147results about How to "Suitable for use" patented technology

The invention discloses a whitening composition containing oxyresveratrol microcapsules as well as a preparation method and application of the whitening composition, and relates to the technical field of cosmetics. The invention provides a whitening composition. The whitening composition is prepared from the following components in parts by weight: 1 to 20 parts of oxyresveratrol microcapsules, 0.01 to 2 parts of gentiana rigescens extract, 0.1 to 10 parts of verbascos extract and 0.01 to 1 part of lupin extract, wherein the oxidized resveratrol microcapsule comprises a core material, a wall material, carrier oil and an emulsifier, and the weight ratio of the core material to the wall material to the carrier oil to the emulsifier is 1: (1-6): (1-8): (0.05-0.2). According to the oxidized resveratrol micro-capsule with the specific structure, active ingredients can penetrate into the deep layer of skin more deeply through a slow release mechanism, and by matching with other components, visible whitening and repairing effects can be achieved within a short time, and discomfort caused by a powerful whitening agent is reduced.

The high-temperature-rise combustion chamber comprises a sudden expansion diffuser, a cartridge receiver, a combined air atomizing nozzle and a flame tube and can solve the problems that in the prior art, a high-temperature-rise combustion chamber of a small and medium-sized turbojet engine is low in fuel oil supply pressure and fuel oil flow is increased, so that fuel oil atomization is poor, the combustion efficiency is low, and the combustion efficiency is low. And the service life of the flame tube is difficult to meet the requirement due to great reduction of the cooling air quantity and increase of the cooling air temperature. An overall layout form of fuel oil radial grading and axial grading is innovatively adopted, and swirlers used for assisting fuel oil atomization all adopt a beveling hole mode; space compound angles are innovatively adopted for cooling holes in the flame tube, and the overall layout form of different sizes and different hole pitches is adopted in different areas. Fuel oil atomization quality and efficient combustion under various working conditions can be improved, the service life of the flame tube is prolonged, and meanwhile the machining process of the swirler is simplified due to the fact that the swirler adopts an inclined hole mode.

The invention relates to the technical field of high-speed cable shielding materials, and discloses a manufacturing method of rolled copper foil for high-speed cable shielding. The method comprises the following steps: preparing a copper plate; performing multi-pass cold rolling on the copper plate to form an elongated grain structure oriented along the rolling direction; performing controlled annealing on the cold-rolled copper foil to recover plasticity and inhibit complete recrystallization; the target thickness is obtained through finish rolling; carrying out finishing rolling on at least one surface of the copper foil by adopting a mirror surface working roller so as to reduce the surface roughness; and performing surface smoothing or passivating treatment to inhibit oxidation and performance degradation. Therefore, the obtained rolled copper foil has good ductility, structural stability and high-frequency performance.

The invention provides an intelligent accompanying shopping cart for old people, and relates to the technical field of artificial intelligence robots. The system specifically comprises a shopping cart for old people, and a high-definition camera, an upper computer, a lower computer, a power supply and a motor which are arranged on the shopping cart. The intelligent shopping cart comprehensively adopts a computer vision technology, a Bluetooth positioning technology and an artificial intelligence algorithm, not only has the functions of loading, bearing and transporting of a traditional shopping cart, but also can automatically accompany old people to walk and automatically avoid obstacles, does not need to be pushed and pulled by the old people, has a guiding function, can guide the old people home without getting lost, and is convenient to use. The multifunctional shopping cart has the advantages that the multifunctional shopping cart is simple in structure and convenient to use, has the safety anti-theft function, prevents the shopping cart or articles in the cart from being stolen, further has the auxiliary functions of being chargeable, foldable, capable of being switched to be pushed and pulled manually, capable of serving as a rest seat and the like, provides convenient, safe and comfortable going-out and shopping experience for old people, is an innovative product for scientific old people aiding, and has high practical value and social significance.

The invention discloses an airway foreign matter obstruction first-aid negative pressure suction device in the technical field of medical instruments, which comprises a first driving box and a second driving box, a winch assembly is arranged in the first driving box, a first twisted rope is arranged between the winch assembly and the second driving box, a transmission assembly is arranged in the second driving box, and the first twisted rope is rotatably connected with the transmission assembly. The side, away from the first twisted rope, of the transmission assembly is provided with a hammering assembly used for hammering the chest and abdomen, one side of the first driving box is fixedly connected with a face first-aid box, a second twisted rope is arranged between the face first-aid box and the winch assembly, and the end, away from the winch assembly, of the second twisted rope is fixedly connected with a hook. A telescopic box assembly is arranged on the side, close to the first driving box, in the face first-aid box, a hanging hole is fixedly connected to the telescopic box assembly, and the hook is fixedly connected with the hanging hole. The negative pressure suction device is automatically operated and worn, and the hammering assembly is combined to conduct auxiliary impact on the chest and abdomen, so that the effect that a person sucks the foreign matter in the airway in a self-rescue mode is achieved.

The utility model discloses a multifunctional embroidery machine, and relates to the technical field of embroidery machines, the multifunctional embroidery machine comprises a multi-specification bead embroidery device and a multi-sequin embroidery device, the multi-specification bead embroidery device comprises a plurality of bead falling and feeding units, and the bead falling and feeding units are distributed along the same arc at an angle; the multi-sequin embroidering device is connected with the multi-specification bead embroidering device through the position adjusting mechanism, and the position adjusting mechanism is used for driving the multi-sequin embroidering device to translate, so that sequins can be conveyed to the positions below different needle rods. According to the embroidery machine, the sequins and the embroidery beads can be conveyed to the positions below different embroidery needles for simultaneous embroidery, and the working efficiency is high.

This invention discloses a manufacturing process for composite 7-series aluminum alloy sheets. The composite 7-series aluminum alloy sheets are formed by laminating and rolling multiple layers of 7-series aluminum alloy sheets and multiple layers of 1-series aluminum alloy connecting plates. The 7-series aluminum alloy sheets are composed of the following components by weight percentage: Si: ≤0.22%, Cr: ≤0.23%, Fe: ≤0.35%, Cu: 2.0-3.5%, Mg: 3.5-4.5%, Zn: 6.5-10.0%, Ti: 0.015-0.2%, Zr: 0.05-0.15%, rare earth cerium alloy: 0.015-0.05%, total impurities ≤0.1%, and the remainder being aluminum. This invention uses a lamination method to roll multiple layers of 7-series aluminum alloy sheets and multiple layers of 1-series aluminum alloy connecting plates, which effectively improves plasticity, toughness, and strength. Compared with existing single 7-series materials, it has higher material strength, better impact resistance and weldability, can adapt to corrosion resistance in complex environments, and extends service life.

The utility model discloses a kind of underground fireproof isolation material filling equipment.Underground fireproof isolation material filling equipment, comprising: support frame, rotating support is installed on the support frame, injection pipe is rotatably installed on the rotating support, the tail end of the injection pipe is provided with material connecting port, the bottom of the injection pipe is obliquely provided with high-pressure gas inlet, arc-shaped handle is installed on the injection pipe, booster pump is installed on the rotating support, and hose is installed between the booster pump and the high-pressure gas inlet.The underground fireproof isolation material filling equipment provided by the utility model is provided with support frame, rotating support, injection pipe, booster pump and arc-shaped handle, the booster pump is installed on the rotating support, the fireproof material can be conveniently filled on working face, and the device is simple and compact in overall structure, suitable for use in narrow area.

The application discloses an industrial cable surface defect detection device, which comprises an industrial cable and a torsion detection support matched and installed outside the industrial cable, and cable storage racks are matched and placed at the left and right ends of the torsion detection support; the torsion detection support comprises a rectangular frame and a first rotating assembly fixedly installed outside the rectangular frame. The application provides an industrial cable surface defect detection device, through the arrangement of a cable surface detection assembly, after the torsion test of the industrial cable, the wear condition of the industrial cable surface can be detected through the cable surface detection assembly, and the wear condition of the industrial cable surface can be fed back in time; through the arrangement of the cable surface detection assembly, the industrial cable surface defects can also be detected, and since two detectors and the first rotating assembly are arranged, the industrial cable surface can be detected in all directions, and the industrial cable surface defect detection device is suitable for use.

The invention belongs to the technical field of electrolytes, and particularly relates to an electrolyte suitable for low temperature, a preparation method and a lithium battery, the electrolyte comprises a solvent, a lithium source, a film-forming additive and surface modified magnetic particles; according to the invention, the magnetic particles are added in the electrolyte, then the permanent magnet on the turntable rotates to form a variable magnetic field, due to the change of the magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field, and due to the continuous change of the external magnetic field, the magnetic domains in the magnetic particles in the electrolyte in the battery pack can change along with the magnetic field. The magnetic particles are uniformly distributed in the battery pack, so that the electrolyte can be continuously and uniformly heated, and even if the temperature of the external environment is relatively low, the magnetic domains in the magnetic particles continuously move, the magnetic hysteresis loss phenomenon occurs in the movement process, and the temperature of the magnetic particles is further increased; and therefore, the low-temperature applicability of the electrolyte is improved.

This invention discloses a path planning method for a snake robot based on fuzzy collision constraints and helical trajectory, comprising the following steps: S1, establishing an overall path model using the Archimedes' spiral equation; S2, obtaining the complete motion trajectory of the multi-node system through solving the state of the first node and recursion between nodes; S3, using a fuzzy collision risk function for flexible judgment to avoid path interference between the first segment and subsequent segments; S4, using the pitch as the optimization variable and employing a simulated annealing algorithm to find the optimal path parameters to ensure safe entry into the target area. The trajectory generated by this invention is smooth and continuous, can actively predict collisions, and can quantitatively optimize path parameters, making it particularly suitable for scenarios with high requirements for motion smoothness and safety, such as narrow pipe inspection, complex terrain exploration, space-constrained situations, or the need to maneuver into specific turning spaces.

The utility model relates to blood perfusion ware production transfer related technical field discloses a blood perfusion ware production transfer device with prevent shaking structure, including mutually pasting lower transfer box and upper transfer box, prevent shaking protection subassembly including fixed in the fixed baffle of lower transfer box and upper transfer box inside, the buffer rubber pad of fixed in lower transfer box bottom and upper transfer box top buffer rubber seat. This blood perfusion ware production transfer device with prevent shaking structure, it is convenient to batch transfer to blood perfusion ware, and the upper and lower two ends of blood perfusion ware are clamped in the fixed hole in the middle part of buffer rubber seat respectively, while the side surface of blood perfusion ware is pasted on buffer rubber pad, and the lower transfer box and upper transfer box mutually pasting, can play the all -round protection function to blood perfusion ware, prevent shaking and knock, and the overall structure design is simple to use.

The utility model belongs to the technical field of crane related equipment, and particularly relates to an integrated crane overhead air conditioner which comprises an air conditioner shell and a top plate, a middle partition plate is fixedly connected to the inner side of the air conditioner shell, and two side plates are fixedly connected to the side, located on the middle partition plate, of the air conditioner shell. The air conditioner shell forms three installation areas through two side plates, and an air compressor, a refrigerant storage box and a condenser are installed in the three installation areas respectively. The air conditioner is detachably assembled on the top plate of the crane cab and is convenient to disassemble and assemble and good in assembling stability, the air inlet filtering assembly is arranged on one side of the air conditioner shell, the air filtering effect can be achieved, external dust is prevented from entering the air conditioner, meanwhile, all the assemblies in the air conditioner are reasonably arranged, and the air conditioner is convenient to assemble and disassemble. The crane air conditioner is high in density and small in occupied space, and solves the problems that an existing crane air conditioner is large in occupied space, inconvenient to disassemble and assemble and lack of an effective filtering function.

Provided are a crystalline form of a pyrrole amide compound, a preparation method therefor and a use thereof, and also provided is pharmaceutical composition comprising the crystalline form. In particular, the crystalline form or the pharmaceutical composition can be used to treat and prevent diseases such as hyperaldosteronism, diabetic nephropathy, hypertension, heart failure (comprising chronic heart failure, etc.), sequelae of myocardial infarction, liver cirrhosis, renal failure, and stroke.

According to a nonaqueous electrolytic solution containing: (I) at least one selected from the group consisting of a compound represented by General Formula (1) described in the specification (for example, a compound represented by the following Formula (1a)) and a compound represented by General Formula (2) (for example, a compound represented by the following Formula (2a)); (II) a solute; and (III) a nonaqueous organic solvent, a nonaqueous electrolytic solution and a nonaqueous electrolytic solution battery having a low initial resistance value, and a compound that can be suitably used in the above nonaqueous electrolytic solution can be provided;

The utility model discloses a wind tunnel rack, and relates to the technical field of automobile part test and aerodynamic measurement. The device comprises an air pipe, a conical cover is fixedly arranged at one end of the air pipe, a pipe head is fixedly arranged at the other end of the air pipe, an air supply assembly is arranged at one end of the conical cover, and testing assemblies are arranged on the air pipe and the pipe head. The air supply assembly comprises an air blower; an air valve is assembled at an air suction opening of the air blower; according to the utility model, the whole device is composed of the fan module, the control module, the sensor module, the air duct system and the test cavity, and all the modules are connected through standard interfaces, so that rapid assembly, disassembly and maintenance are facilitated, and the device is suitable for multi-scene deployment; the rotating speed of the air blower is accurately adjusted through the frequency converter, and a full-range speed wind field from low speed to high speed can be simulated in combination with a pressure difference conversion algorithm, so that the test is closer to the actual driving working condition, and the reference value of data engineering is improved.

The utility model discloses a room temperature collector device for heat supply, which relates to the field of collectors and comprises a device machine box, a display panel is embedded in the front end of the device machine box, a mounting back plate is fixedly mounted at the rear end of the device machine box, and two combined mounting plates are integrally formed at the lower end of the mounting back plate. And a connecting outer frame is fixedly mounted on the outer side of the device machine box. According to the utility model, the connecting outer frame directly sleeves the outer side of the socket, and then the socket positioning frame and the lifting screw rod are utilized to fixedly connect the socket, so that the connecting outer frame forms a fixed protection installation structure for the device case and the socket, thereby not only being more convenient for connection and use of the device and the socket, but also being safer for use; the angles of the extension connecting rod and the collector module are adjusted through the rotary movement of the rotary mounting block around the interior of the mounting seat, and the collector module is adjusted in different directions and angles in cooperation with the sliding of the sliding clamping block around the connecting outer frame and the guide rail strip, so that the room temperature collection range is enlarged.

A micro bubble generation method and generation device. The micro bubble generation method includes: passing a gas through a microporous material, the gas forming micro bubbles at an interface between the microporous material and liquid, the bubbles being adsorbed on the surface of the microporous material; impacting the micro bubbles adsorbed on the microporous material by relative motion of the microporous material and the liquid, such that the micro bubbles detach from the microporous material and enter into the liquid. The micro bubble generation device includes a gas accommodating chamber (1) disposed below the Liquid surface, and a gas transmission pipeline (3). A microporous material layer (2) is arranged around the periphery of the gas accommodating chamber (1). The gas in the gas accommodating chamber (1) passes through the microporous material layer (2) by gas pressure to form micro bubbles on the outer surface thereof. The microporous material layer (2) moves and / or the liquid outside the microporous material layer (2) moves to cut the micro bubbles.

The invention belongs to the technical field of enzyme baths, and particularly relates to a compound conditioning type enzyme bath composition and a fermentation method thereof.The compound conditioning type enzyme bath composition is prepared from cedarwood powder, folium artemisiae argyi powder, safflower powder, dried ginger powder, radix angelicae sinensis powder, radix salviae miltiorrhizae powder, herba leonuri powder, rhizoma chuanxiong powder, radix saposhnikoviae powder, garden balsam stem powder, natural active enzymes, mineral substances, nutrient substances and water; the health care product is prepared from the cedarwood powder, the folium artemisiae argyi powder, the safflower powder, the dried ginger powder, the radix angelicae sinensis powder, the radix salviae miltiorrhizae powder, the herba leonuri powder, the rhizoma chuanxiong powder, the radix saposhnikoviae powder, the phryma leptostachya powder, the natural active enzyme, the mineral substances and the nutrient substances, can comprehensively condition the body, promote blood circulation and relieve fatigue, and has positive influence on body health.

The invention provides a rapid detection method for high-altitude chemical clouds, which comprises the following steps: sampling by using a small unmanned aerial vehicle carrying a solid-phase microextraction device, taking back a sample, and detecting by using a surface acoustic wave gas chromatograph. According to the method, rapid detection is carried out through GC-SAW, the separation analysis time of a sample is shorter than 20 s, and the complete analysis time of a single sample is shorter than or equal to 90 s. According to the design of the technical scheme, the particularity and requirements of application scenes are considered, the surface acoustic wave gas chromatograph is fully optimized, the sampling and detection speed is high, multiple substance types can be recognized, and the selected SPME extraction head has hydrophobicity and does not enrich water molecules; the plant smoke is mainly particulate matters and cannot be enriched by the SPME extraction head, so that the influence of water vapor and the plant smoke can be avoided, the single SPME can be selected to be less than 40g, and the requirement on low load of the unmanned aerial vehicle is met. A large number of experiments prove that the target component can be normally detected.

A laminate having a polypropylene resin film and an inorganic oxide layer, wherein the laminate is characterized in that the water vapor transmission rate is less than 3.0 g / m2 / day, the peel strength of the inorganic oxide layer is 0.7 N / 15 mm or more, and when the stress at 121°C in the main orientation axis direction as measured by thermomechanical analysis (TMA) is denoted by SF121°C and the stress at 145°C in the main orientation axis direction is denoted by SF145°C, said laminate satisfies SF145°C - SF121°C ≤ 2.50 MPa. The present invention provides a laminate that is suitable for use in applications in which processing and use in a high-temperature environment are required and there is a need to reduce the effects of moisture.

The utility model discloses a foldable chair for a yacht, which belongs to the technical field of ship furniture and comprises a seat plate, a soft cushion is arranged at the top of the seat plate, rotating seats are fixedly connected to two sides of the bottom of the seat plate, outer supporting legs are rotatably connected between the two rotating seats, and inner supporting legs are arranged on the inner sides of the outer supporting legs. An outer supporting leg and an inner supporting leg are arranged on the base plate, a rotating pin is arranged between the outer supporting leg and the inner supporting leg, the inner supporting leg is connected with the outer supporting leg in a rotating mode through the rotating pin, two sets of locking mechanisms are further arranged at the bottom of the base plate, and positioning holes are formed in the two sides of the inner supporting leg. The chair can be quickly folded into a flat shape, and the locking mechanism is matched with the positioning hole, so that the chair is not easy to scatter after being folded, and the storage space occupation of the yacht is reduced.

The invention relates to the technical field of mice, in particular to an external foldable mouse. Comprising a bottom plate, the upper end of the bottom plate is fixedly connected with a shell in a sealed mode, a power source and a control circuit are fixed in the shell, the shell is sleeved with a cover in a sealed mode, the cover can move upwards after pressure in the shell rises, an inflation and deflation unit is installed at the rear end of the bottom plate and communicates with the interior of the shell, a plurality of protruding blocks are machined at the front end of the bottom plate, and round cavities are formed in the protruding blocks. The multiple circular cavities are concentrically arranged, first rotating shafts concentric with the circular cavities are rotationally and hermetically connected to the protruding blocks, the first rotating shafts are connected with the protruding blocks through torsional springs, rotating frames are fixed to the first rotating shafts, and the rotating frames are fixedly connected with the upper cover. By inflating the shell, the cover body can move upwards and drive the upper cover to rotate around the first rotating shaft. After air in the shell is pumped out, the body can move upwards, meanwhile, the upper cover rotates towards the bottom plate around the first rotating shaft under the elastic action of the torsional spring, and the mouse can be folded.

The utility model discloses a kind of spliced exhibition mechanism and device, to solve the single display effect of current exhibition device, assembly is inconvenient and the cost is too high in the process of display, promotion of small and medium-sized exhibitors. The utility model includes horizontal keel, longitudinal keel and keel connecting piece, the keel connecting piece includes horizontal top plate, bottom plate and vertical side plate, corresponding longitudinal keel connecting port is provided on the top plate and bottom plate, side plate clamping groove, first protrusion matched with the side plate clamping groove is provided on the side plate, the top plate is clamped with the side plate and the end of side plate forms horizontal keel connecting port. Each exhibition module can be spliced into a whole by the above mechanism. The utility model has the beneficial effects that: reduce floor area, improve exhibit display effect, install conveniently and quickly.

This invention discloses a high-pressure forming apparatus and method for graphene high-speed steel bearings. The apparatus includes a human-machine interface system, an automatic loading and unloading system, a high-pressure forming system, and a control system. The method is as follows: First, the high-speed steel bearing is placed on a vibrating conveyor belt and transported to a bearing mounting base. After a proximity switch sensor detects the high-speed steel bearing, the main controller controls a magnetic mechanical gripper to remove the high-speed steel bearing from the bearing mounting base and place it between high-pressure forming molds. Then, a lower layer of graphite material is laid on the base of the high-pressure forming mold, and the high-speed steel bearing is placed in the inner ring of the mold. The upper cover of the high-pressure forming mold is lowered to cover the bearing, and a plug is placed in the inner ring of the upper cover of the high-pressure forming mold before laying the upper layer of graphite material. Finally, the high-pressure forming system is activated, and the high-pressure forming ejector pin performs double-sided forming on the upper and lower end faces of the high-speed steel bearing. This invention achieves high-pressure forming of graphite material for graphene high-speed steel bearings, with a high degree of automation, improving production efficiency and product quality.

This invention relates to a polyester with antibacterial and antiviral functions, its preparation method, and its application. The polyester with antibacterial and antiviral functions is a cationic polymer guanidine salt-supported antibacterial and antiviral polyester. The preparation method includes the following steps: modifying the cationic polymer guanidine salt with a compound containing multiple functional groups to obtain a reactive antibacterial and antiviral adjuvant; during the polymerization of the polyester, adding the reactive antibacterial and antiviral adjuvant, terephthalic acid, diol, and catalyst in a single batch to a polyester reactor to obtain an antibacterial and antiviral random copolyester; or, copolymerizing the reactive antibacterial and antiviral adjuvant with diethyl terephthalate (BHET) to obtain an antibacterial and antiviral copolyester. Compared with the prior art, the polyester obtained by this invention exhibits no dissolution of the antibacterial and antiviral components, uniform dispersion, excellent durability, and good color value in the resulting fiber product.

This utility model relates to the field of feeding machine technology, and in particular to a blocking and rewinding mechanism for feeding coiled materials such as lithium battery aluminum foil. It includes a blocking terminal block that can swing up and down, a pulling steel wire rope that can drive the blocking terminal block to swing up and down, and a rewinding and rewinding control assembly that can rewind and release the pulling steel wire rope. The front end of the pulling steel wire rope is connected to one side of the blocking terminal block to drive the blocking terminal block to swing. The rewinding and rewinding control assembly includes a traction sleeve that allows the right end portion of the pulling steel wire rope to pass through and extends forward and backward, and can move back and forth. The rear end of the pulling steel wire rope is located behind the traction sleeve and is connected to an anti-rotation assembly to prevent the pulling steel wire rope from rotating during the rewinding and rewinding process. The anti-rotation assembly is supported behind the traction sleeve, making it more flexible and convenient to operate.

The embodiment of the application discloses a function adjusting method, the method comprises: acquiring first radar data, and starting a fine adjustment function when a duration of a first gesture indicated by the first radar data exceeds a first threshold value, and fine adjustment of a target function can be performed based on a second gesture indicated by second radar data. The application uses the duration of the gesture as the basis for whether to start the fine adjustment mode, so that the gesture category used by the independent gesture function and the wake-up gesture can be overlapped, and the gesture category required when the gesture implemented function is adjusted can be reduced.

This invention provides a mine-use localized fire extinguishing inert gas fire extinguisher, relating to the field of phase change equipment technology for fire extinguishing materials. It includes a housing assembly, a feeding mechanism, an air intake and exhaust assembly, a heat exchange assembly, an external support component, a connecting support component, a drive motor, a material box assembly, and a support base. This invention connects the high-pressure fluid inlet of the ejector to the mine's compressed air system. Utilizing the jet principle, high-speed fluid from the compressed air system is introduced into the ejector. The fluid is mixed and accelerated through the low-pressure fluid inlet of the ejector, introducing air from the mine roadway. Therefore, the gas ejected by the ejector includes air from the mine's compressed air system and air from the mine roadway, serving as a heat source for phase change heat transfer. The gas ejected by the ejector is injected into the interior of the heat exchange tube. Since the heat exchange tube rotates continuously, heat exchange gas is introduced sequentially. After one rotation, the heat exchange tube passes through the ejector's outlet again, injecting new gas. The existing heat-exchanged gas flows out through the exhaust pipe.

This invention discloses a high-performance meta-aramid / mica composite insulating paper and its preparation method. The paper is formed by wet papermaking and hot pressing of a mixed slurry composed of meta-aramid chopped fibers, meta-aramid precipitated fibers, and mica flakes. The composite insulating paper has a thermal decomposition temperature ≥425℃, tensile strength ≥52N / mm, tear strength ≥2.2N / mm, and voltage breakdown strength ≥13.8kV / mm. The mass ratio of chopped fibers to precipitated fibers is (50~80):(50~20). The amount of mica flakes added is 5wt%~10wt% of the total mass of the two aramid fibers. The hot pressing adopts a segmented hot pressing process of "low-temperature pre-pressing - medium-temperature strengthening - high-temperature setting". By controlling the key parameters of the precipitated fibers and optimizing the ratio of chopped fibers to precipitated fibers and the proportion of mica flakes added, the paper is prepared through processes such as raw material pretreatment, graded mixing and dissociation, wet papermaking, and segmented hot pressing. Advantages: Through multi-parameter coordinated control and process optimization, the technical bottlenecks such as the mechanical and insulation properties of existing aramid composite insulating paper and insufficient thermal stability have been solved.