3818 results about "Manufactured material" patented technology

The invention provides a precision injection mold accessory production quality traceability management method and system, and relates to the technical field of intelligent manufacturing, and the method comprises the steps: collecting material, process, equipment and environment data in real time through a distributed sensor; fusing multi-source data based on dynamic material characteristic parameters and process stability indexes, and quantifying melt flow and process fluctuation characteristics; constructing a mixed kernel function anomaly detection model to identify quality deviation; establishing a cross-process association map to reveal the space-time relationship among the raw materials, the process and the finished product; generating a three-dimensional traceability identifier containing the material hash, the process compression code and the block chain address; a block chain enhanced database is adopted to realize tamper-proof storage; and generating a visual traceability report through reverse analysis. Through dynamic modeling, cross-process association and block chain technologies, the problems of data isolation, detection lag and low traceability credibility in a traditional method are solved, the quality traceability efficiency and precision are remarkably improved, and precise injection molding full life cycle management is supported.

The invention relates to the technical field of process optimization, and discloses an optimization method and system for a graphite sagger compression molding process. The method comprises the following steps: determining and analyzing particle size distribution, specific surface area, porosity and viscosity-temperature characteristics of graphite powder and a binder to obtain raw material characteristic parameter data; modeling is conducted on the migration behavior of the binder and the deformation characteristic of the graphite powder in the pressing process, a material rheological model is obtained, meanwhile, a multi-point pressure sensor system is arranged on the surface of a pressing mold, and target pressure data are collected; constructing a pressure distribution feature vector and a material flow state prediction result; performing adaptive adjustment on the initial pressing parameters to obtain a segmented pressure curve and a local pressure compensation strategy; and performing multi-objective optimization on the graphite sagger pressing path to obtain an optimal pressing process parameter combination. The method is combined with material flow state prediction, accurate control over the pressing process is achieved, and the intelligent level of the graphite sagger pressing forming technology is improved.

To provide a seat pad capable of appropriately integrally molding a flow path lid and a duct with a pad body while suppressing leakage of a foaming raw material and to provide a mold for the seat pad.SOLUTION: The seat pad includes a pad body having a recessed ventilation passage 14, a planar duct 30 forming an inner peripheral wall of the ventilation passage 14, and a planar flow passage lid 20 covering the ventilation passage 14. The duct 30 and the flow passage lid 20 are molded in a predetermined shape in advance, and are foam-molded integrally with the pad main body. The flow passage lid 20 is set on a back surface side forming surface 5a in an overlapped state, and has a lid bending part 24 bent to the sheet surface side so as to form a recess capable of receiving a bank part 5b projecting from the back surface side forming surface 5a in its peripheral edge part 23. The duct 30 has a seat surface part 34 extending along a region deviated from the ventilation passage 14. The seat surface part 34 is applied to the projecting tip of the lid bent part 24 so as to form a first gap S1 into which the foaming material flows to the flow passage lid 20.SELECTED DRAWING: Figure 12

The invention discloses a preparation method of a medical titanium-zirconium alloy bar wire. The preparation method comprises the processes of ingot casting, forging, quenching, hot rolling, quenching, cold rolling, recrystallization annealing, severe plastic deformation, drawing, straightening, annealing and surface treatment. The microstructure of the alloy is regulated and controlled by introducing high-density defects into the material through severe plastic deformation and combining quenching heat treatment, preparation of the titanium-zirconium alloy with high strength and plasticity and good fracture toughness is achieved, and equiaxial ultra-fine grain titanium-zirconium alloy bars and wires with the diameter ranging from 1 mm to 8 mm and the length larger than 600 mm can be produced in batches. High strength and high fatigue strength can be obtained, and the requirements of dental medical instruments for raw materials are met.

The invention discloses an intelligent reverse scheduling optimization system and method for the traditional manufacturing industry. The system comprises a data collection module, a work order generation module, a resource verification module, a scheduling optimization module and a monitoring adjustment module. The data collection module is used for collecting order information and processing the order information to obtain a to-be-produced work order list; the work order generation module optimizes the equipment task based on the to-be-produced work order list to generate a work order; the resource verification module is used for checking whether the equipment and the raw materials meet the requirements of the work order and generating constraint conditions; the scheduling optimization module performs priority ranking on the work orders based on constraint conditions by using a reverse production scheduling algorithm to generate an optimized production plan; the monitoring and adjusting module is used for monitoring the production process and dynamically adjusting the production plan according to the actual situation. By optimizing the production process, the efficiency can be improved and the cost can be reduced in the traditional manufacturing industry, so that the overall competitiveness is enhanced.

Provided in the present invention are an optical aluminum alloy and a preparation method therefor. The preparation method comprises: step S1, preparing an aluminum alloy starting ingot from raw materials by using a semi-continuous casting process, the semi-continuous casting process comprising heating and melting, alloying, refining, slagging-off, standing, degassing, filtering and semi-continuous water-cooled casting; step S2, performing homogenization, end cropping and skinning on the aluminum alloy starting ingot, so as to obtain a surface-treated alloy raw material; step S3, carrying out rapid solidification treatment on the surface-treated alloy raw material by means of a melt spinning method to obtain a rapidly solidified alloy strip; step S4, subjecting the rapidly solidified alloy strip to crushing treatment, and then performing encapsulation and cold pressing to obtain a cold-pressed billet; step S5, subjecting the cold-pressed billet to one to two passes of a hot extrusion process to prepare a bar stock; and step S6, carrying out solution treatment and aging treatment on the bar stock to obtain a finished aluminum alloy material. The method can refine the grain structure, and the prepared material can be machined into highly flat surfaces.

The invention discloses a security camera lens production process dynamic multi-parameter process monitoring method, and relates to the technical field of multi-parameter process monitoring. The method comprises the following steps: collecting process parameters and waviness characteristic data; collecting optical characteristics and physical response data of security camera lens raw materials; discretizing the data, and generating raw material standard data according to material types and performance; collecting real-time polishing data, and calculating to obtain a polishing deviation factor vector; calculating a weight through an entropy weight method to obtain a polishing alarm correction index, giving an alarm and adjusting polishing parameters when the polishing alarm correction index exceeds a threshold value, and obtaining corrected geometric feature data; the method comprises the following steps: collecting data in a coating stage, obtaining coating material response and processing environment data through a two-dimensional feature extraction method, and respectively calculating a material response deviation index and a processing environment disturbance index; and combining the two indexes to obtain the comprehensive deviation index of the coating process. According to the comprehensive deviation index of the coating process, the production process of the security camera lens is monitored in real time.

The invention discloses a multi-warehouse management warehouse-in and warehouse-out method and a digital warehouse management system, and the digital warehouse management system carries out the data interaction with an enterprise resource management system, a manufacturing execution system, a warehouse control system and a robot control system through an API interface. The method comprises the steps of monitoring data sent by a manufacturing execution system and a handheld terminal in real time, if a raw material warehousing order number sent by the handheld terminal is monitored, executing a raw material warehousing process, if a raw material ex-warehouse request of the manufacturing execution system is monitored, executing a raw material ex-warehouse process, and if a semi-finished product warehousing request of the manufacturing execution system is monitored, executing a semi-finished product ex-warehouse process; and if a semi-finished product warehouse-out request of the manufacturing execution system is monitored, executing a semi-finished product warehouse-in process, if a semi-finished product warehouse-out request of the manufacturing execution system is monitored, executing a semi-finished product warehouse-out process, and if carton data of finished product warehouse-in of the manufacturing execution system is monitored, executing a finished product warehouse-in process. According to the invention, a plane library, a three-dimensional library and a line-edge library are all included in a management range, and meanwhile, the dependence on manpower is reduced.

The invention relates to the technical field of control systems, in particular to a production process optimization control system and method for a heat shrink film. The method comprises the following steps: obtaining resin characteristic parameters of a heat shrink film raw material, and constructing an initial digital twinborn model by using the resin characteristic parameters; acquiring real-time production data, and updating the initial digital twinborn model by using the real-time production data to obtain a complete digital twinborn model; and performing melt ultrasonic-assisted homogenization and two-way stretching process simulation based on the digital twin model, and performing optimization analysis by using a simulation result to generate optimized process parameters. By constructing and updating the digital twinborn model, the melt uniformity and process parameter optimization are accurately controlled, the quality consistency and stability of the thermal shrinkage film are improved, and the product is ensured to meet the mechanical, optical and thermal shrinkage performance requirements.

The invention relates to the technical field of aluminum material forging and pressing, in particular to an aluminum material forging and pressing forming device which comprises a forging and pressing base, a forging and pressing frame is fixedly connected to the top of the forging and pressing base, and a longitudinal adjusting mechanism is fixedly connected to the top of the forging and pressing base; the top of the forging base is fixedly connected with a forging die; the top of the inner wall of the forging frame is fixedly connected with a forging plate; a forging aluminum material is arranged on the inner wall of the forging die; in view of the fact that the aluminum material cannot be accurately placed in the dead center of a die during forging and pressing, if the aluminum material is relatively close to the edge of the die when being placed, the aluminum material cannot completely fill the die, the quality of a produced product is influenced, and in order to avoid the situation that the aluminum material cannot be filled into the die, the aluminum material usually needs to have enough redundancy, so that the production cost is reduced. Due to the fact that whether the aluminum material is located in the center of a die or not cannot be accurately judged, the aluminum material with large redundancy is used during forging and pressing each time, and a large number of raw materials are wasted when the aluminum material is located in the center of the die.

The invention provides a composite material with excellent heat insulation performance, which relates to the field of fireproof heat insulation structures, and sequentially comprises a fireproof layer, a transition layer, a first protection layer, a first heat insulation layer, a second heat insulation layer and a second protection layer, wherein the fireproof layer adopts an intumescent fireproof coating, the transition layer adopts a primer, the first protection layer and the second protection layer adopt metal titanium foils, the first heat insulation layer adopts an aerogel felt, the second heat insulation layer adopts a phase change material, the phase change material is formed by compounding a phase change raw material and a base material, and the phase change raw material is microcapsules. A packaging material of the microcapsule is a mixture of melamine, formaldehyde and urea, and a phase change inner core of the microcapsule is paraffin; the base material is epoxy resin. The composite material not only has the characteristics of excellent fireproof and heat-insulating performance, thin thickness, light weight, good long-term stability and the like, but also has the advantages of simple structure, convenience in installation, wide application range and the like.

The invention discloses a laser cladding preparation method for improving the wear resistance of a cladding layer by doping tungsten carbide. According to the method, cladding process parameters are preliminarily obtained based on finite element heat flow analogue simulation, cladding layer preparation is carried out, cladding quality characterization is carried out to obtain the optimal cladding process parameters, and finally the cladding layer with the wear-resistant characteristic is obtained. The method comprises the following steps: firstly, constructing a heat flow coupling three-dimensional model, carrying out grid division, establishing a heat source model, defining thermophysical parameters of tungsten carbide (10-15%) nickel alloy composite powder and a matrix, and determining simulated boundary conditions; setting a multi-factor process parameter combination to carry out numerical simulation calculation, and determining laser processing process parameters of laser power, scanning speed and light spot diameter; preparing a cladding layer on the surface of the nodular cast iron by using tungsten carbide (10-15%) nickel alloy composite powder through a laser cladding method; and carrying out microscopic morphology and microhardness experiments to carry out quality analysis verification on the cladding layer, determining the optimal process parameters of laser power, scanning speed and light spot diameter when the cladding layer has no obvious defect morphology and the hardness is higher than that of the raw material, and obtaining the laser cladding preparation method for improving the wear resistance of the cladding layer by doping tungsten carbide. The invention provides a new research method and a high-quality preparation approach for improving the wear resistance of the cladding layer by tungsten carbide, and can be widely applied to the fields of strengthening and repairing mining machinery, aerospace parts and the like.

The invention provides an automatic degumming device and degumming method for circuit board production, and the device comprises a conveying assembly which comprises a supporting frame, a side plate, a sliding groove, a sliding block, a mounting hole, and a chain. Through the elaborate design of the conveying assembly, the distance between the U-shaped frames is accurately adjusted through the synchronous electric cylinder so as to adapt to circuit boards with different widths, the stable and automatic conveying of the circuit boards among all degumming procedures is achieved in cooperation with the cooperative operation of the conveying motor, the driving wheel, the driven wheel and the chain, the degumming efficiency is greatly improved, the large-scale production requirement is met, and the production cost is reduced. Compared with a traditional manual or simple mechanical glue removing mode, the glue removing time of a single circuit board is greatly shortened, and the overall productivity of a production line is improved; the liquid collecting hopper and the filtering frame are arranged above the sol agent storage tank and the water storage tank, so that a sol agent and cleaning water which are scattered in the glue removing process can be collected and filtered, cyclic utilization of the sol agent and water resources is achieved, consumption of raw materials is reduced, and the production cost is reduced.

The invention provides a thermal battery pole piece coating assembly line based on modular design, and relates to the technical field of thermal electrode piece processing control, and multiple optimization algorithms are applied on the thermal electrode piece coating assembly line, so that the assembly line can be used for coating thermal electrode pieces according to different production requirements and conditions. Strategies in the aspects of module combination, production scheduling, energy management, material distribution and the like are automatically adjusted, intelligent production decision making is achieved, manual intervention is reduced, the automation level and accuracy of production are improved, different modules can be flexibly combined on an assembly line through modular design, the assembly line is suitable for coating production of thermal battery pole pieces of different specifications and types, and the production efficiency is improved. Meanwhile, the optimization algorithm can be adjusted according to different production tasks, so that the assembly line has higher adaptability and universality, can quickly respond to the change of market requirements, can accurately control the coating process and optimize the material delivery path, reduces the waste of raw materials and the loss of resources, improves the utilization efficiency of the resources, and reduces the production cost. And sustainable utilization of resources is realized.

The invention belongs to the technical field of production control, and discloses a rare earth permanent magnet material production low-delay control system based on a digital twinning technology. Comprising the steps of obtaining production sensing data of a rare earth permanent magnet material production line; constructing a digital twinborn model of the production process of the rare earth permanent magnetic material by using the production sensing data; performing simulation by using a digital twinborn model to obtain a change trend of the key production parameters; calculating a sensitivity coefficient matrix of each key production parameter according to the change trend of the key production parameters; constructing a multi-objective optimization function based on the sensitivity coefficient matrix, and solving the multi-objective optimization function by using an improved particle swarm algorithm to obtain an optimal control parameter combination; the production efficiency and the product quality are improved, the energy consumption and the raw material loss are reduced, the resource utilization rate is improved, and green production is promoted.

The present invention discloses a fully automatic laser processing production line for unwinding and cutting aluminum veneer, comprising a support seat, on which are arranged from left to right an unwinder, a leveler, a shearing machine, a conveyor belt, an automatic material storage, a pre-marking mechanism, a laser cutting device and a sorting and conveying device; an aluminum material roll is installed on the unwinder, and the aluminum material roll is supported by a roll support device arranged on the left side of the unwinder; a material guiding platform is arranged on the right side of the unwinder between the left side of the leveler. This fully automatic laser processing production line for unwinding and cutting aluminum veneer can realize full automation from raw materials to finished parts, and can be used for various coil raw materials. By using laser cutting, the system can automatically and continuously cut out various workpieces, realize better utilization of various raw materials, achieve minimum material consumption, make workpiece costs lower, improve production capacity, greatly improve production efficiency, reduce time and labor costs, and make operation and management more convenient.

The invention discloses a rapid development method and system for a high-performance nodular cast iron material based on electronic metallurgy, and relates to the technical field of electronic metallurgy, and the rapid development method comprises the steps that a high-performance nodular cast iron raw material is smelted through multi-stage electron beams, and uniform molten metal is obtained; monitoring the chemical components and temperature change of the molten metal in real time, and dynamically adjusting the addition of the spheroidizing agent; the pouring speed and pressure of the molten metal subjected to spheroidizing treatment are intelligently controlled, and casting pouring is conducted; the internal stress change of the casting is monitored in real time through an embedded stress sensor, and the casting cooling process is adjusted; the cooled casting is subjected to surface treatment, heat treatment and machining; component detection and performance testing are conducted on the casting obtained after treatment and machining are completed; through the multi-stage electron beam melting technology, accurate control over the temperature and chemical components of the molten metal is achieved, and the uniformity and stability of the molten metal are ensured.

The invention discloses a neodymium iron boron magnet with a protective film and a manufacturing method thereof, and the manufacturing method specifically comprises the following steps: S1, pretreating a plurality of raw materials to ensure the purity and cleanliness of the raw materials; s2, the pretreated materials are mixed in proportion and smelted to prepare uniform neodymium-iron-boron alloy; s3, the smelted alloy is crushed, and particle powder meeting the requirement is prepared through jet mill equipment; s4, the powder is put into a mold, forming orientation is conducted through a magnetic field press, and the maximum residual magnetism is obtained; s5, performing high-temperature sintering on the molded magnet to improve the density and the magnetic performance of the molded magnet; s6, the sintered magnet is machined, and the needed size and shape are obtained; s7, carrying out pretreatment on the surface of the magnet, and carrying out aftertreatment after chemical nickel plating to ensure the quality of a plating layer; according to the method, the surface of the neodymium-iron-boron magnet is coated with a high-phosphorus chemical nickel layer in a plating mode, the magnet can be effectively prevented from being corroded by the external environment, and the service life of the magnet is prolonged.

The invention relates to the technical field of glass production, and provides a building glass production method, system and equipment, and the method comprises the steps: obtaining historical production information data sets of a plurality of different batches of building glass of the same type; constructing a multi-target dynamic loss function, and constructing a neural network model based on the loss function; training the neural network model according to the historical production information data set; and obtaining basic information of building glass to be produced, inputting the basic information into the neural network model to obtain optimal process control parameters, and producing the building glass according to the optimal process control parameters. According to the method, the robustness of the neural network model is improved, so that the optimal process control parameters matched with the current raw material information and the target performance information of the to-be-produced building glass are obtained, and the intelligent degree and the production benefits are improved.

The invention relates to the technical field of process parameter adjustment, in particular to an intelligent maintenance and management platform for process data of an intelligent manufacturing production line. The platform comprises a raw material attribute data processing module used for acquiring an attribute feature vector of each sample in history, one raw material being a sample, and further acquiring a material attribute difference; the process deviation analysis module is used for acquiring a process deviation value of the two processed samples; the process parameter analysis module is used for acquiring the process parameter difference weight of one process parameter of the two samples, and then establishing a scatter diagram; the conjoint analysis module is used for analyzing the scatter diagram to obtain the quality influence stability of one technological parameter and further obtain the influence degree of the technological parameter; and the process parameter adjusting module is used for updating the reference value according to the influence weight and the reference value of each process parameter of the current sample to obtain the optimal process parameter combination of the current sample. According to the invention, the quality of a processed product can be improved.

The invention relates to the technical field of precision casting, and discloses a high-precision control method for stainless steel castings, which comprises the following steps: preparing raw materials, recording component characteristics of the raw materials, designing a formula proportion of the raw materials, carrying out pouring process design, and setting a parameter control system in each link of pouring, according to the shape of the needed stainless steel casting, mold design and manufacturing and mold quality control are carried out, grinding tool design parameters are recorded, a stainless steel casting solidification process simulation model is established according to raw material component characteristics, a raw material formula proportion, a designed pouring process and the mold design parameters, and the casting solidification process is simulated in the model. The method comprises the following steps: predicting a defect area in a casting production process, carrying out advanced prevention and optimization treatment on the defect area according to the predicted defect area in the casting production process, strengthening a refining degassing operation in a casting process, further carrying out a metal solution purification step after refining degassing, and demolding the casting, and the mold is cleaned, checked and maintained in time.

The utility model provides a pottery clay 3D printing device capable of mixing and conveying raw materials in a fixed proportion, which comprises a rack, a 3D printing device, a 3D printing device and a 3D printing device, wherein the rack comprises an accommodating chamber and a printing chamber which are arranged in an up-down structure; the raw material conveying mechanism comprises a plurality of conveying assemblies arranged above the rack, and the conveying assemblies are used for conveying different raw materials; the mixing and extruding mechanism comprises an extruding assembly which can be transversely and movably arranged in the containing cavity and communicates with the conveying assembly, the extruding assembly comprises a material mixing bin body, a mixing cavity is formed in the material mixing bin body and communicates with the raw material conveying assembly, a stirring assembly is arranged in the mixing cavity, and an extruding head is connected to the lower portion of the material mixing bin body; the printing platform is arranged in the printing cavity in a longitudinal sliding mode and used for bearing 3D printing products, raw materials are directly printed in a printer after being mixed, efficiency can be greatly improved, and the problem that ceramic clay materials are possibly poor in uniformity and stability due to long-term placement or in the transferring process can be solved.

The invention discloses a fibroin-based composite aerogel material for adsorbing heavy metals as well as a preparation method and application of the fibroin-based composite aerogel material, and belongs to the field of high-performance adsorption materials. The preparation method specifically comprises the following steps: (1) taking silk as a raw material, degumming to obtain degummed silk, fully mixing the degummed silk with a ternary system mixed solution, centrifuging, and dialyzing to obtain a silk fibroin solution; (2) blending the nanoscale adsorbent and the silk fibroin solution according to a certain mass fraction; and (3) carrying out high-speed dispersion and freeze drying on the blended solution in the step (2) to obtain the fibroin-based composite aerogel material. According to the method, the waste silk is used as the raw material, so that the environmental pollution is reduced, the production cost is reduced, and the economical efficiency of the material is improved. The fibroin-based composite aerogel material prepared by the method has high adsorption rate and adsorption capacity in the aspect of heavy metal adsorption, and has important practical significance and application value for solving the problem that heavy metal in wastewater exceeds the standard in the printing and dyeing industry.

The invention discloses a 1500MPa-grade titanium alloy plate and a preparation method thereof, and belongs to the technical field of titanium alloys. The 1500MPa-grade titanium alloy plate disclosed by the invention is prepared from the following components in percentage by mass: 3.0 to 5.0 percent of Al, 4.0 to 6.0 percent of Mo, 3.0 to 5.0 percent of V, 1.0 to 3.0 percent of Cr, 1.0 to 3.0 percent of Nb, 2.0 to 5.0 percent of Zr, 0.5 to 2.0 percent of Fe and the balance of Ti and inevitable impurities. The preparation method comprises the following steps that smelting raw materials are selected according to the components of the titanium alloy plate, then weighing, burdening and smelting are conducted, the smelting temperature is controlled to be 2300-2700 DEG C, an alloy ingot is obtained, the alloy ingot is heated and then subjected to rolling deformation, the titanium alloy plate is obtained, finally, the titanium alloy plate is placed in a heating furnace to be subjected to solution treatment and aging treatment, and the titanium alloy plate is obtained after air cooling. The strength of the prepared alloy plate can reach 1500 MPa or above, meanwhile, the ductility is kept at 5% or above, and the alloy plate has very good application prospects.

The invention relates to the technical field of electric power conductive parts, in particular to a busbar using a conductive extrusion molding material as a shield, which comprises the following steps: S1, selecting a high-voltage insulating conductive material; s2, raw material pretreatment quality detection; s3, carrying out extrusion molding on the high-voltage insulating layer; s4, extruding and coating the conductive shielding layer; s5, carrying out secondary extrusion molding on the double-layer insulation structure; s6, processing the cutting edge of the busbar; s7, bending and forming the busbar; s8, peeling and punching the busbar; and S9, packaging and quality assurance testing. The 70% high-voltage insulating layer (crosslinked polyethylene) is used for providing the excellent dielectric strength of at least 35 kV / mm, electric shock and short circuit accidents are effectively prevented, safe operation of a power system is ensured, the 30% high-purity copper or aluminum alloy conductive shielding layer achieves the electromagnetic shielding effectiveness larger than or equal to 80 dB, electromagnetic interference (EMI) is remarkably inhibited, and the service life of the cable is prolonged. The influence of electromagnetic noise on surrounding equipment is reduced, and the stability and reliability of the system are improved.

The invention relates to the technical field of supply production management, in particular to a supply production management system and method for a silicon-carbon negative electrode material for a battery, and the method comprises the steps: constructing a performance incidence matrix based on the performance of raw materials and the performance of a silicon-carbon negative electrode material finished product, calculating a supplier capability index, making a purchase plan, and carrying out the stock grading management of the raw materials. Constructing a graded safe inventory model; adjusting a production sequence according to the order priority index, implementing finished product inventory level-to-level management, and setting a target inventory turnover rate; performing performance detection on the raw materials in the production process, calculating the comprehensive quality score of the raw materials, and adjusting the grading safety inventory model; calculating a finished product comprehensive performance score of the finished product batch, and carrying out abnormity identification and warehousing; and calculating the comprehensive association strength between the finished product batches to construct a traceability chain, calculating the contribution degree of the raw material performance to the performance deviation of the abnormal finished product batches, and optimizing the supply production management process. And a more scientific and effective supply production management system is established.

The current collector comprises a bipolar plate, the bipolar plate comprises a disc and a circular ring, the circular ring surrounds the periphery of the disc, one or more alkali liquor inlets are formed in the first end of the circular ring, and one or more alkali liquor outlets are formed in the second end of the circular ring; the flow field material is arranged on the disc, and the flow field material comprises a plurality of expansion metal grid plates which are sequentially arranged at intervals. The manufacturing method comprises the steps that the diameter of a disc is obtained, and the length and the width of each expansion metal grid plate are determined according to the diameter of the disc, the preset number of the expansion metal grid plates and the preset distance between the adjacent expansion metal grid plates; according to the length and the width of each expansion metal grid plate and the edge contour of the corresponding disc, the raw material is cut to obtain a preset number of expansion metal grid plates; and according to the preset position of each expansion metal grid plate on the disc, the expansion metal grid plates are welded to the disc. According to the invention, the uniformity of the alkali liquor distributed on the bipolar plate can be improved.

The invention relates to an additive repairing method for a special-shaped curved surface of a large-size thin-wall component, belongs to the technical field of metal additive manufacturing, and solves the problems of low profile precision, poor aerodynamic layout and difficulty in meeting high-speed flight due to local deformation of the special-shaped curved surface of the large-size thin-wall SLM component. The invention discloses a large-size ultrathin component special-shaped curved surface additive repairing method. The method comprises the following steps that S1, a component profile is scanned and compared with a standard model; s2, polishing the surface of a product repair area; s3, repairing path planning; s4, preparing equipment and raw materials; s5, component laser additive repairing is conducted; s6, detecting a cladding layer; s7, heat treatment of the component; and S8, product detection. And on-demand repair and high-precision shape control of the SLM component in the complex geometrical shape are achieved. Local concave low-stress repair of the large-size thin-wall component is achieved, the method is suitable for large-scale engineering repair manufacturing of the component, and the problem of secondary deformation generated in the repair process of surfacing, traditional laser cladding and other technological methods is effectively solved.

The invention provides a discharging mechanism of laser cutting equipment, and belongs to the technical field of laser cutting equipment.The discharging mechanism comprises a cutting table, a vibration assembly and a cutting assembly, the vibration assembly and the cutting assembly are arranged on the cutting table, a discharging groove and a scrap groove are formed in the outer walls of the two sides of the cutting table respectively, and a sieve plate and a cleaning plate are installed on the inner wall of the cutting table respectively; a conveying assembly is installed on the cutting table and comprises a lug plate, a motor, a conveying wheel, a transmission belt and a nail plate. The conveying belt is matched with the nail plate to directly convey and discharge workpieces after cutting the workpieces, and meanwhile, the conveying belt is matched with the sieve plate and the cleaning plate to separately discharge and collect the workpieces and chippings generated in the cutting process; in this way, the situation that the overall quality is affected due to the fact that the surfaces of the workpieces are scratched by friction and collision in the follow-up transferring process due to mixed collection of the chippings and the workpieces is avoided, meanwhile, the follow-up chippings are separated and recycled in a centralized mode, the chippings can be reused through smelting in the follow-up process, and therefore the cost of raw materials is reduced.

Provided are a lid, a container with the lid, and a combination of the lid and the container, which can prevent contents from leaking from the container with the lid while using a paper-based raw material, and can improve the recyclability. The lid is configured so as to be attachable to a container having an opening and an edge forming the opening, and has a top surface portion that covers the opening when attached to the container. The top surface portion has a paper-based substrate comprising a paper-based material, a penetration portion penetrating the paper-based substrate, a gas-liquid separation material capable of separating a gas in a gas phase and at least a portion of a liquid in the liquid phase from a mixed fluid having the gas phase and the liquid phase, and a thermoplastic coating agent. The gas-liquid separation material has a paper-based air-permeable sheet that includes long fibers and has air permeability, a liquid-repellent agent that imparts liquid repellency to the paper-based air-permeable sheet is disposed on at least one surface of the paper-based air-permeable sheet, and the gas-liquid separation material is disposed so as to cover at least a portion of the penetration portion in a plan view of the paper-based base material, and the gas-liquid separation material is disposed so as to cover at least a portion of the penetration portion in a plan view of the paper-based base material. And the coating agent is used for bonding the gas-liquid separation material and the paper base material.