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42results about How to "Adjustable magnetic field strength" patented technology

Overflow-discharge-type magnetic hydrocyclone

The invention relates to an overflow-discharge-type magnetic hydrocyclone. The technical scheme is that the lower end of an overflow tube (3) is positioned on the middle part or the lower part of a cylinder body (9); the upper end of a central magnetic bar (5) is welded on a port at the lower end of the overflow tube (3) through 2-4 connecting fins (4); the lower end of the central magnetic bar (5) is in flush with the lower end of an upper conical body (8), and the diameter of the central magnetic bar (5) is 0.2-0.3 times of the inner diameter of the overflow tube (3); the overflow tube (3), the connecting fins (4), the central magnetic bar (5), the upper conical body (8) and the cylinder body (9) all adopt magnetic materials; a top cover (11), an ore feeding block (10) and a lower conical body (7) all adopt nonmagnetic materials; one ends of four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the overflow tube (3) extending out of the top cover (11), and the other ends of the four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the cylinder body (9); and the U-shaped iron covers (2) wound with the coils are arranged in a 'cross-shaped' central symmetrical mode. The overflow-discharge-type magnetic hydrocyclone provided by the invention has the advantages of low cost, energy consumption conservation, long service life, convenience in operation, high classification efficiency and adaptability to industrial application.
Owner:WUHAN UNIV OF SCI & TECH

Lung-clearing and phlegm-eliminating device for old people

The invention discloses a lung-clearing and phlegm-eliminating device for old people, and relates to the technical field of medical instruments of a respiratory medicine department. The lung-clearingand phlegm-eliminating device for old people comprises a wearing unit, a vibrating unit and a phlegm suction unit; the wearing unit comprises a wrapping bag which surrounds the chest of a human body;bag cavities are filled with shear thickening fluid; the vibrating unit comprises a positioning plate; a plurality of inner threaded tubes are mounted on the positioning plates in the front-back direction in a penetrating manner; the rear end of an adjusting column is fixedly connected with a pressure spring; the other end of the pressure spring is fixedly connected with a knocking box; an electromagnet is fixedly mounted in the knocking box; the phlegm suction unit comprises a tool table and a negative-pressure pump; the periphery of the head of the phlegm suction tube is uniformly connectedwith rubber tubes; and the rubber tubes are filled with magnetic powder. The lung-clearing and phlegm-eliminating device for old people has the beneficial effects that by cooperation of rapid high-frequency knocking and the shear thickening fluid, a patient can be protected well and vibration is transmitted, airway stimulation is enhanced, and a phlegm-eliminating treatment effect is improved.
Owner:南京一正医疗科技有限公司

Transfer device with magnetic field drying device

The present invention relates to a transfer device with a magnetic field drying device, and particularly to a cold foil transfer device and a corresponding transfer method. When cold foil transfer is performed, adhesive is applied on a substrate (4) and the adhesive passes through a transfer gap (13) together with the transfer coil (11), wherein, a transfer layer is transferred to the substrate (4) from the transfer coil (11) under a pressure function according to adhesive arrangement. For durably connecting with the substrate (4), the adhesive is heated or activated through a UV heating device. Adverse effect occurs because of heat. According to the transfer device, magnetic field dryers (17,17',17'') are equipped and magnetic adhesive (3) is used as the adhesive, wherein the magnetic adhesive can be activated through the magnetic field dryers (17,17',17''). Therefore the adverse heat induction can be prevented.
Owner:HEIDELBERGER DRUCKMASCHINEN AG

Pulse magnetic field generator and working method thereof

The invention relates to a pulse magnetic field generator and a working method thereof. According to the pulse magnetic field generator, a single chip microcomputer outputs a direct current voltage through a D / A converter; a single-phase full-isolation rectifying and voltage regulating module is controlled by the direct current voltage to output a pulsating direct current voltage; the pulsating direct current voltage passes through a choking coil and a filtering capacitor and then charges an energy storage capacitor; the single chip microcomputer controls an electric bridge driver I through an optocoupler I and then controls the conduction of an IGBT1 and an IGBT3 to complete a forward pulse discharging process in one time; the single chip microcomputer controls an electric bridge driver II through an optocoupler II and then controls the conduction of an IGBT2 and an IGBT4 to complete a backward pulse discharging process in one time; and parameters are set through operating keys and displayed through a display screen. By virtue of the pulse magnetic field generator, internal residual stress of a metal structural part can be eliminated or relieved, and meanwhile, the service life can be prolonged, the impact resistance and abrasion performance can be improved, and the pulse magnetic field generator also can be used in the fields of workpiece demagnetization and the like.
Owner:葛露露

Medium-low energy electron beam calibration device for detector and calibration method thereof

The invention relates to a medium-low energy electron beam calibration device for a detector and a calibration method thereof. The device comprises a beta radioactive source, a dipolar magnet, a slitassembly, a vacuum system and a to-be-calibrated detector; the vacuum system comprises a vacuum bent pipe, a vacuum target chamber and a vacuum pump, and the vacuum pump is connected with the vacuum target chamber; the beta radioactive source is fixedly arranged on the end surface of a connecting rod, and the connecting rod is controlled by a stepping motor, so that the distance between the beta radioactive source and an incident port of the dipolar magnet is adjustable; the dipolar magnet is arranged at the bent part of the vacuum bent pipe; the slit assembly is arranged at an exit port of the dipolar magnet, and a detector to be calibrated is arranged in the vacuum target chamber and is close to the back of the slit assembly. A beta radioactive source is used for generating medium and low energy electrons, the magnetic field intensity of a dipolar magnet and the width of a slit are set, the energy and momentum dispersion of the electrons are selected, and a quasi-single-energy electron beam meeting requirements is obtained and used for detector calibration. The device and device can be widely applied to the field of medium-low-energy electron beam calibration.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

A multifunctional magnetic grinding machine

The invention discloses a multifunctional magnetic grinding machine. The multifunctional magnetic grinding machine comprises a grinding cylinder, a magnetic ferrule, a main through pipe, a collection tank and a cleaning fluid tank. A coil is arranged in a hollow portion of a magnetic ferrule body and is connected with a high-frequency power source. The grinding cylinder is arranged in a ring of the magnetic ferrule. A first cylinder bottom is arranged at the bottom of the grinding cylinder, and a second cylinder bottom is arranged at the bottom of the first cylinder bottom. A plurality of supports are arranged at the bottom of the grinding cylinder. The collection tank is arranged below the grinding cylinder. The main through pipe extends into the grinding cylinder and comprises a plurality of branch pipes in the grinding cylinder. An air inlet pipe and a liquid inlet pipe are connected to the top of the main through pipe. An air inlet control valve is arranged on the air inlet pipe. A fan is connected to the end of the air inlet pipe. A heating block is arranged in the fan. A liquid inlet control valve is arranged on the liquid inlet pipe. A water pump is connected to the end of the liquid inlet pipe and is arranged at the bottom of the cleaning fluid tank. The multifunctional magnetic grinding machine has the advantages that the main through pipe extends into the grinding cylinder, a grinding needle is enabled to grind workpieces under the joint action of air flow and a magnetic field, and accordingly, grinding effect is good.
Owner:ZHEJIANG RONNIE PRECISION MACHINE

Flexible printed circuit board and magnetic field coil manufacturing method based on the printed circuit board

Flexible printed circuit board and magnetic field coil manufacturing method based on the printed circuit board are disclosed, the method employs a flexible printed circuit board of one structure andthree layouts to realize the series-parallel adjustable magnetic field coils according to different combinations, thus the magnetic field coils with different magnetic field intensities can be conveniently manufactured. At the same time, by changing the number of series-parallel magnetic field coils, the total current demand for magnetic field coils can be changed, and the restriction on the supply current source can be reduced. The implementation of the method first requires a flexible printed circuit board, The circuit board consists of front and back coils, and the projection structure of the two coils is the same. According to the difference of the circuit board pads, the circuit board is divided into three types. The series and parallel combination of the magnetic field coils is realized by different combinations of the three types of circuit boards, so as to realize the magnetic intensity adjustment of the magnetic field coils. The magnetic field coil manufactured by the method provided by the invention has the advantages of regular structure and good consistency. Magnetic field coil magnetic field intensity is adjustable and power supply total current demand is adjustable.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES

Dry ore dressing apparatus and its magnetic separating unit

The magnetic separating unit includes one power mechanism with speed reducer, one rotating magnetic yoke inside the casing with scrapers, several static magnetic yokes around the rotating magnetic yoke and on the casing. The dry ore dressing apparatus with the magnetic separating unit has the oppositely configured like magnetic poles, discharge passage set in the zero-magnetism area between magnetic poles, ring interval around the driving shaft and between the static magnetic yokes and the rotating magnetic yoke, and exciting winding connected to the controllable power source on the static magnetic yokes.
Owner:宝丽恒通(天津)科技股份有限公司

Stiffness-adjustable grinding device and using method

The invention provides a stiffness-adjustable grinding device and a using method. The stiffness-adjustable grinding device comprises a motor for providing power; a switch used for controlling the motor to start is mounted on the motor; a grinding wheel or a grinding belt used for grinding is mounted on an output shaft of the motor; a grinding area on the grinding wheel or the grinding belt is divided into a plurality of layers by adopting a rubber material; the intermediate layer adopts a hydraulic layer or a pulse layer which can produce instantaneous acting force; the remaining layers are the stiffness layers that can provide different grinding stiffness; the hydraulic layer or the pulse layer are respectively connected with a hydraulic device or a pulse device correspondingly; a convexstructure used for enhancing a grinding effect is arranged on the surface of the grinding wheel and the grinding belt; the outer surface of the convex structure is wrapped with a flexile material layer; and by changing the grinding material of the stiffness layer in real time, the object can be polished by fine adjustment of appropriate stiffness. Compared with a common grinding device, the stiffness-adjustable grinding device has wider practicality and economic benefits, and better meets the grinding requirements required by production and living.
Owner:CHINA THREE GORGES UNIV

Preparation method and construction method of diatom ooze environment-friendly wall material for building decoration

The invention relates to the field of preparation of environment-friendly wall materials, and discloses a preparation method and a construction method of a diatom ooze environment-friendly wall material for building decoration. The preparation process comprises the following steps: (1) supporting sodium carbonate powder; (2) preparing an capsule material emulsion; (3) preparing diatomaceous earth,nano ferrite and the capsule material emulsion into a mixed solution; (4) carrying out drying at a constant temperature to obtain microcapsules; and (5) uniformly dispersing and mixing the microcapsules with glass fibers, a coupling agent, a binding agent, active clay and pigment. The construction method comprises the following steps: (1) preparing a paste-like coating, and brushing a wall surface with the paste-like coating; (2) applying a high-frequency alternating magnetic field; (3) spraying a citric acid solution; and (4) carrying out drying. According to the invention, through the addition of the high-frequency alternating magnetic field, magnetic particles embedded into a capsule material generate a magneto-thermal effect, and the temperature-sensitive capsule material is induced to be broken rapidly, so that the construction condition of the diatom ooze is improved. The diatom ooze wall material releases sodium carbonate to react with citric acid, and gas is generated, so thatthe pores of the diatomaceous earth are prevented from being blocked, and the adsorption and purification effects are remarkably improved.
Owner:CHENDU NEW KELI CHEM SCI CO LTD

Electromagnetic auxiliary grabbing device

The invention provides an electromagnetic auxiliary grabbing device. The electromagnetic auxiliary grabbing device comprises a base, a mechanical arm, an electromagnetic detector and an upper computer; the base is installed on a moving device, and the moving device drives the base to move in a multi-axis mode; the mechanical arm comprises a plurality of mechanical arms distributed on the base, each mechanical arm is composed of a driving arm and a driven arm which are connected in a hinged mode, the driving arms are installed on the base, clamping jaws are detachably installed at the tail ends of the driven arms, and electromagnets are carried on the clamping jaws; the electromagnetic detector is installed on at least one clamping jaw and connected with the electromagnets, and if the electromagnetic detector senses that an object clamped by the clamping jaw is metal, the electromagnets are conducted for auxiliary fixing; and the upper computer is connected with the moving device and the mechanical arm and used for controlling the moving device to drive the base to move and controlling the grabbing operation of the mechanical arm. The electromagnetic detector is used for detecting whether the grabbed object is metal or not, and if the grabbed object is metal, the electromagnets are started to provide auxiliary grabbing for attracting ferromagnetic substances.
Owner:SHANGHAI DIANJI UNIV

Inner and outer double-layer magnetic ring structure and preparation method thereof

The invention discloses an inner and outer double-layer magnetic ring structure. The structure comprises an outer-layer magnetic ring and an inner-layer magnetic ring, the outer-layer magnetic ring is cylindrical, a central air gap is formed in the axis position of the outer-layer magnetic ring, and the central air gap is a working space of a magnetic field system; and the inner-layer magnetic ring is arranged in the central air gap. The invention further discloses a preparation method of the inner and outer double-layer magnetic ring structure. The problem of magnetic leakage of the magnetic refrigeration test system is solved, the magnetic field defined by the inner-layer magnetic ring and the outer-layer magnetic ring has multiple layers, no magnetic leakage exists in the center, and the direction and size of the magnetic field of the magnetic refrigeration test system are adjusted through rotation of the inner-layer magnetic field and the outer-layer magnetic field.
Owner:BAOTOU RES INST OF RARE EARTHS

Dry tail ore dressing apparatus

The dry tail ore dressing apparatus includes one feeder and features its magnetic dressing units connected serially through connectors and driven with one speed reducing power mechanism. The feeder to feed wind and dressed material into the magnetic dressing units possesses feeding port communicated to the material channels of the magnetic dressing units, and all the material channels form one common vertically communicated material passage.
Owner:天津市新源电气科技有限公司

Lung-clearing and sputum-expelling device for the elderly

The invention discloses a lung-clearing and sputum-expelling device for the elderly, and relates to the technical field of respiratory medical instruments. The lung-clearing and sputum-expelling device for the elderly comprises a wearing unit, a vibration unit and a sputum suction unit. The wearing unit comprises a positioning plate and a wrapping garment surrounding the human chest; at that rearend of the position plate, a protection bag is arranged; a plurality of bag cavities are uniformly sewn in the protection bag; the bag cavity is filled with a shear thickening liquid; a plurality of threaded holes are arranged through the positioning plate; the vibration unit comprises a mounting pipe threadably connected with a threaded hole; an electromagnet is fixedly installed in the front part of the mounting pipe; a compression spring is fixedly connected with the rear end of the electromagnet; the rear end of the compression spring is fixedly connected with a knocking column; the sputumsuction unit comprises a tool table and a negative pressure pump; a rubber tube is uniformly connected with the periphery of the head of the sputum suction tube; the rubber tube is filled with magnetic powder. The invention has the beneficial effects of better protecting patients and transmitting vibration, enhancing airway stimulation and improving sputum expulsion treatment effect by using thecooperating of rapid high-frequency knocking and shear thickening liquid.
Owner:THE PEOPLES HOSPITAL SHAANXI PROV

Sputtering equipment and method capable of adjusting film stress

The invention provides sputtering equipment and method capable of adjusting film stress. The equipment comprises a cavity, a magnetron sputtering device, a baffle, a wafer pressing ring, a base and an electromagnetic coil module; one end of the wafer pressing ring is adjacent to the baffle, and the other end of the wafer pressing ring extends above the edge of the base; the base is connected with a grid bias power supply; the electromagnetic coil module is located in the base and / or between the wafer pressing ring and the base and comprises a plurality of electromagnetic coil sets, each electromagnetic coil set comprises an N-pole electromagnet and an S-pole electromagnet, the N-pole electromagnet in the single electromagnetic coil set is adjacently arranged on the left side of the corresponding S-pole electromagnet, and the N-pole magnetic pole face of each N-pole electromagnet and the S-pole magnetic pole face of each S-pole electromagnet face upwards or downwards at the same time; and in the sputtering process, the plurality of electromagnetic coil sets are divided into a plurality of power-on units, the plurality of power-on units are sequentially and alternately powered on and powered off in the clockwise or anticlockwise direction, so that a film is deposited on the surface of a substrate, and the film stress is adjusted. According to the sputtering equipment and the method capable of adjusting the film stress, and the film thickness and stress distribution uniformity can be improved.
Owner:BETONE TECH SUZHOU INC

Overflow-discharge-type magnetic hydrocyclone

The invention relates to an overflow-discharge-type magnetic hydrocyclone. The technical scheme is that the lower end of an overflow tube (3) is positioned on the middle part or the lower part of a cylinder body (9); the upper end of a central magnetic bar (5) is welded on a port at the lower end of the overflow tube (3) through 2-4 connecting fins (4); the lower end of the central magnetic bar (5) is in flush with the lower end of an upper conical body (8), and the diameter of the central magnetic bar (5) is 0.2-0.3 times of the inner diameter of the overflow tube (3); the overflow tube (3), the connecting fins (4), the central magnetic bar (5), the upper conical body (8) and the cylinder body (9) all adopt magnetic materials; a top cover (11), an ore feeding block (10) and a lower conical body (7) all adopt nonmagnetic materials; one ends of four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the overflow tube (3) extending out of the top cover (11), and the other ends of the four U-shaped iron cores wound with coils (1) are respectively welded on the outer wall of the cylinder body (9); and the U-shaped iron covers (2) wound with the coils are arranged in a 'cross-shaped' central symmetrical mode. The overflow-discharge-type magnetic hydrocyclone provided by the invention has the advantages of low cost, energy consumption conservation, long service life, convenience in operation, high classification efficiency and adaptability to industrial application.
Owner:WUHAN UNIV OF SCI & TECH

Magnet control system for magnetron sputtering device

The present invention relates to a system, for controlling a magnet, which can be used for a magnetron sputtering device. A magnet control system for a magnetron sputtering device of the present invention comprises: a driving power unit; a magnetism generation unit comprising a plurality of magnet arrays; and a magnetism control unit comprising a switch for controlling one or more of the pluralityof magnet arrays such that the magnet arrays can be selectively connected to the driving power unit.
Owner:ULVAC KOREA

Adjustable spectrum correction system and method

The invention belongs to the technical field of interferometer systems, and particularly relates to an adjustable spectrum correction system and method. The system comprises a swing device, a swing driving device, a control circuit device and a high-frequency working device. The method comprises the following steps: S1, inputting triangular wave current, and judging whether an interference peak is centered or not; if not, turning to the step S2; s2, starting bias adjustment, and judging whether the first data separator is A or B; s3, if the data separator is A, determining the data separator as a rising edge, and if the swing arm deviates leftwards, increasing a bias parameter; if the swing arm deviates rightwards, the bias voltage parameter is reduced; s4, if the data separator is B, determining the data separator as a falling edge; if the swing arm deviates leftwards, the bias voltage parameter is reduced; if the swing arm deviates rightwards, the bias voltage parameter is increased; and S5, when the position of the swing arm after deviation rectification is in the middle, the deviation rectification process is completed. The device has the advantages that environment vibration can be counteracted, and the magnitude of current can be adjusted according to the inclined ground, so that the swing arm is centered.
Owner:HANGZHOU CHUNLAI TECH

Flexible printed circuit board and manufacturing method of magnetic field coil based on the printed circuit board

Flexible printed circuit board and magnetic field coil manufacturing method based on the printed circuit board are disclosed, the method employs a flexible printed circuit board of one structure andthree layouts to realize the series-parallel adjustable magnetic field coils according to different combinations, thus the magnetic field coils with different magnetic field intensities can be conveniently manufactured. At the same time, by changing the number of series-parallel magnetic field coils, the total current demand for magnetic field coils can be changed, and the restriction on the supply current source can be reduced. The implementation of the method first requires a flexible printed circuit board, The circuit board consists of front and back coils, and the projection structure of the two coils is the same. According to the difference of the circuit board pads, the circuit board is divided into three types. The series and parallel combination of the magnetic field coils is realized by different combinations of the three types of circuit boards, so as to realize the magnetic intensity adjustment of the magnetic field coils. The magnetic field coil manufactured by the method provided by the invention has the advantages of regular structure and good consistency. Magnetic field coil magnetic field intensity is adjustable and power supply total current demand is adjustable.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES

Electron supply system

The invention discloses an electron supply system, which comprises a cavity. The side wall of the cavity is provided with leading-out units distributed along the length direction of the cavity; and the cavity is provided with at least one cathode for emitting electrons. The electron supply system also comprises multiple magnetic devices around the cavity, the multiple magnetic devices are arranged along the length direction of the cavity at intervals, and due to the overlapped magnetic field of the magnetic devices, in the cavity, the electrons are distributed in the length direction of the cavity, and the leading-out units are used for leading one part of electrons out to form a ribbon electron group. The one-stage or multi-stage magnetic field is adopted to limit movement of the electrons in the not ideal direction, the majority of electrons can be distributed along the width direction of the ribbon ion beam, neutralization of the large-sized ion beam can be realized, impact loss of the electrons before certain distribution is formed can be avoided, and the electrons for neutralization can always have enough quantity.
Owner:北京凯世通半导体有限公司

A rotating seat for electromechanical installation engineering

The invention discloses a rotating seat for electromechanical installation engineering, which comprises a rotating disk and a telescopic cylinder rotatably connected to its upper surface. The rotating disk takes its geometric center as the center point, and a plurality of push rods are symmetrically fixed on the circumference, each The output end of the push rod is fixedly connected with a fan-shaped plate through a fixed rod, and a plurality of the fan-shaped plates are offset to form a disc, each of the fan-shaped plates is fixedly connected to a side plate, and the plurality of side plates are offset to form a disc. A circular ring, a plastic bag is provided on the inner wall of each side plate, and a plurality of electromagnets are provided on the outer wall of each side plate. The advantage is that when rotating and adjusting the length of the slide bar, the shear strength of the magneto-rheological fluid at the bearing point of the electromechanical equipment can be increased, and vice versa, it can also be adjusted to weaken the magnetic field strength at the "fragile point" of the electromechanical equipment, ensuring When installing electromechanical equipment, it will not exert excessive pressure on the "vulnerable point" to avoid damage to the electromechanical equipment.
Owner:黑龙江省建筑安装集团有限公司

Efficient grade enhancing machine

The invention discloses an efficient grade enhancing machine. The efficient grade enhancing machine comprises a protective outer cylinder, a grading inner barrel, an overflow box, a feeding funnel, a control cabinet and a supporting frame, wherein the grading inner barrel is arranged in the protective outer cylinder in a sleeved mode, electromagnets are arranged on the two sides of the grading inner barrel through screws, the top of the protective outer cylinder is provided with the overflow box communicating with the top end of the grading inner barrel through a mounting plate, an overflow pipe is welded on one side of the overflow box, the bottom of the overflow pipe is connected with a backflow pipe, the bottom end of the backflow pipe is connected with a three-way valve, one side of the three-way valve is connected with a water inlet pipe, and the other side of the three-way valve is connected with a water main, the top of the overflow box is provided with the feeding funnel through a mounting piece, the bottom of the feeding funnel is welded with a feed delivery pipe, the feed delivery pipe penetrates through the overflow box, a conical discharging port communicating with the grading inner barrel is welded at the bottom of the grading inner barrel, and an electromagnetic valve is arranged on the conical discharging port. The high-efficiency grade enhancing machine has the advantages of being high in desiliconization efficiency and good in controllability, capable of effectively saving water resources and suitable for wide popularization.
Owner:邯郸市睿冶矿山机械有限公司

A lung-clearing and phlegm-expelling device for the elderly

The invention discloses a lung-clearing and sputum-expelling device for the elderly, and relates to the technical field of respiratory medical instruments. The lung-clearing and sputum-expelling device for the elderly comprises a wearing unit, a vibration unit and a sputum suction unit. The wearing unit comprises a positioning plate and a wrapping garment surrounding the human chest; at that rearend of the position plate, a protection bag is arranged; a plurality of bag cavities are uniformly sewn in the protection bag; the bag cavity is filled with a shear thickening liquid; a plurality of threaded holes are arranged through the positioning plate; the vibration unit comprises a mounting pipe threadably connected with a threaded hole; an electromagnet is fixedly installed in the front part of the mounting pipe; a compression spring is fixedly connected with the rear end of the electromagnet; the rear end of the compression spring is fixedly connected with a knocking column; the sputumsuction unit comprises a tool table and a negative pressure pump; a rubber tube is uniformly connected with the periphery of the head of the sputum suction tube; the rubber tube is filled with magnetic powder. The invention has the beneficial effects of better protecting patients and transmitting vibration, enhancing airway stimulation and improving sputum expulsion treatment effect by using thecooperating of rapid high-frequency knocking and shear thickening liquid.
Owner:THE PEOPLES HOSPITAL SHAANXI PROV

A grinding device with adjustable stiffness and its use method

The invention provides a grinding device with adjustable rigidity and a using method, which includes a motor for providing power, a switch for controlling its opening is installed on the motor, and a grinding device for grinding is installed on the output shaft of the motor. wheel or grinding belt; the grinding area on the grinding wheel and grinding belt is divided into multiple layers with rubber material, the middle layer adopts a hydraulic layer or pulse layer that can generate instantaneous force, and the remaining layers are rigidities that can provide different grinding stiffnesses layer; the hydraulic layer or the pulse layer are respectively connected to the hydraulic device or the pulse device; the surface of the grinding wheel and the grinding belt is provided with a raised structure for enhancing the grinding effect, and a layer of flexible material is wrapped on its outer surface ; By changing the grinding material of the stiffness layer in real time, finely adjust the appropriate stiffness to polish the object. Compared with ordinary grinding devices, it has wider practicality and economic benefits, and better meets the grinding requirements required for production and life.
Owner:CHINA THREE GORGES UNIV

A lung-clearing and phlegm-expelling device for the elderly

The invention discloses a lung-clearing and phlegm-eliminating device for old people, and relates to the technical field of medical instruments of a respiratory medicine department. The lung-clearingand phlegm-eliminating device for old people comprises a wearing unit, a vibrating unit and a phlegm suction unit; the wearing unit comprises a wrapping bag which surrounds the chest of a human body;bag cavities are filled with shear thickening fluid; the vibrating unit comprises a positioning plate; a plurality of inner threaded tubes are mounted on the positioning plates in the front-back direction in a penetrating manner; the rear end of an adjusting column is fixedly connected with a pressure spring; the other end of the pressure spring is fixedly connected with a knocking box; an electromagnet is fixedly mounted in the knocking box; the phlegm suction unit comprises a tool table and a negative-pressure pump; the periphery of the head of the phlegm suction tube is uniformly connectedwith rubber tubes; and the rubber tubes are filled with magnetic powder. The lung-clearing and phlegm-eliminating device for old people has the beneficial effects that by cooperation of rapid high-frequency knocking and the shear thickening fluid, a patient can be protected well and vibration is transmitted, airway stimulation is enhanced, and a phlegm-eliminating treatment effect is improved.
Owner:南京一正医疗科技有限公司

External plug-in field intensity adjustable magnetizer special for agricultural irrigation

InactiveCN111377509AIncrease or decrease magnetic field strength adjustmentReduce field strength adjustmentsSpecific water treatment objectivesClimate change adaptationAgricultural scienceAgricultural engineering
The invention belongs to the technical field of water-saving irrigation and water treatment and especially relates to an external plug-in field intensity adjustable magnetizer special for agriculturalirrigation. Flange plates are arranged at two ends of a stainless steel pipe body; the pipe diameter of the stainless steel pipe body is equal to the pipe diameter of a connected drip irrigation system pipeline; an upper through hole group and a lower through hole group which are staggered left and right and obliquely penetrate through the pipe body are uniformly distributed on the pipe body along the axial direction; axes of upper through holes and lower through holes of the same upper through hole group and the same lower through hole group are the same; hole seats are respectively arrangedon the upper through holes and the lower through holes; magnetic rods with two ends extending out of the pipe body are respectively mounted in the hole seats of the upper through holes and the lowerthrough holes in a matched manner; and the hole seats of the upper through hole group and the lower through hole group are in seal fit with the magnetic rods through seal rings and clamping rings andare fastened through bolts. The magnetizer has advantages of reasonable structure, simple structure, convenient installation, plug-and-play function, adjustable magnetic field intensity, full-face water magnetization, high magnetization intensity and good magnetization effect, and the magnetic field intensity is adjusted by increasing or decreasing the number of the magnetic rods according to actual crop requirements.
Owner:XINJIANG INST OF WATER RESOURCES & HYDRAULIC POWER

A method and device for improving the performance of mg2ni type hydrogen storage alloy

The invention relates to a method and device for improving the performance of a Mg2Ni type hydrogen storing alloy, and the constituent of the alloy is Mg2Ni(1-x)Mnx (x is equal to 0-0.2). The method mainly comprises the following steps of: preparing Mg2Ni(1-x)Mnx (x is equal to 0-0.2) by adopting an induction melting method; removing an oxidization layer from the cast-condition Mg2Ni(1-x)Mnx, then crushing into chips and placing into a quartz tube, laying aside the quartz tube into a vacuum belt thrower, vacuumizing and filling argon; heating to fuse the alloy, injecting from the orifice of the quartz tube into a high-speed rotating water-cooling copper roll for fast solidification under a certain pressure; applying the static magnetic field with adjustable strength during the solidification process; and grinding and screening the prepared alloy sample in a glove box under the protection of argon, thereby obtaining the needed hydrogen storing alloy. The Mg2Ni type hydrogen storing alloy prepared has higher electrochemical capacity, and the cycling performance is better improved.
Owner:CENT SOUTH UNIV

A biocompatible magnetic porous membrane material and its preparation method

The invention relates to a biocompatible magnetic porous membrane material and a preparation method thereof, which solves the technical problems of low biocompatibility and poor mechanical properties of the membrane material in the prior art. The invention provides a biocompatible magnetic porous membrane material, which consists of the following raw material components in parts by weight: 10-40 parts of biopolymer materials, 10-20 parts of bioceramic materials, and 10-40 parts of nano permanent magnetic materials. 10-20 parts of activated carbon, 5-20 parts of plant fiber, 10-30 parts of polyvinyl chloride, 5-30 parts of porogen; biopolymer materials are polylactic acid, polycaprolactone, polylactic acid glycolic acid copolymer Any one or several of them; the bioceramic material is any one of hydroxyapatite and tricalcium phosphate. The invention is widely used in the field of membrane materials.
Owner:HARBIN INST OF TECH -WEIHAI INNOVATION PARK WEIHAI

Thermomagnetic device for spray molding of decorative balls

The invention discloses a thermomagnetic device for spray molding of decorative balls. The thermomagnetic device comprises a hollow sphere; a bottom plate is arranged under the hollow sphere and is provided with a motor; an output shaft of the motor is connected with the hollow sphere; the hollow sphere consists of two hemispherical shells which are respectively arranged at the upper part and thelower part; the two shells are connected with each other by means of a rapid lock catch; each shell comprises an inner shell and an outer shell, wherein a plurality of evenly distributed magnets are arranged between the inner shell and the outer shell; electric heating wires are arranged between the inner shells and the outer shells; an insulating thermal insulation layer covers each outer shell;each shell is provided with a spray gun hole and a conductive hole; each conductive hole is internally provided with a needle bar; a ring-shaped conveyor belt is arranged at the outer ring of the motor; the conveyor belt is provided with an electrostatic spray molding machine; spray guns on the electrostatic spray molding machine are arranged in the spray gun holes; an electrode on the electrostatic spray molding machine is connected with the needle bars. The thermomagnetic device for the spray molding of the decorative balls has the advantages of being high in aesthetic feeling degree, low inmolding powder consumption and easy in uniformity guarantee of surface paintcoat thickness.
Owner:湖州正鸣塑胶科技有限公司
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