25949 results about "Metallurgy" patented technology

The invention relates to the technical field of material detection, in particular to an optimization method for industrial pure iron metallographic specimen defect detection based on YOLOv8obb. The method comprises the following steps: acquiring an industrial pure iron metallographic sample defect image; preprocessing the metallographic image; constructing a YOLOv8obb defect detection network, and optimizing the defect detection network to obtain an optimized defect detection model; according to the model, a DynamicConv is used as a convolutional layer of Bottleneck in a C2f module, a SimAM attention mechanism module is introduced into a backbone network, a tiny target detection head is added, and an NEFPN feature pyramid network is used as a neck multi-scale feature fusion network; and the preprocessed sample data image pair is used for performing defect detection model training, and the trained optimized defect detection model is used for performing industrial pure iron metallographic image defect detection, so that the detection precision and the detection efficiency are improved.

The invention relates to the technical field of powder metallurgy forming, and discloses a compressor valve plate forming device for powder metallurgy and a forming method thereof.The forming device comprises a lower die body, a guide support is fixed to the lower die body, an upper die body is slidably connected to the guide support, and a servo hydraulic cylinder is fixed to the top of the guide support; a servo hydraulic cylinder is arranged on the lower die body, the telescopic end of the servo hydraulic cylinder is fixedly connected with the upper die body, a forming groove is formed in the lower die body, a forming head is arranged on the upper die body, a feeding box is arranged on the lower die body, and a push rod assembly used for adjusting the working position of the feeding box is fixed to one end of the lower die body. The metal powder can be uniformly distributed in the forming groove, so that the thickness of a formed workpiece is uniform, a lubricant can be conveniently and quantitatively sprayed into the metal powder, the flowing property of the metal powder is improved, and the machining quality of the workpiece is improved.

The invention belongs to the technical field of powder metallurgy, and particularly relates to a high-strength tungsten alloy wire and a preparation method thereof, lanthanum oxide is uniformly doped through a ball-milling mixing and microwave sintering method, the recrystallization temperature of tungsten crystal grains is reduced by coordinating logarithmic strain of a rotary hammer, an annealing process and the like, the tungsten crystal grains uniformly grow, and the high-strength tungsten alloy wire is prepared. The wire diameter of the high-strength tungsten alloy wire is smaller than 30 microns, the tensile strength of the high-strength tungsten alloy wire is larger than or equal to 6200 MPa, and the percent of pass of the high-strength tungsten alloy wire is larger than or equal to 80%.

Embodiments described in this application relate generally to a system, an apparatus and / or methods for manufacturing electrodes by infusion electrolyte into compacted electrode materials. In some embodiments, a working electrode materials can be produced using an infusion mixing and manufacturing process. In some embodiments, a single-sided finished electrode can be produced directly from a dry powder mixture using an infusion mixing and manufacturing process. In some embodiments, a double-sided finished electrode can be produced directly from a dry powder mixture using an infusion mixing and manufacturing process. The electrodes produced by an infusion mixing and manufacturing process generally perform better than those produced by non-infusion processes.

The invention provides a Bayesian optimization-based hafnium zirconium oxide film process parameter optimization method and system. The method comprises the following steps: preparing a hafnium zirconium oxide film; obtaining the performance of the hafnium-zirconium-oxide thin film, and constructing a data set of process parameter conditions and corresponding performance of the hafnium-zirconium-oxide thin film; based on the data set, adopting a Bayesian optimization method to optimize the hafnium zirconium oxide film process parameters, comprising the steps of sequentially constructing an agent model, defining an acquisition function, iteratively optimizing the acquisition function and updating the agent model, and repeating the steps until a termination condition is met; and determining an optimal process parameter combination for preparing the hafnium zirconium oxide thin film according to a Bayesian optimization result. According to the method, the optimal process parameters of the hafnium zirconium oxide film can be quickly determined, and the cost of developing a semiconductor process is reduced.

The invention discloses a detection device and method for detecting the straightness and roundness of a powder metallurgy rod piece, and relates to the technical field of detection of the straightness and roundness of the powder metallurgy rod piece. A driving assembly used for driving a powder metallurgy rod piece to rotate, a supporting assembly used for supporting the powder metallurgy rod piece and a detection unit used for detecting the roundness of a round head of the powder metallurgy rod piece and the straightness of a long round rod are sequentially arranged on the table top of the workbench from left to right. The detection unit comprises a stepping motor fixedly arranged on the table top of the workbench and a rotary table fixedly arranged on an output shaft of the stepping motor, a microswitch is fixedly arranged at the bottom of each fixing rod, and an elastic piece of each microswitch is arranged downwards; a displacement sensor is fixedly arranged on the top surface of the floating plate, the movable rod is sleeved with a spring, and the upper end and the lower end of the spring are fixedly arranged on the floating plate and the long connecting plate respectively. The device has the beneficial effects that the working intensity of workers is greatly reduced, and the powder metallurgy rod piece detection efficiency is greatly improved.

The invention provides an Al-Mg alloy negative electrode current collector, a preparation method thereof and a negative-electrode-free sodium metal battery, and relates to the field of batteries. The preparation method of the Al-Mg alloy negative electrode current collector comprises the following steps: sputtering magnesium on the surface of an aluminum foil by adopting a magnetron sputtering mode, and forming a magnesium coating on the aluminum foil; and calcining the aluminum foil with the magnesium plating layer to obtain the Al-Mg alloy negative electrode current collector, and the Al-Mg alloy negative electrode current collector comprises an aluminum substrate layer and an Al-Mg alloy layer located on the aluminum substrate layer. According to the present invention, the Al-Mg alloy with characteristics of high sodium affinity and stable three-dimensional structure is introduced into the negative electrode current collector so as to induce the uniform deposition of sodium, inhibit the growth of sodium dendrites, reduce the loss of active sodium, and prolong the cycle life of the battery; the negative electrode current collector can be used in a sodium metal battery without a negative electrode. In addition, the method has the advantages of being easy to operate and low in raw material cost, and large-scale application and popularization are facilitated.

The invention provides an anode foil and a preparation method thereof, and relates to the technical field of capacitors. The preparation method comprises the following steps: preparing mixed aluminum slurry which comprises spherical aluminum powder, spherical aluminum oxide powder, a solvent, a binder and a dispersing agent; coating the surface of an aluminum foil substrate with the mixed aluminum slurry, and drying the aluminum foil substrate containing the mixed aluminum slurry to obtain a powder layer aluminum foil blank; sintering the powder layer aluminum foil green body to obtain a sintered foil; performing shot blasting treatment on the sintered foil to obtain an initial anode foil; cleaning and boiling the initial anode foil; and performing formation treatment on the boiled initial anode foil to obtain a target anode foil. According to the preparation method disclosed by the invention, the bending strength of the anode foil can be improved, and large-scale application of the anode foil can be realized.

The invention relates to a process for producing carburized directly reduced iron sponge from iron oxide material. Firstly, direct reduction is carried out by means of a reduction gas consisting at least predominantly of H2 and the carbon content in the iron sponge is then increased by means of a carburizing gas which is fed in, after which used carburizing gas is at least partly taken off while largely avoiding mixing with the reduction gas. The plant for producing carburized directly reduced iron sponge from iron oxide material comprises a reduction zone for directly reducing introduced iron oxide material to directly reduced product by means of reduction gas consisting predominantly of H2 and a reduction gas feed conduit opening into the reduction zone. It also comprises a carburization zone having a carburizing gas feed conduit opening into the carburization zone and a carburization offgas conduit.

The invention relates to a neodymium-iron-boron magnet with high residual magnetism and high coercive force, and the neodymium-iron-boron magnet comprises R2T14B main phase grains and a grain boundary phase A, the neodymium-iron-boron magnet comprises R, M, B and Fe, R comprises RL and RH, RL comprises at least one of Pr, Nd, La, Ce and Y, RH comprises at least one of Dy, Tb, Gd and Ho, M comprises Co, Cu and optional M ', and M' comprises one or more of Cr, Ni, Ga, Al, Zr, Nb and Ti; in the grain boundary phase A, the content of R is 29-55 at%, the content of Co is 3-7 at%, and the content of Cu is 7-20 at%. The neodymium-iron-boron magnet provided by the invention is low in impurity element content, the diffusion depth of heavy rare earth elements is effectively improved, and the neodymium-iron-boron magnet has high coercive force and high residual magnetism.

The invention relates to the technical field of silicon carbide product production, in particular to an automatic silicon carbide product cleaning device which comprises a bottom plate, the top of the bottom plate is provided with a first cleaning mechanism and a second cleaning mechanism which are arranged front and back and a liquid conveying mechanism located on the left side of the first cleaning mechanism, and the top of the bottom plate is fixedly connected with a top plate through a vertical plate; a conveying mechanism is installed on the top plate, and a storage mechanism is placed in the first cleaning mechanism. Through cooperative use of the first cleaning mechanism, the second cleaning mechanism and the transportation mechanism, the transportation mechanism firstly puts the storage mechanism loaded with the wafer into the spraying pool for first spraying and brushing, and then the transportation mechanism puts the storage mechanism into the soaking pool for multi-directional soaking and brushing; and then the conveying mechanism puts the storage mechanism into a spraying pool for spraying and washing, and the wafers are efficiently cleaned in a mode of combining spraying and scrubbing, soaking and scrubbing, and spraying and washing finally.

The invention discloses a preparation method of a low-internal-resistance copper foil for a lithium ion battery, which comprises the following specific steps of: 1, grinding a titanium cathode roller by using a grinding wheel of 50-600 meshes, removing an oxide layer, foreign matter points and the like on the surface of the cathode roller, and grinding by using a grinding wheel of 1000-1500 meshes; 2, the cathode roller falls into an electrolytic bath provided with an anode plate, and copper sulfate electrolyte is introduced into the electrolytic bath; and 4, a direct-current power supply is switched on, the current density of the power supply is 60-70 A / dm < 2 >, copper foil is subjected to electrolytic deposition on the arc-shaped cathode roller surface according to the Faraday principle, then the copper foil is subjected to acid pickling, water washing and passivation, and the lithium battery copper foil with the low internal resistance is obtained. On one hand, the problems of coating wrinkling and tab collapse in the battery preparation process are solved, on the other hand, the safety problem caused by excessive internal resistance and heating in the battery using process of an existing copper foil serving as a current collector is solved, and the performance such as the energy density and the rate characteristic of the battery is improved.

The invention provides a temperature regulation and control method in a photovoltaic glass annealing process, relates to the technical field of photovoltaic glass processing, and aims to obtain photovoltaic glass composition structure information, retrieve a frequent annealing curve based on the glass composition structure information and determine an annealing furnace for annealing treatment. Inputting the reference annealing temperature curve into a controller of the annealing furnace for annealing control, monitoring in real time, comparing the multi-point temperature time sequence with the reference annealing temperature curve, identifying a transverse temperature difference gradient and a longitudinal temperature difference gradient, and performing annealing quality influence analysis based on the transverse temperature difference gradient and the longitudinal temperature difference gradient. And regulating and controlling the annealing temperature according to the annealing quality influence index. The technical problems that in the prior art, the photovoltaic glass annealing temperature is lack of flexible regulation and control, so that the temperature accuracy and uniformity are poor, and the annealing quality defect exists are solved. The technical effects of ensuring the accuracy and uniformity of the annealing temperature and improving the annealing quality and performance of the photovoltaic glass are achieved.

The invention provides a titanium alloy forge piece forming characteristic detection and quality evaluation method based on machine learning. The method is applied to the technical field of artificial intelligence and quality detection and comprises the steps that temperature, pressure, deformation quantity and strain information in the titanium alloy forging process are collected in real time through a multi-mode sensor, and data preprocessing is carried out; a machine learning model is constructed and trained, the structured feature data set is input into the trained machine learning model, and a forming feature detection result of the titanium alloy forge piece is output; and the difference degree between the forming characteristic detection result and standard data in a quality standard database is calculated, the quality grade of the titanium alloy forge piece is determined according to the difference degree, and quantitative evaluation of the quality of the titanium alloy forge piece is achieved. According to the method, the detection precision of the titanium alloy forge piece is effectively improved, the calculation amount is reduced, and the self-adaptive optimization capability of the system is enhanced.

The invention discloses a preparation method of a high-uniformity titanium alloy bar, which comprises the following steps of: performing reversing upsetting and drawing on a round billet or a near-round billet, controlling the rotation times of drawing in the reversing upsetting and drawing, performing spheroidization in combination with dynamic recrystallization, and returning to the original temperature after forging to enable an alpha phase to be further subjected to static recrystallization, thereby obtaining the high-uniformity titanium alloy bar. Meanwhile, the beta phase is recovered to form a subcrystal structure, and the beta phase and the alpha phase are further subjected to static recrystallization to be refined by heating to T beta-(10-30) DEG C. The problems of cracking and non-uniform deformation caused by reversing upsetting in the prior art can be remarkably improved, and the cracking degree of the blank is remarkably relieved while the structure uniformity is improved.

The invention relates to the technical field of composite copper foils, in particular to a production process of a multifunctional composite copper foil, the composite copper foil and application of the composite copper foil. The invention provides a production process of a multifunctional composite copper foil. The production process comprises the following steps: S1, baking a carrier layer; s2, performing surface treatment through plasma treatment; s3, coating a film on the baked carrier layer through magnetron sputtering to form a bottom layer; s4, evaporating a vacuum evaporation layer on the base layer through vacuum evaporation; s5, plating a copper layer on the vacuum evaporation layer through water electroplating; and S6, slitting the sample. According to the production process, by optimizing the baking conditions, the sputtering technology and the evaporation parameters and introducing the plasma surface treatment technology, the binding force of the copper film and the base material is improved, the pinhole rate is reduced, the production efficiency and the coating uniformity are remarkably improved, and the product quality is improved. The problems that in the existing composite copper foil production process, the binding force between a copper film and a base material is poor, the pinhole rate of the copper film is high, the deposition speed is low, and the coating uniformity is poor are solved.

The invention discloses an electronic packaging heat dissipation substrate and a processing technology and application thereof. The electronic packaging heat dissipation substrate comprises a copper-clad diamond copper plate, a diamond sheet located on the copper-clad diamond copper plate and a first copper layer covering the diamond sheet. The copper-clad diamond copper plate comprises a diamond copper core material and a copper layer located on the surface of the diamond copper core material. The diamond copper core material and the copper layer form a composite board with a copper layer-core material-copper layer sandwich structure; and the copper-clad diamond copper plate, the diamond sheet and the first copper layer are connected into a whole through brazing. According to the electronic packaging heat dissipation substrate, the peeling and cracking risks can be reduced, and the problem of low heat transfer efficiency is solved.

The invention belongs to the field of battery piece manufacturing, and particularly relates to a sintering method and a sintering device for a copper paste battery piece, and the method comprises the following steps: 1) covering and wrapping the battery piece brushed with a copper paste grid line with a flexible isolation film; (2) carrying out oxygen isolation on the battery piece subjected to the step (1); (3) heating the battery piece in the step (2) to the sintering or curing temperature of the copper paste to finish the sintering of the copper paste; and (4) under the state of maintaining the step (2), transferring the battery piece covered with the isolating membrane in the step (3) to a cooling area for cooling, so that the temperature of the battery piece in the step (3) is reduced to be below the oxidation temperature of the copper paste. The problem of how to prevent the copper paste grid line from being oxidized in the battery sintering process is solved.

Provided herein are methods of filling features with molybdenum (Mo) that may be used for logic and memory applications. The methods involve treating the surface of feature prior to feature fill. In some embodiments, the methods involve treating the surface of feature by exposure to a molybdenum halide. In some embodiments, the methods involve treating the surface of the feature by selective oxidation, nitridation, or halogenation. Apparatus to perform the methods are provided.

The invention belongs to the technical field of laser processing, and particularly relates to a method for manufacturing a titanium alloy through wire powder coordinated multi-mode laser coupling additive manufacturing, and the method comprises the steps of base material pretreatment, multi-mode coupling laser construction, additive manufacturing, surface strengthening and the like. According to the titanium alloy part manufacturing device and method, material conveying is conducted in the mode that wire feeding and powder feeding are combined, structures with large areas in parts are rapidly manufactured through wire feeding, fine structures are manufactured through powder, and the titanium alloy parts can be efficiently manufactured in a high-precision mode. In the additive manufacturing step, multi-mode coupling annular laser is adopted, annular flat-topped pulse laser can accelerate flowing of a liquid phase before solidification, so that dendritic crystal arms formed through solidification in advance are broken to form new crystal nucleuses, then an equiaxed crystal structure is formed, and the strength and plasticity of the titanium alloy are improved. The annular flat-topped pulse laser can accelerate stirring of the molten pool, the heat mass conveying rate in the molten pool is increased, the element segregation phenomenon is relieved, and finally a uniform and stable titanium alloy structure is obtained.

The invention discloses stainless steel pipe multi-dimensional bending equipment, which belongs to the technical field of stainless steel pipe bending and comprises a rack, a moving mechanism is assembled on the rack, and a variable supporting mechanism is assembled in a mounting cylinder; by means of the arranged variable supporting mechanism, during use, a user needs to place a stainless steel pipe to be bent on the inner supporting unit in a sleeving mode, then one end of the steel pipe is fixed through the clamping mechanism, it is ensured that the position of the steel pipe is kept stable in the whole bending process, and in the bending preparation stage, an electric push rod serves as a power source; the inner supporting unit is driven to move to the preset bending position of the steel pipe along the preset track, meanwhile, the motor starts to work, the inner supporting unit is driven by the adjusting assembly to be gradually attached to and tightly abut against the inner wall of the steel pipe, uniform and effective supporting force is formed between the inner supporting unit and the inner wall of the steel pipe, and therefore in the follow-up bending process, the bending efficiency is improved. The inner supporting unit can effectively share bending force, and the sinking phenomenon caused by uneven stress on the inner side of the bent position of the steel pipe is obviously reduced.

The invention belongs to the technical field of metallurgical equipment intelligent control and digital twinning, and provides a metallurgical equipment twinning HMI control system based on multi-source data, and the system comprises a multi-source data collection module which is used for collecting the multi-source data; the data fusion processing module is used for performing data fusion processing on the multi-source data by adopting a space-time alignment algorithm and a feature extraction network; the digital twinborn modeling module is used for constructing a metallurgical equipment digital twinborn model by utilizing an improved deep belief network algorithm based on the fusion processing data; the HMI interaction module is used for dynamically presenting the fusion processing data and the operation state data of the metallurgical equipment digital twinning model based on the output of the digital twinning modeling module; and the intelligent control module is used for performing closed-loop control on the metallurgical equipment by adopting a self-adaptive predictive control algorithm. According to the invention, full-process intelligent management of the metallurgical equipment can be realized, and the operation efficiency, the control precision and the reliability of the metallurgical equipment are remarkably improved.

The invention belongs to the technical field of ceramic preparation, and particularly relates to silicon nitride ceramic and a preparation method thereof. The silicon nitride ceramic is prepared from the following raw materials in parts by weight: 80-99.5 parts of silicon nitride powder and 0.5-20 parts of a sintering aid, the silicon nitride powder is alpha-Si3N4 powder; the sintering aid comprises at least two of CaF2, Y2O3, MgO, Mg (OH) 2, Al (OH) 3, Al2O3, AlN, MgCO3, Mg (NO3) 2, Y (NO3) 3 and Al (NO3) 3. On the basis of an existing silicon nitride dissolution-precipitation sintering mechanism, by adding sintering aids such as low-cost calcium fluoride, introducing a gas-phase mass transfer mechanism and combining a low-cost direct-current electric field assisted sintering technology, low-cost and rapid preparation of the high-performance silicon nitride ceramic is achieved, the process is simple and efficient, and operation is easy to control.

The invention provides a TOPCon battery metallization method, and relates to the technical field of solar cells, and the method comprises the following steps: providing a blue diaphragm; preparing a metal seed layer on one side of the blue membrane and then drying; preparing a metal seed layer on the other side of the blue diaphragm, and then drying or sintering; preparing main and auxiliary grids on the metal seed layer on one side and then drying, wherein the main and auxiliary grids are made of non-silver paste; and preparing main and auxiliary grids on the metal seed layer on the other side, and sintering to complete metallization of the battery piece. In the invention, the main grid and the auxiliary grid are made of the non-silver paste, and the non-silver paste is used for replacing traditional silver paste, so that the use amount of silver is greatly reduced, the cost of raw materials is reduced, the production cost of the TOPCon battery is reduced, the dependence on noble metal resources is relieved when the TOPCon battery is produced, and the requirement of sustainable development is better met.

The invention belongs to the technical field of nondestructive testing, and discloses a vector coherence factor-based thick-wall austenitic stainless steel welding seam full-focus imaging method, which comprises the following steps of: acquiring full-matrix data through a TRL area array probe, constructing an imaging area, calculating a spatial relationship, optimizing a propagation path in combination with a Fermat principle, and obtaining a full-focus imaging result; the method comprises the following steps of: firstly, extracting an instantaneous phase of an ultrasonic signal to construct a vector coherence factor, reconstructing an imaging data matrix according to the coherence factor, and obtaining a phase coherence weighted full-focusing imaging result, so as to ensure that each pixel point can obtain an optimal propagation path, thereby generating a full-focusing image data matrix by adopting a point-by-point delay superposition technology; the method can effectively improve the signal-to-noise ratio and positioning and quantification precision of the thick-wall austenitic stainless steel weld joint detection image, and has good engineering application value.

The invention discloses a high-nickel ternary positive electrode material as well as a preparation method and application thereof. The chemical formula of the positive electrode material is LixNiyCozMaNbOc, M is at least one of Mn and Al, N is at least one of Ti, V, Nb, Zr, Ta, W or Mo, x is larger than or equal to 0.9 and smaller than 1.2, y is larger than or equal to 0.6 and smaller than or equal to 0.95, 0 lt, and z is larger than or equal to 0.5. Z < = 0.2, 0lt; a < = 0.2, 0 < b < = 0.02, and values of x, y, z, a, b and c accord with an electrically neutral principle; the positive electrode material has a single crystal morphology, the average size of primary particles is 0.20-1.50 microns, and the c / a ratio in lattice parameters is greater than 4.9360. The positive electrode material is applied to a positive electrode of a lithium ion battery, and shows good first coulombic efficiency and charge-discharge capacity.

Provided is a polishing composition capable of realizing high polishing removal rate on an object to be polished. The polishing composition provided by this invention is used for polishing an object to be polished. The polishing composition includes water, sodium permanganate as an oxidant, and a transition metal salt different from the oxidant. The polishing composition includes the oxidant in an amount of more than 10 wt %. In some preferable embodiments, the transition metal salt is an oxo-transition metal salt, or a multi-nuclear transition metal complex including a transition metal and one or both of oxygen and hydrogen. The polishing composition can be preferably used in polishing an object formed of a high-harness material having a Vickers hardness of 1500 Hv or higher.

A solid electrolyte material and a preparation method therefor, a solid electrolyte, a semi-solid electrolyte, a positive electrode, and a battery. The solid electrolyte material comprises a compound represented by the following general formula: Aa(M1bM2c)Xd, wherein A comprises one or more of Li, Na, K, Cu and Ag, X is halogen, M1 is a main element, M1 is selected from among one of Ga, Y, In, Mg, Sr, Sc, Al, Fe, Zr, Hf, Ta, Nb, W, Mn, Zn, Co, Mo, Sn, Ca, Pb, Ti, Ru and a lanthanide metal element, M2 is a doping element, M2 comprises one or more elements of groups IIA, IIB, IIIA, IIIB, IVA, IVB, VA and VB, b is greater than the molar ratio of any element in M2, 0.5≤a≤5, 0.2≤b≤2, 0.2≤c≤2, d=a*ε1+b*ε2+c*ε3, ε1 is the weighted average valence of A, ε2 is the weighted average valence of M1, and ε3 is the weighted average valence of M2.

The invention provides a Raney nickel electrode preparation method which comprises the following steps: 1, taking nickel powder with the particle size of 15-75 microns, nickel powder with the particle size of 75-150 microns and aluminum powder with the particle size of 15-75 microns, pouring the nickel powder, the nickel powder and the aluminum powder into a mixer, uniformly mixing without segregation phenomenon, and enabling the nickel powder, the nickel powder and the aluminum powder to respectively account for 70%-79%, 1%-10% and 20%; secondly, a plasma spraying technology is adopted, the temperature is regulated and controlled, so that the nickel powder and the aluminum powder with the particle size being 15-75 micrometers reach a molten state, and the nickel powder with the particle size being 75-150 micrometers reach a semi-molten state; spraying to a nickel net, and activating, cleaning and cutting to obtain a Raney nickel electrode; the nickel powder and the aluminum powder with different particle sizes are reasonably matched in the powder formula, the particle flying speed in spraying is properly increased, the spraying temperature is balanced, the powder with different particle sizes reaches different molten states, and therefore the large-particle nickel powder forms a good support in the coating, the bonding strength of the coating is remarkably improved, and the service life of the coating is prolonged. And the catalyst is not easy to fall off in the use process, so that the efficiency and the stability of the water electrolysis hydrogen production equipment are improved.

The invention provides a design method and device of a metallurgical pipeline and a program product, path planning design of the metallurgical pipeline is carried out in a pre-constructed three-dimensional metallurgical factory scene, the three-dimensional metallurgical factory scene is constructed through an imported building structure model, and the three-dimensional metallurgical factory scene comprises arrangement information of equipment and structural members of a building. The design method comprises the following steps: S1, acquiring a starting point position, an end point position, a prohibited area, process parameters and constraint conditions of a metallurgical pipeline input by a user; and S2, according to the starting point position, the terminal point position, the forbidden area, the process parameters and the constraint conditions, performing path search in the three-dimensional metallurgical factory scene through a predetermined path planning algorithm and a pre-trained pipeline layout prediction model to obtain a metallurgical pipeline planning path. By means of the technical scheme, the design efficiency can be improved, the construction cost is reduced, and the building safety is ensured.