3180 results about "Hot press" patented technology

The invention relates to the technical field of sealing ring hot-press forming, discloses sealing ring hot-press forming equipment, and aims to solve the problems of low finished product taking-out and mold cleaning efficiency and low automation degree in the prior art. The equipment comprises a hot press base, a hot press base and a lower die which are arranged on the hot press base, and a hot press plate and an upper die which are arranged above the hot press base in a lifting manner. The pushing part and the scraping part which work in a linkage mode are arranged, and the pushing part comprises a lifting supporting and pushing piece driven by an electric rod and a top ring and is used for upwards ejecting out a sealing ring formed in a lower mold; the scraping part comprises a rotation guiding part for enabling the supporting and pushing part to rotate during ascending and descending and a silica gel scraper which is elastically connected to the top ring and can be unfolded in the ejection process, and when the electric rod drives the pushing part to ascend to eject out the sealing ring, the rotation guiding part enables the pushing part to integrally rotate, the silica gel scraper is driven to be tightly attached to and scrape the inner wall of the lower mold, and residual rubber is scraped; the production cycle is shortened, and the production efficiency and the automation level are improved.

The invention provides an aviation composite material hot-press forming workpiece loading method based on a hybrid optimization algorithm. The method comprises the steps that workpiece demand information and autoclave platform information in composite material hot-press forming manufacturing are obtained; minimizing the opening times of the autoclave as a target function; establishing a two-dimensional multi-layer platform hot press molding workpiece loading model, defining space constraints, distribution constraints, resource constraints and type constraints among workpieces, and incorporating the constraints into model constraint conditions; a GA-SP is adopted to optimize a workpiece loading sequence and a rotation state, an optimal layout is generated through chromosome coding, decoding, selection, intersection and mutation operations, a hybrid optimization algorithm is constructed in combination with a neighborhood search strategy, efficient arrangement of workpieces on different platforms is realized in combination with a simulated annealing criterion, and an optimized loading scheme is output. The production efficiency of the hot press molding procedure can be improved, the manufacturing cost is reduced, and efficient technical support is provided for intelligent manufacturing of aviation composite materials.

The invention relates to the technical field of high-entropy ceramic preparation, and particularly discloses (TiZrNbHfTaV) C-SiC high-entropy composite ceramic as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing the (TiZrNbHfTaV) C-SiC high-entropy composite ceramic consisting of double phases of (TiZrNbHfTaV) C and SiC by adopting a rapid hot pressed sintering technology. The preparation process is simple and efficient, and large-scale industrial application is facilitated; the prepared multiphase ceramic is high in density, uniform in organization structure and reasonable in component design, the multiphase ceramic shows excellent mechanical properties, and the hardness, the fracture toughness and the wear rate are 34.00 GPa, 6.4 MPa.m < 1 / 2 > and 1.8 * 10 <-6 > mm < 3 > N <-1 > m <-1 > respectively. Compared with the traditional binary carbide ceramic, the (TiZrNbHfTaV) C-SiC high-entropy composite ceramic disclosed by the invention has excellent hardness and toughness, and the friction and wear properties are remarkably improved.

The invention relates to the technical field of reverse osmosis membrane supports, in particular to a polyester non-woven fabric and a preparation method and application thereof.The preparation method comprises the steps that S1, polyester main body fibers and polyester adhesive fibers are used as raw materials to prepare high-quantitation original cloth M0 and low-quantitation original cloth H0; carrying out hot pressing pretreatment on the H0 to obtain a product H0 '; s2, overlapping and hot-pressing M0 and H0 'to obtain a composite non-woven fabric M1H1; s3, the M1H1 is impregnated with a functional solution, and the functional solution contains para-aramid nanofibers and nano calcium carbonate modified by hexadecyl trimethyl ammonium bromide; and then carrying out cold pressing on the composite non-woven fabric impregnated with the functional solution to obtain the nano-material modified composite non-woven fabric. And S4, carrying out secondary hot pressing treatment to obtain the polyester non-woven fabric. The polyester non-woven fabric can effectively avoid the problems of excessive curling, excessive permeation of a polysulfone solution and the like during curing after being coated with polysulfone, and is more beneficial to application in a reverse osmosis membrane.

The invention discloses a method for retarding black spot wrinkles of a PMMA (Polymethyl Methacrylate) gluing diaphragm lithium battery pole piece, which comprises the following steps: S1, adjusting parameters of a winding machine, adjusting the distance between pole pieces and tabs according to different parameters, and winding a battery cell; s2, performing hot pressing on the wound roll core by using different hot pressing parameters; s3, the hot-pressed roll core is assembled, put into a shell and fully charged in a capacity grading mode; wherein the parameter of the winding machine is embossing pressure; the hot pressing parameters comprise temperature, pressure and time. Therefore, by selecting the most appropriate embossing pressure and hot pressing parameter, black spots and wrinkles on the lithium battery interface of the PMMA glued diaphragm can be relieved, so that the electrochemical performance and the safety performance of the battery are improved.

The utility model discloses a wood hot press which comprises a hot press body, the hot press body comprises a hydraulic lifting assembly, a heating plate and a base, a lifting column is installed between the hydraulic lifting assembly and the heating plate, the base is installed on the bottom side of the heating plate, a water storage tank is arranged in the heating plate, and a heat conduction plate is installed at one end of the water storage tank. And a heating assembly is mounted in the hydraulic lifting assembly. According to the hot press for the wood, water is arranged in the heating plate and serves as a heat conduction medium, it can be guaranteed that the temperature distribution on the surface of the heating plate is more uniform, the heating uniformity and efficiency of wood processing are remarkably improved, meanwhile, damage to the wood in the pressing process is effectively reduced, and the quality of the wood is improved. And high quality and yield of wood processing are ensured.

The invention discloses a method for improving cloth lines after hot pressing of an epoxy glass fiber composite material, and the method comprises the steps of resin glue solution blending, glass fiber cloth presoaking, gradient pre-drying, hot pressing molding, cooling demolding and the like. The volume expansion rate is accurately matched with the resin curing shrinkage rate, interface stress caused by shrinkage difference is directly counteracted, meanwhile, gradient pre-drying and staged hot pressing processes are combined, and the resin fluidity and interface bonding strength are optimized. The resin conversion rate is controlled in two stages through gradient pre-drying, and flow blocking caused by premature curing is avoided; and secondly, through the chemical compensation mechanism of the expansion monomer, the mechanical property of the material is maintained while the cloth lines are eliminated.

The invention discloses hot-pressing equipment for battery piece slurry, which comprises a piece feeding transmission unit, a hot-pressing unit and a piece discharging transmission unit which are arranged in sequence, and is characterized in that the hot-pressing unit comprises an upper roller assembly and a lower roller assembly; the upper roller assembly is provided with a first front roller hot-pressing module and a first rear roller module, and the upper roller assembly is provided with a first transmission belt which is in transmission connection with the first front roller hot-pressing module and the first rear roller module; the lower roller assembly is provided with a second front roller hot-pressing module and a second rear roller module, and the lower roller assembly is provided with a second transmission belt which is in transmission connection with the second front roller hot-pressing module and the second rear roller module. According to the invention, the battery piece is fully contacted by the first front roller hot-pressing module and the second front roller hot-pressing module, so that the pressure on the battery piece during hot pressing is more uniform, the hot-pressing effect of the battery piece is better, the temperature of the battery piece in the conveying process can be gradually changed, and the structural stability of the formed grid line is better.

The utility model provides a thin film surface patch hot-pressing laminating mechanism. The thin film surface patch hot-pressing laminating mechanism comprises a supporting structure, a hot-pressing device, a driving device, a lifting structure, two buffering devices and a leveling roller, the supporting structure comprises a bearing platform and two first sliding grooves, and the two first sliding grooves are symmetrically formed in the bearing platform. The hot pressing device comprises a first lifting device and a hot pressing plate, and the hot pressing plate is fixedly mounted at the output end of the first lifting device; the two buffer devices are symmetrically mounted at the output end of the lifting structure; and the leveling roller is rotationally mounted between the two buffer devices. According to the thin film surface pasting hot-pressing pasting mechanism, after the flattening roller is moved to the position above a thin film, pressure applied to the second lifting device is buffered through the elastic piece, the flattening roller is driven by the motor to roll on the thin film, the thin film is flattened, meanwhile, air between the thin film and a workpiece is extruded and exhausted, and therefore the thin film surface pasting effect is achieved. And the influence on the subsequent process is avoided.

The invention discloses a bamboo longitudinal and wood transverse composite whole container bottom plate and a preparation method thereof, and belongs to the field of bamboo-wood composite materials. The bottom plate is of a seven-layer alternate paving structure and is formed by compositing transverse wood veneer layers and longitudinal radial bamboo curtain layers, wood veneers are made of lignin modified polyurethane adhesive (reinforced by nano-silicon dioxide), and bamboo curtains are made of bamboo fiber nano-crystal reinforced soybean protein adhesive (cross-linked by genipin). Through continuous paving, fixed-length saw cutting and a'cold-in-cold-out 'hot pressing process (the pressure is 1.5-8.0 MPa, and the temperature is 140-220 DEG C), whole-piece production of any length is achieved. According to the technology, the bamboo-wood interface bonding problem is solved, the bending strength reaches 120 MPa, the interlayer shear strength is 7.8 MPa, the strength retention rate after damp-heat aging resistance is 90%, the formaldehyde emission is smaller than or equal to 0.05 mg / m < 3 >, the bio-based carbon content is 85%, high strength, weather resistance and environment friendliness are achieved, a traditional spliced container bottom plate can be replaced, the material utilization rate is increased by 20% or above, and the manufacturing cost is remarkably reduced.

The embodiment of the invention discloses a flow field and temperature field prediction method and device of an autoclave, equipment and a medium. The prediction method comprises the following steps: performing wind speed measurement on at least two transverse sections of the autoclave through a wind speed detection device arranged in the autoclave to obtain a wind speed measurement result of each transverse section; determining a wind speed distribution function of the autoclave according to the wind speed measurement result of the first cross section; according to the model simulation file of the autoclave and the wind speed distribution function, under preset flow field parameters of the autoclave, performing steady-state calculation on the autoclave to obtain a flow field distribution result of the autoclave; comparing the wind speed measurement result of the second cross section with the flow field distribution result; and when the wind speed comparison result meets the flow field prediction precision, taking the preset flow field parameter and the wind speed distribution function as the flow field prediction result of the autoclave. Wind speed distribution is detected through the wind speed detection device, so that preset flow field parameters are adjusted, and accurate simulation of wind speed distribution in the autoclave can be realized.

The utility model relates to a progressive striking type high-frequency compaction assembly line. The progressive striking type high-frequency compaction assembly line comprises operation equipment and a bearing component, the operation equipment comprises a preheating part, a high-frequency hot-pressing part and a water-cooling cold-pressing wood striking part; the high-frequency hot-pressing part comprises a plurality of high-frequency hot-pressing machines, a moving roller way of each high-frequency hot-pressing machine extends from an internal hot-pressing station to inlets and outlets in the two sides to be exposed, and the adjacent exposed moving roller ways are in butt joint; the water-cooling cold-pressing wood striking part comprises a plurality of water-cooling cold-pressing machines, a movable roller way of each water-cooling cold-pressing machine extends and is exposed towards inlets and outlets in the two sides from an internal pressing station, and the adjacent exposed movable roller ways are in butt joint; the bearing component is a tray which is arranged below the wood board and used for bearing the wood board. According to the production line, the high-frequency hot-pressing part, the water-cooling cold-pressing wood striking part and the bearing component are used, on the premise that the thickness of a wood board is allowed to rebound, the technical problems that in the prior art, due to the fact that an upper pressing plate and a lower pressing plate are needed for clamping and pressure maintaining, operation is complex, and process step adjustment is limited in the production line circulation process are solved, and the rebound problem is solved.

The invention relates to the technical field of pressure regulation and control, and discloses a multi-section pressure regulation and control device in a plate pressing process, the multi-section pressure regulation and control device comprises a supporting and positioning mechanism, the middle position of the supporting and positioning mechanism is connected with a multi-section pressure regulation mechanism, and the supporting and positioning mechanism comprises a supporting and positioning base; through a precise meshing mechanism of the first adjusting rack, the second adjusting rack and the adjusting gear, cooperative work of the first hot-pressing frame and the second hot-pressing frame is achieved, and bidirectional uniform pressing is conducted on multiple layers of plates in the multi-section pressure adjusting and controlling process; in the high-pressure stage, the two hot-pressing frames act at the same time, so that the interior of the plate is in a bidirectional uniform compression state, the bending or warping phenomenon of the plate is effectively reduced, and the interlayer bonding strength and flatness of the plate are remarkably improved; the two-way pressing mode not only reduces rework and rejection rate caused by deformation or infirm combination of the plate, but also promotes sufficient filling of the adhesive through uniform stress distribution, and further enhances the overall performance of the plate.

The invention provides a hot-pressing preparation method and application of a magnetic powder core. The hot-pressing preparation method comprises the following steps: carrying out insulation coating on glassy state soft magnetic amorphous alloy powder to obtain an intermediate powder material with a coating structure; the coating structure comprises a first coating layer or comprises a first coating layer and a second coating layer which are arranged in sequence; the first coating layer comprises nano inorganic particles and phosphate, and the second coating layer comprises an organic coating material; carrying out hot pressing treatment on the material containing the intermediate powder material to obtain a magnetic powder core; the adopted glassy soft magnetic amorphous alloy powder has a supercooled liquid phase region, the lowest temperature and the highest temperature of the supercooled liquid phase region are Tg and Tx respectively, the temperature of the hot pressing treatment is (Tg-20 DEG C)-(Tx-20 DEG C), the pressure of the hot pressing treatment is 100-500 MPa, and the holding time is 2 s-120 min. According to the magnetic powder core provided by the invention, the coating layer can be kept complete in the hot pressing process, and the magnetic powder core has relatively high density, high resistivity, high magnetic conductivity and low loss.

The invention discloses a graphene film / copper hot-pressing composite directional high-thermal-conductivity material as well as a preparation method and application of the graphene film / copper hot-pressing composite directional high-thermal-conductivity material. The preparation method comprises the following steps: punching a graphene film to form a plurality of hole structures; blade-coating copper paste on the surface to form a liquid film; the copper paste comprises copper powder, a coupling agent and an organic phase; stacking a plurality of layers; carrying out hot pressing treatment on the circulating laminated structure; and slicing to obtain the graphene film / copper hot-pressing composite oriented high-thermal-conductivity material. When copper powder particles are embedded into the hole structure, the whole hole structure is filled with the copper powder particles, the copper powder particles can transversely enter gaps between graphene sheet layers, a three-dimensional interlocking structure is formed through the sintering effect, resin contained in the copper paste can be subjected to a carbonization reaction in the glue discharging stage, a carbon skeleton is formed, and therefore the three-dimensional interlocking structure is formed. And the infiltration process between the copper powder and the graphene sheet layer is facilitated, and finally the heat conduction performance and the mechanical performance of the graphene film / copper hot-pressing composite oriented high-heat-conduction material are remarkably improved.

The invention relates to the crossing field of mechanical engineering and intelligent manufacturing, and discloses a real-time monitoring, regulating and controlling method for the manufacturing process of an automobile lightweight component. According to the method, a distributed fiber bragg grating sensing array is embedded in a mold, and a three-dimensional strain field at the flowing front edge of resin is obtained in real time; a multi-scale pore generation kinetic model is combined to perform online inversion on an unwetted area and pore distribution; and the pressure gradient and the mold temperature field of the hot press are adaptively regulated and controlled, and the flow path is dynamically corrected. The system comprises a sensing embedding module, a strain demodulation module, a pore inversion module, a regulation and control instruction generation module and a multi-zone execution module. According to the method, closed-loop precise control over the porosity being lower than 0.5% is achieved, and the consistency and reliability of the mechanical property of the component are remarkably improved.

The invention discloses an autoclave temperature offline simulation and online prediction method based on Hybrid KAN feature fusion. The autoclave temperature offline simulation and online prediction method comprises the steps that historical temperature time sequence data and static process parameter data of different batches are collected; performing feature screening and preprocessing, and constructing a time sequence data input sequence and a static process parameter input sequence; designing a Hybrid KAN neural network model, taking the time sequence data input sequence and the static process parameter input sequence as input, and outputting a predicted value of the temperature of the autoclave at the next moment through feature extraction and fusion; taking minimization of a loss function as a target, training the model, and obtaining an optimal model by using a structured pruning strategy; and deploying an optimal model, and realizing off-line simulation and on-line prediction of the temperature of the autoclave through rolling time window iteration multi-step prediction. The method is high in accuracy, wide in universality, small in model parameter scale, high in reasoning efficiency and suitable for autoclave temperature prediction in complex scenes.

The invention relates to the technical field of wood manufacturing, in particular to a preparation method of a multifunctional phase-change transparent wood-based composite material, which comprises the following steps: delignification of wood through acidic sodium chlorite, modification with silica sol to obtain a porous template, dipping in a PEG / MMA / AIBN / acetone mixed solution, and hot press molding to obtain a phase-change transparent base material; and finally, coating a PDMS solution containing cesium tungsten bronze and strontium aluminate, and performing low-temperature drying twice to obtain the multifunctional composite material. Silica sol pretreatment is combined with a PEG / MMA impregnation and compression technology, the preparation process is simple and easy to implement, leakage of the phase change material can be effectively prevented, meanwhile, the stability and performance consistency of the composite material are improved, the material is suitable for large-scale production, meanwhile, cesium tungsten bronze and strontium aluminate are introduced, the material is endowed with hydrophobicity, light-emitting characteristics and heat shielding capacity, and the material is suitable for large-scale production. And the intelligent building has the functions of photo-thermal management, self-cleaning and decoration, so that diversified application requirements are met.

The invention discloses a device and a method for measuring the velocity field of an autoclave through hot-pressing wind speed. The device comprises a thermosensitive probe, a Wheatstone bridge, a lock-in amplifier, an NI multi-channel data acquisition card and a computer, the thermosensitive probe is used for instantaneously detecting the temperature of a placement point position and generating resistance fluctuation based on sensing temperature change; the Wheatstone bridge is formed by connecting a fixed resistor, a variable resistor and a thermosensitive probe, and is used for forming a series circuit with the lock-in amplifier; the lock-in amplifier is used for supplying power to the Wheatstone bridge and providing co-frequency voltage at the same time, so that resistance data of a thermosensitive probe in the Wheatstone bridge is converted into voltage data to be output; the NI multi-channel data acquisition card is used for acquiring in-phase component voltage signals output by the lock-in amplifier; the computer is used for processing the voltage data to obtain the average speed and the pulsation speed of the measurement point. According to the invention, the problems of limited precision, insufficient sensitivity and poor adaptability to the internal environment of the autoclave in the conventional gas speed measurement method are solved.

The invention discloses a capacitive flexible sensing array based on an FPC technology and a preparation method thereof, PVDF-TrFE and ionic salt [BMIM / Br] in a specific mass ratio are prepared into an ionic thin film dielectric layer under the action of a cross-linking agent, and a specific rectangular pyramid microstructure is given to the ionic thin film dielectric layer through a microneedle structure mold; and an upper electrode layer and a lower electrode layer for channel multiplexing are prepared in combination with an FPC technology, and finally the sensing array is packaged through vacuum hot pressing bonding. The core innovation of the invention lies in that through the synergistic effect of the ion double electric layer effect, the microstructure stress concentration and the FPC electrode multiplexing design, ultrahigh sensitivity (0-20kPa interval sensitivity gt, 30kPa) and low crosstalk (array crosstalk rate lt, 5%) are realized at the same time. The local deformation characteristic of the microneedle structure effectively restrains edge electric field diffusion, the crosstalk problem of a high-density array is solved from the physical structure, and a key technology is provided for application of flexible electronics in the field of precise tactile perception.

The invention discloses a multi-layer cloth hot-pressing bonding process for a waterproof layer of a backpack, and relates to the technical field of hot-pressing equipment, the multi-layer cloth hot-pressing bonding process comprises a hot press main body, a rear table, a guide roller table, a gluing assembly and a hot-pressing assembly, and precise positioning and calibration of multiple waterproof material laminations are achieved through the guide roller table and a deviation rectifying assembly; the bag body is automatically extruded by utilizing material tension during layering, so that accurate control and uniform coating of the adhesive are realized; an electromagnetically-driven partition heating plate is adopted for local fine adjustment of pressure and temperature, and hot pressing uniformity and bonding strength of complex shapes are ensured; and finally, an ultrasonic detection system is integrated, coupling agent spraying is matched for online scanning of the hot-pressed waterproof material, defects such as bubbles, debonding and foreign matter are recognized, positioned and recorded in real time, and closed-loop quality control is formed.

The preparation method comprises the following steps: shredding a light fibrous plant raw material which is difficult to process to 1-5mm, adding a certain amount of lignin, fully mixing with diammonium hydrogen phosphate or ammonium dihydrogen phosphate, carrying out hot press molding at 130-190 DEG C by using a pelletizer to prepare heavy particles with the particle size of 8-10mm, and carrying out high-temperature sintering to obtain the columnar activated carbon for desulfurization and denitrification of the fibrous plant raw material, thereby obtaining the columnar activated carbon for desulfurization and denitrification of the fibrous plant raw material and the columnar activated carbon for desulfurization and denitrification of the fibrous plant raw material. Heating the heavy particles to 400-700 DEG C in a rotary furnace, carbonizing for 1-3 hours, introducing a mixed gas of water vapor and air, and carrying out segmented activation at 850-950 DEG C-1000 DEG C to prepare high-quality activated carbon with the iodine value of more than or equal to 950 mg / g; crushing activated carbon to 140-325 meshes, mixing the crushed activated carbon with the composite glue solution, adding a proper amount of water for kneading, and forming the mixture into 2-8mm columnar particles by a hydraulic granulator or a screw extrusion granulator; through drying at the temperature of 100-300 DEG C and heat treatment at the temperature of 700-900 DEG C in a nitrogen, water vapor or anaerobic atmosphere, a basic group generated by the binder in the heat treatment has a very strong chemical adsorption effect on acid gas, later-stage modification is not needed, and excellent desulfurization and denitrification performance is achieved.

This invention discloses a novel automated thermocompression welding device and method. The automated thermocompression welding device includes a power supply, a controller, a drive mechanism, and a thermocompression welding mechanism. The drive mechanism is connected to the thermocompression welding mechanism and electrically connected to the controller, used to drive the thermocompression welding mechanism to move horizontally. The thermocompression welding mechanism includes multiple independent thermocompression welding components. Each thermocompression welding component includes a welding head, electrode rod, punch rod, and vertical drive component connected in sequence, and also includes a pressure sensor and a temperature sensor. The vertical drive component, pressure sensor, and temperature sensor are electrically connected to the controller. The pressure sensor is used to sense the pressure of the welding head pressing down, the temperature sensor is used to sense the temperature of the welding head, and the vertical drive component is used to drive the punch rod, electrode rod, and welding head to move vertically. This device and method can ensure that the pressure and temperature on each FPC pad and pin are consistent, guaranteeing the welding quality and avoiding defects such as incomplete welding, weak welding, or high-temperature weld burns.

The invention discloses a gadolinium-containing metal-based structure and function integrated neutron shielding material which comprises a stainless steel base material and gadolinium, chromium, tungsten and tantalum which are added into the stainless steel base material, and the stainless steel base material is martensitic stainless steel. The invention also discloses a preparation method of the shielding material. The preparation method comprises the following steps: (1) preparing and mixing the raw materials according to the design proportion; (2) smelting the mixed raw materials into a cast ingot under the protection of vacuum or inert gas; and (3) the cast ingot is made into the martensitic stainless steel material through hot pressing machining. Through the mode, the gadolinium-containing metal-based structure and function integrated neutron shielding material prepared by the preparation method disclosed by the invention has excellent mechanical properties, can be used as a structural component material, is suitable for radiation shielding protection of a microminiature reactor, and can be used as a structural component material to realize integration of a structure and a neutron shielding function.

The application discloses a one-piece integrated inductance hot-pressing device and process, relates to the technical field of inductance hot-pressing machines, and comprises a base, a guide column is arranged on the top of the base, a detachable replacement part is arranged on a lower die body, and a displacement movable part is arranged at the bottom of the lower die body. The detachable replacement part is arranged, when the die connecting plate is replaced, the rectangular frame is pressed downward first, the clamping pin is separated from the locking hole, the blocking pin column is moved upward and the pressing pin is pushed out of the longitudinal hole, meanwhile, the blocking pin column hinders the clamping pin, so that the fourth reset spring cannot be restored, when the die connecting plate is installed, the pressing pin and the blocking pin column are aligned, then the die connecting plate is pressed, the blocking pin column is pushed downward by the pressing pin, when the locking hole and the transverse hole on the pressing pin are aligned, the clamping pin is inserted into the locking hole, so that the installation and fixation of the die connecting plate are realized, the die is quickly replaced according to the requirements of different inductance products, and the flexibility and production efficiency of the equipment are improved.

The manufacturing method of the laminated directional batten bearing type bamboo-wood composite material comprises the following steps: (1) preparing raw materials; the whole chordwise bamboo strip mat, the radial bamboo strip curtain, the directional battens and the wood veneers are prepared according to process requirements, and wear-resistant layer materials are selected. And (2) paving a plate blank. And paving the whole-piece wood veneer, the non-whole-piece wood veneer, the radial bamboo split curtain, the directional batten, the radial bamboo split curtain, the non-whole-piece wood veneer, the whole chordwise bamboo split mat and the wear-resistant layer in sequence from bottom to top. And (3) hot press molding. The hot press can be an intermittent single-layer hot press or an intermittent multi-layer hot press; the hot pressing mode is a'cold feeding-cold discharging 'hot pressing forming process, namely the procedures of'feeding, heating, heat preservation and hot pressing, cooling and pressure relief and discharging'; the hot pressing process is divided into three stages, namely pressure boosting, pressure maintaining and unloading, in the pressure maintaining stage, the unit pressure of a press is 1.5-8Mpa, and the temperature of a hot pressing plate is 140-220 DEG C. And (4) longitudinally and transversely cutting edges to be processed into specification materials. And the thickness is 15-40mm, the common breadth is 1220 * 2440mm, and a specific breadth can be made as required. The bamboo-wood composite board has the advantages that bamboo wood and wood are used as main raw materials, leftover materials obtained through wood processing are combined, the physical and mechanical properties of the product are better than those of natural wood boards or other wood-based artificial board materials, and the bamboo-wood composite board can be widely applied to vehicle and ship bottom boards, container bottom boards and boards in other load-bearing occasions.

The invention relates to the technical field of fuel cell preparation, in particular to a hot-pressing structure utilizing continuous isostatic pressing and a preparation method of a CCM, the hot-pressing structure comprises a first conveying roller, a second conveying roller and a third conveying roller which are sequentially arranged from top to bottom, and the hot-pressing structure is characterized by further comprising a base, the base is provided with a feeding roller and a discharging roller which are arranged along the conveying direction of the proton membrane, the feeding roller and the discharging roller are coated with a metal belt, the metal belt is internally provided with pressing plates, and the pressing plates are arranged on the upper side and the lower side of the proton membrane. According to the invention, the processing quality of the CCM can be improved while the production efficiency of the CCM is maintained.

The invention relates to the technical field of busbar welding equipment, and discloses a railway traction converter laminated busbar automatic welding machine which comprises a machining base, and an upper hot-pressing mechanism and a bottom hot-pressing mechanism are arranged on the upper surface of the machining base. The machining base is provided with an automatic discharging mechanism and an automatic feeding mechanism which are used for automatically guiding and pushing materials. By arranging the upper hot-pressing mechanism, the bottom hot-pressing mechanism, the automatic discharging mechanism and the automatic feeding mechanism, the multiple metal plates can be guided and limited through the automatic discharging assembly, so that the multiple metal plates are automatically discharged downwards, and meanwhile, the automatic discharging assembly is matched with the automatic feeding mechanism; the metal plates with the corresponding number can be pushed to the position above the bottom hot-pressing mechanism through the automatic feeding mechanism, hot-pressing welding work of the metal plates can be achieved through cooperation with the upper hot-pressing mechanism, manual stacking and feeding by workers are not needed, and the working efficiency is improved.

The utility model discloses a hot pressing device for preparing a high-precision multilayer circuit board, which comprises a base and a multilayer circuit board body, the upper ends of four corners of the base are fixedly connected with supporting rods, the upper ends of the four supporting rods are provided with the same supporting seat, and the upper end of the central position of the supporting seat is fixedly provided with a hydraulic cylinder; and a horizontal sliding seat is connected among the four supporting rods in a sliding manner. Buffering protection is provided for the material loading seat through the hydraulic buffers and the buffering air bags made of the polyurethane rubber, buffering protection is provided for the pressure bearing seat through the rectangular annular base plate made of the polyurethane rubber, the material loading seat and the pressure bearing seat are prevented from being damaged in the long-term hot pressing process, the service life of the material loading seat and the service life of the pressure bearing seat are prolonged, and the service life of the material loading seat and the pressure bearing seat is prolonged. Balls and limiting grooves are matched with a rectangular annular base plate made of polyurethane rubber to limit the pressure-bearing seat, so that an air cylinder is matched with a jacking block to penetrate through a rectangular opening to jack the pressure-bearing seat out, and the hot-pressed multilayer circuit board in the material carrying seat can be conveniently and quickly taken out.

The invention discloses an automatic loading and unloading device and method for a stator coil linear hot pressing process, belongs to the field of stator coil manufacturing, and aims to improve loading and unloading efficiency and guarantee personal production safety. The device comprises a ground rail parallel to a linear hot press, a first joint robot and a second joint robot are arranged on the ground rail in a sliding mode, and loading and unloading devices are arranged at the tail ends of the first joint robot and the second joint robot. The first joint robot and the second joint robot convey a mold pressing plate on the lifting frame and a stator coil on the second power roller way into a mold cavity of the linear hot press through the loading and unloading device. Or the first joint robot and the second joint robot send the mold pressing plate in the mold cavity of the linear hot press to the placing lifting frame through the loading and unloading device, and the stator coil subjected to hot pressing is conveyed to the first power roller way. The loading and unloading efficiency is improved, manual loading and unloading operation is replaced, and the problems of high manual operation intensity, low loading and unloading efficiency and the like are solved.