1579 results about "Laboratory oven" patented technology

The invention provides a real-time monitoring control method and system for VOCs release of printing equipment. Real-time parameters in the printing process are monitored in real time, and a VOCs emission prediction value corresponding to the current printing task is obtained according to the real-time parameters in combination with the VOCs emission prediction model; the overprinting error of the current printing process is obtained according to the overprinting error detection strategy in combination with the reaction temperature and the treatment air volume of the current drying oven; the VOCs emission predicted value and the overprinting error are combined with a VOCs emission-printing quality double-target optimization function to obtain the air volume and temperature of a drying oven matched with the current printing quality and VOCs release; and regulating and controlling the air speed and the temperature of the drying oven of the printing equipment according to the air volume and the temperature of the drying oven matched with the current printing quality and the VOCs release. The system comprises a module corresponding to the method.

The invention discloses a drying oven temperature control system and method, the system is provided with a temperature distribution detection module, a neural network training prediction module and a control optimization feedback module, and the method comprises the steps: obtaining tunnel drying oven temperature distribution data and related influence parameters, and carrying out the preprocessing; training an LSTM (Long Short Term Memory) network by utilizing the preprocessed temperature distribution data and related influence parameters, and predicting PID (Proportion Integration Differentiation) parameters in a temperature dynamic control process; the LSTM neural network model is integrated into an edge calculation unit of the tunnel oven temperature control system, and real-time online PID parameter prediction feedback is carried out; carrying out parameter setting on the predicted and output PID parameters, optimizing the parameters of a PID controller by adopting a particle swarm algorithm, and outputting an optimal PID parameter combination; the optimal PID parameter combination is applied to an actual tunnel oven temperature control system, the temperature uniformity of dynamic change disturbance in the system is improved, the temperature control precision is improved, and the overall response time is shortened.

The utility model discloses a perforated flow guide air plate for wet spunlace drying, which comprises an upper-layer flow guide air plate and a lower-layer flow guide air plate, the upper-layer flow guide air plate and the lower-layer flow guide air plate are both mounted in a drying oven, the upper-layer flow guide air plate is mounted at the upper part of the drying oven, and the lower-layer flow guide air plate is mounted at the lower part of the drying oven. And the lower-layer flow guide air plate is mounted at the lower part of the drying oven. Due to the unique penetrating type design, hot air can directly act on the surfaces of materials, the drying time is greatly shortened, and meanwhile energy consumption is reduced.

A test system has ovens configured to hold devices under test (DUTs), DUT switches, each connected to the DUTs in an oven, splitters, each splitter connected to a DUT switch, an instrument switch connected to one output of each splitter, the other output of each splitter connected to a test instrument, and one or more processors to control the instrument switch to select one of the DUT switches connected to an oven, control the selected DUT switch to connect each DUT in the oven to a channel of the test and measurement instrument, use machine learning to tune the DUT to a set of parameters until the DUT passes or fails, repeat the connecting, tuning, and testing of each DUT until all DUTs in an oven have been tested, and repeat the selection and control of the DUT switches until each DUT in each oven has been tuned and tested.

The invention discloses a suspension type oven flow field optimization method based on CFD dynamic simulation. The invention relates to the technical field of data processing, and the method comprises the steps: constructing a three-dimensional model of a suspension type oven flow field, and splitting the three-dimensional model into a plurality of geometric subdomains according to functions; dividing a corresponding grid sub-domain based on each geometric sub-domain; the grid subarea at least comprises a suspension area; judging whether the quality of the grid subdomains reaches the standard or not, and if not, optimizing division of the grid subdomains; if yes, setting a boundary condition and a physical model for the grid sub-domain; performing flow field simulation analysis on the grid sub-domain to obtain simulation data; comparing and analyzing the simulation data and the multi-dimensional target data to judge whether the model parameters of the oven flow field need to be corrected or not; whether the dynamic key indexes of the oven flow field reach the standard or not is monitored, and if the dynamic key indexes all reach the standard, optimization parameters of the oven flow field are output; and if any dynamic key index does not reach the standard, correcting the model parameters of the oven flow field, thereby improving the suspension stability of the material and realizing the optimization of the oven flow field.

The invention provides automatic heat treatment equipment for an automobile brake pad, and belongs to the technical field of brake pad machining. Comprising a base, a support is fixedly connected to the top of the base, a control center is fixedly connected to the end of the support, a feeding table is fixedly connected to the right end of the surface of the base, a clamping jaw is slidably connected to the top of the support, a preheating bin is fixedly connected to one side of the feeding table, and a drying oven is fixedly connected to one end of the preheating bin; the interior of the drying oven is rotationally connected with a material placing frame, and the top of the drying oven is fixedly connected with an air blower. By arranging the feeding position correcting assembly and the scraper containing assembly, position correcting, carding and straightening are carried out in the brake pad conveying process, the conveying process is accelerated, the blocking risk in the automatic treatment process is reduced, chippings and impurities on the surface of the brake pad are scraped, and the production efficiency is improved. Local hot spots formed on the surface of the brake pad or heat conduction hindering during later baking are reduced, and the heat treatment quality is improved.

The utility model discloses a drying tunnel curing system for composite paper, which is used for jet drying of the composite paper in a drying tunnel and comprises at least four drying ovens sequentially connected along a production line, and all the drying ovens form the drying tunnel for jet drying of the composite paper. An air inlet and an air outlet are respectively formed in two sides of the upper part of each drying oven; a plurality of nozzles for jetting and impacting hot air on the composite paper coating are uniformly arranged in the upper space of the drying oven between the air inlet and the air outlet; an air outlet is further formed in the lower space of the drying oven; a fan, a heating box and a heat exchanger are arranged beside each drying oven, an air outlet of each drying oven returns air to the heating box through an air return pipe, the fan is connected to one side of the heating box, and the output end of the fan is communicated with the air inlet of the drying oven through an air inlet pipe; the other side of the heating box communicates with a heat exchanger through a pipeline, and the heat exchanger is connected with a fresh air inlet pipe, a first air exhaust connecting pipe communicating with an air exhaust opening of the drying box and a second air exhaust connecting pipe for sending out air in the first air exhaust connecting pipe.

The invention provides a multi-physical field coupled roasted eel cooking degree prediction and real-time temperature control system and method. The system comprises a tunnel type oven, an image acquisition module, an image synchronization and fusion module, a carbonization identification module, a temperature correction module, a cooking degree prediction module, a partition temperature control adjustment module, a conveyor belt speed control module and a system controller. The system fuses hot air convection and infrared radiation to form a coupled thermal field, obtains multi-mode information of a fish body by combining visible light and infrared imaging, realizes thermal-optical field collaborative perception through image fusion, carbonization identification and temperature correction, constructs a deep cooking degree prediction model based on multi-source features, drives thermal control and dynamic adjustment of a conveying strategy, and realizes deep cooking degree prediction. The accurate evaluation of the cooked degree of the roasted eel and the active intervention of the carbonization trend are realized, and the roasting uniformity and the product consistency are obviously improved.

The invention discloses a multi-section baking method for a roll core, which comprises the following steps: S1, putting a pole piece into a baking oven, and preheating the baking oven; s2, sectional type vacuum drying, wherein three sub-stages are included, and the vacuum degree of a drying oven in each sub-stage is decreased progressively; s3, vacuum circulation drying is conducted, specifically, operation is conducted for at least 10 times or below in a circulation mode, the oven is vacuumized to 180-200 Pa, and vacuum drying is kept for 30-60 min; introducing inert gas into the oven to adjust the pressure to 90000Pa, and drying for at least 30 minutes. According to the method, multiple circulation stages of vacuum drying are split, incremental negative pressure is adopted in the first three cycles, most of water in the pole piece can be effectively brought out, finally, the pole piece is kept at a proper negative pressure level for drying, and the interface yield of the pole piece is guaranteed.

The invention discloses an intelligent temperature and humidity control method applied to a process oven. The method comprises the following steps: analyzing future temperature and humidity predicted values in real time by adopting a dynamic prediction module; and the predicted value is simultaneously input to a dew point risk avoidance module and an MPC optimization module. The current dew point temperature is calculated through the dew point risk avoiding module, dew point risk judgment is conducted in combination with the material surface temperature monitored by the infrared sensor, and when it is detected that the surface temperature is close to a dew point threshold value, an instruction is sent to the gradient air supply control module. And the MPC optimization module performs rolling optimization on the air supply parameters through an objective function based on the predicted value. Therefore, the fuzzy-PID module is helped to dynamically adjust PID parameters, and accurate execution signals are output to a heater and a fan. The gradient air supply control module integrates the dew point risk instruction and the PID control signal, the oven is divided into a plurality of independent areas to execute differential regulation and control finally, the control precision of intelligent regulation of the operation state of the process oven is increased, and energy consumption is remarkably reduced.

The invention discloses a high-temperature-resistant sealing agent and a preparation method thereof, and relates to the technical field of chemical assistants, and the high-temperature-resistant sealing agent is characterized by comprising the following components in parts by weight: 25-32 parts of acidic nano silica sol, 56-65 parts of a cosolvent, 8-12 parts of a hydrolysis inhibitor, 9-12 parts of a silane coupling agent A, 5.5-6.8 parts of a silane coupling agent B and 0.01-0.015 part of a wetting agent. The high-temperature-resistant sealing agent has the effects that the high-temperature-resistant sealing agent is not yellowed, decomposed and dropped after being baked for 2 hours in an oven at the temperature of 250 DEG C, and is not corroded after being corroded by salt mist for 1000 hours.

The utility model discloses a drying oven capable of reducing vibration, which comprises an oven body, at least one fan and at least one group of heat generators, and is characterized in that the oven body is provided with a feeding end and a discharging end; a mounting cavity is formed between the feeding end and the discharging end of the box body, a group of air outlets communicated with the mounting cavity are further formed between the feeding end and the discharging end of the box body, and an air return channel separated from the mounting cavity and at least one air return hole communicated with the air return channel are further formed in the box body; the section size of the mounting cavity in the vertical direction is gradually reduced from the position where the fan is mounted to the discharging end in the direction from the feeding end to the discharging end; the fan is arranged in the mounting cavity, close to the feeding end, of the box body, and the air return channel is close to the feeding end and is communicated with an air inlet of the fan; and the heat generator is also arranged in the mounting cavity and is positioned on a flowing path of flowing air formed by the fan.

The method comprises the following steps: preparing an epoxy sample with a bidirectional strain gauge, carrying out multi-stage thermal cycle treatment on the epoxy sample, and recording strain data to determine an optimal treatment parameter combination, namely temperature, heat preservation time, cooling rate and cycle index; carrying out stress reduction treatment on the epoxy composite insulator based on the optimal treatment parameter combination; the device comprises a programmable oven, a strain gauge and an upper computer. The method is easy and convenient to operate and low in cost, through multi-scale collaborative optimization, the residual stress of the current commercial epoxy composite insulating part can be remarkably reduced, the reliability of the epoxy composite insulating part for the ultra / extra-high voltage power equipment is remarkably improved, and the method has wide engineering application prospects.

The utility model relates to the technical field of grinding, in particular to a full-automatic thickness measuring six-axis grinding, cleaning, coating and drying all-in-one machine which comprises a rack, a conveying mechanism, a grinding mechanism, an adjusting mechanism, a drying oven assembly and a cleaning mechanism. According to the utility model, a plurality of procedures such as grinding, cleaning, coating, drying and the like are integrated in one device, so that full automation and continuity of workpiece treatment are realized. And the time and the cost for transferring the workpieces among different devices are greatly reduced, and the overall production efficiency is improved. The cleaning mechanism is located between the grinding mechanism and the drying oven assembly, the surface cleanliness of the workpieces before the workpieces enter the drying oven is guaranteed, the burden of the follow-up cleaning procedure is further reduced, and the overall treatment efficiency is improved. The drying oven assembly not only has a drying function, but also integrates the functions of cleaning and coating release liquid. The workpiece treatment process is simplified, the number of devices and the occupied area are reduced, and meanwhile the treatment quality and consistency are improved.

The invention provides a drying oven with return air provided with a purification assembly and film stretching equipment. The drying oven comprises an oven body, a first air supply assembly, a second air supply assembly, a first blocking structure and a second blocking structure. The first blocking structure and the second blocking structure are arranged in the box body in the front-back direction of the box body and divide the box body into a first air return area, an air outlet area and a second air return area. The first air supply assemblies and the second air supply assemblies are alternately and symmetrically arranged in the front-back direction of the box body. An air inlet of the first air supply assembly is located in the first air return area, an air inlet of the second air supply assembly is located in the second air return area, and air outlets of the first air supply assembly and the second air supply assembly are both located in the air outlet area; a first purification assembly and a second purification assembly are arranged on the first blocking structure and the second blocking structure and used for purifying return air; the design not only can improve the air circulation efficiency, but also can reduce the maintenance difficulty.

The application discloses a preparation method of a flexible super-hydrophobic anti-icing coating and relates to the technical field of super-hydrophobic materials.The preparation method comprises the following steps: preparing nano-silver loaded multi-layer graphene; mixing PVP solution and multi-layer graphene suspension uniformly, adding glucose, stirring uniformly, adding silver-ammonia solution to react when the suspension reaches a set temperature, centrifugally separating after the reaction is completed, obtaining the nano-silver loaded multi-layer graphene product, cleaning by using pure water or ethanol, and drying in an oven for standby; and preparing a flexible super-hydrophobic layer; smearing a mixture of PDMS and a PDMS curing agent on the surface of a glass sheet, uniformly spraying nano-loaded multi-layer graphene powder to the surface of the mixture of uncured PDMS and the PDMS curing agent by using an airbrush, and placing in an oven for curing to obtain the flexible super-hydrophobic anti-icing coating.The preparation method is simple and environment-friendly, can be used on a large scale, and can solve the problems of anti-icing and deicing on various surfaces.

The invention discloses a vehicle-mounted microwave oven smell and VOC release detection and evaluation method and system based on vehicle-mounted high-temperature closed environment simulation. The method comprises the steps that a microwave oven to be detected is placed in a closed test cavity and sealed; the cavity is placed in a heating device to be heated to the preset high temperature and kept for the set time; the VOC sensor is used for monitoring the VOC concentration in the cavity in real time; collecting a gas sample through the sampling interface at the last test stage; performing standard sensory evaluation on the sample by an evaluator; carrying out comprehensive grade evaluation by combining the VOC concentration data and the smell grade score; according to the invention, the special closed cavity is arranged in the oven with accurate temperature control, high-temperature stress is directly and uniformly applied, and the released VOCs are ensured to be gathered in a limited space by utilizing the sealing property of the cavity, so that the VOCs are released in an accelerated manner under the most sensitive temperature and humidity condition of the material of the microwave oven to be detected, and the detection accuracy of the microwave oven to be detected is improved. The obtained release level and odor characteristics are highly related to the experience of the user in the actual vehicle-mounted scene.

The utility model discloses double-sided coating compound equipment, and aims to solve the problem that the quality of a product is unstable easily due to the fact that a material is inevitably contacted with a guide wheel in the compounding process of the conventional double-sided coating equipment. The equipment comprises a double-sided coating mechanism, a suspension type drying oven, a suspension type steering drying oven, a compounding mechanism and a finished product winding mechanism, wherein the suspension type steering drying oven comprises a steering box, a steering fresh air system inlet, an upper steering air duct and a lower steering air duct, and the upper steering air duct and the lower steering air duct are arranged in the steering box. Through the design that the suspension type steering drying oven is arranged at the outlet of the suspension type drying oven, materials are kept in the middle and are prevented from being in contact with objects under the combined action of wind pressure on the two sides during working, so that the glue surface of material coating is ensured to be intact, the phenomenon that the material operation tension cannot be effectively controlled due to adhesion is improved, and the service life of the materials is prolonged. And the problem of unstable product quality is avoided.

The utility model discloses a capacitor aging device, and specifically relates to the capacitor aging device technology field, the capacitor aging device comprises a bottom box and a bedplate, one side of the upper end surface of the bedplate is provided with a drying oven, one side of the inlet of the drying oven is provided with a tray, one side of the outer surface wall of the bedplate is fixedly connected with a first supporting seat, and the first supporting seat is provided with a second supporting seat. And a first six-axis robot is mounted on the upper end surface of the first supporting seat. According to the utility model, the six-axis robot, the driving motor, the photoelectric sensor, the controller and the rail robot are arranged, so that the device carries out an aging test on the capacitor in an automatic mode, the work of placing, wiring and the like of the capacitor can be rapidly completed, manual operation is not needed, the preparation time of the test can be greatly shortened, and the test efficiency is improved. According to the aging test device, the aging test efficiency of the capacitor is improved, the situation that wire connection errors and incorrect capacitor direction placement are prone to occurring due to manual operation is also avoided, the error rate caused by human factors is effectively reduced, and the test accuracy is improved.

The invention relates to a coating oven and a heat treatment method thereof. The coating oven comprises a heat exchange unit and a directional air supply unit, the heat exchange unit is communicated with an air exchange unit of the coating oven, the air exchange unit comprises an exhaust assembly and an air inlet assembly, the air inlet assembly is connected with an air duct of the coating oven, and the heat exchange unit is used for recycling waste heat of gas exhausted by the exhaust assembly. Fresh air guided in through the air inlet assembly is preheated to a first temperature interval and then conveyed to the air duct; the directional air supply unit communicates with the air duct, the air outlet direction of the directional air supply unit faces the base material conveying area, and the directional air supply unit is used for guiding air in the air duct to the base material conveying area. According to the scheme, heat exchange can be conducted through the temperature difference between the high-temperature exhaust air and the low-temperature fresh air of the coating oven, so that energy waste is avoided, and meanwhile energy consumption needed by fresh air heating is reduced.

The invention provides a precise baking process optimization method and system for a mini LED circuit board, a baking oven is divided into a preheating area, a main baking area and a cooling area, a double-circulation hot air system and top vertical airflow are adopted, infrared and digital humidity sensors are combined, independent temperature and humidity regulation and control are realized, nitrogen-argon mixed gas is injected, and opening and closing of injection holes are adjusted based on the thickness of a substrate, so that the precise baking process of the mini LED circuit board is realized. Maintaining positive pressure and oxygen content in the box based on a three-dimensional pressure sensor network, prolonging heating time according to environment humidity in a preheating stage, performing gradient control on a heating rate, constructing a humidity-moisture absorption rate mapping table and a three-layer neural network model, adjusting power output in combination with Z-axis temperature difference, and adopting forced air cooling and nitrogen sealing procedures in a cooling area; and a plate explosion prediction model is established, a historical data triggering parameter adjustment mechanism is combined, baking parameters are written into the two-dimensional code of the substrate through a block chain technology, and traceability of the whole process is realized.

The invention discloses a three-dimensional bio-based hierarchical pore nanocarbon water photovoltaic power generation material as well as a preparation method and application of the three-dimensional bio-based hierarchical pore nanocarbon water photovoltaic power generation material. The specific technical scheme of the preparation method comprises the following steps: firstly, preparing an acetic acid solution containing chitosan, glucose and borax, and standing the solution at room temperature for 24 hours; then, freeze-drying the precursor solution, and pre-carbonizing xerogel in a drying oven for a certain time; and finally, adding a certain amount of water into the pre-carbonized dry gel, putting the pre-carbonized dry gel into a reaction kettle with a polytetrafluoroethylene lining, reacting for a certain time at a certain temperature, dialyzing the obtained wet gel, and drying at normal temperature and normal pressure to prepare the nano carbon aerogel with the hierarchical pore structure. The nano carbon aerogel has good hydrophilicity, abundant surface charges and a hierarchical pore structure, and is a low-cost and excellent water evaporation induced power generation material.

The utility model discloses a hot air penetration type drying system for wet spunlace, which comprises a wall frame, a thermal cycle air supplement adjusting device and a circulating fan, and an upper-layer flow guide air plate, a rotary drum drying net and a lower-layer flow guide air plate are arranged in the wall frame; the upper-layer flow guide air plate is located above the rotary drum drying net, the lower-layer flow guide air plate is located below the rotary drum drying net, and the thermal cycle air supplement adjusting devices are arranged at an inlet and an outlet of the drying oven respectively. Due to the unique penetrating type design, hot air can directly act on the surfaces of materials, the drying time is greatly shortened, and meanwhile energy consumption is reduced.

The invention discloses a closed-loop control method for drying process parameters of an oven, which comprises air speed closed-loop regulation and NMP closed-loop regulation, the NMP closed-loop regulation comprises exhaust ratio closed-loop regulation and exhaust air rate closed-loop regulation, and the air speed closed-loop regulation, the exhaust ratio closed-loop regulation and the exhaust air rate closed-loop regulation comprise three sub-regulation systems, namely an air speed closed-loop regulation system, an exhaust ratio closed-loop regulation system and an exhaust air rate closed-loop regulation system, the closed-loop adjustment of the NMP is realized through the combined action of the closed-loop adjustment of the exhaust ratio and the closed-loop adjustment of the exhaust air rate. According to the closed-loop control method, the equipment debugging work can be efficiently completed without shutdown, the response speed is high, the adjustment precision is good, the intelligent degree is high, and the dependence on manual debugging experience in the debugging process is greatly reduced.

The invention provides a preparation method of a high-heat-resistance prepreg of a thick copper multilayer board, which comprises the following steps of: acquiring real-time sequences of storage modulus and loss modulus of resin on line, filtering and normalizing, extracting typical rheological response characteristics, and combining temperature feedback correction and inversion of resin conversion rate and glass-transition temperature to realize accurate identification of process deviation, so as to obtain the high-heat-resistance prepreg of the thick copper multilayer board. According to the method, closed-loop control over the pre-curing process can be effectively achieved, the curing degree consistency and the process self-adaption capacity of prepregs are improved, historical process memory and model parameter optimization are supported, and the long-term production stability and the product quality are improved.

The invention mainly relates to the technical field of metal surface treatment, in particular to a tinned copper wire surface treatment process which comprises the following steps: pickling and activating: pickling and activating a copper wire by adopting a phosphoric acid-sulfuric acid mixed solution to obtain a copper wire preform; immersing the copper wire preform into a silane coupling agent solution to obtain a copper wire intermediate; the copper wire intermediate is heated and then put into a mixed solution containing rare earth La particles, dip plating is conducted, and the tinned copper wire is obtained; the tinned copper wire passes through a heat preservation area, and the tinned copper wire is led out to enter a sealed ultrasonic vibration uniform flow area; performing multi-stage hot air shaping, and enabling the tinned copper wire to sequentially pass through three groups of annular air knives; cooling the tinned copper wire in an air cooling channel; and immersing the tinned copper wire into the composite passivation solution, taking out the tinned copper wire, putting the tinned copper wire into a centrifugal device, and finally baking the tinned copper wire in an oven. The application breaks through the limitation of the traditional tinned copper wire in binding force, dimensional accuracy and environment resistance, and can meet the requirements of the fields of electronic power, communication transmission and the like on high-reliability materials.

The application discloses a kind of lithium battery water system negative electrode coating drying system, including tunnel type oven box, spraying device, adjustable air nozzle and detection device, tunnel type oven box left and right sides are respectively symmetrically opened with feed inlet and discharge port, water system negative electrode is driven and set between feed inlet and discharge port, two groups of mounting plates are fixedly installed in the inside of tunnel type oven box on the upper and lower sides of water system negative electrode, a plurality of air inlets are equidistantly opened on two groups of mounting plates, adjustable air nozzle is installed in the outside of each air inlet, detection device includes at least four groups of temperature and humidity sensors, temperature and humidity sensors are installed between adjustable air nozzle at intervals, spraying device is installed on the upper and lower places of tunnel type oven box at feed inlet place.The advantage of the present application is that water can be sprayed on the surface of the foil of the water system negative electrode before slurry coating, which replaces the slurry through the oven first to increase the humidity in the tunnel type oven, so that the humidity and temperature in the oven quickly reach the working state, avoiding the subsequent dry cracking.

The utility model relates to the technical field of shoe material processing, in particular to a tunnel feeding type shoe sole mold. Comprising a feeding air cylinder, a material preparation table, a pressing box and a drying oven which are sequentially arranged on a workbench from left to right, the top face of the material preparation table is flush with a bottom plate of the pressing box and a bottom plate of the drying oven, a template is placed on the top face of the material preparation table, the pressing box is communicated with the drying oven, a pressing air cylinder is arranged at the top of the pressing box, and a push rod of the pressing air cylinder extends into the pressing box and is provided with a pressing plate. The drying oven is provided with a heating mechanism; the feeding air cylinder is used for pushing the template, hands are prevented from stretching into the pressing box or the drying box, and the injury risk is reduced; the templates are used as carriers to drive the shoe materials, one template corresponds to one shoe material, and rhythmic feeding is achieved.

The utility model relates to the technical field of lithium battery coating equipment, and discloses a double-sided simultaneous micro-concave coating device, which comprises a first micro-concave coating component, a second micro-concave coating component, a third micro-concave coating component and a third micro-concave coating component, wherein the first micro-concave coating component is used for carrying out micro-concave coating on a first surface of a pole piece; the first dispensing assembly is used for dispensing the first surface of the pole piece; the second micro-concave coating assembly is used for carrying out micro-concave coating on the second surface of the pole piece; the second dispensing assembly is used for dispensing the second surface of the pole piece; and the drying oven is used for drying the pole piece. According to the double-sided simultaneous micro-concave coating device, double-sided coating of a pole piece is completed at the same time, all the steps of the whole coating process are closely connected, the connection time loss between the working procedures is reduced, full-automatic operation without excessive manual intervention is achieved through reasonable equipment design and an automatic control system, and the working efficiency is improved. The production efficiency and the coating quality are greatly improved, errors and uncertainty caused by manual operation are reduced, and meanwhile the stability and the consistency of pole piece coating are guaranteed.

The invention discloses a multi-release type alumite, and relates to the technical field of alumite preparation, and the multi-release type alumite is prepared by the following steps: preparing a release coating material liquid, and coating and baking to obtain the multi-release type alumite; the preparation of the release coating material liquid comprises the following steps: mixing a modified waterborne polyurethane-acrylate composite emulsion, a molybdenum disulfide-cage phase change microcapsule hybrid nanofiller, a coalescing agent, a wetting leveling agent and an organic silicon defoaming agent in a stirring state, adjusting the viscosity, and then standing for defoaming; the preparation of the release coating material liquid comprises the following steps: mixing the modified waterborne polyurethane-acrylate composite emulsion, the molybdenum disulfide-cage phase change microcapsule hybrid nanofiller, the coalescing agent, the wetting leveling agent and the organic silicon defoaming agent in a stirring state; the step of coating and baking comprises the sub-steps of uniformly coating a PET base film subjected to corona treatment with a release coating material liquid by adopting a micro gravure coating technology, carrying out gradient heating pre-baking by virtue of a three-section infrared tunnel oven, and finally baking in a high-temperature baking area. Through chemical integrated design, low release force and high hardness of the coating are coordinated, clean and sharp transfer of fine patterns is achieved, a process window is widened by means of a photo-thermal sensitization mechanism, and adaptability and yield of products under complex working conditions are improved.