30results about How to "Meet performance needs" patented technology

The application belongs to the field of paint, and particularly discloses PU white primer, a preparation method and application thereof. The PU white primer comprises A component, B component and C component. The A component comprises hydroxyl acrylic acid resin, castor oil, dispersing agent, defoaming agent, cyclohexanone, silicon dioxide, titanium white powder, talcum powder, calcium carbonate, butyl acetate, leveling agent, organic tin and propylene glycol methyl ether acetate. The B component comprises butyl acetate, HDI trimer and isocyanate prepolymer. The C component comprises dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate and dimethyl carbonate. The PU white primer has the advantages of water resistance, high temperature resistance, adhesion, adhesion, hiding power and strong flexibility, and has superior comprehensive performance, is green and safe, low in cost, and is very suitable for being used as wood and stone surface primer in kitchens, bathrooms and the like.

This invention relates to the field of photovoltaic cable manufacturing technology, and more particularly to a solar photovoltaic cable and its manufacturing process. The process includes: processing a tin-plated cable core according to a pre-process; extruding the tin-plated cable core through an extruder with preset extrusion parameters to perform a first functional layer extrusion; pre-cooling the extruded cable; determining a second preset pulling speed for the second functional layer extrusion process based on a first excess value when the functionality is deemed unqualified, and further determining a second preset pulling speed based on a first excess value when the functionality is deemed unqualified after the pre-cooling stage; and adjusting the cooling temperature based on a second excess value when the cooling is deemed unqualified, and based on a second excess value when the cooling is deemed unqualified, after the cooling is deemed unqualified. This invention can comprehensively assess the manufacturing quality of photovoltaic cables from multiple dimensions and deeply refine it from a single dimension, and automatically feed back and adjust the parameters for manufacturing photovoltaic cables to improve the stability of the performance and the stability of the manufacturing process of photovoltaic cables.

This invention relates to the field of multimedia video processing and playback control technology, specifically a video segment-level content management and control method and system, comprising: a time-series discrete mapping step: obtaining a server-side rule set and mapping it to a time-series state index structure with video durations divided into discrete-time graticles; an asynchronous look-ahead detection step: calculating the look-ahead time based on the current playback time using an independent asynchronous thread and reading the corresponding graticle data from the bitmap; an instruction generation and caching step: generating instruction objects based on graticle control identifiers using preprocessing logic and pushing them sequentially into an instruction circular queue; and a frame-level synchronous application step: checking the queue during main playback thread rendering, and applying the instruction if the current time matches the instruction trigger time. This invention reduces playback CPU usage, eliminates micro-stuttering caused by main thread blocking, and ensures accurate triggering of control logic at the frame level.

This invention provides a flame-retardant insulating polyethylene material for cables and its application in cables. The flame-retardant insulating polyethylene material for cables comprises the following components in parts by weight: 70-100 parts low-density polyethylene, 10-20 parts high-density polyethylene, 20-30 parts organic flame retardant, 15-25 parts modified inorganic flame retardant, and 1-10 parts additives. The modified inorganic flame retardant is obtained by reacting a silane coupling agent-modified inorganic flame retardant with itaconic anhydride-grafted polyethylene. This invention introduces the modified inorganic flame retardant into the polyethylene chain segment, effectively improving the compatibility between different components and enhancing the bonding effect between multiple substances. This results in a good synergistic effect, endowing the polyethylene material with strong mechanical properties, insulation properties, and flame-retardant properties, meeting the material performance requirements of the cable industry.

This utility model discloses a bearing sealing structure and a generator, belonging to the field of generator technology. The bearing sealing structure includes a front bearing, which is installed on the front end cover by riveting or bearing retainer. The outer ring of the front bearing is tightly fitted with the inner ring of the front bearing housing on the front end cover. The rear end face of the front bearing housing and the rear end component of the front bearing cooperate to form a first sealing structure, which makes the rear end of the front bearing form a relatively sealed space. The generator includes the above-mentioned bearing sealing structure. This design can effectively protect the rear end face of the front bearing, is applicable to most bearing anti-foreign object performance requirements, can effectively prevent foreign objects from contacting the bearing, and has a relatively simple structure. Moreover, this structure does not affect the external dimensions of the existing generator, effectively improving the overall protection performance and reducing costs.

The embodiment of the utility model relates to a ripple suppression circuit with voltage reducing and stabilizing functions, which consists of a signal generator, a current limiting resistor, a capacitor, an adjusting tube, a voltage stabilizing tube, a series feedback resistor, an input side oscilloscope probe and an output side oscilloscope probe, according to the technical scheme provided by the invention, the material cost is reduced and the filtering effect is improved due to mutual coupling of the functions of the elements, and a capacitance amplifier circuit is formed to realize a ripple suppression function. According to the embodiment of the invention, the requirements of voltage regulation, current expansion, response speed adjustment and ripple suppression increase are met, and more performance requirements can be met if corresponding elements are replaced or added.

The present invention provides an epoxy resin composition for sealing, the epoxy resin composition comprising an epoxy resin, a polyfunctional epoxy compound having a polyalkylene glycol chain, and an inorganic filler. The epoxy resin composition has the properties of low viscosity, high glass transition temperature and low elastic modulus, and can inhibit warping under the condition of sealing a large-area substrate.

The application discloses a kind of multi-parameter integrated casing damage detection method and system, it is related to casing detection technical field.The method is by downhole detection system synchronous acquisition vision, deformation, residual magnetism eddy current and positioning data, after pre-processing and multiplex transmission to ground;Ground system completes data restoration, spatial position alignment and feature level fusion, intelligently identifies defect and generates multidimensional defect distribution atlas;Again according to defect comprehensive density and severity grade self-adaptive control downhole instrument speed, finally output integrated detection report.Downhole detection system uses integrated downhole instrument string, integrates multiple detection modules and FPGA+ARM preprocessing unit, cooperates with ground closed-loop control system.The application realizes multi-parameter synchronous detection, multi-source data accurate fusion, defect intelligent identification and adaptive speed regulation, greatly improves detection precision and efficiency, reduces operation cost, and is suitable for integrated efficient detection of oil and gas well casing damage.

The application provides an adsorbing material and a preparation method and application thereof. The adsorbing material comprises activated carbon and an additive material; the specific heat capacity and the thermal conductivity of the additive material are not lower than those of the activated carbon; the additive material comprises one-dimensional fiber material and / or two-dimensional layered material; and the mass ratio of the activated carbon to the additive material is 100:(0.1-10). The additive material in the adsorbing material provided by the application can form a thermal conduction path and a uniform heat storage / heat release network, and the activated carbon is surrounded in the network, so that the desorption performance to oil and gas is enhanced, the residual amount is reduced, and the mechanical performance of the material is improved without affecting the adsorption performance of the activated carbon.

The application relates to the field of lubricating oil, and more particularly to a novel wind power gear oil compound and a preparation method thereof. The novel wind power gear oil compound comprises, in mass parts, at least the following raw materials: a base agent 60-80 parts, an oily agent 1-8 parts, an antioxidant 3-6 parts, an anti-wear agent 3-8 parts and an improver 4-10 parts. The application provides a novel wind power gear oil compound which can be directly used as a wind power gear lubricating oil or used as an additive of other lubricating oil systems, can effectively enhance the extreme pressure resistance, corrosion and rust resistance, low-temperature flow and stability of the lubricating oil under the guarantee of excellent lubricating wear resistance and weather resistance and aging resistance of the lubricating oil, and meets the performance requirements of more complex wind power speed-up gear boxes.

The application relates to the field of epoxy resins, in particular to a flame-retardant high-modulus and high-toughness winding epoxy resin composition and a preparation method thereof, wherein the epoxy resin composition comprises an epoxy resin A component and a curing agent B component; raw materials of the epoxy resin A component include the following components in parts by weight: an epoxy resin mixture 40-50 parts, a flame retardant 35-45 parts, a diluent 8-9 parts, a toughening agent 6-15 parts, and a surfactant 0.5-1 part; wherein the toughening agent is a mixture of core-shell rubber and CNTs in a weight ratio of (5-15):(0.2-1). The application solves the problems of the traditional epoxy resin matrix material in the aspects of high strength and toughness and flame retardancy.

This utility model relates to the field of steering gear housing technology, and discloses a transition structure and a steering gear housing, including a transition interface, which is disposed at one end of the housing. A connecting seat is disposed on the outside of the housing, and the connecting seat is disposed on the outside of the transition interface. The transition interface is provided with a snap-fit ​​component, a multi-layer component, and a buffer component. The snap-fit ​​component is disposed on the transition interface, the multi-layer component is disposed on the snap-fit ​​component, and the buffer component is disposed on the connecting seat. The utility model proposes to achieve rapid and accurate positioning of the multi-layer component and the transition interface through the sliding snap-fit ​​of the positioning groove and the snap-fit ​​rod, effectively avoiding assembly coaxiality deviation and improving torque transmission efficiency. The multi-layer component adopts a multi-cylinder nested tight snap-fit ​​and is combined with a firm pin for fixation, which greatly enhances the connection stability and structural strength. The buffer component relies on the support rod in the support cavity and the outer elastic pad to form a multi-directional buffer to reduce vibration impact, reduce component fatigue wear, and improve assembly convenience.

The application discloses a graphene functionalized reinforced modified polyester fiber and a preparation method thereof. The method comprises the following steps: 1) using dimethyl phthalate, ethylene glycol, a catalyst and a multi-component composite modifier as raw materials to polymerize functionalized modified polyester master batches; and 2) melting and spinning the functionalized modified polyester master batches to obtain graphene functionalized reinforced modified polyester fibers. The self-made multi-component composite modifier is used to prepare the functionalized modified polyester master batches, and then the polyester fibers are prepared, so that the product with excellent mechanical properties, flame-retardant properties, ultraviolet resistance and thermal-oxidative aging resistance can be obtained, the performance requirements of the polyester fibers in larger application scenarios can be better met, and the application prospect of the polyester fibers can be widened.

The application belongs to the technical field of functional polymer materials, and particularly relates to an acid and alkali resistant polytetrafluoroethylene composite material and a preparation method and application thereof, wherein the polytetrafluoroethylene composite material comprises the following raw materials in parts by weight: PFA 89 parts, plasticizer 1-4.5 parts, coupling agent 0.5-2 parts, weathering agent 0.5 part and functional additive 4-9 parts; the functional additive prepared from flake graphite, polyamide acid and PFPE-DMA is uniformly coated on the surface of the PFA and the like in the form of a polar dispersion liquid, can play a role of filling structure and thermal self-polymerization in the PFA melt extrusion molding process, construct a rigid-flexible polymer anti-permeation acid and alkali resistant network, and is suitable for manufacturing complex corrosion prevention parts under extreme working conditions.

The application discloses a high-heat-resistance high-conductivity copper alloy and a preparation method and application thereof. The copper alloy comprises Ag 0.001wt%-0.01wt%, P 0.0005wt%-0.002wt%, X 10.003wt%-0.008wt% and the balance of Cu and impurities. The preparation process of the high-heat-resistance high-conductivity copper alloy comprises smelting, casting, continuous extrusion, solid solution, drawing, low-temperature annealing, sizing and packaging. According to the mass percentage of each element of the copper alloy, ingredients and smelting are carried out. In the low-temperature annealing process, the annealing temperature is 150 DEG C-350 DEG C, and the holding time is 2-10h.

The application belongs to the technical field of cooling pipes, and particularly relates to a lightweight composite cooling pipe, a battery pack and an electric device. The cooling pipe comprises at least a first layer, a second layer and a third layer in sequence from the outside in the radial direction, wherein the first layer comprises a polypropylene material layer and / or a thermoplastic vulcanized elastomer material layer; the second layer comprises at least one foamed thermoplastic vulcanized elastomer material layer; and the third layer comprises a polypropylene material layer, and / or a nylon material layer, and / or a polyethylene layer. The lightweight composite cooling pipe disclosed in the application can reduce the overall density of the cooling pipe while meeting the performance requirements of the cooling pipe through the synergistic design and functional layered design of the multiple layers of materials, and meets the lightweight requirements of new energy vehicles.

The invention provides a light-emitting device detection method and device. The method comprises the following steps: in an independent test mode, sequentially driving a plurality of sub-pixels in a light-emitting device to emit light, and respectively performing an electrical test and a first optical test on the sub-pixels when each sub-pixel emits light to obtain independent test parameters; under the condition that the independent test parameters are qualified, carrying out hybrid test on the light-emitting device, and under the hybrid test mode, simultaneously driving a plurality of sub-pixels in the light-emitting device to emit light, and carrying out secondary optical test on the light-emitting device to obtain hybrid test parameters; and under the condition that the mixed test parameters are qualified, sorting the light-emitting devices based on the independent test parameters and the mixed test parameters.

This invention provides a method for photopolymer 3D printing of high-temperature resistant molds, comprising the following steps: synthesizing a high-temperature resistant photopolymer 3D printing resin, wherein the high-temperature resistant photopolymer 3D printing resin comprises the following components by weight percentage: 50-80% ethoxylated bisphenol A diacrylate, 15-35% ethoxylated trimethylolpropane triacrylate, 3-10% 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, 1-5% filler, and 0-2% additives; constructing a mold model using 3D modeling software, the mold model structure including conformal cooling water pipes; slicing the mold model using slicing software and setting printing parameters to generate a slice file; importing the generated slice file into a photopolymer 3D printing device, using the high-temperature resistant photopolymer 3D printing resin as the 3D printing material, and forming the high-temperature resistant mold using photopolymer 3D printing technology. The method of this invention for photopolymer 3D printing of high-temperature resistant molds can effectively improve the high-temperature resistance and compression resistance of photopolymer 3D printed high-temperature resistant molds.

A semiconductor structure and a forming method thereof, the forming method comprising: providing a substrate, including a substrate and a bottom fin material layer on the substrate, the substrate including a first device region and a second device region; forming a first fin material layer on the bottom fin material layer, the material of the first fin material layer being different from the material of the bottom fin material layer; removing the first fin material layer located at the second device region to form an opening exposing a top of the bottom fin material layer; forming a second fin material layer in the opening; and performing a fin patterning process to pattern the bottom fin material layer into a bottom fin, the first fin material layer into a first device fin standing on the bottom fin of the first device region, and the second fin material layer into a second device fin standing on the bottom fin of the second device region. The formed second device fin and the contact surface of the first device fin with the bottom fin are both relatively flat, improving the height consistency of the second device fin and the first device fin.

The application discloses a semiconductor substrate manufacturing method and a semiconductor substrate, and belongs to the semiconductor field. Two single crystal silicon wafers coated with adhesive phosphorus source are pressed in a back-to-back manner to obtain a laminated silicon wafer, the laminated silicon wafer is put into a diffusion furnace for multi-stage heating, the adhesive phosphorus source on the laminated silicon wafer is reacted to generate phosphorus and silicon dioxide, the phosphorus is diffused into the laminated silicon wafer, the two single crystal silicon wafers form a bonding and an N+ layer under the diffusion of the silicon dioxide and the phosphorus, and a bonded substrate is obtained. The silicon-silicon bonding and diffusion are formed in one step, and the process flow is greatly simplified. When the phosphorus is diffused into the laminated silicon wafer, the diffusion is carried out from the middle interlayer, so that the N-layer thickness of the substrate can reach an ideal state as much as possible, and finally, the device substrate can meet the performance requirement of a product device and the thickness requirement.

The utility model relates to the technical field of carbon black production, in particular to a quenching structure which comprises a reaction section and an original quenching section, and the reaction section is arranged at the front end of the original quenching section; three rows of third quenching spray guns are annularly arranged at the side part of the reaction section along the axial direction, are arranged at equal intervals and are used for injecting quenching water into a reaction area at the rear section of the reaction section; according to the rapid cooling structure and the carbon black reaction furnace with the rapid cooling structure, a new rapid cooling position is designed at the rear section of a reaction section, so that rapid cooling water acts on a reaction area in advance, excessive polymerization is inhibited, and the problems of overlarge primary particles and insufficient surface activity caused by overlong high-temperature retention time in the traditional process are solved.

This invention belongs to the field of environmental dust removal technology, and particularly relates to a method for modifying baghouse filter bags using tobermorite. The method includes the preparation of tobermorite gel, Mn-C–S–H gel, modified Mn-C–S–H gel, tobermorite spun fibers, modified tobermorite filter cloth, and filter bags. Compared with existing technologies, the beneficial effects of this invention are: 1) By modifying the baghouse filter material fibers with tobermorite, the high-temperature resistance and corrosion resistance of the filter bags are improved, increasing their adsorption capacity for carbon dioxide and nitric oxide, thus meeting the performance requirements of baghouse dust collectors. 2) Comparing the modified filter material with the unmodified filter material, the results show that the modified material can increase the CO2 dust removal efficiency by 4 times, and the best NO removal efficiency in flue gas can reach 85%.

The embodiment of the invention provides a descriptor management method, a flash memory controller and a storage medium, and belongs to the technical field of memories. The method comprises the following steps: in response to a write-in request of a descriptor reader, caching descriptor data corresponding to the write-in request into a preset descriptor queue; sequentially reading a third descriptor which is different from an uncompleted descriptor in a preset suspension waiting area in hierarchy information through a task scheduling unit in the flash memory controller; analyzing the operation parameter of the third descriptor through a task analysis unit of the flash memory controller to obtain a plurality of first target task sequences; and when a spliced task sequence exists in the plurality of first target task sequences, extracting a fourth descriptor identified by the same descriptor chain from the descriptor queue through the task scheduling unit. According to the embodiment of the invention, the performance requirement of the flash memory chip can be met for a scene of sequential execution of multiple descriptors.

The embodiment of the present disclosure discloses a data transmission system. The system comprises a host and a PCIe device, the host is provided with a first CPU, and the PCIe device is provided with a second CPU and an EDMA module; wherein the first CPU and the second CPU perform at least one data transmission task for target data to be transmitted through the EDMA module. The embodiment of the present disclosure can meet the performance requirements in complex scenarios such as multi-task and multi-core processor based on single-sided EDMA integrated architecture, and reliably realize data transmission between the host and the PCIe device, and the hardware cost is significantly reduced. At the same time, the difficulty of software development and maintenance is significantly reduced, and the resource conflict or synchronization hidden danger is greatly reduced, the problem that the transmission reliability cannot be guaranteed due to the error of transmission logic is solved, and the transmission efficiency is improved.

The present application relates to a new type of electronic music pipe, which is innovatively designed on the basis of traditional electronic blowing pipe, characterized by a blow nozzle-free structure, which completely changes the playing method and sanitary conditions, significantly reduces the requirement for breath control, and greatly widens the range of applicable people; the button layout is designed rigorously, the note buttons and auxiliary buttons are distributed reasonably, the layout of the left and right hand areas is convenient for players with different habits to operate, the note buttons are integrated with a force sensor, which is installed at the bottom of the button or below the circuit board, senses the playing force, and further realizes multi-dimensional control of the volume and timbre of the music, and gives the player rich expression; it has professional karaoke function, creates diverse musical atmosphere with the help of advanced audio synthesizer and multi-channel output instrument chip; the internal function corresponding table is open, and the functions of the buttons and voice commands can be personalized set; the electronic music pipe reduces the learning threshold, enriches the music performance, promotes music innovation and technological progress, and widens the application scenarios.

The utility model discloses a vehicle thermal management system which comprises an electric drive cooling system, an air conditioning system and a battery management system. The electric drive cooling system is communicated with the air conditioning system and the battery management system, the air conditioning system is communicated with the battery management system, and the electric drive cooling system, the air conditioning system and the battery management system can be selected according to the working state of the vehicle. The beneficial effects of the utility model are that the front-end module assembly is integrated with an electric drive cooling system radiator, a cockpit refrigeration loop, a first refrigeration loop, a second refrigeration loop and a heating loop, so that the performance requirements of a thermal management system under various working conditions of driving, conventional charging and rapid charging can be met; in addition, through integrated design of the battery management system, the air conditioning system and the electric drive cooling system and in combination with the control strategy of the whole vehicle thermal management system, the performance requirements of the whole vehicle thermal management system under different working conditions can be met, the energy consumption of the thermal management system is reduced, and the cost, weight and whole vehicle arrangement difficulty of the whole vehicle battery thermal management system are reduced.

The invention relates to a cache management method and device. The method comprises the following steps: sending command requests of different data sources to a target node; if response results of at least two command requests returned by the target node are received and the pre-allocated bank addresses corresponding to the at least two command requests are determined to be the same, classifying the at least two command requests into a to-be-postponed command request and a non-postponed command request according to the data source; performing delay processing on a pre-allocated bank address corresponding to the command request to be postponed to obtain a delayed bank address; caching a response result corresponding to the command request to be postponed according to the postponed bank address; and according to the pre-allocated bank address corresponding to the non-delay command request, caching a response result corresponding to the non-delay command request. By adopting the method, high-bandwidth parallel access can be met, and space resources are saved.

The invention relates to the field of high polymer materials, and discloses polyesteramide for a tissue engineering scaffold as well as a preparation method and application of the polyesteramide. The polyesteramide is formed by ring-opening copolymerization of monomers including a monomer A and a monomer B, the monomer A is epsilon-caprolactam and a specific derivative thereof, and the monomer B is epsilon-caprolactone and a specific derivative thereof. According to the invention, the specific monomer A and the specific monomer B are matched with each other, so that the thermoplastic polyesteramide with proper processing temperature can be formed, the thermoplastic polyesteramide has better hydrophilicity and biodegradability, and the mechanical property can be regulated and controlled in a larger range, so that the performance requirements of a tissue engineering scaffold can be better met.

The invention discloses self-compacting concrete for a concrete-filled steel tube column and a construction method, aims to solve the technical problems that the existing self-compacting concrete is easy to generate bubble retention under the constraint of a steel tube, the interface bonding strength is insufficient, and the construction process needs to depend on vibration assistance, and belongs to the technical field of building materials and structure construction. The self-compacting concrete for the concrete filled steel tubular column is prepared from the following components in parts by mass: 380 to 420 parts of cement, 80 to 120 parts of superfine slag powder, 30 to 50 parts of silica fume, 750 to 800 parts of washed river sand, 1050 to 1100 parts of gravel, 8 to 12 parts of polycarboxylic acid type high-efficiency water reducing agent, 5 to 8 parts of modified nano calcium carbonate, 0.8 to 1.2 parts of organic silane defoaming agent and 160 to 180 parts of tap water.