112results about How to "Meet technical needs" patented technology

The invention discloses a microwave dielectric ceramic and a preparation method thereof. The microwave dielectric ceramic is mainly composed of ZrO2, TiO2 and Nb2O5; the microwave dielectric property of the microwave dielectric ceramic can be improved by selectively adding MgO, CoO, ZnO, NiO and MnO2; the chemical constitution formula of the ceramic is xZrO3-YTiO2-zA(1+W)/3Nb(2-w)/2O3; in formula (I), A is one or more elements of Mg, Co, Zn, Ni and Mn; x, y and z are molar ratios, wherein x is between 0.2 and 0.7, y is between 0.2 and 0.6,, z is between 0.1 and 0.2, and, x plus y plus z is equal to 1; numerical range of w is l between 0 and 0.5. According to the microwave dielectric ceramic and the preparation method thereof, the ceramic has the characteristics that the dielectric constant is high, the loss is low, and the temperature coefficient is close to zero, and is liable to sinter; the preparation method has the characteristics that the price of raw materials is low, and a technology during production is simple.

The invention relates to the technical field of forging, particularly to a method for manufacturing a pin shaft through forging, which comprises the following steps of: selecting a proper steel ingot, and repeatedly upsetting and lengthening the steel ingot at the temperature of 1,180-850 DEG C to enable the forging ratio to be not less than 4; then sequentially carrying out performance heat treatment and machining to obtain the pin shaft. The method has the advantages that each performance index of the pin shaft manufactured by using the method satisfies the standard requirement of RCC-M, and ensures the use requirement of the pin shaft for a nuclear power plant, thereby greatly enhancing the security and the reliability and satisfying the technical requirement of such products.

The invention relates to a power grid remote intelligent monitoring system based on Beidou short message communication and a monitoring method. The monitoring system comprises a power grid online monitoring sensor, a control processing module based on an FPGA, a monitoring end Beidou short message communicator, a Beidou satellite, a monitoring end Beidou short message communicator and a power grid monitoring center host. The monitoring method comprises the steps of (1) obtaining power grid online monitoring data; (2) online monitoring and controlling system monitoring the working status of an end device; and (3) a remote configuration and monitoring system monitoring parameters of the end device. The invention, without the transformation of an existing power grid online monitoring sensor and a power grid monitoring and control host, the invention makes use of the dual communication function of a Beidou short message for real-time remote monitoring of a power grid in plateau regions, mountainous areas and the like where communication is inconvenient, and the invention has the advantages of being easy to operate and user-friendly and facilitating the saving of manpower, material and financial resources.

The invention relates to a non-cenosphere light weight cement slurry, which mainly solves the problem that the cement slurry cannot keep the density thereof under a high pressure condition. The non-cenosphere light weight cement slurry is characterized by comprising the following components in portion by weight: 100 portions of cement, 116 to 321 portions of water, 52 to 136 portions of fly ash, 14 to 38 portions of silica fume, 14 to 38 portions of superfine cement, and 6 to 11 portions of early strength agent, wherein the particle diameter of the silica fume (of which the SiO2 content is more than 90 percent) is more than 0 and less than 0.5 mu m, the particle density of the silica fume and the fly ash is 2.0 grams per cubic meter, and the particle diameter of the superfine cement is more than 0 and less than 2 mu m. The light weight cement slurry forms a set of incompressible light weight cement slurry system of which the density is between 1.40 and 1.55 grams per cubic meter through preferentially selecting external additives and applying a grain composition principle, wherein the flowability and the sedimentation stability of the cement slurry are good, the set cement strength is more than 15 MPa and cannot decline at a temperature of 150 DEG C so as to satisfy the technical requirements on oil field exploration and development.

The invention relates to an optimal configuration and operation method for reactive compensation of a wind farm. The optimal configuration and operation method is characterized by comprising the following steps of: (1) analyzing the reactive output characteristics of the wind farm, and installing a reactive compensation device in the wind farm and configuring a volume for the reactive compensation device; and (2) detecting reactive powers of a fan outlet and an interconnection point of the wind farm, and mechanically controlling the static reactive compensation and the dynamic reactive compensation of the wind farm. The optimal configuration and operation method is designed reasonably, the combination operation of the static reactive compensation and the dynamic reactive compensation of the wind farm is realized, and the reactive powers of the wind farm and a power grid are ensured under the optimal condition of the reactive compensation device of the wind farm, therefore the effect of maintaining power grid stabilization is achieved, the reactive compensation property of the wind farm is improved, the reactive compensation equipment investment is reduced, and the reactive compensation economic and technological requirements of the wind farm are satisfied.

The invention relates to a preparation method of a textured AZO (aluminum-doped zinc oxide) transparent conductive film. A high-alkali aluminosilicate glass substrate is subjected to texturing treatment to form a textured structure on the glass surface so as to provide foundation for the subsequent direct growth of the AZO film and the final formation of the textured surface, thereby implementing the textured structure of the directly growing AZO transparent conductive film on the glass surface, overcoming the defects of overhigh requirement for the thickness of the AZO transparent conductive film and waste of etching in the conventional technique of film formation before acid etching, and effectively lowering the production cost. The haze of the AZO transparent conductive film prepared by the method is 10-30%, the visible light transmittance is greater than or equal to 85%, and the square resistance is 8-15 ohm per square.

The invention discloses a method for optimizing the working posture of an industrial robot. The method includes the following steps: establishing a rigidity model in the Cartesian space of the industrial robot; evaluating the directional rigidity of joints of the industrial robot according to the working task type; determining the characteristic points of a robot working task according to the working task type, and through the redundant degree of freedom in the axial direction of a tool of an industrial robot operating system, completing posture optimization of the characteristic points with the optimal directional rigidity performance as an optimization goal; and acquiring the optimal rigidity posture of all the characteristic points, and completing posture optimization of other target points or trajectory difference compensation positions through smoothing processing. By means of the method, selection of the optimal rigidity posture of the whole working task is achieved, rapid optimization of the robot working posture in the complex working task and improvement of the processing performance are achieved, and the technical requirements of the robot in high-precision manufacturingand processing fields such as hole making and milling are met.

The invention discloses a high-Q-value medium-dielectric-constant microwave dielectric ceramic and a preparation method thereof and relates to a microwave dielectric ceramic. According to the invention, a novel material system is adopted as follows: xCaTiO3-(1-x)LaGaO3 (x is 0.66-0.62) microwave dielectric ceramic is obtained by compounding a calcium titanate (CaTiO3) phase with a lanthanum gallate (LaGaO3) phase; the microwave dielectric ceramic comprises the following components by weight percent: 25-35% of CaCO3, 15-30% of TiO2, 20-35% of La2O3 and 10-25% of Ga2O3, wherein the purities of CaCO3 and TiO2 are more than or equal to 99.0%, and the purities of La2O3 and Ga2O3 are more than or equal to 99.9%. The high-Q-value medium-dielectric-constant microwave dielectric ceramic disclosed by the invention is good in microwave dielectric property, simple in production technical process and good in repeatability, can be widely applied to preparation of good-property microwave devices such as a dielectric resonator, a filter and a duplexer and meets the technical requirements of systems such as a communication base station.

The invention discloses a hard disk data protection and recovery method of a Linux platform. The method implements protection and recovery for the data in a file system through a write operation redirection technology based on a hybrid file system, a protection technology based on a read-only compressed file system, an Initrd-based configuration technology for initializing a sub-system when a kernel moves later, a file system quick detection and repair technology and a root file system detection technology based on a file system identifier; and the method transparently protects the file system data of an operating system without using own file system access control of the operating system, records file modifications of the running process and recoveries the data as needed.

A cultivation method for interplanting clover and Polygonatum multiflora under forests, which belongs to the technical field of agroforestry compound management and cultivation, and is characterized in that it includes 1) selection of forest stand and forest land; 2) forest stand treatment; 3) forest land treatment; 4) multi-flower Polygonatum seed stem selection; 5) Shamrock seedling selection; 6) Polygonatum multiflora cultivation; 7) Sanyeqing cultivation; 8) Post-planting management; 9) Harvesting and other steps; , using precise planting techniques such as underground bagging planting, matrix soil mixed with broken tiles, standing vine topping, and quantitative control of vine length, etc. for clover, which not only meets the technical needs of industrial transformation and upgrading, but also saves the cost of forest facilities. It has also greatly improved the comprehensive utilization rate of forest land and the output value per unit area of ​​forest land, and the economic benefits are very significant.

The invention relates to the technical field of gold stamping glue solution, and specifically discloses a gold stamping glue solution and a gold stamping method using the same. The gold stamping glue solution is prepared by mixing and stirring the following raw materials by mass percent: 30%-35% of base glue, 15%-30% of a curing agent, 3%-10% of a brightener, 0.5%-1.5% of an anti-sticking agent, 0-0.1% of a wax agent and 30%-35% of diluents. Technical requirements of the transfer printing technology are satisfied, the products are shining, smooth, clearly patterned and low in cost. Technically, the original mode that the gold stamping glue is spread on a chamois leather is changed into a mode that the gold stamping glue is spread on the back of a gold stamping film paper, thus, twice silk-screen printing processes are omitted, the transfer printing technology is used, the technical effect of the transfer printing technology is as good as that of the technology of performing gold stamping after twice silk-screen printing processes, the manufacturing cost is reduced, and the manufacturing speed is accelerated.

The invention relates to the technical field of forging, in particular to a method for forging a screw and a nut for a steam generator of a pressurized water reactor nuclear power station. The method comprises the following steps: repeatedly performing upsetting-stretching on a suitable steel ingot at the temperature of between 1,150 and 800 DEG C to ensure that the forging ratio is no less than 4; and then sequentially performing property heat treatment and machining after the heat treatment on the steel ingot to obtain the screw and the nut. The method has the advantages that: performance indexes of the screw and the nut meet the requirements of a RCC-M standard; using requirements of the screw and the nut for the steam generator of the pressurized water reactor nuclear power station are met; the safety and the reliability of the screw and the nut are greatly improved, and technical requirements of the products are met.

Disclosed are a device and a method for synchronizing electric arc welding fusion depth information and welding data collection information. The device for synchronizing the electric arc welding fusion depth information and the welding data collection information is composed of a welding cabinet, a scriber, an electromagnetic valve, an air pump, a controller and a scribe board, wherein the scriber is formed by sequentially connecting an air cylinder, a scribing needle fixture and a scribing needle from top to bottom, the air cylinder is fixedly connected with the welding cabinet, and the air pump, the electromagnetic valve and the air cylinder are connected into an air circuit through air pipes. The method for synchronizing the electric arc welding fusion depth information and the welding data collection information includes steps: inputting a control signal of a controller into a control end of the electromagnetic valve so as to achieve air circuit switching, change of moving directions of the scribing needle and control of scratches on the scribe board, generated by the scribing needle; confirming data collection starting and ending positions on a work piece through marks on the scribe board after welding, cutting, polishing and eroding the work piece on a position of the maximum fusion depth along the welding direction, identifying a fusion line and performing fitting, and thereby generating the fusion depth information synchronous with the collection data. The device and the method for synchronizing the electric arc welding fusion depth information and the welding data collection information are used for rapidly measuring the welding fusion depth information offline and synchronizing the welding fusion depth information with the welding data collection information, and thereby can facilitate modeling and control studies, which are related to the fusion depth.

The invention discloses a surfacing treatment method of a winding drum of a wire drawing machine. The surfacing treatment method comprises the following steps of: carrying out cylindrical turning a winding drum body subjected to destressed heat treatment, carrying out sand-spraying oil-removing and water-removing pretreatment on the surface, preheating the winding drum in an electric furnace to be 350-400 DEG C, carrying out automatic surfacing with submerged arcs, stopping the surfacing when a surfacing layer reaches 5-6mm, then carrying out slow-cooling treatment, heating the winding drum in the electric furnace to be 400 DEG C, insulating for 2 hours, cooling along with the furnace, and finally forming the winding drum by turning and grinding. The surfacing treatment method has the advantages that the hardness of the winding drum reaches HRC57-60, the wear resistance is good and the service life is long.

The invention discloses an electrostatic discharge protection structure, which comprises a well region within a substrate, wherein the well region has doping ions of a first conductivity type therein and is electrically connected with a ground terminal; a second doped region within the substrate, wherein the second doped region is located on the surface of the well region, and has doping ions of a second conductivity type therein, wherein a doping concentration in the second doped region is higher than that in the well region; a first doped region within the substrate, wherein the first doped region is located on the surface of the second doped region, and a surface of the first doped region is flush with the substrate surface, wherein the first doped region has doping ions of a first conductivity type therein and is electrically connected with an electrostatic discharge input terminal, and wherein a doping concentration in the first doped region is higher than that in the second doped region, and the doping concentration difference between the first doped region and the second doped region is smaller than that between the second doped region and the well region. The electrostatic discharge protection structure has a low breakdown voltage so as to be improved in a protective capability.

The invention discloses a special round UV cured and hot pressed tag for a resin grinding wheel. The special round UV cured and hot pressed tag comprises a tag body with a circular structure, wherein the tag body is formed by a paper base layer as well as a bottom ink layer and an image-text ink layer which are printed on the paper base layer sequentially. In order to ensure that the hot pressed tag is clear in imprint, is not chalked or cracked and has small color change amplitude at a high temperature, modified ink used in the image-text ink layer is prepared from UV ink, epoxy acrylic resin, polyester acrylic resin, tricarboxymethylolpropane triacrylate, tripropylene glycol diacrylate, benzophenone, 1,2-diphenylethane, methyldiethanolamine, benzenediol, 502 A/B-2 adhesive, pigments and auxiliary additives in proportion. The proper paper base layer is adopted for the hot pressed tag, on the basis of the principle that hot melted chemical molecules are mutually incompatible and with adoption of a UV improved printing technology, the finished tag product is non-toxic, odorless and environment-friendly, and can be compared favorably with a screen plated tag, the cost is reduced by 30% as compared with screen printing cost, and the printing speed is 4-5 times higher than that of screen printing.

The invention discloses a diesel engine silencer used for high-power agricultural machinery, aiming at overcoming the problems of the prior art that the working efficiency of workers and the body health of people are affected. The silencer comprises a silencer air inlet pipe, a silencer shell, a No.1 micro-perforated panel, a micro-perforated pipe, an expansion chamber clapboard, a No.2 micro-perforated panel and a silencer exhaust pipe. The No.1 micro-perforated panel is arranged on the left side in the silencer shell and is welded with the inner wall of the silencer shell, the expansion chamber clapboard is arranged on the right side of the No.1 micro-perforated panel and is welded with the inner wall of the silencer shell, the No.2 micro-perforated panel is arranged on the right side of the expansion chamber clapboard and is welded with the inner wall of the silencer shell, the silencer air inlet pipe is arranged in a front center through hole of the silencer front end cover in the silencer shell, the right end of the silencer air inlet pipe is welded with the center part of the No.1 micro-perforated panel, two ends of the micro-perforated pipe and the No.1 micro-perforated panel are welded width the expansion chamber clapboard, and the silencer exhaust pipe is arranged and welded in a rear center through hole of the silencer rear end cover.

The invention discloses an article code analytic method and an article code analytic system. The method comprises the following steps: a first layer of slave server acquires an article code carried by a code analysis request according to the received code analysis request; judgment is made whether to analyze the article code in the first slave server according to a code system identifier of the article code; and if so, the first slave server analyzes the article code and returns analysis result information, or else the first slave server transmits the code analysis request to a primary server. The system comprises the first slave server and the primary server. The first slave server and the primary server of the system can simultaneously complete the function of unified monitoring and management of article codes and can achieve the effect of sharing the article codes in the first slave server and the primary server, thereby meeting the technical demand of whole-network analysis of the article codes in different code systems.

The invention relates to the technical field of forging, in particular to a forging method of a water supply connecting tube and a secondary side manhole for an evaporator generator in a nuclear power station, which comprises the following steps: selecting a suitable steel ingot, wherein within a temperature range of 1180 DEG C-800 DEG C, the steel ingot is repeatedly upset and stretched so that the forging ratio is not less than 4; and then sequentially carrying out heat treatment after forging, rough machining before heat treatment, performance heat treatment and machining after heat treatment to obtain the water supply connecting tube and the secondary side manhole. The invention has the advantages that the actual grain size of the water supply connecting tube and the secondary side manhole manufactured by the invention is less than or equal to level 5, all performance indices meet the standard requirements of RCC-M and ASTM, the operating requirements of the water supply connecting tube and the secondary side manhole for the evaporator generator in the nuclear power station are ensured, the safety and reliability are greatly improved, and the technical requirement of the products is met.