289 results about "Non magnetic" patented technology

[Object] To provide a Peltier element with an ultra-low thermal resistance heat flux sensor that is capable of detecting heat flow passing through the Peltier element at high speed and has negligible thermal resistance.[Solving Means] It has a structure in which an anomalous Nernst heat flux sensor 20 is formed directly on one or both of an upper part and a lower part of an insulating board that forms a Peltier element 10. The present invention is favorably characterized in that each fine line (22a) of a thermoelectric generator is formed of a magnetic material having residual magnetization even in absence of an external magnetic field and is magnetized in a direction orthogonal to a length direction of the fine line, and each fine line (23a) of a connector is formed of a ferromagnetic material that is magnetized in a direction opposite to a direction in which each fine line (22a) is magnetized, a magnetic material having a Nernst coefficient with an opposite sign to that of each fine line (22a), or a non-magnetic material.

In a coil component, a non-magnetic part is bridged between a first coil and a second coil in a cross section of an element body. Therefore, a magnetic flux in a direction along a magnetic core of the first coil and a magnetic core of the second coil is hindered by the non-magnetic part between the first coil and the second coil. Accordingly, a magnetic flux of the first coil and a magnetic flux of the second coil are difficult to interfere with each other.

The invention belongs to the technical field of non-magnetic material nondestructive testing, and discloses a non-ferromagnetic material thickness and conductivity synchronous measurement method based on eddy current phase characteristics, and the method comprises the specific steps: S1, estimating the conductivity and thickness range of a to-be-tested piece based on data such as a product specification or an industrial standard; s2, determining excitation frequency according to a frequency selection criterion (high frequency enables the skin effect depth to be smaller than 1 / 3 of the thickness, and low frequency enables the skin effect depth to be larger than two times of the thickness of the sample); s3, an eddy current method is adopted to obtain the impedance variable quantity phase of the to-be-measured non-ferromagnetic material; and S4, substituting the phases into corresponding simplified model formulas respectively, and obtaining the conductivity and the thickness at the same time. Aiming at the problems of multiple calibration, blindness in excitation frequency selection, low single-parameter measurement efficiency and the like in conductivity or thickness measurement by an existing eddy current method, double-parameter output of single measurement is realized, multiple calibration and inversion calculation are not needed, the calculation is simple, rapid and accurate, the hardware cost is low, and the applicability is wide.

The invention relates to the technical field of medical equipment electromagnetic compatibility performance detection, in particular to a hand controller electromagnetic environment pressing experiment device which comprises a control box, a Z-axis driving mechanism, a pressing device, an X-axis driving mechanism and a Y-axis driving mechanism. Control hardware is arranged in the control box; the two X-axis driving mechanisms are symmetrically arranged, the Y-axis driving mechanisms are arranged at the output ends of the two X-axis driving mechanisms, and the Z-axis driving mechanisms are arranged at the output ends of the Y-axis driving mechanisms; and the pressing device is arranged on the output end of the Z-axis driving mechanism and is used for realizing simulated pressing operation of the hand controller key. By adopting a completely non-magnetic material and a non-magnetic actuation principle, stable operation of the detection device in an electromagnetic environment is realized, the device not only can accurately position a key of the hand controller, but also can simulate a pressing operation in a real use scene, provides reliable technical guarantee for anti-interference performance detection of the hand controller, and is suitable for popularization and application. And the blank of the application of the existing detection technology in the electromagnetic environment is effectively filled.

To provide a wire rod which can suppress breakage during bending and maintain non-magnetic properties even after bending.SOLUTION: Provided is a wire rod having a chemical composition consisting of, by mass%, C: 0.50 to 1.10%, Si: 0.10 to 1.00%, Mn: 10.00 to 18.00%, P: 0.050% or less, S: 0.050% or less, and N: 0.005 to 0.035%, and the balance being Fe and impurities; wherein, in a cross section perpendicular to a length direction of the wire rod, the austenite structure has an area ratio of 98.00% or more and less than 100.00%, the carbide in the center has an area ratio of 0.05 to 2.00%, and the carbon segregation degree of the center segregation portion is 1.20 or less.SELECTED DRAWING: None

The invention discloses a FeNi soft magnetic composite material based on tetrabutyl orthosilicate hydrolysis coating and a preparation method of the FeNi soft magnetic composite material. According to the method, through a controllable sol-gel process, tetrabutyl orthosilicate is hydrolyzed to generate SiO2 gel, then a uniform and ultrathin SiO2 gel layer is generated on the surface of FeNi powder in situ, and then heat treatment densification is performed to obtain the FeNi soft magnetic composite material coated with SiO2 in an insulation mode. The SiO2 insulating layer is firmly combined with the matrix metal powder, the thermal stability is good, high frequency and high resistivity are achieved, and meanwhile dilution of non-magnetic relative magnetic performance is reduced to a great extent. The final magnetic core is obtained through compression molding and annealing heat treatment, has the excellent characteristics of high effective magnetic conductivity and low high-frequency magnetic core loss, and is particularly suitable for various efficient and miniaturized power electronic devices in the MHz frequency band.

The invention provides a two-dimensional material solar hydrogen production efficiency prediction method and device based on machine learning. The method comprises the following steps: reading a non-magnetic hexagonal crystal system single-layer material in a database to construct an initial data set; for samples with complete labels in the data set, training a single-layer material band edge position prediction model by adopting a feature engineering and gradient boosting decision tree algorithm; next, predicting and complementing samples with missing labels by using the trained model so as to generate a complete data set and further construct heterojunction double layers; carrying out data enhancement on a heterojunction sample of literature investigation through a CVAE-GAN hybrid architecture, and optimizing a feature vector; then training the new model by adopting a random forest algorithm to realize accurate prediction of the band edge position of the previously constructed heterojunction; and finally, the heterojunction type is judged in combination with a work function and a band edge position, the solar hydrogen production efficiency is calculated in batches by utilizing a program, and a high-efficiency heterojunction material is screened out.

Provided is a magnetic storage element comprising a first stack composed of: a storage layer formed from a ferromagnetic body; a first fixed layer formed from a ferromagnetic body; a first spacer layer that is sandwiched by the storage layer and the first fixed layer, and that causes antiferromagnetic exchange coupling between the storage layer and the first fixed layer; and a tunnel barrier layer that is provided to the opposite-side surface of the storage layer from the first spacer layer and that is formed of a non-magnetic body. The first stack is sandwiched by a first electrode and a second electrode.

A pole-piece unit of a magnetic gear includes a pole-piece support body having a connection part that is connected to each end of a plurality of pole pieces, and a radially extending part that extends from the connection part toward an inner side in a radial direction. A first yoke unit includes an end plate that is disposed on an end surface of a first body part in an axial direction, and faces the radially extending part with a predetermined gap therebetween in the axial direction. The end plate has a magnetic material part that is made of a magnetic material, and a non-magnetic material part that is made of a non-magnetic material and disposed on an outer side in the radial direction relative to the magnetic material part.

A package module includes a conductive coil; and a composite magnetic material covering the conductive coil, the composite magnetic material including: a magnetic filler including coated magnetic particles (MB) dispersed in the composite non-magnetic material (MA); and a falling film amount filler (MC) comprising falling film amount particles or rubber particles, or comprising a filler having-OH or-COOH functional groups.

The magnetic tape includes: a non-magnetic support; and a magnetic layer containing a ferromagnetic powder, in which a contact angle with water, which is measured on a surface of the magnetic layer, is 95° or more and 105° or less, and standard deviation σ of the contact angle in a width direction of the surface of the magnetic layer is 1.0° or less.

A composite magnetic material including a composite non-magnetic material (MA) and a magnetic filler (MB). The magnetic filler (MB) includes coated magnetic particles dispersed in the composite non-magnetic material (MA). The coated magnetic particles (MB) include magnetic metal particles (MB1) that are surface coated with an insulation coating layer (MB2). The composite magnetic material provides a high relative magnetic permeability no lower than 13 at a frequency of no greater than 200 MHz.

The utility model relates to the technical field of material production and processing, and discloses a feeding device and a material pulverizer. The first section of the feeding pipe is communicated with the pulverizer body, the second section of the feeding pipe is filled with materials, the first section of the gas path pipeline is communicated with the feeding pipe, and an outlet of the first section of the gas path pipeline and an outlet of the first end of the feeding pipe are located on the same axis, so that compressed gas flowing out of the gas path pipeline is horizontally blown to the outlet of the first end of the feeding pipe; and materials in the feeding pipe are fed into the crusher body to be crushed. According to the feeding device, the use of non-magnetic materials is reduced, so that the introduction of non-metal foreign matters caused by abrasion is avoided, the product quality is ensured, in addition, the arrangement of a spiral device is reduced, the accumulation of materials at dead angles of the structure is avoided, the blockage of the materials is avoided, the feeding efficiency is ensured, and the production efficiency is improved.

Provided is a magnetic recording medium comprising a non-magnetic support and a magnetic layer containing ferromagnetic powder, and further comprising a non-magnetic layer containing non-magnetic powder between the non-magnetic support and the magnetic layer. The average pore diameter of the magnetic layer and the non-magnetic layer is 30.0 nm or less, and the standard deviation of the pore diameter distribution of the magnetic layer and the non-magnetic layer is 30.0 nm or less.

To provide a magnetic head and a magnetic recording device capable of improving recording density. According to an embodiment, a magnetic head includes a pole, a shield, and a non-magnetic layer. The non-magnetic layer is disposed between the pole and the shield. The non-magnetic layer is in contact with the pole and the shield. The non-magnetic layer contains at least one first element selected from Cu, Au, Cr, V, Al, and Ag.

The invention relates to a silica ore dressing method which comprises the following steps: step 1, crushing raw ore of silica ore, step 2, grinding the crushed silica ore by adopting a ball mill, step 3, carrying out graded desliming treatment on the ground silica ore by using a hydrocyclone, step 4, carrying out weak magnetic separation on the deslimed silica ore, and step 5, carrying out magnetic separation on the deslimed silica ore. And 5, the non-magnetic material subjected to weak magnetic separation is subjected to strong magnetic separation, and silica concentrate is obtained. Before the ore is subjected to strong magnetic separation, strong magnetic minerals are removed through weak magnetic pre-separation, the strong magnetic separator is effectively prevented from being blocked, the operation stability and the production continuity of equipment are improved, various magnetic impurity minerals including intergrowth particles can be removed to the maximum extent through the whole technological process, and the production efficiency is improved. Such as hematite, limonite, biotite, ilmenite, pyrite and garnet.

A layered structure includes a non-magnetic layer, an upper soft magnetic layer, a lower soft magnetic layer, and a coupling soft magnetic layer. The upper soft magnetic layer is in contact with atop surface of the non-magnetic layer. The lower soft magnetic layer is in contact with a bottom surface of the non-magnetic layer. The coupling soft magnetic layer is coupled to the upper soft magnetic layer and the lower soft magnetic layer. The coupling soft magnetic layer is in contact with a first side surface and a second side surface of the non-magnetic layer. The first side surface and the second side surface are spaced from each other.

A high-power, high-temperature-stability M-type strontium ferrite belongs to the field of ferrite material preparation technology. The ferrite comprises a main formulation of SrCO3, La2O3, CaCO3, MnO, SnO2, Fe2O3, and Co2O3, and additives composed of CaCO3, SiO2, H3BO3, and La2O3. This invention introduces Sn-Mn ions for co-substitution, thereby constructing a Sn... 4+ -Mn 2+ The charge balance mechanism effectively suppressed the Fe ionization induced by the introduction of high-valence ions. 3+ To Fe 2+ Price change behavior, effective compensation after replacement due to the introduction of non-magnetic Sn 4+ This results in a loss of lattice magnetic moment. Simultaneously, through a stepped pre-sintering and sintering process, a CoFe2O4 hard magnetic spinel phase is induced to precipitate in the M-type strontium ferrite main phase. The negative coercivity temperature coefficient of the CoFe2O4 phase complements the inherent positive temperature coefficient of the matrix.

A magnetic memory device may include a magnetic track that extends in a first direction. The magnetic track may include a lower magnetic layer that extends in the first direction, an upper magnetic layer that extends in the first direction on the lower magnetic layer, a spacer layer that extends in the first direction between the lower magnetic layer and the upper magnetic layer, and a non-magnetic pattern that penetrates the upper magnetic layer and is on the spacer layer. The non-magnetic pattern has a first junction surface that is in contact with a first portion of the upper magnetic layer, and a second junction surface that is in contact with a second portion of the upper magnetic layer. The lower magnetic layer and the upper magnetic layer are antiferromagnetically coupled to each other by the spacer layer.

The present invention provides a magnetic tape having a non-magnetic support and a magnetic layer containing a strong magnetic powder, in a small-angle X-ray scattering spectrum of the non-magnetic support obtained by small-angle X-ray scattering measurement, in a region where q is 0.5 to 1.5 A-1, a ratio of a scattering intensity I at a q value q max at which a maximum of a rate of change of the scattering intensity is present to a scattering intensity I max at which a minimum of the rate of change of the scattering intensity is present is 2.7 or more, q min < 1.5 A-1 min < 0.5 A-1 max < 0.5 A-1 min < 0.5 A-1 min < 0.5 A-1 max and a glass transition temperature Tg of the non-magnetic support is 140°C or more, a magnetic tape cartridge including the magnetic tape, and a magnetic recording and reproducing apparatus.

The application belongs to the field of soft magnetic high-entropy alloy materials and magnetron sputtering technology, and particularly relates to a high-entropy soft magnetic film preparation method and film with high resistivity and cutoff frequency, which comprises the following steps: preparing a high-entropy alloy target and a zinc oxide target; selecting a non-magnetic material with high resistivity as a substrate; after cleaning the target and the substrate, performing double-target-position film magnetron sputtering on the target and the substrate by using the high-entropy alloy target and the zinc oxide target; the sample table is provided with multiple substrates, and the high-entropy soft magnetic alloy target and the ZnO target are arranged below; and the high-entropy soft magnetic film and the ZnO composition gradient-induced soft magnetic film are sputtered on the surface of the substrate. The application adopts composition gradient sputtering ZnO to control the film performance, further improves the resistivity, and obtains the high-entropy soft magnetic film with higher cutoff frequency under the action of strong inverse magnetic electric coupling and the large stress-induced Hk.

This invention relates to the field of iron tailings grade detection technology, and discloses an iron tailings grade detection device and method. The iron tailings grade detection device includes a control box body and a magnetic separator, and further includes an extraction tube axially arranged inside the magnetic separator. Two scraping grooves are fixedly connected to the outer wall of the closed end of the extraction tube. A drive unit is installed on the side of the magnetic separator near the feed inlet, which drives the scraping grooves to rotate within the magnetic separator. A self-opening control mechanism is provided at the open end of the extraction tube. When the drive mechanism drives the scraping grooves to rotate, it scrapes magnetic iron minerals to the non-magnetic field area. After the extraction tube is connected to the drain pipe, the magnetic iron minerals are discharged to the outside with clean water. This design allows the equipment to intermittently extract magnetic iron minerals without stopping the machine, avoiding excessive accumulation of magnetic iron minerals in the magnetic field area and thus preventing the mixing of non-magnetic particles, improving the purity of the magnetic iron minerals, and enabling continuous separation of magnetic iron minerals, thereby improving detection efficiency.

A composite magnetic material and a method for forming a composite magnetic material. The composite magnetic material includes a composite non-magnetic material (MA) and a magnetic filler including coated magnetic particles (MB) dispersed in the composite non-magnetic material (MA). The coated magnetic particles (MB) are surface coated with an insulation coating layer (MB2) that contains elements Silicon (Si), Carbon (C), and Oxygen (O).

The present application provides a magnetic layer having a coercive force Hc of 2.00 kOe or more and a residual magnetization Mrt per unit area of 2.00 memu / cm2 or more, which is achieved without using a non-magnetic underlayer for promoting in-plane orientation of the magnetic layer and without performing heat deposition 2 The above in-plane magnetization film, in-plane magnetization film multilayer structure, hard bias layer, magnetoresistance effect element, and sputtering target. The in-plane magnetization film has: a preliminary magnetic layer (12A) containing Co, Pt, and a non-magnetic grain boundary material and having a thickness of 1 to 32 nm; and a magnetic layer main portion (12B) formed on the preliminary magnetic layer (12A) and containing Co, Pt, and a non-magnetic oxide, the above non-magnetic grain boundary material of the preliminary magnetic layer (12A) containing at least one of a Zn oxide and a Ta oxide.

A non-magnetic one-component toner includes a toner particle. The toner particle includes a toner base particle and an external additive. The external additive includes a silica particle and a fluorine-containing particle. In predetermined printing in which a standard test page image defined in ISO 19752 is printed on 1000 sheets of recording media, a content Si0 of the silica particles in the toner particles before the predetermined printing and a content Si1000D of the silica particles in the toner particles in a development unit after the predetermined printing satisfy a formula (1) “0.5 Si1000D / Si0≤1.0”, and a content F0 of the fluorine-containing particles in the toner particles before the predetermined printing and a content F1000D of the fluorine-containing particles in the toner particles in the development unit after the predetermined printing satisfy a formula (2) “1.0≤F1000D / F0≤1.5”.

The utility model relates to a parallel-distributed multi-roller magnetic separator for purifying magnetic materials, which comprises a feeding mechanism, a material conveying mechanism, a plurality of groups of roller mechanisms, a collecting mechanism, a driving system and a rack, the feeding mechanism is mounted in front of the roller mechanisms and on the material conveying mechanism, and the feeding mechanism is detachably connected with the rack; the multiple sets of roller mechanisms are sequentially arranged in parallel in the discharging direction, the roller mechanisms are detachably connected with the rack, the material conveying mechanism is located at the bottoms of the roller mechanisms and detachably connected with the rack, and the collecting mechanism is located at the junction of a magnetic area and a non-magnetic area between the material conveying mechanism and the roller mechanisms. The collecting mechanism is detachably connected with the rack, the driving system is fixedly connected with the rack, and the driving system provides power for the feeding mechanism, the material conveying mechanism, the multiple sets of roller mechanisms and the collecting mechanism; the magnetic separation device has the technical effects of efficient separation and improvement of magnetic separation precision.

A domain wall displacement element includes a magnetoresistance element which has a reference layer and a domain wall displacement layer each containing a ferromagnetic body, a non-magnetic layer, and first and second magnetization fixed layers which are in contact with the displacement layer, wherein the first layer has a first region in contact with the displacement layer, a non-magnetic first intermediate layer, and a second region contacting the first intermediate layer, the first region has a first ferromagnetic layer contacting the first intermediate layer, the second region has a second ferromagnetic layer contacting the first intermediate layer, the first and second ferromagnetic layers are ferromagnetically coupled, a ferromagnetic layer closest to the displacement layer in the first region and a ferromagnetic layer closest to displacement layer in the second magnetization fixed layer have the same film configuration, and the first and second regions are different in film configuration.

The invention relates to a sensor device (1) comprising a transducer (3) adapted to generate a magnetic field (MF), the sensor device (1) being configured to measure a beating gap (G) between a first refining disc (5) and a second refining disc (7) of a refiner arrangement (9) and to be mounted in the first refining disc (5), the sensor device (1) comprising a magnetic pole (13), a coil assembly (15) and a measuring head (11') configured to be set in a calibration position relative to the second refining disc (7) for calibration of the sensor device (1). The measuring head (11') comprises an outer end (10') made of a non-magnetic material configured to be positioned in abutment with the second refining disc (7) in a calibration sequence. The invention also relates to a method of calibrating said sensor device (1).

A magnetoresistive effect element includes a first ferromagnetic layer, a second ferromagnetic layer, a non-magnetic layer disposed between the first ferromagnetic layer and the second ferromagnetic layer, and an additive-containing layer disposed at any position in a laminating direction, at least one of the first ferromagnetic layer and the second ferromagnetic layer is a Heusler alloy containing at least one of boron and carbon, at least part of which is crystallized, and the additive-containing layer is a non-magnetic layer containing at least one of boron and carbon, and any one element selected from the group made of Ti, V, Cr, Cu, Zn, Zr, Mo, Ru, Pd, Ta, W, Ir, Pt and Au.