52results about How to "Overcome stability" patented technology

The invention belongs to the technical field of ocean engineering, and discloses a column structure response forecasting method and system based on a residual connection neural network. According to the method, a physical information neural network (PINN) and a Kolmogorov-Arnold (KAN) theorem are combined, and the precision and the calculation efficiency of a prediction model are remarkably improved through a multi-layer nonlinear mapping framework and residual connection optimization. According to the method, physical equation constraint loss and environmental parameter input are introduced, so that the model can more accurately simulate dynamic response characteristics in an extreme marine environment, and the limitation of a traditional method in nonlinear factor processing and real-time calculation is effectively solved. Experiments show that the method has remarkable advantages in the aspects of accuracy, generalization ability and calculation efficiency, provides reliable and efficient technical support for ocean platform structure design and operation state monitoring, and has important theoretical value and wide application prospects.

The invention discloses an event detection and extraction method and system based on entity and trigger word fusion recognition. The method comprises the steps that trigger words in event text data are extracted; mapping the event text to a vector space based on a word embedding model, and constructing an event text classifier to perform similarity measurement on all words of which the part-of-speech is a verb and the trigger word in the event text; constructing an event detection model to obtain an event category in the event text data; identifying a key element entity of the event; constructing a dependency syntax tree to represent a syntactic dependency relationship of the sentences; obtaining the score of the dependency syntax tree; and inputting the preprocessed word vector and the part-of-speech vector representation obtained through supervised learning into a role tagging model for fusion to obtain a vector representation with part-of-speech features, and after training, carrying out conditional random field processing to obtain a final semantic role tag of the word. Accurate event detection based on entities is realized, and high-quality extraction of events is towed.

The invention relates to a repair welding repair method for casting defects of an equiaxed crystal high-temperature alloy structural part, belongs to the technical field of welding repair, and solves the problems that in the prior art, the repair welding success rate of the casting defects of the equiaxed crystal high-temperature alloy structural part is low, the repair welding result stability is poor, and the repair welding accessibility of local narrow parts is poor. The invention discloses a repair welding repair method for casting defects of an isometric crystal high-temperature alloy structural part. The repair welding repair method comprises the following steps that S1, defects are removed in a mechanical mode, and grooves are machined; s2, cleaning before welding; s3, the structural part is placed in a vacuum argon-filled welding box; s4, arc striking welding, wherein the welding process passes are arranged as follows: (1) after arc striking, 2-4 seconds are used firstly to enable the base metal to form a molten pool; (2) adding wires into the molten pool, and slowly feeding the wires; 3, welding spots are fully stacked through fractional wire feeding, and annular arc conveying is carried out; (4) the electric arc is slowly conveyed for a circle along the weld toe; (5) ending; and S5, performing fluorescence and X-ray detection after cooling. The casting defects of the isometric crystal high-temperature alloy structural part are efficiently and stably repaired.

The invention belongs to the technical field of road engineering materials, and discloses a wide-temperature-range crack pouring adhesive based on rubber modified asphalt and a preparation method thereof.The wide-temperature-range crack pouring adhesive is prepared by taking the rubber modified asphalt as a matrix through a response surface method and adding SBS, basalt fibers and a modifier. The performance of the material is tested through a conventional test, and meanwhile, a test with more characteristics in northeast regions is provided, and the performance of the material is detected through injection depth, viscosity, low-temperature stretching after aging and freeze-thaw cycle stretching. Results show that a test designed by a response surface method has very strong reliability, and the modified heating type crack pouring adhesive added with the basalt fiber can significantly improve the high and low temperature performance of the crack pouring adhesive, and also has good anti-aging performance and freeze-thaw cycle resistance. And the filling depth and the viscosity of the sealant are not obviously lower than those of the same type of sealant.

The utility model discloses a low fluctuation power supply parallel operation equipment, including n power supply modules and load connection terminal, each power supply module includes user input, power conversion, acquisition, CAN communication module and MCU module, the power supply interface of each power supply module is connected with the load connection terminal through a flexible wire, and the power supply modules are in communication connection through a CAN bus. One of the n power supply modules is set as a host, the other power supply modules are set as slaves, and each power supply module adjusts output voltage to enable the voltage to be equal to Vset and collects real-time current data; the slave computer transmits data to the host computer, the host computer receives the data, calculates a current sharing reference and sends the current sharing reference to the slave computer through a bus, and each power supply module calculates and obtains a new voltage stabilization value Vnew according to the current sharing reference and a set Vset. Compared with the prior art, the utility model has the advantages of reducing system oscillation, improving voltage stability and reducing equipment cost.

The invention provides recombinant human III-type collagen as well as a preparation method and application thereof, and belongs to the technical field of protein engineering, the amino acid sequence of the recombinant human III-type collagen is shown as SEQ ID No.1, and the nucleotide sequence of a gene for coding the recombinant human III-type collagen is shown as SEQ ID No.2; the invention also provides a method for expressing the recombinant human III type collagen in mammalian cells. The recombinant human III-type collagen provided by the invention is high in purity, has triple helix characteristic circular dichroism, has the molecular weight of 21.8 kDa, is far smaller than that of natural full-length collagen, has the effects of promoting cell proliferation and cell migration, and reduces obstacles for the collagen to penetrate through a skin barrier to exert biological functions.

The invention relates to the technical field of data processing, and provides an error compensation method, device and equipment for shaft part machining and a storage medium, and the method comprises the steps: obtaining the measurement data of the actual size of a shaft part, calculating the deviation data, inputting the measurement data and the deviation data into a preset neural network compensation model, compensation parameters and machining stability parameters are obtained, the path of a machining tool is adjusted based on the compensation parameters, a target path machining instruction is obtained and subjected to spectral analysis, a corrected instruction is obtained and checked through the machining stability parameters, and the shaft part is machined after the target machining instruction is obtained. The actual size of the shaft part is measured, deviation is calculated, a machining path is adjusted in combination with a neural network compensation model, a machining instruction is optimized through a spectral analysis technology, and the problems that errors of dynamic changes in the machining process cannot be coped with, tremor is likely to occur in the machining process, and the part compensation difficulty is aggravated are solved. And the problem of insufficient real-time error correction exists.

The invention belongs to the technical field of medical experimental instruments, and provides an electrode device for subcutaneous implantation, comprising: an electrode comprising a cylinder structure and a barb structure arranged at one end of the cylinder structure; one end of the wire is connected with the cylinder structure; and the interface is connected to the other end of the wire. The section width of the electrode can be increased through the cylinder structure, the electrode can be stably implanted subcutaneously, and electrode displacement or damage caused by animal activity or tissue growth can be reduced. The barb structure enables the electrode to be better fixed subcutaneously, so that the electrode can be accurately positioned, the accuracy of an experimental result and the repeatability of an experiment are improved, and the complexity of surgical operation is also reduced.

The invention discloses a waste gas degradation treatment effect evaluation method and system, and relates to the technical field of waste gas treatment.The waste gas degradation treatment effect evaluation method comprises the steps that working condition parameters, pollutant concentration and reaction product spectral signals are synchronously collected in the operation process of a waste gas treatment device, and multi-source data are preprocessed to form a time sequence feature set; based on a time sequence feature set, carrying out feature modeling on the spectral signal, extracting main features of a product, comparing the main features with a standard fingerprint database, identifying an abnormal offset degree generated by a by-product, constructing a digital twin model by using working condition parameters, generating an ideal operation state, and calculating a deviation value between reality and ideal; the removal rate is calculated according to the pollutant concentration, the energy efficiency index is generated in combination with the energy consumption parameter, and the removal rate, the energy consumption index, the by-product deviation and the working condition deviation are integrated to form a multi-dimensional operation state vector. The controllability and response speed of the waste gas degradation treatment efficiency are effectively improved, and the intelligent adjusting capacity of the waste gas degradation process is remarkably enhanced.

The invention relates to the technical field of lithium ion batteries, in particular to a composite positive electrode material and a preparation method thereof, a lithium ion battery and electric equipment. The invention provides a preparation method of a composite positive electrode material, which comprises the following steps: mixing a bulk phase dopant, a lithium source and a ternary precursor to obtain a mixture I, and respectively sintering at 815-830 DEG C for 12-14 hours and at 760-770 DEG C for 8-10 hours to obtain a sintered material I-1 and a sintered material I-2; a first coating agent and a second coating agent are mixed with the sintered material I-1 and the sintered material I-2 respectively and then coated, and a sintered material II-1 and a sintered material II-2 are obtained; and mixing the sintered material II-1 and the sintered material II-2 to obtain the composite positive electrode material. According to the invention, the bulk phase dopant and the doped ternary precursor core layer are firstly added, then the first coating agent and the second coating agent are added, and the surface functional layer is synthesized, so that the composite positive electrode material has both high capacity and high cycle stability under the synergistic effect of the bulk phase dopant and the doped ternary precursor core layer.

The present application relates to complex stratum pile foundation construction technology field, disclose a kind of riprapping stratum full casing rotary and rotary drilling combined hole construction method, comprising the following steps: leveling construction ground;Pile position lofting is carried out, and guiding positioning structure is set;First section casing with grouting passage is installed on full casing rotary drilling machine, grouting passage is used for grouting;Through full casing rotary drilling machine clamping casing, drive casing press into riprapping stratum, while rotary drilling carries out soil taking;Slurry is injected by grouting passage, and riprapping body outside casing is consolidated to form annular consolidated body;The elevation difference between the soil taking surface of rotary drilling and the bottom end of casing is controlled to be within the preset range, and the following protection wall is formed;Lengthen next section casing, and connect adjacent grouting passage;Until casing penetrates riprapping layer and main sand layer and enters lower stable layer.The present application can solve the problems of difficult riprapping stratum hole forming, easy hole collapse, easy grouting leakage and easy drill sticking.

This utility model is entitled "A Multi-Point Termite Monitoring System with Centralized Photovoltaic Energy," belonging to the field of termite monitoring technology. It primarily addresses the problems of relatively poor termite monitoring transmission and communication effects, and the inability to use existing termite monitoring devices due to battery failure, as well as environmental pollution. Its main features include: multiple termite monitoring devices, solar photovoltaic modules, a vertical support frame, and a field control box; wherein the solar photovoltaic modules and the field control box are mounted on the vertical support frame; the field control box contains a control module and a solar power circuit connected to the solar photovoltaic modules; the solar power circuit and the control module are electrically connected to the attraction triggering module and signal acquisition module in the multiple termite monitoring devices via wires. This utility model features good and stable termite signal transmission and controllable centralized solar power supply, and is mainly used for monitoring termites in the soil and attracting and killing flying ants during swarming season.

The embodiment of the utility model discloses an anti-misplug protection module, an interface power supply circuit and electronic equipment, and belongs to the technical field of power electronics. The anti-misplug protection module is arranged in an interface power supply circuit and comprises a parallel diode, the anode of the parallel diode is connected with the current limiting output end of a current limiting switch in the interface power supply circuit, and the cathode of the parallel diode is connected with the power supply output end of the interface power supply circuit. And the parallel diodes are used for reducing forward voltage drop to prevent voltage fluctuation caused by sudden load change of the access interface power supply circuit. According to the anti-misplug protection module provided by the embodiment of the invention, the voltage of the power supply output end of the interface power supply circuit can be stabilized only by additionally arranging simple electrical elements in the interface power supply circuit, voltage fluctuation caused by sudden change of a load connected to the interface power supply circuit is prevented, and the interface function is ensured to be stable. And interface misplug prevention protection is realized with low cost.

The invention discloses a bridge floor pushing high beam falling construction method which comprises a first-stage beam falling process and a second-stage beam falling process. The first-stage beam falling process comprises the steps that a first height-adjustable temporary support and a second height-adjustable temporary support which are used for supporting a guide beam are arranged on a concrete beam; the height of the first height-adjustable temporary support and the height of the second height-adjustable temporary support are alternately adjusted and lowered, and then the height of the guide beam is gradually lowered till the guide beam is close to the concrete beam; the second-stage beam falling process comprises the steps that a third height-adjustable temporary support used for supporting the steel box beam is arranged on the bent cap, and a fourth height-adjustable temporary support used for supporting the steel box beam is arranged on the support; and the guide beam is cut off, then the height of the third height-adjustable temporary support and the height of the fourth height-adjustable temporary support are alternately adjusted and reduced, and then the height of the steel box beam is gradually reduced till the steel box beam falls onto the support. According to the method, the beam falling stability can be improved, and the danger coefficient can be remarkably reduced.

The present invention discloses a preparation method and application of a bimetallic MOF-anchored Pt nanocluster catalyst, wherein the catalyst is Pt NC / NiMn‑MOF nanomaterial, the catalyst is Pt NC / NiMn‑MOF nanomaterial, which presents a monoclinic nickel-based metal organic framework (Ni‑MOF) structure in its X-ray diffraction spectrum, and the corresponding XRD diffraction angle 2θ ranges from 5° to 50°, wherein the obvious XRD diffraction peaks at 2θ angles of 8.9°, 15.5°, 28.3° and 30.6° correspond to the (200), (400), (20‑2) and (311) crystal planes in the NiMn‑MOF structure, respectively. NC / NiMn‑MOF composite nanomaterials can not only fully decompose urea to produce hydrogen for industrial applications, but also meet the needs of urea wastewater treatment in multiple occasions such as industry and life, realizing wastewater resource utilization and maximizing energy utilization.

The present invention provides a workpiece weld inspection and milling equipment, which belongs to the field of milling of large excess welds, and specifically includes: a robot; and a grinding part, which is connected to the head end of the robot body, and is used to grind the surface of the workpiece under the drive of the robot body, so as to control the removal depth of the weld, wherein the grinding part includes a grinding mechanism and a protection mechanism; the grinding mechanism includes: a frame; a workpiece detection component, which is used to detect the surface of the workpiece; a milling component, which is used to mill the surface of the workpiece according to the detection result of the workpiece detection component; a sanding belt grinding component, which is used to grind the surface of the workpiece according to the detection result of the workpiece detection component; a chain rotation component, which is used to drive the sanding belt grinding component in real time according to the detection result of the workpiece detection component. Through the processing scheme of the present application, the large excess weld is subjected to targeted and refined milling.

The invention discloses a directional transmitting device for acoustic OAM signals, which comprises a phased array circuit, a planar fan-shaped transducer array, a sawtooth lens and two gradient lenses, and is characterized in that active phase control and passive phase modulation are combined, and the gradient lenses are adopted, so that sound waves can deflect along a fixed direction; the OAM signal with controllable order is generated at any position in a two-dimensional plane by utilizing the relative rotation of the two gradient lenses. According to the invention, efficient and flexible vortex sound beam generation can be realized, so that better transmission performance can be provided in underwater sound vortex communication, the processing process of the lens is simplified, the lens has remarkable advantages in the aspects of cost and flexibility, and a wide application prospect is shown.

The present invention discloses a NO2 concentration measurement method based on DOAS, which includes the following steps: S1, obtaining original spectral data of different power intensities for preprocessing; S2, calculating the spectral correction coefficient and verifying it; S3, collecting the transmission spectra of NO2 of different concentrations for processing to obtain NO2 spectral data; S4, calculating the relationship between each spectral point and the concentration, calculating the optimal differential absorbance position data set and the optimal differential absorption cross section; S5, establishing an equation through the differential absorbance of the actually measured gas, the optimal differential absorbance position data set and the optimal differential absorption cross section, and obtaining the NO2 concentration value; S6, using the least squares method to correct the NO2 concentration value. The spectral data is corrected by the exponential spectral correction method to overcome the defects of poor stability and repeatability of the xenon lamp light source, thereby greatly improving the accuracy of the spectral data; improving the NO2 measurement accuracy and meeting the actual application needs.

The application belongs to the field of biological medicine and protein engineering, and particularly relates to a preparation method of a proteinase cryo-EM sample and a structural analysis method of the proteinase. The preparation method comprises the following steps: providing an enzyme solution of a target proteinase, adding an enzyme inhibitor of the target proteinase, collecting an incubation product supernatant after the obtained mixture is incubated, and preparing a cryo-EM sample by sucking the incubation product supernatant; the target proteinase comprises a serine protease, the target proteinase is located on a cell membrane, and / or the target proteinase is dependent on ATP. The application prepares a cryo-EM sample after the enzyme solution of the target proteinase is incubated by adding the enzyme inhibitor of the target proteinase, so that the problems of depolymerization of a membrane proteinase and instability of a protein soluble region can be overcome, the cryo-EM structure of a full-length membrane proteinase is successfully analyzed in electron microscope observation, and a precise reference is provided for subsequent design of specific targeted drugs.

The utility model discloses a multipurpose relay, and relates to the technical field of relays. The two sides of the top of the base are symmetrically and fixedly connected with frameworks, the tops of the frameworks are fixedly connected with an iron stand, the top of the base is provided with a coil, the top of the framework on one side is provided with an iron core, the outer sides of the frameworks are provided with fixing mechanisms, and the top of the iron stand is provided with an elastic mechanism. The fixing support and the fixing terminal are integrally designed, the first elastic block is arranged to be a polyurethane elastomer, certain flexibility is achieved, the magnetic core is more fully combined with the iron frame and the iron core, and therefore the problem that a magnetic circuit is dispersed or unstable due to the thickness tolerance of the magnetic core is solved.

The present application relates to the field of network live broadcast technology, and discloses an image segmentation mask correction method and its device, equipment, and medium, the method comprising: calculating a differential sliding average matrix of an image segmentation mask of a current video frame in a video frame sequence, the matrix being a moving average result of a confidence difference matrix of image segmentation masks between two adjacent video frames in the current video frame and its multiple previous video frames; calculating a confidence sliding average matrix of an image segmentation mask of a current video frame in a video frame sequence, the matrix being determined according to a moving average result of confidences of each pixel in the image segmentation masks of the current video frame and its multiple previous video frames; determining a confidence correction matrix of the current video frame according to the confidence sliding average matrix and the differential sliding average matrix; and correcting the image segmentation mask of the current video frame according to the confidence correction matrix. The technical solution of the present application has the advantages of plug-and-play, high versatility, and low computational complexity.

The invention relates to a preparation method of a red light material based on a ZnO solid film, and relates to the technical field of micro-nano electronic luminescent device manufacturing, and the preparation method comprises the following steps: S1, substrate pretreatment; s2, constructing a vacuum environment; s3, introducing working gas; s4, thin film deposition; s5, taking out the sample; s6, primary annealing; s7, secondary annealing; and S8, obtaining a finished product. According to the preparation method of the red light material based on the ZnO solid film, the preparation cost is remarkably reduced, the technological process is simplified, and the problems that in the prior art, the bulk single crystal processing cost is high, the doping method process is complex, and large-scale production is difficult are solved. The preparation method has the advantages that the preparation method is simple, expensive single crystal raw materials are not needed, toxic or magnetic high-cost doping elements such as cobalt (Co) are prevented from being introduced, the green and low-cost manufacturing process is realized, and the preparation method is simple in process flow, convenient to operate, good in repeatability and stability and very suitable for industrial large-scale commercial production.

The invention belongs to the technical field of membrane separation, and discloses a composite nanofiltration membrane based on bidirectional interfacial polymerization and a preparation method and application thereof, the preparation method comprises the following steps: step 1, loading two-dimensional porous graphene on the upper surface of a porous support membrane to obtain a two-dimensional porous graphene layer / support layer composite membrane; 2, enabling the lower surface of the composite membrane to be in contact with a water-phase amine monomer solution, so that the water-phase solution infiltrates the supporting layer and is diffused upwards to the two-dimensional porous graphene layer; 3, the upper surface of the two-dimensional porous graphene layer makes contact with an organic phase monomer solution, an aqueous phase amine monomer and the organic phase monomer are subjected to an interfacial polymerization reaction in in-plane pore channels of the two-dimensional porous graphene, a porous graphene / polymer separation layer is formed, in-situ shrinkage and packaging of the in-plane pore channels of the two-dimensional porous graphene are achieved, and the composite nanofiltration membrane is obtained. The composite nanofiltration membrane provided by the invention has efficient interception and high permeation flux on antibiotics, and shows good application universality and flexibility.

The invention belongs to the technical field of metal processing, and discloses a large part conveying and overturning mechanism which comprises a base, a curved groove is formed in the left side of the upper surface of the base, sliding grooves are symmetrically formed in the middle of the right side of the upper surface of the base, and gear sleeve seats are symmetrically and slidably connected to the front side and the rear side of the curved groove in a sleeving mode; a gear is fixedly installed at the output end of the driving base and meshed with the gear sleeve base. A large part and a rubber ball are clamped up and down through the upper feeding mechanism and the lower feeding mechanism, the large part and the rubber ball are clamped front and back through the two side pressing mechanisms, and the driving base drives the large part and the rubber ball clamped in the middle of the driving base to turn over clockwise through the feeding mechanisms and the side pressing mechanisms. The plane clamping plate solves the problem that when an existing plane clamping plate is used for clamping an inwards-sunken large part, the effective contact face of the plane clamping plate and the large part is smaller than the projection face of the large part and the plane clamping plate, and consequently local extrusion deformation of the large part is caused.

The invention belongs to the field of network space security, and particularly relates to a code vulnerability detection and row risk sorting method based on mixed features. Comprising the steps that a code data set is collected and preprocessed; extracting a vector marked by the code; extracting vectors of the code statements; learning a global feature vector of a graph structure of the code by adopting a graph attention network and a pooling layer; learning a semantic global feature vector of the code; performing weighted splicing on the global feature vector of the graph structure and the global feature vector of the semantics to obtain a mixed feature vector; inputting the mixed feature vector into a full connection layer and a Softmax layer for training to obtain a trained code vulnerability detection model; performing risk sorting on the code lines by using an HA-IG method to obtain a risk sorting result of the code lines; according to the method, codes of different types and structures can be better handled, and the adaptability to diversified vulnerability scenes is improved.

The embodiment of the invention relates to a method and device for training a model based on reinforcement learning, and the method comprises the steps: inputting a sample question into a to-be-trained target model, and obtaining a first target reply; inputting the sample questions into a plurality of trained contrast models to obtain a plurality of contrast answers; the sample question comprises text content; inputting the sample question, the first target reply and any first contrast reply in the plurality of contrast replies into an evaluation model to obtain D relative preference scores of the first target reply on D preset evaluation dimensions relative to the first contrast reply; performing aggregation operation on the respective D relative preference scores of the first target reply relative to each contrast reply, and determining a first reward score corresponding to the first target reply; and updating a parameter value of the target model at least according to the first reward score.

The present application relates to a time synchronization method, a power grid device, a network device and a storage medium. An embodiment of the present application includes: obtaining an air interface message from a network device; parsing the air interface message to obtain the network absolute time; and performing local time synchronization according to the network absolute time. According to the scheme provided in the embodiment of the present application, the air interface message of the network device is used to synchronize the time of the power grid device, and the power grid device does not need to synchronize the time through GPS / BDS, thereby overcoming the problem of poor reliability and stability of the GPS / BDS time synchronization signal, and effectively improving the reliability and stability of the time synchronization of the power grid device.

The invention relates to the technical field of multiplexing and demultiplexing devices in space division multiplexing, in particular to a mode group demultiplexing method and device based on a cascade diffraction network. According to the mode group demultiplexing method, a non-deterministic mode conversion strategy is adopted to design and optimize a cascade diffraction network, the degree of freedom of an output mode field is improved, phase plate design can be carried out on the larger degree of freedom, and therefore the light beam conversion efficiency can be remarkably improved, and the number of needed phase plates is greatly reduced. According to the invention, the defects of low energy efficiency and low stability in mode group demultiplexing are overcome, and the device loss is reduced by improving and optimizing the design.

The present invention discloses a preparation method and application of heat-resistant transparent polyether amide. A dicarboxylic acid monomer containing an ether bond and a diamine monomer are used to react in a solvent to form a salt, and nylon salt itself or with different types of nylon salts are melt polymerized to prepare the heat-resistant transparent polyether amide. The heat-resistant transparent polyether amide involved in the present invention can be prepared by melt polycondensation in one step. The obtained transparent polyether amide has good transparency and excellent heat resistance. The transmittance under 560nm visible light can reach 90.9%. In a N2 atmosphere, the 5% thermal decomposition temperature of the polymer can reach above 465°C. At the same time, it has good solvent resistance in non-strong polar solvents. It has broad application prospects in the fields of optical instruments, pressure-resistant windows, observation mirrors, sports equipment, special lamp covers, etc.

This invention discloses an efficient magnetic domain refinement method for ultra-low loss oriented silicon steel, relating to the field of steel material technology. The method includes: raw material preparation; hot rolling and final rolling; multi-stage thermomechanical processing; controlled suppression phase formation; secondary re-junction and magnetic field-induced selective growth; surface microstructure fabrication; low-temperature domain refinement annealing and alternating magnetic field coupling; segmented cooling and quality inspection. This invention, through controlled nanoscale suppression phase engineering, forms a high-density and uniform nanoscale suppression phase within the matrix, serving as pinning sites for grain boundaries and subgrain boundaries. This controls grain boundary migration dynamics during high-temperature secondary re-junction, overcoming the problems of abnormal grain growth and microstructure instability caused by uneven distribution and large size dispersion of traditional suppression phases. This avoids the root cause of large magnetic domains, improves the controllability and repeatability of the secondary re-junction process, obtains a more uniform orientation grain size distribution, and reduces localized magnetic domain enlargement and iron loss fluctuations caused by uneven grain size.