27results about How to "Fix production issues" patented technology

The invention relates to the field of molecular photoelectric devices, and provides a single photon source based on an up-conversion photoelectric device and a preparation method thereof, and the preparation method comprises the steps: preparing a dielectric layer; preparing a graphene array electrode on the dielectric layer; constructing a graphene nano gap point electrode pair; placing the graphene nano gap point electrode pair in a two-neck flask, adding 1-(3-dimethylaminopropyl)-3-2-ethylcarbodiimide hydrochloride and an up-conversion luminescent molecule A part into the two-neck flask, adding anhydrous pyridine into the two-neck flask in a nitrogen environment, and stirring to obtain a graphene nano gap point electrode pair; and putting the device connected with an up-conversion luminescent molecule part A at two ends and an up-conversion luminescent molecule part B containing lanthanide metal into a tetrahydrofuran solution for molecular system chelation to obtain the single-molecule up-conversion photoelectric device containing the chiral group. A liquid metal Ga2O3 protective layer is plated on a single-molecule up-conversion photoelectric device, so that a single photon source is obtained, and the stability and the anti-interference capability of the single photon source are enhanced.

A nozzle embedded type 3D printing device for a thermosetting wood-plastic composite material belongs to the technical field of 3D printing, and comprises a rack, and an extrusion movement mechanism, a powder laying mechanism, a powder bed mechanism, a printing platform movement mechanism and a binder feeding system which are arranged on the rack, and the extrusion movement mechanism is fed through the feeding system. The printing efficiency of existing printing equipment can be improved, the manufacturing and maintenance cost of the existing equipment is reduced, the accuracy and consistency of a printing structure are ensured, and printing of a high-precision complex structure is achieved; the provided equipment combines the advantages of extrusion type printing equipment and a powder bed structure, the requirement of single extrusion printing for the formability of extruded materials is met, controllable printing of large-flow, high-viscosity and large-layer-thickness printing shapes and precision is achieved, the equipment is suitable for various types of binder materials, the variety and size range of powder bed materials is large, and the equipment is suitable for large-flow, high-viscosity and large-layer-thickness printing. And the rapid part forming machining requirements of wide material application range, large forming size and high part strength are met.

The invention discloses a UV-CIPP material for pipeline repair and stress monitoring and a preparation method of the UV-CIPP material, and belongs to the technical field of intelligent materials. The preparation method comprises the following steps: respectively diluting MWCNT slurry according to a certain proportion; soaking the glass fiber in the dipping solution for a period of time, taking out and drying; coating two ends of the dried glass fiber with conductive silver adhesive, and pasting a copper electrode after curing; adding a thermal initiator into the ultraviolet curing resin; respectively preparing test pieces with different resin contents; and sequentially carrying out ultraviolet curing and thermocuring on the prepared test piece. The characteristics and advantages of the ultraviolet curing resin, the glass fiber and the resin material are combined, and the preparation problem of the ultraviolet curing composite material for repairing the intelligent pipeline, which does not influence the mechanical property of the material and can realize excellent monitoring capability, is solved.

The invention discloses preparation of a titanium-based composite material continuous core net structure wire material for fuse wire additive manufacturing. Comprising the following steps: taking a titanium belt as an external titanium shell, and taking fine net-shaped titanium-based composite material composite powder as filling powder; and the titanium shell and the filling powder are rolled in a sealed mode, drawing and diameter reducing are conducted, a continuous core net structure wire is formed, and then the in-situ synthesis reinforced titanium-based composite material is prepared through a fuse wire additive manufacturing method. According to the method, the in-situ synthesis reaction of a reinforcement body of the continuous core net structure wire in the melting process is fully played, matrix grains are refined, the organization structure and the size and distribution of the reinforcement body are accurately regulated and controlled, the comprehensive mechanical property of the additive manufacturing titanium-based composite material can be improved, and the method has the advantages of being high in design freedom degree, high in material utilization rate and the like; and a new method is provided for integrated preparation of the difficult-to-deform titanium-based composite material complex component.

The invention belongs to the field of EBSD sample preparation, and relates to a method for preparing a metal microwire longitudinal section EBSD sample, which comprises the following steps: thermally embedding a metal microwire to obtain a thermally embedded block; the bottom of the hot inlay block is polished, and after the position traces of the metal microwires are exposed, the inlay block is cut into a plurality of hot inlay small blocks; carrying out cold inlaying on the hot inlaying small blocks by adopting thermoplastic resin to obtain first cold inlaying blocks; carrying out grinding, mechanical polishing and vibration polishing on the to-be-tested surface of the first cold mosaic block to obtain a second cold mosaic block; and heating the second cold mosaic block, and taking out the metal microfilament hot mosaic block to obtain the metal microfilament hot mosaic block. The method disclosed by the invention is relatively high in efficiency, large in effective area, low in preparation cost and wide in applicability, and is particularly suitable for metal microwires which are made of various materials and have the diameter of 100-500 microns. Therefore, the problem of preparation of the longitudinal section EBSD sample of the metal microwire is efficiently solved with high quality.

The invention discloses a large-area batch preparation method of an ultrathin stretchable high-density myoelectrode array, which comprises the following steps of: adhering an ultrathin soft elastic substrate on a releasable supporting layer, and preparing an electrode array and an interconnection wire on the ultrathin soft elastic substrate through silk-screen printing, an interconnection wire area used for being connected with external acquisition equipment is covered with wear-resistant conductive carbon paste and a hard backing material, and a plugging interface is formed in the area; in other areas of the ultra-thin soft elastic substrate, the electrode array is covered with biological conductive gel through a dispensing process, a non-electrode position is covered with a medical double-sided adhesion layer, and an ultra-thin soft sensing part is integrally formed; and a releasable protective layer covers the ultrathin soft sensing part. According to the preparation method, the problems of device wrinkles, difficulty in operation and low yield during large-area preparation of the ultrathin stretchable high-density myoelectrode array can be effectively solved, and reliable batch preparation of the large-area ultrathin stretchable high-density myoelectrode array can be realized.

The utility model discloses a manual bread cutting machine, which relates to the technical field of manual bread making equipment and comprises a mounting base and a mounting handle rotatably connected in the mounting base, and the mounting handle is rotatably connected with two mutually symmetrical transmission plates; according to the bread cutting device, the multiple cutting knife frames are distributed in the length direction of the mounting frame in a linear array mode, bread can be cut into multiple parts through one-time operation, and compared with a traditional mode that the bread is broken through fingers or a common bread cutting tool is used, the cutting efficiency is improved, the batch cutting requirement is met, and manpower and time cost is reduced. And on the other hand, the cutting knife frames distributed in an array mode guarantee the consistency of the cutting effect, the cut bread is uniform in shape and size, and follow-up dish making and presenting are facilitated. The design solves the problem that a common bread cutting tool is difficult to ensure the consistency and stability of the cutting effect, and avoids the influence on the dish quality due to different shapes and sizes of bread.

This invention provides a core box mold for casting large motor bases, belonging to the field of casting mold technology. The core box mold is manufactured based on the five-part structure of a large motor base sand core. The core box mold includes an inner cavity air hole sand core 1# core box for manufacturing inner cavity air hole sand core 1#, an outer cavity sand core 2# core box for manufacturing outer cavity sand core 2#, an outer cavity sand core 3# core box for manufacturing outer cavity sand core 3#, an outer cavity sand core 4# core box for manufacturing outer cavity sand core 4#, and an outer cavity sand core 5# core box for manufacturing outer cavity sand core 5#. These five core boxes are independent of each other. This invention provides a corresponding core box mold comprising five parts for the new integrated sand core structure of large motor bases, solving the manufacturing problem of the new integrated sand core and creating conditions for achieving boxless casting of the base.

The present invention relates to an outdoor floor, in particular to a luminous floor, a manufacturing mold and a preparation method; belonging to the technical field of wood plastic floor. A luminous floor comprises a rigid core layer and a hard surface layer covering at least the upper surface of the core layer, the upper surface of the hard surface layer is provided with a receiving body having a receiving groove; and a luminous strip is also provided in the receiving groove. The present invention provides a receiving body having a receiving groove on the hard surface layer, and provides a luminous strip in the receiving body, so that the fluorescent material is concentrated in the receiving body; since the fluorescent material is not dispersed into the matrix of the floor, the mechanical strength of the entire floor is not affected, and since the fluorescent material is enriched together, only a small amount of fluorescent material is used to create a floor with sufficient fluorescent brightness. This floor not only has the effect of prompting pedestrians at night, but also has a night scene decoration effect due to the sufficient fluorescent brightness.

The invention discloses a weight balancing method for turning a giant guide vane of a water turbine, which comprises the following steps of: 1, determining the center-of-gravity shift direction of the guide vane according to the rotary machining axis of the guide vane; secondly, a balance weight mechanism is arranged on the side opposite to the side where the gravity center of the rotary machining axis of the guide vane shifts, and the balance weight mechanism comprises a balance weight assembly and a connecting assembly for fixing the balance weight assembly to the guide vane; thirdly, the gravity center of the guide vane provided with the balance weight mechanism is measured and adjusted again, and it is ensured that the gravity center of the guide vane is located on the rotary machining axis; and fourthly, the guide vane with the gravity center adjusted is fixed to machining equipment. The weight of the irregular shape of the guide vane can be accurately balanced through the counterweight plate, and the unbalanced torque of rotation can be effectively eliminated through accurate calculation through combination of different shapes. The quality problem and the design and manufacturing of complex tools are solved, and the whole machining process is simplified; the multifunctional turning tool set integrates the shaft body outer circle machining function and the shoulder inner and outer spherical surface machining function, and the lathe turning machining function is achieved on a boring machine.

The application provides a preparation method of ROS-responsive hyperbranched polymer hydrogel and the hydrogel, and belongs to the technical field of hydrogel. Firstly, Michael addition reaction occurs between double bonds on PEGDA and amine groups of chain-like aliphatic diamine with ROS scavenging groups in the structure, and a hyperbranched polymer PBAE is obtained as a crosslinking agent; then esterification reaction occurs between methyl methacrylate and HA to obtain HAMA; finally, HAMA, AM and PBAE solution are mixed, and AHP hydrogel is formed through a one-step free radical polymerization reaction. The preparation method of the AHP hydrogel is simple, the material source is wide, the production efficiency is high, the AHP hydrogel has good mechanical properties, oxidation resistance and biocompatibility, and is easy to produce and prepare on a large scale.

The invention provides a preparation method of hydrogel based on ROS (reactive oxygen species) response type hyperbranched polymer and hydrogel, and belongs to the technical field of hydrogel, the preparation method comprises the following steps: firstly, carrying out Michael addition reaction on double bonds on PEGDA (polyethylene glycol diacrylate) and amido of chain-like aliphatic diamine with ROS scavenging groups in the structure to obtain a hyperbranched polymer PBAE as a cross-linking agent; then, methacrylic anhydride and HA are subjected to an esterification reaction to obtain HAMA, finally, HAMA, AM and a PBAE solution are mixed, and the AHP hydrogel is formed through a free radical polymerization reaction one-step method. The AHP hydrogel is simple in preparation method, wide in material source, high in production efficiency, good in mechanical property, oxidation resistance and biocompatibility and easy to produce and prepare on a large scale.

The present invention belongs to the field of geotechnical testing, and relates to a device for preparing a reshaped clay sample with an inclined deposition surface, which is used to consolidate a fluidized soil sample into a geotechnical sample, and includes a sample molding system, a power drive system, and a consolidation drainage system; the fluidized soil sample is installed in the sample molding system, and the power drive system drives the sample molding system to rotate and generate centrifugal force, and the consolidation drainage system is arranged outside the sample molding system, and the excess water in the sample molding system is discharged through the consolidation drainage system. The present invention can achieve quantitative control of the inclination angle of the deposition surface of the sample, and is suitable for the preparation of reshaped samples; it can also be used in conjunction with existing geotechnical sample preparation technologies (sampling method, coring method, etc.) to solve the problem of preparing hollow cylindrical clay samples with inclined deposition surfaces.

The invention relates to the field of fiber material performance testing, in particular to a preparation method of an intermittently-graphitized pitch-based carbon fiber heat conduction sample and the sample, and the preparation method comprises the following steps: S1, winding raw material fibers according to the composition of pitch-based carbon fibers to be tested; s2, cutting and bundling are conducted respectively, graphite paper is used for wrapping, and then PAN-based carbon fibers are used for bundling; s3, carrying out intermittent graphitization treatment, folding and cutting off, and then trimming; s5, a polyimide adhesive tape is adopted for longitudinal spiral winding, tightening and wrapping to form a cylinder, and then cutting is conducted; and S6, polishing to obtain the asphalt-based graphite fiber heat conduction sample. The asphalt-based carbon fiber is subjected to sample treatment before intermittent graphitization, the sample treatment comprises the processes of unwinding, winding, cutting and the like, and the corresponding processes of fiber bundle binding, cutting and the like are performed after graphitization treatment to prepare the fiber heat conduction sample, so that the asphalt-based carbon fiber is kept in a smooth state after graphitization treatment; meanwhile, the preparation efficiency of the fiber heat conduction sample is improved.

The invention belongs to the technical field of medicines, and particularly relates to an apremilast impurity and a preparation method thereof, the compound can be used as a quality control standard substance of apremilast, and the content of the apremilast impurity can be detected in raw materials and preparations thereof so as to ensure that raw material medicines and preparations meeting medicinal standards are prepared.

The gas processing technology using the grid structure is that a porous grid of a net structure is used as an anode, and the anode and a cathode form an axial gas processing device oppositely. A one-way accelerating electric field is established by controlling the voltage and distance between the cathode and the grid electrode, treated gas axially passes through the grid electrode from the cathode, particles, aerosol and viruses in the gas are adsorbed, the one-way electric field integrating the anode and the grid electrode is achieved, and the dust accumulation efficiency is improved.

The present invention relates to the technical field of composite material manufacturing, and specifically discloses a variable curvature, multi-sag, long-size J-shaped rib curing molding process and device, including a C-shaped paving mold, a Z-shaped paving mold and an edge strip paving mold made of metal material. The present invention adopts an integral metal tooling molding process to replace the molding process of a metal mold and a composite mold or a metal mold and a silicone rubber mold, adopts an integral metal tooling posture to drive the product under the curing pressure, and at the same time uses the C-shaped paving mold to increase the component of its own gravity and coordinate with the Z-shaped paving mold to ensure the molding quality of the R corner area and the surface contour of the edge strip surface.

The preparation method comprises the following steps: uniformly mixing a precursor, a lithium salt and a modifier, heating to the temperature T1 of 750-850 DEG C in an oxygen-containing atmosphere, sintering for the time t1 to obtain a pre-lithiation intermediate, transferring the pre-lithiation intermediate into an environment with the temperature T2 of 10 DEG C or below, and quenching for the time t2 to obtain a process sample A; dispersing the process sample A in an environment at a temperature T3, spraying a nodulizing agent, and drying to obtain a process sample B; in an oxygen-containing atmosphere, putting the process sample B into an environment with a temperature T4 of 850-1000 DEG C, carrying out shock heating, calcining and crystallizing for a calcining time of t3, and cooling to obtain a single crystal positive electrode material matrix C; and carrying out post-treatment on the single-crystal positive electrode material matrix C to obtain the high-fluidity lithium battery single-crystal positive electrode material. The invention solves the problem of poor flowability and the problems of manufacturing and use caused by the problem.

This invention discloses a method for preparing a seven-hole multilayer propellant by end-face spraying, applicable to the end-face sealing of multilayer propellants. The invention employs a honeycomb mold to constrain the propellant columns, enabling the orderly arrangement of the seven-hole multilayer propellant. The larger diameter of the inner holes in the honeycomb mold facilitates filling. A solvent-based swelling and sealing technique ensures a tight fit between the outer wall of the seven-hole multilayer propellant and the inner wall of the honeycomb mold, protecting the outer wall. Using a spraying liquid made of the same material as the outer layer of the seven-hole multilayer propellant forms a protective layer with the same composition as the outer layer on the end face, significantly improving the combustion pyrolysis properties of the propellant. This invention solves the problem of only being able to prepare seven-hole multilayer propellants by end-face spraying, providing a technical means for preparing seven-hole multilayer propellants by end-face spraying.

The invention provides a nine-edge triangular face to T-shaped section steel column structure and a manufacturing method, and belongs to the technical field of supporting components in buildings. Comprising a T-shaped section steel column, a nine-edge triangular mechanism and a sealing plate, the top face of the nine-edge triangular mechanism is a horizontal top face, the bottom of the nine-edge triangular mechanism is fixedly connected with the T-shaped section steel column, and the sealing plate is located in the nine-edge triangular mechanism. The invention has the advantages of high structural stability, small section, large bearing capacity, reasonable space distribution, attractive appearance and the like.

The invention discloses a coreless motor winding manufacturing device and method, and relates to the technical field of machining. According to the specific implementation mode, a winding tool 1, a shaping tool 2 and a forming tool 3 are included, the winding tool 1 is used for winding a single coil, and the single coil is of a rhombic plane structure; pressing the single coil into an arc shape by using a shaping tool 2; and the forming tool 3 is used for gluing, fastening and forming the single coils. According to the invention, the problem of manufacturing the coreless motor winding with a larger wire diameter is solved, a smaller coreless winding can be manufactured, the precision is high, and the operation is convenient.

The invention relates to a hybrid rice sowing strip forming performance evaluation method, device and equipment and a medium, and the method comprises the steps: in a C2f structure in a backbone network of an original YOLOv8n model, replacing a Conv module in a Bottleneck structure with a PConv module to determine a PConvC2f structure, and adding an ECA channel attention mechanism before up-sampling operation of a neck network to construct an improved YOLOv8n model; adopting an improved YOLOv8n model trained to a convergence state to carry out target detection on the seedling tray seeding area image so as to determine coordinate information and types of rice bud seeds in the seedling tray seeding area, and determining the quantity of the rice bud seeds in a strip qualified area in the seedling tray seeding area image according to the coordinate information; calculating and determining the ratio of the quantity of the rice bud seeds corresponding to the qualified strip forming area to the total quantity of the rice bud seeds in the seedling tray sowing area, and taking the ratio as the seedling tray sowing strip forming percent of pass. According to the method, the detection precision and robustness of the rice bud seeds in the seedling tray seeding area can be remarkably improved.

The utility model relates to the technical field of sugarcoating machines, in particular to a self-collection type sugarcoating machine for strange-flavor lima beans, which is characterized in that a rotating cover is opened, water and rock sugar are added into a tank body, the rotating cover is closed, dust is prevented from entering the tank body, the water and the rock sugar are heated by a constant-temperature heating block, and a driving motor is started while heating, so that the strange-flavor lima beans are heated. The driving motor drives the rotating roller to rotate, the rotating roller stirs water and rock sugar, the water and the rock sugar are boiled into sugar water, after the sugar water is boiled, the constant-temperature heating block conducts heat preservation on the sugar water, lima beans and seasonings are added into the sugar-coating pot, the mixing assembly seals the sugar-coating pot, the sugar water is added into the sugar-coating pot through the flow guide component, and the sugar-coating pot is sealed through the flow guide component. The mixing assembly mixes the broad beans and the sweet water, the sweet water is attached to the broad beans to form sugar coatings after being cooled, and then the broad beans are guided out of the sugar coating pot through the discharging component to be stored.

The invention discloses a simethicone emulsion and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. The simethicone emulsion of the invention contains: simethicone, behenic acid glyceryl, lauroyl polyoxyethylene glyceride, a sweetener, a buffer, an electrolyte, an antibacterial agent, a tackifier and a flavoring agent, and the pH value is 4.8-5.2. The preparation method of the invention comprises: mixing simethicone with behenic acid glyceryl to prepare an oil phase, adding water to lauroyl polyoxyethylene glyceride to prepare an aqueous phase; mixing the remaining raw materials with water to prepare an additional liquid; adding the aqueous phase to the oil phase to prepare an emulsified solution, and then adding the emulsified solution to the additional liquid, adjusting the pH value to 4.8-5.2, and adding water to the volume. The method of the invention adjusts the pH after the emulsified solution and the additional solution are fused, so that the pH of the prepared simethicone emulsion is stable, and a stable pH value can still be maintained under long-term or high-temperature conditions. The simethicone emulsion of the invention has good compliance.

The invention discloses a wiring and paying-off device for intelligent power grid line laying, and relates to the technical field of wiring and paying-off equipment.The structure of a wiring and paying-off device for intelligent power grid line laying in the prior art is optimized and improved, and a plurality of spherical guide wheels are matched with one another to guide a cable to stretch; a disposable rubber elastic film with holes is used for replacing a brush to be attached to the cable to uniformly coat the cable with glue; the technical effects of relatively simple structure, low cost, light weight, good gluing uniformity and convenience in use and maintenance of the routing pay-off device for laying the intelligent power grid line are achieved.

This utility model discloses a two-piece straight-through stop valve, relating to the field of stop valve technology. It includes a main valve body, a secondary valve body, a valve stem, a valve cover, and a valve disc. The main valve body and the secondary valve body are locked together by threaded fittings to form the valve body. The valve cover is sealed to the top of the valve body. The bottom of the valve stem penetrates the valve cover and extends into the inner cavity of the valve body. The bottom of the valve stem is coaxially inserted into the valve disc. A cap is used to seal the valve stem and valve disc together. The valve body's structure, consisting of a main valve body and a secondary valve body locked together by threaded fittings, simplifies the fabrication of the fluid flow channels for both the main and secondary valve bodies, thus solving the problem of manufacturing the flow channel for a straight-through stop valve.

The invention provides an integrated satellite-borne four-arm spiral measurement and control antenna, and the antenna comprises an outer conductor which is internally provided with a cylindrical inner cavity, one end of an outer conductor main body is provided with a short-circuit structure, and the other end is provided with a positioning structure; the inner conductor is a strip-shaped cylinder and is nested in the inner cavity of the outer conductor main body, the inner conductor comprises a first conductor section with a first diameter and a second conductor section with a second diameter, the first diameter is larger than the second diameter, a step is formed, the first conductor section of the inner conductor is connected with the short-circuit structure of the outer conductor main body, and the second conductor section of the inner conductor is connected with the short-circuit structure. The second conductor section extends into the positioning structure of the outer conductor and is positioned in the center of the inner diameter of the positioning structure; and the spiral arm is located outside the outer conductor, one end is connected to the base of the outer conductor, and the other end is connected to the end, with the short circuit structure, of the outer conductor. The outer conductor, the inner conductor and the spiral arm are integrally formed through the additive manufacturing process, a positioning medium and an interface medium can be omitted, and the problem that the number of parts of the spiral measurement and control antenna is large is solved.