35 results about "Microwave - action" patented technology

The invention discloses a vehicle head lamp ice film removing device which comprises a lamp assembly, and the ice film removing device is arranged in a shell of the lamp assembly. The ice film removing device comprises a microwave generator and a wave guide tube; the microwave generator generates and outputs a microwave; the waveguide guides the microwaves output by the microwave generator out of the reflecting cover of the lamp assembly and transmits the microwaves to the lens of the lamp assembly. The microwaves act on the ice film on the outer surface of the lens, and the ice film starts to loosen in a solid and hard state, so that the ice film is easy to separate from the lens.

This invention relates to the field of microwave detection technology, specifically to a broadband microwave rapid detection method based on atomic level electric field tuning, which mainly solves the problem of detection limitations in traditional Rydberg atom-based microwave information detection. The broadband microwave rapid detection method based on atomic level electric field tuning includes the following steps: 1) First, a probe light and a coupling light are applied sequentially to a Rydberg atom gas cell, and then the microwave to be measured is applied to the Rydberg atom gas cell; 2) A spatial gradient radio frequency electric field is applied within the Rydberg atom gas cell; 3) The spot of the probe light is projected into an optical camera to form an image set, the pixel signals within the image set are merged, and the splitting response of the EIT-AT spectrum is observed. The electric field strength and frequency of the microwave to be measured are calculated. This invention's detection method achieves the requirement for rapid detection of random microwave signals over a wide frequency range.

An apparatus for real-time monitoring of evolution of cracks caused by microwaves, comprising a microwave power supply, a microwave generator, a connecting waveguide, a multi-cavity mold, a bearing component, a cutoff waveguide (4), and an image acquisition assembly. The microwave generator is connected to the multi-cavity mold by means of the connecting waveguide; the bearing component is arranged in the multi-cavity mold; the bearing component is used for placing a sample; the bearing component can transmit microwaves; the cutoff waveguide (4) is mounted on the multi-cavity mold; the image acquisition assembly is arranged at an outlet of the cutoff waveguide (4); and the image acquisition assembly is aligned with the sample to acquire an image of the sample. Microwaves are generated by means of the microwave generator and act on a rock sample, such that the rock sample is heated to generate cracks, and the rock sample is photographed in real time by means of the image acquisition assembly, such that the evolution of the cracks of rock during the action of the microwaves can be monitored and recorded in real time, the development and evolution law of the cracks of the rock can be observed in real time, and the volume expansion of minerals can be quantitatively evaluated.

The present application relates to the field of oil and gaseous hydrocarbon preparation by microwave-driven polyolefin pyrolysis reforming. More particularly, it relates to a process method of microwave-driven catalytic polyolefin pyrolysis reforming. The polyolefin pyrolysis reforming is carried out by using a microwave reaction device with a PLC control unit, a carrier gas adjusting unit and a reaction unit; the polyolefin raw material is located at the bottom of the reaction unit, the catalyst is stacked on the polyolefin raw material to form a catalyst bed, and the bottom of the catalyst bed is in contact with the polyolefin raw material to form a horizontal material contact surface; the process method comprises: under the action of microwave, the polyolefin raw material undergoes a pyrolysis reaction at the material contact surface to generate primary pyrolysis products; as the polyolefin raw material is consumed, the catalyst sinks under gravity and maintains the horizontal material contact surface; the primary pyrolysis products pass through the catalyst bed from bottom to top and are gradually pyrolyzed into oil components and / or gaseous hydrocarbon components, thereby realizing the catalytic reforming of the polyolefin raw material.

The present invention belongs to the field of rock mass crack research experiments. Provided is a test system for real-time permeability enhancement based on microwaves. The test system comprises: a microwave generator, a straight waveguide, an omnidirectional-irradiation coaxial antenna mechanism and a permeability test mechanism, wherein an output end of the microwave generator is connected to the straight waveguide, and an output end of the straight waveguide is provided with the omnidirectional-irradiation coaxial antenna mechanism; each annular assembly comprises a ceramic inner ring and a metal outer ring; and a microwave irradiation opening is formed between two adjacent annular assemblies, such that microwaves irradiate outwards via the microwave irradiation opening. By means of the present invention, diffused microwaves are formed inside a specimen, and the microwaves are uniformly distributed in all directions inside the specimen via the microwave irradiation opening, thereby expanding the microwave action range; and during the process, flow rate changes are recorded in real time, so as to comprehensively reflect the permeability of the specimen, thereby simulating the real-time evolution characteristics of permeability during the in-situ microwave modification of a reservoir.

The application discloses a preparation method and application of a microwave-regulated MXene-based in-situ oxidation composite gas-sensitive material, and belongs to the technical field of gas sensing materials and functional nanomaterials. The method comprises the following steps: placing MXene in a microwave tube furnace device, and performing sintering treatment under the action of microwaves to obtain the MXene-based in-situ oxidation composite gas-sensitive material; wherein the microwave action conditions are as follows: the microwave frequency is 2.45 GHz, the microwave power is 1000-1800 W, and the treatment time is 10-40 minutes; and the sintering treatment temperature is 300-600 DEG C. The method has the advantages of simple process, short cycle and strong controllability, and is suitable for controllable preparation and performance optimization of the MXene-based gas-sensitive material.

The utility model relates to the technical field of food detection, in particular to a solid food heavy metal microwave digestion device, which enables the action of a solid food sample and microwaves to be more uniform and improves the digestion efficiency by enabling the moving track of a digestion tank to be more complex. Comprising a box body and a controller, a horizontal partition plate is installed at the bottom of the box body, the rotary table is rotatably installed on the horizontal partition plate, an output shaft of the speed reduction motor is connected with the center of the lower end face of the rotary table, the multiple rotary seats are rotatably installed on the rotary table, and the multiple rotary seats are rotatably installed on the rotary table; the plurality of rotating seats are circumferentially and uniformly arranged around the circle center of the rotating disc, outer gear rings I are concentrically mounted on the outer walls of the plurality of rotating seats, inner gear rings I are mounted on the horizontal partition plate, the inner gear rings I are meshed with the plurality of outer gear rings I, loading mechanisms are mounted in the plurality of rotating seats, and the plurality of digestion tanks are detachably mounted on the plurality of loading mechanisms respectively.

The invention provides a microwave controlled-release asphalt self-healing capsule and a preparation method thereof, and the preparation method comprises the following steps: firstly, adding nano ferroferric oxide into a sodium alginate solution, and carrying out resonance dispersion to form a uniform and stable suspension; adding a low-viscosity asphalt regenerant and an emulsifier into the turbid liquid, and carrying out resonance emulsification to form a uniform emulsion; dropwise adding the emulsion into a calcium chloride solution, and curing and cross-linking to form a wet capsule; finally, the wet capsule is filtered out, washed and dried, and the multi-cavity calcium alginate / ferroferric oxide asphalt self-healing capsule is obtained. Microwave action targets are built on the capsule shell and the wall of the inner cavity, a release diffusion channel is formed through the microwave effect of nano ferroferric oxide, active quantitative release of the asphalt regenerant in the capsule cavity is achieved, the capsule can rapidly release the inner regenerant through excitation of external microwaves in the low-temperature service environment, and the service life of the capsule is prolonged. The crack healing in a low-temperature environment is promoted; the regeneration of the aged asphalt is realized.

A method for evaluating error codes of a PSK data transmission system of an unmanned aerial vehicle under the action of high-power microwaves comprises the following steps of: performing mathematical modeling analysis on narrow-band high-power microwave interference existing in a working environment of the unmanned aerial vehicle and an internal demodulator model, and performing mathematical description on an internal link of a target system demodulator applied by NHPM; according to the method, the bit error rate analytical expression under the normal working condition and the NHPM interference condition can be obtained, and the mathematical expected value of the bit error rate generated under the specific environment can be described by substituting the data transmission system parameters and the interference parameters into the analytical expression, so that an effective means is provided for evaluating the bit error rate of the unmanned aerial vehicle data transmission system with known high-power microwave interference parameters.

The invention discloses a deep hard rock microwave-assisted rock breaking drilling system, which relates to the technical field of rock breaking and comprises a ground control and energy supply system, a flange plate main body and a microwave generator. The overall structure of the system adopts modular design, the system is formed by sequentially connecting the ground control and energy supply system, the microwave generator, the microwave transmission assembly, the microwave drill bit assembly and the cooling and sealing system, and in the using process, microwaves output by the microwave generator are transmitted to the end of a drill bit through the waveguide transmission assembly; meanwhile, the mechanical drilling driving device drives the drill bit to achieve conventional drilling operation, so that a microwave pre-splitting and mechanical crushing cooperative rock breaking mode is formed, a microwave transmission assembly in the system is arranged in a drill column, stable transmission is achieved through a sealing protection structure, and the mechanical crushing effect is achieved. The cooling system is used for reducing system temperature and guaranteeing structural safety.

This invention provides a microwave roasting equipment and process flow for iron extraction from red mud, relating to the field of red mud iron extraction technology. It includes a fixed base frame with a rotary kiln mounted on top. The rotary kiln comprises a furnace shell, furnace tubes, a discharge end pipe, a feeding assembly, a preheating assembly, a retention assembly, and a drive assembly. By incorporating the preheating and retention assemblies, this invention achieves effective preheating of the red mud particles, reducing the energy consumption required for roasting. Simultaneously, the retention assembly ensures uniform microwave action on the red mud particles, effectively improving the heating and roasting efficiency. The combined effect significantly reduces energy consumption during red mud roasting, and through this novel red mud iron extraction process, the iron grade of the obtained iron concentrate is greatly improved.

The invention relates to the technical field of smart kitchens, in particular to a control method and device of cooking equipment, electronic equipment and a storage medium, the method is applied to a control unit in the cooking equipment with a microwave cooking assisting function, and the cooking equipment further comprises a microwave generator, a steam generator and a heating element. The microwave generator, the steam generator and the heating element are respectively connected with the control unit; the method comprises the following steps: in response to a microwave-assisted cooking instruction, obtaining microwave power and an intervention stage in the microwave-assisted cooking instruction; the microwave power and the intervention stage are obtained by responding to the microwave cooking assisting instruction, the microwave effect is accurately controlled, the problem of uncontrollability in a traditional mode is solved, and cooking flexibility and precision are improved; the target duration is calculated through an algorithm, intelligent time management is achieved, the cooking time is shortened, and the taste and nutrition of food are reserved; microwave, steam and baking functions are cooperated to work efficiently, personalized requirements are met, and user operation experience is optimized.

The invention discloses a method for automatically identifying pi pulse time of a mercury ion microwave clock, which comprises the following steps of: setting a time sequence: performing on-off operation by external equipment according to a specified time sequence; fluorescence signals are collected, and the single-chip microcomputer is used for collecting the fluorescence signals; performing transition probability scanning, setting microwave source dot frequency, microwave action starting time, microwave action stopping time and microwave action time stepping, and performing transition probability scanning in a Rabi mode by using an external reference source as a reference signal to obtain a transition probability scanning curve; and based on the transition probability spectral line, carrying out nonlinear fitting on the data, drawing a new transition probability function curve, solving a new transition probability function derivative, further confirming a pi pulse range, and identifying the pi pulse. The method provided by the invention has the advantages of full-automatic operation, high intelligent identification precision and good system flexibility, the experiment efficiency is improved, and the experiment error is reduced.

The invention belongs to the technical field of polymer functional composite materials, and particularly relates to a microwave foamed epoxy resin-based porous composite material and a preparation method thereof. The epoxy resin-based porous composite material is prepared from the following raw materials: an epoxy resin matrix, a foaming agent and a plurality of surface modified glass beads, and the epoxy resin matrix and the foaming agent are foamed and cured under the action of microwaves to form a three-dimensional interpenetrating porous structure with mutually communicated foam holes; the plurality of surface modified glass beads are uniformly dispersed in the three-dimensional interpenetrating porous structure. According to the invention, water is used as a green foaming agent, and efficient and uniform foaming of epoxy resin is realized by combining the heating characteristic of a microwave body; the surface modified glass beads are used as heterogeneous nucleation points, so that the cell size and distribution of the composite material are precisely regulated and controlled, and an ideal porous acoustic structure is formed; the interface strengthening effect mediated by the silane coupling agent remarkably improves the binding force of the filler and the matrix, and the mechanical property of the material is guaranteed while the lightweight of the material is realized.

A vehicle headlight deicing film device includes a lamp assembly and a deicing film device is arranged in a housing of the lamp assembly. The deicing film device includes a microwave generator and a waveguide tube. The microwave generator generates and outputs a microwave. The waveguide tube guides the microwave output by the microwave generator out of a reflector of the lamp assembly and transmits the microwave to a lens of the lamp assembly. The microwave acts on the ice film on the outer surface of the lens, and the solid and hard state of the ice film begins to loosen, making it easy to separate from the lens.

The application provides a method for catalytic microwave activation of persulfate for degradation of organic wastewater, in which, lanthanide metal and eighth group transition metal oxide or composite oxide are used as catalysts, persulfate is catalytically activated under the action of microwaves, and organic pollutants in the organic wastewater are catalytically oxidized. The absorption rate of microwaves is improved, the catalytic activity of persulfate is synergistically enhanced by microwaves, the degradation effect on antibiotics and the like is further enhanced, and the treatment demand of people for the organic wastewater is met.

This invention discloses a microwave-absorbing and heating coating for metal cookware used in microwave ovens and its preparation method. The microwave-absorbing and heating coating is prepared from layered Mxenes powder, magnetic iron tetroxide powder or γ-iron oxide powder, tungsten carbide powder, polyvinylidene fluoride powder, aluminosilicate powder, and a high-temperature resistant glass adhesive. This invention uses the microwave-absorbing and heating coating material as a heat source, utilizing the heat generated by the absorbing material under microwave action, which can solve the problem that metal cookware cannot heat the food inside the cavity in a microwave oven.

The invention discloses an aerosol generating device, an aerosol generating system and an aerosol generating product thereof. The aerosol generating device comprises a microwave generator and an atomizing cavity connected with the microwave generator, the microwave generator comprises a microwave generation circuit used for generating a microwave signal; the microwave transmitting antenna is connected with the microwave generating circuit and is used for guiding the microwave signal into the atomization cavity; and the connector is connected with the microwave transmitting antenna and is used for being matched with the microwave transmitting antenna to lead the microwave signal into the atomization cavity. The aerosol generating device has the beneficial effects that the aerosol generating device introduces a microwave signal into the atomization cavity through the connector and the microwave transmitting antenna, so that a microwave field is formed in the atomization cavity, heat is generated by utilizing intermolecular vibration under the action of microwaves, aerosol is generated on the basis that an aerosol product does not make contact with the microwave transmitting antenna, and the atomization effect is improved. And the use safety is improved.

The embodiment of the invention provides a transformer oil temperature measuring method and device based on a quantum sensing technology, and the method comprises the steps: exciting a diamond nitrogen-vacancy color center through laser, and achieving the spin initialization of the diamond nitrogen-vacancy color center; while the laser is applied, sweep frequency microwaves are applied to the diamond nitrogen-vacancy color center so as to regulate and control the spinning state of the diamond nitrogen-vacancy color center; detecting a fluorescence signal emitted by the diamond nitrogen-vacancy color center under the action of laser and sweep frequency microwaves; generating an optical detection magnetic resonance curve based on the fluorescence signal, wherein the optical detection magnetic resonance curve represents the change of the fluorescence intensity along with the microwave frequency; extracting a zero field splitting value from the optical detection magnetic resonance curve; according to the extracted zero field splitting value, the corresponding transformer oil temperature is obtained based on the function relation between the preset zero field splitting value and the temperature. According to the technical scheme provided by the invention, high-precision and high-stability transformer oil temperature measurement can be realized.

The present application belongs to the technical field of shale oil heating modification, and particularly relates to a shale oil heating modification reaction device, which comprises a heating tank body, two microwave generators, a resonance cavity installed on the inner side of the heating tank body, a driving motor installed on the lower end of the heating tank body, a threaded rod fixedly connected to the upper end of a rotating shaft, a plurality of sliding grooves formed on the inner wall of the heating tank body, a plurality of sliding blocks slidably connected to the sliding grooves, a ring groove formed in the heating tank body, a placing basket fixedly connected to the sliding blocks, an insulating empty barrel fixedly connected to the center of the placing basket, a limiting block fixedly connected to the lower end of the insulating empty barrel, a driving block fixedly connected to the side surface of the rotating shaft, a threaded ring fixedly connected to the lower side of the insulating empty barrel, a sealing cover installed on the upper end of the heating tank body, and a water outlet hole formed through the lower end of the heating tank body. The present application can uniformly make the microwave act on the shale oil rock sample, and then uniformly heat the sample to improve the heating effect.

A conveying device for continuous heating and microwave sterilization and insect killing belongs to the technical field of conveying equipment and comprises a conveying pipe, a transmission shaft, a spiral blade, an electric spiral conveyor of a motor speed reducing mechanism, microwave sterilization equipment, an electric heating fan, voltage adjusting equipment and a fixing cylinder. The microwave sterilization equipment, the electric heating fan, the fixed cylinder and the electric screw conveyor are mounted together, and the power output end of the voltage regulation equipment is electrically connected with the power input end of the electric screw conveyor. Under the combined action of related structures, multiple functions of conveying, electric heating, microwave sterilization and insect killing are integrated, the equipment is relatively compact and convenient to use, and a hot air machine can output hot air to act on conveyed materials through a fixed cylinder and an air outlet hole of a transmission shaft while conveying the materials through a rotating shaft; meanwhile, microwaves are generated by multiple sets of microwave sterilization equipment to act on the materials, so that the continuous sterilization and insect killing effects are achieved, the working efficiency is improved, and the production cost is saved.

This invention discloses an asphalt concrete that combines ice-breaking and noise reduction with its manufacturing method, comprising the following raw materials by weight: 100-120 parts aggregate, 5-8 parts thermally conductive asphalt, 2-8 parts mineral powder, and 3-5 parts noise-reducing filler. The aggregate, noise-reducing filler, and mineral powder are stirred for 20 seconds, then the thermally conductive asphalt is added, mixed, and shaped to obtain the asphalt concrete that combines ice-breaking and noise reduction. Modified silicon carbide is introduced into the thermally conductive asphalt, with carbon nanotubes as the carbon source, silicon powder and silicon dioxide as the silicon source, and cobalt acetate as the cobalt source. Modified silicon carbide is prepared by solid-state sintering, in which cobalt atoms enter the silicon carbide lattice to prepare cobalt-doped silicon carbide. While silicon carbide itself has excellent thermal conductivity, the introduction of cobalt gives the modified silicon carbide magnetism and improves its microwave absorption performance. Under microwave action, it can quickly melt snow and break ice, and also improves the thermal conductivity of the asphalt, further improving the ice-breaking performance.

The invention provides graphene powder and a preparation method and application thereof.The preparation method of the graphene powder comprises the steps that in a high-vacuum-degree state, inert gas serves as background gas in a microwave plasma device, and uniform and stable glow plasmas are spontaneously generated under the action of microwaves; increasing the flow of the inert gas and increasing the system pressure to a low vacuum degree state, so that the glow plasma is converted into a state in which the glow plasma and an electric arc coexist; saturated steam of a liquid carbon source is brought into a reaction cavity of a microwave plasma device through negative pressure of a system, carbon source molecules are cracked under the impact of high-energy particles under the action of glow plasmas and electric arcs, and cracked activated carbon components are nucleated and grow to obtain graphene powder. According to the method, the graphene powder is prepared by adopting a microwave plasma technology, and the nanoscale graphene powder with excellent dispersity can be continuously and efficiently prepared.

The invention provides red mud iron extraction microwave roasting equipment and a technological process, and relates to the technical field of red mud iron extraction, the red mud iron extraction microwave roasting equipment comprises a fixed underframe, the top of the fixed underframe is provided with a rotary kiln, and the rotary kiln comprises a furnace shell, a furnace tube, a discharging end tube, a feeding assembly, a preheating assembly, a retention assembly and a driving assembly. By arranging the preheating assembly and the retention assembly, red mud particles can be effectively preheated, energy consumption needed by roasting can be reduced, meanwhile, the retention assembly can achieve the uniform effect of microwaves on the red mud particles, the heating and roasting efficiency of the red mud particles is effectively improved, the energy consumption in the red mud roasting process is greatly reduced through combination of the preheating assembly and the retention assembly, and the energy consumption is reduced. Through the novel red mud iron extraction process, the iron grade of the obtained iron ore concentrate is greatly improved.

The invention relates to the technical field of plastic molding, and provides a rubber sleeve and a preparation method thereof, and a refrigerator door seal, the rubber sleeve is obtained by carrying out microwave treatment on a mixture composed of polyvinyl chloride resin as a main body resin, a flexibilizer and a lubricant, and then carrying out extrusion molding; the flexibilizer is selected from nitrile rubber; the lubricant comprises acrylate and oxidized polyethlene wax; according to the invention, a microwave cross-linking mode is adopted, the nitrile rubber is used as a flexibilizer, the acrylate is used as a lubricant, under the action of microwaves, the polyvinyl chloride and the powdery nitrile rubber can react to form a micro-cross-linked network, and in a controllable microwave cross-linking time range, the tensile strength and the aging resistance of the material can be greatly improved; through the microwave effect and the formed micro-crosslinking structure, the combination between the acrylate and the polyvinyl chloride resin is tighter, so that the effect of a plasticizing system of the acrylate can be fully utilized, and the performance of the material is further improved.

A method for evaluating error codes of an FSK (Frequency Shift Keying) data transmission system of an unmanned aerial vehicle under the action of high-power microwaves takes binary frequency shift keying (2FSK) as a core, combines with a typical NHPM interference scene, and performs mathematical modeling analysis on narrowband high-power microwave interference existing in a working environment of the unmanned aerial vehicle and an internal incoherent demodulator model to evaluate the error codes of the FSK data transmission system of the unmanned aerial vehicle. The method comprises the following steps: applying NHPM to an internal link of an incoherent demodulator of a target system to carry out mathematical description, so as to obtain an error rate analytical expression under a normal working condition and an NHPM interference condition, and substituting a data transmission system parameter and an interference parameter into the analytical expression to describe an error rate mathematical expected value generated under a specific environment. Therefore, an effective means is provided for evaluating the bit error rate of a data transmission system of the unmanned aerial vehicle with known high-power microwave interference parameters, and the reliability of frequency shift keying communication of the unmanned aerial vehicle in the NHPM interference environment is improved.

The invention relates to a microfluidic cartridge (10) comprising an array chamber (14) in which an array (15) is bonded by means of an adhesive (16). The adhesive (16) contains at least one additive component which undergoes a chemical reaction with the adhesive (16) under the influence of microwaves, resulting in at least partial degradation of the adhesive (16). In a method for disassembling the microfluidic cartridge (10), the adhesive (16) is at least partially degraded by microwave irradiation, and the array (15) is subsequently removed from the array chamber (14).

This invention discloses a continuous microwave thermal conversion device and method for recovering glass fiber from decommissioned wind turbine blades, achieving efficient decomposition of organic components and clean recovery of inorganic fibers from decommissioned wind turbine blades. This invention utilizes the self-heating effect of materials and microwave absorbers under microwave action, significantly reducing reaction temperature and energy consumption. Uniform pyrolysis of materials is achieved in the microwave pyrolysis unit through a feeding hopper and a rake-type stirring device; the pyrolysis residue solids then enter the microwave oxidation unit for further oxidation and decomposition. The generated inorganic solids are separated by cyclone separation to obtain clean glass fiber, while the microwave absorber is sorted and returned to the system for recycling. The material residence time is controlled by adjusting the furnace inclination, and precise control and power optimization are achieved for different temperature zones using a multi-stage variable frequency microwave source. This enables continuous and efficient processing of large-size decommissioned wind turbine blades, effectively reducing secondary pollution and ensuring the quality of the recovered glass fiber while lowering the temperature and energy consumption of traditional heat recovery processes.

This invention belongs to the field of sludge treatment technology, specifically providing a method and system for reducing excess sludge from rural domestic sewage based on electrochemical and iron-carbon internal electrolytic coupling oxidation. The method includes: passing sludge into a microwave-coupled ultrasonic cell-breaking unit for microwave and ultrasonic treatment to obtain supernatant I and excess sludge I; passing excess sludge I into a pulsed electrochemical treatment unit for pulsed treatment to obtain supernatant II and excess sludge II; returning supernatant II to the treatment station's equalization tank; passing excess sludge II into a sedimentation and concentration unit for concentration to obtain supernatant III and concentrated sludge; returning supernatant III to the treatment station's equalization tank; and passing supernatant I into an iron-carbon internal electrolytic unit for treatment to obtain supernatant IV and excess sludge III. Excess sludge III is directly discharged, and supernatant IV is returned to the treatment station's equalization tank. This invention treats excess sludge from rural domestic sewage, achieving low-carbon emissions and reducing excess sludge volume in the sludge treatment system.

This invention discloses a process for preparing high-purity hydroxylamine by electromagnetic microwave-driven hydroxylamine salt pyrolysis and sublimation. The process specifically involves: adding a reducing boron salt to an aqueous solution of hydroxylamine salt; reducing metal ions in the hydroxylamine salt under microwave conditions; then adsorbing the metal ions through an electromagnetic field; concentrating, crystallizing, and centrifuging to obtain hydroxylamine salt with a metal impurity content of less than 100 ppb; subsequently, the hydroxylamine salt undergoes low-temperature pyrolysis and sublimation under vacuum and electromagnetic microwave action to obtain hydroxylamine crystals with a metal impurity content of less than 0.1 ppb, with a sublimation yield ≥85%. These hydroxylamine crystals are dissolved in ultrapure water to obtain an aqueous solution of hydroxylamine with a metal impurity content of less than 0.1 ppb. This invention utilizes the synergistic effect of microwaves and electromagnetic fields to generate hydroxylamine crystals through pyrolysis and sublimation at a relatively low reaction temperature with high selectivity, achieving safe and efficient results with a single-pass yield of not less than 85% from the electromagnetic microwave-driven pyrolysis and sublimation of hydroxylamine sulfate and hydroxylamine phosphate.