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4005results about How to "Discharge in time" patented technology

Selective laser melting forming device and method of medical magnesium alloy metal part

ActiveCN101856724ASatisfies complex spatial shape requirements with high degrees of freedomMeet complex space shape requirementsSelective laser meltingOptoelectronics
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.
Owner:SOUTH CHINA UNIV OF TECH

Glaze and preparation of embossment phantom glazed brick

ActiveCN104140297AImprove water absorptionUniform and excellent air permeabilityBrickTalc
The invention discloses a glaze and preparation of an embossment phantom glazed brick. The glaze comprises a ground glaze, a surface glaze and an embossment phantom printing glaze, wherein the ground glaze is prepared from a frit b, zirconium silicate, kaolin, calcined kaolin, potassium feldspar powder, fired talc, aluminum oxide powder, quartz powder, carboxymethyl cellulose, sodium tripolyphosphate and water; the surface glaze is prepared from a frit, the frit b, a frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water; the embossment phantom printing glaze is prepared from parent glaze powder, zinc oxide, tin oxide, cerium oxide and ceramic adhesive roll-printing oil; the parent glaze powder is prepared from the frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water. The preparation method comprises the following steps: sequentially applying the ground glaze and the surface glaze on a green brick, then printing the embossment phantom printing glaze, performing inkjet printing, and finally firing to obtain the embossment phantom glazed brick. The product disclosed by the invention has unique decorative effect and visual aesthetic feeling; moreover, each indicator can reach the standard requirements, so that the product has relatively strong universality, and is easily popularized in the industry.
Owner:GUANGDONG WINTO CERAMICS +3

First-time charging forming method for lithium-ion secondary battery

The invention belongs to the technical field of lithium-ion secondary batteries, and in particular relates to a first-time charging forming method for a lithium-ion secondary battery. The method comprises the following steps that: carrying out aging treatment on the lithium-ion secondary battery poured with electrolyte, then gradually increasing the charging current to carry out a sectional charge formation on the battery in the state of negative pressure, and sealing the battery when the voltage reaches 3.6 volts; and carrying out aging treatment on the battery, carrying out constant-current charging to 3.8-4.0 volts at a rate of 0.5 C-1 C, then carrying out constant-current charging to 4.2 volts at a rate of 0.2 C-0.5 C, and carrying out constant-voltage charging in the state of 4.2 volts at last. Compared with the prior art, the invention adopts the method of sectional charge formation to charge the battery to 3.6 volts firstly, so as to exhaust the harmful gas produced in the process of forming SEI (solid electrolyte interface), ensure the migration of Li<+> better, enable the formed SEI to be more uniform, stable and compact, and thus improving the cycling performance and high rate discharging performance.
Owner:湖北力莱科技有限公司

Traditional Chinese medicine composition for treating cardiovascular and cerebrovascular diseases

InactiveCN106729432AImprove blood weightImprove blood vessel elasticityHeavy metal active ingredientsHydroxy compound active ingredientsAcute hyperglycaemiaCervical spondylosis
The invention discloses a traditional Chinese medicine composition for treating cardiovascular and cerebrovascular diseases. The traditional Chinese medicine composition is mainly prepared from 81 kinds of traditional Chinese medicine such as radix panacis quinquefolii, placenta hominis, radix salvia miltiorrhizae, herba rhodiolae, fructus schisandrae, head of Chinese angelica, rhizoma chuanxiong, radix polygalae, hirudo, radix notoginseng, fried semen ziziphi spinosae, herba cistanches and radix rehmanniae through mutual matching. The traditional Chinese medicine composition is capable of improving general blood circulation, blood weight and blood vessel elasticity within a shorter time, and meanwhile, damp cold in a body and outer walls of blood vessels can be eliminated and removed out of the body in time; the traditional Chinese medicine composition has the function of repairing internal organs such as the liver, the kidney, the lung and the spleen and is capable of increasing the immunity and the disease resistance of the body in time; the traditional Chinese medicine composition has an obvious treatment or auxiliary treatment rehabilitation function on heart disease, cerebral thrombosis, serious insomnia, astriction, hypertension, hyperglycemia, hyperlipidemia, insufficiency of cerebral blood supply, tinnitus, cervical spondylosis and lumbar spondylosis.
Owner:贾庭山

Circuit-type fishpond breeding system integrating circulating water treatment process

The invention relates to a circuit-type fishpond breeding system integrating a circulating water treatment process. The circuit-type fishpond breeding system integrating the circulating water treatment process comprises a fishpond shaped like an annular runway, and sewage treatment systems arranged in an inner ring of the fishpond. Each sewage treatment system comprises a vertical flow type solid-liquid separator (1), wherein a sewage discharging groove (5) perpendicular to the water flow direction is formed in the bottom of the fishpond and communicated with an inlet of the vertical flow type solid-liquid separator (1), an outlet of the vertical flow type solid-liquid separator (1) is communicated with a micro-filtration machine (2), outlet water of the micro-filtration machine (2) adopts a water pump (3) and a water lifting pipe (4) for water lifting and is injected into a biological filter (6), the biological filter (6) is separated from an aeration oxygenation pond (8) through a separation plate and is communicated with the aeration oxygenation pond (8) through a through hole in the lower portion of the separation plate, a water falling pipe (7) is arranged on the lateral wall of the aeration oxygenation pond (8) and communicated with the fishpond, and the water outlet direction at the bottom of the water falling pipe (7) is the same as the water flow direction of the fishpond. The number of the sewage treatment systems is two, and the sewage treatment systems are evenly distributed in the inner ring of the annular fishpond in a central symmetry mode.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Tea cleaning and drying device

InactiveCN107965989ARealize the function of cleaning and removing impuritiesSpeed up the flowPre-extraction tea treatmentDrying gas arrangementsWater resourcesAgricultural engineering
The invention discloses a tea cleaning and drying device which comprises a drying box, a rotating tube and a seal cover. The bottom of the drying box is provided with a rotating motor, the rotating motor is connected with the rotating tube through a rotating shaft, two inner walls, close to the rotating tube, of the drying box are provided with a heating pipe and an ultraviolet ray lamp pipe correspondingly, the outer wall, close to the heating pipe, of the drying box is provided with an air blower, the bottom of one side of the drying box is connected with a waste water treatment box througha pollution discharge pipe, the top of the seal cover is provided with an air exhaust fan, and the bottom of the seal cover is provided with a water spray pipe. By means of the tea cleaning and dryingdevice, before agricultural and sideline products are dried, cleaning and impurity removing functions performed on the agricultural and sideline products can be realized, and the quality of dried products is improved; by means of the arrangement of the waste water treatment box, the waste water after cleaning can be filtered and purified, and the recycling of water resources is facilitated; and the tea cleaning and drying device is simple in structure, the efficiency of drying performed on the agricultural and sideline products is high, and the drying is performed more thoroughly.
Owner:WUZHOU YAZHENG AGRI TECH CO LTD

Rotary ultrasonic-assisted fine electrolytic grinding and broaching device and method

The invention provides a rotary ultrasonic-assisted fine electrolytic grinding and broaching device and method. According to the rotary ultrasonic-assisted fine electrolytic grinding and broaching device and method, on the basis that a pre-formed hole is obtained through electrolytic drilling and grinding by a fine electrolytic machine tool, online tool-changing operation is conducted on the machine tool to avoid positioning errors, axial ultrasonic vibration is applied to a rotary spindle of the machine tool, and electrolytic grinding and broaching are conducted on the pre-formed hole througha high-frequency pulse power supply. An electrolyte is disturbed through the cavatition and enhanced mass transfer effect of ultrasonic vibration to promote separated-out gas and other electrolytic products in a machining area to be discharged in time, so that the gas flow field and the gap electric field are more uniform, and the machining efficiency, the repeated machining precision and the surface machining quality are improved. Slight removal of workpieces is achieved through the high-frequency pulse power supply, so that the machining locality and the dimension controllability are improved, and precise adjustment of matching between electrolytic machining and mechanical grinding is facilitated. By adoption of the rotary ultrasonic-assisted fine electrolytic grinding and broaching device and method, the small hole machining precision and the surface machining quality are improved while the machining efficiency is ensured.
Owner:SHANDONG UNIV

Plate shell-type nonsaturated evaporation condensing plant

The invention discloses a plate-shell type nonsaturated evaporation condensing device comprising an upper housing body, a plate-shell type heat exchanger, and a lower housing body. The upper housing body is connected with the lower housing body by a water pump, and the heat exchange main body is the plate-shell type heat exchanger which is connected with the upper housing body and the lower housing body respectively. The plate-shell type heat exchanger comprises an upper tube plate, a lower tube plate, heat exchange plate bundles, a housing, a baffle, a gas-distributing pipe and a collector tube. The upper tube plate is provided horizontally, the lower tube plate declines in the direction of the flowing hot fluid, the plate type heat exchanger gets through holes in the upper tube plate and the lower tube plate with a in-line modus, and the baffle is disposed among the heat exchange plate bundles. The inventive device is provided with a large effective heat transfer area, even aqueous film allocation, rapid settling velocity, quick transfer of nonsaturated evaporation heat and moisture, anabatic liquid membrane fluctuation, enhanced turbulent flow, an attenuated liquid membrane laminar sublayer, decreased heat resistance, a small condensing resisting force and a remarkable condensing effect. Deposit and erosion are reduced, a mall floor space is provided, and the inventive device is suitable for condensing and cooling field.
Owner:SOUTH CHINA UNIV OF TECH

Bearing-rail beam low track and viaduct transition section structure of medium-low-speed magnetic suspension traffic engineering

ActiveCN105672067AError will not occurAchieving smoothness requirementsRailway tracksBridge structural detailsLow speedAbutment
The invention discloses a bearing-rail beam low track and viaduct transition section structure of medium-low-speed magnetic suspension traffic engineering. The structure comprises a roadbed, a bridge abutment, bearing-rail beams, a plurality of grouting pipes and drainage ditches. The bridge abutment comprises an abutment back body and abutment cones. Each bearing-rail beam comprises a bottom slab and an upper structure arranged on the bottom slab, and the bottom slab is buried in the roadbed and extends downwards to form tenons corresponding to tenon grooves. Each tenon is placed in the corresponding tenon groove, and round corners are arranged on the tenons and the tenon grooves so that the tenons can rotate in the tenon grooves. The grouting pipes are arranged in the roadbed. According to the bearing-rail beam low track and viaduct transition section structure, the bearing-rail beams of a low track are in lap joint with the tenon grooves of a viaduct, so that settlement and slab staggering, caused by different foundation treatment measures, between the low track and the viaduct are avoided, the effect that settlement and slab staggering of a magnetic levitation F rail at the junction of the low track and the abutment are avoided is guaranteed, and the requirement for smoothness of the F rail at the transition section between a viaduct structure and the low track of the magnetic suspension traffic engineering is effectively met.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Formation method of lithium ion battery

The invention discloses a formation method of a lithium ion battery. The formation method comprises the following steps: (1) carrying out constant-current charging with a 0.04C-0.2C current; (2) carrying out the constant-current charging with a 0.2C-1.0C current; (3) placing; (4) carrying out the constant-current discharging to a cut-off voltage with a 0.2C-0.6C discharging current; (5) placing; (6) carrying out the constant-current charging with a 0.5C-1.0C current; (7) carrying out the constant-current charging to the cut-off voltage with a 0.04C-0.2C current, and then converting into constant-voltage charging; and (8) maintaining a micro-vacuum state with the pressure being -0.03MPa-0.01MPa all the time in the lithium ion battery during the whole formation stage. The formation method disclosed by the invention has the advantages that in formation, gas generated in the battery can be exhausted in time, so that the lower capacity of the battery caused by bubbles adhered onto the surface of a negative pole piece is avoided; the phenomenon of overflowing of the electrolyte with the gas in the formation is avoided, so that the condition that the inventory of the electrolyte meets the process requirement is guaranteed; the discharging step is added after the charging step, so that the circulating performance and the rate capability of the prepared battery are respectively improved to a certain extent.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY

Electrolytic machining technique and device for small bore diameter inner wall surface fine groove

The invention discloses an electrolytic machining technique of a micro-groove on an inner wall surface of a small aperture and a device. The technique is that: a cathode of a forming tool of a variable cross-section structure which is provided with insulation sections and conductive sections at intervals and is made of conductive metal wires of 200 to 1000 mum is positioned in an unthreaded hole of a workpiece which is processed in advance by utilizing the electrolytic machining device of the invention, the workpiece is taken as an anode, then electrolytic solution is radially flowed along an electrode wire, the electrolytic machining is carried out in the unthreaded hole, the pressure of the electrolytic solution is maintained at 1 to 5 MPa, and the micro-groove structure is obtained at the inner wall surface of the unthreaded hole by flushing the products after the processing. The diameter size of the cathode of the forming tool which is prepared by adopting the ultra-violet light masking solidification technology and the electroforming process can be as small as a few hundred microns, and a rib cooling hole structure with the hole diameter size of about 1mm can be obtained by combining the electrolytic machining technique. The adopted technical process of the invention is easy to master and has small investment, the minimal hole diameter which can be processed is small, and the processing precision is high.
Owner:ZHEJIANG UNIV OF TECH

Spinning process of bamboo-like flat filaments produced by semi-continuous high-speed spinning machine

The invention relates to a spinning process of bamboo-like flat filaments produced by a semi-continuous high-speed spinning machine and belongs to the technical field of spinning of semi-continuous spinning machines. The spinning process comprises glue supply, filament strip forming, spinning and winding. The spinning process is characterized in that the glue supply is achieved through a glue supply device which comprises a metering pump, a glue supply tube and a filter; the metering pump is connected with a frequency converter which is used for controlling the amount of the glue supply of the metering pump; the frequency converter controls the metering pump to perform intermittent glue supply; the spinning is achieved through a spinning device which comprises at least one spinning roller which is horizontally arranged relative to an operating surface of a spinning surface; and filament strips surround the spinning roller to achieve drafting, solidification and deacidification in the spinning processes under the rotation of the spinning roller. The spinning process of the bamboo-like flat filaments produced by the semi-continuous high-speed spinning machine has the advantages of solving the problems that the filament strips of the semi-continuous spinning machines are inadequate in response, so that the spinning speed cannot be improved and the production efficiency and product quality cannot be integrated, enabling the arrangement direction of the spinning roller to be changed to enable the spinning speed of the spinning machine to be improved and enabling the high quality bamboo-like flat filaments to be spun out.
Owner:YIBIN HIEST FIBER +2

Integrated oven

The invention discloses an integrated oven, comprising an oven table, an air suctioning baffle, a burning system and an air channel, wherein the air suctioning baffle is arranged at the upper part of the oven table; the burning system is arranged below the oven table; the air channel is communicated with the air suctioning opening of the air suctioning plate; the air channel comprises an air suctioning chamber, a turbine fan, an air outlet elbow and an air outlet pipe which are connected in sequence; a first oil collecting nozzle is arranged at the outer wall of the bottom side of the air outlet elbow; an inclined oil collecting plate is arranged below the first oil collecting nozzle; the lowest part of the oil collecting plate is provided with a gap; and a drawer-type oil collecting disc is arranged below the gap. In the integrated oven disclosed by the invention, the whole structure is simple, and since the first oil collecting nozzle, a second oil collecting nozzle and a third oil collecting nozzle are arranged, the capability of timely discharging and collecting oil stains formed in the air channel is guaranteed, and the corrosion of the oil stains to pipelines and the pollution of the oil stains to the environment are prevented. In addition, as an air curtain mechanism is arranged, the diffusion of oily smoke is prevented and further the air suctioning effect of the integrated oven is improved.
Owner:浙江优格实业有限公司
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