18results about How to "Maintain mechanical strength" patented technology

The invention relates to a permanent magnet synchronous motor design method based on a multi-objective optimization algorithm, and the method achieves the efficient design and optimization of a permanent magnet synchronous motor through the combination of finite element simulation, multi-physical field coupling analysis, neural network performance prediction, and a hybrid optimization algorithm of a genetic algorithm and particle swarm optimization. The method comprises the following steps: determining a plurality of design targets according to an application scene of a motor, selecting key design variables, performing data cleaning and normalization processing, performing electromagnetic field, thermal field and mechanical field simulation by using a multi-physics field coupled finite element model, predicting the performance of the motor by combining LSTM and Transform neural network models, expanding a training data set through a data enhancement technology, and performing data enhancement on the motor. Finally, a hybrid optimization algorithm combining a genetic algorithm and particle swarm optimization is adopted to carry out global optimization and adaptive adjustment of design parameters, and a Pareto optimal leading edge is utilized to find out an equilibrium solution between design targets, so that the accuracy and efficiency of motor design are improved, and the method is suitable for various motor design scenes.

The invention provides a solid electrolyte and a preparation method thereof, a diaphragm, a battery and power-related equipment, and relates to the technical field of lithium batteries. The solid electrolyte is of a core-shell composite structure with LATP as a core and Mg-Sn alloy as a shell wrapping the outer surface of the core. According to the solid electrolyte with the core-shell structure, the LATP serves as the core, the Mg-Sn alloy serves as the shell, air stability is enhanced, Li2CO3 impurities are prevented from being generated, high ionic conductivity and a wide electrochemical window are kept, and stability and mechanical strength are improved. The corrosion resistance and tear resistance of the alloy enhance the safety of the battery, and the aluminum element in the LATP improves the strength of the alloy and optimizes the performance and charge-discharge efficiency of the battery.

Provided is artificial leather that combines good texture, high wear resistance, and a high-quality appearance without the addition of polyurethane resin. Artificial leather that includes at least a surface fiber layer constituting a first surface, the artificial leather being characterized by the following: the surface fiber layer includes main fibers and a thermoplastic resin; the main fibers have a fineness of 0.01 dtex to 0.5 dtex, inclusive; at least a part of the thermoplastic resin adheres between the main fibers; the thermoplastic resin in the surface fiber layer is such that the distance to which a probe is pushed thereinto under prescribed conditions using an atomic force microscope is 20 nm to 200 nm, inclusive; the number average volume of the thermoplastic resin in the surface fiber layer is 3,500 µm3 to 24,000 µm3, inclusive; the number average volume of the thermoplastic resin in a first surface fiber layer when the first surface is measured by X-ray CT is 5,000 µm3 to 14,000 µm3, inclusive; the volume number density of the thermoplastic resin in the first surface fiber layer is 1.1×1012 / m3 to 3.0×1012 / m3, inclusive; etc.

The invention relates to the technical field of wire enamel preparation, in particular to a preparation process optimization method and system based on high-heat-resistance wire enamel, and the method comprises the following steps: enhancing the stability of a to-be-modified wire enamel material to obtain an original modified precipitate, and performing a stability test on the original modified precipitate to obtain a modified dispersion factor; judging whether the modified dispersion factor is greater than a standard dispersion factor or not, if so, adjusting the modified mixing ratio to obtain an adjusted mixing ratio, and returning to the step of enhancing the stability of the to-be-modified line paint material, and if not, marking the original modified precipitate as a modified line paint material; preparing and coating modified heat-resistant wire paint to obtain a target test wire rod, and performing a high-temperature resistance test on the target test wire rod to obtain the optimal heat-resistant quality. The preparation cost and the preparation complexity of the high-heat-resistance wire enamel can be reduced.

The utility model provides a new energy automobile enhanced heat dissipation cable, which relates to the technical field of cables, and comprises an integral structure and auxiliary structures, and the auxiliary structures are located at the front and rear positions of the top of the integral structure; the overall structure comprises a conductor body, a first heat dissipation layer is fixedly connected to the center of the outer surface of the conductor body, a second heat dissipation layer is fixedly connected to the center of the outer surface of the first heat dissipation layer, and a plurality of evenly-distributed water cooling pipes are arranged on the inner surface of the second heat dissipation layer in a penetrating mode. A user can pour water into the water cooling pipe through the water injection pipeline, the water finally flows into the water cooling pipe and flows through the pipeline, heat generated by the conductor body can be taken away in time, accumulation of heat in the cable is avoided, the heat can be well dissipated through mutual cooperation of the first heat dissipation layer and the second heat dissipation layer, and the service life of the cable is prolonged. Therefore, the overall heat dissipation effect is improved.

This utility model belongs to the field of gasket technology, specifically disclosing a self-tightening sealing gasket with adjustable thickness. The utility model includes a first gasket body and a second gasket body, with a thickness adjustment assembly between them. The thickness adjustment assembly includes a stacking unit and a fixing unit. The stacking unit includes an adjusting piece, which adjusts the thickness by stacking. The thickness adjustment assembly allows for flexible thickness adjustment by increasing or decreasing the number of adjusting pieces, adapting to the installation gaps of different devices. Furthermore, the corresponding insertion structure of the limiting block and the corresponding insertion hole / slot, along with locking bolts, securely fixes the first gasket body, the second gasket body, and the adjusting piece. This ensures both thickness adjustment and overall structural stability, preventing displacement or loosening of the adjusting piece under pressure or vibration, thus maintaining the gasket's mechanical strength and sealing performance.

The present disclosure relates to a liquefied gas storage tank and a ship including the same. A liquefied gas storage tank according to the present disclosure is a liquefied gas storage tank for storing a cryogenic material and includes a primary barrier made of metal to form an accommodating space for accommodating a cryogenic material; a primary insulating wall in which a primary plywood and a primary insulating material are sequentially disposed to the outside of the primary barrier; a secondary barrier provided on the outside of the primary insulating wall; and a secondary insulating wall in which a secondary insulating material and a secondary plywood are sequentially disposed in a stack to the outside of the secondary barrier, wherein the secondary barrier includes a main barrier provided on top of each secondary insulating wall constituting a unit element; and an auxiliary barrier connecting the adjacent main barriers to each other, the secondary barrier is formed of a mixed material of a metal and a non-metal, and the primary insulating wall has a thickness of 66% to 166% of that of the secondary insulating wall in order to lower a thermal stress.

Polymer particles for producing a three-dimensionally shaped article, which are used for producing a three-dimensionally shaped article by a powder bed fusion method and comprise a polyamide, the sphericity of the polymer particles being 80 or more, the average particle diameter of the polymer particles being 1 [mu] m to 100 [mu] m, and the average particle diameter of the polymer particles being 1 [mu] m or more and 100 [mu] m or less. The ratio of the amount of terminal carboxyl groups to the amount of terminal amino groups in the polyamide constituting the polymer particles is 0.01-0.8, and the content of the terminal regulator in the polymer particles is more than 0 wt% and 0.2 wt% or less. According to the present invention, by using polymer particles in which the ratio of the amount of terminal carboxyl groups to the amount of terminal amino groups in polyamide is small and the amount of impurities is small, the surface smoothness and mechanical strength of a molded article can be maintained without mixing a large amount of new polymer particles when reusing and molding a three-dimensional molded article using a large molding machine, and the remaining particles can be easily recovered.

The invention belongs to the technical field of power battery manufacturing, and discloses a power battery low-density high-performance heat-conducting structural adhesive and a preparation method thereof.The heat-conducting structural adhesive is formed by mixing a component A and a component B, and both the component A and the component B comprise modified hollow glass beads; in a heat-conducting adhesive layer formed by mixing and curing a component A and a component B, all organic components participate in a cross-linking reaction of isocyanate and polyol to form an enhanced long-chain interpenetrating reticular macromolecular polyurethane polymer, and a micro-network structure in the heat-conducting adhesive layer is constructed by taking modified hollow glass beads as a framework; large-particle-size modified hollow glass beads and small-particle-size aluminum hydroxide particles are uniformly and firmly coated, pores around the modified hollow glass beads are filled with the aluminum hydroxide particles to form a short three-dimensional heat-conducting channel, and all the components form a nano-micron-scale interpenetrating network in a cured heat-conducting glue layer. Therefore, the heat-conducting glue layer has low density and high heat-conducting property at the same time so as to meet the requirements of weight reduction and efficiency improvement of the electric automobile at the same time.

The utility model relates to the field of crucible fixing, disclose a kind of for electron beam horizontal smelting furnace's crucible fixing structure, including frame, the top of the frame has two groups horizontal crucible, the inner wall of the frame is equipped with multiple groups double-end equal-length stud, the top of the frame is provided with multiple groups first support seat, the top of each group first support seat is respectively provided with a group first crucible pressing plate, multiple groups first crucible pressing plate and multiple groups first support seat are respectively sleeved in the outer wall of a group double-end equal-length stud.The utility model reserves necessary deformation space by the cooperation between groove and crucible outer buckle and crucible inner buckle, effectively relieves the internal stress caused by the difference of expansion coefficient, key components can be reused, not only play to the extreme crucible body life, also greatly reduce the spare parts procurement cost, reduce the risk of damaging crucible due to difficult disassembly, improve the safety and efficiency of maintenance operation.

The invention belongs to the technical field of cranes, and discloses a special high-temperature-resistant crane for a copper melting furnace, which comprises a support frame body, a machine body, a main arm, an auxiliary arm and a lifting appliance, the machine body is arranged at the top of the support frame body, the main arm is arranged at the top of the machine body, the auxiliary arm is arranged at one side of the main arm, the lifting appliance is arranged at the bottom of the auxiliary arm, and a telescopic frame body is arranged at one side of the machine body. A reinforcing plate is fixedly installed at the bottom of the telescopic frame body, through cooperation of a threaded rod, a reinforcing rod, an adjusting block, a micro motor, an adjusting plate, an auxiliary arm, a prompt disc and a fluorescent band, after the micro motor is started, the threaded rod in transmission connection with an output shaft of the micro motor is driven to rotate synchronously, and the problem that a crane is not flexible enough in a narrow space is solved; and the back surface of the fluorescent band and the surface of the prompting disc are mutually bonded, and the fluorescent band can emit fluorescent light in a dark environment, so that nearby workers can be reminded of the position of the crane, and injury caused by mistaken collision is avoided.

The present invention relates to the technical field of bundled three-core cables, and in particular to a bundled three-core cable and a three-hole parallel mold for making the cable, comprising three cables, two adjacent cables being fixed to each other by a rib band, wherein the rib band is provided with a plurality of penetrating lattice strip holes and diamond-shaped holes. The present invention solves the problem that a tool is required to split the rib band during the installation of the existing bundled three-core cable through an innovative rib band structure design. The lattice strip holes and diamond-shaped holes are provided on the rib band. The former forms a plurality of easy-to-tear points, allowing the user to easily tear the rib band without tools, significantly improving the convenience and efficiency of installation; the latter provides a larger space, which is convenient for the user to pinch and tear it with fingers, and at the same time serves as an anchor point for fixing the cable, ensuring stability during the installation process. This design not only reduces the safety risk during the installation process, but also avoids the use of a tool.

The present invention discloses a SOFC or SOEC with a long-life sealing interface and a preparation method thereof, and belongs to the field of fuel cell technology. The sealing interface of SOFC or SOEC is formed by the contact between a sealing layer, a battery cell, and a metal connector. The present invention adopts spinel as a coating material for the metal connector, and adopts a staged heat treatment to form a spinel coating with high density and strong adhesion to improve the durability and overall performance of the metal connector; the present invention also optimizes the sealing layer material system, that is, the sealing layer is prepared by using a SiO2-MgO-Al2O3-SrO-V2O5 system, which not only improves the resistivity of the sealing layer, but also improves its hardness and fracture strength, and at the same time, the thermal expansion coefficient of the sealing layer is matched with the thermal expansion coefficient of the metal connector and the battery cell under the premise of ensuring airtightness, thereby improving the durability of the sealing interface and making it have a long life.

This invention belongs to the field of superconducting wire technology and relates to an enameled superconducting round wire and its preparation method. The invention provides a method for preparing an enameled superconducting round wire, comprising: coating a bare NbTi superconducting wire with 20-25 passes of modified acetal varnish, followed by 5-10 passes of acetal varnish coating; wherein the modified acetal varnish is a mixture of acetal varnish, citrate, and β-cyclodextrin in a mass ratio of 100:0.2-1.3:1-3. The modified acetal varnish provided by this invention, by simultaneously adding citrate and β-cyclodextrin to the acetal varnish, can effectively improve the thermal conductivity and low-temperature resistance of the enameled superconducting round wire.

A salt mist rust-proof corrosion-resistant double-end electronic screw comprises a head end and a containing groove, the containing groove is formed in the inner wall of the head end, a rust-proof mechanism is arranged on the inner wall of the head end, the rust-proof mechanism comprises a sealing ring, the outer wall of the sealing ring is fixedly connected with the head end, the inner wall of the sealing ring is slidably connected with a round rod, and the outer wall of the sealing ring is fixedly connected with the round rod. The end of the round rod is fixedly connected with a push plate, a round wheel is installed on the inner wall of the round rod, and the end of the push plate is movably connected with sponge. Salt-mist-resistant anti-rust oil is injected into a containing groove through an injection pipe, the salt-mist-resistant anti-rust oil can be absorbed and stored by a sponge, an adjusting piece is manually rotated to move downwards at the head end, a round rod is pushed to move on a sealing ring in the rotating process of the adjusting piece, the round rod can push a push plate to extrude the sponge, and then the sponge is sealed. Salt-mist-resistant anti-rust oil is extruded from the sponge, flows into the conveying groove and is conveyed to the surface of the thread section, so that rust prevention and corrosion prevention of the double-end electronic screw are achieved, and decoration and mechanical strength are kept.

The invention relates to the technical field of clustered three-core wires, in particular to a clustered three-core wire and a three-hole parallel die for manufacturing the same, the clustered three-core wire comprises three cables, two adjacent cables are fixed through a rib belt, and the rib belt is provided with a plurality of through dot matrix strip holes and diamond holes. By means of the innovative rib belt structural design, the problem that in the installation process of an existing bundled three-core wire, a cutter needs to be used for cutting a rib belt is solved, dot matrix strip holes and rhombic holes are formed in the rib belt, the dot matrix strip holes and the rhombic holes form a plurality of points easy to tear, a user is allowed to easily tear the rib belt without a tool, and the rib belt is convenient to use. The mounting convenience and efficiency are obviously improved; and the latter provides a larger space, is convenient for a user to pinch and tear by fingers, and also serves as an anchor point for fixing the cable, so that the stability in the mounting process is ensured, and the design not only reduces the safety risk in the mounting process, but also avoids the use of a cutter.

The invention relates to the technical field of plastic processing, and discloses an environment-friendly production process of a low-melting-point plastic product, which specifically comprises the following steps: 1, mixing treatment: mixing plastic raw material particles with an environment-friendly additive in a specific proportion to reduce the melting point of the plastic raw material particles and maintain the physical properties of the plastic raw material particles to obtain a mixed raw material; 2, melting treatment: feeding the mixed raw materials into melting equipment for melting treatment to obtain the raw materials after melting treatment; 3, plasticizing and extruding: plasticizing and extruding the molten raw materials through special processing equipment to form a required plastic product; 4, temperature and pressure control: in the extrusion process, controlling the temperature and the pressure to ensure that the melting point of the plastic product meets the preset low melting point requirement; by means of the process, the problems of energy consumption and environmental pollution in the production process of the plastic product with the low melting point can be remarkably solved, waste generated in the production process is reduced, and the material utilization rate is increased.