95 results about "Soft magnet" patented technology

The utility model relates to the technical field of automobile parts, and discloses a leakproof automobile oil can cover sealing structure which comprises an oil can body, an oil can opening is formed in the upper end of the oil can body, an outer cover is installed at the upper end of the oil can opening, and an inner cover is fixedly connected to the inner side of the lower end of the outer cover. The outer wall of the inner cover is connected with the inner wall of the oil pot opening through a clamping assembly, a cavity is formed in the inner cover, a ventilation assembly is arranged in the cavity, a sealing ring is installed on the upper side of the outer wall of the inner cover, and the outer wall of the sealing ring makes contact with the inner wall of the oil pot opening. A sealing gasket is installed between the outer wall of the inner cover and the inner wall of the outer cover, and the lower end of the sealing gasket makes contact with the upper end of the oil pot opening. According to the utility model, through the cooperation of the clamping rod and the clamping groove, the cooperation of the annular soft magnet and the annular permanent magnet, and the arrangement of the sealing ring and the sealing gasket, the sealing performance can be enhanced from multiple dimensions, so that the oil leakage is effectively prevented.

The invention discloses an intelligent chess and card with magnetic ring chess pieces, and the intelligent chess and card is Chinese chess or international chess and is also suitable for other chess and card types, such as military chess. Multi-system coding is carried out on polarity combinations of magnetic ring positions of the magnetic ring chess pieces, a unique ID is given to each magnetic ring chess piece, each position of the chessboard is correspondingly provided with a magnetic induction chip, the unique ID is recognized, and recognition of the magnetic ring chess pieces is completed; and meanwhile, the magnetic induction chip at each position of the chessboard is coded through a natural sequence or is written with an address code, so that the position of the magnetic ring chess piece on the chessboard is identified. According to the invention, information is transmitted through stable magnetic pole signal combination, and the anti-interference capability is high. The soft magnets are arranged at the chess piece placing positions of the chessboard to enable the magnetic ring chess pieces to return, the problem that the chess piece placing positions are not accurate is effectively solved, and the chess playing hand feeling and the viewing comfort are improved. Identity information of the chess pieces is transmitted in a positioning mode, and operations such as eating, undoing, replaying and the like in the chess playing process are effectively handled.

The utility model relates to the related technical field of soft magnetic ferrite processing, in particular to an automatic arrangement device for soft magnetic ferrite production, which comprises a base, the surface of the base is connected with a clamping block, one side of the surface of the base is provided with a clamping mechanism, and one side of the surface of the base is provided with an adsorption mechanism. According to the automatic arrangement device for soft magnetic ferrite production, through the arrangement of the clamping and conveying mechanism, automatic clamping and placing can be rapidly carried out, soft magnetic ferrites are placed in the clamping grooves, the multiple sets of clamping grooves are formed, and therefore the multiple sets of soft magnetic ferrites can be placed, and the machining efficiency after arrangement of the soft magnetic ferrites is effectively improved; and when the soft magnetic ferrite is placed in the clamping groove, the soft magnetic ferrite can be adsorbed through the adsorption mechanism, so that the soft magnetic ferrite is prevented from falling off.

The automatic temperature control system comprises an equipment mounting plane, a soft magnet, a permanent magnet and a deformable heat dissipation surface, the soft magnet and the equipment mounting plane are mounted in a heat conduction manner, an elastic body and the deformable heat dissipation surface are arranged between the permanent magnet and the soft magnet, the automatic temperature control system has an unfolded state and a folded state, and a flexible heat conduction part is mounted in the automatic temperature control system; according to the temperature of the lunar surface equipment, the magnetism of the soft magnet is changed, the elastic body is converted between a compressed state and a loosened state, and the deformable heat dissipation surface is changed from a folded state to an unfolded state in a self-adaptive manner by combining the gravity of the lunar surface, so that heat of the lunar surface equipment is transferred to the deformable heat dissipation surface to radiate and dissipate heat outwards; or the deformable heat dissipation surface is changed into a folded state from an unfolded state, the lunar surface equipment is wrapped in the deformable heat dissipation surface, and heat preservation is conducted on the equipment. The method can give consideration to the energy utilization rate and the system reliability, and plays an important role in the lunar exploration task.

The utility model discloses an anti-bubble soft magnetic ferrite core mould which comprises a mounting frame, an upper mould and a lower mould are respectively mounted on the inner side of the mounting frame, a hydraulic oil cylinder connected with the upper mould is mounted at the top of the mounting frame, a supporting plate for mounting the lower mould is arranged at the bottom of the mounting frame, and a lower mould is mounted on the supporting plate. A damping spring abutting against the bottom of the supporting plate is mounted at the bottom of the mounting frame, a vibrator is mounted at the bottom of the supporting plate, and supporting strips for supporting the supporting plate are arranged on the inner side of the mounting frame. The device is simple in structure, the hydraulic oil cylinder drives the upper mold to move downwards for mold closing, the vibrator vibrates the lower mold on the supporting plate, after the mold is filled with magnetic powder, the interior of the magnetic powder is fully compacted, bubbles generated in the manufacturing process are pressed out, and the damping spring plays a role in preventing the vibration amplitude from being too large; magnetic core raw material liquid in the mold is prevented from flowing out, the production efficiency and the production quality of the soft magnetic ferrite magnetic core are guaranteed, and batch production is facilitated.

The utility model discloses a plastic steel energy-saving ultra-silence door and window structure which comprises a door and window structure body, sound absorption filling cotton and a soft magnet strip, the sound absorption filling cotton is arranged in hole channels in the bottoms of two sliding rails located in the door and window structure body, and sliding rail parts are arranged on the two sides of the top of the door and window structure body. Two pulley contact protruding strips are arranged on the surface of the sliding rail part, and the bottom of the soft magnet strip is connected and fixed in the connecting groove. The sliding rail is reasonable in structural design, the sliding rail bottom hole channels are formed and filled with the sound absorption filling cotton, the pushing and moving vibration strength of doors and windows is buffered, meanwhile, the sound absorption and noise reduction effects are achieved, the effect of ultra-silence doors and windows is achieved, the soft magnet strip is arranged between the two sliding rail parts, and the sound absorption and noise reduction effects are achieved. Metal powder generated by friction can be magnetically attracted and concentrated, and powder accumulation is avoided.

The application relates to a mechanism for field decelerator storage and a storage method thereof, which comprises a cross beam frame I fixedly installed at a certain height from the ground in a warehouse, a plurality of bottomless box bodies are arranged on the cross beam frame I at intervals, a box bottom plate can place a decelerator, a lifting frame II has a bearing plate and a lifting mechanism, the lifting mechanism can lift the bearing plate and the decelerator and then buckle the bearing plate and the decelerator with the bottomless box body, a ring of sealing air bags is arranged at the buckling position of the box bottom plate and the edge of the bottomless box body, and a ring of soft magnets capable of magnetization and demagnetization is arranged in the cavity of the sealing air bags. The application has the advantages of adjustable sealing position, good sealing effect, increased storage time of the decelerator and the like.

The invention relates to the field of soft magnetic ferrite core processing, in particular to a grinding device for soft magnetic ferrite core production. According to an existing soft magnetic ferrite core grinding device, when magnetic cores of different specifications are ground, a grinding jig needs to be detached for adjustment, the process is tedious and time-consuming, in the magnetic core grinding process, chippings generated in the process are inconvenient to clean and collect, the iron core grinding quality is affected, dust pollution is caused, and the health of workers is harmed. A grinding device for soft magnetic ferrite core production comprises a supporting frame and the like. A box body is fixedly connected to the supporting frame, and a servo motor is fixedly connected to the box body. The servo motor can drive the four movable frames to jointly support and limit a machined part, the grinding roller can grind the surface of the machined part, the position of the grinding roller can be adjusted, and therefore soft magnetic ferrite iron cores of different specifications can be ground, and the equipment is wider in applicability.

The application discloses a three-dimensional magnetic suspension structure of diamagnetic particles, comprising: permanent magnets, conical soft magnets, diamagnetic particles and non-magnetic supports; the permanent magnets are three pairs of permanent magnets installed in x, y and z orthogonal directions, wherein the magnetic pole directions of only two pairs of the permanent magnets are the same; the conical soft magnets are three pairs of conical soft magnets, which have large end faces and small end faces, the large end faces are connected with the one end of the permanent magnets which are towards the center, and the small end faces are towards the center of the three-dimensional magnetic suspension structure; the diamagnetic particles are suspended in the center of the magnetic suspension structure formed by the permanent magnets and the soft magnets; and the non-magnetic supports are used for fixing and installing the permanent magnets and the soft magnets. The application makes full use of the advantages of the permanent magnetic suspension, such as passive, low noise and strong environmental adaptability, and is compatible with a large particle size range and high magnetic trap stiffness; the application has the characteristics of non-directional suspension, and greatly widens the application of the diamagnetic particle magnetic suspension structure in the fields of mobile and rotating platforms.

The utility model relates to the technical field of power distribution cabinets, and discloses a high-low voltage power distribution cabinet convenient to overhaul, which comprises a power distribution cabinet body and a cabinet door, a fixing frame is fixedly arranged in the power distribution cabinet body, and a first fixing rod and a second fixing rod are fixedly arranged in the fixing frame. A first groove is formed in the face, away from the power distribution cabinet body, of the first fixing rod, and a sliding rod is fixedly installed in the first groove. According to the high-low voltage power distribution cabinet convenient to overhaul, through cooperation of the first soft magnet and the second soft magnet, the cabinet door and the power distribution cabinet body are connected more tightly, and in a humid environment, it is avoided that humid air enters the power distribution cabinet body through the joint of the cabinet door and the power distribution cabinet body, electrical elements are damaged, and overall normal use is affected; and through the design of the multiple guide grooves and the second threaded holes, the distance between the adjacent mounting plates can be adjusted conveniently, electrical elements of different sizes can be mounted conveniently, and adaptability is high.

The utility model discloses a kind of intelligent processing equipment with fire extinguishing function, including equipment shell and temperature-sensitive soft magnet, the water tank is fixedly connected on the side of equipment shell upper surface.The intelligent processing equipment with fire extinguishing function is set through water tank, permanent magnet and temperature-sensitive soft magnet, pull ring drives pole to overturn, to drive valve rotation and close, permanent magnet and temperature-sensitive soft magnet mutually adsorb, at this time tension spring is stretched deformation, after water is added in water tank, processing main body in equipment shell is operated to workpiece, once accidental fire appears inside equipment shell, the high temperature of combustion can increase temperature-sensitive soft magnet surface temperature, along with the increase of temperature until temperature-sensitive soft magnet loses magnetism, make permanent magnet separate after springback, drive ejector rod to make pull ring to drive pole, to make the valve of duct rotation, make the water in water tank inside to leave to fire, after first sealing cover is opened, the fine sand of sand storage tank flows down, with automatic fire extinguishing function.

To provide a soft-magnetic iron alloy sheet having a saturated magnetic flux density higher than that of an electromagnetic pure iron sheet without excessively increasing iron loses, a method for manufacturing the soft-magnetic iron alloy sheet, an iron core using the soft-magnetic iron alloy sheet, and a rotary electrical machine.SOLUTION: This soft-magnetic iron alloy sheet has a chemical composition containing N by 2-10% atoms, Co by 0-30% atoms, and V by 0-1.2% atoms and having a remaining part of Fe and impurities. In the thickness direction of the soft-magnetic iron alloy sheet, there are provided an outer nitrogen concentration transition region in which an N concentration on a main surface is 1-4% atoms and the N concentration increases from the main surface to the inside, a high nitrogen concentration region in which a maximum N concentration is higher than the N concentration on the main surface and less than 11% atoms, and the fluctuation range of the N concentration is within 1% atom, and an inner nitrogen concentration transition region in which a N concentration is reduced from the high nitrogen concentration region to the inside and a minimum N concentration is lower than the N concentration in the high nitrogen concentration region and 1% atom or more.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of motor manufacturing, and discloses a motor punching sheet glue spraying method, which comprises the following steps: placing a motor punching sheet array on a punching sheet net disc at intervals, placing a soft magnet plate right below the punching sheet net disc, and fixing the position of the motor punching sheet on the punching sheet net disc through the magnetic force of the soft magnet plate. The method comprises the following steps: integrally placing a punching mesh disc and a soft magnet plate in a closed box to complete glue spraying, integrally placing the punching mesh disc and the soft magnet plate in a drying oven to be dried, then integrally turning over the punching mesh disc and the soft magnet plate, placing a standby punching mesh disc under the punching mesh disc, placing a standby soft magnet plate under the standby punching mesh disc, and placing the standby soft magnet plate under the standby punching mesh disc. And the soft magnet plate is moved upwards, so that the motor punching sheet adsorbed by the magnetic force below the punching sheet net disc falls onto the standby punching sheet net disc and is fixed by the magnetic force of the standby soft magnet plate, and the standby punching sheet net disc and the standby soft magnet plate are used for replacing the punching sheet net disc and the soft magnet plate to finish glue spraying and drying of the other surface of the motor punching sheet. The motor punching sheet turning machine can complete overall turning of motor punching sheets in batches and is high in production efficiency.

The present application relates to the technical field of soft magnetic ferrite production, and discloses a magnetic grinding mud recovery device, which comprises a sewage pool and a rack, a roller is arranged to rotate horizontally inside the sewage pool, a plurality of openings are formed on the surface of the roller, a closing plate is hingedly arranged at each opening, an electromagnet is arranged outside the closing plate, support plates and conductive rings are arranged on the two sides of the roller, the support plates and the conductive rings are fixedly connected with the rack, an adjusting rod is arranged on the closing plate, the adjusting rod extends to the middle of the conductive ring and the support plate, an adjusting gap is arranged above the support plate, a collecting pipe is arranged inside the roller, an opening is formed on the upper end of the collecting pipe, the opening of the collecting pipe is connected with the opening of the closing plate when the closing plate is opened downward, a conveying mechanism for conveying the grinding mud is arranged inside the collecting pipe, and a driving mechanism for driving the roller to rotate is arranged on the rack. The present application can more conveniently recover the magnetic grinding mud.

The utility model relates to a kind of soft magnetic ferrite core processing device, involve magnetic core processing technical field, including box, multiple placing plates are fixedly installed in the box inner wall transversely, two the placing plates of adjacent are fixedly connected by connecting plate, multiple through-slots are opened in the equal interval angle on the placing plate upper end face, sliding installation is carried out in the through-slot inner wall, and the moving block extending to the placing plate below, extruding block is fixedly installed on the moving block upper end face, pulling rod is vertically arranged below the placing plate, the pulling rod upper end is rotatably connected with moving block by the connecting rod of inclination arrangement, the box inner wall is connected with multiple pulling rod by pulling control mechanism, the box top is installed with link plate by lifting control mechanism, the link plate is installed with polishing device by elastic abutting mechanism, the utility model can process multiple magnetic cores simultaneously, and need not to carry out multiple adjustment, simplify operation.

Provided is a technique that can achieve both magnetic properties and machinability by cutting at a high level, which has been impossible with only the conventional techniques of improving the machinability by cutting using MnS or the like. A soft magnetic iron comprises a chemical composition containing, in mass %, C: less than 0.02%, Si: less than 0.05%, Mn: more than 0.03% and 0.50% or less, P: 0.002% or more and less than 0.006%, S: 0.013% or more and 0.050% or less, Al: 0.010% or less, N: 0.0010% or more and 0.0100% or less, and B: 0.0003% or more and 0.0065% or less, with a balance consisting of iron and inevitable impurities.

This invention relates to the field of magnetic core processing, and more particularly to a slit-cutting processing device for the production of soft magnetic ferrite cores. Existing devices easily damage fragile magnetic cores during cutting and loading, are inconvenient for continuous cutting, and after cutting, parts of different magnetic cores are easily mixed, resulting in core mismatch. The slit-cutting processing device for the production of soft magnetic ferrite cores includes a support plate, etc.; a guide rail is fixedly connected to the support plate, an electric slider is slidably connected to the guide rail, a drive motor is fixedly connected to the upper part of the electric slider, and a cutting blade is mounted on the output shaft of the drive motor. By using a buffer wheel to cushion the magnetic cores, fragile magnetic cores are less likely to be damaged before cutting. Furthermore, by using push blocks to sequentially push one magnetic core into the placement slot for cutting, continuous cutting of multiple magnetic cores is achieved, improving processing efficiency.

This invention discloses a fine-grinding device for soft magnetic ferrite cores, relating to the field of soft magnetic ferrite processing technology. The invention includes a cabinet with two symmetrically arranged fixed columns at the top. Two support platforms are fixedly mounted through the outer walls of the tops of the fixed columns. A drive mechanism is mounted on the top of each support platform. An outer grinding wheel is located at the top edge of the cabinet. An electric slide rail is mounted on the top of the inner wall of the cabinet, and a rotating mechanism is slidably mounted inside the electric slide rail. An inner grinding wheel is fixedly mounted at the output end of the rotating mechanism. This invention, through the interaction of the inner and outer grinding wheels, enables magnetic cores of different sizes to automatically complete the grinding of their inner and outer walls during revolution, avoiding the need for multiple grinding and adjustments for a single core, effectively improving the grinding efficiency of the core. Simultaneously, the negative pressure mechanism prevents grinding debris residue and adhesion, avoiding scratches caused by debris.

The application discloses a kind of 48 hours salt fog resistant microamorphous soft magnetic powder, the microamorphous soft magnetic powder is Fe-Ni-Mo-Si-B-P-C-Cr system soft magnetic powder, its surface is successively coated with SiO2 coating and corrosion inhibitor layer, and constitutes double-layer composite coating structure.The application is directed to the amorphous powder soft magnetic characteristics, adds Ni, Mo, Cr three elements on the basis of traditional Fe-Si-B amorphous soft magnet, so that the corrosion resistance of powder itself is greatly improved, the rust prevention ability of amorphous powder is significantly improved by double-layer composite coating structure, and excellent soft magnetic performance can be maintained.

The application relates to a magnetic circuit part of a relay and a relay. The magnetic circuit part of the relay comprises a yoke assembly, a moving iron core, a static iron core, a coil and a magnetic retention assembly. The yoke assembly encloses a receiving space. The magnetic retention assembly is arranged in the receiving space. The moving iron core is movably arranged in the receiving space. The static iron core is opposite to the moving iron core in the movement direction of the moving iron core. The magnetic retention assembly and the coil are stacked along the movement direction of the moving iron core. The magnetic retention assembly is used for providing a magnetic retention force when the moving iron core is located at a first position or a second position. The magnetic retention assembly comprises a soft magnet and at least two permanent magnets. The soft magnet is used for conducting magnetic lines of force between the at least two permanent magnets. The soft magnet and the permanent magnets jointly enclose a moving space around the movement direction of the moving iron core. At least part of the structure of the moving iron core is located in the moving space when the moving iron core moves to the first position. The magnetic circuit part of the relay and the relay can reduce the cost and the assembly difficulty.

A braking device (12a, 12b) comprising: a hard magnet (20); a soft magnet (22) configured to switch polarity between a first polarity and a second polarity when subjected to a magnetic field and configured to retain polarity when the magnetic field is removed; an electrical coil (24) located around the soft magnet; an electrical control system (16) configured to apply a pulse of electrical current to the electrical coil to generate a magnetic field for changing the polarization of the soft magnet; and a braking element (18) comprising a magnetic target portion (28), the braking element being arranged to move to a release position (40) when the soft magnet adopts the first polarity and to move to a braking position (64) when the soft magnet adopts the second polarity due to a magnetic field generated by the combination of the hard magnet and the soft magnet and acting on the magnetic target portion.

The application discloses an energy-saving hybrid sieve plate extraction column system and relates to the technical field of towers.The system realizes reciprocating vibration and circumferential motion of the sieve plate by intermittently inputting energy into the hybrid sieve plate extraction column by the driving magnet, reduces energy consumption and failure rate, and is not affected by changes in the size of the tower.The system comprises a tower body assembly and a control unit;the tower body assembly is provided with a top assembly, a bottom skirt assembly, a transmission shaft and a bottom support assembly;the top assembly comprises a shell and an axial driving magnet assembly;the transmission shaft is provided with an axial driven magnet;the bottom support assembly comprises a support cylinder and a spring;the tower body assembly is provided with a circumferential driving magnet assembly;the bottom of the sieve plate is provided with a circumferential driven magnet;the axial driving magnet assembly and the circumferential driving magnet assembly are both made of soft magnet;the axial driven magnet and the circumferential driven magnet are both made of hard magnet;and the control unit can control the magnetization and demagnetization frequency of the two driving magnet assemblies.

A door stopper used for hair and smooth surfaces comprising a rigid inner core; the rigid inner core is configured to be a slope structure; a concave surface at one end of the bottom surface of the end portion of the rigid inner core is provided with a rubber-coated positioning ring for positioning during the injection molding process; a circular soft magnet sheet is embedded in a lower end surface of the rigid inner core; the carpet claw may be assembled in and disassembled from the clamping groove of the outer anti-sliding body, and the outer anti-sliding body wraps the rigid inner core first and then is embedded into the carpet claw; the rubber-coated positioning ring is used for positioning the outer anti-sliding body during injection molding, and the soft magnet sheet is embedded in the outer anti-sliding body with one side exposed for being in contact with the outside.

Some variations provide a method of tailoring the surface of a soft magnet, comprising: depositing an austenite-phase-stabilizing donor material on one or more first surface regions of a ferromagnetic receiver material; not depositing the austenite-phase-stabilizing donor material on one or more second surface regions of the ferromagnetic receiver material; laser melting the austenite-phase-stabilizing donor material into the first surface regions; and solidifying the molten austenite-phase-stabilizing donor material within the first surface regions, thereby selectively alloying the ferromagnetic receiver material in the first surface regions. Laser ablation may be utilized instead of laser melting. The first surface regions have a significantly higher magnetic permeability, following the selective alloying of the donor material, compared to the second surface regions. Soft magnets with surface-tailored magnetic permeability are provided by this technology, which is demonstrated using several examples. One commercial application is selectively alloyed soft magnets for a rotor in an electric motor.

The utility model relates to the technical field of wireless charging, and discloses a wireless charging device capable of reducing eddy current, which comprises a first soft magnet, a receiving coil, a flexible circuit board, a second soft magnet and a connecting piece, and is characterized in that the first soft magnet is provided with a first through hole; the receiving coil is arranged below the first soft magnet, a first connecting end on the inner side of the receiving coil is positioned below the first through hole, and a second connecting end on the outer side is close to the edge part of the first soft magnet; an inner wire circuit of the flexible circuit board is located above the first soft magnet and connected with the first connecting end after passing through the first through hole, and an outer wire circuit is located below the first soft magnet and connected with the second connecting end. The second soft magnet is arranged above the first soft magnet and covers a position where the inner wire circuit is connected with the first connecting end; the connecting piece is arranged on the side, away from the first soft magnet, of the receiving coil. According to the utility model, the eddy current formed in the wireless charging device is reduced, the heating value of an electronic product is reduced, and the wireless charging efficiency is improved.

The invention discloses a rough-surface and smooth-surface dual-purpose door shield which comprises a rigid inner core, the rigid inner core is of an inclined surface structure, a rubber-coated positioning ring for positioning during injection molding production is arranged in a concave surface at one end of the ground at the end part of the rigid inner core, and a round soft magnet sheet is embedded in the lower end surface of the rigid inner core; the carpet claw is disassembled and assembled from a groove buckle on the outer-layer anti-slip main body, the outer-layer anti-slip main body is embedded into the carpet claw after being coated with the rigid material inner core, the rubber-coated positioning ring is used for positioning the outer-layer anti-slip main body during injection molding production, the soft magnet is also embedded into the anti-slip main body, one side of the soft magnet is exposed and is in contact with the outside, and the other side of the soft magnet is in contact with the outside. The front face and the back face can be used according to whether the ground is a smooth face or a rough face and are of a rigid material structure, the carpet claw is additionally arranged and can be detached, the door plug is of an assembled type, the outer layer anti-slip main body uses the anti-slip rib and wraps the rigid inner core, and the using effect on the smooth face ground is enhanced.

The invention relates to the technical field of inductor preparation, and particularly discloses a preparation method of an integrally-formed inductor with a high frequency response speed. The manufacturing method of the integrally-formed inductor comprises the steps that the winding coil is embedded in the ferrite core material, and then the integrally-formed inductor is formed through compression molding and thermocuring. The ferrite core material is mainly prepared from the following raw materials: wrapping soft magnetic ferrite magnetic powder, a resin adhesive, a curing agent, a silane coupling agent and an organic solvent, the coated soft magnetic ferrite magnetic powder is mainly prepared from the following raw materials: ferric oxide, nickel protoxide, zinc oxide, vanadium pentoxide, titanium dioxide, niobium pentoxide, lanthanum trioxide, water and silicon dioxide sol. The integrally-formed inductor has the advantages of being high in saturation flux density Bs, high in effective magnetic permeability mu e retention rate and low in magnetic loss Pcv, the frequency response speed is increased, and market requirements are met.

The application discloses a kind of low-loss soft magnetic ferrite material and preparation method thereof, the present application is by introducing lithium oxide in pre-sintering mixture, improve the microstructure of soft magnetic ferrite material, reduce the grain size, further reduce the loss of soft magnetic ferrite material;Meanwhile, the present application also adds MoO3, ZrO2 And CaCO3 Additive, the addition MoO3 can slow down the shrinkage rate of blank, improve sintering density, ZrO2 And CaCO3 It has high resistivity, can control the growth process of grain, refine grain, can improve the resistivity of grain boundary to inhibit high-frequency loss;The present application can refine grain and make grain become uniform through the interaction of multiple additives, with the effect of lower high-frequency loss.

The invention relates to the technical field of electronic component manufacturing, in particular to a chip inductor and a preparation method thereof. The preparation method of the chip inductor comprises the following steps: preparing a plurality of dielectric diaphragms from soft magnetic ferrite slurry by adopting a tape casting process; a connecting hole is formed in the dielectric diaphragm; preparing an electrode layer on the perforated diaphragm by adopting conductor paste; magnetic slurry is adopted to prepare a magnetic layer on the perforated membranes, and the electrode layer and the magnetic layer are located on different perforated membranes respectively; preparing an interlayer diaphragm by using the perforated diaphragm and the soft magnetic slurry; laminating the dielectric diaphragm, the electrode diaphragm, the magnetic diaphragm and the interlayer diaphragm together according to a preset sequence; performing isostatic pressing treatment, cutting operation and sintering operation on the block in sequence; and performing end coating treatment and electroplating treatment on the inductor monomers to form the chip inductor. According to the invention, the risk of short circuit can be reduced, and the working reliability of the device in the communication equipment and the power management module is improved.

The utility model discloses a strip-shaped soft magnet cutting and arranging device which comprises a first rack, a second rack, a conveying roller, a first driving device, a guide block, a support, a limiting piece, a first lifting device, a second driving device, a rotating device, a second lifting device and a material receiving plate. The conveying roller is rotationally connected to the top face of the first rack, the guide block and the support are connected to the positions, on the two sides of the conveying roller, of the top face of the first rack, the limiting piece and the first lifting device are connected to the side face of the support, the output end of the first lifting device is connected with the cutter, and the second driving device and the rotating device are connected to the interior of the second rack. The output end of the rotating device penetrates through the top face of the second rack and is connected with a rotating block, the second lifting device is connected to one side face of the rotating block, and the output end of the lifting device is connected with an adsorption device. Compared with the prior art, the adsorption device is moved through the rotating device and the second lifting device, soft magnets cut by the cutter at equal intervals are arranged in order on the material receiving plate, the labor intensity is reduced, and the production efficiency is improved.