27results about How to "Improve performance parameters" patented technology

The invention discloses a multi-resonant-layer hollow optical fiber applied to carbon dioxide gas monitoring, and relates to the technical field of optical fiber communication. The optical fiber sequentially comprises an outer cladding layer, an inner cladding layer and an air fiber core area from outside to inside in the radial direction of the optical fiber, a plurality of first nested pipe units are arranged between the outer cladding layer and the inner cladding layer, the plurality of first nested pipe units are annularly distributed at equal intervals, and the first nested pipe units are tangent to the outer cladding layer and the inner cladding layer respectively. According to the invention, efficient transmission of light with specific wavelength is realized through the optimally designed resonant structure, interaction with gas molecules is enhanced through the hollow structure, and the optical fiber has the characteristics of low loss, near-zero dispersion and bending resistance, and is suitable for monitoring carbon dioxide gas molecules. The multi-resonant structure of the optical fiber enables the optical fiber to maintain good optical transmission characteristics in a broad spectrum range, and the optical fiber is especially suitable for gas monitoring methods such as laser absorption spectrum and Raman spectrum.

The invention discloses a polyether-ether-ketone-inorganic hybrid modified water-based fluorocarbon floor coating with long and super weather resistance and a preparation method of the polyether-ether-ketone-inorganic hybrid modified water-based fluorocarbon floor coating, and belongs to the field of coatings. The coating comprises a component A and a component B, wherein the component A comprises a water-based fluorocarbon modified polyhydroxy acrylic emulsion, a polyether-ether-ketone modified inorganic silicate aqueous dispersion, yttria-stabilized zirconia composite aluminum oxide mixed slurry and other auxiliaries. And the component B comprises an HDI hydrophilic organic silicon modified polyisocyanate curing agent, an HDI hydrophobic isocyanate curing agent and the like. According to the invention, the high inertia and mechanical properties of the organic high polymer can be highlighted, and the adhesiveness of the organic high polymer to a lower coating film is further improved.

The utility model discloses a microwave oven with an embedded double-layer bottom plate structure, the microwave oven comprises a microwave oven main body and a plurality of electrical components, and the microwave oven main body comprises a bottom plate and a plurality of side panels; the bottom plate comprises a first bottom plate and a second bottom plate, and the second bottom plate is detachably mounted and fixed above the first bottom plate; the second bottom plate is provided with a plurality of installation positions, and the electrical components are correspondingly installed and fixed on the installation positions. The double-layer bottom plate structure is used for installing the transformer, the capacitor assembly and other electrical components of the microwave oven, so that the microwave oven has the advantages of being simple in structure, convenient to assemble and capable of improving production and assembly efficiency; and on the other hand, an existing microwave oven bottom plate structure is improved and optimized in structural design, the installation stability of electrical components such as a transformer and a capacitor assembly can be improved, the second bottom plate can be made of an insulation material different from that of the first bottom plate, the insulation safety is high, and the service life of the microwave oven is prolonged. Performance parameters of microwave oven products are improved, and production cost is reduced.

The invention relates to a beryllium-copper alloy explosion-proof material, a preparation method thereof and application of the beryllium-copper alloy explosion-proof material to an electric tool, and the beryllium-copper alloy explosion-proof material comprises the following components in percentage by mass: 1.95-2.35% of beryllium, 0.6-0.9% of cobalt, 0.2-0.5% of nickel, 0.25-0.5% of chromium, 0.1-0.25% of silver, 0.5-1.0% of titanium, 0.05-0.15% of iron, 0.05-0.15% of aluminum, 0.05-0.15% of silicon, 0.05-0.13% of rare earth lanthanum, 0.03-0.05% of rare earth cerium and the balance of copper. The balance is copper and inevitable trace impurities; a beryllium copper alloy explosion-proof material is subjected to cold forging and pressing, forging and pressing forming, trimming and shaping, and finally high-precision grinding and heat treatment are carried out, so that the explosion-proof electric wrench accessory including a main shaft square tenon, a sleeve type movable plug and a connecting part thereof is manufactured. The raw material ratio of the beryllium-copper alloy is changed, meanwhile, precious rare metal elements, rare earth lanthanum and rare earth cerium are added, the performance parameters are improved through quick lime reduction and cold forging, and then the alloy performance is improved again through two times of heat treatment, so that the main performance parameters of the anti-explosion electric wrench product are improved by 3%-5%.

This invention provides a high-parameter SiC / SiC ceramic matrix composite material, relating to the field of aerospace high-temperature structural materials. This high-parameter SiC / SiC ceramic matrix composite material is composed of a SiC fiber preform, an interface phase, and a SiC matrix; the interface phase is a BN layer or a PyC+BN composite gradient layer; the SiC fiber preform adopts a 3D orthogonal braided or needle-punched structure, with a fiber volume fraction of 45%–55%; the SiC matrix is ​​prepared by a CVI+PIP composite process, with a matrix porosity ≤5%. The preparation method includes four main steps: SiC fiber preform preparation, interface phase deposition, SiC matrix densification, and environmental barrier coating. By optimizing the preform braiding structure, interface phase type, and matrix composition, combined with specific preparation processes, the composite material meets the requirements of high mechanical properties, high high-temperature oxidation resistance, high density, and high thermal conductivity. This preparation method, through CVI+PIP composite process optimization, nano-dispersed phase addition, and gradient interface phase design, overcomes existing process bottlenecks and achieves the industrial-scale preparation of high-performance composite materials.

The invention discloses a bicontinuous phase electrolyte mechanical-electrical performance prediction model construction method, which belongs to the field of solid electrolytes, and is mainly used for predicting mechanical performance, electrochemical performance and mechanical-electrical coupling performance of bicontinuous phase solid electrolytes with geometric characteristics such as different porosities and pore diameters. The preparation method comprises the following steps: firstly, preparing bicontinuous phase solid electrolyte samples with different geometrical characteristics such as porosity and aperture by changing a ratio, and then carrying out structural characterization, mechanical property characterization and electrochemical property characterization on the prepared samples; carrying out three-dimensional entity modeling on the sample piece, and carrying out simulation analysis to obtain required simulation parameters; finally, the relation between the porosity and the pore size and the mechanical property efficiency, the electrochemical property efficiency and the multifunctional efficiency and the relation between the porosity and the average pore size and the mechanical-electrical property change rate are fitted through simulation parameters; and predicting the change rule of the mechanical-electrical performance efficiency and the performance of the bicontinuous phase solid electrolyte under different proportions or geometrical characteristics.

The present invention relates to the field of air conditioning technology, and in particular to an air duct assembly, a cabinet air conditioner indoor unit and a control method. The air duct assembly includes an air duct shell, which includes an upper air duct, an upper fan chamber, an intermediate air duct, a lower fan chamber and a lower air duct connected in sequence from top to bottom. The two upper air ducts of the upper air duct are provided with upper air guide ports, the two lower air ducts of the lower air duct are provided with lower air guide ports, and the two auxiliary air ducts of the intermediate air duct are cross-arranged; the upper wind shield component corresponds to the upper air guide port, and the lower wind shield component corresponds to the lower air guide port; the moving position of the upper volute tongue motion mechanism has a first position in which the upper centrifugal fan arranged in the upper fan chamber discharges air upward through the upper air duct, and a second position in which the air is discharged downward through one of the auxiliary air ducts; the lower volute tongue motion mechanism has a third position in which the lower centrifugal fan arranged in the lower fan chamber discharges air upward through another auxiliary air duct, and a fourth position in which the air is discharged downward through the lower air duct. The present invention can significantly improve the air output of the air duct assembly with a double-suction centrifugal fan.

The invention relates to a method for operating a machine tool (10), comprising the following steps: a) automatically determining a current setpoint of at least one first operating parameter of the machine tool (10); b) automatically determining a current planned production situation of the machine tool (10); c) automatically processing the information determined in steps a and b by means of a data table which associates a value of a first operating parameter of the machine tool (10) for the currently planned production situation and / or a value of a second operating parameter of the machine tool (10) with at least one performance parameter; d) attempting to automatically determine at least one alternative value of the first operating parameter of the machine tool (10) by means of the data table, which at least one alternative value results in a higher value of the performance parameter in the currently planned production situation than the value of the performance parameter in the currently planned production situation having the current setpoint of the first operating parameter of the machine tool (10); e) if the value can be determined in step d), outputting the determined alternative value of the first operating parameter of the machine tool (10) or the determined value of the second operating parameter of the machine tool (10) to the person.

The utility model discloses a production system for continuously preparing a multi-component aramid copolymer, which belongs to the technical field of multi-component aramid preparation devices and comprises a premixing kettle, a continuous reactor and a double-screw reactor which are sequentially connected, the double-screw reactor is connected with a neutralizing tank I through a pipeline I, and an outlet of the neutralizing tank I is sequentially connected with a washing machine and a drying machine; the double-screw reactor is connected with a neutralizing tank II through a pipeline II, an outlet of the neutralizing tank II is sequentially connected with a defoaming kettle, a filter and a spinning solution storage tank, a heat exchanger I is arranged on a pipeline between the premixing kettle and the continuous reactor, and a heat exchanger II is arranged on a pipeline between the continuous reactor and the double-screw reactor. The front end of the continuous reactor and the front end of the double-screw reactor are both connected with a terephthaloyl chloride supply pipeline, the premixing kettle is connected with an auxiliary pipeline and a monomer supply pipeline, the production system provides matched production equipment for continuous preparation of the multi-component aramid copolymer, and stable, continuous, efficient and large-scale production of the multi-component aramid copolymer is guaranteed.

A pTau181 chemiluminescent immunoassay kit for Alzheimer's disease and its preparation method and detection method belong to the field of immunoassay technology. In order to solve the problems of complex operation, high cost, long detection time, low sensitivity and poor precision of the existing Alzheimer's disease detection kit, the present invention includes a magnetic particle reagent, an AE-labeled pTau-181 antibody, and a pTau-181 calibrator. The magnetic particle reagent is a magnetic microsphere suspension coated with a pTau-181 antibody; the AE-labeled pTau-181 antibody is obtained by labeling the pTau-181 antibody with an acridinium ester. The present invention has low sample pretreatment requirements, a simple pretreatment process, can quickly and high-throughput detect a large number of samples, and the inspection method is convenient and easy, filling the gap in the prior art.

The invention provides an IIR digital differentiator-based image edge detection method and system, and the method comprises the following steps: carrying out the normalization of a pixel value of an original image, and obtaining a normalized image; an IIR digital differentiator is used for filtering the normalized image in the rightward direction, the leftward direction, the downward direction and the upward direction, and four sub-images are obtained; pixel points of the four sub-images in the step S2 are combined into one image according to an operation mode; the pixel values of the images obtained through combination in the step S3 are processed in a maximum value normalization mode; and S4, applying a threshold value to the pixel value of the image obtained in the step S4 to obtain an edge image. According to the method, the IIR digital differentiator is used for carrying out edge detection on the image, image edge information is accurately extracted, noise is effectively suppressed, the defects of a traditional method in the aspects of accuracy and noise resistance are overcome, and the method has the advantages of being excellent in performance, high in accuracy, high in noise resistance and the like.

The invention discloses a control method and device of an intelligent terminal, and the method comprises the steps: obtaining the current acceleration information of the intelligent terminal in a current time period; whether a started radiator is installed on the intelligent terminal is judged based on the current acceleration information of the intelligent terminal; if it is determined that the started radiator is installed on the intelligent terminal based on the current acceleration information of the intelligent terminal, the performance parameters of the intelligent terminal are improved to preset performance parameters. According to the intelligent terminal, whether the opened heat dissipation back splint is installed or not is determined through the acceleration information of the intelligent terminal, then the performance of the intelligent terminal is automatically adjusted according to the working state of the heat dissipation back splint, whether the heat dissipation back splint exists or not can be intelligently sensed, the control effect of the intelligent terminal is improved, and the performance of the intelligent terminal is exerted to the maximum extent.

The application discloses a kind of high flash point low-loss engine oil preparation process, and the product belongs to the field of lubricant production.The engine oil is formed by high flash point base oil, additive compound after removal of low flash point volatile component by heating vacuum, removal of light component again and filling, and the base oil flash point is greater than or equal to 220 DEG C, NOACK evaporation loss is less than or equal to 8%.The preparation process includes: screening high flash point low-volatile base oil, heating to 50-150 DEG C and removing light component under negative pressure vacuum.The light component is removed from the additive under negative pressure vacuum.The treated base oil is mixed with the additive in proportion, and then vacuum light removal and degassing are carried out at 50-150 DEG C, and the finished product is filled into the pipeline of the displacement filling machine after full replacement.The application significantly improves the flash point of engine oil and reduces volatile loss by the whole-process light removal process, which can greatly reduce the load of engine oil gas separator, improve separation efficiency, solve the problems of high engine oil consumption, poor high-temperature resistance, easy oxidation and deterioration, and high oil sludge and carbon deposition.

The present invention discloses a glue-wetting wire binding machine, comprising a frame, a driving spindle is arranged on the frame, a clamp is arranged on the end of the driving spindle, a wire passer and a glue storage device are also arranged on the frame, the wire passer and the glue storage device are connected, a lateral moving mechanism is arranged between the wire passer and the frame, the glue storage device is connected with a pressurizing mechanism, and the wire passer is connected with a heater. The present invention can reduce the size of the motor, especially the size of the rotor, has a simple production method, low cost, and reliable and stable quality.

The present invention provides a single-horizontal-shaft stirring UHPC stirring production complete set of equipment including: a feeding system, a lifting mechanism powder feeding system, a water and additive adding system, a steel fiber feeding system and a single-horizontal-shaft stirring system; the feeding system includes at least one set of aggregate lifting system, a metering bucket, and a mixed material horizontal conveying device; the lifting mechanism powder feeding system includes a first feeding pipe, a first powder bin group, a weighing bucket, a second feeding pipe and a second powder bin group, and the water and additive adding system includes an admixture storage tank, a water supply device and an admixture mixing and dissolving device; the steel fiber feeding system includes a first steel fiber metering lifting device, a first steel fiber sieve distributor, a second steel fiber metering lifting device and a second steel fiber sieve distributor; the stirring system includes at least one single-horizontal-shaft mixer. All performance parameters have been significantly improved, indicating that the optimization of production process and equipment structure has a significant effect on improving product quality.

The invention discloses a fuel cell bipolar plate structure, a design method, equipment and a medium, belongs to the technical field of fuel cells, and aims to solve the technical problems that all regions of a fuel cell bipolar plate adopt a unified flow field design in the prior art, the production cost is high, and the overall efficiency of a system needs to be improved. The structure comprises a cathode plate, the cathode plate comprises at least two areas, and in the at least two areas, spoilers with different numbers and densities are arranged on flow channels of different areas. Through the structure, the production and manufacturing cost is reduced, and the overall efficiency of the fuel cell is improved.

The invention discloses a composite passivation layer modified trans-perovskite solar cell and a preparation method thereof. The perovskite solar cell structurally comprises a substrate electrode, a hole transport layer, a perovskite layer, a composite passivation layer, an electron transport layer, a hole barrier layer and a metal electrode which are sequentially stacked. The composite passivation layer is inserted between the perovskite layer and the electron transport layer by adopting a solution method, and the composite passivation layer can passivate bulk phase and surface defects of the perovskite layer, reduce non-radiative recombination centers, improve the electron transport efficiency between the perovskite layer and the electron transport layer, and finally obtain the efficient and stable perovskite solar cell.

The invention provides a front-back mixing combined type abrasive water jet mechanism and a method thereof.The front-back mixing combined type abrasive water jet mechanism comprises ultrahigh-pressure water jet devices, a plurality of high-pressure abrasive water jet devices and a jet mixing acceleration device, and the ultrahigh-pressure water jet devices and the jet mixing acceleration device are arranged; the water jet device and the ultrahigh-pressure water jet device are obliquely arranged; the jet mixing acceleration device comprises a mixing cavity, a mixing jet nozzle and a locking assembly, a plurality of mounting holes are formed in the mixing cavity, one mounting hole is communicated with the ultrahigh-pressure water jet device, the other mounting holes are connected with the corresponding high-pressure abrasive water jet devices, and at least one high-pressure abrasive water jet device is communicated with the mixing cavity. According to the invention, the pre-mixed abrasive water jet is firstly formed, and then the ultrahigh-pressure water jet with higher speed is formed to perform secondary acceleration on the pre-mixed abrasive water jet, so that the speed of abrasive particles is remarkably increased, and the jet cutting effect is improved.

The invention discloses a three-phase special-shaped interface assembly and a matched assembly structure thereof. The input end of the interface assembly is connected with AC380 for power supply, and the output end of the interface assembly is connected with a high-power power supply complete machine system through a complete machine switch; the interface assembly comprises an interface box seat, a three-phase input interface board and an interface box cover. The three-phase input interface board comprises a five-pole THT needle type socket, and the socket corresponds to a one-wire hole type plug; five poles of the THT pin-type socket are respectively connected with L1, L2, L3, N and PE lines, electromagnetic interference filter capacitors are respectively connected between the L1, L2, L3 and N lines and the PE line, and capacitors and resistors are respectively connected in parallel among the L1, L2 and L3 lines. The electromagnetic compatibility anti-interference compatibility is strong, the practicability is strong, the operation is simple, convenient and safe, the working hours are saved, the production efficiency is greatly improved, the manufacturing cost of the product is reduced, and the qualified rate of the overall quality of the product is also improved.

The invention relates to the technical field of glass sealing, in particular to glass powder and glass for titanium alloy sealing and a preparation method and application of the glass powder and the glass. The glass powder for sealing the titanium alloy is prepared from the following raw materials in percentage by weight: 18%-35% of SrO, 17%-35% of BaO, 14%-25% of B2O3, 16%-26% of Al2O3, 1%-2% of ZrO2 and 5%-6% of CaF2, the expansion coefficient alpha of the prepared glass powder for sealing the titanium alloy is 94 * 10 <-7 > / DEG C to 102 * 10 <-7 > / DEG C, and the transformation temperature Tg is 544 DEG C to 587 DEG C. Glass prepared from the glass powder prepared by the invention is excellent in performance, a final sealing element finished product can be obtained after the glass powder is sealed with a titanium alloy, nitriding treatment and laser cleaning are not needed, the production efficiency is high, the production cost is low, and in addition, the sealing element finished product has good mechanical performance and sealing performance.

The application provides a compressor non-axisymmetric end wall shaping method based on an adjoint shape optimization, and belongs to the technical field of aero-engine compressor design, in particular to: taking an axisymmetric end wall compressor as an optimization object, sequentially completing a cascade single-channel original geometric model establishment, structured grid division, obtaining the isentropic efficiency of the compressor designed by using the axisymmetric end wall through flow field simulation, establishing an optimization target and a constraint condition, solving the sensitivity of a design variable based on an adjoint shape optimization method, arranging control points on the outer surface of the end wall, combining the total displacement amount of the control points with the sensitivity calculation, realizing the end wall grid deformation through a radial basis function, iteratively optimizing the performance of the current end wall geometric configuration through simulation verification, and until the end wall meets the optimization target and the constraint condition. The application improves the optimization efficiency and shaping precision of the compressor end wall, improves the isentropic efficiency of the compressor, and guarantees the stability of the performance parameters of the optimized compressor.

An explosion-proof type explosion-proof electromagnetic valve comprises a magnetic conductive shell, an electromagnetic valve body, an electromagnetic valve body and a control device, an installation cavity is formed in the magnetic conductive shell, and the magnetic conductive shell is an electric conductor with magnetism; the driving assembly comprises a coil main body which is arranged in the mounting cavity; the explosion-proof coil is characterized in that the coil main body is wrapped and filled with an explosion-proof layer formed by an insulating heat-resistant material; the coil main body is electrically connected with the magnetic conductive shell, and the magnetic conductive shell is grounded; and the magnetic conductive shell is matched with the height of the coil main body and wraps the coil main body. According to the flame-proof type explosion-proof electromagnetic valve, the coil main body can take the magnetic conductive shell as a dielectric medium to realize grounding, so that the space for arranging a flame-proof shell and a wire holder is saved, and the volume miniaturization arrangement of the flame-proof type explosion-proof electromagnetic valve is facilitated; and meanwhile, the explosion-proof layer in the magnetic conductive shell also enables the explosion-proof capability of the magnetic conductive shell to be stronger, so that the magnetic conductive shell has the functions of explosion suppression and magnetic conduction at the same time, and has the advantage of dual purposes.

This utility model discloses a novel motor rotor, including a rotor core. Multiple magnetic slots for accommodating magnets are evenly distributed circumferentially on the rotor core. The outer circumferential contour of the rotor core is composed of alternating arc-shaped segments and recessed segments connected end-to-end. Each recessed segment consists of two symmetrically arranged, inwardly recessed stepped structures, forming a slot between the two stepped structures. The stepped structure includes an outer inclined portion, a platform portion, and an inner inclined portion connected sequentially from the outer circumference of the rotor core towards the center. The outer inclined portion and the platform portion have a first preset angle. By optimizing the magnetic circuit structure and external contour design of the rotor core, the magnetic field distribution is more concentrated, reducing magnetic leakage, decreasing the amount of permanent magnets used, saving production costs, and reducing the overall weight of the rotor. This effectively improves the motor's operating efficiency and power density, enhances the motor's overall performance parameters, and strengthens the product's market competitiveness.

The present invention provides a planetary stirring UHPC mixing production equipment including: a feeding system, a lifting mechanism powder feeding system, a water and additive adding system, a steel fiber feeding system and a single horizontal shaft mixing system; wherein the feeding system includes at least one set of aggregate lifting system, a metering bucket, and a mixed material horizontal conveying device; the lifting mechanism powder feeding system includes a first feeding pipe, a first powder bin group, a weighing bucket, a second feeding pipe and a second powder bin group, and the water and additive adding system includes an admixture storage tank, a water supply device and an admixture mixing and dissolving device; the steel fiber feeding system includes a first steel fiber metering lifting device, a first steel fiber sieve distributor, a second steel fiber metering lifting device and a second steel fiber sieve distributor; and the mixing system includes at least one planetary mixer. All performance parameters have been significantly improved, indicating that the optimization of production process and equipment structure has a significant effect on improving product quality.

The utility model relates to a lithium battery electromagnetic induction heating device and a temperature control circuit thereof. The device comprises an oven, a plurality of guide rails symmetrically and fixedly arranged on the inner wall of the oven in parallel, a battery heating tray assembly borne by the guide rails, vacuum equipment and a temperature control circuit, the heating tray assembly is composed of a battery heating tray, a square shell lithium battery placed on the battery heating tray, four interlayers which are arranged in the battery heating tray and are used for mounting excitation coils, and a heating plate; a magnet exciting coil in the battery heating tray is connected with an alternating current power supply to generate variable current, then a variable magnetic field is generated, a battery on the upper portion of the battery heating tray generates eddy current under the action of the magnetic field, and the lithium battery is heated through the Joule effect generated by the eddy current.

The invention provides an interactive multi-model extremum search control method and system for vehicle damping, and the method comprises the steps: obtaining vehicle operation state data, so as to solve vehicle state parameters; establishing a system model based on the discrete space model, and respectively setting vehicle motion state models in the system model for at least two road surface non-uniform excitation situations; in combination with an interactive multi-model IMM and an extremum search control model ESC, an interactive multi-model extremum search control IMM-ESC algorithm is constructed and used as a control strategy. The technical problems that the dependence degree on the number and precision of the sensors is high, the system calculation burden is heavy due to processing of complex data fused by multi-sensor data, the damping effect of the vehicle is restricted, and the vehicle cost is high are solved.

The present invention provides a complete set of vertical shaft stirring UHPC stirring production equipment including: a feeding system, a lifting mechanism powder feeding system, a water and additive adding system, a steel fiber feeding system and a vertical shaft stirring stirring system; wherein the feeding system includes at least one set of aggregate lifting system, a metering bucket, and a mixed material horizontal conveying device; the lifting mechanism powder feeding system includes a first feeding pipe, a first powder bin group, a weighing bucket, a second feeding pipe and a second powder bin group, and the water and additive adding system includes an admixture storage tank, a water supply device and an admixture mixing and dissolving device; the steel fiber feeding system includes a first steel fiber metering lifting device, a first steel fiber sieve distributor, a second steel fiber metering lifting device and a second steel fiber sieve distributor; and the stirring system includes at least one vertical shaft stirring mixer. By adopting the production process and equipment of the present invention, various performance parameters are significantly improved, which has a significant effect on improving product quality.