16 results about "Induction coil" patented technology

A towrope type ocean controllable source electromagnetism and earthquake data collection system is composed of electric field sensors (non-polarized electrodes) distributed in three or more towropes uniformly or not, three-component induction coil type or three-component fluxgate type magnetic field sensors and sonic sensors composed of hydrophones or accelerometers and is used for measuring ocean three-component magnetic-field components, electric field components EX distributed in the cable direction, electric field components EY distributed in the vertical cable direction and ocean earthquake data. The towrope type ocean controllable source electromagnetism and earthquake data collection system can collect ocean electromagnetism data and ocean earthquake data in the time domain and the frequency domain at the same time, increase the collection quantity of ocean geophysics data of advancing construction at a time in a multiplying mode, effectively improve the target detection precision and explore and evaluate ocean mineral products, oil and gas resources and methane hydrates through combination and comprehensive application of ocean controllable source time-frequency electromagnetism and the earthquake exploration technology.

The invention discloses an induction coil assembly, which comprises a printed circuit board and a first planar winding group, and is characterized in that the printed circuit board is provided with a plurality of circuit layers, and a first block is defined on the printed circuit board; the first planar winding group is arranged on the printed circuit board and comprises a first planar inductor assembly and a second planar inductor assembly; the first planar inductor assembly is distributed in combination of the plurality of circuit layers, and the first planar inductor assembly is arranged around the first block; and the second planar inductor assembly is distributed in combination of the plurality of circuit layers, and the second planar inductor assembly is arranged around the first block. Through the induction coil assembly disclosed by the invention, a plurality of induction coils can be effectively arranged on a single circuit board, and arrangement of a planar coil structure used for filtering, voltage conversion or other electric power conversion on the single circuit board is realized.

The invention relates to an induction normalizing method for a steel rail. The method applying an induction heating technology to a normalizing process of seamless welding of a track comprises the following steps: first, carrying out medium frequency induction heating to the normalizing temperature of 840-880 DEG C and keeping the temperature for 8-10 minutes; then introducing cold water into a designed novel induction coil to water cool the induction heated steel rail, wherein the integral steel rail is cooled by water; and finally, naturally cooling the steel rail to room temperature when the temperature of the steel rail is reduced to 445-455 DEG C. Compared with the prior art, by applying induction heating to normalizing of track welding, the environmental pollution problem in the prior art is reduced, the heating speed and the heating efficiency are improved effectively, the time of the whole normalizing process is shortened greatly, and the demand of automation is easily met.

The invention discloses a segmented heating and cooling quenching process for a wheel body of a thrust wheel. The process comprises the following steps of 1, placing and positioning the thrust wheel, wherein the thrust wheel is grabbed through a mechanical arm and placed on a support platform in a quenching device; 2, sequentially conducting intermediate frequency, high frequency and intermediate frequency induction heating on the thrust wheel through induction coil bodies; 3, cooling the thrust wheel obtained after induction heating, wherein spray cooling implemented through water, saline water and oil is sequentially conducted on the thrust wheel obtained after induction heating. According to the thrust wheel quenching process, the water-saline water-quenching oil cooling process is adopted, so that the problems that in the prior art, the quenching speed of a thrust wheel is low, the thrust wheel is deformed and cracked, and the thrust wheel is inconsistent in hardness after being quenched; the quenching process has the advantages of being uniform in thrust wheel hardness and high in quenching efficiency.

A forward power converter with a self-excited synchronous rectifying circuit makes use of the self-excitation function of a transformer to generate electric energy at a secondary side winding coil of the transformer, hence controlling an n-channel FET to accomplish synchronous rectification. In the synchronous rectifying circuit, the drain of the n-channel FET is connected to an end of the secondary side of a first transformer, the source of the n-channel FET is connected to a positive end of a flywheel diode, the negative end of the flywheel diode is connected to the other end of the secondary side of the first transformer, a control end of the n-channel FET is connected to an end of an induction coil via a resistor and a capacitor, and the other end of the induction coil is connected to the source of the n-channel FET.

In a method for heat treating a fuel assembly channel made of zircaloy, the channel is continuously moved relative to a heat-treatment device and, longitudinal sections of it are heated to the beta phase range in an inductive heating zone. The longitudinal section of the channel heated in this manner is than cooled in a cooling zone to a temperature within an alpha phase range. The heat treatment is effected by at least two heating devices, which are spaced apart from one another, operate independently of each other, and each contain at least one induction coil and together form a heating zone. The channel section is first heated using a first heating device and then heat-treated using a second heating device which has less power and in that cooling is effected using a stream of inert gas applied to the outer surface of the channel.

The invention discloses an automatic spraying device applied to an SPE film and an achieving method of the automatic spraying device. The automatic spraying device comprises a case, a guide rail, a catalyst temperature control spraying device, a motor and a PLC control system. The case is provided with a spraying work platform, a vacuum chamber and an equipment box from top to bottom. The spraying work platform is used for containing a film clamp fixing the SPE film, a sintering porous titanium plate is arranged on the platform top of the spraying work platform, and an induction coil is evenly inlaid in the platform top. The equipment box is internally provided with a vacuum pump and a heating device connected with the induction coil. The guide rail is arranged on the side face of the case. The catalyst temperature control spraying device is in sliding connection with the guide rail and is used for spraying a catalyst to the SPE film. The motor is used for controlling the catalyst temperature control spraying device to move along the guide rail. The PLC control system is connected with the catalyst temperature control spraying device, the motor, the heating device and the vacuum pump at the same time. According to the automatic spraying device, the catalytic performance of the catalyst can be guaranteed, meanwhile, film swelling deformation of the SPE film is avoided, the film forming quality is improved, and the requirement for batched manufacturing is met.

The invention relates to the related field of pressure regulating valves, and discloses a detection device for automatically fixing a pressure regulating valve. The detection device comprises a detection box, the detection box is internally provided with an exhaust cavity with a rightward opening, the upper side of the exhaust cavity is provided with a centrifugal cavity, the right side of the centrifugal cavity is communicated with a push plate cavity, and the upper side of the push plate cavity is communicated with a detection block cavity. A threaded lead screw shaft extending leftwards into the left end wall of the detection block cavity and extending rightwards to the outside is connected into the right end wall of the detection block cavity in a rotating fit mode, a pressure push plate moves rightwards to make contact with a pressure sliding block in an abutting mode to send a marking magnetic block, and therefore the detection result of the pressure regulating valve block is marked. The air pressure transmission block pushes the pressure regulating valve block to abut against the sealing induction coil to ensure the sealing performance, so that the detection result is more accurate, and meanwhile, the valve body detection block is driven to move left and right by rotating the setting knob, and thus the detection standard intervals of different types of pressure regulating valve blocks are adjusted, and the universality of detection is improved.

The invention relates to the field of metal and plastic connection, and discloses a metal/plastic pipe automatic rotation induction welding device. The device comprises symmetrically-arranged conveying devices, and each conveying device comprises a guide rail and a pressurizing device; the guide rails are provided with sliding blocks, supporting frames are arranged above the sliding blocks, a second motor is arranged above the supporting frames, the second motor is connected with a speed reducer, and the speed reducer is connected with a three-jaw chuck; the pressurizing device comprises a first motor and a lead screw, and the lead screws penetrate through a bearing and then is connected with an output ends of the first motor; the lead screw penetrates through the supporting frames, and the first motor drives the lead screw to rotate and then drives the supporting frames to move; an induction coil is arranged between the symmetrically arranged conveying devices; and one end of a pipe is fixed to the center of the three-jaw chuck, and the other end of the pipe extends into the induction coil. The problems that in the prior art, a metal/plastic pipe connecting interface is too small in connecting area and low in strength are solved, the concept is ingenious, and adaptability is high.

A plasma installation includes at least two separate components being a vessel for an object to be processed and a plasma unit having an electrical plasma source for igniting a plasma in the vessel. The plasma unit has no additional subassembly for other media so that the plasma unit can be constructed in a structurally particularly simple manner and readily operated. In a particularly preferred manner, the vessel comprises a vessel body of glass. The vessel body is preferably constructed in one piece and surrounds the object completely. The plasma can be ignited spaced apart from the plasma unit by means of a high-frequency generator, an induction coil and/or a magnetron of the electrical plasma source.

The present invention relates to a large creepage distance European joint structure which mainly comprises a high voltage switch connector and a cable connector. An induction coil is arranged in the high voltage switch connector; the wire outlet end of the high voltage switch connector is connected with a high voltage cable by the cable connector; a distance between a conductor in the high voltage switch connector and the secondary low voltage output end of the induction coil is an along surface creepage distance; three outer skirt edges are formed at the rear end of the end, which is connected with the cable connector, of the high voltage switch connector and the three outer skirt edges are simultaneously positioned at the front end of the secondary low voltage output end of the induction coil, so that the along surface creepage distance is 200mm to 265mm; and the secondary low voltage output end of the induction coil is connected with a live display. The large creepage distance European joint structure has the beneficial effects that the service life of a switching cabinet can be greatly prolonged and operation safety of a power grid is ensured; meanwhile, currently, most European cable connection adopts a shielding type product, so that live touch can be realized; and the structure also can greatly improve personal safety of an operator.

The invention discloses a combined type pocket block based on an electromagnetic induction heating tapping technology. The combined type pocket block comprises an upper pocket block body and a lower pocket block body; an induction coil is poured and packaged in the lower pocket block body; an induction coil lead wire is led out of the bottom of the lower pocket block body, penetrates through a steel ladle bottom case and is connected with an induction heating power supply; the upper pocket block body is stacked at the top of the lower pocket block body; the upper pocket block body is in located connection with the lower pocket block body through a bulge and groove structure on the contact surface; an upper molten steel channel is formed in the upper pocket block body, and is of a frustum cone-shaped structure; the minor diameter end of the upper molten steel channel faces downwards; the height of the upper molten steel channel is less than or equal the height of a Fe-C alloy fusion layer; a lower molten steel channel is formed in the lower pocket block body; the lower molten steel channel is of a cylindrical structure and communicates with the upper molten steel channel; and the diameter of the lower molten steel channel is equal to that of the minor diameter end of the upper molten steel channel. Duty-cycle operation of the induction coil is achieved, the sizes of the molten steel channels are optimized, and the 100% automatic pouring rate is ensured.

The invention discloses a metering apparatus structure capable of prolong life of a flowmeter. The metering apparatus structure comprises a straight tube segment, an induction coil fixed on the tube pipe of the straight tube segment, a permanent magnet arranged on the axis of the induction coil and more than one impeller arranged in the circulation space of the straight tube segment, the axes of the impellers are collinear, the impellers are fixed on the same impeller shaft, the impellers and the impeller shaft are made of aluminum alloys, the front ends of the impellers are also provided with filters, the metering apparatus structure further comprises two guide shells fixed in the straight tube segment, the two guide shells are respectively disposed at the front ends and the rear ends of the impellers, and the two ends of each impeller are respectively connected with the two guide shells through bearings. The metering apparatus structure is simple in structure, long in service life and high in measuring precision and sensitivity, and at the same time, is conveniently installed on a pipeline.

The invention relates to the technical field of electronic analytical balances, and discloses an electronic analytical balance for mass measurement, which comprises a machine body, a windshield box isfixedly connected to the outer side of the upper surface of the machine body, a weighing disc is arranged on the upper surface of the machine body and located in the windshield box, and an anti-convection annular plate is movably sleeved with the machine body. The invention discloses an electronic analytical balance for mass measurement. The linkage device, the regulation and control device and the balance device are matched with one another; when measuring the quality, when a temperature difference exists between the actual temperature and the measured temperature; the magnetic induction intensity and the effective length of the magnetic induction coil are increased; the volume of the balloon is increased when the left connecting touch plate is subjected to heat-sensitive induction; andthe included angle between the horizontal plane of the magnetic induction coil and the linkage device is changed, so that the sine value of the corresponding included angle is reduced, the gravity ofthe measured object on the weighing disc is still in direct proportion to the corresponding electromagnetic force, the influence of inaccurate mass of the measured object is effectively reduced, and the accuracy of measuring the mass of the object by the electronic analytical balance for mass measurement is improved.

The invention relates to innovation applied to a directional crystallization technology, in particular to an automatic production system for directional crystallization, which comprises a medium-frequency holding furnace equal molten steel splitting device and a directional crystallization cooling disc, and the medium-frequency holding furnace equal molten steel splitting device is arranged above the directional crystallization cooling disc; the molten steel equally-dividing device of the medium-frequency heat preservation furnace comprises a crucible, an induction coil, a sand layer and a furnace shell, the sand layer is arranged on the outer wall of the crucible, the induction coil is arranged on the outer wall of the sand layer, the furnace shell is arranged on the outer wall of the induction coil, a bottom plate is arranged at the bottom of the crucible, a first liquid outlet hole is formed in the bottom of the crucible and penetrates through the bottom of the crucible and the bottom plate, and a second liquid outlet hole is formed in the bottom of the crucible. The device further comprises a liquid waiting disc, a tray and a rotating shaft. The directional crystallization cooling disc comprises a bracket, a roller is arranged on the bracket, a hollow barrel-shaped cooling disc is arranged above the bracket, and the cooling disc is in running fit with the roller; and after quantitative molten steel casting is automatically carried out on the die through the second liquid outlet hole, rapid directional cooling is carried out through the directional crystallization cooling disc, and automatic production of quantitative crystallization is achieved.

The invention discloses a drill rod thread detection device based on ferrite eddy current thermal imaging. The device comprises a rotary fixing device for fixing a drill rod, wherein an induction coilis arranged beside the rotary fixing device, a manganese-zinc-iron-oxygen rod is arranged in the induction coil, two ends of the induction coil are fixed on an alternating current heating device, twoends of the induction coil are electrically connected with the alternating current heating device, the alternating current heating device is fixed on the moving device, an infrared thermal imager isarranged above the rotary fixing device, and the controller and the infrared thermal imager are both electrically connected with the PC terminal. The thread defect detection method adopting the detection device comprises the following steps of setting the movement track of each part, applying excitation by the induction coil, recording the temperature change of the thread surface by the infrared thermal imager, judging the defect position by utilizing the temperature change, and the like. According to the device, detection efficiency is high, and data support is provided for prediction of thethread residual life and arrangement of thread repairing work; universality is high, and the automation degree is high.