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297results about How to "Guaranteed life" patented technology

Method for testing mechanical property and reliability of thin film material of micro-electromechanical system (MEMS) and device thereof

The invention discloses a method for testing mechanical property and reliability of a thin film material of a micro-electromechanical system (MEMS) and a testing device thereof. A thin film testing structure with a suspended membrane is fixed on a sample platform with a gas passage and a differential pressure is imposed on one side of the suspended membrane to cause the other side of the suspended membrane to be deformed and heave; the deflection at the center of the membrane under the impressed pressure is measured, namely the maximum deflection of the membrane and the pressure is gradually increased to cause the suspended membrane to fracture; such parameters related to the mechanical property and reliability of the tested thin film material as plane strain modulus, Young modulus, Poisson ratio, residual stress, rupture strength and the like are extracted and obtained with the measurement of a pressure-deflection change curve and in accordance with a theory calculating model. The invention adopts a non-contact optical method, utilizes a data acquisition and control unit to automatically implement the measurement of the deflection and is characterized by simple sample preparation and testing, high measurement accuracy, convenient and flexible operation and high testing efficiency.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI

Deep sea optic cable and its manufacture method

The invention provides a deep sea optical cable and producing method thereof, relating to a deep sea optical cable with a tension-resistant compact composite structure and producing method thereof. The structure of the deep sea optical cable comprises a plurality of full chromatogram high-strength optical fibres, high-strength anti-corrosion stainless steel tubes, ointment exclusive for sea cable optical fibre, special-high-strength armouring wires with three diversified diameters, a heavy viscous waterproof agent, metallic conductor brass pipes, organic plastic composite materials, and a polythene insulation material protective layer. High-strength anti-corrosion stainless steel tubes are sleeved on several full chromatogram high-strength optical fibres, ointment exclusive for sea cable optical fibre is filled into the high-strength anti-corrosion stainless steel tubes, special-high-strength armouring wires with three diversified diameters are inlaid on the outside of the high-strength anti-corrosion stainless steel tubes and are filled with heavy viscous waterproof agent of sufficient amount, the special-high-strength armouring wires are covered with the metallic conductor brass pipes, so that special tension-resistant compact composite structure is formed. Organic plastic composite materials are added on metallic conductor brass pipes, and then an insulation material protective layer is extruded thereon.
Owner:ZHONGTIAN TECH SUBMARINE CABLE CO LTD

Glass fiber reinforcement cement board and production method thereof

The invention relates to a building material and a method for preparing the same, in particular to a glass fiber reinforced cement board and a method for preparing the same. The glass fiber reinforced cement board comprises the following components in weight portion: 100 portions of Portland cement, 13.6 to 15 portions of high alumina cement, 3.1 to 3.4 portions of fly ash, 5.7 to 6.3 percent of plaster stone powder, 120 to 132 portions of ceramsite, 6.5 to 7.1 percent of foaming agent, 74.5 to 81.3 percent of dispersing agent, 53 to 58.7 portions of pure water and 3.6 to 4 portions of plastic-coated glass fiber grid cloth. The preparation method sequentially comprises the following steps: mixing weighed-up solid materials, adding weighed-up liquid materials in the previous step, cavity forming, roll extruding, vibration, cutting and curing. The invention has the advantages that: the glass fiber reinforced cement board has advantages of light volume weight, high strength, low dry shrinkage wet swelling coefficient, no after expansion and shrinkage, corrosion resistance, sound insulation, heat insulation, fire resistance and non-combustion; the preparation method has the characteristics of scientific and reasonable method, continuous production, high efficiency and low cost, flat board surface, convenient in-site mounting and the like; the glass fiber reinforced cement board is good in water resistance, and particularly applied to the finishing of internal and external walls and ceilings of various buildings in wet environments; moreover, the glass fiber reinforced cement board and a method for preparing the same have the advantages of ensuring the strength and service life of cement due to the adoption of the plastic-coated anti-alkali glass fiber grid cloth, along with reasonable blending ratio and reduced alkalinity.
Owner:YINGCHUANG BUILDING TECH SHANGHAI CO LTD

Coupler synchronous type double-horizontal shaft vibration stirring machine

The invention discloses a coupler synchronous type double-horizontal shaft vibration stirring machine, which comprises a machine frame and a vibration stirring device installed on the machine frame. Stirring drive and transmission devices are arranged at the left end of the vibration stirring device. Vibration drive and transmission devices are arranged at the right end of the vibration stirring device. The stirring drive and transmission devices and the vibration drive and transmission devices are installed on the machine frame. The vibration stirring device comprises a stirring cylinder and two stirring mechanisms. Both the two stirring mechanisms comprise hollow stirring shafts and a plurality of stirring units. The two stirring drive and transmission devices are respectively installed at the left ends of the two hollow stirring shafts. Synchronous couplers are installed between the two stirring drive and transmission devices. The two vibration drive and transmission devices are respectively installed at the right ends of the two hollow stirring shafts and respectively and fixedly connected with two vibration shafts. The coupler synchronous type double-horizontal shaft vibration stirring machine disclosed by the invention is simple and rational in structure and convenient for use; and mixed materials can be uniform in macroscopic and microscopic manners during a short time, thus, the stirring quality and the stirring efficiency are increased.
Owner:德通智能科技股份有限公司

Closed oil film visualization device capable of measuring leakage of reciprocating sealing piston

The invention discloses a closed oil film visualization device capable of measuring leakage of a reciprocating sealing piston. The device comprises a tabletop visualization mechanism and an oil supply system, wherein the tabletop visualization mechanism comprises a top plate, a base frame, a linear actuator, a pull pressure sensor, a piston and a transparent cylinder; lower leaked liquid detecting components are arranged around the bottom of the piston; an upper leaked liquid height detecting component and a microscope observation component are arranged on the side wall of the base frame; a vertical oil way and a horizontal oil way are arranged in the piston; the two ends of the horizontal oil way penetrate through the side wall of the piston; the vertical oil way is connected and communicated with the upper leaked liquid height detecting component; an annular groove is peripherally formed in the middle part of the piston to serve as an oil closed cavity to be connected to the oil supply system; and gaps are formed in the side surface of the piston and the inner wall of the transparent cylinder. The device solves the technical difficulties in a traditional device, supplies stable liquid pressure, guarantees the bearing capacity and the service life of a glass cylinder, and detects the sealing leakage quantity or the magnitude of pumping back quantity.
Owner:ZHEJIANG UNIV

Recovery method of blast furnace slag water residual heat and method thereof

The invention discloses a recovery method of blast furnace slag water residual heat and method thereof. The recovery system of resudual heat includes a blast furnace slag system, a sedimentation tank, a hydrocyclone separator, a water pump, a heat exchanger, a steam turbine, a refrigerant condenser, a refrigerant pump. The recovery method is that applying bicirculating low temperature hot water generation system to recovery residual heat and penerating power. The specific process is: guiding the blast furnace slag water into the heat exchanger after preprocessing of impurity precipitation and transmitting heat to low boiling refrigerant; the low boiling refrigerant absorbing heat in the heat exchanger and entering the steam turbine for expansion of doing work; the refrigerant after doing wirk changing into low-pressure superheated steam, the low-pressure superheated steam entering the concenser to releast heat and changing into liquid refrigerant of low-temperature and low-pressure, then being sent to the heat exchanger by the refrigerant pump for absorbing heat, becoming the superheated steam again to push the steam turbine to do work. The invention can recovery residual heat of the blast furnace slag water and generate power, and reduce energy consumption in steel production; and reduce temperature of blast furnace slag water which is benefit to improve quality of blast furnace water slag and reduce discharge of sulphide in slag washing process.
Owner:HANGZHOU BOILER GRP CO LTD

Foaming type polyurethane wave-absorbing material and preparation method thereof

The invention discloses a foaming type polyurethane wave-absorbing material and a preparation method thereof. The foaming type polyurethane wave-absorbing material is prepared in the way that a wave-absorbing material, a fire retardant and an additive are directly added to semi-rigid foam and rigid foam polyurethane which serve as carriers. The preparation method comprises the steps of: firstly, dividing the polyurethane raw material into a component A and a component B, wherein the component A is diisocyanate or a derivative of diisocyanate, the component B is polyether glycol or polyester polyol; adding the additive into the component B, mixing and stirring uniformly for later use, adding the fire retardant and the wave absorbing material in the component A or B in any proportion, respectively pouring the prepared components A and B which are uniformly mixed into two material tanks of a low-pressure polyurethane pouring machine, then pouring the prepared material into a mould by using the pouring machine, foaming for 6-8min and then opening the mould, taking a product out, curing the product for 0.5-2 days, and finishing to obtain the foaming type polyurethane wave-absorbing material. The foaming type polyurethane wave-absorbing material has the advantages of strong wave absorbing property and stable reflectivity, and is suitable for mass production.
Owner:THE THIRD ENG CORPS RES INST OF THE HEADQUARTERS OF GENERAL STAFF PLA

Sliding bearing with micro holes on inner wall thereof

The invention discloses a sliding bearing with micro holes on the inner wall thereof, which is prepared through the steps of welding a bearing bush and a bearing lining the surface of which is uniformly provided with micro through holes; and then rolling, wherein the bearing lining is arranged in the bearing bush; the total area of the micro through holes on the surface of the bearing lining accounts for 10 to 20 percent of the surface area of the inner wall of the bearing lining; and the ratio of depth to diameter of the micro through holes on the surface of the bearing lining is 0.05 to 0.2. The sliding bearing disclosed by the invention has the advantages that the micro through holes on the bearing lining form micro grooves on the inner wall of the sliding bearing, and the micro grooves are used for storing the lubricating oil, and when sufficient lubricating oil is stored in the micro grooves, a dynamic pressure oil film is formed between the bearing bush of the sliding bearing and an axle journal rubbing pair, thereby reducing the rubbing wear; the elastic deformation of the bearing lining is enlarged, the rubbing pair is in an elastic hydrodynamic lubrication state, and the bearing is good in abrasion resistance and obvious in lubrication effect; and the bearing is simple in processing and easy to manufacture.
Owner:ZHEJIANG UNIV

Driving method and device of active matrix organic light emitting diode (AMOLED) panel

The present invention relates to a driving method and device of an AMOLED panel. The driving method of the AMOLED panel comprises a step 10 of detecting the temperature of a detection point of a display panel; a step 20 of calculating a driving current corresponding to the temperature according to a preset function relationship of the temperatures of the display panel and the driving currents; a step 30 of comparing the driving current and a preset threshold current to obtain the compensation gain of the driving current; a step 40 of adjusting a data signal and a gamma signal for driving the display panel according to the compensation gain of the driving current; a step 50 of real-timely detecting the brightness of the display panel, when the brightness attenuates to a preset threshold value, compensating the brightness to the initial brightness by improving the driving current. The present invention also provides the corresponding device. According to the driving method and device of the AMOLED panel provided by the present invention, under the premise that the driving current of the panel is constant, by an OLED service life promotion algorithm, the service life of the OLED panel can be prolonged, and further the accuracy of a service life promotion model of an OLED device is guaranteed.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Vehicle-mounted intelligent charging system and method

The invention discloses a vehicle-mounted intelligent charging system and method. The method includes the steps that S1, needed charging parameters are obtained; S2, remaining essential charging time and remaining charging time are calculated in real time according to the obtained charging parameters; S3, whether the remaining charging time is longer than the remaining essential charging time is judged, if yes, a low-price stage is started and the step S4 is executed at the moment, and if not, a capacity expansion stage is started and a power grid is forced to charge a battery; and S4, whether the current real-time electricity price is lower than a set electricity price threshold value is judged, if yes, the power grid is made to charge the battery until the electricity quantity reaches set target electricity quantity of the low-price stage, and if not, charging of the battery is suspended until the next electricity price judging moment; the set target electricity quantity of the low-price stage is within the healthy capacity range of the battery. The vehicle-mounted intelligent charging system and method have the advantages of being comprehensive, reliable and high in intelligence degree, and can be widely applied to the technical field of charging.
Owner:GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD

Longitudinal dual clutch automatic transmission device with direct gear

The invention relates to a longitudinal dual clutch automatic transmission device with a direct gear. The device comprises a first clutch, a second clutch, and two input shafts which are fixedly connected with the clutches and are coaxial to each other, wherein a first input shaft gear is arranged on the first input shaft; a fifth synchronizer and an output shaft are arranged at an outward extending end of the first input shaft; a first reverse gear driven gear, a second and third gear driven gear and a fourth and fifth gear driven gear are arranged on the output shaft in sequence; a first intermediate shaft, a second intermediate shaft and a reverse gear shaft are respectively parallel to the output shaft; a first intermediate shaft gear, a fourth gear driving gear, a third synchronizer, a first synchronizer, a second gear driving gear and a reverse gear driving gear are arranged on the first intermediate shaft in sequence; a second intermediate shaft gear, a fifth gear driving gear, a fourth synchronizer, a second synchronizer, a third gear driving gear and a first gear driving gear are arranged on the second intermediate shaft in sequence; and a reverse gear intermediate gear is arranged on the reverse gear shaft. The longitudinal dual clutch automatic transmission device comprises the direct gear and has high transmission efficiency; and a gear is shared by a plurality of gears, and the axial length is short.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Optical fiber sensing device based on optical fiber bending deformation

The invention discloses an optical fiber sensing device based on optical fiber bending deformation. The sensing device is characterized by comprising a baseplate I, wherein at least one of the baseplate I, a fish back I and a fish back II arranged on the baseplate I or at least one part of three is composed of a function material, and the fish back I is provided with a deformation teeth I; the fish back II is provided with a deformation teeth II, the deformation teeth I and the deformation teeth II are corresponding in a staggered manner, the deformation teeth II is provided with a signal optical fiber, and the signal optical fiber is a of multiturn surrounding shape and clamped between the deformation teeth I and the deformation teeth II; and the signal optical fiber is connected with a prolonging optical fiber, the prolonging optical fiber is connected with a testing unit, and the testing unit is connected with a processing unit. The sensing device provided by the invention has the advantages of being capable of carrying out amplification on the collected physical quantity, improving the accuracy of the sensing device combine and prolonging the service life of the signal optical fiber; and the structure is simple, and the sensing device is convenient to use and convenient to popularize and use.
Owner:XIAN JINHE OPTICAL TECH

Illumination driving device

The invention relates to an illumination driving device. The illumination driving device comprises an alternating current power supply, a rectifier module, a voltage boosting module, a constant current module, a first voltage detecting module, a second voltage detecting module, an electric current detecting unit and a control module, wherein the alternating current power supply is used for providing input current, the rectifier module is used for converting the input current to direct current and supplying power for the control module, the voltage boosting module is used for increasing input voltage, the constant current module is used for outputting constant voltage to a load according to the input voltage, the first voltage detecting module detects voltage output to the constant current module, the second voltage detecting module detects voltage output by the voltage boosting module, the electric current detecting unit detects load current, and the control module is used for outputting a first control signal to drive the voltage boosting module when a detecting value of the first voltage detecting module is smaller than a first preset value, outputting a second control signal to switch off the voltage boosting module when a detecting value of the second voltage detecting module is larger than a second preset value, starting the constant current module and outputting a third control signal to switch off the constant current module when a voltage value detected by the electric current detecting unit is larger than a third preset value. The illumination driving device ceaselessly provides power for the load, so that the problem that the load is burnt out due to discontinuous current is prevented.
Owner:BYD SEMICON CO LTD

Novel liner plate structure used for large autogenous mill

The invention discloses a novel liner plate structure used for a large autogenous mill. The novel liner plate structure comprises a feeding end liner plate, a cylinder liner plate, a discharging end liner plate and a filling ring. The feeding end liner plate comprises a feeding end inner ring liner plate body, a feeding end middle ring liner plate body and a feeding end outer ring liner plate body, all of which are sequentially connected. The cylinder liner plate comprises a feeding end cylinder liner plate body, a middle section cylinder liner plate body and a discharging end cylinder liner plate body. The discharging end liner plate comprises a grid plate, an insensate stone window, an external ore pulp elevator, a discharging end middle liner plate body, a middle ore pulp elevator, an inner ring ore pulp elevator, a material discharging device and the like. A flat-head bolt hole is formed in the material discharging device, and an anti-loosening structure is further arranged at the position, corresponding to the flat-head bolt hole, on the material discharging device. The anti-loosening structure comprises a flat-head bolt, an anti-loosening steel bowl, a large gasket, a lock nut, an anti-loosening bolt, an anti-loosening nut and the like. The problems that during running of the mill, ore pulp circular flow scours an end cover, the filling ring falls, the service life of the cylinder liner plate bodies is not equal, discharging cannot be conducted in time through a discharging opening, the flat-head bolt loosens, and insensate stone is not discharged smoothly can be effectively solved.
Owner:CITIC HEAVY INDUSTRIES CO LTD

Cleaning method and device for engine

ActiveCN108856136ASmoothly intoEasy to focus on cleaningDrying gas arrangementsMachines/enginesCombustion chamberTransformer
The invention discloses a cleaning method and device for an engine. The cleaning method comprises the steps for cleaning a combustion chamber of the engine, specifically, an appropriate number of cleaning agents are added into the combustion chamber; ultrasonic waves are transmitted to the cleaning agents through an energy-concentrating-type ultrasonic amplitude transformer, so that the cleaning agents vibrate, and then carbon deposits on the inner wall of the combustion chamber fall off; the cleaning agents and the fallen-off carbon deposits are sucked out of the combustion chamber through amaterial suction pipe; and the fallen-off carbon deposits remaining in the combustion chamber are blown out through a blower gun, and the combustion chamber is blow-dried. The invention further discloses the ultrasonic cleaning device for the engine. The ultrasonic cleaning device comprises the energy-concentrating-type ultrasonic amplitude transformer matched with the combustion chamber of the engine and provided with a specific structure. According to the technical scheme, the cleaning agents do not need to be heated up and do not need have the high PH value, then the car engine can be effectively cleaned, and corrosion of cleaning liquid to the car engine can further be effectively avoided.
Owner:艾斯格林科技深圳有限公司

Linear compressor

The invention discloses a linear compressor which comprises an exhaust mechanism and a compressor assembly. The exhausting mechanism comprises an exhaust valve disc, an exhaust valve plate, a pre-tightening spring and an exhaust cavity cover; the exhaust valve plate is arranged at the end part of a cylinder; both an exhaust hole and the exhaust valve disc are arranged on the exhaust valve plate; the exhaust cavity cover is fastened on the wall surface of the outer end of the cylinder to form a closed cavity which is used as an exhaust cavity of the compressor; the pre-tightening spring is arranged in the exhaust cavity. The linear compressor successfully solves the problem of a harsh result that when the linear compressor operates abnormally, a piston or the exhaust valve plate is damaged or both the piston or the exhaust valve plate are damaged due to cylinder collision. When the compressor operates normally, a pre-tightening force provided by the pre-tightening spring of the exhaust mechanism are sufficient to counteract a pressure applied to the exhaust valve plate by gas compression. The exhaust mechanism can effectively ensure operation stability of the compressor, guarantees service life of the compressor, is beneficial to regulation of a control system and ensures implementation of accurate control. The spring is additionally arranged, and thus, the size of the exhaust cavity is increased and exhaust noise can be reduced.
Owner:HUAZHONG UNIV OF SCI & TECH

Electric vehicle thermal management system and electric vehicle

The invention belongs to the technical field of electric vehicles, and particularly discloses an electric vehicle thermal management system and an electric vehicle, and the electric vehicle thermal management system comprises a battery control loop and a power system control loop. The battery control loop is coupled to a battery pack of the electric vehicle; the power system control loop comprisesa main path, a first branch path and a second branch path, heat transfer fluid in the power system control loop can flow into the first branch path and the second branch path from the main path and finally flows back to the main path, a radiator is arranged on the main path, the first branch path is coupled to at least one power system component of the electric automobile, and a switch valve is arranged on the second branch path. A first valve assembly which can couple the second branch path with the battery control loop, and the second valve assembly which can disconnect or connect the radiator with the main path are also included. The battery pack is heated by utilizing the waste heat of the power system component to ensure the low-temperature discharge power of the battery; the power system and the battery pack share the radiator for heat dissipation, the starting time of a cooling device of the battery pack is shortened, and energy consumption is reduced.
Owner:CHINA FIRST AUTOMOBILE

Steel-composite material wind-driven generator tower cylinder

InactiveCN102817795AGuaranteed lifeSolve the problem of the limitation of bridge heightWind energy generationWind motor componentsGlass fiberWind driven
The invention discloses a steel-composite material wind-driven generator tower cylinder, which comprises an internal steel pipe and an external composite material pipe, a plurality of conical steel pipe sections are connected to form the internal steel pipe, and the external composite material pipe comprises a plurality of glass fiber composite material pipe sections; corrosion-resistant E-glass fiber cloth is stuck on the surface of each internal steel pipe, so that the steel-composite material combination section is formed; the steel-composite material combination section is circumferentially divided into two pieces; longitudinal reinforcing ribs are arranged along the longitudinal direction of each piece; each two pieces of steel-composite material combination sections are connected together by adopting high-strength bolts, so that a steel-composite material tower cylinder section is formed in the end; and each two steel-composite material tower cylinder sections are connected together through flanges, so that the steel-composite material tower cylinder for on-site installation is formed. Compared with conventional steel wind-driven generator tower cylinders, the steel-composite material wind-driven generator tower cylinder can effectively resist the hit of wind-blown sand and stormy waves, fatigue and corrosion, so that the life of the tower cylinder can be guaranteed.
Owner:NANJING UNIV OF TECH
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