21results about How to "Fast decay" patented technology

The invention discloses a laser-assisted CVD (chemical vapor deposition) diamond polishing device, which belongs to the technical field of machining and comprises a rotary table connected with a first driving component, and the first driving component drives the rotary table to rotate around the axis of the rotary table; three adsorption tables are arranged at the top of the rotary table in the circumferential direction around the axis of the rotary table at equal intervals, a second driving assembly is arranged on the rotary table, and the second driving assembly drives the adsorption tables to rotate around the axes of the adsorption tables; a clamping mechanism, a laser polishing mechanism and a grinding mechanism are arranged on one side of the rotary table, and the clamping mechanism, the grinding mechanism and the laser polishing mechanism are arranged in one-to-one correspondence with the three adsorption tables correspondingly. The clamping mechanism is used for taking and placing workpieces, the laser polishing mechanism is used for moving along the radial direction of the corresponding adsorption table to roughly grind the workpieces, and the grinding mechanism is used for moving along the radial direction of the corresponding adsorption table to finely polish the workpieces. Mechanical grinding and laser polishing are combined, thinning and polishing work of a workpiece is rapidly achieved, and the machining efficiency is improved; and meanwhile, rapid circulation of the workpieces can be achieved.

The utility model discloses an air floating platform for optical lens detection, and belongs to the technical field of precision optical detection and air floating supporting, the air floating platform comprises a base, an air floating platform substrate is arranged above the base, a plurality of groups of air floating holes are formed in the air floating platform substrate, and pressure sensing valves are arranged in the plurality of groups of air floating holes; laser interferometer adjusting mechanisms are arranged on the periphery of the air floating platform base plate, the four laser interferometer adjusting mechanisms are slidably connected with the periphery of the air floating platform base plate, a honeycomb matrix air cushion array is arranged in the base, four supporting adjusting mechanisms are arranged at the bottom of the base, and each supporting adjusting mechanism comprises a supporting frame. A threaded rotating shaft is rotationally connected into the supporting frame. When the device is used, the overall balance of the base can be better adjusted when the device is used or after the position of the device is changed, other tools are not needed during adjustment, the overall balance is accurate through the thread adjustment mode, and the practicability of the device is improved.

The utility model belongs to the field of security and protection monitoring, and particularly relates to a security and protection monitoring vertical rod support lifting structure which comprises a monitoring body, a lifting rod and a vertical rod body, and a through hole is formed in the top end of the vertical rod body. A lifting assembly is arranged in the vertical rod body and comprises a gear, the rear end of the gear is fixedly connected with a driving motor, the bottom end of the driving motor is fixedly connected to a supporting plate, the supporting plate is fixedly connected to the inner wall of the vertical rod body, and a plurality of grooves are formed in the right side of the gear. A round block is fixedly connected to the bottom end of the lifting rod, the bottom end of the round block makes contact with the inner wall of the vertical rod body, a clamping assembly is arranged at the top end of the vertical rod body and comprises two sets of clamping blocks, and the bottom ends of the clamping blocks are rotationally connected to a fixing block; and through the structural design of the lifting assembly, the function of quickly ascending and descending the lifting rod is achieved.

This invention belongs to the field of electromagnetic wave absorbing materials technology, and specifically discloses a hollow spherical Ti3C2T x @Molybdenum disulfide@cobalt / carbon composite materials, their preparation methods, and applications. The preparation method includes the following steps: reacting formaldehyde with melamine to prepare melamine-formaldehyde resin particles, ultrasonically dispersing them in water, and then adding Ti3C2T. x Suspension, stirred, melamine-formaldehyde resin particles with Ti3C2T x Self-assembly yields the core-shell material Ti3C2T x @MF; Ti3C2T x @MF, molybdenum source, and sulfur source are dispersed in water in a certain proportion and subjected to a hydrothermal reaction. The hydrothermal reaction product is washed and dried to obtain hollow spherical Ti3C2T x @Molybdenum disulfide composite material HTM; A dimethylimidazole alcohol solution is slowly added to a mixed alcohol solution of HTM and a cobalt source, stirred for a set time, and then allowed to stand for a set time to obtain HTM@ZIF67; HTM@ZIF67 is then pyrolyzed in an inert atmosphere to obtain hollow spherical Ti3C2T. x @Molybdenum disulfide@cobalt / carbon composite material. This material combination can effectively promote the attenuation of electromagnetic waves and reduce the material's filler content.

The application discloses a FeCoNiMnAl high-entropy alloy modified graphene foam composite material and a preparation method thereof, wherein the preparation method comprises the following steps: S1, weighing and powdering Fe, Co, Ni, Mn and Al metal element powders according to a molar ratio of 1:1:1:0.5:0.5, ball milling the weighed and powdered metal element powders in a ball milling tank under a protective atmosphere, and uniformly mixing the metal element powders; S2, sieving the uniformly mixed powders to obtain high-entropy powders; S3, uniformly mixing the high-entropy powders and graphene in a magnetic stirrer according to a weight ratio of (1-4):1, and the mixing medium is alcohol; and S4, taking out the obtained mixed powders, and performing suction filtration, drying and sieving to obtain the graphene foam composite material. The electromagnetic wave absorbing material prepared from the FeCoNiMnAl high-entropy alloy modified graphene foam composite material can solve the problem of "impedance mismatch".

The solid waste treatment device comprises a shell and a tank body, the tank body is welded to the right side of the shell, a partition plate is transversely welded to the center of the interior of the shell, a notch is formed in the right side of the interior of the partition plate, and a transverse groove is transversely formed in the left side of the interior of the partition plate; a lead screw is movably connected between the two sides of the interior of the transverse groove, and the exterior of the lead screw is sleeved with a sleeve block. According to the solid waste treatment device, a push plate is welded to the top of a sleeve block, a metal bottle body is put into the push plate from the top of the rear portion of a tank body, an air cylinder is started, a pressing plate sinks to extrude a metal object along a steel plate and a sliding way in a shell, after flattening is conducted, a motor is started, a lead screw is rotated in a transverse groove, and then the sleeve block is horizontally moved; and the push plate is taken out from the groove in the inner wall of the shell, the extruded materials are pushed to fall onto the inclined table from the notch in the right side of the partition plate so as to be taken out from the discharge port, and the problem that the metal materials are inconvenient to treat is solved.

This application belongs to the technical field of material handling platform, and discloses a workstation material handling platform, including a worktable. Two sets of slide rails are installed above the worktable. Multiple sets of arc-shaped rollers are respectively arranged on both sides of the upper surface of the worktable on the slide rails, forming a circulation route with the slide rails. A workpiece rack is arranged above the worktable, and a lifting plate is placed on the inner wall of the workpiece rack. Multiple sets of guide wheels are arranged below the workpiece rack, which are tactilely connected to the slide rails and ball bearings. This application uses the slide rails, arc-shaped ball bearings, and guide wheels in conjunction with a circulation assembly to form a circulation conveying structure, realizing continuous cyclical movement of the workpiece rack between various workstations. The lifting plate inside the workpiece rack cooperates with a lifting mechanism to realize layered, piece-by-piece lifting and staggered descent of multiple workpieces for unloading. This allows the robotic arm to pick up unprocessed workpieces or place processed workpieces at designated positions without requiring complex vision algorithms to enable the robotic arm to pick up accumulated workpieces.

The present invention provides an integrated bridge wet joint template device, which relates to the technical field of bridge engineering equipment; it includes: a steel template, including a top template, and the left and right sides of the top template have web side templates; steel purlins, and multiple steel purlins are fixedly arranged on the inner side walls of the top template and the web side template; a steel pipe support frame, which is fixedly connected with multiple steel purlins; the lower end of the template tie rod is fixedly connected with the top template, and the upper end of the template tie rod has an external thread; a hollow steel pipe, which runs through the top template, and the bottom of the hollow steel pipe is fixedly connected with the top template; a reaction square pipe, which is fixedly arranged at the bottom of the steel pipe support frame; a jack demoulding device, including a supporting square pipe, a jack, a connecting rod and a supporting foot; two jack demoulding devices are located on the front and rear sides of the steel pipe support frame. The advantages of the present invention are: the steel template is quickly placed below the wet joint, and after the position of the wet joint is poured with concrete, the steel template is separated from the wet joint by the jack demoulding device, thereby improving the installation efficiency.

The utility model provides a P-shaped steel pipe forming device which comprises a supporting table, and a conveying assembly used for conveying forming materials and a supporting frame connected with the tail end of the conveying assembly are arranged on the upper surface of the supporting table. A forming assembly used for conducting punch forming on a forming material and a cutting assembly used for cutting a formed steel pipe are arranged below the supporting frame, and a controller is further arranged on the upper surface of the supporting table. According to the P-shaped steel pipe forming device, the electric push rod drives the clamping plate to move, so that the position of the clamping plate can be flexibly adjusted to adapt to forming materials of different specifications and sizes, the applicability and flexibility of the device are improved through the design, various production requirements can be met, and the production efficiency is improved. And the clamping plate or the equipment does not need to be manually replaced or adjusted, so that the production preparation time of the device is shortened, and the overall production efficiency is improved.

Provided is a urate oxidase preparation. The urate oxidase preparation includes polyethylene glycol-modified urate oxidase as an active ingredient and a buffer reagent as an excipient.

An auxiliary support device of a pneumatic tool for tire disassembly and assembly comprises a bidirectional self-locking mechanism, a fixed cylinder is connected to the inner wall of the bidirectional self-locking mechanism, an elastic piece is attached to the inner wall of the fixed cylinder, elbows are arranged at the two ends of the elastic piece, and the elastic piece rotates or is locked along the inner wall of the fixed cylinder; the first end of the driving rotating shaft is rotationally connected outside the bidirectional self-locking mechanism, and the second end is in contact with the interior of the elbow; the first end of the driven cylinder is rotationally connected to the inner wall of the bidirectional self-locking mechanism, and the second end is in contact with the outside of the elbow; a bracket is arranged at the upper end of the bidirectional self-locking mechanism; the moving mechanism is connected to the lower portion of the driven cylinder, and the driven cylinder rotates to drive the moving mechanism to move up and down. A bottom support; the bottom face support is connected to the lower portion of the moving mechanism. The bidirectional self-locking function of the device after the device stops at will is achieved through the bidirectional self-locking mechanism, hand-cranking force is transmitted to the movable lead screw through the pair of gear transmission mechanisms, ascending or descending of the device is achieved, stability is good, and labor intensity is low.

The application belongs to the technical field of inorganic nano functional materials, and discloses a worm-like / whisker-like composite beta-SiC nano material for wave absorption and a preparation method thereof. Amorphous silicon dioxide and carbon black are used as raw materials, a platinum-rhodium metal mixture is used as a catalyst, and high-temperature reaction is carried out at 2000-2200 DEG C under inert gas protection for 5-20 hours. The process is controllable. By accurately controlling the reaction time and utilizing the evolution of the VSL growth mechanism, the composite beta-SiC nano material with adjustable worm-like and whisker-like proportion can be prepared. The prepared composite nano material has good impedance matching and strong dielectric loss capacity, and has moderate resistivity. In particular, it is especially suitable as a wave absorption material for a wave absorption coating with high requirements for weather resistance and temperature resistance, can realize wide-band, strong-absorption radar stealth effect, and has important application value in the fields of aerospace and high-end electronic equipment electromagnetic compatibility.

The application discloses a kind of fault current limiter, fault current limiting system and fault current limiting method, it is related to power system fault protection technical field, including: iron core, first AC coil, second AC coil, first DC coil, second DC coil, transient component energy release circuit, the first end of first AC coil is connected with the first end of AC input system, and the second end is connected with the first end of second AC coil;First DC coil, second DC coil are connected with DC power supply;The first end of transient component energy release circuit is connected with the second end of second AC coil, and the second end is connected with the second end of AC power supply;When short-circuit fault occurs in power system, if the voltage change rate of first AC coil or second AC coil two ends exceeds preset threshold value, transient component in short-circuit current is discharged using transient component energy release circuit.The application can effectively accelerate the attenuation of transient component in short-circuit current, avoid the structure of fault current limiter to appear damage.

This invention discloses a method, system, device, and medium for detecting battery health status. It extracts a target curve segment from the first charging characteristic curve of the battery under test; based on the correspondence between the characteristic parameters of the target curve segment and the battery health status, it determines the battery health status that matches the characteristic parameters of the target curve segment, and identifies this battery health status as the battery health status of the battery under test. This invention uses the correspondence between the characteristic parameters of the target curve segment of the battery under test and the battery health status as the calculation basis, improving the reliability and accuracy of battery health status detection; furthermore, it statistically analyzes the number of abuse conditions that accelerate battery aging, determines whether abuse conditions will accelerate battery degradation, and provides early warnings.

The utility model discloses an automobile engine die casting anti-oxidation treatment device which comprises a base, the upper surface of the base is fixedly connected with a solution box, and the upper surface of the base is fixedly connected with two supporting cylinders. According to the device, through cooperation of the sliding grooves, the sliding blocks, the containing plate, the clamping grooves and the clamping blocks, firstly, under cooperation of the sliding blocks and the sliding grooves, the containing plate and the mounting plate can be rapidly attached, rapid clamping connection can be achieved without calibrating the positions of the clamping grooves and the clamping blocks after attachment, then the clamping blocks and the clamping grooves are matched, and the clamping blocks and the clamping grooves are matched to fix the containing plate and the mounting plate. Through cooperation of a threaded rod and a lifting rod, a motor is used for driving the threaded rod to rotate, the lifting rod is made to ascend and descend rapidly, the placing plate and the mounting plate drive the casting to change the horizontal position, and finally according to the L-shaped design of the lifting rod, the casting is placed on the casting. And the placing plate and the mounting plate can drive the casting to be completely soaked in a solution in the solution box, so that the effect of quickly carrying the soaked casting is achieved.

The present invention relates to the technical field of dredging construction supervision, and specifically discloses a dredging construction supervision system and a supervision method for a waterway area, wherein the supervision method comprises the following steps: S1: obtaining the construction degree of a target waterway within a collection period; S2: calculating the mean value of the construction degree, and starting from the starting point of the target waterway, setting a number of distance points with the mean value of the construction degree as an interval; determining the impact range of the dredging construction of the target waterway between two adjacent distance points; S3: determining the number of people within the impact range, and determining the noise range according to the number of people within the impact range, and determining the standard construction time range. The present invention can adjust the time for dredging construction of the target waterway within the noise range, thereby reducing the impact of noise on people during the dredging construction process.

The utility model discloses a waste recovery device for cutting an environment-friendly paper tube, and relates to the technical field of waste recovery for cutting the environment-friendly paper tube, the waste recovery device comprises a base, the top of the base is fixedly connected with a workbench, the top of the workbench is fixedly connected with a support frame, and the top of the support frame is fixedly provided with a first cylinder; the output end of the first air cylinder is fixedly connected with a cutting knife, a first motor is fixedly connected to the side wall of one side of the supporting frame, the output end of the first motor is fixedly connected with a threaded rod, the inner walls of the two sides of the supporting frame are fixedly connected with limiting rods, and the outer side wall of the threaded rod is in limiting connection with a connecting rod through the limiting rods. Through the arrangement of the limiting rod, the threaded rod, the first motor, the connecting rod and the cleaning brush, cut environment-friendly paper tube waste can be automatically cleaned and collected, recycling is convenient, the working efficiency is improved, and the situation that the paper tube waste is accumulated at the top of the workbench and hinders the cutting process is avoided.

An N-pass filter (1) is provided with N (N is an integer of 3 or more) signal paths (P1-PN) that are connected in parallel between an input / output terminal (110) and an input / output terminal (120). The signal path (PN) has: a switch (2N) that is connected to the input / output terminal (110) and modulates an input signal; a switch (3N) that is connected to the input / output terminal (120) and modulates the input signal at the same phase as the switch (2N); and a base filter (1N) connected between the switch (2N) and the switch (3N), the switch (2N) and the switch (3N) modulate the input signal at a phase of one cycle in the signal paths (P1-PN) and at a phase different for each signal path, and the base filters (11-1N) are band-pass filters configured only from passive elements.

This application discloses a rectifying electrostatic precipitator, belonging to the field of dust collector technology. By sequentially setting a guide layer, a mixing layer, and a stabilizing layer in the inlet conical section of the outer shell, multiple airfoil-shaped guide elements in the guide layer evenly distribute the airflow, directing it across the entire inlet conical section of the outer shell. Multiple sets of grid holes in the mixing layer employ a staggered grid design to break up large-scale eddies in the flue gas guided by the guide layer, reducing them to smaller sizes and achieving initial velocity equilibrium. The stabilizing layer features a honeycomb open-cell design; the honeycomb structure effectively manages the airflow and stabilizes the velocity. Thus, the flue gas undergoes a three-stage process of "guidance-breakup-management" to achieve refined flow field treatment, improve velocity distribution uniformity, and reduce inlet local resistance.

The utility model provides a safety supporting structure for roof cutting and pressure relief of a coal mine goaf. The safety supporting structure comprises a base, a supporting seat, a supporting column, a supporting seat, an installation groove, a limiting hole, a sliding groove, a top seat, a protruding edge, a fixing tongue and a positioning bolt. According to the device, the supporting seat and the mounting groove are matched, the convex edge and the sliding groove are matched, and the fixing tongue, the limiting hole and the positioning bolt are matched, so that when the supporting position of the device is adjusted, adjustment can be completed only by sliding the position of the supporting seat in the mounting groove and utilizing the positioning bolt, the adjusting process is extremely convenient, and the moving precision is high; through cooperation of a second movable groove and a limiting column, rapid assembly is achieved, positioning and supporting are achieved, and the assembly efficiency is improved; through the threaded fit between the supporting column and the supporting seat, the lifting or lowering of the supporting column can be conveniently realized, so that the height of the top seat can be quickly adjusted.

The application discloses an organic quaternary phosphonium salt microcrystal flexible X-ray scintillation screen and a preparation method and application thereof, and belongs to the technical field of organic photoelectric functional materials. The organic radiation luminescent material is prepared from triphenylphosphine and iodomethane as raw materials through a quaternary phosphonium reaction to obtain methyltriphenylphosphonium iodide crystals, and then the methyltriphenylphosphonium iodide crystals are ground, sieved, compounded with a PVA aqueous solution and drop-coated and dried to obtain the flexible X-ray scintillation screen. The preparation method has the advantages of mild reaction conditions, simple synthesis, cheap raw materials and easy product purification, and provides a new idea for preparing an organic scintillator. The PVA aqueous solution is doped with methyltriphenylphosphonium iodide microcrystals to prepare the scintillation screen, the prepared scintillation screen has the advantages of bright radiation luminescence, high imaging resolution, low detection limit, bendability and curlability, and successfully realizes static, curved surface and dynamic X-ray imaging.