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Preparation process of light electronic packaging material
InactiveCN102134650ASmall coefficient of thermal expansionGood mechanical propertiesSemiconductor/solid-state device detailsSolid-state devicesAluminiumSmelting process
The invention discloses a preparation process of a light electronic packaging material which consists of aluminum and silicon, wherein the content of silicon in mass percent is 30-80% and the balance is aluminum. The process comprises the steps of: mixing the aluminum and the silicon and then placing the mixture in a vacuum induction furnace for smelting at a temperature of 800-1300 DEG C so as to obtain a consumable electrode bar; loading in an electric slag furnace for electric slag smelting, wherein the work voltage of the electric slag furnace is 20-40V, the work current is 1-10kA, the arc strike block is a pure aluminum block and the arc strike slag is CaF2; adding electric slag which is thermally insulated for 4-8h at a temperature within 500-800 DEG C in the smelting process, wherein the addition of the electric slag is 3-4% of the quality of the consumable electrode bar and the electric slag consists of 20-30% of Na3A1F6, 25-35% of NaC1 and 45-55% of KC1 in mass percent; and annealing the aluminum-silicon cast ingot which is rapidly solidified by a water cooling crystallizer for 3-5h at a temperature within 325-375 DEG C after the smelting of the electric slag.
Owner:SOUTHEAST UNIV
Preparation method for spherical dispersion strengthening aluminum bronze powder
The invention belongs to the technical field of copper alloy powder, and particularly relates to a preparation method for spherical dispersion strengthening aluminum bronze powder. The preparation method comprises the following steps that aluminum bronze prealloy raw materials are put in a graphite crucible of a medium-frequency induction furnace, vacuum melting is carried out, and then sphericalaluminum bronze powder is formed through a gas atomization process; nanometer dispersed phase micro powder is put into pure water, meanwhile, an organosilicone type surface active agent is added, andafter ultrasonic dispersion, a colloidal solution is formed in water through nanophases; the spherical aluminum bronze powder is put into the colloidal solution, a mixture is sufficiently stirred andput in a drying oven to be heated and dried; obtained powder is put into a material mixing tank to be mixed, the powder rubs, and then the spherical dispersion strengthening aluminum bronze powder isobtained. Compared with the prior art, a coating prepared through the aluminum bronze powder is compact in structure, dispersed phase particles in nanometer size to submicron size are distributed in the coating, the sizes of the dispersed phase particles are stable, the dispersed phase particles are evenly distributed in a film layer which is obtained through cold spraying and is of a layer structure, and a particle dispersion strengthening effect is achieved.
Owner:DONGGUAN HYPER TECH COMPANY
High-concentration graphene slurry, and preparation method and preparation device thereof
The invention provides a high-concentration graphene slurry, and a preparation method and a preparation device thereof. The high-concentration graphene slurry is prepared through stage addition of expandable graphite and a dispersant and one-shot addition of a solvent without concentration. The preparation method of the slurry further mechanizes the preparation process of the graphene slurry, and facilitates the large-scale production of the high-concentration graphene slurry.
Owner:BEIJING TUNGHSU CARBON ADVANCED MATERIALS TECH CO LTD
Well closing pressure measuring method for low pressure low permeation oil field oil water well
ActiveCN1752408AExpand the detection rangeWellbore storage space shrinksSurveyOil productionEngineering
The invented method includes the following steps: firstly, taking out production pipe string; then down-placing piezometric pipe string with anti-vibration barrel and pressure meter; third, under the condition of that the packer is not set starting pump and making oil production; fourth, stopping pump and setting packer; fifth, well shut-in, pressure meter can be used for automatically measuring and recording pressure build-up data; finally, taking out pressure meter and inputting the above-mentioned data into computer, then processing and analyzing said pressure data.
Owner:PETROCHINA CO LTD
Device and method for measuring influence range of coal seam blasting through trace gas
PendingCN107676077AStable diffusionEasy to catchDisloding machinesConstructionsGas cylinderProcess engineering
The invention relates to a device and method for measuring the influence range of coal seam blasting through trace gas. The device mainly comprises a gas-injection device and a trace gas storage and collection device. The device is characterized in that the gas-injection device is constituted through the step that after being connected with a gas bottle gas-injection connecting head, a gas pipe ofa trace gas bottle is connected with an injected gas pressure adjusting valve, a pressure gauge with a pressed adjusting valve and a gas-injection pipe with a gas pressure measuring adjusting valve through a three-way pipe; and the trace gas storage and collection device is constituted through the step that a gas extraction pipe is connected with a gas storage and collection box through a connecting head pipe with a valve. According to the method for measuring the influence range of coal seam blasting through the trace gas, the blank of actual measuring of the influence radius of coal seam blasting of a mine is made up; by utilizing the characteristics of stable diffusion and easy capturing of the trace gas SF6 and under the condition that it can be ensured that normal production of the mine is not influenced, the influence range of coal seam blasting is accurately measured; and the method is easy to operate and low in cost and has great economical and popularization properties.
Owner:山西华阳集团新能股份有限公司 +1
Automobile silencer
InactiveCN104948264AReduce back pressureSmall volumeSilencing apparatusMachines/enginesAutomotive engineering
The invention discloses an automobile silencer, and relates to the technical field of automobile silencer production. The automobile silencer comprises a shell provided with an air inlet pipe and an air outlet pipe. The inner space in the shell is divided into a first cavity and a second cavity by a separating disk with holes in the air inflow direction. The tail end of the air inlet pipe is blocked. The air inlet pipe penetrates through the separating disk and stretches into the second cavity. Multiple through holes of the air inlet pipe are uniformly distributed on the pipe wall of the first cavity and the pipe wall of the second cavity. Multiple through holes are formed in the separating disk. Compared with the prior art, the automobile silencer can solve the problems that the silencing effect of an existing automobile silencer is bad, and the service life is short.
Owner:柳州利和排气控制系统有限公司
Connector terminal assembly, electronic control unit, and electric power steering unit
ActiveCN106184345AStable diffusionVehicle connectorsCoupling device detailsElectric power steeringInterior space
The present invention provides a connector terminal assembly, an electronic control unit, and an electric power steering unit. The electronic control unit t has a novel connector terminal assembly capable of stabilizing and diffusing a sealant. The bottom wall of the base body formed on the connector terminal assembly is formed as an inclined surface so that the sealant is injected into the sealing material by gravity flow. Therefore, it is possible to stabilize the sealant by a simple method and to diffuse and fill the inside space of the substrate, and to securely seal the space between the substrate and the connector main body.
Owner:HITACHI ASTEMO LTD
Synthesizing method for dual anode material
InactiveCN103972494AUniform component distributionStable crystal structureCell electrodesSecondary cellsLithium hydroxideHigh energy
A synthesizing method for a dual anode material comprises the following steps: mixing resolvable lithium compound, nickel compound and manganese compound according to a metal ion molar ratio of 1:0.5:1.5; adding the mixture in a high energy ball grinder, wherein the grinding media in the ball grinder is zirconia balls or alumina ceramic balls, the diameter of the grinding balls is 1-20 mm, and weight ratio between the grinding balls and the raw materials is 10-100:1; conducting dry-process ball grinding on the raw materials for 10-100 hours in the planetary ball grinder provided with revolution and autoroatation at a revolution speed of 100-10000 turns / minute; obtaining finished product of LiNi0.5Mn1.5O4 in the high energy grinding process; the resolvable compounds can be resolved under a temperature below 800 DEG C; the resolvable lithium compound is lithium hydrate, lithium carbonate or lithium nitrate; the resolvable nickel compound is nickelous hydroxide, nickel oxalate, or nickel nitrate; the resolvable manganese compound is manganese dioxide, manganous-manganic oxide, manganese carbonate, or manganese oxalate.
Owner:SHANDONG GOLDENCELL ELECTRONICS TECH
Mosquito attraction agent
ActiveCN108244137APrevent taking awayExtended use timeBiocidePest attractantsSodium bicarbonateAdditive ingredient
The invention discloses a mosquito attraction agent which comprises the following ingredients in parts by weight: 5-15 parts of lactic acid, 1-5 parts of stearic acid and 30-50 parts of ammonium bicarbonate. Lactic acid and ammonium bicarbonate are mixed according to the above proportion to form a sweaty odor of a human body to attract mosquitos; the odor is one of main bases of tracking and positioning of the mosquitos; many cosmetics contain stearic acid, so that the mosquitos habitually track an odor of stearic acid; and therefore, the mosquito attraction efficiency is improved.
Owner:四季科技(深圳)有限公司
Light guide plate and preparation method thereof
ActiveCN109782386ASimple preparation processImprove mechanical propertiesOptical light guidesCellulose acetatePhosphate
The invention discloses a light guide plate and a preparation method thereof. The light guide plate comprises a light outgoing surface, a back surface and side surfaces, wherein the light outgoing surface and the back surface are arranged oppositely; the side surface is connected with the light outgoing surface and the back surface; at least one side surface is provided with a light incoming layer; the part outside the light incoming layer of the light guide plate is a PS layer; and the light incoming layer is composed of the following components in parts by weight: polymethyl acrylate, microporous hydroxyapatite, n-propyl silicate, cellulose triacetate, acrylonitrile-butadiene-styrene copolymer, ultrafine activated silica powder, polydimethylsiloxane, polymethylpentene resin, polytetrafluoroethylene, 4-octylphenol, ethylene bisstearamide, ethyene glycol, stearate, acrylic emulsion, polymethylphenyl silicone, thermoplastic polyurethane elastomer, dicalcium phosphate, polyethylene glycol, a stabilizer, and a composite antioxidant. Through mixing the components, the light guide plate is prepared, the stability is strong, the transmittance is good, and light loss can be reduced.
Owner:KUNSHAN CHENGTAI ELECTRIC
Device and method for continuously preparing polyaniline nanofiber through mobile interface polymerization
InactiveCN110215892AOvercome efficiencyOvercoming productivityRotary stirring mixersTransportation and packagingFiltrationMonomer
The invention provides a device and method for continuously preparing a polyaniline nanofiber through mobile interface polymerization. The method mainly comprises the following steps: continuously putting a phenylamine monomer and an organic solvent into a first container, carrying out stirring and mixing so as to obtain an organic phase solution, continuously putting an acid solution of an initiator and a dopant into a second container, and carrying out stirring and mixing so as to obtain a water phase solution; respectively mixing the two solutions uniformly, opening valves, enabling the twosolutions to flow through two reaction tubes continuously and stably at a certain speed under the action of centrifugal force provided by stirring devices, forming mobile interfaces inside the reaction tubes, polymerizing the phenylamine monomer in a mobile interface area, and finally gathering the phenylamine monomer into two collection containers after flowing polymerization is completed; and carrying out washing, suction filtration and drying on products in the collection containers, so as to obtain the polyaniline nanofiber. The method is simple and convenient in operation, low in cost, controllable in reaction and high in repeatability, and is an effective way for achieving on-scale continuous production of high-quality polyaniline nanofibers.
Owner:HENAN UNIV OF URBAN CONSTR
Preparation process of light electronic packaging material
InactiveCN102134650BStable DiffusionSmall coefficient of thermal expansionSemiconductor/solid-state device detailsSolid-state devicesElectric arc furnaceSmelting process
The invention discloses a preparation process of a light electronic packaging material which consists of aluminum and silicon, wherein the content of silicon in mass percent is 30-80% and the balance is aluminum. The process comprises the steps of: mixing the aluminum and the silicon and then placing the mixture in a vacuum induction furnace for smelting at a temperature of 800-1300 DEG C so as to obtain a consumable electrode bar; loading in an electric slag furnace for electric slag smelting, wherein the work voltage of the electric slag furnace is 20-40V, the work current is 1-10kA, the arc strike block is a pure aluminum block and the arc strike slag is CaF2; adding electric slag which is thermally insulated for 4-8h at a temperature within 500-800 DEG C in the smelting process, wherein the addition of the electric slag is 3-4% of the quality of the consumable electrode bar and the electric slag consists of 20-30% of Na3A1F6, 25-35% of NaC1 and 45-55% of KC1 in mass percent; and annealing the aluminum-silicon cast ingot which is rapidly solidified by a water cooling crystallizer for 3-5h at a temperature within 325-375 DEG C after the smelting of the electric slag.
Owner:SOUTHEAST UNIV
Discharge lamp
ActiveCN102194643AStable diffusionStable electrode strengthGas discharge lamp detailsCold cathode manufactureGas-discharge lampOptoelectronics
The present invention provides a discharge lamp which provides stable diffusion of a radiator and a stable electrode strength. The discharge lamp is provided with a cathode (20) which is provided with a sintered layer (sintered member) (24) on the front end (23) of the electrode, wherein the sintered layer is composed of a plurality of density inclination layers (26). Each density inclination layer is formed through periodically compressing the mixed powder of radiator powders such as barium oxide and high-melting-point powders such as tungsten into a dent part (25) of the cathode (20), and integrally performing SPS sintering. In each layer, the sintered member is inclined, and the density gradually reduces from the front side to the back side of the electrode.
Owner:ORC MFG
Ardealite-based filling bag for efficiently repairing sunken part of slope surface and construction method thereof
ActiveCN113774930AFast fillKeep it flatGrowth substratesCulture mediaMechanical engineeringWater resource management
The invention discloses an ardealite-based filling bag for efficiently repairing a sunken part of a slope surface and a construction method thereof. The ardealite-based filling bag comprises a filling bag, wherein the filling bag is laid in the sunken part of a side slope, the filling bag comprises a soil matrix bag which is located on the upper side and a sunken filling bag which is located on the lower side, a plurality of separation nets which are used for separating the sunken filling bag into a plurality of reaction areas are arranged in the sunken filling bag, a water bag and a hardened matrix are arranged in each reaction area, spines are arranged on the surfaces of the separation nets, anchor nails can be inserted into and penetrate through the filling bag, the anchor nails are hollow, and communication holes are formed in the surfaces of the anchor nails. According to the ardealite-based filling bag, rapid greening and ecological restoration can be carried out on the sunken part of the slope surface.
Owner:CHINA THREE GORGES UNIV
a mosquito attractant
ActiveCN108244137BImprove the efficiency of attracting mosquitoesImprove the effect of attracting mosquitoesBiocidePest attractantsBiotechnologyAnimal science
The invention discloses a mosquito attractant, which comprises the following components in parts by weight: 5-15 parts of lactic acid; 1-5 parts of stearic acid; 30-50 parts of ammonium bicarbonate; The smell of sweat attracts mosquitoes; smell is one of the main basis for mosquito tracking and positioning. The stearic acid contained in many cosmetics makes mosquitoes habitually track the smell of stearic acid, thereby improving the efficiency of mosquito trapping.
Owner:四季科技(深圳)有限公司
A method to determine the pre -exhausting gas bandwidth of the coal mining of the coal mine
ActiveCN105675815BDoes not affect normal productionAccurate measurementAnalysing gaseous mixturesRelation graphCoal
A method to determine the width of the pre-drainage gas zone in the tunnel of the coal mine mining working face is to drill 5 gas injection boreholes at the starting point of construction 10m away from the entrance of the tunnel in the mining area tunnel closest to the mining working face. The depths of the holes are respectively 40m, 35m, 25m, and 20m, and cement is injected into the hole to seal it. The tracer gas SF6 was injected into the gas injection borehole and measured by the SF6 tester at 5 test points every day for 300 days. Based on the measurement data relationship diagram, the width of the tunnel pre-drainage gas zone at different tunnel exposure times of the coal seam was obtained. . The beneficial effects of the present invention are: filling the gap in the method of measuring the width of the tunnel pre-discharge gas zone for measuring the exposure time of different coal seam tunnels in different mines, utilizing the characteristics of stable diffusion and easy capture of the tracer gas SF6, and ensuring that the normal production of the mine is not affected. , accurately determine the width of the pre-drainage gas zone in the coal seam tunnel. This method is simple to operate and low-cost. The coal mine's own technical capabilities can be used to determine it, and it has very good economics and popularity.
Owner:SOUTHWEST PETROLEUM UNIV +2
Scouring pad leveling device
ActiveCN224185561UImprove leveling efficiencyquality improvementUnfolding thin materialsWebs handlingSlide platePhysics
The utility model discloses a scouring pad leveling device, which relates to the technical field of scouring pad leveling, and comprises an operating table and a mounting plate, the upper side of the operating table is fixedly connected with a vertical plate, two groups of symmetrically arranged positioning mechanisms are mounted outside the vertical plate, the outside of the operating table is fixedly connected with a mounting seat, and the mounting seat is fixedly connected with a base. A heating mechanism is mounted on one side of the mounting seat, two groups of symmetrically arranged sliding plates are slidably connected to the upper side of the operating table in a limiting manner, a leveling strip is fixedly connected to the bottom of the mounting plate, the tail end of the leveling strip is sharpened, and a pressing mechanism is mounted between the mounting plate and the sliding plates. According to the device, through the dual effects of heating power and mechanical force, the scouring pad fiber reset resistance is remarkably reduced, the efficient and uniform leveling effect is achieved, and meanwhile the device can meet the machining requirements of scouring pads of different sizes.
Owner:CHENGDU JIUZHAN TECH CO LTD
Well closing pressure measuring method for low pressure low permeation oil field oil water well
The invented method includes the following steps: firstly, taking out production pipe string; then down-placing piezometric pipe string with anti-vibration barrel and pressure meter; third, under the condition of that the packer is not set starting pump and making oil production; fourth, stopping pump and setting packer; fifth, well shut-in, pressure meter can be used for automatically measuring and recording pressure build-up data; finally, taking out pressure meter and inputting the above-mentioned data into computer, then processing and analyzing said pressure data.
Owner:PETROCHINA CO LTD
A kind of highly stable lithium-ion battery electrolyte and its preparation method and application
Owner:SOUTH CHINA NORMAL UNIVERSITY
A kind of fluorescent gold nanocluster aggregate and preparation method thereof
ActiveCN108795409BLow toxicityStable diffusionMaterial nanotechnologySolid-state devicesOrganic solventPhoto stability
The invention discloses a fluorescent gold nano-cluster aggregate and a preparation method thereof. The preparation method comprises: mixing and reacting a cationic surfactant and a gold source in an organic solvent to obtain a composite reactant; mixing and reacting the composite reactant with an alkylthiol to obtain an alkylthiol-gold complex compound solution; adding the alkylthiol-gold complex solution into an aqueous solution of a nonionic surfactant to generate fluorescent gold nanocluster aggregates. The excitation peak position of the fluorescent gold nano-cluster aggregate is 200-400 nm, and the emission peak position is 500-800 nm. The invention can prepare fluorescent gold nanocluster aggregates that can be uniformly and stably dispersed in aqueous solution, which can be directly used as fluorescent gold nanoclusters; and it has good photostability, large Stokes shift and near-infrared region The nature of the emission can be applied to fluorescence-related fields, such as light-emitting devices and fluorescence detection.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
High-stability lithium ion battery electrolyte as well as preparation method and application thereof
ActiveCN107732290AStable diffusionReduce circulationSecondary cellsOrganic solventCharge and discharge
The invention discloses high-stability lithium ion battery electrolyte as well as a preparation method and application thereof, and belongs to the technical field of a lithium ion battery. The electrolyte is prepared from conductive lithium salt, an organic solvent and a Mn(II) ion stabilizer, wherein the Mn(II) ion stabilizer is Mn[(CF3SO2)2N]2. The Mn(II) ion stabilizer can be deposited on the surface of a cathode SEI film in the charging and discharging processes; a modification effect is achieved in a position near the lithium titanate surface; the lithium ion diffusion is stabilized, so that the reduction of the cycle performance is effectively retarded. The cycle performance of the lithium ion battery containing an electrolyte stabilizer at 0.005 to 2.5V is obviously improved.
Owner:SOUTH CHINA NORMAL UNIVERSITY
A kind of phosphogypsum-based filling bag for efficient repair of concave parts of slope surface and construction method thereof
ActiveCN113774930BFast fillKeep it flatGrowth substratesCulture mediaStructural engineeringPhosphogypsum
Owner:CHINA THREE GORGES UNIV
A kind of preparation method of dispersion strengthened aluminum bronze spherical powder
Owner:DONGGUAN HYPER TECH COMPANY
Light guide plate and preparation method thereof
ActiveCN109738982BSimple preparation processImprove mechanical propertiesOptical light guidesPolyethylene terephthalate glycolPolyetherimide
The invention discloses a light guide plate and a preparation method thereof. The light guide plate includes a light emitting surface, a back surface and side surfaces; the light emitting surface is opposite to the back surface; the side surfaces are connected to the light emitting surface and the back surface, wherein at least one side surface is provided with a light incident layer; and a portion other than the light incident layer of the light guide plate is a PS layer. The light incident layer material is composed of the following parts by weight: polyethylene glycol terephthalate, ultrafine modified alumina, n-propyl silicate, hydroxypropyl methylcellulose, ultrafine active silicon micro-powder, dimethyl silicone oil, polyetherimide resin, lauryl sodium sulfate, vinyl methyl ether, ethylene bis stearic acid amide, stearate, dibutyl phthalate, hexamethyldisilane, thermoplastic polyurethane elastomer, calcium hydrogen phosphate, dioctyl ester, stabilizer and composite antioxidant; the light guide plate is prepared by mixing various components; and the light guide plate has strong stability and good light transmittance, and can reduce light loss.
Owner:KUNSHAN CHENGTAI ELECTRIC
Method for determining master equipment information and related device
PendingCN121815395Asolve conflictsstable diffusionSynchronisation arrangementTransmissionEngineeringBeacon
The invention discloses a method for determining master equipment information and a related device. The first device receives a synchronization beacon message sent by the second device, wherein the synchronization beacon message carries second master device information recorded by the second device; the first equipment determines third main equipment information according to first main equipment information and second main equipment information of the first equipment, and the current main equipment information of the first equipment is the third main equipment information; when the third master device information is the first master device information, the first device sends a synchronization beacon correction message, the synchronization beacon correction message carries the third master device information, so that the second device and the first device are synchronized, and the master device information of the second device is confirmed to be the third master device information; and when the third main equipment information is the second main equipment information, the first equipment is synchronized with the second equipment according to the synchronization beacon message, so that one piece of main equipment information is determined from the multiple pieces of main equipment information, the problem of conflict of the main equipment is solved, and stable diffusion of a time sequence is further guaranteed.
Owner:HYTERA COMM CORP
discharge lamp
ActiveCN102194643BStable diffusionStable electrode strengthGas discharge lamp detailsCold cathode manufactureGas-discharge lampOptoelectronics
The present invention provides a discharge lamp which provides stable diffusion of a radiator and a stable electrode strength. The discharge lamp is provided with a cathode (20) which is provided with a sintered layer (sintered member) (24) on the front end (23) of the electrode, wherein the sintered layer is composed of a plurality of density inclination layers (26). Each density inclination layer is formed through periodically compressing the mixed powder of radiator powders such as barium oxide and high-melting-point powders such as tungsten into a dent part (25) of the cathode (20), and integrally performing SPS sintering. In each layer, the sintered member is inclined, and the density gradually reduces from the front side to the back side of the electrode.
Owner:ORC MFG
Low-temperature heating device with lining plate deformation preventing function
PendingCN114294956AGuaranteed cleanlinessUniform low temperature heating operationMaintainance of heating chambersCharge manipulationPhysicsElectric heating
The invention relates to the technical field of liner plate processing, in particular to a low-temperature heating device with a liner plate deformation prevention function, which comprises a heating frame, a display panel is arranged at the top of one end of the heating frame, and a control panel is arranged at the bottom of one end of the heating frame. The output end of the control panel is electrically connected with the input end of the display panel through a wire, and the output end of the control panel is electrically connected with the input end of the electric heating pipe through a wire. Through the arrangement of the heating frame, the display panel, the control panel, the heating box, the electric heating pipe, an exhaust seat, an exhaust fan, an air conveying pipe, a connecting frame, an air control frame, an air control fan, an air distribution pipe and an air distribution seat, uniform low-temperature heating operation on the lining plate can be achieved; a worker firstly places a lining plate needing to be machined in the drawing frame and then pushes the lining plate into the heating frame, and at the moment, the worker starts an electric heating pipe in the heating box through a control panel to conduct temperature rising operation.
Owner:南京敏捷机械刀模具制造有限公司
A method for manufacturing a ceramic micro-channel carrier for high-power devices
The application discloses a manufacturing method of a ceramic micro-flow channel carrier for high-power devices and relates to the field of ceramics. The manufacturing method comprises the following steps: after punching a green ceramic sheet, tungsten slurry is used to fill the holes and conductor patterns are printed on the surface of the green ceramic sheet; then, a bottom plate micro-flow channel layer is laminated and a sacrificial material is filled in the micro-flow channel cavities; then, the bonding interface between the cover plate and the bottom plate is subjected to ultraviolet laser roughening treatment; then, two-step isostatic pressing forming treatment is performed; after cutting into a bar, the bar is subjected to glue removal, sintering, hot pressing leveling, grinding, polishing and seed layer deposition; then, exposure development is performed and the line layer is thickened by electroplating; then, secondary photolithography processing is performed on the chip eutectic area to open a window; finally, gold tin evaporation treatment, stripping of the photoresist and cutting are performed, so that the ceramic micro-flow channel carrier for high-power devices is obtained. According to the specific manufacturing process, the mechanical strength, the dielectric property, the heat fatigue resistance and the micro-flow channel pressure resistance are improved while the heat dissipation property is maintained.
Owner:HEFEI JIUSI ELECTRONIC TECHNOLOGY CO LTD
CVD (Chemical Vapor Deposition) workbench rotating device and CVD device
ActiveCN114686859AStable diffusionSufficient efficiencyChemical vapor deposition coatingDrive shaftEngineering
The invention provides a CVD workbench rotating device and a CVD device.The CVD workbench rotating device comprises a rotating workbench, the rotating workbench comprises a driving rotating workbench body and a driven rotating workbench body, gear sleeves are embedded in the outer side of the driving rotating workbench body and the outer side of the driven rotating workbench body, and the driving rotating workbench body and the driven rotating workbench body are connected through a rotating shaft; the gear sleeve of the driving rotary workbench is meshed with the gear sleeve of the driven rotary workbench; the driving rotary workbench is rotationally connected into the furnace body through a main transmission shaft, and the driving transmission shaft is connected with a driving mechanism. The tool jig frame is used for solving the problem that a workpiece is fixed relative to an air field, and the tool jig frame placed on the rotary workbench serves as a fan blade in the rotating process to stir the original air field in a cavity, so that the original air field can better form a relatively stable and diffused air field in the cavity. And the workpiece rotates at a certain speed in the gas field and is in full contact with the reaction gas, so that the reaction gas has enough use efficiency.
Owner:广州志橙半导体有限公司
Device and method for continuously preparing polyaniline nanofiber by moving interface polymerization
ActiveCN110354794AStable diffusionDiffusion in timeTransportation and packagingRotary stirring mixersDopantOrganic solvent
The invention provides a device and a method for continuously preparing polyaniline nanofibers by moving interface polymerization, and the method mainly comprises the following steps: continuously injecting aniline monomers and an organic solvent into a first container, stirring and mixing to form an organic phase solution, continuously injecting an acidic aqueous solution of an initiator and a dopant into a second container, and stirring and mixing to form an aqueous phase solution; after the two solutions are uniformly mixed respectively, opening a valve, allowing the two solutions to continuously and stably flow through two reaction tubes at a certain speed through the centrifugal force provided by a stirring device and form a moving interface in the reaction tubes, polymerizing the aniline monomers in the moving interface area, and after the flowing polymerization is finished, finally collecting the aniline monomers into the two collection containers; and washing, suction filteringand drying the products in the collection containers to obtain the polyaniline nanofibers. The method has the advantages of simple and convenient operation, low cost, controllable reaction and high repeatability, and is an effective way for realizing large-scale continuous production of high-quality polyaniline nanofibers.
Owner:HENAN UNIV OF URBAN CONSTR