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65results about How to "Easy to operate in batches" patented technology

Measuring method for current carrier concentration in solar energy level monocrystal silicon

The invention discloses a measuring method for the current carrier concentration in solar energy level monocrystal silicon. The measuring method includes the following steps that (1), a series of p-type electronic grade monocrystal silicon and a series of n-type electronic grade monocrystal silicon are respectively selected as standard samples, the electrical resistivity and infrared absorption coefficients of the standard samples are respectively measured at the room temperature, and the corresponding current carrier concentration is converted according to the electrical resistivity; (2), according to measurement results in the step (1), an alpha lambda/ lambda<2> and rho p<2> standard curve of the p-type monocrystal silicon and an alpha lambda/ lambda<2> and rho p<2> standard curve of the n-type monocrystal silicon are respectively set up, wherein alpha lambda is the infrared absorption coefficients of the standard samples at the wavelength of lambda, and p and rho are the corresponding current carrier concentration and the corresponding electrical resistivity; (3), the electric conduction type of the solar energy level monocrystal silicon samples to be detected is determined, the electrical resistivity and the infrared absorption coefficients of the standard samples are respectively measured at the room temperature, and the current carrier concentration is obtained according to the corresponding standard curves in the step (2). The measuring method is easy, convenient and fast to use, high in accuracy, low in test cost and particularly suitable for the solar energy level monocrystal silicon, wherein the compensation effect exists in a substrate of the solar energy level monocrystal silicon.
Owner:ZHEJIANG UNIV

Microphone housing painting device

The invention relates to the field of painting processing equipment of a microphone housing, and discloses a microphone housing painting device. The device comprises an oil paint box. The oil paint box is connected with a paint spraying pipe. The top of the oil paint box is rotatably connected with a main gear. The main gear is connected with a motor through a belt. The main gear is meshed with afirst gear and a second gear, and the first gear and the second gear are connected with vertical rods. The upper ends of the vertical rods are fixedly connected with semicircular wheels. Sleeves are sleeved on the two vertical rods. A connecting rod is connected between the sleeves. The connecting rod is connected with a swing arm. The swing arm is hinged with a pulling shaft. The pulling shaft isconnected with a positioning barrel. The positioning barrel is rotatably connected with the oil paint box. The top of the oil paint box is provided with a strip hole, and two ends of the swing arm are slidably connected with the strip hole. The oil paint box is internally provided with a stirring shaft. The stirring shaft comprises a first inclined rod and a second inclined rod. Two ends of the swing rod are respectively hinged on the first inclined rod and the second inclined rod, and the first inclined rod and the second inclined rod are fixedly connected. The device can realize comprehensive uniform painting of a microphone housing.
Owner:麦科多电子(南通)有限公司

Lithium electric chain saw provided with logarithmic spiral for steady regulation

A lithium electric chain saw provided with a logarithmic spiral for steady regulation comprises a body (127) provided with wedges, a cover (127a) provided with the wedges, a follow-up chain saw stent (128) provided with the wedges and a cubic parabola, wherein each wedge is a hollow hexagonal pyramid (131) with a small through hole (131a) in the top; a sound-absorbing piece (131c) is pasted on the bottom face of the hollow hexagonal pyramid with the small through hole of each wedge; multiple pores (131f) are formed in the sound-absorbing pieces and are in one to one correspondence with the small holes to form sound-absorbing chambers through which noise enters the pores to be compressed into the hollow hexagonal pyramids, and sound-absorbing noise reduction chambers through which noise is expanded and then escapes from the small through holes; a damping handle (133) is arranged outside the body, a foamed polyurethane pipe sleeves a hollow plastic pipe, and the method of sleeving the foamed polyurethane pipe is that a pneumatic gun nozzle with compressed air extends into a pipe gap between the plastic pipe and the foamed polyurethane pipe, and blowing and sleeving are performed simultaneously. As generally known, the curvature of the cubic parabola at the point (0, 0) and the curvature of the line are both zero, and a material of a function stent bar (128d) provided with the cubic parabola of the follow-up chain saw stent adopts a steel spring plate, and is subjected to normalization heat processing.
Owner:NINGBO DAYE GARDEN EQUIP

Centrifugal barrel polishing mechanical pre-polishing method for copper cavity substrate

The invention discloses a centrifugal barrel polishing mechanical pre-polishing method for a copper cavity substrate. The method comprises the following steps of 1) selecting oblique-triangle-shaped corundum and a grinding material, mixing the oblique-triangle-shaped corundum with diluted grinding fluid, pouring the mixture into a copper cavity, and carrying out primary barrel polishing on the copper cavity substrate for 40-50 hours by adopting a centrifugal barrel polishing method; 2) selecting cone-shaped resin as a grinding material, mixing the cone-shaped resin with diluted grinding liquid, pouring the mixture into the copper cavity, and carrying out secondary barrel polishing on the copper cavity substrate for 25-30 hours; 3) selecting bullet-shaped resin as a grinding material, mixing the bullet-shaped resin with diluted grinding fluid, pouring the mixture into the copper cavity, and carrying out tertiary barrel polishing on the copper cavity substrate for 25-30 hours; and 4) selecting corncobs as a grinding material, mixing the corncobs with a metal polishing paste, pouring the mixture into the copper cavity, and carrying out quaternary barrel polishing on the copper cavitysubstrate; wherein the volume of the grinding material selected each time accounts for 38-42% of the total volume of the copper cavity, and as for the usage amount of the metal polishing paste, the volume of the metal polishing paste accounts for 1% of the volume of the corncobs.
Owner:INST OF HIGH ENERGY PHYSICS CHINESE ACADEMY OF SCI

Lithium electric chain saw with conjugated arch back for autogenously grinding saw blade

The invention relates to a lithium electric chain saw with conjugated arch backs for autogenously grinding saw blades. The lithium electric chain saw comprises an arch back blade chain saw strip (129); the arch back blade chain saw strip (129) is provided with conjugated sharpened blade faces which are back to back and are respectively outward; each blade face of the arch back blade chain saw strip is formed by firstly stamping a steel plate into two bent faces which are at an included angle and are provided with arch backs and then sharpening the bent faces into blades; the outer profiles of both sides of each steel plate of the arch back blade chain saw strip are slightly of an equiangular spiral structure so as to form a chopping-cutting angle; each steel plate, of which the outer profiles of both sides are slightly of an equiangular spiral structure, of the arch back blade chain saw strip is blanked and is stamped and bent into two faces which are at an included angle and are provided with the arch backs and then the faces are simultaneously sharpened to form the blades so as to form a sliding-cutting angle; moreover, each two adjacent conjugated sharpened blade faces, which are formed at intervals and are back to back, of the arch back blade chain saw strip (129) are respectively sharpened outwards; the sharpened faces are in parallel to the saw-cutting faces of the chain saw strip in the rotating process, so that the lithium electric chain saw is beneficial to autogenous blade sharpening in the operation.
Owner:NINGBO DAYE GARDEN EQUIP

Convenient and rapid separating device suitable for detachable blood glucose transmitter

The invention discloses a convenient and rapid separating device suitable for a detachable blood glucose transmitter. The convenient and rapid separating device comprises a holding body and a resilient pressing plate, a clamping groove for separating is formed in the bottom surface of the holding body, and the clamping groove for separating is used for covering and being abutted on the blood glucose transmitter in a clamping mode; the holding body is provided with a longitudinally cut side plane, the longitudinally cut side plane is provided with a lower notch, and the lower notch communicateswith the clamping groove for separating; and one end of the resilient pressing plate is integrally formed on the holding body or the resilient pressing plate is an independent part with one end connected to the holding body. The convenient and rapid separating device is simple in structure and convenient to use, a main part and a consumable part of the blood glucose transmitter are pried apart byusing the clamping groove for separating and the resilient pressing plate, time and effort are saved, batch operation is facilitated, a traditional hand disassembly method is replaced, excessive fatigue or even injury to the fingers is avoided, the cost is low, and the convenient and rapid separating device is worth promoting and using.
Owner:HUZHOU MEIQI MEDICAL EQUIP CO LTD

Automatic aging-detection equipment

PendingCN108761251AEffective detection of working status informationQuality improvementElectrical testingElectricityPower flow
The invention relates to automatic aging-detection equipment which comprises a main control cabinet, a load cabinet and a test cabinet, wherein a plurality of modules to be tested are arranged in thetest cabinet; paths of loads are arranged in the load cabinet; the loads are electrically connected with the modules to be tested in a one-to-one correspondence manner; an industrial control computer,a relay control circuit and a CAN (Controller Network Area) communication module are arranged in the main control cabinet; the industrial control computer is electrically connected with the relay control circuit; the relay control circuit is electrically connected with all the modules to be tested; and all the modules to be tested are electrically connected with the industrial control computer through the CAN communication module. The automatic aging-detection equipment disclosed by the invention can effectively detect working state information of the modules to be tested in a loaded state, and parameter information such as working current acquired by the modules to be tested is fed back to the industrial control computer through a CAN bus, so that the industrial control computer precisely monitors the parameter information such as the working current of the modules to be tested in an aging process in real time and provides a basis for management and control of quality improvement, and the automatic-aging detection equipment is favorable for improving the quality of a product.
Owner:WUHAN SOUTH SAGITTARIUS INTEGRATION CO LTD

Rapid determination method for chloride ions in lithium battery copper foil electrolyte

The invention discloses a rapid determination method for chloride ions in a lithium battery copper foil electrolyte, and belongs to the field of analysis and detection. The method comprises the following steps: (1) transferring and treating a sample and a sample blank; (2) preparing a matrix solution; (3) drawing a measurement standard working curve; (4) measuring the absorbance of the sample solution; and (5) calculating the content of chloride ions in the sample according to the absorbance value of the solution and the working curve. An effective method for eliminating copper matrix interference is adopted, compared with an original copper matrix separation method, the analysis speed is increased by 2.5 times, the single-sample measurement time is shorter than 25 minutes, the analysis speed is increased, the labor intensity is relieved, the standard recovery rate of the method reaches 97.2% or above, and the analysis relative deviation is lower than 4.75%. The method has the characteristics of simplicity and convenience in operation, short analysis flow, high analysis speed, high analysis accuracy, no need of separating a copper matrix and the like, provides reliable guarantee for uniform, continuous and stable production of the lithium battery copper foil, and has remarkable benefits.
Owner:JINCHUAN GROUP LIMITED

Sprouting method of snakegourd seed

The invention mainly relates to the technical field of the planting, and discloses a sprouting method of snakegourd seed. The sprouting method comprises the following steps: peeling snakegourd fruit, softening the snakegourd seed, freezing the snakegourd seed, sprouting the snakegourd seed and seeding the snakegourd seed; the method is simple and convenient for batch operation, so that the sprouting time is shortened to be 8-9 days, and the sprouting rate reaches 98.8%, the planting efficiency is obviously improved, and the planting cost is saved by 11.4%; the snakegourd seed is taken out as soon as possible after the snakegourd fruit is picked, and then the snakegourd seed is placed in a high-temperature sodium nitrite aqueous solution, the sodium nitrite aqueous solution is promoted to immerse into the snakegourd seed to stimulate the stress resistance of germ and accelerate the sprouting; enzymolysis is performed on the snakegourd seed to decompose the macromolecular structure of a seed coat, soften the seed coat and produce small molecular nutritional ingredients for the sprouting of the seed germ; the mixed bacteria is added in the snakegourd seed after enzymolysis to ferment, a large number of fermentation products are produced, and the rich nutrition is provided; and meanwhile, the activity of sproutinginhibiting substance is lowered, the seed dormancy is broken, and the sprouting time of the seed is shortened.
Owner:蚌埠清菲农业科技有限公司

Food air drying method

The invention provides a food air drying method. The food air drying method comprises the steps of a method for preparing an air drying quality guaranteeing auxiliary agent and a method for performingair drying, wherein the method for preparing the air drying quality guaranteeing auxiliary agent comprises the steps of taking fresh lemons, performing squeezing to obtain juice, removing residues, taking juice for standby application, crushing dried aromatic hydrocarbon containing plants to obtain powder, pouring the powder into the lemon juice, performing sufficient stirring while pouring the powder until the powder is viscous and does not have dry powder, so that the air drying quality guaranteeing auxiliary agent is prepared and placed in a sterilized sealed box namely that the quality guaranteeing auxiliary agent is loaded into the box; and the method for performing air drying comprises the steps of taking fresh air, performing dampness removal, ultraviolet irradiation and aseptic filtration so as to obtain clean air having temperature being 18-30 DEG C and humidity being 45-70%, introducing the clean air into an adjunct room, enabling the clean air to flow past the quality guaranteeing auxiliary agent to be injected into an air drying room, enabling the air to flow past the fruit and vegetable raw materials for air drying, and then discharging the air out of the air drying room. The air drying method disclosed by the invention can maintain the flavor of foods to the maximum extent, the foods can be really reduced, the working procedures are simple, the equipment is simple, batched production is easy to realize, and the air drying method is suitable for cooked foods or fresh foods.
Owner:龙岩安萍科技有限公司

PCR rapid reaction chip

The invention relates to a PCR rapid reaction chip. The PCR rapid reaction chip comprises a channel piece and a sealing fin closely attached to the channel piece. The channel piece is a thin film piece and comprises at least one PCR reaction group composed of a liquid adding hole, an exhaust hole and a PCR micro reaction pool communicated with the liquid adding hole and the exhaust hole. The liquid adding hole and the exhaust hole are formed in the surface of the channel piece. The liquid adding hole is communicated with the PCR micro reaction pool through a liquid adding channel. The exhausthole is communicated with the PCR micro reaction pool through an exhaust channel. One face of the channel piece is provided with a hollowed-out structure which forms the PCR micro reaction pool and isopened towards the sealing fin. One face of the sealing fin is closely combined with the face, with the hollowed-out structure, of the channel piece and covers the hollowed-out structure to form a PCR micro reaction pool cavity. The PCR micro reaction pool cavity, the liquid adding channel and the exhaust channel are connected to form an integrated cavity. The sealing fin is made of a metal filmor a biological film. Due to the structural settings, the PCR rapid reaction chip can be matched with a heating device, so rapid heating and cooling are realized, and the PCR reaction time is shortened.
Owner:北京吉检医疗科技有限公司

Detection device for detecting electrical performance of electronic circuit board

The invention discloses a detection device for detecting the electrical performance of an electronic circuit board. The detection device comprises a plurality of probes which are fixed on a substratethrough a motor base. Each probe comprises a pushing mechanism at the bottom and a detection mechanism at the top. The pushing mechanism comprises a linear motor, and a circular tray is arranged at the top end of the push rod of the motor. A guide column is fixed in the center of the tray. A spring is nested on the guide column. A probe seat is fixed to the top end of the spring. A probe is led out from the center of the top of the probe seat. A run-through long and thin pipeline is formed at the center of the top of an insulating shell outside the probe seat and the guide column, and the probe penetrates out of the pipeline. The substrate is connected with a control panel. The control panel is provided with an FPGA (field programmable gate array), a motor driving module, an ADC module andan RS232 interface module used for being connected with a PC unit. Compared with the traditional manual detection method, the above device is high in efficiency, good in stability and convenient forbatch operation. The leaked detection and the wrong detection can be effectively prevented. In addition, the recording and the statistics can be realized, so that the detection process of each circuitboard can be traced.
Owner:惠州市金普升电子科技有限公司
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