11115results about How to "Guaranteed service life" patented technology

The invention provides a selective laser melting forming device of a medical magnesium alloy metal part, which comprises a control device, a powder delivering and spreading device, a laser transmission mechanism, an air purification device and a closed forming chamber, wherein the powder delivering and spreading device comprises a hopper and powder spreading brushes arranged on two sides below the hopper, the upper part of the hopper is arranged in a way of corresponding to a feeding opening on the upper part of the forming chamber, and the lower parts of the powder spreading brushes horizontally correspond to the upper surface of a forming cylinder; the laser transmission mechanism is arranged outside and above the forming chamber and is arranged in a way of corresponding to the forming cylinder; the side wall of the forming chamber is provided with an air inlet and an air outlet, and the air purification device is connected with the air inlet and the air outlet respectively; and the control device is connected with the powder delivering and spreading device, the laser transmission mechanism, the forming cylinder and the air purification device respectively. The invention also provides a selective laser melting forming method of the medical magnesium alloy metal part. The device and the method can manufacture parts which have complex shapes required in the medical field directly, and have the advantages of high forming efficiency and the like.

The invention relates to an asphalt warm-mix agent, comprising the following components in percentage by weight: 1.0-2.0% of alkylamine type cationic surfactant, 3.0-5.0% of amide type cationic surfactant, 5.0-10.0% of ammonium salt type cationic surfactant, 1.01.5% of calcium chloride, and water with residual percentage. The invention also relates to an asphalt mixture with the pavement applicability basically same as the traditional hot-mix asphalt mixture and the mixing and construction temperature lower than 20-50 DEG C; the purposes of energy saving, emission reduction, longer construction season, asphalt aging reduction and easier compaction are realized by reducing the mixing temperature; the indexes of the compaction degree, the water stability, the high-temperature performance, the low-temperature performance and the like of the pavement after paving the asphalt are not lower than those of hot-mix asphalt mixture at the same stage; and the service life of the asphalt pavement is efficiently guaranteed.

The invention relates to the field of flexible robots, and discloses a flexible charging robot based on rope driving. The flexible charging robot comprises a plurality of control ropes, a rope driving device, a flexible mechanical arm and an end executor; the control ropes can be driven by the rope driving device to telescope to drive the flexible mechanical arm to bend, and then the end executor installed at the tail end of the flexible mechanical arm is driven to move. According to the flexible charging robot based on rope driving, the charging robot is formed by combining the flexible mechanical arm with a charging head, can adapt to a garage environment which has a narrow working space and many obstacles by combining free bending motion of the flexible mechanical arm and is small in size, low in weight, flexible to move and low in control cost; meanwhile, a motor and a control circuit are far away from the end executor, therefore, the flexible charging robot is not liable to be affected by an outside environment, and the service life of the robot can be guaranteed.

The invention relates to an anti-bending multimode fiber and manufacturing method thereof. The fiber comprises a core and a cladding and is characterized in that the radius of core R1 is 24-26 microns, refractive index section of the core is like a parabola, refractivity maximum delta1 is 0.9-1.1%, the cladding outside the core is composed of three parts, the radius of inner cladding R2 is 1.04-1.6 times of the radius of core R1, delta2 is minus 0.01-0.01%, intermediate cladding is gradually changed in refractive index, the radius of intermediate cladding R3 is 1.06-1.8 times of R1, refractivity is gradually changed into delta4 from delta2, the radius of outer cladding R4 is 2.38-2.63 times of R1, and delta4 is minus 0.20% to minus 0.40%. The invention reduces fiber bending additional attenuation and improves anti-bending performance of fiber but also basically eliminates inner stress of fiber, greatly improves mechanical properties of fiber, and service life of fiber operating in minor radius for a long time also can be guaranteed. The manufacturing method of the invention is simple, convenient and effective and is applicable to mass production.

A vehicle air-conditioner system with a battery heat management function comprises a compressor, a condenser, a first expansion valve and an evaporator. The compressor, the condenser, the first expansion valve and the evaporator are connected in the first flowing direction of a refrigerant to form an air-conditioner refrigeration circulation loop. The vehicle air-conditioner system further comprises a plate heat exchanger, a second expansion valve, an air-water heat exchanger, a fan, a water pump, an electric heater and a battery pack built-in heat exchanger. The fan is arranged on the air inlet side of the air-water heat exchanger. The compressor, the condenser, the second expansion valve and the plate heat exchanger are connected in the second flowing direction of the refrigerant to form a battery cooling low-temperature medium circulation loop. The battery pack built-in heat exchanger, the water pump, the plate heat exchanger, the air-water heat exchanger and the electric heater are connected in the water circulation direction to form a battery temperature adjusting medium circulation loop. According to the vehicle air-conditioner system, uniform management of the temperature inside a vehicle and the temperature of a battery is achieved, a battery pack is in the better temperature environment all the time during working, and it is ensured that the good refrigeration effect is achieved inside the vehicle.

The invention provides an EVA adhesive film without adding uvioresistant absorbent, which is prepared mainly by the raw materials according to the mass ratio as follows: ethylene-vinyl acetate copolymer, 100 parts; peroxide type crosslinking agent 0.1 to 10 parts, phenolic or phosphite type antioxidant 0.05 to 5 parts; and hindered amine light stabilizer, 0.01 to 5 parts. As the ultraviolet absorbent is not used, the EVA adhesive film obtained does not produce ultra-violet cut-off, leads the solar modules to receive UV district light energy, thereby having higher photoelectric conversion efficiency and excellent uvioresistant anti-aging property, and guaranteeing the service life of PV modules.

The invention discloses a water capsule for a three-layer cigarette and a preparation method of the water capsule. Water-soluble essence serves as an inner layer in the capsule, water serving as a solvent dilutes the essence, a middle layer is a sodium alginate complex to wrap the water and the essence, and a third layer is a waxy material to prevent the water from permeating in the capsule. An additive can endow the cigarette with special fragrance and taste or can lower content of harmful chemical components in smoke of the cigarette. The preparation method is simple and easy to implement in process, simple in equipment, capable of being directly used for cigarette processing and convenient for popularization and application. Used raw materials are extensive in source and low in cost.

Provided are a triboelectric nanogenerator harvesting liquid mechanical energy and an electricity generation method. The triboelectric nanogenerator comprises an electricity generation component on an insulation substrate (10) and a friction layer (30) covering the electricity generation component. The electricity generation component is constituted of two electrode layers (21, 22) separately arranged along a liquid fluctuating direction and electrically connected to each other. When the liquid fluctuates or flows, a friction occurs between it and the friction layer, such that the friction layer surface in contact with the liquid carries charges. As the liquid fluctuates or flows, the charges on the friction layer surfaces corresponding to the two electrode layers are successively shielded by ions in the liquid such that an induced charge flow is produced between the two electrode layers. The two electrode layers do not need to move as the liquid fluctuates so as to ensure the service life of the electricity generator. The electricity generator has a light weight, a small volume, a simple structure, and a low manufacturing cost, and is easily produced on a large scale and mounted.

The invention discloses a dry-hanging curtain wall for thermal insulation and decoration and an installation technique thereof, which essentially comprises a 'duplex F' shape installation hanging part; the radial frameworks and the zonal frameworks of the 'duplex F' shape installation hanging part are vertically arranged; a first layer of the radial frameworks with two or more than two layers is level to the zonal frameworks and the radial framework at the last layer is at a certain distance from the tail end of the zonal framework; the width and thickness of the radial frameworks at every layer can be equal or not. Insulation boards can be fixed in a point-typed installation and location method by the installation hanging part, thus overcoming the defects of the prior art, providing an installation technique of the thermal insulation and decoration curtain wall without installing the horizontal and the vertical joist, simplifying the installation procedure, saving the installation raw materials and cost and overcoming the defect that the rain leakage is easy to happen in the splicing seam of the insulation board adopting the traditional method.

The invention provides a lithium ion battery, which comprises a shell, partition plates located in the shell and a blocking mechanism, wherein the internal part of the shell is divided into a plurality of accommodating cavities by the partition plates, the accommodating cavities are internally provided with pole core groups, and each pole core group comprises at least one pole core; the pole coregroups are connected in series; at least one partition plate is provided with an electrolyte injection hole, and the electrolyte injection holes are used for communicating two adjacent accommodating cavities at two sides of the partition plate; the blocking mechanism is located in the shell, the blocking mechanism can enable the electrolyte injection hole to be in a preset state, and the preset state comprises an opening state and a closing state. According to the battery provided by the invention, the isolation and safety of the pole core groups can be ensured while electrolyte injection is facilitated. Meanwhile, the invention also provides a battery module, a battery pack and an automobile based on the battery provided by the invention.

The invention discloses a control method and a device of air-conditioning equipment and an air conditioning system. The control method comprises the following steps of: step S101, carrying out comparison on the water-outlet temperature of an evaporator and set object temperature, and determining the object load value of the compressor of the air-conditioning equipment; step S103, determining the variation of the load value of the air-conditioning equipment according to the object load value and the current load value of the compressor of the air-conditioning equipment; and step S105, adjusting the current load value of the compressor of the air-conditioning equipment according to the determined variation value. According to the invention, an object load is obtained through collecting the backwater temperature of an evaporator, the load of the compressor is adjusted according to the object load, and more accurate reference can be used for rationally adjusting a working mode of an air conditioner compressor; and the frequent adjustment of the compressor is avoided, the display of the system performance is more stable, and the service life of the compressor is guaranteed.

The invention relates to a one-step molding method of a titanium silicalite molecular sieve. The method comprises the following steps of crystallizing the titanium silicalite molecular sieve subjected to hydro-thermal synthesis; directly adding a matrix substance, a binder, a peptizing agent and a pore-enlarging agent without separating, washing and calcining; pulping; performing spray forming; and calcining the formed microspheres to remove a template agent to obtain large formed titanium silicalite molecular sieve particles which can be applied to ammoximation of cyclohexanone and epoxidation of olefin.

The invention discloses a method for controlling a hybrid power vehicle. The method comprises the following steps of: according to the arrangement form of transmission parts of the hybrid power vehicle, dividing operating modes; determining an efficiency calculation formula of each operating mode; and according to the size of a requirement torque Tr and a range of a state of charge (SOC) value of a storage battery, determining possible operating modes, respectively calculating system efficiency in different operating modes, and comparing the efficiency of a hybrid power system in the different operating modes to obtain the allocation situation of engine torques and motor torques with the highest efficiency. In the process of meeting the requirement torque, based on the method for controlling the hybrid power vehicle with the optimum system efficiency, the transmission parts operate in respective high-efficiency areas, so that the overall efficiency of the whole transmission system is maximized, the power loss of the system is reduced, the consumption and discharge of the fuel oil of the whole vehicle are reduced, lubricating conditions are guaranteed to a certain extent, and the service life of the transmission parts is prolonged to a certain extent.

The invention discloses a preparation method of a cellular V-Ti low-temperature smoke denitration catalyst. The catalyst takes nano-grade TiO2 as a carrier and occupies 70-90% of the mass of the catalyst; an active component is V2O5 and occupies 5-15% of the mass of the catalyst; and a metal oxide auxiliary is one or more of oxides of Cr, Mn, Cu, Ce, W and Mo and occupies 4-16% of the mass of the catalyst. A preparation process of the catalyst is formed by a material mixing process and a molding process; the material mixing process comprises a secondary material mixing step and a calcining step; the NOx removing rate is more than 95% by using the activity of the catalyst at a temperature of 140-260 DEG C; the suitable service life and the mechanical service life of the catalyst are greatly prolonged; and the preparation method is applicable to industrial production and the application of a low-temperature smoke SCR (Selective Catalytic Reduction) denitration system.

The invention discloses a hyperstrength atmospheric corrosion-tolerant steel, which comprises the following parts: 0.01-0.07% C, 0.25-0.50% Si, 1.60-2.00% Mn, not more than 0.018% P, not more than 0.008% S, 0.20-0.50% Cu, 0.40-0.75% Cr, 0.25-0.60% Ni, 0.03-0.08% Nb, 0.10-0.40% Mo, not more than 0.02 Ti, not more than 0.035% Als, not more than 0.003% B and Fe and impurity.

The invention discloses a preparation method of a high-heat-conduction thermal-plasticizing inorganic substance composition and a heat-dissipation part manufactured by the method. The high-heat-conduction thermal-plasticizing inorganic substance composition is prepared by a component A, a component B and a component C, wherein the component A consists of 51wt%-88wt% of one or more inorganic substances with high heat conduction performance, the component B consists of 10wt% to 38wt% of one or more plastics with good processing properties, and the component C consists of 2wt% to 20wt% of a function additive. The preparation method comprises the following steps that: firstly, the configured component A and the configured component B are dried; secondly, the dried components A, B and C are mixed or internally mixed and then are preprocessed to manufacture raw materials; the manufactured raw materials are fed into an extruder, and fibrous heat-conduction inorganic substances are added from a side feeding part to perform modified processing and then are extruded into strips through a multiple-hole die; and fourthly, the materials extruded into strips are subjected to die-surface sized dicing or brace cooling sized dicing, thereby manufacturing the high-heat-conduction thermal-plasticizing inorganic substance composition. According to the invention, the normal service life and work performance of a chip of an electronic product are ensured, and the production cost is reduced.

The invention belongs to the technical field of air conditioning, and particularly relates to a control method and device for an air conditioning system. According to the control method and device for the air conditioning system, all temperature parameters of the system after defrosting are acquired, the opening degree of operation of an electronic expansion valve is adjusted timely according to indoor temperature differences delta TIN and outdoor temperature differences delta TOU, the phenomenon of oil blockage of an expansion valve after low temperature defrosting of new refrigerant air conditioning systems such as R290 is effectively avoided, the using comfort of the new refrigerant air conditioning systems is improved, the service life of a compressor and the system is prolonged, and a reference basis is provided for better matching new refrigerants for studying novel compressor engine oil in the future.

The invention provides a mold for processing a glass container and belongs to the technical field of mold. The mold includes a pair of half molds that are opposite to each other and have the same shape and a bottle mold cavity, a first heat-radiating groove and a second heat-radiating groove are alternatively opened on the outer wall of the two half molds. The mold has the advantages that the first and the second heat-radiating grooves on the outer wall of the two half molds are helpful for heat radiation of the half molds, which leads the temperature of the mold cavity to drop under the softening point rapidly and is favorable for improving the formation speed of the bottle in the mold cavity and the production speed of the bottle; the opening of the first heat-radiating groove and the second heat-radiating groove does not affect the strength of the half molds, thus being capable of ensuring the service life of the mold.

The invention provides an active and reactive coordination optimization control method of a distributed photovoltaic power distribution network. The method comprises steps that S1, based on the model predictive control method, according to the control targets and the control variables of different time scales, the distribution network system control process is divided into the long time scale optimization control and the short time scale optimization control, and a long time scale optimization control model and a short time scale optimization control model are established; S2, solving problems of the long time scale optimization control and the short time scale optimization control are converted into second-order cone programming problems; and S3, the long time scale optimization control model is based on the photovoltaic output and the load demand forecasting information, and uses the multi-step rolling optimization to solve the active and reactive power output of each controllable device, and the short time scale optimization control model is used to calculate the active and reactive power increment of each controllable device in a rolling manner with the solving result of the long time scale optimization control model as the reference value.

The invention discloses a method for sorting degree of self-discharging of lithium ion batteries. The method comprises the following steps: Step I, a plurality of batteries to be sorted are placed at the room temperature and respectively are discharged to a preset charge state, and the first test voltage of the batteries are respectively measured; Step II, preset time of the plurality of batteries is continuously set at a preset temperature, and the second test voltage of the plurality of batteries is respectively measured; and Step III, a value difference between the first test voltage and the second test voltage of each battery is compared with the range of a preset battery value difference, batteries within the preset battery value difference are sorted, and the sorted batteries are batteries with the same self-discharging performance. The method for sorting the degree of the self-discharging of the lithium ion battery can accurately and reliably sort the batteries with coincident self-discharging performance, so as to effectively match the batteries with the same self-discharging performance to form battery groups.

In the production process, tap water as material water is treated in four parts including pre-treatment unit, the first water purifying system, the second water purifying system and the end film filtering treatment system to prepare electronic level super-pure water. For the treating process, the pre-treatment unit includes sand filtering, superfiltering, active carbon adsorption and nanofiltering; the first water purifying system consists of reverse osmosis, film deairing, electrically deionizing, selective ion exchange resin to eliminate boron impurity and other units; the second water purifying sytem consists of ultraviolet lamp oxidation and polishing mixed bed resin; and the end film filtering treatment is polished reverse osmosis film treatment. The water purifying system has high efficiency, and low cost.

The invention discloses a charging control method for a low-voltage storage battery of an electric vehicle. The electric vehicle comprises a high-voltage power supply, the low-voltage storage battery and a power supply converter. The power supply converter is connected with the high-voltage power supply and the low-voltage storage battery. The charging control method comprises the following steps that current operating modes of the electric vehicle are detected by a whole vehicle controller of the electric vehicle, wherein the operating modes comprise the driving mode and the parking mode; if the electric vehicle is in the parking mode, the whole vehicle controller obtains electric quantity information of the low-voltage storage battery at preset time intervals after the high-voltage power supply stops high voltage output; and when the electric quantity of the low-voltage storage battery is lower than a charging threshold value lower limit, the whole vehicle controller controls start-up of the power supply converter to convert high voltage electricity into low voltage electricity in order to charge the low-voltage storage battery. The charging control method for the low-voltage storage battery can lower a power-lack risk which occurs in the low-voltage storage battery when the electric vehicle is in the parking mode. The invention further discloses the electric vehicle.

The invention provides a power transmission and distribution line partial discharge fault on-line detection method and an apparatus thereof, belonging to the measurement field. A method of on-line remote orientation focusing pick-up / positioning is employed to capture a supersonic wave signal generated in a discharge process, a heterodyne method is used to convert the picked supersonic wave signal into a sound / electrical signal which can be distinguished by detection personnel, according to a value size or change of sound pressure / voltage, whether a position where a partial discharge fault easily happens exists a contaminant flashover phenomenon or not and a degree of contaminant flashover are determined qualitatively and quantificationally, thereby, intensity of contaminant flashover of the position where the partial discharge fault easily happens and a size of threat to a system are determined, manpower and regular inspection cost can be greatly reduced, previous power failure time workload is reduced, safety operation of electric power equipment is ensured, maintenance cost is saved, and power supply reliability is raised. The method and the apparatus can be widely used in the on-line detection and fault diagnosis of a power transmission and distribution line.

The invention provides a cerium-based composite oxide loaded noble metal catalyst for catalyzing alcohols and hydrocarbons to carry out hydrogen production by reforming, comprising two parts including noble metal and a carrier. The noble metal is one or combination of more than two of rhodium, platinum, palladium, iridium, ruthenium and gold; and the carrier is a cerium-based composite oxide carrier which takes a cerium-lanthanum solid solution as a representative. The catalyst can be applied in the form of a grain state or a powder state and also can be coated on a porous integral ceramic to be used as a monolithic catalyst. The invention further provides a manufacturing method of the catalyst, which comprises the following steps of preparing a cerium-based composite oxide and loading the noble metal. Some preferable implementation schemes of the catalyst utilize biological ethanol as a raw material and the prepared hydrogen can be considered to a renewable energy source; and the catalyst can be applied to the condition of a high space velocity.

The invention relates to the technical field of electric cars, in particular to an integrated water-cooled power battery box. The integrated water-cooled power battery box provided by the invention comprises a box cover, a box body and a temperature regulating power system, wherein the box body is made of an aluminum alloy material and is manufactured by an extrusion moulding technology; a circulating flow passage is formed in the wall of the box body; a circulating loop for a temperature regulating medium to flow circularly is arranged inside the wall of the box body; and the temperature regulating power system can drive the temperature regulating medium to circularly flow in the circulating loop. In such a way, a water cooling board and a battery box are designed in an integrated manner,a hollow aluminum alloy section is adopted to achieve lightweight design, mechanical properties such as strength and rigidity are met, the integrated water-cooled power battery box is simpler in structure, better in technical performance and smaller in occupied space, and the comprehensive cost can be reduced; the heat-dissipating, cooling and temperature-raising and heating functions can be achieved by using one set of temperature regulating power system, the integrated water-cooled power battery box is simpler in structure, more convenient and fast to use and smaller in occupied space, themanufacturing cost and the using cost can be reduced, and the heat-dissipating efficiency and the heating efficiency can be improved.

The embodiment of the invention discloses a bending retractable mechanism. The bending retractable mechanism comprises a supporting layer and a retractable layer, wherein a flexible display screen isarranged on the supporting layer, and the retractable layer is arranged on the side, away from the flexible display screen, of the supporting layer. If the flexible display screen is bent, the supporting layer and the retractable layer are bent in linkage, the retractable layer retracts, and the problem that when an existing flexible screen is bent, the performance and service life of the flexiblescreen can be influenced is solved.

The invention provides a multilayer composite belt for a brazing type heat exchanger and a manufacturing method thereof. The multilayer composite belt for a brazing type heat exchanger manufactured by the method has greater anticorrosion performance, improves the service life of the heat exchanger and meets the requirement of high quality heat exchanger. The multilayer composite belt for a brazing type heat exchanger comprises a core alloy layer, wherein two sides of the core alloy layer are respectively coated with an anticorrosive alloy layer and a brazing alloy layer. The invention is characterized in that a brazing alloy layer is coated on the external side of the anticorrosive alloy layer is coated with a brazing alloy layer. The manufacturing method comprises the following steps of: preparing the core alloy, anticorrosive alloy and brazing alloy panel veneers by smelting, casting, face-milling, heating, hot rolling and rolling; combining the panel veneers, heating the combined panel veneers to 450-550 DEG C in a heat furnace, hot-rolling - compositing and cutting to obtain the multilayer composite belt.

The invention discloses a method for preparing a false tooth support through a 3D printing laser stereo-lithography technology. According to the method for preparing the false tooth support through the 3D printing laser stereo-lithography technology, the individual false tooth support most suitable for a patient is printed through the 3D printing laser stereo-lithography technology; the comfort level and the service life of the false tooth support are ensured by means of a finite element technology; the operation difficulty of a physician is lowered; the manufacturing cost is reduced; the manufacturing period is shortened. The surface of the false tooth support is processed through an anodizing and / or electrochemical deposition method so that the surface of the false tooth support can have more excellent synosteosis features and biology activity, osteoblast growth and surface calcification are facilitated, and the satisfaction of the patient is improved. The method is suitable for the field of medical devices.

The invention relates to a precise support rod type three-directional punching machine tool. The precise support rod type three-directional punching machine tool comprises a transmission shaft, an eccentric wheel arranged on the transmission shaft, a connecting rod with one end sleeving the eccentric wheel, an upper slide block arranged at the other end of the connecting rod, a horizontal punching device connected with the upper slide block, and a driving device connected with the transmission shaft. The precise support rod type three-directional punching machine tool adopts the eccentric wheel mode to drive the upper slide block to work; meanwhile, the horizontal punching device is connected with the upper slide block; the upper slide block is used for driving; one set of driving device is only adopted; and the precise support rod type three-directional punching machine tool is simple in structure, is lower in requirement on torque input by the driving device, and saves electricity.