11results about How to "Overcome uniformity issues" patented technology

The utility model discloses a beauty instrument, which comprises a shell, a light-emitting component and a diverging component, and is characterized in that the shell is provided with a light outlet; the light-emitting assembly is arranged in the shell. The diverging assembly is arranged between the light-emitting assembly and the light outlet, light emitted by the light-emitting assembly is emitted outwards through the light outlet after passing through the diverging assembly, and the diverging assembly diverges the light emitted by the light-emitting assembly. According to the technical scheme, the diffusing assembly is arranged in the beauty instrument to diffuse the light rays emitted by the light-emitting assembly, so that the light rays emitted by the light-emitting assembly can be prevented from being gathered on the surface of human skin, and uniform diffusion of the light rays is effectively realized; the problems of non-uniform beautifying effect and skin burning caused by light focusing of a traditional phototherapy beautifying instrument are solved.

The utility model discloses a chuck type pipeline rotating device for assisting pipeline welding, and relates to the field of pipeline welding. The chuck type pipeline rotating device for assisting pipeline welding comprises a supporting unit which mainly comprises a supporting plate, a first supporting rod and a second supporting rod are installed at the bottom of the supporting plate, the bottom of the first supporting rod is connected with a limiting base, and the bottom of the second supporting rod is rotationally connected with a fixing base; a limiting lifting assembly is mounted between the limiting seat and the first supporting rod; the rotating unit mainly comprises a driving motor and a pipeline chuck, and the driving motor and the pipeline chuck are both installed on the top of the supporting plate. According to the chuck type pipeline rotating device for assisting pipeline welding, during welding, through the arranged limiting lifting assembly, a pipeline can be conveniently adjusted to a proper angle, fillet welding is adjusted to be ship-shaped welding, and the defects that during flat fillet welding, undercut is likely to be generated, and weld legs are not uniform are overcome.

The invention belongs to the technical field of synthesis and preparation of aluminum nitride, and discloses a controllable and extensible preparation method of a one-dimensional aluminum nitride nanowire / nanotube, which comprises the following steps: (1) uniformly mixing a solid aluminum source and a solid nitrogen source, transferring the mixture into a rotatable crucible, transferring the crucible into a tubular furnace, sealing the tubular furnace, and carrying out heat preservation for 2-3 hours; vacuumizing and then introducing protective gas; (2) under the condition that protective gas is continuously introduced, the tubular furnace is heated to a preset target temperature for a nitridation reaction, and the nitridation reaction is carried out under the condition that a crucible rotates at a constant rotating speed; and after the reaction is finished, cooling the tubular furnace and stopping the rotation of the crucible to obtain a one-dimensional aluminum nitride nanowire or nanotube product. According to the method, the solid aluminum source and the solid nitrogen source are used as raw materials, and the crucible rotation is introduced during the nitridation reaction to carry out dynamic enabling improvement, so that the single-crystal aluminum nitride nanowire or nanotube with high purity and uniform morphology can be efficiently synthesized.

The present invention relates to the field of spraying equipment, and in particular to a spraying equipment for the production of a medical laser acupuncture therapeutic instrument, including an insert tube and a suction tube. The present invention describes a spraying equipment for the production of a medical laser acupuncture therapeutic instrument, in which a shell is inserted into the insert tube and the suction tube. When the reciprocating spraying mechanism sprays paint on the shell, an electric exhaust fan drives the suction block through the suction tube to perform suction work in the through hole of the shell, so that the paint is sprayed as much as possible into the annular countersunk hole around the through hole of the shell under the action of suction. In addition, the lower inclined plate, the upper inclined plate and the elastic locking piece cooperate to realize automatic control of extension and retraction, so that the suction block is positioned as much as possible in the annular countersunk hole along the through hole of the shell, so that more paint can be sucked. It overcomes the problem that the annular countersunk hole area of ​​the pen holder-shaped shell is easily blocked by the surrounding raised structure, resulting in inadequate spraying and uneven spraying, thereby avoiding a series of usage problems.

This invention provides a nano-tellurium / carbon composite material and its preparation and application. The nano-tellurium / carbon composite material comprises reduced graphene oxide and tellurium nanorods dispersed within the reduced graphene oxide; the tellurium nanorods are embedded within the reduced graphene oxide. This invention uses tellurium hydride as a reducing agent and tellurium source, and GO as an oxidant and loading material, resulting in a uniform distribution of tellurium nanorods within the rGO composite material, overcoming the problems of easy agglomeration and uneven dispersion of nano-tellurium materials. The composite material preparation method of this invention requires only a simple one-step process and can be completed in a short time, solving the problem of complex synthesis processes for various nano-tellurium / carbon composite materials, which is beneficial for the large-scale production of this composite material. Furthermore, this invention uses PVP as a surfactant, which results in the formation of small tellurium nanorods during the reaction process.

The application provides a full-depth foamed asphalt cold regeneration construction method, comprising the following steps: S1, determining mechanical configuration; S2, determining regeneration material mix proportion design; S3, test section construction; and S4, foamed asphalt in-situ cold regeneration construction; in the application, the milling cutter two is far away from the milling cutter one, so that the working depth of the adjusted milling cutter two and the milling cutter two is ensured to be different, and the need of deep pavement milling is met; the adjustable screening mechanism arranged in the application can adjust the size of the screen hole according to the need, so that the need of different sizes during sampling is met, and the convenience during use is improved; the application relates to the technical field of road engineering, in particular to a full-depth foamed asphalt cold regeneration construction method; the application is developed in view of the shortage of the prior art, and a full-depth foamed asphalt cold regeneration construction method is provided, and the application facilitates asphalt pavement repair.

This invention discloses a piezoelectric self-renewing gradient ceramic catalytic membrane and its preparation method, belonging to the field of porous ceramic technology. The method includes the preparation of a porous piezoelectric ceramic substrate, LDH transition layer modification, and catalyst electrophoretic deposition. The catalyst electrophoretic deposition method involves dispersing the catalyst in a solvent, adjusting the suspension to make the catalyst particle surface positively charged, obtaining a catalyst suspension; using a ceramic substrate modified with a positively charged transition layer as the cathode and a graphite rod as the anode, immersing both electrodes in the catalyst suspension, controlling the distance between the two electrodes to 1.4-1.6 cm, connecting a constant voltage DC power supply of 20-40V, and depositing for 5-15 minutes. After deposition, the sample is removed and subjected to post-processing and polarization treatment to obtain the catalytic ceramic membrane product. This invention utilizes fluid pressure fluctuations to excite the piezoelectric effect, achieving in-situ mechanical exfoliation and self-renewal of catalytically activated and surface-deactivated catalysts, significantly improving catalytic efficiency and long-term stability.

This invention discloses a method for preparing high-density titanium alloy billets using a high proportion of recycled scrap, belonging to the field of titanium alloy billet preparation technology. The method includes: process calculation and batching, material pretreatment, weighing and mixing of small-particle materials, high-density billet forming, and billet stacking. This invention overcomes the technical bottleneck of high-proportion scrap pressing by combining small-particle materials with ultra-high tonnage rapid pressing, effectively addressing problems such as poor billet uniformity and poor forming effect, reducing billet density from the usual less than 3.0 g / cm³. 3 Increased to 3.2g / cm 3 The above represents a qualitative leap from difficult-to-form to high-density forming. While ensuring that the addition ratio is not less than 60%, strict particle size control and mixing process guarantee the uniformity of composition. The high-density billet improves the conductivity and melting stability of the electrode, reduces splashing during the melting process, and thus improves the metallurgical quality of titanium ingots.

The invention provides a food dipping sauce preparation device which comprises a tank body, a rotating shaft extending vertically is arranged in the tank body, and stirring blades are arranged on the rotating shaft; the rotating shaft is connected with a first power assembly, and the first power assembly is used for driving the rotating shaft to rotate, so that vortexes are generated in the tank body; a powder supply device is arranged at the top end of the tank body and comprises a rotating seat, a powder inlet channel penetrates through the rotating seat, the rotating seat is connected with a second power assembly, the second power assembly is used for enabling the rotating seat to rotate around the axis of the rotating seat, and the rotating direction of the rotating seat is opposite to the rotating direction of the vortex in the tank body; the bottom end of the powder inlet channel is communicated with a powder guide pipe, the bottom end of the powder guide pipe is communicated with a powder discharging hopper, the powder discharging hopper extends in the radial direction, the end, close to the rotating shaft, of the powder discharging hopper is a discharging end, the powder discharging hopper is connected with a vibration structure, and powder entering the powder discharging hopper is vibrated out of the powder discharging hopper under the action of the vibration structure and falls into the tank body. According to the invention, uneven mixing caused by agglomeration during powder mixing can be effectively avoided.

The invention discloses a device for bearing wear-resistant mixed copper powder, including a dispersion tank, a heating device, a liquid adder, a transmission pipe, a storage box, a nozzle, and a pulser; the liquid storage tank is located above the reaction tank, and the storage box is located below the reaction tank; an agitator is arranged inside the dispersion tank, a powder feed port and a liquid feed port are arranged on the top, and a solenoid valve is arranged at the bottom; the nozzle is located at the bottom of the storage box; the liquid adder includes a liquid storage tank; a flow valve is connected to the bottom of the liquid storage tank; the flow valve is connected to a liquid outlet pipe; the powder feed port and the liquid feed port are respectively provided with a powder feed port cover and a liquid feed port cover; the liquid outlet pipe is inserted into the liquid feed port cover and is located in the liquid feed port; the liquid storage tank is provided with an auxiliary agent inlet and a low boiling point solvent inlet; the outer wall of the liquid storage tank is provided with a heating and heat-insulating layer; the liquid storage tank is provided with an air suction hood, and the air suction hood is connected to the solvent recovery tank through an air pipe. The preliminary dispersion of the auxiliary agent can be achieved by high-speed shearing, and the viscosity of the system can be reduced by heating to help the dispersion of the copper powder and the auxiliary agent.

The present application relates to non-ferrous metal processing technical field, specifically provide a kind of aluminium alloy sheet hot cold die composite heat treatment method.The aluminium alloy sheet hot cold die composite heat treatment method provided by the present application includes the following steps:S1.workpiece is placed in quenching device, and the workpiece is closed and clamped using upper and lower split heating die, is kept at 400-550 DEG C for 5-20min to carry out solid solution treatment;S2.the workpiece after solid solution treatment is transferred to cooling station, and the workpiece after solid solution treatment is closed and clamped using upper and lower split cooling die to carry out quenching treatment, and finished product is obtained;Wherein, the temperature of the upper and lower cooling die is controlled at 15-25 DEG C.The present application is by using the continuous processing mode of upper and lower split hot and cold die combination, so that the effective support of die is obtained in the whole process of solid solution and quenching for sheet, so that the deficiency of traditional air cushion furnace process in plate shape control and performance uniformity is successfully overcome, and then high-quality aluminium alloy sheet with flat plate shape and uniform structure can be stably prepared.