16results about How to "Reduce uneven distribution" patented technology

The application relates to a water-based fluorocarbon color paste electrostatic spraying system and relates to the technical field of paint spraying equipment, which comprises a machine body, a spray gun for spraying workpieces is arranged on the machine body, a feed loop for conveying color paste to the spray gun is arranged on the machine body, an electrostatic generator is connected to the feed loop, and an adjusting mechanism for adjusting the opening and closing of the spray gun is arranged on the machine body. The electrostatic generator supplies power to the feed loop, and electrostatics are mixed into the color paste, so that the color paste is negatively charged; the adjusting mechanism opens the spray gun, and then the color paste mixed with the negative charge is sprayed on the workpiece with positive charge, and a uniform coating is deposited, so that the operation is convenient, and the possibility that the color paste is difficult to be adsorbed on the workpiece and causes uneven distribution of the color paste on the surface of the workpiece is reduced.

The invention discloses a fire grate, a combustor and a water heater, and relates to the technical field of water heaters, and the fire grate comprises a fire grate body and a spoiler. The fire grate body is provided with an air inlet runner and a mixing cavity, the mixing cavity is provided with an air outlet and communicates with the exhaust end of the air inlet runner, and an air inlet is formed in the air inlet end of the air inlet runner; the flow disturbing piece is arranged in the air inlet flow channel and comprises a flow disturbing body and a flow guiding part, the flow disturbing body is provided with a flow disturbing groove formed in a penetrating mode, the flow guiding part corresponds to the flow disturbing groove, the flow disturbing groove is used for dispersing and disturbing air flow flowing through the flow disturbing body, and the flow guiding part is used for guiding the air flow to flow from the flow disturbing groove to the mixing cavity. According to the technical scheme, the mixing uniformity of fuel gas and air in the fire grate can be enhanced, the stoichiometric ratio of the fuel gas at the fire grate outlet is reduced, the local high temperature phenomenon is avoided, and then flue gas emission of pollutants such as CO and NOx is reduced.

The utility model relates to a spinning equipment technical field, concretely to a hollow silk spinning equipment, including the shell, be provided with extrusion mechanism on the shell, the extrusion mechanism includes: the input slot, the input slot is set up on the inner wall of shell, the inner wall of shell is fixedly connected with hollow block, the inner wall of hollow block is provided with mixing chamber, the inner wall of hollow block is provided with the hole ring block, the bottom of hollow block is fixedly connected with ring type cylinder, the top of hollow block is fixedly connected with trachea, the inner wall of hollow block is seted up with the air -jet mouth. The utility model discloses the extrusion mechanism is set up, and the two layers of mesh round disc of hole ring block are used to melt forcedly divide into multiple thin small stream bundle and cross confluence, effectively reduce the problem that material distribution is uneven, and nitrogen is injected to the middle part of blank simultaneously through trachea and forms rigid support, prevent high temperature melt from collapsing because of low self -strength, ensure that blank maintains the preset big hollow form.

The application discloses a chuck assembly and a semiconductor device, relates to the technical field of semiconductor devices, and comprises a chuck and one or more shaft cylinders, wherein the last shaft cylinder of the plurality of shaft cylinders or one shaft cylinder is connected with the chuck, the inside of each shaft cylinder is provided with a central hole, the central hole is provided with a balance mass and an elastic damping piece, and the elastic damping piece is sleeved with the balance mass to form a balance mass-spring-damping system. The chuck assembly is sleeved with the balance mass through the elastic damping piece to form the balance mass-spring-damping system, the balance mass-spring-damping system generates reverse vibration matched with the vibration of the chuck, micro-vibration generated between the disc surface of the chuck and the contact surface of the substrate is inhibited, generation of friction particles is reduced, stability and cleanliness of a core area of a process environment are improved, process quality of a deposited film is improved, and the needs of high-end processes for extremely low defect rate and ultra-high uniformity of the deposited film are met.

This invention relates to a superjunction semiconductor device, comprising a first conductivity type substrate, a first conductivity type epitaxial layer, multiple layers disposed on the front side of the first conductivity type substrate, second conductivity type ions implanted into the first conductivity type epitaxial layer to form second conductivity type first pillar regions, at least two rows of second conductivity type first pillar regions, each row of second conductivity type first pillar regions connected to form second conductivity type first pillars, a first conductivity type second epitaxial layer disposed on the front side of the first conductivity type first epitaxial layer, a first trench formed on the first conductivity type second epitaxial layer, the first trench filled with a second conductivity type material to form second conductivity type second pillars, the second conductivity type second pillars and the second conductivity type first pillars being correspondingly disposed and connected to the corresponding second conductivity type first pillars. This invention has the effect of reducing uneven electric field distribution and reducing electromagnetic interference.

The utility model belongs to the technical field of spraying devices, and particularly relates to a tire capsule spraying machine which comprises a platform. A plurality of stand columns are fixedly connected to the top of the platform. A top plate is fixedly connected to the tops of the stand columns. The top of the top plate is fixedly connected with a first motor; the output end of the first motor is fixedly connected with a rotating shaft; the rotating shaft is rotationally connected with the top plate; the end part of the rotating shaft is fixedly connected with a loading seat; a rubber capsule is mounted in the middle of the loading seat; the top of the top plate communicates with a liquid inlet valve; according to the rubber capsule surface isolation device, the scraping blade is arranged, the scraping blade can scrape and sweep the surface of the rotating rubber capsule, the surface of the rubber capsule is flattened, an isolation agent is more evenly distributed on the surface of the rubber capsule, and the problems that the isolation effect is poor, demolding is affected in the tire vulcanization process, and adhesion is generated due to the fact that the isolation agent on the surface of the rubber capsule is not evenly distributed are solved.

The invention belongs to the technical field of blast furnace blast, and relates to blast furnace uniform blast equipment and method for changing the inclination angle of a hot air branch pipe. The hot air branch pipes are evenly distributed in the circumferential direction of the bustle pipe, meanwhile, the inclined included angle alpha is formed between the axis of the straight pipe section of each hot air branch pipe and the radial plane of the bustle pipe, and due to the design, right-angle turning in the hot air flowing process is structurally reduced, pressure loss and vortex dissipation caused by the right-angle turning are reduced, and the heat exchange efficiency is improved. The main guide direction of the original tangential flow speed of hot air in the hot air bustle pipe is maintained, it is guaranteed that the air quantity entering all the branch pipes is basically consistent, the air quantity distribution uniformity of all the tuyeres of the blast furnace is remarkably improved, and good flow stability and adaptability are achieved. Numerical simulation verifies that the comprehensive blast uniformity is optimal under the working condition that the hot air branch pipe is inclined by 75 degrees. The blast furnace can effectively improve blast uniformity, reduce airflow deviation and energy loss and improve the stability and smelting efficiency of the blast furnace, and has good industrial application value.

The utility model belongs to the technical field of agricultural planting, particularly relates to a multifunctional fertilizing and ridging seeder, and aims to solve the problems that the conventional agricultural implement is single in function, inconvenient to adjust ridge spacing during working, asynchronous in fertilizing and seeding, complex in structure, high in maintenance cost and the like. The supporting frame is composed of two supporting rods and two connecting plates, the two supporting rods are located between the two connecting plates, and the two ends of the two supporting rods are fixedly connected with one sides of the adjacent connecting plates respectively to form a rectangular supporting frame. According to the multifunctional fertilizing, ridging and seeding machine, the distance between the moving assemblies is adjusted through the double-thread screw, and rapid and convenient adjustment of the ridge distance can be achieved; synchronous belt transmission can ensure collaborative operation of seeding and fertilizing and guarantee the seed-fertilizer feeding proportion; the cam connecting rod mechanism controls intermittent quantitative output of the fertilizer, the sowing wheel discharging groove achieves uniform distribution of seeds, and it is guaranteed that the sowing quality is stable.

The utility model relates to the technical field of experimental equipment, and discloses an experimental fermentation tank which comprises a connecting frame, moving wheels are mounted at four corners of the bottom of the connecting frame, a tank body is mounted in the connecting frame, a pressure release valve is mounted at the top of the tank body, and a heating groove is formed in the tank body. By arranging the lifting assembly, when heating is needed, a power source is started, a heating component starts to provide heat, then a driving motor is started, the driving motor drives a driving bevel gear to rotate, a driven bevel gear drives a long rod to rotate, and then a cam continuously rotates and continuously strikes the inner wall of a lifting frame; the lifting frame drives the lifting rod to lift and move in the vertical direction, so that the heating component lifts and moves in the vertical direction, the situation of local overheating is avoided, heat on the inner wall of the tank body is distributed more uniformly, and the situation of non-uniform microorganism distribution caused by non-uniform heat distribution is reduced.

The utility model relates to the technical field of copper strip tension force control, and discloses a copper strip tension force control device which comprises a tension rolling machine, a magnetic powder clutch is installed on one side of the tension rolling machine, a rolling shaft is installed on the other side of the tension rolling machine, a copper strip body is sleeved on the surface of the rolling shaft, and the copper strip body is connected with the magnetic powder clutch. The copper strip tension tension control device comprises a tension winding machine, a discharging structure is arranged on the surface of the tension winding machine, the discharging structure comprises a fixing plate, the fixing plate is fixedly connected with the tension winding machine, a motor is fixedly connected to one side of the fixing plate, and a threaded rod is fixedly connected to the output end of the motor. By means of the technical scheme, in the discharging process, the copper strip can be easily pushed down from the reel by evenly pushing the copper strip to move on the surface of the reel, the situation that the copper strip locally bears too large pressure or friction is effectively avoided, uneven distribution of internal stress is reduced, and therefore potential damage is prevented.

The application discloses an aircraft deicing and anti-icing subarea electric heating film optimization production method and relates to the technical field of aircraft deicing and anti-icing. The method comprises the following steps: preparing a standardized electric heating film, simulating and calculating the surface flow field characteristics and the water drop collection coefficient distribution of a wing model by using simulation software, obtaining the chordal width of the aircraft deicing and anti-icing area and the target power density of each subarea, cutting the standardized electric heating film according to the chordal width, using a laser resistance adjusting device to adjust the resistance of each independent heating unit corresponding to each subarea by laser so that the resistance of each subarea reaches the target resistance value, and repairing the windowed part by using UV curing glue after the resistance adjustment is completed, thereby obtaining the optimized electric heating film. While realizing the deicing and anti-icing functions, the method can improve the production efficiency, reduce the heating energy consumption and reduce the harm caused by uneven heating to the fuselage material and the coating.

The invention discloses an optimized production method for an electric heating film of an anti-icing and deicing partition of an aircraft, and relates to the technical field of anti-icing and deicing of aircrafts. The method comprises the steps that a standardized electrothermal film is prepared, simulation software is used for conducting simulation calculation on surface flow field characteristics and water drop collection coefficient distribution on a wing model, and the chordwise width of an airplane anti-icing and deicing area and the target power density of each subarea are obtained; cutting the standardized electrothermal film according to the chordwise width; when the cut electrothermal film is located at the window of each subarea, laser resistance trimming equipment is used for carrying out laser resistance trimming on the resistance of the independent heating unit corresponding to each subarea, so that the resistance of each subarea reaches a target resistance value; and after the resistance adjustment is completed, repairing the windowing part by using a UV curing adhesive to obtain the optimized electric heating film. While the anti-icing and de-icing functions are achieved, the production efficiency can be improved, the heating energy consumption is reduced, and the damage to fuselage materials and coatings caused by non-uniform heating is reduced.

This utility model discloses a plow-type mixing mixer, relating to the field of mixer technology. The utility model includes a base with a mixing drum at its top. A main shaft rotates within the mixing drum. A drive mechanism for driving the main shaft rotation is mounted on the base. The mixing drum has a feed inlet and a discharge outlet. Multiple sets of mixing rods are spaced apart along the length of the main shaft, with adjacent mixing rods staggered relative to each other. Each mixing rod includes a fixedly connected rod body and a plow body. Multiple protruding teeth are fixedly mounted on the top of the plow body along its axis, extending along the length of the plow body. Multiple sets of flying knife assemblies are mounted on the mixing drum, spaced apart along the length of the mixing drum, and staggered from the mixing rods. This utility model, through the arrangement of protruding teeth, mixing rods, and flying knife assemblies, ensures that materials flow without blind spots within the mixing drum, significantly reducing the problem of uneven binder distribution, thereby improving mixing efficiency.

The present application relates to the field of dyeing and printing of textiles, and particularly relates to a parameter configuration method for bio-based nylon fabric digital jet printing sizing, which comprises the following steps: obtaining the moisture absorption, spreading, thermal response, safety threshold and equipment limit data of the bio-based nylon fabric and constructing an initial data set; constructing a material sensitivity index through multi-physical characteristic coupling calculation, combining a safety margin to construct a boundary risk index, and then coupling with the equipment parameters to obtain a safety correction coefficient; using the coefficient to smooth and dampen the correction of the output parameters of the conventional model, obtaining the safety parameters for execution, and completing the critical region configuration. The present application constructs a material sensitivity index through multi-physical field coupling to accurately predict the risk of material critical mutation, and combines the equipment operation parameters to form a safety correction coefficient to continuously correct the theoretical parameters, which overcomes the boundary distortion problem of the traditional model from the mechanism, effectively avoids the process fluctuation and fabric deformation, and significantly improves the printing quality stability.

The utility model discloses an electrical cabinet and an AC-DC conversion device, and belongs to the technical field of electrical equipment, and the electrical cabinet comprises a cabinet body, a first electrical assembly, a first fan, a second electrical assembly and a second fan. The cabinet body is provided with a first air channel, a second air channel, a first air opening and a second air opening, the first electrical assembly and the first fan are arranged in the second air duct; the second electrical assembly and the second fan are arranged in the first air duct; according to the application, the first electrical assembly and the second electrical assembly are respectively arranged in different air channels, so that heat generated by the first electrical assembly and the second electrical assembly is isolated from each other, and ventilation and heat dissipation are performed through air flows in the corresponding air channels; the possibility that airflow entering the cabinet body is distributed unevenly due to different heat is reduced, and the heat dissipation effect on the first electrical assembly and the second electrical assembly is improved.

The utility model relates to building material processing equipment technical field discloses a kind of foamed concrete processing equipment, including mixing drum: the top of the mixing drum is equipped with barrel cover, the surface of the mixing drum is fixed with three support legs, the support leg is with mixing drum as axis of rotation and is circumferentially distributed, the bottom end of the barrel cover is fixed with roller cylinder, the inside of the mixing drum is provided with shaft, the shaft is rotatably connected with the inside of roller cylinder, one end of the shaft extends to the top end of barrel cover, the top end of the barrel cover is provided with motor. The foamed concrete processing equipment, by above setting, can carry out preliminary screening to raw material entering mixing drum, effectively remove impurities, ensure that the purity of raw material entering mixing drum is higher, so as to improve the quality and performance of foamed concrete, pure raw material helps better mixing and foaming, reduces bubble rupture or uneven distribution caused by impurities.