21results about How to "Uniform density" patented technology

This utility model belongs to the field of evaporator technology and discloses a high heat exchange efficiency microchannel heat exchange structure ice mold evaporator, including an evaporator body. Multiple microchannel heat exchange tubes are fixedly installed on the inner side of the evaporator body, and multiple microchannel holes are opened at the bottom of the evaporator body. Diversion pipes are fixedly installed on the left and right sides of the evaporator body. The comprehensive application of the microchannel heat exchange structure, inner surface strengthening treatment, and outer surface fin design significantly improves the heat exchange efficiency of the evaporator. Compared with traditional evaporators, the ice-making speed can be increased, producing the same amount of ice in a shorter time, meeting the demand for rapid ice making. High heat exchange efficiency means that, under the same ice-making capacity, the required refrigeration compressor running time is shortened, and energy consumption is reduced. Actual testing shows that using the evaporator of this utility model reduces the energy consumption of the ice-making system, effectively reducing operating costs.

A navigation light adjustment method and system are disclosed, relating to the field of navigation light technology. The method involves acquiring vessel information and visibility for all vessels within a predetermined water area; determining the vessel density within the predetermined water area based on the vessel information; dividing the predetermined water area into multiple adjustment zones based on the vessel density; calculating the comprehensive navigation condition value for each vessel within each adjustment zone based on the visibility and vessel density; obtaining the navigation routes for each vessel within each adjustment zone; and adjusting the parameters of the navigation lights for each vessel within each adjustment zone based on the navigation routes and the comprehensive navigation condition value. Implementing the technical solution of this application allows for analysis of the surrounding navigation environment and timely adjustment of navigation lights, thereby reducing the probability of vessel collisions.

This invention relates to the field of building exterior wall construction technology, specifically a construction method for concrete in building exterior wall structures. The device includes a wall body with internal steel reinforcement. Several binding steel bars are arranged in a linear array on the wall reinforcement, and all binding steel bars are inserted into the wall body. A formwork mechanism that restricts the concrete shape and is easily disassembled is located in front of the wall body. The filled concrete is compacted by uniformly moving laterally during vibration, thus avoiding the situation where some concrete is not compacted during manual operation. This ensures uniform compaction of the concrete, further increasing its overall structural strength after setting. While more accurately controlling the concrete compaction, the vibration also removes a large number of air bubbles within the concrete, preventing the formation of numerous voids that could damage the overall structural strength of the exterior wall after setting, and also preventing rainwater infiltration and dampness.

This invention discloses a waste recycling device for FIBC (Flexible Intermediate Bulk Container) processing, relating to the field of comprehensive environmental utilization of solid waste. The device includes a hollow frame, a hydraulic rod mounted on the hollow frame, and a pressure plate mounted on the hydraulic rod. The equipment continuously feeds FIBC waste into a flattening machine. The pressure plate is automatically triggered by the weight of the waste, achieving a complete automatic cycle of feeding, weighting, triggering, compaction, resetting, and locking, thus improving waste recycling efficiency. When not in operation, the pressure plate is rigidly limited by a limiting mechanism, preventing hydraulic system depressurization or accidental drop. This ensures uniform compaction density of the plastic waste, reducing the mixing and adhesion of plastic and impurities due to insufficient compaction, facilitating subsequent separation of plastic from other components. It also protects core components such as the hydraulic rod and pressure plate, extending equipment lifespan, reducing maintenance costs, and contributing to the resource-based recycling of plastic waste and comprehensive utilization of solid waste.

This application provides a gradient-doped ferroelectric thin film device and its fabrication method, relating to the field of optoelectronic device technology. The gradient-doped ferroelectric thin film device comprises, from bottom to top, a substrate, a buried oxide layer, a buffer layer, and a ferroelectric thin film material layer; the ferroelectric thin film material layer is doped with impurity ions, with the doping concentration of the impurity ions increasing sequentially from bottom to top. This application, by employing a bottom-up incremental gradient doping design, optimizes the interface defects and internal stress of the ferroelectric thin film, overcomes the problem of lattice mismatch between ordinary ferroelectric thin films and the substrate layer, achieves improved crystal quality and enhanced electro-optic coefficient, and effectively improves the electro-optic effect.

This invention discloses a control method and system for a high-temperature coating furnace for pyrolytic graphite, belonging to the field of material preparation and high-temperature heat treatment technology. It solves the problems of poor deposition uniformity, contradiction between deposition efficiency and quality, and poor process repeatability that exist in coating furnace control methods when preparing workpieces. The technical solution includes the following steps: The substrate to be deposited is placed in the furnace chamber of the high-temperature coating furnace for pyrolytic graphite and pretreated; the pretreated substrate is subjected to multi-stage variable temperature and flow rate deposition control to complete the deposition operation. The multi-stage variable temperature and flow rate deposition control includes four sub-stages performed sequentially: preheating and degassing, interface nucleation, stable growth, and final densification; after the deposition operation is completed, the substrate is cooled, and the substrate coated with pyrolytic graphite is removed. This invention is applied to coating furnaces.

This invention discloses a hot isostatic pressing densification method for impregnated coating of ball valve cores, belonging to the field of metal surface coating technology. The method specifically includes the following steps: (1) substrate pretreatment and coating preparation; (2) activation of the coating's thermoplastic state; (3) encapsulation-type near-isostatic pressing densification treatment; and (4) unloading, cooling, and finishing. The core of this invention lies in the synergistic effect of "thermoplastic softening" and "uniform pressure application with full spherical encapsulation." By applying a uniform pressure of approximately isostatic pressure to the coating in its thermoplastic state, the internal pores are efficiently closed, improving the coating's density and overall mechanical properties without damaging the coating's integrity or the workpiece's geometric accuracy.

This utility model discloses a magnetic material processing and forming device, relating to the field of soft magnetic material processing technology. It includes a base, a stationary groove mold, a moving groove mold, a first driving device, and a second driving device. The stationary groove mold is fixed to the base, and a push plate is provided at the groove notch. The moving groove mold is slidably mounted on a linear slide rail on the base. The first driving device drives the moving groove mold to close with the stationary groove mold, at which point the groove bottom plate, the two groove notches, and the push plate together form a pressing groove. The second driving device drives the punch to press the protrusion into the pressing groove to complete the forming. During demolding, the moving groove mold separates and drives the push plate to automatically eject the blank. This device achieves rapid mold closing and demolding through the sliding cooperation of the moving and stationary groove molds, resulting in a simple structure and efficient operation. The device automatically ejects the blank through the sliding separation of the moving and stationary groove molds and the linkage of the push plate, eliminating the need for a separate ejection mechanism, reducing the failure rate, reducing the number of parts, and ensuring uniform pressing density of the blank.

This invention is primarily applicable to the field of embroidery machine technology. It discloses a method, device, equipment, and medium for feedforward control of yarn tension in an embroidery machine. The method involves acquiring data of the pattern to be embroidered within a look-ahead buffer; detecting the needle pattern switching point between the current and next needle steps; determining the theoretical thread consumption rate mutation value based on the needle step length and spindle speed; generating a compensation pulse command accordingly, the execution time parameter of which is synchronized with the spindle phase at the start of the next needle step; and controlling an electromagnetic direct-drive high-speed response actuator to perform active compensation within a preset window when the spindle reaches this phase, thus mitigating the transient impact of the thread consumption rate mutation on the yarn tension. This application achieves feedforward-feedback composite high-dynamic control of yarn tension during needle pattern switching transients, eliminating thread breakage and slippage, and ensuring stitch consistency in the transition area.

The utility model discloses a kind of attaching mechanisms of lithium anode plate, including anode fixed plate, conducting plate, lithium anode fixed plate, air inlet part, air outlet part and multiple wires;The conducting plate is fixedly configured between the anode fixed plate and lithium anode fixed plate, first chamber is formed between the conducting plate and the anode fixed plate, second chamber is formed between the conducting plate and the lithium anode fixed plate;The air inlet part and air outlet part are communicated with the second chamber, and multiple negative pressure suction holes are provided on the lithium anode fixed plate;Multiple wires are welded with the conducting plate at one end, and the welding point of the wire is located in the first chamber;Multiple electrically-conductive connecting structures are provided between the conducting plate and the lithium anode fixed plate;The attaching mechanism of lithium anode plate uses negative pressure suction force to make lithium anode and conducting copper plate fully attached, improve the electrically-conductive consistency between lithium anode plate and conducting copper plate.

This invention relates to the field of mortar testing, specifically to a mortar consistency testing device for environmentally friendly mortar. It includes a lead screw slide with its output end fixed to a worktable. A cover is located beside the worktable, and a cone-shaped device coaxially and detachably holds the mortar. A vibration mechanism is located at the lower end of the cover. An infrared sensor is fixedly connected to the lead screw slide near the cover, and the infrared sensor is electrically connected to a controller. An electromagnet is fixedly connected to the lead screw slide below the sensor. A support is fixedly connected to the lead screw slide below the electromagnet, and an electric actuator is fixedly connected to the upper end of the support. A retaining ring is fixedly connected to the end of the support away from the lead screw slide, and a guide rod is coaxially connected to the retaining ring. A permanent magnet is fixedly connected to the upper end of the guide rod near the lead screw slide, and a cone-shaped device coaxially with the cone-shaped device is fixed to the lower end of the guide rod. During testing, the cone is filled with mortar and fixed coaxially with the cover cylinder. The vibration mechanism disperses the mortar. The screw slide and electric actuator adjust the position of the cone, and the electromagnet attracts the guide rod. After the power is cut off, the cone falls, the infrared sensor detects the displacement and transmits it to the controller to calculate the consistency, thus achieving accurate testing.

This invention provides a gradient silicon nitride ceramic femoral head prosthesis and its preparation method, relating to the technical fields of clinical medicine and biomaterials. The femoral head prosthesis is prepared from 88-94 parts of silicon nitride powder, 4-12 parts of sintering aid, 5-20 parts of tungsten carbide titanium, and 0-30 parts of pore-forming agent, wherein the pore-forming agent cannot be 0 parts. The gradient silicon nitride ceramic femoral head prosthesis of this invention retains the advantages of silicon nitride ceramics—low wear, low friction, high strength, high fracture toughness, and good chemical stability—at the interface between the femoral head prosthesis and the liner, while reducing wear on the titanium alloy femoral stem cone caused by the large hardness difference between the femoral head prosthesis and the liner. This reduces the incidence of organ toxicity, periprosthetic osteolysis, and aseptic loosening caused by metal wear debris, improves the survival rate of the femoral head prosthesis and the femoral stem cone, reduces the revision rate of replacement surgery, and saves patients' treatment costs.

This invention relates to a uniformly dense curved polyurethane foam core material, its rotational foaming preparation method, and an antenna sandwich structure, belonging to the technical field of polymer material foaming molding and composite material structure manufacturing. In the key stage of the polyurethane mixture foaming reaction, this invention drives the mold to rotate continuously and uniformly around the central axis of the antenna surface, placing the liquid in a microgravity state where centrifugal force and gravity are balanced, eliminating density stratification and preparing a curved polyurethane foam core material with a density difference ≤5%. This core material is then composited with a fiber-reinforced resin composite skin to obtain the antenna curved sandwich structure. This invention achieves near-net-shape forming through the conformal design of the mold cavity and the antenna reflector surface, and strengthens the interface bonding by setting a film reinforcement layer between the skin and the core material. This invention effectively improves the surface accuracy stability and electrical performance consistency of the antenna reflector surface, and has the advantages of simple process, low cost, and wide applicability.

This invention discloses a sodium-ion battery rolling device, including a rolling assembly comprising a pressure roller and a side frame. The rolling assembly further includes a driven roller and a steel strip. The steel strip is sleeved on the outside of the pressure roller and the driven roller. The contact portion between the steel strip and the slurry coating forms a compression section. The contact surface between the compression section and the slurry coating is sloped, with the slope facing the pressure roller. The driven roller has reciprocating components on both end faces that drive the compression section to reciprocate along the contact surface with the slurry coating, with the reciprocating movement direction perpendicular to the slurry coating transport direction. This invention increases the compression path of the slurry coating and reduces the compression amount by using the compression section, ensuring the internal material uniformity of the slurry coating after rolling. Furthermore, the reciprocating compression section can smooth out minor protrusions on the surface of the slurry coating, ensuring the final uniformity of the slurry coating thickness and effectively guaranteeing the final product quality.

This invention relates to the field of coffee extraction technology and discloses an industrial espresso extraction machine, including a frame with a power supply box embedded in the inner side of the frame. A ground coffee pushing mechanism is provided behind the power supply box, a chute is provided on the outer side of the hopper, and a ground coffee dispensing mechanism is provided below the chute. This industrial espresso extraction machine, by employing a diversion mechanism, allows for a second extraction after a batch of coffee powder has been extracted once, and the extracted coffee liquid is diverted and transported separately from the first extraction, making full use of the coffee powder and saving costs. It can perform both hot and cold extractions. Cold and hot water can be switched at any time through the control of a T-junction and solenoid valve on the pipeline. An integrated grinder grinds a batch at a time, extracting immediately after grinding, minimizing the loss of coffee flavor. The addition of a ground coffee dispensing mechanism stirs and smooths the coffee powder, making it even and more uniform in density, resulting in better extraction.

The present application relates to the field of filling mold pressing process, and particularly relates to a cork special-shaped core mold pressing product filling mold pressing process, which comprises a blanking bin forming die, an A scraper, a B scraper, a C scraper, an upper forming die, a mold core and the following steps: the upper forming die is arranged in matching with the blanking bin forming die, and a filling groove is formed in the top of the blanking bin forming die; A scraping grooves are formed in the both sides of the bottom of the A scraper corresponding to the filling groove; B scraping grooves are formed in the both sides of the bottom of the B scraper corresponding to the filling groove, and B scraping grooves two are formed in the inner bottom wall of the B scraping grooves one; C scraping grooves are formed in the both sides of the bottom of the C scraper corresponding to the filling groove. The multiple groups of scrapers are arranged to scrape and fill the mold core in the scrapers, so that the filling is uniform, the density is uniform, the elasticity and strength are consistent, a piece of mold core is added in the inside to be pressed at the same time, the strength of the product after forming is strengthened due to the added mold core, and the product itself is more durable, and is not easy to break and break.

The utility model discloses a raw material conveying device for a silicon carbide semiconductor single crystal furnace, which relates to the technical field of conveying devices and comprises a main body, a first motor is fixedly connected to the rear side of the main body, a material conveying pipe is arranged in the main body, and a screw rod is fixedly connected to the output end of the first motor. The upper side of the main body is fixedly connected with a dehumidification box, the upper side of the main body is fixedly connected with a fixed block, the upper side of the main body is fixedly connected with a fan, an input pipe of the fan is fixedly connected with the dehumidification box in a penetrating manner, and the upper side of the main body is fixedly connected with a storage tank. Through mutual cooperation of the connecting pipe, the feeding pipe, the filter plate, the stirring rod, the fixing column, the driving shaft, the rotating shaft, the limiting strip, the rotating disc and the limiting column, raw materials in the material storage tank can be stirred and screened, through mechanical stirring, the granularity, density and chemical components of the raw materials are more uniform, the agglomeration structure is broken through stirring, particles are dispersed, and the screening efficiency is improved. And the flowability of the powder is improved.

The utility model provides a kind of creping knife.The creping knife includes base body, the end of the base body forms first end face, coating is arranged on the first end face, one side of the base body is equipped with inner arc chamfer, the inner arc chamfer makes the base body form second end face, third end face and fourth end face, the second end face and fourth end face are respectively connected in the both ends of inner arc chamfer, and the third end face is connected between first end face and fourth end face;The other side of the base body width direction Y is equipped with fifth end face;Angle γ is formed between the second end face and fifth end face, angle β is formed between the third end face and fifth end face, the third end face has length W, the first end face and fifth end face have angle α0, the coating and fifth end face have angle α, and the end of the fourth end face and the center of inner arc chamfer have height h.The utility model can prolong the service life of creping knife, and improve paper creping quality.

The invention discloses a roadbed detection device and a construction method, and relates to the technical field of roadbed detection, the roadbed detection device comprises a control end, a geogrid and a detection assembly; the geogrid comprises a fixing support and a material pressing support, and when the material pressing support is installed on the fixing support, the material pressing support can move in the direction close to the fixing support. The detection assembly comprises a first detection piece and a second detection piece, and the first detection piece is used for detecting first compaction information of a contact area of the fixing support and the lower roadbed; the second detection part is used for detecting second compaction information of the filler in the grid, the detection assembly transmits the first compaction information and the second compaction information to the control end, and the control end adjusts the material pressing support to move according to the first compaction information and the second compaction information. The invention provides a roadbed detection device and a construction method, and aims to solve the technical problem that in roadbed construction, the filling state of filler at a geogrid cannot be obtained, so that the compactness of the filler inside and outside a grid formed after the filler is compacted is not uniform.