224 results about "Magnetic tube" patented technology

An insertion type eddy current flaw detection probe that is capable of more accurately detecting flaws in magnetic tubes is provided. A method for inspecting magnetic tubes for flaws with high accuracy is also provided. A eddy current flaw detection probe comprises a cylindrical yoke (1), a plurality of detection coils (5) disposed around the central portion of the cylindrical yoke in the direction of a cylindrical axis thereof, first and second inner excitation coils (6) disposed on both sides of the plurality of detection coils in the direction of the cylindrical axis, and first and second permanent magnets (3, 4) disposed around the yoke on both sides of the first and second excitation coils in the direction of the cylindrical axis so that the direction of magnetizations thereof are parallel to the radial direction of the yoke and magnetic poles on the cylindrical yoke side thereof are different from each other.

The invention discloses a micro electromagnetic valve which comprises an electromagnetic coil, a movable iron core, a valve body and a plunger tube, wherein the electromagnetic coil comprises a magnetizer, a flux sleeve, a magnetic shield and a coil; the upper end of the movable iron core is sleeved with a spring, the lower end of the movable iron core is sleeved with a diaphragm, the cost of parts is reduced by removing a fixing iron core. When the movable iron core is absorbed, the top end of the movable iron core does not contact with the inner bottom of the plunger tube; the noise is removed; and the production cost is reduced. A sealing chamber is formed by the plunger tube and the valve body; the plunger tube and the valve are sealed by a sealing ring; the valve body is connected with the plunger tube in a riveting way, so that complexes of the threaded connection are reduced. Copper foam and scrap iron generated by threaded connection are avoided. The electromagnetic valve coil is connected with the plunger tube by a snap spring; the valve body and the electromagnetic valve coil are tightly resisted, so that the angle of the electromagnetic coil can be freely adjusted as required without shaking the adjusted angle, therefore, greater space can be selected on connection; and the micro electromagnetic valve is more flexible to use.

The invention relates to a dual-fluid magnetization foam dustfall system and method, and belongs to dustfall systems and methods for a coal mine. The dustfall system comprises a liquid pipeline and an air pipeline with certain pressure, wherein the liquid pipeline is composed of foaming liquid, and the air pipeline is composed of a pressure ventilation pipe under the shaft. The air pipeline is connected to a magnetization foaming device for foaming, the other pipeline is connected to a dual-fluid foam nozzle and used for spraying foam. The magnetization foaming device comprises a turbulent flow pipe and a shell. The turbulent flow pipe comprises a solution medium cavity, a medium mixing cavity and a communication hole in the flowing direction of a medium, and the solution medium cavity is communicated with the medium mixing cavity through the communication hole. The outer wall of the solution medium cavity of the turbulent flow pipe is wound by magnetic tubes or magnetized metal tubes, and a circle of magnets are arranged in the shell. Hemispheric spoilers provided with turbulent flow holes are evenly distributed in the outlet end of the medium mixing cavity. According to the dual-fluid magnetization foam dustfall method, the dustfall capacity of foam is improved through foam magnetization, and the jetting effect of the foam is improved by using the dual-fluid foam nozzle, so that dustfall efficiency is improved.

The invention discloses a heating unit for an electromagnetic heating type instant water heater. A heating portion is connected with a cooling portion through a joint pipeline. The heating portion comprises water flow passages, an integral aluminum casting layer and inductive heating tubes, the water flow passages and the inductive heating tubes are combined through the integral aluminum casting layer by means of aluminum casting, the integral aluminum casting layer is in an integrally hollow cylindrical structure, and the water flow passages surround the inductive heating tubes. The cooling portion comprises a magnetic tube supporting column, a coil support tube, outer end covers, a cooling water inlet nozzle and a cooling water outlet nozzle, the outer end covers are provided with through holes and mounted at two ends of the integral aluminum casting layer, the coil support tube is arranged on the outer end covers through the through holes and connected with the integral aluminum casting layer, the magnetic tube supporting column is mounted in the coil support tube, and two ends of the coil support tube are provided with the cooling water inlet nozzle and the cooling water outlet nozzle.

The invention discloses a manual magnetic solid extractor. The manual magnetic solid extractor comprises a gun body, a gun body head, an operating rod, a magnetic bar, a magnetic tube and a magnetic tube sleeve. The manual magnetic solid extractor is simple and convenient to use, is particularly suitable for separating and transferring magnetic materials in a 5 to 50mL of tubular vessel and is applicable to the research fields of immune cell separation, proteomics separation, immobilized enzyme, biomechanical engineering and the like.

The invention discloses a high-performanceradialorientation rare-earth permanent magnetic tube and a thermal-deformationforming method thereof, and belongs to the technical field of rare-earth permanent magnetic seamless tube manufacture. A raw-material component of the permanent magnetic tube is RE-(Fe,Co)-B, wherein RE is or one or more ofyttrium or lanthanide elements which are represented by Nd, and one or more other transition metal elements can be added at the same time; a horizontal loading horizontal-type rotation double-motion extrusion device of which a connecting angle alpha is greater than or equal to zero degree and smaller than or equal to 90 degrees is adopted, firstly, hot pressing is conducted on rapid-quenching magnetic powder to form a full-densityisotropousmagnet, then, horizontal positive shuntextrusion is conducted on the full-densityisotropousmagnet to form the radialorientation permanent magnetic tube, the tube length is greater than 50 mm, and the tube diameter is adjustable in a range of 0-150 mm.The horizontal extrusion technology overcomes the spatial height limit of a vertical device, the long-range rheological property improves the magnetism and microstructure uniformity of the permanent magnetic tube, the permanent magnetic tube of which the length, diameter and wall thickness can be freely adjusted in a large size range can be prepared, which is beneficial for the batch production of the radialorientation rare-earth permanent magnetic tube. Through conducting saw cutting on the permanent magnetic tube, nanometer rare-earth permanent rings, magnetic tiles and ceramic chips can be obtained.

The disclosed fluid magnetization tube comprises: a magnetic tube with axial-magnetized magnetic rings with opposite polarity between neighbor ones, space rings of non-ferric-magnetic material and an annular tube; a high-permeability guide magnetic tube coaxial with the magnetic tube and owned a flow channel, or another magnetic tube with two magnetic rings in one section with same height and opposite magnetized direction; some members with straight or curve axis for location, fixing and guiding flow; two cove boards on both ends contained arc channels of flat shape or cylinder face to locate the tubes on both radial and axial directions. The opposite magnetization device comprises a plurality of magnetization tubes parallel inserted in the shell, and two end cap grooves to connect near tubes in series or parallel or mixture. The magnetization system uses said magnetization device and normal pump and power gear device for fluid cycle magnetization, which has high efficiency, simple structure, variable forms, small volume, light weight, and low cost.

The invention relates to a hard magnetic linear nano coaxial cable wrapped by a soft magnetic tube and a preparation method thereof, belonging to the technical field of nana materials preparation. Thecoaxial cable is in a double-layer coaxial composite structure and comprises an internal linear nano magnetic core and an external tubular material, wherein the internal linear magnetic core consistsof FePt, CoPt or FeCoPt one-dimensional hard magnetic phase nano wire which is externally wrapped by Fe, Co Ni metal or alloy soft magnetic nano tube to form a FeCoNi/FeCoPt interchange spring nano coaxial cable. The preparation method comprises the following steps: firstly, preparing a soft magnetic alloy nano tube in a porous anode alumina template by adopting a template wetting method; and secondly, growing the nano wire in the nano tube by adopting an electrochemical deposition method. The invention has the advantages that the nano permanent magnet material in the true sense is obtained,and the preparation method is simple.

The invention provides a bird's nest identification method. The bird's nest identification method is characterized by adopting the nuclear magnetic resonance for detecting. The bird's nest identification method comprises the following steps: samples to be identified are pre-processed: the samples to be identified are grinded to fine powder; 1% of phosphoric acid water solution containing more than 10% of deuterium is added in the fine powder for implementing the water-bath heating in boiled water and centrifugating after cooling; supernate is taken into a 5 mm of nuclear magnetic tube; the nuclear magnetic tube is sealed; technical parameters are set; 1H-NMR spectrograms of the samples are acquired through a nuclear magnetic resonance spectrometer; the authenticity of bird's nests is judged through comparing the bird's nests with the 1H-NMR spectrograms of the samples to be identified. The method is simple and easily operated; the measurement of the analyzed samples has no need of exact precision; the pre-processing can be synchronously implemented for one batch of the samples; after the bird's nests are hydrolyzed, the nuclear magnetic detection is implemented for mixtures to obtain nuclear magnetic resonance hydrogen spectrums; the bird's nest identification method has the advantages of high precision, high speed, short sampling time and simple data analysis.

A liner motor based on radical magnetic tubes includes: a dynamicer (mover, QDZ) and a stator (STA), the structure of the stator (STA) is: a stator magnetic tube (SCG) is nested into the inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer can travel in the stator tube; the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; the sliders (HDZ) are installed on both ends of the dynamicer main body load.

The invention provides a method for identifying true and false beef and mutton. The method comprises the following steps: (1) immersing a meat sample to be detected in a solvent, and extracting; (2) separating the solvent from the meat sample to be detected to form an upper water layer and a lower chloroform layer, adding anhydrous sodium sulfate into the lower chloroform layer, shaking until the solution is clear, and absorbing residual water of the upper water layer by the anhydrous sodium sulfate; (3) transferring the dried chloroform layer to a nuclear magnetic tube for detection; (4) acquiring carbon NMR (nuclear magnetic resonance) data of the sample by a high-field NMR spectrometer, and exporting a nuclear magnetic spectrum diagram; (5) performing operations of the steps (1)-(4) on different types of animal meat, and establishing a carbon NMR fingerprint database of the different animal meat; and (6) determining the type of animal meat according to the data comparison of a characteristic fingerprint peak in a range of 172.0ppm-174.0ppm and a known animal carbon NMR fingerprint data through chemical shift. The method is simple and quick in operation and accurate in measurement, the pretreatment of the sample is simple, the result can be obtained by data fingerprint analysis, and data acquisition can be completed in any high-field NMR spectrometer.

The invention discloses a method for identifying olive oil and relates to identification of vegetable oil. The method comprises the following steps of: filling a liquid oil sample to be detected into a nuclear magnetic tube; adding a deuterated solvent into the nuclear magnetic tube to dissolve the sample, and mixing uniformly for later detection; acquiring data of 1H hydrogen spectrum and 13C carbon spectrum of the sample through a high-field nuclear magnetic resonance spectrometer; and performing data analysis through chemical shift information and peak area information of a nuclear magnetic spectrogram, calculating the relative contents of components of each main fatty acid in the sample, and obtaining an identification result through comprehensive judgment according to multiple indexes. The magnetic resonance identification method is easy to operate, accurate in measurement and high in repeatability; through nondestructive detection of the sample, the same sample can be used for repeated measurement or other analysis and test, and the measurement result is not influence by skills and judgment of operators; and the method is suitable for quick authenticity detection of the olive oil.

A spiral type self power generation flashlight comprises a light tube and a light cap connected with the light tube. Light sources are arranged in the light cap, a first spiral groove which is hollow is formed in the outer periphery of the light tube, a rotatable magnetic tube is arranged in the light tube, and a second spiral groove which is not hollow is formed in the outer periphery of the magnetic tube and arranged opposite to the first spiral groove. The first spiral groove and the second spiral groove are the same in rotating direction, shape and size. A coil conductor is arranged in the magnetic tube, and a sleeve is arranged on the light tube in a sleeved mode and can move back and forth in the axial direction of the light tube. At least on clamping pin is arranged on the outer periphery of the sleeve, penetrates through the first spiral groove and can move back and forth in the radial direction of the sleeve. A controller and a rechargeable battery are arranged in the light tube, wherein the controller is electrically connected with the coil conductor, and the rechargeable battery is electrically connected with the controller. The spiral sliding structure is adopted for generating power, and the sleeve can drive the magnetic tube to rotate to generate the power in the process of sliding upwards and downwards along the axis of the light tube, so that power generation efficiency is remarkably enhanced, a large amount of electric energy can be rapidly generated and stored in the rechargeable battery, and then the lighting time of the light sources is prolonged.

The invention discloses a two-position three-way solenoid valve. The two-position three-way solenoid valve includes a magnetic isolation tube, a fixed iron core and a pump body arranged in the magnetic isolation tube in an inserted mode, a pump core arranged in the magnetic isolation tube and placed between the fixed iron core and the pump body, and a winding coil; a pump core spring is arranged between the pump core and the fixed iron core, and the pump core can be driven to compress the pump core spring when the winding coil is energized; and a first one-way valve is arranged at the end, facing the pump body, of the pump core, a second one-way valve is arranged at the end, facing the pump core, of the pump body, and the first one-way valve and/or the second one-way check valve include mounting plates and diaphragms arranged on the mounting plates, wherein the diaphragms are of umbrella structures. The space required for assembling the one-way valve in the two-position three-way solenoid valve is reduced, the noise of the two- position three-way solenoid valve during operation is reduced, and stability of the pressure and flow rate of the two-position three-way solenoid valve during operation is improved.

The invention belongs to substance extraction equipment, in particular relates to an active constituent extractor for a natural substance, and aims to solve the defects of low active constituent extraction efficiency, long extraction time and high cost in the prior art. A small liquid box (5) is sleeved in a large liquid box (4); a circulation pump (1) is arranged on the lower part of the large liquid box (4); an inlet of the circulation pump (1) is connected with the bottom of the large liquid box (4); an outlet of the circulation pump (1) is connected with the upper part of the large liquid box (4); a temperature sensor (3) is arranged in the large liquid box (4); an ultrasonic amplitude transformer (6) and an ultrasonic transducer (7) are arranged on the upper parts of the large liquid box (4) and the small liquid box (5); a microwave generator (10) and an ultrasonic generator (9) are arranged on the upper part of a stander (11); and one end of the microwave magnetic tube (8) is connected with the microwave generator (10), and the other end of the microwave magnetic tube (8) is embedded on the side wall of the large liquid box (4). The active constituent extractor for the natural substance has the advantages that: by adopting a circulation liquid flow, microwave and ultrasonic combined extraction technology, the extraction rate is high, and the energy consumption is low.

The present invention provides high strength and high efficiency fluid magnetizing tube, magnetizing device and magnetizing system, and belongs to the field of fluid magnetizing technology. The fluid magnetizing tube includes a magnetic tube, a magnetic conducting tube, and a locating and guiding element to form one or several fluid channels and has straight or curved axis. The magnetic tube includes a magnetic ring, an isolating ring of non-ferromagnetic material and a duct; the magnetic conducting tube is high permeability duct or one other magnetic tube; and the end plates possess fluid channel. The magnetizing device includes a casing and several magnetizing tubes connected serially and/or in parallel. The magnetizing system has magnetizing device, conventional pump and power device to perform circular fluid magnetizing. The present invention has high strength axial and radial magnetic field and high fluid magnetizing efficiency.

The invention discloses a sensor for capturing the flowing out of molten slag in casting steal from steel ladle. The process of manufacturing the sensor is as follows. There are spiral shaped windingwrapped in insulating magnetic tube on channel of circular ring frame with I bar shape. Heat insulating material is filled around said windings, and fire clay is filled in the channel. After drying and shaping the semi-finished product, the high temperature cable with double core is welded to windings and the other end of cable is connected to the linker box on the shell of the steel container. The invented sensor only contains one spiral shaped winding and minimum two lead out wires so it possesses features of simple structure and lower cost. The sensor also can be used in metallurgy industry.