87 results about "Ferromagnetism" patented technology

The invention provides a chemical restoration method for treating heavy metal-polluted terrain soil by ferromagnetic artificial nucleuses. In a ferromagnetic artificial nucleus soil restoration method, the ferromagnetic artificial nucleuses are applied to heavy metal-polluted soil; soil above a heavy metal pollution depth is overturned by cultivation equipment to uniformly mix with the ferromagnetic artificial nucleuses; and after heavy metal can be dispersed from the soil to the artificial nucleuses by a period of time, the soil containing the artificial nucleuses is overturned by using the cultivation equipment to increase the change of the artificial nucleuses contacting with other soil. After the soil overturning procedure is repeated by multiple times, the cultivation equipment provided with magnets can be used for separating the ferromagnetic artificial nucleuses, absorbed with the heavy metal, from the polluted soil; and the content of the heavy metal of the polluted soil is reduced due to shifting-out of the ferromagnetic artificial nucleuses, so that the purpose of soil restoration is gradually achieved.

The application discloses an electromagnetic heating cooking appliance. It comprises a control device, an electromagnetic heating module, a cooking container, and a working condition display component. The electromagnetic heating module comprises at least one electromagnetic coil for generating an alternating magnetic field under the control of the control device, and the magnetic field area of the alternating magnetic field is non-uniformly distributed in the circumferential direction of the electromagnetic heating module; the cooking container comprises a ferromagnetic material, which is arranged in the magnetically inducible area of the electromagnetic heating module, and the central axis of the cooking container is substantially coincident with the central axis of the electromagnetic heating module; the working condition display component is electrically connected to the control device. The control device is configured to simultaneously perform the following operations during at least part of the cooking process: relatively rotating the cooking container and at least part of the electromagnetic heating module around the central axis to relatively rotate the alternating magnetic field and the cooking container; and making the working condition display component output at least a first visual signal representing the relative rotation.

This utility model relates to the field of weighing technology and discloses an adaptive magnetic weighing suction cup suitable for multiple scenarios. It includes a user-protective housing assembly, inside which is a magnetic suction component for adsorption and weighing. A height adjustment component is mounted at the rear of the housing assembly, and a connection component for connecting to external devices is located at the top of the height adjustment component. The housing assembly protects and mounts the magnetic suction component, and the front and rear housings form a protective space, making the structure compact and robust. During adsorption, the permanent magnet of the magnetic suction component magnetically attracts ferromagnetic objects. Because it is installed within the housing assembly's structure, the stability of the adsorption is ensured. During the adsorption process, combined with a weighing sensor, the weight of the adsorbed object can be measured. Furthermore, the weight of the object can be transferred to the weighing sensor through mounting plate one, mounting plate two, and a metal plate, achieving synergy between magnetic attraction and weighing to meet the needs of multiple scenarios.

This invention belongs to the field of magnetic separation equipment technology and discloses a magnetic separation and impurity removal screening device for green recycled concrete production. The device includes a frame, within which a concrete material conveyor belt is installed. One end of the frame is fixedly connected to a top feeding frame located above the concrete material conveyor belt. An auxiliary assembly support is fixedly connected to the upper end of the frame. Three horizontally equidistant magnetic separation conveyor belts are mounted on the inner end of the auxiliary assembly support. Through the coordination of the three horizontally equidistant magnetic separation conveyor belts, the concrete material conveyor belt, and the vertical gap between them, the recycled concrete raw material passes sequentially under the three magnetic separation conveyor belts, achieving multi-stage layered adsorption and impurity removal from front to back. This avoids the problems of residual or missed ferromagnetic impurities in single-stage magnetic separation, ensuring the thorough removal of fine magnetic materials such as rebar ends and iron filings, and significantly improving the purity and finished product quality of the green recycled concrete.

The application discloses a kind of full-automatic magnetic particle detection device and defect identification method for defect identification, it is related to nondestructive testing technical field.The present application comprises: mobile platform, the bottom of the mobile platform is equipped with multiple groups of driving assembly, for moving on the surface of the workpiece to be measured;Multiple magnetization components, the magnetization component is arranged at the bottom of mobile platform, for generating rotating magnetic field to the workpiece to be measured magnetization;Magnetic suspension liquid spraying assembly, the magnetic suspension liquid spraying assembly is installed in the bottom of the mobile platform, and magnetic suspension liquid spraying assembly is located between adjacent magnetization component, for spraying magnetic suspension liquid to the surface of the workpiece to be measured.The present application realizes the physical isolation of detection personnel and dangerous scene, eliminates the subjective error of artificial detection, and is suitable for high altitude, closed, toxic, radiation and other complex working conditions of ferromagnetic material surface and near-surface defect detection.

The magnetic element of the present embodiment includes a wiring layer and a first ferromagnetic layer in contact with the wiring layer, and the wiring layer includes a first layer of a crystal phase and a second layer of an amorphous phase between the first ferromagnetic layer and the first layer.

This invention discloses a remote real-time control system for ceramic membrane magnetic filtration based on the Internet of Things (IoT). The system comprises a sensing layer, an edge computing layer, a cloud control layer, a user interaction layer, and a modular access unit. The sensing layer, centered on a gradient field permanent magnet magnetic filtration module, integrates a Hall sensor array, an electromagnetic flowmeter, and a temperature sensor to collect key data such as magnetic saturation index, syrup flow rate, and liquid temperature in real time, achieving comprehensive perception of the ferromagnetic impurity capture status and raw material parameters. The gradient field permanent magnet magnetic filtration module is connected in series with the syrup delivery pipeline and includes a multi-stage detachable magnetic rod assembly, a Hall sensor array, a servo rotating sleeve, and a slag discharge channel. Compared to traditional iron removal equipment, this IoT-based remote real-time control system for ceramic membrane magnetic filtration is specifically designed for the characteristics of high-sugar, high-acid liquids. The gradient field magnetic circuit improves the capture efficiency, stably controlling the iron content below 0.3 ppm, effectively preventing product blackening, sedimentation, and a metallic taste.

The utility model relates to material transportation is with iron removal and divides material device, including transfer hopper, bidirectional belt conveyor, strong magnetic de-ironer and plate chain conveyor, the transfer hopper is used for storing material, its bottom is connected with the discharge pipe, and the discharge is aligned bidirectional belt conveyor's feed end, the strong magnetic de-ironer is installed in the top of bidirectional belt conveyor, is used for removing the iron impurity in material, the discharge end of bidirectional belt conveyor is connected with the feed end of plate chain conveyor, is used for conveying material to subsequent section, can form gradient magnetic field through the strong magnetic de-ironer and electromagnet bar array through the utility model, utilize the principle that ferromagnetic substance is stressed in the magnetic field, realizes the efficient removal of different particle size iron miscellaneous.

A magnetic locking mechanism which includes a locking pin having a ferromagnetic upper surface or aspect, a locking receptacle having a shaft suitable for receiving the pin, the shaft intersecting with a transverse opening whereby a portion of the pin will be received within a portion of the transverse opening, and a key comprising an upper grasping portion and a lower portion made of ferromagnetic material which is attracted to the locking pin ferromagnetic upper surface. The magnetic locking mechanism may be used in combination with a wall mountable bracket. The bracket may include a rear plate, upper front and rear flanges for retaining one or more bottles’ and one or more pairs of base flanges. Each flange in a pair of base flanges is spaced laterally from the other except for the presence of a bridge between them. On the bridge is a protuberance which is preferably at least partly received within a well of a bottle to limit movement of the bottle bottom.

The present invention relates to the technical field of electromagnetic heating. Disclosed are an electromagnetic heating cigarette device and an electromagnetic heating system. The electromagnetic heating cigarette device comprises: a housing, an electromagnetic coil, a parameter acquisition module, a driving device and a control module; when an alternating current is applied to the electromagnetic coil, a varying alternating magnetic field is generated, the parameter acquisition module acquires the magnetic field strength in a heating cavity, and when the magnetic field strength is less than a preset magnetic field strength, the control module controls, by means of the driving device, the electromagnetic coil to move in the housing until a new magnetic field strength reaches the preset magnetic field strength. It can be seen that in the present application, when the magnetic field strength at the position where a ferromagnetic element in a cigarette is located is less than the preset magnetic field strength, the control module controls, by means of the driving device, the electromagnetic coil to move in the housing until the new magnetic field strength is the preset magnetic field strength, and at this time, the ferromagnetic element in the cigarette is located at the center position of the alternating magnetic field, so as to achieve the maximum heating efficiency of the electromagnetic heating cigarette device and improve the satisfaction of the user experience.

This invention belongs to the field of advanced nuclear energy structural materials preparation and performance regulation technology, specifically relating to a strong magnetic field heat treatment method for improving the mechanical properties and radiation resistance of RAFM steel. The method includes the following steps: 1) obtaining raw RAFM steel; 2) quenching and tempering the raw RAFM steel sequentially; 3) placing the tempered RAFM steel in a vacuum heat treatment furnace and simultaneously applying a steady strong magnetic field for long-term high-temperature aging treatment; 4) after aging, cooling the RAFM steel to room temperature under magnetic field maintenance or slow demagnetization conditions to obtain reinforced RAFM steel. By introducing a steady strong magnetic field as an active control method into the high-temperature aging process, the microstructure of ferromagnetic materials is optimized through the physical effects of the magnetic field on atomic diffusion, phase transition behavior, and precipitation kinetics, thereby synergistically improving its mechanical properties and radiation resistance.

The application discloses a kind of saturation magnetic induction prediction of iron-based amorphous alloy, component design and super-high saturation magnetic induction iron-based amorphous / nanocrystalline alloy. Through machine learning model XGBoost combined with SHAP analysis reveals the core role of ferromagnetic element content, alloy mixing enthalpy and electronegativity difference, while maintaining high ferromagnetic element content, without deteriorating amorphous forming ability, after annealing can obtain very low coercivity, realize high saturation magnetic induction and amorphous forming ability, the synergistic optimization of coercivity. The parameters used in the composition design criteria proposed by the application do not require experimental data and can be calculated directly from the alloy composition. Combined with machine learning model, high-performance components can be quickly screened, significantly reducing the development cycle and cost of traditional trial-and-error method, providing systematic theoretical guidance for the development of high-performance soft magnetic materials and improving industrial feasibility.

This invention relates to the field of mineral processing technology. The invention discloses a multi-stage gradient magnetic separation device for magnetic separation of slurry, characterized by comprising: a sluice for conveying slurry; a magnetic separation unit comprising a plurality of magnetic separation components arranged along the slurry flow direction, each magnetic separation component comprising a plurality of magnetic separation rods arranged at intervals, the magnetic separation rods being adapted to magnetically attract ferromagnetic substances in the slurry, the magnetic properties of the plurality of magnetic separation components increasing sequentially in the slurry flow direction; and a driving component adapted to drive the magnetic separation components respectively, causing the magnetic separation components to insert into or leave the sluice. The multi-stage gradient magnetic separation device provided by this invention improves the grade and recovery rate of the separated ferromagnetic substances.

The application discloses a non-ferromagnetic wall thickness quantitative method based on a variable pulse width excitation, and comprises the following steps: a rising edge and a falling edge response of magnetic flux in a pickup coil are picked up through variable pulse width current excitation; with the increase of the pulse width of the excitation current, the signal attenuation of the rising edge speed and the falling edge speed becomes slow; and a feature slope corresponding to different pulse widths is extracted to realize the measurement of the metal wall thickness. The application uses the variable pulse width as the excitation signal, can flexibly control the eddy current penetration depth, realizes the wall thickness quantification from the surface layer to the deep layer, gives the signal dynamic characteristics, and thus higher measurement accuracy and repeatability are realized.

This invention relates to the field of transducer technology, specifically to an integrated coupled piezoelectric ultrasonic transducer, comprising an aluminum alloy cylindrical shell; silver-impregnated electrodes on both the upper and lower surfaces of the sensing unit, which simultaneously excite longitudinal and transverse waves under high-voltage pulse excitation; a backing damping block for absorbing reverse sound waves and improving signal clarity; a stainless steel bottom cover fixed to the open end of the shell and tightly coupled to a piezoelectric ceramic sheet, serving as protection and sound wave transition; an integrated coupling layer consisting of a flexible solid coupling sheet pre-attached to the outside of the stainless steel bottom cover; and a magnetic fixing ring, a ring-shaped neodymium iron boron permanent magnet embedded in the shell, for providing attraction force to the ferromagnetic bolts to stabilize the coupling pressure. Its advantages include: extremely simplified structure, compact size and light weight, low cost, elimination of measurement errors, improved measurement repeatability, and greatly simplified on-site operation procedures.

Position determination method for determining rotational and translational movements of a control element (BD) using a position determination system (PS), wherein - the positioning system (PS) has a rotational axis (D), - the control element (BD) is rotatable around the axis of rotation (D) only in a basic position (GP) aligned concentrically to the axis of rotation (D), - the control element (BD) is movable in a first plane at a fixed rotation angle perpendicular to the axis of rotation (D), - the position determination system (PS) includes a transmitter and a magnetic field sensor (S1) and an evaluation unit, - the transmitter is attached to the control element (BD), - in a first alternative, the transmitter includes a permanent magnet (PM), - by means of the transmitter a first magnetic field component and a second magnetic field component perpendicular to the first magnetic field component is generated, wherein the first magnetic field component and the second magnetic field component lie in a measuring plane of the magnetic field sensor (S1), - the first magnetic field component and the second magnetic field component are determined using the magnetic field sensor (S1), - a signal vector is determined from the first magnetic field component and the second magnetic field component by means of the evaluation unit, characterized in that - in a second alternative the transmitter is ferromagnetic and the magnetic field sensor (S1) includes a backbiased permanent magnet (PM), - the evaluation unit determines the length of the signal vector and compares it with a reference value to determine a deviation or a match, - if the first magnetic field component and the second magnetic field component match, a rotation angle of the control element (BD) about the axis of rotation (D) is determined, and - in case of deviation, a two-dimensional position of the control element (BD) in the first plane is determined based on the signal vector.

The utility model relates to tray positioning mechanism technical field discloses a tray positioning mechanism of patch board workstation, including mounting support, the bottom fixed connection leg of mounting support, the bottom mounting of connection leg has the support seat, this device sets up the auxiliary positioning mechanism, and the tray with ferromagnetic target piece enters the effective magnetic field range approximately, and the magnetic force can actively pull it to the position, realizes accurate positioning, and after positioning, through locking device auxiliary limit, and can start servo motor, and let the limit board corresponding face is pasted in the tray outside, has played the role of auxiliary positioning and limit, ensures that the positioning structure is stable, through setting up the stabilizing mechanism, when the connection leg of mounting support bottom and support seat fixed connection, conveniently complete the fixing of rotating frame position, let the rotating frame limit the top of reinforcing frame, and can reinforce the connecting part of connection leg and support seat, has played the purpose of improving support stability.

This invention provides a domain wall moving element and magnetic array with a high MR ratio and high domain wall controllability. The domain wall moving element of this embodiment includes: a magnetoresistive element having, sequentially from the side closest to the substrate, a reference layer, a non-magnetic layer, and a domain wall moving layer; a first magnetization fixing layer and a second magnetization fixing layer, respectively connected to and separated from the domain wall moving layer; the domain wall moving layer includes a ferromagnetic layer comprising multiple intercalation layers, the ferromagnetic layer containing Co and Fe, and having perpendicular magnetic anisotropy; during writing, a writing current flows along the domain wall moving layer between the first magnetization fixing layer and the second magnetization fixing layer.

The application belongs to the technical field of multiferroic materials, and relates to a design method of a multiferroic material based on a vanadium-doped two-dimensional ferroelectric body and the multiferroic material. Single-layer NbOI2 primitive cells are expanded in different directions to obtain supercells of different sizes. Vanadium is used as a doping element to dope the supercells of different sizes, and the doping configurations of each supercell under different doping concentrations are obtained. The doping configuration with the lowest total energy of the ferromagnetic state and the antiferromagnetic state under each doping concentration is used as the ground state configuration of the doping concentration. The band gap Eg and the spontaneous ferroelectric polarization intensity along the b-axis of the ground state configuration under different doping concentrations are calculated. A double-Y-axis curve graph is drawn with the doping concentration as the horizontal coordinate and the spontaneous ferroelectric polarization intensity and the band gap Eg as the vertical coordinate, and the multiferroic phase region and the magnetic semimetal phase region are divided. The doping concentration-physical property evolution phase diagram is obtained, so that the corresponding doping concentration value range of the ground state configuration with the multiferroic phase of ferroelectricity and antiferromagnetism is obtained to design the multiferroic material.

The application provides a heating device and a cooking equipment. The heating device comprises: a heating disc assembly configured to generate an alternating magnetic field; and a non-ferromagnetic conductor arranged on one side of the heating disc assembly and configured to generate an induced current in the alternating magnetic field and convert the induced current into heat; wherein the coupling resistance of the non-ferromagnetic conductor is greater than or equal to 0.5 ohm. By designing the non-magnetic conductor with specific electromagnetic coupling characteristics, the application utilizes the non-magnetic conductor to generate an induced current in the alternating magnetic field and convert the induced current into heat, thereby achieving direct electromagnetic heating of a non-ferromagnetic material pot, and further achieving compatible heating of ferromagnetic pots and non-metal pots, while avoiding the technical problems of increased volume, reduced energy efficiency and energy waste of the cooking equipment in the prior art.

The utility model discloses a kind of overturning magnetic separation devices for solid waste recovery, belong to solid waste recovery technical field, this overturning magnetic separation device for solid waste recovery, including two groups of first conveyor belt and second conveyor belt being arranged in parallel up and down, the top of first conveyor belt and second conveyor belt is respectively provided with first magnetic roller and second magnetic roller, the output end of first conveyor belt and the start of first conveyor belt are connected with a group of arc-shaped guide chute, the guide chute includes two groups of arc-shaped plate being arranged at equal intervals.Under the action of guide chute, the upper and lower layers of solid waste are turned over, and the upper and lower layers of the material are magnetically attracted and impurities are removed using two magnetic rollers, thereby fully removing the ferromagnetic impurities in the solid waste, which is beneficial to protect the equipment in the subsequent process and makes the production and processing safety higher.

The application discloses a kind of magnetic material for synchronously enriching glycopeptide and phosphopeptide and its preparation method and application.The nanomaterial Fe3O4@nSiO2@TiO2@mSiO2-L-Cys described in the application;The material includes successively from inside to outside: the magnetic core of ferriferrous oxide;Non mesoporous silica intermediate layer coated on the surface of the core;Titanium dioxide functional layer coated on the surface of the intermediate layer;And the outermost layer is the ordered radial dendritic mesoporous silica shell layer modified by L-cysteine;The preparation method described in the application adopts solvothermal method to synthesize magnetic core, functional layer is coated by hydrothermal reaction, co-condensation method is used to build mesoporous shell layer, and hydrophilic group is introduced by chemical grafting.The prepared magnetic material of the application is applied to the effective enrichment of glycopeptide and phosphopeptide in standard protease hydrolysis mixed liquor, and the detection sensitivity of phosphopeptide and glycopeptide reaches 0.1fmol / µL and 1fmol / µL respectively, which has wide prospect in glycopeptide and phosphopeptide proteomics analysis research.

A kind of long strip ferromagnetic component magnetizing device, including left shell and right shell being all half cylinder and being buckled to each other, left shell and right shell are hingedly connected in the same direction side, and are detachably connected in the same direction other side;Left shell and right shell all have half cylindrical mounting cavity, half cylindrical magnetic tile support plate and half cylindrical magnetizing assembly are arranged in mounting cavity, magnetic tile support plate is made of ferromagnetic material and is located the outside in mounting cavity, magnetizing assembly is adsorbed to the inside of magnetic tile support plate, magnetizing assembly includes first permanent magnet tile, second permanent magnet tile and third permanent magnet tile, the magnetic pole of first permanent magnet tile is located at its longitudinal direction both ends, the magnetic pole of second permanent magnet tile is located at its radial direction both sides, the magnetic pole of third permanent magnet tile is inclined, and first permanent magnet tile, second permanent magnet tile and third permanent magnet tile are mutually adsorbed.The utility model is used to obtain higher precision and better excitation planning effect under same body mass.

This application discloses a magnetically attached prefabricated wall panel and its installation method. The magnetically attached prefabricated wall panel includes multiple vertical joists, multiple base plates, and decorative panels. Each vertical joist is made of a ferromagnetic material. Magnets are provided on the side of both the first and second decorative panels facing the base plates. The first and second decorative panels are respectively magnetically attached to the two ends of the vertical joists along a third direction. The decorative panels of this magnetically attached prefabricated wall panel are easy to install and disassemble, improving construction efficiency, and the decorative panels can be reused.

The application provides a magnetic interference removal method and system based on a geological model forward, comprising: collecting multi-source data; solving magnetic interference compensation coefficients specific to each aircraft platform; using the magnetic interference compensation coefficients, combining a traditional magnetic interference compensation algorithm, and calculating and obtaining a residual magnetic field; collecting geological information of a region, measuring different geological units of a detection region, collecting data information, obtaining physical parameter information through ground physical property parameter measurement experiments, drilling core data measurement experiments and consulting physical property ranges of the same type of rock; establishing a three-dimensional geometric model of a geological body, and giving each geological body physical parameter information; using a magnetic field forward algorithm to calculate a regional geological magnetic field; subtracting the regional geological magnetic field from the residual magnetic field to obtain a final magnetic field removed from geological interference. The technical scheme of the application solves the technical problem that a traditional filtering or trend surface analysis method cannot effectively separate a geological magnetic anomaly from a magnetic signal generated by a ferromagnetic target.