank body in a negative pressure state for a long time is avoided.

The invention discloses a network transformer full-automatic assembly production line which comprises a base, a performance detector and a dispensing device, the performance detector and the dispensing device are both installed on the base and connected through a mechanical arm, and the network transformer full-automatic assembly production line further comprises an assembly device. The assembling device is installed on the base and connected with the performance detecting machine through a mechanical arm. According to the full-automatic assembling production line for the network transformer, the feeding station, the inner hoop installing station, the magnetic core installing station, the hoop installing station and the hoop shaping station are sequentially arranged on the first rotating disc, corresponding installing mechanisms are arranged on the stations, the network transformer is assembled step by step, a mechanical automatic assembling mode is adopted, and the assembling efficiency is greatly improved. The assembling efficiency of the network transformer can be greatly improved, meanwhile, performance testing and dispensing packaging can be conducted on the assembled network transformer through the performance testing machine and the dispensing device, and the production efficiency of the network transformer is further improved.

The invention discloses an inductance device and a preparation method thereof.The method comprises the steps that aluminum oxide and epoxy resin are mixed according to a preset proportion, and an injection molding raw material is obtained; the injection molding raw materials are added into a charging barrel of injection molding equipment, and the target magnetic core is placed into a cavity of an injection mold; the injection mold is moved to injection molding equipment for mold locking; injection molding equipment is controlled to pour injection molding raw materials into an injection molding cavity, and the injection molding raw materials enter a cavity of the injection mold through a nozzle; when a cavity of the injection mold is filled with the injection molding raw material, the injection molding raw material is subjected to pressure maintaining for first preset time; cooling for a second preset time through a cooling system arranged in the injection mold; and demolding to obtain the inductive device with the plastic shell formed on the surface of the target magnetic core. The problems that the consistency and the yield of the inductor device cannot be well guaranteed in an existing magnetic core shell mounting mode, the production cost of the inductor device is high due to manual participation of magnetic core shell mounting, and the market competitiveness is insufficient are solved.

The invention discloses a potting type high-precision sine and cosine rotary transformer and a processing method, and relates to the field of sine and cosine rotary transformer processing applied to an extreme environment, and the processing method comprises the following steps: potting and curing a rotor, and potting a part on the outer side of a rotor bracket with a potting material to obtain a rotor potting piece; potting and curing the stator, and potting the inner side part of the primary side iron core of the annular transformer by a potting material to obtain a stator potting piece; and grinding the outer circular surface of the rotor potting piece, and grinding the inner circular surface of the stator potting piece. And the rotary transformer functional parts are all tightly packaged, so that the working field of the rotary transformer is greatly widened, the capability of the rotary transformer for resisting severe environments such as hydraulic oil, moisture and mould is improved, and the explosion-proof reliability is improved.

The invention discloses dry-type transformer curing agent castable production equipment, and relates to the technical field of dry-type transformers, the dry-type transformer curing agent castable production equipment comprises a square scraping plate, the square scraping plate is in contact with the inner wall of a material mixing barrel when stirring castable, one side of the square scraping plate is provided with a linkage rod, the outer surface of the square scraping plate is provided with a rectangular hole, and the rectangular hole is communicated with the linkage rod. According to the dry-type transformer curing agent castable production equipment, the inner wall and the bottom surface of the inner wall of the material mixing barrel are scraped at any time through a rotating square scraping plate, so that the situation that due to the fact that many mixed raw materials are mixed, the mixed raw materials close to the inner wall of the barrel are difficult to fully stir for a long time and are extremely prone to being accumulated and attached to the inner wall of the barrel, and follow-up pouring machining is inconvenient is prevented; the plurality of rhombic stirring rods are respectively arranged at different height positions in the rectangular hole to uniformly stir the castable at different heights, so that the situation that the castable with a certain viscosity degree is located at a position far away from the stirring rods and is difficult to fully mix along with continuous mixing of the castable is prevented.

A coil component includes an exterior body, a coil, and a pair of terminal electrodes. The coil is disposed inside the exterior body. The pair of terminal electrodes are electrically connected to the coil and are disposed on the exterior body. The exterior body includes a first portion that covers the coil and is made of a resin, and a second portion including a side surface on which the pair of terminal electrodes are disposed. The second portion includes a material having a relative permittivity lower than a relative permittivity of the resin and is disposed between the coil and the pair of terminal electrodes.

The invention relates to the technical field of hot presses, in particular to an annular hot press which comprises an annular rack and a plurality of hot pressing mechanisms, and each hot pressing mechanism comprises an upper die structure and a lower die structure; the upper die structure comprises an upper die heat insulation shell, an upper die base, an upper movable die, a first push rod and an upper driving piece in driving connection with the first push rod. The lower die structure comprises a lower die heat insulation shell, a lower die base, a lower movable die and a second push rod, and is fixedly provided with a lower driving part which is in driving connection with the second push rod; the stress rings of the hot pressing mechanisms are independent, and the upper die and the lower die can be synchronously closed and opened, so that the stress of the middle die frame fixing plate is balanced, and the upper die and the lower die are counteracted up and down without bending deformation. And the die frame, the die holder and the movable die can be uniformly stressed, so that the consistency of pressed products is improved. And the inner-layer mold frame adopts all-around heat insulation, so that heat loss can be reduced to the greatest extent, and electric energy is effectively saved.

A molded inductor includes a winding having leads configured for attaching leads of the winding to pads on a package substrate, having a magnetic core with a body disposed within the winding, wherein the magnetic core has at least one mold flow enhancing feature that enhances a filling of a magnetic mold material as compared to a filling provided by a uniform cylindrical body. The magnetic mold material encases the winding and the magnetic core to form either a standalone discrete inductor component, or the magnetic component of an output filter of an integrated switching power converter module.

A casting type power inductor includes a base, a hollow coil, and a casting. The base includes a flange and a central column. The central column is fixedly arranged at the center of the flange. The hollow coil is tightly wound on the central column. The casting is used for wrapping the base and the hollow coil. The preparation method for the casting type power inductor includes blank preparation, coil winding, combined body arrangement, slurry casting, curing treatment, and post-treatment that are sequentially performed. According to the casting type power inductor, pressureless forming can be implemented by casting a magnetic slurry, so that a short circuit, an open circuit, or deviation to the edge of the inductor, of the coil caused by excessive pressure is avoided.

The invention belongs to the technical field of electromagnetic interference, and discloses a differential mode and common mode integrated structure inductor and a manufacturing method thereof.The differential mode and common mode integrated structure inductor comprises a shell, a magnetic ring, a differential mode element and a first magnetic block, the shell comprises a bottom shell and a top cover, the top cover is detachably connected to the bottom shell, the bottom of the bottom shell is connected with two spaced hollow columns, and a groove is formed in the side, close to the bottom shell, of the top cover; the magnetic ring and the differential mode element are arranged in the bottom shell, the differential mode element and the two hollow columns are arranged in a hollow area of the magnetic ring in a penetrating mode, the differential mode element is clamped between the two hollow columns, the two opposite sides of the differential mode element abut against the inner wall of the magnetic ring, the first magnetic block is arranged in the bottom shell and inserted into the groove, and the bottom of the first magnetic block can abut against and cover the top of the differential mode element. One end of the first magnetic block is flush with the outer wall of the magnetic ring; the filter has excellent common-mode filtering characteristics and differential-mode filtering characteristics, meets the filtering requirements of working in a large-current or unbalanced-current environment, has good large-current-resistant and anti-saturation capability, and is simple in structure, small in size and low in manufacturing cost.

The invention discloses a high-frequency transformer magnetic core side column dispensing machine which comprises a feeding device, a conveying belt, a transfer device, a dispensing device, a discharging device, a controller, a workbench and a rack. The workbench and the controller are arranged on the rack; the feeding device is installed on the left side of the workbench. The conveying belt is installed on the workbench and located on the right side of the working position of the feeding device. The transfer device is installed on the rear portion of the workbench, and the starting point of the working position of the transfer device is located above the tail end of the conveying belt. The dispensing device is positioned on the right side of the conveyor belt and in front of the transfer device; and the discharging device is mounted in front of the dispensing device on the workbench. The full-automatic magnetic core dispensing machine adopts a complete machine modular design, is compact in structure and convenient to mount and maintain, can realize magnetic core feeding, taking transfer, dispensing and discharging at one time, has the advantages of high integration level and automatic operation, and is good in application prospect.

The application relates to the technical field of inductor production equipment, and discloses a common-mode inductor glue dispensing and assembling machine, which comprises a machine base, an inductor material bin device, an inductor material taking and feeding device, an inductor glue dispensing device and a common-mode magnetic sleeve loading and pressing device. The inductor material bin device comprises a material bin box and a material disc, and the inductor material taking and feeding device transfers the material disc to the inductor glue dispensing device. The inductor glue dispensing device comprises a second movable seat and a third movable seat, the second movable seat is provided with a second conveying mechanism, the third movable seat is provided with a glue dispensing mechanism, a first industrial camera mechanism and a grabbing mechanism. The common-mode magnetic sleeve loading and pressing device comprises a common-mode magnetic sleeve loading vibrating disc mechanism, a fourth movable seat and a fifth movable seat, the fourth movable seat is provided with a third conveying mechanism, and the fifth movable seat is provided with a pressing mechanism. The common-mode inductor glue dispensing and assembling machine has the advantages of high integration, high automation and strong continuous working capacity, and can effectively improve the production efficiency and product quality.

A method for manufacturing a reactor includes a bonding process of joining molded cores with a molded coil with an adhesive, and a welding process of connecting, by welding, the lead wire of a coil to a busbar fixed to the molded core. The coils are attached to respective leg portions. The bonding process includes an applying process of applying the adhesive to the joining surfaces of the respective leg portions of each of the core members, and the inner circumferential surfaces of the respective yoke portions of the core members, a depressing process of spreading the applied adhesive by depression, and a curing process of curing the adhesive.

The application discloses a manufacturing method of an involute transformer core, which comprises the following steps: S1, cutting a stainless steel silicon steel sheet to obtain a silicon steel sheet blank; S2, using a rolling tool to manufacture the silicon steel sheet blank into an involute silicon steel sheet; S3, stacking a plurality of the involute silicon steel sheets on the periphery of a base cylinder, and tightly holding the involute silicon steel sheets and the base cylinder by using a plurality of stainless steel hoops to form a holding piece, and annealing the holding piece as a whole; S4, bundling; S5, preheating the bundled piece; S6, immersing the preheated bundled piece into insulating paint; S7, solidifying the bundled piece; S8, surface treatment; and S9, gluing, coating epoxy glue on the outer surface of the component which has been surface treated in the step S8, and firmly bonding the component with an epoxy cylinder. The manufacturing method of the involute transformer core provided by the application has single specification of the involute silicon steel sheet, avoids a plurality of specifications of the width of the radial silicon steel sheet, is convenient to manage, and reduces storage devices.

The present invention provides a power module and a manufacturing method thereof. The power module includes a substrate, an electronic component, a magnetic component, and a plastic encapsulation component. The substrate includes a first surface, a second surface, and an operating area, wherein the first surface and the second surface are opposite to each other, and the operating area is disposed on the first surface or the second surface; the electronic component is disposed on the substrate; the magnetic component is disposed in the operating area of ​​the substrate and has a side periphery; and the plastic encapsulation component is disposed on the substrate, covering the electronic component and at least partially surrounding the side periphery of the magnetic component, wherein the projections of the plastic encapsulation component and the operating area on the first surface of the substrate do not overlap, and a gap is formed between the plastic encapsulation component and the side periphery of the magnetic component.

The application discloses an inductor, which comprises a packaging shell, an input pole, an output pole and a metal shielding layer. The inductor is characterized in that the inductor is internally packaged with an inductive component; the input pole is exposed on the surface of the packaging shell and used for receiving an alternating voltage; the output pole is exposed on the surface of the packaging shell and used for outputting a direct current voltage; the metal shielding layer is asymmetrically covered on the surface of the packaging shell and electrically connected with the output pole; and the metal shielding layer still keeps the input pole and the output pole electrically isolated. The application further provides an inductor manufacturing method and a power supply circuit comprising the inductor, solves the problems of small electromagnetic shielding range, poor effect and unstable inductor potential in the prior art, and realizes better electromagnetic shielding effect and stable inductor potential.

The invention provides a current transformer and a production method thereof, and relates to the technical field of current transformers, the current transformer comprises a shell, a coil assembly is arranged in the shell, the coil assembly comprises a coil, fixing blocks in bilateral symmetry are arranged in the shell, grooves are formed in the fixing blocks, pins are arranged in the grooves, and the coil is connected with the pins. A groove is formed in the fixing block, a limiting groove is formed in the groove, a penetrating groove is further formed in the fixing block, the penetrating groove is communicated with the groove, the penetrating groove and the groove are arranged to form a 90-degree angle, a limiting block is arranged in the penetrating groove, and the limiting block is matched with the limiting groove in a pressing mode. According to the invention, the pins are placed in the grooves, and then the limiting blocks are inserted into the limiting grooves, so that the pins are limited, the pins do not need to be extruded and matched, the probability of damage to the pins is reduced, and the yield of the current transformer is effectively improved.

The application discloses a paraffin solid sealing furnace for a vehicle-mounted superconducting magnet coil, wherein the melting paraffin cabin and the solid sealing cabin are combined into one, and the structure is compact; the paraffin groove is arranged in the solid sealing furnace, the original paraffin pipeline exposed to the environment can be cancelled, the temperature reduction, solidification, blockage and injection of paraffin in the pipeline due to flow can be avoided, the pouring process is smooth and controllable, and a good solid sealing effect is achieved. In terms of temperature control, mainly using air convection to conduct heat transfer, scientifically arranging the electric heating pipe and the turbulence fan, effectively eliminating the temperature gradient inside the coil and the paraffin, and improving the uniformity of the temperature distribution. In terms of pouring control, the vibration exciter arranged below the superconducting coil tray can effectively accelerate the discharge of bubbles inside the coil. In terms of vacuum control, only slight negative pressure in the furnace needs to be maintained, which greatly reduces the performance of the vacuum pump, the sealing requirement of the furnace body, the manufacturing difficulty and the cost.

The invention discloses a magnetic track brake electromagnet coil, a magnetic track brake electromagnet and a preparation method. The magnetic track brake electromagnet coil comprises a winding, a coil frame, an insulating layer, a cover plate and a heat insulation layer. The winding is arranged in a coil groove of the coil rack, and the winding is formed by winding an enameled flat copper wire of which the temperature resistance level is H level or higher; the insulating layer wraps the winding; the cover plate is welded and fixed at the opening of the coil slot and is used for sealing the coil slot; the heat insulation layer is arranged at the position, corresponding to the welding position of the cover plate, in the coil groove and used for blocking heat generated when the cover plate is welded. Damage of welding heat to the coil is effectively avoided, the overall sealing performance and environmental adaptability of the coil are improved, and therefore long-term stable operation of the coil is guaranteed.

A preparation method and composite core for a current transformer, comprising the following steps: separately preparing a silicon steel core, an SMC molded lining, and an amorphous core; embedding the silicon steel core into the SMC molded lining to form a shell; placing the amorphous core into the shell; placing epoxy resin and a curing agent in a blender and stirring and mixing them to obtain a mixture I; pouring the obtained mixture I into the shell, allowing the mixture I to completely penetrate the amorphous core, covering the amorphous core, and then curing; after curing, placing the epoxy resin, curing agent, and silicon powder in a blender and stirring and mixing them to obtain a mixture II; pouring the mixture II into the shell, filling the shell, and curing it to obtain the composite core. The composite core obtained by the above steps of the present invention has improved mechanical properties, protects the silicon steel core and the amorphous core from stress, effectively reduces the composite core buffer layer, increases the effective distance of the main insulation, and improves the power frequency withstand voltage, partial discharge level, measurement accuracy, and protection multiple of the current transformer.

Manufacturing system (1) for the manufacture of a stator (2) and / or a rotor (3) of an electric machine (4), comprising: wherein a holding tool (5) for receiving a plurality of stacked annular disc-shaped electrical steel sheets (6), wherein the holding tool (6) has a clamping mandrel (7) for fixing the electrical steel sheets (6) to the inner diameter (8) of the clamping mandrel (7), and a base plate (10) at a first axial end (9) of the clamping mandrel (7) and a cover plate (12) at a second axial end (11), wherein an axial stress can be introduced into the electrical steel sheets (6) arranged on the clamping mandrel (7) via the base plate (10) and / or the cover plate (11); a baking lacquer tool (20) into which the holding tool (5) equipped with the electrical steel sheets (6) can be inserted and adjusted to a baking lacquer temperature; a transfer molding tool (30) into which the holding tool (5) equipped with the electrical steel sheets (6) can be inserted and adjusted to a molding temperature, characterized in that the holding tool (5) comprises a injection geometry which, in a state inserted into the transfer molding tool (30), influences the shaping and / or the flow of the plastic during the transfer molding process.

The invention discloses a fully automatic winding machine capable of reserving a margin of lead wire, comprising a winding device, a shell insertion device, a margin limiting device, a wire dividing device and a foot wrapping device; the winding device comprises a wire upper assembly, an upper ring assembly and a winding assembly; the winding assembly is used to wind the winding wire on a magnetic ring to form a first workpiece; the shell insertion device is connected to the rear end of the winding device, and is used to load the first workpiece into the shell to form a second workpiece; the margin limiting device is connected to the rear end of the shell insertion device, and is used to limit the lead wire margin of the winding wire on the second workpiece; the wire dividing device is connected to the rear end of the margin limiting device; the foot wrapping device is connected to the rear end of the wire dividing device; through the above structure, the fully automatic production of wire winding, shell insertion, lead wire margin limiting, wire dividing and foot wrapping of the magnetic ring can be realized, which not only greatly improves the production efficiency, but also ensures that in the produced products, there is enough margin between the pins of the magnetic ring and the shell to avoid the situation of lead wire breakage.

A method of fabricating a high-temperature bobbin for a solenoid or other electrical assembly includes the step of providing a bobbin configured for use in the assembly. The bobbin is coated with an anti-oxidation composition and an anti-corrosion composition to produce an oxidation / corrosion resistant bobbin. The oxidation / corrosion resistant bobbin is coated with an electrical insulating composition that is resistant to corona discharge at or below a predetermined voltage threshold to produce an insulated and oxidation / corrosion resistant bobbin. The anti-oxidation composition, the anti-corrosion composition, and the electrical insulating composition can withstand temperatures of subzero up to temperature greater than 1000° F.

Impregnation device (2) for impregnating bodies (4), in particular wound materials, with at least one holding device (6) having at least one holding means (8) on which a body (4), in particular a wound material, can be fixed, with at least one first working area (10) in which at least the body (4) can be fixed on the holding means (8) and in which the body (4) can be released from the holding means (8) again, with at least one second working area (12) in which at least one impregnation container (14) is arranged which is filled with a fluid impregnating the body (4), with at least one transfer device (16) by which the holding means (8) can be transferred from the first working area (10) to the second working area (12) and back, and with at least one electric heating unit (18) comprising at least one contact means (20) fixed in or on the holding means (8),the body (4) can be manually or automatically connected or connected in the arrangement of the body (4) fixed on the holding means (8) with at least one phase connection (22) of the body (4), which can be continuously and without interruption connected or connected to a power supply of the electric heating unit (18) when the holding means (8) is transferred from the first working area (10) to the second working area (12), and by which the body (4) can be electrically heated continuously and without interruption in the first working area (10) and in the second working area (12), wherein the transfer device (16) comprises at least one bearing unit (30) comprising a rotary axis (28), wherein the transfer of the at least one holding means (8) from the first working area (10) to the second working area (12) comprises a rotary or oscillating movement about the rotary axis (28) of the bearing unit (30), characterized by at least one lifting / lowering device (34),comprising at least one first lifting / lowering means (36) in the first working area (10) by which the body (4) is movable, in particular liftable, along a first direction of movement (38) onto the holding means (8), and comprising at least one second lifting / lowering means (40) in the second working area (12) by which the impregnation container (14) is movable, in particular liftable, along a second direction of movement (42) onto the body (4), and the body (4) is arrangable in the fluid, wherein the first direction of movement (38) and the second direction of movement (42) are parallel to the axis of rotation (28) of the bearing unit (30).

The invention relates to a high-frequency thin film magnetic bead and a preparation method and application thereof. The preparation method comprises the steps that a Fe source, a Si source, a B source, a Cu source, a Nb source and a Ga source are smelted into a first alloy ingot according to a formula, then the first alloy ingot and a C source are smelted to prepare a second alloy ingot, the second alloy ingot is prepared into an amorphous alloy strip, and an iron-based nanocrystalline alloy is obtained through magnetic field heat treatment; the method comprises the following steps: mixing an iron-based nanocrystalline alloy and aluminum oxide to form a magnetic mixture, placing the magnetic mixture in a mold provided with a surrounding wire, carrying out pressure forming to obtain a thin-film-shaped magnetic blank, and sintering the thin-film-shaped magnetic blank in an inert gas environment to obtain a magnetic bead blank; and mixing an insulating material with graphite, forming a coating layer on the surface of the magnetic bead blank to obtain a magnetic bead body, and arranging an electrode electrically connected with the surrounding wire on the magnetic bead body to obtain the high-frequency thin-film magnetic bead. According to the invention, the material and the structure of the magnetic bead are optimally designed, so that the high-frequency thin-film magnetic bead with better magnetic performance and smaller volume can be obtained.

The invention belongs to the technical field of transformer processing, and particularly relates to a network transformer varnish dispensing device which comprises a rack, an incoming material belt line is sequentially installed on the rack, a product moving track is installed on one side of the incoming material belt line, and a varnish dispensing mechanism is installed on one side of the product moving track. One side of the varnish dispensing mechanism is provided with a varnish glue amount detection assembly, one side of the varnish glue amount detection assembly is provided with a defective product receiving mechanism, one side of the defective product receiving mechanism is provided with a defective product taking module, and one side of the defective product taking module is provided with a good product tray discharging and moving mechanism. And a full tray moving mechanism and an empty tray receiving lifting mechanism are further mounted on the rack. Automatic continuous feeding is achieved by integrating the incoming material belt line, the product moving track and the like, automatic material carrying is completed in cooperation with the full material disc moving mechanism and the like, and the production efficiency and continuity are improved; and precise operation of the varnish dispensing mechanism is combined with speed regulation control, so that the glue amount of varnish is uniform, and the product consistency is improved.