905 results about "Induction heating" patented technology

The invention relates to the technical field of metal powder processing, and discloses a high-performance dissimilar metal powder precision forming process which comprises the following steps: filling powder into a mold cavity, applying vibration disturbance, monitoring the change rate of a phase lag angle, judging that the powder is dense when the change rate is lower than an offset threshold value, outputting a pressing mode switching signal, an induction heating device is used for applying transient thermal load to induce cracks of an oxide film on the surfaces of particles, the pressure load is applied, the side wall is adjusted to generate shear displacement to peel off the oxide film, and metallurgical bonding is achieved through fresh metal surface contact. An interface is activated through thermal expansion mismatch and mechanical friction synergistically, a high-density uniform green body is obtained at low temperature, generation of brittle intermetallic compounds is inhibited, and the fatigue resistance of a formed part is enhanced.

The utility model discloses an electromagnetic induction heating module, heating equipment and a slab production line, and relates to the technical field of induction heating. The heating module comprises a shell, a coil, and a first magnetic conductive assembly, a second magnetic conductive assembly and a third magnetic conductive assembly which are sequentially arranged along the length direction of the coil, the first magnetic conductive assembly and the third magnetic conductive assembly respectively correspond to two side parts of a to-be-heated object, and the second magnetic conductive assembly corresponds to the middle part of the to-be-heated object; the first magnetic conductive assembly and the third magnetic conductive assembly each comprise a first magnetizer which is matched with the coil and can move up and down, and the second magnetic conductive assembly comprises a second magnetizer which is matched with the coil and is fixed. By adjusting the gap between the first magnetizer and the to-be-heated object, the heating temperature of the area corresponding to the to-be-heated object is adjusted, and the temperature uniformity of the to-be-heated object in the width direction is achieved.

This invention provides a high-frequency coil heating forming device for titanium alloy ring-ribbed parts, comprising a high-frequency induction heating unit, an inner-support rotary chuck unit, an automatic horizontal rotary unit, a forming wheel unit, and a hydraulic power unit. The inner-support rotary chuck unit is mounted on the automatic horizontal rotary unit and uses a slider to round the ring ribs. The hydraulic power unit provides power for the slider movement and is located below the automatic horizontal rotary unit. The high-frequency induction heating unit and the forming wheel unit are respectively mounted on the sides of the automatic horizontal rotary unit. The high-frequency induction heating unit heats the ring rib material on the inner-support rotary chuck unit through a high-frequency heating coil, and the forming wheel unit is used to process the end flange structure of the ring ribs. This invention achieves efficient heating of titanium alloy ring-ribbed parts to their forming temperature and maintains it constant. The horizontal rotary table performs horizontal rotational motion, coupled with the forming wheel, to complete the hot forming of the vertical edges of the ring ribs.

The invention discloses an induction heating path optimization method suitable for a heterogeneous noise elimination structure, and particularly relates to the field of induction heating path optimization of the heterogeneous noise elimination structure, and the method comprises the steps: building a grid coordinate in a target region, collecting the heat conductivity coefficient, the specific heat capacity, the thermal resistance value and the induction coil gap value of each grid node in the grid coordinate, generating a thermal response model; and performing heat conduction calculation on the thermal response model and a preset heating power curve, calculating a temperature rise value of each grid node in a fixed preset heating time, marking the grid nodes of which the temperature rise values reach or exceed a safe temperature threshold and the adjacent grid nodes as heat concentration areas, and generating risk area data after gathering the heat concentration areas. A risk assessment and dynamic reordering mechanism based on local thermal characteristic difference is introduced in a heating path planning process, so that advanced identification and real-time avoidance of a heat concentration area are realized.

The invention relates to the technical field of pipe bending machines, and discloses petroleum pipeline thick-wall hot pipe bending equipment with a medium-frequency induction heating device. The petroleum pipeline thick-wall hot pipe bending equipment comprises a core rod body, the core rod body comprises a guide rod connected with a rack and a guide column arranged at the tail end of the guide rod, and the tail end of the guide column is provided with at least two supporting joints which are in spherical hinge joint; elastic edges are arranged on the edges of the supporting joints and filled with hydraulic oil. According to the device, through coaxial and synchronous rotation matching of the wheel die and the clamping die, the guiding and limiting effects of the guiding die and the internal supporting design of the core rod body, a cooperative machining mechanism of external fixing, external guiding and internal supporting is formed, and the problems of axial displacement and radial deviation in the bending process of the thick-wall petroleum pipeline are effectively avoided. In the core supporting structure, multiple sets of supporting joints capable of flexibly rotating can be attached to the inner wall in a self-adaptive mode along with the bending radian of the pipeline, and a dynamic supporting system composed of elastic edges and hydraulic oil can dynamically adjust the supporting force according to the bending angle.

The invention discloses a follow-up type double-face induction heating auxiliary incremental forming device, method and equipment and a medium, and relates to the field of sheet metal forming. The forming tool heads are fixed to the tail end of the mechanical arm, the two sides of the to-be-machined plate are each provided with one forming tool head, and the forming tool heads are used for extruding the to-be-machined plate to enable the to-be-machined plate to deform; and the electromagnetic induction heating device is rotationally connected with the mechanical arm through a mounting bracket, and the electromagnetic induction heating device is used for providing an electromagnetic field to heat the to-be-processed plate. And the processing performance of the plate is improved in an electromagnetic induction auxiliary heating mode.

The invention discloses an aluminum magnesium alloy energy-saving melting device and method based on electromagnetic induction preheating, and belongs to the technical field of aluminum magnesium alloy preparation. The device comprises a preheating curve generation module used for determining a preheating curve based on the weight of an electromagnetic preheating station and the position of a magnesium ingot; the preheating module is used for controlling an induction heating device to carry out electromagnetic preheating on the magnesium ingot based on the preheating curve; the feeding module is used for calculating the clamping force and the acceleration of the manipulator for grabbing the magnesium ingot and the feeding angle after the manipulator reaches the target position, and controlling the manipulator to feed the magnesium ingot into the crucible based on the parameters; the air supply adjusting module is used for adjusting the air supply amount of the variable-frequency fan; and the heating control module is used for controlling the heating process of the heating device to the outside of the crucible. According to the scheme, the heating time can be shortened through electromagnetic preheating, the heat loss is reduced, and the overall energy consumption can be reduced and the melting efficiency and the alloy quality can be improved by combining real-time temperature field monitoring and molten pool recognition.

An induction cooktop comprises a cooktop surface, induction heating coils beneath it, a power supply with power semiconductors for the induction heating coils, and an external electrical connection. The power supply is located on a power circuit board, and the electrical connection is located on a connection circuit board. At least one cooling device is also provided, comprising at least one fan with a fan inlet for intake and a fan outlet for exhaust air to cool the power supply, a cooling air duct, and at least one heat sink to which the cooling air duct leads. In a vertical direction perpendicular to the cooktop surface and to one of the circuit boards, the fan is positioned lower than the heat sink.The connection circuit board runs below the power circuit board, the connection circuit board has an electrical connection to the outside, and the cooling air duct runs with a bend and deflection of 90° or 180° between the fan outlet and the heat sink.

The utility model relates to the technical field of metallurgical electric furnaces, in particular to an induction coil for a medium-frequency electric furnace, which comprises an induction heating coil, an upper cooling coil positioned above the induction heating coil and a lower cooling coil positioned below the induction heating coil, the upper cooling coil, the induction heating coil and the lower cooling coil are all formed by winding hollow pipe bodies in the same spiral direction, the cross section of the induction heating coil is in a D shape, and the induction heating coil comprises an inner pipe wall, an outer pipe wall and two connecting walls connected between the inner pipe wall and the outer pipe wall. The cross section of the induction heating coil is designed to be D-shaped, the inner pipe wall located on the inner side of the induction heating coil is arranged to be arc-shaped, and the outer pipe wall located on the outer side of the induction heating coil extends in the vertical direction, so that current and magnetic field distribution is optimized, and magnetic field energy acts on the surface of a workpiece on the inner side of the induction heating coil more intensively; energy loss is reduced, the heating speed of workpieces is increased, and the heating efficiency of the medium-frequency electric furnace is improved.

The invention relates to the technical field of medium-frequency induction heating furnaces, in particular to a medium-frequency induction heating furnace body, a furnace body manufacturing method anda temperature control method. The medium-frequency induction heating furnace body comprises a furnace lining, a material channel allowing a blank to pass through is formed in the middle of the furnace lining, and an induction coil which extends in axial direction of the material channel and is spirally wound on outer side of the material channel is arranged in the furnace lining; and a pluralityof temperature measuring holes are formed in the side wall of the furnace lining in the axial direction of the furnace lining at intervals, the temperature measuring holes are formed in the radial direction of the furnace lining and penetrate through the side wall of the furnace lining, and the temperature measuring holes are located at the intervals between every two adjacent turns of coils of the induction coil. The invention further provides a manufacturing method of the medium-frequency induction heating furnace body and a temperature control method of the medium-frequency induction heating furnace. According to the furnace body, the temperature measuring holes are formed in the side wall of the furnace body for temperature measurement instead of adopting the temperature measurement mode at a discharge port so that the temperature measurement accuracy can be improved.

The utility model discloses a bar emptying mechanism for induction heating, which belongs to the field of bar emptying and comprises an inductor, two horizontal and parallel slideways are arranged in the inductor, and two ends of the two slideways respectively extend out of two ends of the inductor; a support is arranged at the feeding end of the sensor, a rotating disc is arranged on the support, and the center of the rotating disc is connected with an emptying gear motor through a rotating shaft. Baffles are arranged on the two sides of the rotating disc, a plurality of chain link columns are wound around the rotating disc, and the ends of the adjacent chain link columns are hinged. A guide structure is arranged below the rotary table, and the guide structure can guide the chain link column at the foremost end to the slide way; a driving roller set is arranged on the portion, between the guiding structure and the sensor, of the sliding way and comprises an upper roller and a lower roller, the upper roller and the lower roller are both connected with a driving gear motor, and the upper roller and the lower roller can drive the chain link column to move towards the sensor after clamping the chain link column in a matched mode. The structure can reduce the occupied length of the emptying rod at one end of the sensor and improve the space utilization rate of equipment.

The invention relates to a temperature control induction heating system for surfacing of the inner wall of a nuclear power main pump shell. The system is formed by splicing a top induction heating tool, a bottom induction heating tool and a plurality of side induction heating tools through a stainless steel connecting frame, and an intelligent temperature control system. The intelligent temperature control system is composed of a distributed temperature measurement sensor, a central control unit and a man-machine interaction terminal. The heating method comprises the steps of tool assembly, preheating, dynamic interlayer temperature control in the surfacing process, programmed postweld heat treatment and data recording and dismounting. The device has the advantages that the device is adaptive to the special-shaped curved surface of the pump shell through modular design, the power of each tool is dynamically and independently adjusted, the problems of uneven temperature and low efficiency of a traditional heating mode are solved, and the surfacing quality and the process traceability are remarkably improved.

The invention relates to a heat treatment process of a bearing ring with high impact resistance, which comprises the following steps: step 1, pretreatment: quenching and tempering the bearing ring by adopting a mesh belt type heat treatment furnace, and carrying out quenching in five regions in sections; 2, medium-frequency heat treatment: 1) an induction heating process: heating in an inner induction coil oscillation mode; and (3) the bearing ring in the step (2) is overturned by 180 degrees and then placed into the induction heating device again, the step (1) and the step (2) are repeated, and the method is completed. The method has the advantages that the depth of the induction quenching layer of the ferrule is optimized, an effective gradient buffer area is ensured to be formed, and the stress distribution uniformity under the impact load is enhanced; surface layer hardness, secondary surface layer hardness distribution and core hardness distribution are optimized, and wear resistance and crack resistance are both considered; a set of standardized heat treatment parameter windows (including heating power, time, cooling mode and tempering system) is formed, and the fracture rate of an optimized sample piece is reduced by more than 50%.

The utility model discloses a Stirling heat engine teaching aid based on an auxiliary magnetic suspension system and a U-shaped liquid column, which comprises a support table, a glass U-shaped tube and a quartz tube, a high-frequency induction heater is arranged on the upper side of the support table, a heating induction coil of the high-frequency induction heater is sleeved on the quartz tube, the quartz tube is horizontally arranged, and the glass U-shaped tube is arranged on the quartz tube. A first sealing plug and a second sealing plug are respectively plugged at the two ends of the quartz tube, heat preservation steel wool is arranged at one section, close to the first sealing plug, of the interior of the quartz tube, and a heating iron ring is arranged in the center of the interior of the quartz tube and is positioned in a heating induction coil of the high-frequency induction heater. According to the utility model, through the design of the auxiliary magnetic suspension system and the U-shaped liquid column, the friction between the piston and the pipe wall is greatly reduced, the energy loss in the mechanical energy conversion process is effectively reduced, and the working principle of the Stirling heat engine and the application of the second law of thermodynamics can be intuitively displayed.

The invention provides a preparation method of high-purity antimony, and belongs to the technical field of high-purity metal materials. The preparation method of the high-purity antimony comprises the following steps that a crude antimony raw material is added into a cylindrical container, then the cylindrical container is placed in an induction heating coil, and under the conditions that the induction power is 30-150 kW, the change frequency is 2-15 kHz and the rotating eddy current is in the clockwise direction, the crude antimony raw material is subjected to induction melting, and gathering the impurities at the edge, parallel to the section circle of the cylindrical container, of the molten antimony, cooling, and removing the impurities to obtain the high-purity antimony. According to the preparation method of the high-purity antimony, the purity of the crude antimony raw material can be rapidly and effectively improved.

This invention discloses a rapid catalyst preparation method based on high-frequency alternating magnetic field atmosphere heating, belonging to the field of rapid catalyst preparation technology, including the following steps: Step 1: Support pretreatment and precursor loading: After surface modification pretreatment of the metal support, the catalyst precursor is uniformly loaded onto the surface of the metal support using precision coating technology; Step 2: Modular coil adaptation: A suitable modular induction coil assembly is selected according to the geometry of the metal support, and the metal support loaded with the precursor is fixed in the central region of the coil. The rapid catalyst preparation method based on high-frequency alternating magnetic field atmosphere heating proposed in this invention achieves spontaneous heating inside the metal support through induction heating, without the need for external furnace contact. This not only avoids the corrosion of equipment by corrosive precursor gases, but also significantly reduces dependence on large high-temperature furnace equipment, shortens the preparation cycle, and improves the safety and economy of the process.

The invention provides an in-situ thermal field induction heating module design method and device, and relates to the technical field of laser manufacturing, and the in-situ thermal field induction heating module design device comprises an optical fiber laser, a laser cladding nozzle, a six-axis mechanical arm, a coil adjusting structure, an induction coil, an induction power supply, a water cooling machine, a molten pool monitoring and control system and a base material; the optical fiber laser is connected with the laser cladding nozzle, the six-axis mechanical arm is used for controlling the laser cladding nozzle to move, and the coil adjusting structure is installed on the six-axis mechanical arm and connected with the induction coil so that the induction coil can synchronously move along with the laser cladding nozzle. The sprayed metal powder is solidified on the base material to form a cladding layer, the induction power supply generates high-frequency current and conducts the high-frequency current to the induction coil, the induction coil heats the cladding layer, and the water cooling machine is used for cooling the induction coil; the molten pool monitoring and control system is installed on the side face of the molten pool and used for monitoring thermal field distribution of the molten pool in real time. The method has the advantage that the problem that defects such as cracks and air holes are prone to being generated in the laser cladding process is solved.

The utility model relates to the technical field of semiconductor material preparation, specifically discloses the inductive heating epitaxial furnace of silicon carbide substrate piece growth epitaxial layer, including support plate, the bottom surface fixed connection of support plate has four support rods, the outer surface fixed connection of support plate has rotary mechanism, the outer surface fixed connection of rotary mechanism has base, the upper surface of base is seted up and places the groove through the pressure sensor in the heating assembly and senses the silicon carbide placed in the placing groove, subsequently passes through the controller control heater operation, transports the heat to the heating pipeline, carries out heating treatment to the heating chamber through the heating pipeline, and then realizes the heating treatment to the silicon carbide substrate piece growth epitaxial layer, through the rotary mechanism drive the silicon carbide rotation placed in the placing groove on the base, sprays the raw material on the silicon carbide again through the growth epitaxial layer mechanism, realizes the silicon carbide substrate piece growth epitaxial layer.

The invention provides an induction heating cooker which improves visibility of light displayed on a top plate. This induction heating cooker is provided with: a top plate; and a light-emitting device disposed below the top plate, the light-emitting device including: a substrate; a light-emitting element mounted on the substrate; and a light guide plate having a longitudinal direction in a direction along the top plate and guiding light emitted from the light emitting element, the light guide plate having a first end in the longitudinal direction and a second end on the opposite side from the first end, the size of the light guide plate in the height direction becomes smaller from the first end toward the second end, and the light guide plate guides the light incident into the light guide plate from the first end to the top plate.

The invention discloses an induction heating molten salt energy storage system with controllable distribution of large-plane plate-level eddy current, which comprises a salt storage tank, one end of the salt storage tank is connected with a heating device, and the other end of the salt storage tank is connected with a thermoelectric conversion device. The invention further discloses a design method of the induction heating molten salt energy storage system with the large-plane plate-level eddy current controllable distribution. The design method comprises the steps of designing the total heating power Ptotal, designing the total eddy current power Peddy of the metal heating plate and designing the molten salt flow Qv in unit time. The problems that the vortex area is small, distribution is uncontrollable, the molten salt heating temperature is uneven, and the heating efficiency is low are solved.

An apparatus for continuously growing an ingot includes a growth furnace in which a main crucible where silicon in a molten state is accommodated is located therein to form an ingot; a material supply part for supplying a silicon material in a solid state before the silicon in a molten state is melted; and a preliminary melting part including a preliminary crucible for melting the silicon material in a solid state which is supplied from the material supply part, a heating space in which the preliminary crucible can be heated, and a preliminary crucible heating module for heating the preliminary crucible by an induction heating method, where the silicon in a molten state in the preliminary crucible can be directly supplied to the main crucible.

The present invention provides a molten material discharge device and discharge method for a glass melting furnace in a nuclear power plant. The molten material discharge device for a glass melting furnace in a nuclear power plant includes a target body containing molten material positioned at the top and a discharge assembly for continuously discharging the molten material to the bottom, the discharge assembly including a main body module, a drive module for providing driving force, a nozzle module for discharging the molten material from the target body, a heating module for heating the nozzle module by induction heating, a first temperature measurement module for acquiring first temperature information due to heating the nozzle module, and a second temperature measurement module for acquiring second temperature information, which is temperature information due to heating the nozzle module, separately from the first temperature information, the heating module maintains the nozzle module at a set temperature based on the first and second temperature information.

The invention relates to an apparatus (1) and to a method for producing flat-rolled products from metal slabs, preferably thick slabs having a thickness of at least 140 mm, wherein the apparatus (1) comprises: at least one casting machine (10) which is designed to cast a strand from a metal, preferably steel; a transport device (30) which is designed to transport the strand in a transport direction along a transport line (T); a separating device (14) which is arranged downstream of the casting machine (10) in the transport line (T) and is designed to separate the strand into individual slabs; a rolling device (50) which is arranged downstream of the separating device (14) in the transport line (T) and is designed to roll each slab into a flat-rolled product; a temperature setting system (20) comprising an induction heating device (22) which is arranged between the separating device (14) and the rolling device (50) and is designed to heat the slabs to a hot-rolling temperature; and a control device (100) which is in communication with the induction heating device (22) and is designed to actuate the induction heating device (22) such that each slab is heated in a non-uniform manner along its longitudinal extent.

The present specification relates to an induction heating device and a method for controlling the same. The induction heating device according to an embodiment can include a top plate on which a container is stably placed, a work coil, an inverter including a plurality of switching elements and supplying a current to the work coil, a driving circuit supplying a switching signal to each of the switching elements included in the inverter, and a controller determining a driving frequency of the inverter and supplying a control signal to the driving circuit based on the driving frequency to drive the work coil. In an embodiment, the controller can receive a load amount of a load inside the container, and adjust a power level of the work coil based on the load amount.

The present invention relates to a device for inductively heating at least one workpiece (4), in particular a substantially strip-shaped workpiece (4), comprising at least one furnace housing (6), at least one inductor arrangement (8) arranged in the furnace housing (6), at least partially in an inductor area (10) of the furnace housing (6), at least one heating area (14) for receiving a process gas, the heating area (14) arranged in the furnace housing (6), and a separating material (12) for separating, in particular for thermally separating, the inductor area (10) and the heating area (14).Furthermore, the present invention relates to a method for inductively heating at least one workpiece.

The utility model relates to an induction heating device for heating a steel bar, the induction heating device comprises a rack and an induction heating assembly, the induction heating assembly comprises a heating coil and a power supply box, the rack is arranged on the power supply box, the heating coil is arranged on the rack, the power supply box is used for heating the heating coil, and the induction heating device comprises a detection assembly, the detection assembly comprises a temperature detector and an indicator light, the temperature detector is arranged on the power supply box and faces a steel bar in the heating coil, and the indicator light is arranged on the power supply box and used for being electrically connected with the temperature detector. The device has the effect that the steel bar is heated to the set temperature, so that the quality of the subsequent steel bar in the stamping process is improved.

A method for controlling an induction heating apparatus comprises steps of receiving a power level for a heating region, supplying a switching signal to an inverter circuit based on a predetermined reference frequency, measuring an output current value of the inverter circuit, measuring a DC link voltage value, calculating an output power value of the working coil based on the output current value of the inverter circuit and the DC link voltage value, determining a heating frequency of the inverter circuit based the result of comparison by comparing the output power value of the working coil with a required power value, and supplying a switching signal to the inverter circuit based on the heating frequency.

A method for separating layers of a laminate is provided. In this method, a laminate is provided that contains or consists of a first layer comprising a metal and a second layer comprising a binder material, the binder material bonding the second layer to the first layer. In the region of the first layer of the laminate, an alternating magnetic field is generated by at least one coil supplied with alternating current from an electrical voltage source. This field inductively heats the first layer of the laminate to a temperature below its melting point, during or after this heating process, separating the second layer from the first. The electrical voltage source is adjusted to supply the at least one coil with alternating current at an oscillation frequency of ≥ 1 MHz.Furthermore, a suitable system for separating layers of a laminate is provided.

The utility model discloses a special induction heating coil for rivet annealing, and relates to the technical field of rivet heating annealing, the induction heating coil is a loop structure which is formed by winding the same section of metal piece, one end of the loop structure is a coil main body, and the other end of the loop structure is a coil base, at least one induction heating hole for placing rivets is formed in the closed structure; the coil base is connected with an induction heating power supply through a cable. According to the utility model, accurate positioning of a rivet heating area can be realized, and uniform temperature distribution in the heating process is ensured, so that the quality of rivet annealing treatment is effectively ensured, and the qualified rate and the reliability of products are improved; the operation process is simple and easy to understand, and the heating process is stable and reliable.

A heating assembly (12) for an aerosol generator (10). The heating assembly comprises an airflow channel (14) and a heating element (38). The heating element is disposed at least partially within the airflow channel, or at least partially surrounding the airflow channel. The heating element comprises one or more through-holes (32) to allow air flowing through the airflow channel to flow through the heating element. The heating element is an induction heating element equipped with a magnetic flux concentrater. An aerosol generator, a cartridge for the aerosol generator, and an aerosol generating system comprising the aerosol generator and cartridge are also disclosed.