97results about How to "Small thermal deformation" patented technology

The invention belongs to the technical field of gear machining equipment.The multi-hole gear machining punching equipment comprises a base, a telescopic rod is installed at the upper end of one side of the base, the outer end of the telescopic rod is sleeved with a sliding sleeve, the side end of the sliding sleeve is in threaded connection with a first positioning rod, a positioning table is arranged at the front end of the sliding sleeve, and a control box is installed at the top end of the telescopic rod; the bottom end of the front side of the control box is movably connected with a movable plate, a drill bit is installed at the side end of the movable plate, a cutting fluid spraying piece is arranged at the bottom end of the movable plate, a driving piece is installed at the top of the control box, and a circulating assembly is arranged in the base. Through the arrangement of the first placing assembly and the second placing assembly, personnel can complete single-hole or multi-hole punching operation of the gear by replacing the corresponding first placing assembly or the second placing assembly, meanwhile, cutting fluid in use can be purified, the working environment of use is guaranteed, the cutting fluid is recycled, and the use cost is saved.

The invention provides a gear ring rotational separation machining method and equipment. The equipment comprises a workbench, a workpiece sliding table, a tool sliding table, a workpiece main shaft assembly and a tool main shaft assembly. The workpiece sliding table and the tool sliding table are installed on the workbench, the workpiece sliding table can move transversely, and the tool sliding table can move longitudinally. The workpiece main shaft assembly is installed on the workpiece sliding table, and the cutter main shaft assembly is installed on the cutter sliding table. The workpiece main shaft assembly is used for being installed on a workpiece body, and the tool main shaft assembly is used for installing a tool body. The machining precision is improved, and the structural organization of a workpiece is not damaged; and workpieces are simply and conveniently machined, blades are easy to replace, stability is high, and machining efficiency is high.

The invention relates to a rapid pressing clamp for friction stir spot welding and a using method of the rapid pressing clamp, and relates to the technical field of friction stir spot welding. Comprising a standing working box and a welding platform integrally connected with the top end of the working box, and further comprises a welding base, a welding pressing block, a pneumatic quick pressing mechanism and a limiting mechanism, the limiting mechanism can clamp welding materials of different sizes, the practicability of the quick pressing clamp is effectively improved, the limiting mechanism can fasten a weldment, and the welding efficiency is improved. The weldment is prevented from rotating in the welding process; the pneumatic quick pressing mechanism is responsible for applying preset pressing force in the vertical direction to the weldment so as to ensure the stability of the weldment in the welding process; the design of the welding clamp aims at improving the efficiency of welding operation and the welding quality, and quick clamping and releasing of a weldment are achieved by simplifying the clamping and disassembling processes of the weldment, so that thermal deformation of the weldment in the welding process is reduced, and the production efficiency is improved.

The invention discloses a machining method for an input shaft of an electric drive assembly generator. The machining method comprises the following steps of first finish turning, second finish turning, gear hobbing, spline broaching, heat treatment, spline hard broaching, outer circle and end face grinding and gear grinding. In the step of hard pulling of the spline, the internal spline is subjected to hard pulling after being heated, the large diameter, the small diameter and the tooth side of the internal spline are subjected to hard pulling, and the precision of the internal spline subjected to heat treatment is corrected. In the step of grinding the outer circle and the end face, an internal spline of the input shaft of the generator is expanded, the end face and a center hole are positioned, and the outer circle and the end face of the input shaft of the generator are ground. In the gear grinding step, the internal spline of the input shaft of the generator is expanded, the end face is positioned, and gear grinding is conducted on the gear. Thermal deformation of the internal spline is corrected after heat treatment, then the internal spline is adopted as a standard for machining of subsequent procedures, the standard is unified, and it is guaranteed that the internal spline of the generator input shaft and the external spline of the generator rotor are well matched, torque is transmitted, a bearing operates stably, and operation stability of an electric drive assembly is guaranteed.

The invention discloses a superaudio frequency induction quenching machine, and belongs to the technical field of metal processing. A superaudio frequency induction quenching machine comprises a box body, an inner cavity of the box body is fixedly connected with a partition plate, a motor is fixedly installed at the bottom of the inner cavity of the box body, an output shaft of the motor is fixedly connected with a residual gear, the outer side of the residual gear is meshed with a second gear, and the outer side of the second gear is fixedly connected with a fixing rod. One end of the fixing rod is rotationally connected with the box body, and the other end of the fixing rod penetrates through the box body and is fixedly connected with a cross plate. According to the ultrasonic frequency induction quenching machine, by arranging the feeding assembly, an eccentric wheel can be automatically controlled to rotate when the device is used for quenching materials, so that a material pushing plate pushes the materials at the lowest part of a material storage box into an objective table of a feeding area through a discharging groove, and the situation that workers manually place the materials on the objective table is avoided; and therefore, the labor intensity of workers is reduced, and the practical performance of the device is improved.

The invention provides a boride reinforced light refractory high-entropy alloy coating, and belongs to the technical field of alloy surface coating modification. The preparation method comprises the following steps: (1) preparing the following components in atomic percent: 24.39-25% of Al; the content of Nb is 24.39 to 25 percent; ti: 24.39%-25%; v: 24.39% to 25%; b, weighing 0-2.44% of each powder, mixing, and carrying out ball milling to obtain mixed alloy powder; (2) the surface of the titanium alloy matrix is pretreated; and (3) the mixed alloy powder is dried and then preset on the surface of a pretreated titanium alloy matrix to form a prefabricated layer, then laser cladding is conducted to obtain the boride reinforced light refractory high-entropy alloy coating, metallurgical bonding is formed between the coating and the matrix, obvious cracks and holes do not exist, the macroscopic morphology is good, the microstructure is mainly a dendritic structure, and the heat conductivity is high. The above shows that an expected effect is achieved. The high-entropy alloy coating obtained by the process improves the strength and wear resistance of the titanium alloy, so that the high-entropy alloy coating can be applied to aerospace, rail transit or marine ships and has a wider application prospect.

The optical module provided by the invention comprises an upper shell, a circuit board, a base, a light receiving part and a light emitting part. According to the invention, the light receiving part and the light emitting part are respectively arranged on different surfaces of the same base; a base mounting part is formed on the surface of the circuit board, and the base is fixed on the surface of the circuit board through the base mounting part. Meanwhile, in order to improve the heat dissipation effect of the base, a protruding part is formed on the upper surface of the base, protrudes towards the upper shell and is in heat conduction connection with the upper shell, and therefore heat is conducted out through the base. In order to dissipate heat generated by the light emitting component more effectively, the light emitting component is arranged on the lower surface of the base. The projection part is formed on the upper surface of the base, the projection part is used as a heat dissipation projection, the heat dissipation effect of the base can be improved, meanwhile, the light emitting component is arranged on the lower surface of the base, and the light receiving component is arranged on the upper surface of the base, so that light receiving and light emitting of multiple paths of signals are realized.

The application requests to protect a tracker and a tracking type three-dimensional scanner, the tracker comprises a main shell, an image acquisition assembly and a mainboard, the main shell is configured as a heat insulation member, the image acquisition assembly comprises a skeleton and a camera, at least part of the skeleton is arranged in the main shell and is connected with the main shell, and the camera is fixedly installed on the skeleton; the main board is installed on the main shell and electrically connected with the camera, and the main board and the framework are isolated through the main shell. In this way, heat isolation between the mainboard and the framework can be achieved, heat generated when the mainboard works cannot be transmitted to the framework, independence of the image acquisition assembly is achieved, thermal deformation caused by temperature rise of the framework can be effectively reduced when the tracker works, the stability of deformation of the framework after being heated is guaranteed, and the tracking accuracy is improved. Therefore, the stability of the position of the framework when the camera is supported is improved.

The present invention discloses a casting mold with rapid and uniform cooling and a manufacturing method thereof. The casting mold cavity is composed of a mold block and a powder metallurgy composite surface layer. The mold block is a porous metal block formed by sintering metal wires, which is machined to obtain a shape that matches the upper mold and the lower mold, and its entire surface is covered with a metal powder composite surface layer; the upper mold and the lower mold are respectively equipped with a cooling fluid inlet pipe and a cooling fluid outlet pipe; the cooling fluid inlet pipe is connected to the cooling fluid inlet, communicates with the mold block, and forms a cooling fluid channel with the cooling fluid outlet pipe. This manufacturing method includes pressing and sintering of a metal block, preparation of a powder metallurgy composite surface layer, and rolling extrusion. The present invention has a simple structure, a convenient manufacturing method, is easy to implement, and has a low production cost; it significantly improves the heat exchange efficiency between the fluid and the mold, realizes rapid solidification of the forming material, and improves production efficiency; and has good market application prospects.

The utility model discloses a turnover embracing column support for accurate positioning and installation of a large-span orthogonal steel truss, which comprises a steel column, an annular steel column hoop is connected with the steel column through high-strength bolts, a triangular steel platform is welded with the annular steel column hoop, steel column brackets are arranged on two sides of the steel column, and the triangular steel platform is connected with the annular steel column hoop through high-strength bolts. The steel column bracket is used for being welded with a large-span orthogonal truss steel beam; steel column hoops are arranged on supports on the two sides of a large-span steel structure, a tripod steel platform is hinged to steel columns, and the tripod steel platform serves as a supporting point of the large-span steel truss and serves as a horse stool for welding a vertical component bracket and the large-span steel truss, so that a welder is helped to keep a welding piece at the correct position and angle, and the welding efficiency is improved. In the welding process of the large-span steel truss, the split heads can prevent a welding piece from displacing due to the influence of gravity or welding heat in the welding process, meanwhile, uniform supporting force can be provided, thermal deformation in the welding process can be reduced, the original shape and size of a steel structure can be kept, and therefore the welding precision and quality are guaranteed.

The invention provides a built-in permanent magnet synchronous motorized spindle optimization design method for a high-precision numerical control machine tool, and aims to solve the problem that a conventional motorized spindle structure cannot adjust an axial preload and a radial external load in real time. The structure of the motorized spindle is optimally designed from three aspects of high-speed ceramic ball mixed bearing materials, axial preload real-time compensation and radial external load real-time compensation. The dynamic characteristics of the rotor system can be improved, and shafting vibration can be actively inhibited.

The invention belongs to the technical field of brazing, and particularly discloses a vacuum brazing method for chromium-zirconium-copper and stainless steel, a brazing joint and application, and the method comprises the following steps: cutting chromium-zirconium-copper and stainless steel base materials into round bars: preparing a Ni coating on the surface of the stainless steel after the stainless steel base material is pretreated; the Ag15CuP brazing filler metal is preset on a to-be-welded interface and placed in a vacuum brazing furnace, vacuumizing and heating are conducted, and then the Ag15CuP brazing filler metal is cooled to the room temperature; and low-temperature stress relief annealing is conducted on a brazed finished product, and furnace cooling is conducted to the room temperature. According to the vacuum brazing method for the chromium-zirconium-copper and the stainless steel, the brazing joint and the application, the novel silver-saving brazing filler metal Ag15CuP is selected as the brazing filler metal, efficient and reliable connection of the chromium-zirconium-copper and the stainless steel is achieved through the synergistic process scheme of stainless steel surface nickel plating modification, gradient temperature control vacuum brazing and low-temperature annealing, and the service life of the chromium-zirconium-copper and the stainless steel is prolonged. The obtained brazed joint is excellent in high-temperature and low-temperature cycle resistance, and can meet the service requirements of key components such as an airspace engine combustion chamber and a heat exchanger.

The application discloses a fast-axis collimating lens and an optical device with the same, and relates to the technical field of laser optical elements. The fast-axis collimating lens comprises a cylindrical base and a composite film layer arranged in sequence along the direction of incident light. The light-in surface of the cylindrical base is a plane, the light-out surface of the cylindrical base is a convex surface, and the radius of curvature of the cylindrical base is greater than 2.5 mm. The composite film layer comprises at least one high-refractive-index transmission film layer, and the refractive index of the high-refractive-index transmission film layer ranges from 1.8 to 2.4. The fast-axis collimating lens is used to realize the collimating function by the synergic design of the film layer and the base structure, the low-convexity base is matched with the high-refractive-index transmission film layer, the processing and integration are facilitated, and the optical and mechanical properties are effectively improved.

The utility model discloses a kind of aluminum alloy ship body welding deformation control mechanisms, including multiple webs, web is welded at the welding gap of first ship plate and second ship plate, web is vertically arranged with the surface of first ship plate and second ship plate, the length direction of web is perpendicular to the welding gap of first ship plate and second ship plate, web bottom is provided with the bottom edge of widening to both sides, and welding groove is spaced along bottom edge;Welding groove is distributed at the contact of bottom edge and ship plate, the cross section of welding groove is arc, the bottom end of welding groove and ship plate smooth transition tangent contact;Connecting fixing mechanism is equipped between adjacent webs;By web auxiliary material positioning welding, increase auxiliary material in the relatively sparse area of original structure, by positioning welding mode welding, keep the structure of original strong force component unchanged, auxiliary increase the overall stress of sparse and weak area, welding is more stable and reliable, not easy to weld deformation.

The utility model relates to the technical field of grinding device cooling, and discloses an inclined spraying type rotating shaft for a grinding wheel, which comprises a first shaft body and a second shaft body, the flow guide channel penetrates through the outer wall of the first shaft body; the included angle between the center line of the liquid outlet of the flow guide channel and the axis of the first shaft body is an acute angle; the second shaft body is used for coaxially installing a grinding wheel. The grinding wheel cooling device has the effect that the grinding wheel with the short length can be cooled conveniently.

The utility model relates to a cold bed waste heat recovery technical field especially relates to a kind of steel rolling cold bed composite heat recovery system. Steel rolling cold bed composite heat recovery system includes heat exchange structure and drive structure. Heat exchange structure includes heat preservation cover, heat exchange component and air door component, heat preservation cover cover is located in the high temperature area of cold bed, heat preservation cover has the installation cavity towards high temperature area, heat exchange component is set in installation cavity, and heat exchange component inside flows through heat exchange medium;At least one opening is provided on heat preservation cover, an air door component is provided at one opening, and the air door component is used to partially cover or entirely cover opening;Drive structure includes support and driving part, support includes stand and rotating frame, heat exchange structure is rotationally arranged on stand by rotating frame, driving part drives rotating frame to rotate relative to stand, to drive heat exchange structure to be located at maintenance position or heat recovery position;Heat recovery position has multiple, heat exchange structure is located at different heat recovery position, and the spacing of heat exchange structure and cold bed in vertical direction is different.

The present invention provides a detonation combustion chamber and a gas turbine, the detonation combustion chamber comprising: a detonation combustion chamber shell, the inner cavity of the detonation combustion chamber shell is coaxially sleeved with a detonation outer ring and a detonation inner ring from the outside to the inside, the detonation outer ring and the detonation inner ring are both tubular structures, a main flow channel annular cavity for detonation combustion is formed between the annular walls of the detonation outer ring and the detonation inner ring, the air inlet end of the main flow channel annular cavity is connected to air, and the air is mixed with the fuel in the cavity for detonation combustion; a first annular cavity is arranged between the detonation combustion chamber shell and the annular wall of the detonation outer ring, and the first annular cavity is used as an outer cooling channel to pass circulating coolant; the inner cavity of the detonation inner ring is provided with an inner cooling channel, and circulating coolant is passed into the inner cooling channel. The structure of the present invention can effectively improve the cooling effect of the detonation combustion chamber, ensure the long-term stable operation of the gas engine, and improve the power adjustment range of the gas turbine, improve the combustion efficiency, and reduce the difficulty of processing.

The application belongs to the technical field of laser additive manufacturing, and particularly relates to an array type laser additive manufacturing method and device, which comprises the following steps: S1, digital model import and layering slicing; S2, scanning path planning and filling setting; S3, array type laser synchronous output control; S4, powder flow and powder feeding path control; S5, according to the width of the additive, the width of single track cladding is adjusted in real time; S6, according to the slice layer material of the additive, the matching material is delivered; S7, S1-S6 are repeated, and layer-by-layer accumulation is performed until the part manufacturing is completed. The application can accurately control the grain size, improve the material microstructure, and improve the mechanical properties; the generation of defects such as thermal cracks and pores is reduced, the stability of the deposition process is ensured; the interlayer bonding is optimized, the quality of multi-layer deposition is ensured; the residual stress is reduced, the size precision, shape stability and fatigue performance of the part are improved; the post-processing requirement is reduced, and the processing cost is reduced.

The utility model discloses a metal product cutting device, and particularly relates to the technical field of metal product processing, which comprises a working table, a moving component arranged in the working table, a vertical plate arranged on one side of the top end of the working table, a metal product fixing component arranged in the vertical plate through a mounting cavity, and a mounting frame arranged at the other end of the working table, an auxiliary assembly is arranged on one side of the mounting frame, a cutter is arranged in the mounting frame, and a chipping storage box is arranged at the top end of the workbench. By arranging the auxiliary assembly, the temperature of a cutting area can be effectively reduced through cooling liquid, the influence of heat on a metal product and the cutter is reduced, the sharpness and durability of the cutter can be maintained, thermal deformation is reduced, and the service life of the cutter is prolonged; and meanwhile, chippings generated in the cutting process are collected through the draught fan, the problem that the chippings are scattered and accumulated in the cutting process is solved, the injury risk possibly encountered when an operator cleans the chippings is avoided, and the safety of a working place is improved.

This invention relates to the field of automotive technology, specifically to a design method and storage medium for reducing thermal deformation of automotive exterior parts. The method includes: establishing a finite element model of the automotive exterior parts and surrounding connectors; setting the cut-off boundary of the connectors and constraining all degrees of freedom of the cut-off boundary; setting installation constraints at the mounting points, connecting the mounting constraints to the connectors, and obtaining the first position of the mounting points; creating temperature conditions; obtaining thermal deformation data of the exterior parts through finite element software analysis, and obtaining the second position of the mounting points; calculating the offset D1 between the second position and the corresponding first position; determining whether the offset D1 is within the design target deviation D2 range; optimizing the position and constraint type of the mounting points so that the offset D1 is within the target deviation D2 range, making the offset of each mounting point evenly distributed, thereby reducing the thermal deformation of automotive exterior parts under high or low temperature environments and improving product quality.

The utility model relates to a degreasing clamp structure which comprises a rectangular supporting frame assembly used for bearing a plurality of products needing to be degreased and a rectangular blocking assembly arranged on the outer wall of a frame assembly in a sleeving mode to completely cover a feeding opening and a discharging opening in the position of a frame body. The blocking assembly can block partial conduction and convection, and a certain amount of fluid can flow through the blocking assembly; partial conduction and convection are blocked through the blocking assembly during degreasing, so that the probability of thermal deformation can be effectively reduced, and the product quality is improved.

The invention discloses laser quenching machining equipment which comprises a workpiece support, a laser quenching head, a laser quenching movement mechanism and a cooling and pressurizing device, the workpiece support is used for supporting a workpiece to be quenched, the laser quenching head is connected to the laser quenching movement mechanism, and the laser quenching movement mechanism can adjust the position of the laser quenching head. The laser quenching head can heat the workpiece, and the cooling and pressurizing device can pressurize and cool the surface of the heated workpiece, so that thermal deformation of the workpiece in the quenching process can be reduced, the quenching quality of the workpiece is further improved, pressurizing and cooling can be performed simultaneously, and the quenching efficiency can be effectively improved.

The utility model discloses a steel laser cutting machining supporting device which comprises a plurality of supporting frames arranged in an arrayed mode, a plurality of installation stations are arranged on the supporting frames in the length direction, the supporting frames are provided with supporting pieces corresponding to the installation stations, the supporting pieces are in a conical shape, the lower ends of the supporting pieces are provided with connecting rods, and the connecting rods are in threaded connection with the installation stations. The first deformation gaps are formed between the adjacent supporting pieces, the deformation resistance of the supporting pieces can be effectively improved through the conical supporting pieces, then thermal deformation is reduced, meanwhile, the first deformation gaps can be used as compensation spaces when the supporting pieces deform, deformation of the supporting frame is reduced, and the service life of the supporting frame is prolonged. Meanwhile, the supporting pieces and the supporting frames can be rapidly disassembled and assembled through threaded connection of the connecting rods so that the supporting pieces can be conveniently and rapidly replaced after thermal deformation, the height of the supporting frames relative to the mounting frame can be adjusted through the arrangement of the compensation mechanisms, and then the flatness of a supporting face formed by the multiple supporting frames is improved; the plate bending is reduced, and the machining precision is improved.

The utility model relates to a kind of differential and vehicle, its shell is fixedly connected by welding with main reduction gear, shell is constituted by two half shells and is respectively installed in the axial both sides end surface of main reduction gear. Fixed part for and half shell welding is equipped on the axial both sides end surface of main reduction gear, and positioning part spaced apart from fixed part welding area in radial direction is also equipped, and positioning part supports half shell when welding. The technical scheme will positioning part and welding area be spaced apart, avoid the influence of positioning accuracy by heat distortion generated in welding process, can effectively improve the assembly accuracy and overall performance of differential, ensure the reliable operation of differential.

The utility model relates to the technical field of long profile cutting, and discloses a fixing assembly for long profile cutting, which comprises a support box, the top of the support box is fixedly connected with a support frame, the inside of the support frame is rotatably connected with a bidirectional threaded rod, and the periphery of the bidirectional threaded rod is in threaded connection with two sliding frames. And a driving assembly is arranged on the left side of the supporting frame, one-way threaded rods are rotationally connected into the two sliding frames, moving frames are fixedly connected and in threaded connection with the interiors of the sliding frames and the peripheries of the one-way threaded rods correspondingly, and rotating rods are rotationally connected into the multiple moving frames correspondingly. According to the long profile fixing device, the supporting frame, the two-way threaded rod, the sliding frame, the motor, the one-way threaded rod, the first rotating hand, the movable frame, the rotating rod, the second rotating hand, the worm, the worm gear, the rotating rod, the limiting rod and the clamping hand are matched with one another, so that when a long profile is fixed, the long profile can be fixed according to the length, width and thickness of the long profile, and the fixing stability is improved.

The utility model discloses a grinding wheel convenient to disassemble and assemble, relates to the technical field of grinding wheels, and aims to solve the technical problem that the heat dissipation mode of the grinding wheel cannot adapt to workpiece production. The grinding wheel comprises a grinding wheel body, fixing disc teeth are installed in the centers of the two sides of the grinding wheel body, concave-convex clamping teeth are arranged at the outer side ends of the fixing disc teeth, and a liquid storage groove is formed in the outer side of the grinding wheel body. The inner end of the liquid storage groove is communicated with a liquid return groove, an outer wrapping liquid storage ring surrounds the periphery of the grinding wheel body, the liquid return groove is communicated with the outer wrapping liquid storage ring, an extrusion head is arranged in the liquid storage groove and comprises an elastic chuck, the elastic chuck is made of elastic materials, and an extrusion sleeve is installed at one end of the elastic chuck. And one-way valve heads are respectively arranged at positions, inside and outside the liquid storage tank, of the extrusion sleeve. Internal circulation cooling can be carried out in the grinding wheel, the temperature of a machining area is reduced, thermal deformation of workpieces is reduced, meanwhile, abrasion and falling speed of grinding particles of the grinding wheel is slowed down, the service life of the grinding wheel is prolonged, and production cost is reduced.

The invention discloses a static pressure workbench thermal deformation self-adaptive regulation and control device and method.The static pressure workbench thermal deformation self-adaptive regulation and control device comprises a static pressure workbench, a regulation and control device and a control device, the static pressure workbench comprises a guide rail and a workbench body installed on the guide rail, and an oil groove is formed in the upper side of the guide rail; the regulation and control device comprises an oil pumping assembly, a first detection piece, a second detection piece and a temperature control assembly, the oil pumping assembly and the oil groove are connected to form a circulation loop, the first detection piece is arranged on the workbench and used for detecting the deformation of the workbench, and the second detection piece and the temperature control assembly are arranged on the circulation loop and used for detecting the deformation of the workbench. The temperature sensors are respectively used for detecting the temperature of oil entering and exiting the oil tank and heating or refrigerating the oil entering the oil tank; the control device is electrically connected with the first detection piece, the second detection piece and the temperature control assembly and used for controlling the temperature control assembly to conduct refrigeration or heating according to the deformation amount and the oil liquid temperature. Thermal deformation of the workbench can be reduced as much as possible, and safe, stable, reliable and high-precision operation of equipment is guaranteed.

The full-laser welding bulging long plate heat exchanger for the high-salt dust working condition comprises a heat exchanger body, and the heat exchanger body comprises fixed supporting plate ground feet, fixed supporting plates, fastening semicircular groove holes, tail supporting stand columns, tail supporting beams, supporting top beams, guide rail beams and supporting rods; the tail supporting stand columns are fixedly arranged on the fixed supporting plate ground feet, the multiple sets of fixed supporting plate ground feet are arranged, the fixed supporting plate is fixedly arranged on the multiple sets of fixed supporting plate ground feet, multiple sets of fastening semicircular groove holes are formed in the two sides of the upper edge of the fixed supporting plate, the tail supporting beams are fixedly arranged on the tail supporting stand columns, and the two sets of guide rail beams are oppositely arranged up and down. According to the heat exchanger, the pressure resistance of the heat exchanger can be effectively improved, in a high-salt flue gas environment, leakage caused by corrosion of the sealing ring is reduced, the welding compactness is improved, blockage caused by high-salt dust residues is reduced, the cleaning difficulty is reduced, the dismounting and cleaning difficulty is reduced, and the labor intensity is reduced.

The invention relates to the technical field of intelligent punching equipment, in particular to a punching system which comprises a punching machine and a lifting mechanism, a buffer mounting groove is formed in the punching machine, a supporting base corresponding to the lifting mechanism is arranged in the buffer mounting groove, and a buffer mechanism capable of conducting damping and noise reduction on the supporting base is arranged in the buffer mounting groove. A cooling mechanism capable of cooling the supporting seat is arranged on the buffer mechanism and is started along with the lifting mechanism after being started, energy is converted, vibration and noise are reduced, the influence on the environment is reduced, environmental protection is facilitated, the impact load borne by the mold is reduced, the loss and the failure rate of the mold are reduced, and the service life of the mold is prolonged; and the equipment maintenance frequency and cost are reduced, the production efficiency is improved, the equipment operation reliability and stability are improved, thermal deformation during part machining is reduced, the quality and machining precision of stamped parts are improved, high-quality development of the stamping technology is promoted, and the product competitiveness is improved.

This invention relates to the field of lithium battery technology, and in particular to a method for preparing a lithium-ion battery cell. The invention discloses a method for preparing a lithium-ion battery cell, comprising: first, preparing a positive electrode slurry containing modified titanium aluminum carbide, graphene oxide, etc., and a negative electrode slurry containing aminated carbon nanotubes, zinc aluminum spinel, etc., both processed according to specific proportions and processes; second, coating the positive and negative electrode slurries separately onto a current collector, and obtaining positive and negative electrode sheets through drying, coating with a coating agent, etc.; next, preparing a composite separator coated with a separator coating agent and curing it; finally, winding the separator in a positive-separator-negative-separator sequence, and obtaining a lithium-ion battery cell through drying, encapsulation, electrolyte injection, formation, etc.