165results about How to "Reduce unevenness" patented technology

The invention provides a method for determining a mixing ratio, a storage medium and an electronic device, and the method comprises the steps: determining particle attribute parameters of a target material, and obtaining the particle attribute parameters of the target material under the condition of obtaining simulation data corresponding to mixing equipment; determining a first contact parameter of the target material and the mixing equipment based on an equipment intrinsic parameter and a particle attribute parameter in the simulation data, and determining a target mechanical basic model of the target material matched with a motion attribute under the condition that the motion attribute of the mixing equipment input by the target object is received, inputting the particle attribute parameter, the first contact parameter and the target mechanical basic model into a preset engineering application, and setting a particle generation strategy corresponding to the mixing equipment based on the mixing demand of the target object in the preset engineering application to obtain a to-be-operated simulation engineering application file, and operating the to-be-operated simulation engineering application file. And generating the target ratio parameter of each sub-strategy in the particle generation strategy. The problem that the coating is not uniform due to inappropriate ratio in the related technology is solved.

The invention relates to the field of waterproof sealing materials, and discloses a composite high-weather-resistance rubber waterstop which is composed of an outer layer, a middle layer and an inner layer. The outer layer contains 3%-8% of nano titanium dioxide, 2%-5% of nano zinc oxide, 50%-70% of a rubber matrix and 1%-3% of an ultraviolet light absorber, and the total proportion of the outer layer is 10%-20%. The middle layer is composed of 70%-85% of EPDM, 5%-10% of carbon fiber and 5%-10% of plasticizer, and the total proportion of the middle layer is 60%-75%. The inner layer is a dynamic covalent bond rubber material and contains 5%-10% of a vulcanizing agent and 1%-3% of an antioxidant, the rubber material accounts for 80%-90%, and the inner layer accounts for 15%-25% in total. Through a multi-layer composite structure, a dynamic covalent bond self-repairing material and an optimized vulcanization process, the comprehensive performance of the water-stop belt is remarkably improved, and particularly the durability and the service life of the water-stop belt in a long-term exposure environment are improved.

The invention discloses a wear-resistant ceramic tile processing glazing device which comprises a working frame, the top of the working frame is fixedly connected with a glaze slip tank, the working frame is fixedly connected with a discharging pipe, the discharging pipe is located under the glaze slip tank, a protection mechanism is arranged on the working frame, a self-adjusting mechanism is arranged on the working frame, and the self-adjusting mechanism is arranged on the working frame. The self-adjusting mechanism is located below the protection mechanism, and a bubble removing mechanism is arranged on the protection mechanism. Sputtered glaze slip is guided into a gap between the inclined plate and the hollow water absorption pad through the hollow water absorption pad, so that the overall attractiveness and quality of the ceramic tile are improved, waste of glaze can be reduced, the production cost is reduced, the device is more energy-saving and environment-friendly, meanwhile, the uniformity of a ceramic tile glaze coating is improved, and the service life of the ceramic tile is prolonged. The problem that the glaze coating on the ceramic tile is uneven due to the fact that splashing glaze slip drips on the next ceramic tile is avoided.

The invention relates to a method for controlling the axial resistivity of a crystal bar and the crystal bar, and the method comprises the steps: carrying out the equal-diameter growth of a first crystal bar according to a preset equal-diameter parameter, measuring the axial resistivity of the first crystal bar, and drawing a change curve of the axial resistivity of the first crystal bar; calculating the unevenness of the axial resistivity of the first crystal bar; when the unevenness of the axial resistivity of the first crystal bar is greater than or equal to 17%, the evaporation of the antimony element is promoted or inhibited by adjusting the pressure parameter aiming at different change stages of the axial resistivity, so that the concentration of the antimony element in the silicon solution is adjusted; the risk that the reduction trend of the axial resistivity of the crystal bar is large due to the fact that the concentration of the antimony element in the silicon solution is high is reduced, and the risk that the increase trend of the axial resistivity of the crystal bar is large due to the fact that the concentration of the antimony element in the silicon solution is low is also reduced, namely, the difference value between the maximum resistivity and the minimum resistivity is reduced; and thus, the nonuniformity of the axial resistivity is reduced.

The invention relates to the technical field of optical fiber processing, and discloses a multi-core-diameter optical fiber ultrasonic cutting system under uniform stress, which comprises a clamping symmetrical assembly, a horizontal tension driving assembly, an ultrasonic cutting assembly and a cutting knife pushing assembly, an optical fiber is clamped through the cooperation of the pressing plate and the clamping assembly base; the clamping assemblies are slidably connected with the horizontal tension driving assembly, the two clamping assemblies are driven by the horizontal tension driving assembly to move reversely, and horizontal tension is applied to the optical fiber, the ultrasonic cutting assembly is slidably connected with the cutting knife pushing assembly, and the cutting knife pushing assembly is arranged on one side of the clamping symmetrical assembly and located between the two clamping assemblies. The cutting knife pushing assembly drives the ultrasonic cutting assembly to move to cut the optical fiber; the optical fiber cutting device can effectively meet the cutting requirements of optical fibers with different core diameters, the flatness of the cut end face is remarkably improved, and burrs and cracks are reduced.

The invention discloses a natural gas transportation pipeline drag reduction structure, an optimization method and a system, and relates to the field of pipeline structures. The problems that groove drag reduction in the field of natural gas pipeline transportation aims at small-diameter pipelines, most grooves are in a traditional v shape, and the drag reduction effect is not remarkable enough are solved. The resistance reduction structure comprises a plurality of semicircular groove structures with alternate widths and widths; wherein the width of the wide groove is twice that of the narrow groove. The optimization method comprises the following steps: establishing a smooth pipeline and a model with a wide-narrow alternate semicircular groove on the wall surface; carrying out structured grid division on the smooth pipeline and the wall surface with the wide and narrow alternate semicircular grooves; numerical simulation is conducted through Fluent fluid simulation software, and a turbulent flow structure in the pipeline is obtained; and the drag reduction rate is calculated, and the final natural gas transportation pipeline drag reduction structure is determined according to the drag reduction rate. By reducing the resistance, the amount of conveyed gas can be increased under the same energy consumption, or the energy consumption is reduced under the condition of keeping the same flow, so that the overall conveying efficiency is improved.

The invention discloses a chemical mechanical polishing method and device and a storage medium. Polishing equipment is controlled to pre-grind a residual layer of a semiconductor structure until the thickness of the residual layer meets a preset thickness condition; and controlling the polishing equipment to perform secondary grinding on the residual layer meeting the preset thickness condition, and detecting end point detection data in the secondary grinding process until the end point detection data indicates that a grinding end point is reached, thereby obtaining a target semiconductor structure. According to the method, the semiconductor structure to be polished is pre-ground until the thickness of the residual layer meets the preset thickness condition, so that the specified thickness is provided for the subsequent secondary grinding stage, the window of the grinding end point in the end point detection data can be expanded when the end point detection data is detected in the secondary grinding process, and the grinding efficiency is improved. And the accuracy, reliability and stability of grabbing the grinding end point are improved.

The present invention relates to a production method of a green low-carbon high-strength extra-thick steel plate and the extra-thick steel plate produced. First, low Pcm, low CEV, low P, S, H, Cu, Sn, Nb micro-alloying composition design is carried out, and thick casting billets are formed through molten iron pre-desulfurization treatment, converter smelting, ladle refining, RH vacuum refining and continuous casting; then, billet stacking cooling, continuous casting billet heating, three-stage rolling, straightening, water cooling and slow cooling pit stacking are carried out. The service life, core performance and assembly accuracy of the extra-thick steel plate are improved, and the influence on the steel plate structure, performance, plate shape and plate shape accuracy after steel plate cutting and processing is reduced.

The invention relates to the technical field of soil turning machines, and discloses a multifunctional mountain and hill soil turning machine which comprises a machine body. The soil turning mechanism is used for scarifying the land and crushing soil blocks; the soil loosening mechanism is used for smashing caked land before the land is turned over; and the reciprocating mechanism is used for reciprocating left and right when the caked land is smashed. According to the multifunctional mountainous and hilly soil turning machine, the soil loosening mechanism is arranged, a cam piece abuts against a bottom semicircular block when rotating, and under the action of a first spring, a supporting piece drives a sliding long strip block and a bottom soil loosening column to move up and down in a reciprocating mode, so that the bottom soil loosening column knocks the bottom land in a reciprocating mode, and hard soil blocks are crushed and loosened; the compactness of the soil is reduced, a softer soil structure is created for subsequent cultivation, and the soil turning effect and the working efficiency are improved. The problem that the power system of the rooter is difficult to effectively scarify and crush caked soil layers in mountains and hills is solved.

The invention relates to image data processing, and discloses a non-motor vehicle illegal behavior efficient monitoring method and system based on deep learning, so as to improve the overall performance of recognition. The method comprises the following steps: carrying out feature extraction in a down-sampling process step by step by using a bcheck module of MobileNetV3; in a Neck network layer, a DFSM unit is added in a branch for feature fusion of a C3 module; the DFSM unit comprises an AFA Conv subunit and a CSA Conv subunit; based on an AFA Conv subunit, introducing double attention of a space and a channel as a time domain to enable a local modeling part to have global information; the DFSM is added on the basis of a C3 module, the importance of time domain and frequency domain features in a learning feature graph can be effectively enhanced, key features of a target are better captured by enhancing features with higher distinction degree, and the performance and robustness of the model are improved.

The invention discloses a tool and a method for conducting self-driven micro-vibration cutting through the tool, and relates to the technical field of machining, the tool comprises a tool bit and a tool bar, the tool bit is in a frustum shape, and the tool bit is fixedly connected with one end of the tool bar; the edge of the large bottom face of the tool bit is a cutting edge, the cutting edge is divided into a plurality of sections of sub-cutting edges in the circumferential direction of the tool bit, and a cutting groove is formed between any two adjacent sub-cutting edges of the tool bit. Each sub-cutting edge is gradually close to the cutter bar in the axial direction from one end to the other end, the end, close to the cutter bar, of each sub-cutting edge is a near end, and the end, away from the cutter bar, of each sub-cutting edge is a far end; one side of the cutting groove is the near end of one sub-cutting edge, and the other side of the cutting groove is the far end of the other sub-cutting edge. The method comprises the steps that S1, a to-be-machined workpiece is fixed to a workbench of a machine tool; s2, a cutter bar of the cutter is fixedly connected with a main shaft of the machine tool; and S3, the workpiece is cut through a cutter. Through the design of angles and sections of the cutting edges on the tool bit, self-driven micro-vibration is achieved, and therefore the machining quality and efficiency are improved.

The invention discloses a sheet metal part OTC argon arc welding machine, and relates to the technical field of argon arc welding machines, the sheet metal part OTC argon arc welding machine comprises a base and a current adjusting device, through use of a polishing assembly, an attaching spring contracts to drive two sections of round pipes to be attached, a fixing arc block extrudes and fixes an inner welding gun, and an inclined fixing block extrudes the inner wall of a sliding rail, so that the effect of fixing the inner welding gun, an outer welding gun and a movable support is achieved; the inner welding gun, the outer welding gun and the movable support are prevented from moving to affect welding in the welding process, the motor drives the driving gear to rotate, the two sections of round pipes rotate synchronously, the outer welding gun and the inner welding gun generate high-current and high-temperature electric arcs, the two sections of round pipes are welded, and under the protection of argon, metal oxidation and invasion of other impurities are prevented; and the two sections of circular pipes synchronously rotate to be matched with the outer welding gun and the inner welding gun to conduct welding on the inner side and the outer side, so that the possibility that gaps are generated due to the fact that the pipe walls are thick is reduced, the welding position is firmer, and the situation that the welding position is burst due to high temperature and high pressure is avoided.

A narrow-pulse-width multi-wavelength laser based on LED pumping comprises a reflecting mirror, a first LED pumping module, an optical rotation crystal, a second LED pumping module, an acousto-optic Q-switched crystal and an output mirror which are sequentially connected in series. The LED pumping module comprises a laser rod located in the center, a glass sleeve is arranged on the periphery of the laser rod in the length direction, a supporting frame is arranged on the periphery of the glass sleeve, a plurality of sets of water-cooling copper blocks are evenly arranged on the supporting frame, and an LED stacking array is arranged on the side, close to the glass sleeve, of each set of water-cooling copper blocks. Each LED stacking array comprises an LED light bar and a PCB (Printed Circuit Board) for fixing the LED light bar, and the PCB is connected with the water-cooling copper block; cooling water circulation modules are arranged at the two ends of the laser rod in the length direction respectively, and water through holes are formed in the cooling water circulation modules and the water cooling copper blocks respectively. A laser resonant cavity system of the laser takes an LED as a pumping source, combines an acousto-optic Q-switching technology, and simultaneously realizes compression of laser pulse width and multi-wavelength output.

The utility model provides a system for preparing glyphosate by oxidizing N-(phosphonomethyl) iminodiacetic acid. The system comprises a high-pressure reactor and a built-in strengthening unit, at least two catalyst bed layers are arranged in the high-pressure reactor, each catalyst bed layer is arranged below the liquid level in the high-pressure reactor, and a built-in strengthening unit is arranged between every two adjacent catalyst bed layers; the built-in strengthening unit comprises a first strengthening reactor and a receiving disc arranged under the first strengthening reactor, the receiving disc is of an inverted arc-shaped concave structure with a low center and a high edge, an acceleration area is arranged in the center area of the receiving disc, and the acceleration area is arranged opposite to an outlet of the first strengthening reactor. According to the system disclosed by the utility model, oxygen and a N-(phosphonomethyl) iminodiacetic acid solution are crushed and dispersed into micron-sized bubbles through the enhanced reactor, so that the dissolution rate of oxygen and the oxidation reaction rate are greatly improved, and the conversion rate of raw materials is improved.

The invention relates to the technical field of shock absorber welding devices, in particular to a large-bearing spring damping type inflation machine tool shock absorber welding device which comprises a workbench, a side plate is arranged on one side of the workbench, a top plate is arranged on one side of the side plate, and a heat conduction assembly used for accelerating heat dissipation is arranged below the top plate. The heat conduction assembly comprises a cylinder, a plurality of hydraulic rods are arranged in the cylinder, the opposite ends of the multiple hydraulic rods penetrate and extend to the outer side of the cylinder and then are fixedly connected with limiting arc-shaped plates, and the multiple limiting arc-shaped plates form a circular ring to support and limit the inner side of the cylindrical workpiece; the semiconductor chilling plates on the inner sides of the limiting arc-shaped plates actively absorb heat on the inner side of a welding seam, then the heat is rapidly dissipated through the cooling fins, the temperature gradient on the inner side and the outer side of the welding seam can be reduced, temperature distribution is more uniform, the non-uniform degree of thermal stress is reduced, the deformation conditions such as roundness deviation of a weldment are effectively controlled, and the reject ratio is reduced.

The invention relates to the field of cosmetic ingredients, and particularly discloses bentonite gel as well as a preparation method and application thereof. The bentonite gel is prepared from the following components in parts by weight: 65 to 85 parts of grease, 12 to 22 parts of bentonite and 5 to 12 parts of propylene carbonate, the preparation method comprises the following steps: stirring the grease and the bentonite at room temperature at the speed of 400-600r / min for 15-30min, then adding the propylene carbonate, stirring at the speed of 1200-1600r / min for 60-180s until the mixture is sticky, and grinding the stirred product to obtain the bentonite gel. The bentonite gel disclosed by the invention can be used in cosmetics, the problem of insufficient stability of the bentonite gel in the application of cosmetics at present is solved, and the preparation method of the bentonite gel has the advantages of simplicity, high efficiency and low cost.

The utility model relates to the technical field of batteries, in particular to a diaphragm, a battery and electric equipment, the diaphragm comprises a diaphragm body and a lug boss, the lug boss is connected with the diaphragm body, and the lug boss is used for being matched with a pole piece. According to the diaphragm, the battery and the electric equipment disclosed by the utility model, the convex part is arranged on the diaphragm body, so that the diaphragm body with the convex part can be matched with the pole piece comprising the etched concave part in a concave-convex manner; the long circulation capability of the battery is effectively improved, the service life of the battery is prolonged, the safety performance of the battery is improved, the capacity retention rate of the battery is improved, and the production and preparation efficiency is improved.

The invention discloses a multi-energy-field auxiliary multi-phase jet flow polishing method and device for a miniature bearing, and the method comprises the steps that a plurality of bearing inner rings are clamped into a workpiece clamp, the center lines of all the bearing inner rings coincide after clamping, and the inner circle faces of the adjacent bearing inner rings are sequentially connected to form an inner circle face set with the two ends open; the spatial position of the inner circular surface group is determined, the position of the jet device is adjusted based on the spatial position and the divergence angle range of jet flow of the jet device, the center line of a jet flow nozzle of the jet device coincides with the center line of the inner circular surface group, and sprayed jet flow can cover the whole inner circular surface group; through the synergistic effect of multiple energy fields, stress-scratch-free efficient low-damage polishing machining can be conducted on multiple complex inner ring structures at the same time, tool marks and burrs generated after machining are effectively removed, the polishing quality and efficiency of high-end spaceflight parts are greatly improved, and the polishing quality and efficiency of the high-end spaceflight parts are improved. And the development of advanced manufacturing technologies of major equipment such as aviation and spaceflight in China can be effectively supported.

The invention discloses a flexible conductive drivable composite fiber and a preparation method, system and application thereof. The preparation method comprises the following steps: uniformly mixing a polymer solution with a large thermal expansion coefficient, a curing agent and a diluent to form a diluted polymer solution; the preparation method comprises the following steps: immersing conductive fibers in a diluted polymer solution, and then enabling a polymer to enter a conductive carbon fiber tow under the extrusion action through a rolling mechanism, and carrying out first-time immersion and homogenization; then dipping in a pure polymer solution, and carrying out capillary homogeneous extrusion again through the rolling mechanism; the operation is repeated for more than two times, so that the pure polymer solution is uniformly distributed in the conductive fiber tows; and finally, curing and twisting to prepare the flexible conductive drivable composite fiber with the uniform spiral structure. The composite fiber with a uniform structure is prepared through a rolling-assisted step-by-step impregnation process, has certain flexibility, retains good mechanical properties of the fiber, and still has good mechanical properties after knotting and spiral deformation.

The utility model discloses an integrated glue solidification detection structure's angle grinder, including setting's machine base, install drive seat on the machine base, drive seat is symmetrically arranged, be connected with the angle seat through the movement structure on drive seat, the angle seat is distributed on the machine base upper end four corners, the clamping groove for placing photovoltaic board is seted up on the angle seat, the clamping groove is opposite to set up, install drive motor under drive seat, drive motor output end is connected with the rotating shaft, the rotating shaft is connected in the clamping groove inside through -penetrating, the rotating shaft outside is provided with the carousel. This integrated glue solidification detection structure's angle grinder, the angle seat is convenient for four corner positions of photovoltaic board to carry out positioning and polishing simultaneously, avoids the deviation or inclination of photovoltaic board in the processing, and the polishing of photovoltaic board corner is carried out through the rotary motion of carousel, and the whole structure is simple, reduces the problem that the maintenance cost increases due to the setting complex structure.

The utility model discloses an agricultural greenhouse air temperature and humidity sensor for intelligent agriculture, which comprises a plurality of groups of temperature and humidity sensor bodies and a supporting structure which are sequentially arranged from bottom to top, and the supporting structure comprises a plurality of groups of supporting upright posts which are sequentially arranged from bottom to top, the plurality of groups of supporting columns which are sequentially arranged from bottom to top correspond to the plurality of groups of temperature and humidity sensor bodies which are sequentially arranged from bottom to top, and any one of the plurality of groups of supporting columns which are sequentially arranged from bottom to top is movably connected with the corresponding temperature and humidity sensor body through a mounting structure. According to the utility model, air at different heights in the greenhouse can be monitored in real time, deviation caused by the influence of the height of the greenhouse on the temperature due to the motion law of airflow and the non-uniformity of temperature distribution is greatly reduced, and the environment temperature of crops can be accurately controlled.

The present invention belongs to the technical field of polytetrafluoroethylene material preparation, and specifically relates to a method for preparing polytetrafluoroethylene ultrafine filaments. The preparation method comprises the following steps: (1) preparing a mixture of modified cordierite fiber and nano-baryte; (2) preparing modified polyparabenzamide fiber; (3) preparing a modified polytetrafluoroethylene film; (4) preparing polytetrafluoroethylene ultrafine filaments. The method for preparing polytetrafluoroethylene ultrafine filaments of the present invention selects a mixture of modified cordierite fiber and nano-baryte, and a modified polyparabenzamide fiber and a polytetrafluoroethylene dispersion resin for compounding, thereby ensuring the breaking strength of the prepared polytetrafluoroethylene ultrafine filaments and reducing their unevenness and elongation at break.

The present invention provides a conversion target device, which includes an upper frame, a target material layer, a cooling cavity frame and a sealing layer, wherein the upper frame fixes the target material layer to the cooling cavity frame; the sealing layer is fixedly connected to the cooling cavity frame, the target material layer, the cooling cavity frame and the sealing layer form a cooling cavity, and the cooling cavity includes an inlet and an outlet for a cooling liquid; wherein the target point of the target material layer is set to be conical; the present invention also provides a target material layer structure, which includes a target point position, and when an electron beam interacts with the target point position of the target material layer structure, X-rays are generated; the target material layer at the target point position is conical. The present invention optimizes the planar target structure to improve the conversion efficiency of the target, the irradiation dose distribution and the heat dissipation effect of the target.

The utility model relates to the technical field of road paving devices, and discloses a municipal road paving device which comprises a movable seat, the upper portion of the movable seat is fixedly connected with a fixed seat, the upper portion of the fixed seat is fixedly connected with a first motor, and the output end of the first motor is fixedly connected with a driving belt pulley. The driving belt wheel is connected with a driven belt wheel through a belt, a rotating shaft is fixedly connected into the driven belt wheel, the other end of the rotating shaft is fixedly connected with a first gear, supporting frames are fixedly connected to the two sides of the upper portion of the movable base, and a positioning block is fixedly connected to the upper portion of the supporting frame on one side. A second gear is rotationally connected into the positioning block. According to the utility model, materials can be effectively heated during stirring, the materials can be fully mixed, the materials can be more uniformly paved, the compression roller can be conveniently driven to move back and forth, the paving materials can be more uniformly compacted, and the construction speed is accelerated.

The invention discloses a tile lifting device of a tile arranging machine, which comprises a driving motor and a four-bar mechanism capable of driving a tile lifting plate of the tile arranging machine to ascend and descend, and the four-bar mechanism is in driving connection with the driving motor. The tile lifting device of the tile arranging machine is simple in structure and high in response speed, the transmission assembly of the tile lifting device of the tile arranging machine detects whether the tile lifting plate lifts the mahjong tiles in place or not, and user experience is improved.

The utility model relates to the technical field of extruded sheet edge grinding devices, in particular to a polystyrene extruded sheet edge grinding device which is characterized in that an extruded sheet is conveyed to a grinding platform through a conveying mechanism, the transverse position of the extruded sheet is positioned through a positioning mechanism, the longitudinal position of the extruded sheet is positioned through a lifting mechanism, manual intervention is reduced, and the production efficiency is improved. The grinding efficiency is improved, edge grinding treatment is conducted on the extruded sheet through the edge grinding mechanism, the phenomena of unevenness, burrs and the like on the surface of the extruded sheet are reduced, the smoothness of the extruded sheet is improved, fine dust generated in the grinding process is cleaned through the dust collection mechanism, harm of the dust to people is reduced, and the environment is kept clean; comprising a fixing mechanism; the conveying mechanism is installed on the fixing mechanism, the positioning mechanism is installed on the fixing mechanism, the lifting mechanism is installed on the fixing mechanism, the edge grinding mechanism is installed on the fixing mechanism, and the dust collection mechanism is installed at the top end of the fixing mechanism.

The invention relates to the technical field of fracturing equipment, in particular to a fracturing truck horizontal cooling system which comprises a radiator unit, a cooling fan, a detection unit, an analysis unit and a control unit. The radiator unit is divided into two layers of cooling modules, the detection unit is used for detecting the circulating temperature, the working number and the output displacement, and the analysis unit is used for judging the distribution condition of the cooling modules needing heat dissipation according to the working number, calculating the maximum temperature difference value according to the weight and the scoring standard coefficient, and adjusting the actual rotating speed of a cooling fan. And according to the temperature difference value judgment result, the heat dissipation area is adjusted, and the cooling degree and the heat dissipation allowance of each cooling module are judged. The control unit is used for adjusting the actual rotating speed and the initial minimum rotating speed of the cooling fan and controlling the working state of the thermostat and the opening and closing of the fixed switch; by adaptively adjusting the heat dissipation area of the heat dissipation system, the heat dissipation flexibility and adaptability of the fracturing truck are improved.

The utility model discloses a kind of spray tray isolation components and atomic layer deposition chamber containing its process for depositing conductive film layer, it is related to atomic deposition equipment technical field;The isolation component is arranged in the chamber for atomic deposition, the isolation component includes isolation piece top plate, the bottom outer periphery of the isolation piece top plate extends downward and is formed with side wall part, the lower end of the side wall part extends and is formed with flange part towards inside, the isolation piece top plate, the side wall part and the flange part between formation are used to accommodate the accommodating groove of spray tray.The isolation component provided in the utility model forms half-wrapping structure at the edge of spray tray, improves the medium insulation effect of isolation component while preventing side discharge, can reduce edge electric field effect;Reduce the non-uniformity of center-edge plasma, to improve film uniformity.

The utility model relates to the technical field of centrifugal fans, and discloses a multistage noise reduction flow guide structure of a centrifugal fan, which comprises a centrifugal fan main body, the inner wall of the centrifugal fan main body is fixedly connected with sound absorption cotton, one end of the centrifugal fan main body is fixedly connected with a flow guide cylinder, and the inner wall of the flow guide cylinder is fixedly connected with a noise reduction component. A dustproof assembly is arranged at one end of the guide cylinder, the noise reduction assembly comprises a double-layer micro-perforated plate arranged on the inner wall of the guide cylinder, a honeycomb metal guide plate is fixedly connected into the double-layer micro-perforated plate, and the dustproof assembly comprises a mounting plate arranged at one end of the guide cylinder. According to the multi-stage noise reduction flow guide structure of the centrifugal fan, by arranging the sound absorption cotton, the reinforcing layer and the noise reduction assembly, the purpose of multi-stage noise reduction is achieved, the situation that when airflow enters the air inlet, vortexes can be formed, generated airflow turbulence collides with the fan in a large amount, and large noise is generated is avoided, and sound pollution generated by the centrifugal fan can be improved.

A rubber die for cold isotropic pressure molding according to one embodiment of the present invention has a plate-like shape and is for use in performing a cold isotropic pressure molding process on a molded article. Said rubber die is provided with one or more substantially cylindrical holes formed in at least one surface thereof. In this rubber die, a / b<2.0 is satisfied, where a represents the diameter of the opening of the holes, and b represents the maximum depth of the holes.