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31results about How to "Reduce initial resistance" patented technology
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High efficiency permanent air filter and method of manufacture
InactiveUS6322615B1Reduce initial resistanceIncreasing and decreasing widthCombination devicesDispersed particle filtrationPorous layerAir filter
A novel air filter design for use in residential and commercial heating and air conditioning systems comprising a laminated unit having a filter media where the upstream side of the filter media having a porous layer of passive electrostatic netting. The air filter design has a corrugation configuration to increase the available surface area when compared to conventional flat filters.
Owner:CHAPMAN RICK L
Reverse opening type slide fastener
Owner:YKK CORP
Metal-film filtering screen and air purifying device
InactiveCN106731412AStrong antioxidant capacityImprove efficiencyCombination devicesGas treatmentMetalMultiple layer
The invention provides a metal-film filtering screen and an air purifying device, and relates to the field of air purification. The metal-film filtering screen is mounted in an air filtering device; the air filtering device is provided with an air inlet and an air outlet; the metal-film filtering screen comprises a medium-efficiency filtering screen and a high-efficiency filtering screen. The medium-efficiency filtering screen more approaches the air inlet relative to the high-efficiency filtering screen; the medium-efficiency filtering screen and the high-efficiency filtering screen both comprise multiple layers of filtering plates; a gap exists between two adjacent layers of the filtering plates; the filtering plates are provided with multiple filtering holes; the filtering plates are made from intermetallic compounds. As the filtering screen is made from a special intermetallic compound, the purification effect is good; a material is quite environment-friendly; moreover, the metal-film filtering screen can be circularly rinsed and repeatedly used; after a client purchases a fresh air ventilator with the filtering-screen material, no any consumable-material expenses exist. In this way, the fussy consumable material replacing action is virtually decreased for the client; meanwhile, the cost is also greatly saved for the client.
Owner:刘满华
Biophysical warm-tonification medicinal moxibustion instrument adopting traditional Chinese medicine
InactiveCN104666072AEffective preservationSolve the problem of unclear acupoint recognitionDevices for heating/cooling reflex pointsDispersed particle filtrationInsulation layerMedicine
A biophysical warm-tonification medicinal moxibustion instrument adopting traditional Chinese medicine comprises a lead-in device, a medicine reaction chamber, a telescopic device and a smoke purification device. The lead-in device comprises a semispherical cover with the open side down, a reflection board is arranged on the inner side of the cover, an ash isolation net is arranged at the bottom end of the cover and fixedly clamped to the cover, a cavity formed between the ash isolation net and the reflection board serves as a medicine reaction chamber, and a bag filled with traditional Chinese medicine is put in the medicine reaction chamber. The top end of the medicine reaction chamber is provided with a smoke outlet which is communicated with a smoke inlet of the telescopic device, a smoke outlet of the telescopic device is communicated with a smoke inlet of the smoke purification device, and the bottom of the smoke purification device is provided with an air outlet. The instrument is characterized in that a heat insulation layer is arranged between the cover and the reflection board. The biophysical warm-tonification medicinal moxibustion instrument adopting the traditional Chinese medicine has the advantages that the instrument is flexible in use and convenient to operate, heat generated by burning of the bag filled with the traditional Chinese medicine is less prone to dispersion and can act on acupoints for a long time, and curative effects are multiplied due to concentrated lasting fire power.
Owner:刘瑜
Anisotropic conductive glue and its preparing method
InactiveCN1821336AHigh bonding strengthReduce initial resistanceEpoxy resin adhesivesElectrically-conducting adhesivesEpoxyAnisotropic conductive adhesive
The present invention relates to a kind of anisotropic conductive glue and its preparation process. The anisotropic conductive glue consists of conducting particle 8-12 wt%; micron and nanometer level filling material I capable of lowering the thermodynamic expansion coefficient 0.5-10 wt%; micron and nanometer level filling material II with self oxidizing sacrificing property in wet and hot environment 0.5-10 wt%; epoxy resin 50-85 wt%; and latent epoxy resin curing agent 5-18 wt%. The preparation process of the anisotropic conductive glue includes the following steps: mixing conducting particle and micron and nanometer level filling material to form the first solid mixture; mixing epoxy resin and latent epoxy resin curing agent to form the second mixture; and mixing the first mixture and the second mixture homogeneously to form the anisotropic conductive glue.
Owner:SHANGHAI UNIV
Powder dust adsorbing device
ActiveCN101185823AReduce initial resistanceLarge amount of dust absorptionDispersed particle filtrationFiltrationEngineering
The invention relates to a dust absorption device, which is especially suitable for absorbing the dust of electric welding soot with the grain diameter less than 15 millimeters. The device comprises a plurality of layers of flatbed typed filter screens or / and rippled filter screens with different meshes that are placed inside the frame in an overlapped way and made of stainless material; the periphery of each layer of flatbed typed filter screens or / and rippled filter screens are mutually overlapped via a U-shaped connecting component; a pressure frame is arranged between an upper frame and the U-shaped connecting component, and the pressure frame tightly presses the U-shaped connecting component via a plurality of adjustment bolts arranged on the upper frame; wherein, the outer layers of the plurality of layers of filtration screens are provided with strengthened filtration screens respectively. The multilayered overlapped combination of 400 to 1200 meshes forms larger spacing, which enlarges the filtration area and reduces the initial resistance of the device. The invention has the advantages of simple structure, large dust absorption amount within average area and high purification efficiency. Meanwhile, the filtration screens are made of stainless material, which has the advantages of anticorrosion, easy cleaning and maintenance and long service life, so that the operating cost is low, the energy consumption is low and the effect of energy conservation is remarkable.
Owner:ENERGY SAVING & ENVIRONMENTAL PROTECTION & OCCUPATIONAL SAFETY & HEALTH RES INST OF CHINA ACAD OF RAILWAY SCI CORP LTD
Filter material with composite ultrafine chopped fibers on surface
The invention provides a filter material with composite ultrafine chopped fibers on a surface. The filter material comprises a surface layer, a substrate and a bottom layer, wherein the bottom layer is needled by glass fibers, polyphenylene sulfide fibers and polytetrafluoroethylene fibers; and the surface layer is needled by polyphenylene sulfide fibers and polytetrafluoroethylene fibers. The filter material is characterized in that a composite layer formed by glass ultrafine chopped fibers, polyphenylene sulfide ultrafine chopped fibers and polytetrafluoroethylene ultrafine chopped fibers; in the composite layer, the fineness of the glass ultrafine chopped fibers is between 0.3 and 1.0dtex, the fineness of the polyphenylene sulfide ultrafine chopped fibers is between 0.4 and 1.5dtex, and the fineness of the polytetrafluoroethylene ultrafine chopped fibers is between 0.6 and 1.2dtex; and the mass ratio of the glass ultrafine chopped fibers to the polyphenylene sulfide ultrafine chopped fibers to the polytetrafluoroethylene ultrafine chopped fibers in the composite layer is (1:1:1.5)-(1:1:0.5). The filter material has the advantages that smoke and dust which have different properties are filtered, the filter resistance can be reduced, the energy consumption is reduced, and the service life of the filter material is prolonged and the like. The filter material is suitable for rapping, back flushing and other filter bags.
Owner:SHANGHAI JINYOU FLUORINE MATERIALS
Thermistor composite material with high sensitivity and high-temperature resistance, and preparation method thereof
InactiveCN107286538AReduced reunion mobilityImprove stabilityElectrical resistance and conductanceCross-link
The invention discloses a thermistor composite material with high sensitivity and high-temperature resistance. The thermistor composite material comprises the following raw materials by weight: 5 to 7 parts of graphene, 45 to 55 parts of a polymer material, 3 to 7 parts of a rare earth mixture, 15 to 25 parts of a conductive auxiliary material, 3 to 5 parts of a coupling agent, 6 to 8 parts of a metal oxide filling material, 20 to 30 parts of acrylic resin, 3 to 5 parts of a cross-linking aid and 2 to 4 parts of a performance improving aid. The thermistor composite material provided by the invention is low in initial resistance, fast in response speed and excellent in correlation between temperature and resistance, maintains good stability and reliability in severe environments like high temperature and has substantially prolonged service life; Meanwhile, a preparation method for the thermistor composite material uses easily available raw materials, is low in cost and simple in process, and has high practical value and good application prospects.
Owner:HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
Exhaust gas purifying device
PendingCN110252072ACompact structureReasonable designCombination devicesParticulatesHigh concentration
The invention discloses an exhaust gas purifying device. The exhaust gas purifying device comprises a casing. An air inlet is arranged at one end of the casing, and an air outlet is arranged on the upper portion of the other end of the casing. A centrifugal defogging zone, a primary effect filtration zone, a low temperature plasma zone, a UV photolysis zone, a final effect filtration zone and a centrifugal fan are sequentially inserted into the casing from the air inlet to the air outlet. Corresponding insertion grooves are formed in the inner wall of the casing. The centrifugal defogging zone comprises a support and centrifugal defogging devices. The centrifugal defogging devices are in array arrangement on the support matched with the insertion grooves. The primary effect filtration zone comprises a filtering frame and filtering cotton. The filtering cotton is sealed on the filtering frame matched with the insertion grooves. The exhaust gas purifying device has the advantages that the exhaust gas purifying device is compact in structure and reasonable in design, can treat high-humidity and high-concentration exhaust gases comprising complicated components and certain particles, and has low investment cost; the insertion structure facilitates maintenance and replacement, and operation and management are simple.
Owner:苏州罗克韦尔智能科技有限公司
Non-aqueous electrolyte secondary battery
PendingCN112242505AReduce initial resistanceFinal product manufactureNegative electrodesLithium tungstateAqueous electrolyte
A non-aqueous electrolyte secondary battery that is obtained using a lithium composite oxide having a layered structure as a positive electrode active material and has a low initial resistance and anincrease in resistance after repeated charging and discharging is suppressed. The non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a positive electrode active substance layer, which contains a lithium composite oxide having a layered structure. The lithium composite oxide is a porous particle. A surface of the porous particle includes a layer having a rock salt type structure. A thickness of the layer is not less than 5 nm and not more than 80 nm. A void ratio of the porous particle isnot less than 15% and not more than 48%. The porous particle contains two or more voids having diameters that are at least 10% of the particle diameter of the porous particle. The surface of the porous particle includes a coating of lithium tungstate.
Owner:TOYOTA JIDOSHA KK +1
Washable and reusable air filter element
PendingCN107413134AImprove filtration efficiencyReduce initial resistanceDispersed particle filtrationAir filterPulp and paper industry
The invention discloses a washable and reusable air filter element. According to the technical scheme, the washable and reusable air filter element comprises an upper end cap and a lower end cap, wherein a skeleton is arranged between the upper end cap and the lower end cap; a composite filter layer is fixed on the outer side of the skeleton; and a sealing ring for sealing the composite filter layer is arranged above the upper end cap. The filtering efficiency of the air filter element is obviously higher than that of paper air filter element, the initial resistance of the air filter element is obviously lower than that of the paper air filter element, the air filter element can be reused after being cleaned, and the service life of the air filter element is far greater than that of the paper air filter element.
Owner:王嵩野 +1
Non-aqueous electrolytic solution for lithium ion secondary cell
ActiveUS11094965B2Reduce initial resistanceSuppress increase in resistanceSecondary cellsOrganic electrolytesElectrolytic agentPhysical chemistry
Provided is a non-aqueous electrolytic solution for a lithium ion secondary cell that can reduce the initial resistance of the lithium ion secondary cell and can suppress the increase in resistance when the lithium ion secondary cell is allowed to stand at high temperature. The non-aqueous electrolytic solution for a lithium ion secondary cell disclosed herein includes a light metal salt represented by the following formula (I) and a silyl sulfate compound represented by the following formula (II). The content of the light metal salt in the non-aqueous electrolytic solution for a lithium ion secondary cell is 0.1% by mass or more and 1.5% by mass or less. The content of the silyl sulfate compound in the non-aqueous electrolytic solution for a lithium ion secondary cell is 0.1% by mass or more and 5.0% by mass or less (each symbol in the formulas is as defined in the specification).
Owner:TOYOTA JIDOSHA KK
Method capable of realizing unloading during engine braking and engine starting and stopping
InactiveCN101943063AReduce initial resistanceExtended service lifeElectrical controlOutput powerExhaust valveSolenoid valve
The invention relates to a method capable of realizing unloading when an engine is braked or the engine is started or stopped, which is composed of a servovalve mechanism and an oil circuit controlling mechanism and is characterized in that the servovalve mechanism comprises a locknut, a stop collar, a stretching screw, a piston, a check ring and a piston spring; and the oil circuit controlling mechanism comprises a solenoid valve, a control valve, a control valve clamp spring, a control valve return spring and a braced frame. The stop collar, the piston, the check ring and the piston spring move downward under the function of oil pressure to push a slide valve on an engine valve bridge in order to open an exhaust valve about 1 mm before the engine is started. Under the two conditions that the engine is started or stopped, the initial resistance of the compression stroke can be reduced when the engine is started, the resisting moment is decreased when a starting engine rotates a crankshaft and the service life of the starting engine is prolonged; under the condition of braking, the exhaust value is opened at an angle before a top dead center is compressed, and the engine which is equivalent to an air compressor consumes kinetic energy to slow a vehicle in order to achieve the braking effect. The invention has the advantages of simple structure and control system and high response speed; and the engine consumes the least energy in the whole starting process, which improves the economy of the whole engine.
Owner:FAW GROUP
Anti-static composite filtering material and preparing method thereof
PendingCN107050999ALow initial resistanceIncrease dust holding capacityLaminationLamination apparatusHookingMaterials science
The invention discloses an anti-static composite filtering material and a preparing method thereof. The anti-static composite filtering material comprises a first filtering layer, a second filtering layer, and a stainless steel wire, the first filtering layer and the second filtering layer are a G5 collodion-free filtering layer and a G3 collodion-free filtering layer, an overall structure is formed through press fitting twice, and needling hooking is achieved through a stainless steel wire. According to the anti-static composite filtering material and the preparing method thereof, the filtering efficiency is improved, the anti-static composite filtering material has a certain flame retardant effect and an anti-static effect, and is not prone to deformation, the intensity and inoxidizability of a filter material are added, and the service life is long.
Owner:洁禹通(青岛)环保科技有限责任公司 +1
Intensified and compact air conditioner set
InactiveCN101149180AReduced internal windage lossImprove coiling efficiencyLighting and heating apparatusSpace heating and ventilation detailsHoneycombEngineering
This invention discloses an intensive compact type air conditioner unit. It includes casing, primary-efficiency filter, heat exchanger and fan. The fan, which is driven by motor, is arranged in the back of the heat exchanger. The heat exchanger uses oval copper pipe. The heat exchanger fin uses honeycomb type aluminum fin. This invention has compact structure and good working capability.
Owner:JIANGSU FENGSHEN AIR CONDITIONING GRP
Combined heat recovery air conditioning unit
PendingCN112503634ALightweight panel structureReduce initial resistanceEnergy recovery in ventilation and heatingDucting arrangementsSurface coolingFresh air
The invention provides a combined heat recovery air conditioning unit, and belongs to the technical field of air conditioners. The combined heat recovery air conditioning unit comprises a mounting box, a first layer cavity and a second layer cavity are formed in the mounting box, an exhaust air outlet and a second electric air valve are arranged at the left end of the mounting box, and an exhaustair inlet is formed in the rear end of the mounting box. A fresh air outlet is formed in the upper end of the mounting box, an exhaust pipe is connected to the upper end of the fresh air outlet, an exhaust cylinder is arranged at the upper end of the exhaust pipe, a galvanized plate air return pipe is arranged at the rear end of the exhaust pipe, and the other end of the galvanized plate air return pipe is connected with the exhaust air inlet. An exhaust fan, a first surface cooling water retaining section, a first electric air valve and a first plate type G filter are sequentially arranged inthe first layer cavity from left to right. By means of the combined heat recovery air conditioning unit, fresh air energy consumption can be reduced, meanwhile, the air conditioner load is reduced, and therefore the operation cost of air conditioning equipment is reduced, exhaust air and fresh air are combined, and cross contamination is avoided.
Owner:上海永大菌业有限公司
Transformer immersion oil filter paper
InactiveCN108261837ALarge filter areaReduce initial resistancePaper/cardboard layered productsCoatingsFiltrationThree stage
The invention relates to a transformer immersion oil filter paper. The transformer immersion oil filter paper comprises an outer filter bag, a solid waste filtering layer and a water absorbing layer are arranged in the outer filter bag, and the solid waste filtering layer is arranged above the water absorbing layer. The transformer immersion oil filter paper has a large filtering area, a low initial resistance, a high waste scrap capacity and a long service life. Solids in old transformer oil undergo three-stage filtration by a scrap accommodating layer, a transition layer and a fine filter layer, so solid impurities can be removed, the filtration efficiency is high, and the filtration effect is good; and water in the old transformer oil can be adsorbed by the water absorbing layer to complete dewatering work, and the filtering work and the dewatering work are simultaneously completed, so the operation is simplified, manpower and material resources are saved, and the implementing effect is good.
Owner:TONGLING RIKE ELECTRONICS
Non-aqueous electrolytic solution for lithium ion secondary cell
ActiveUS20200091555A1Small initial resistanceImprove the immunitySecondary cellsOrganic electrolytesElectrolytic agentPhysical chemistry
Provided is a non-aqueous electrolytic solution for a lithium ion secondary cell that can reduce the initial resistance of the lithium ion secondary cell and can suppress the increase in resistance when the lithium ion secondary cell is allowed to stand at high temperature. The non-aqueous electrolytic solution for a lithium ion secondary cell disclosed herein includes a light metal salt represented by the following formula (I) and a silyl sulfate compound represented by the following formula (II). The content of the light metal salt in the non-aqueous electrolytic solution for a lithium ion secondary cell is 0.1% by mass or more and 1.5% by mass or less. The content of the silyl sulfate compound in the non-aqueous electrolytic solution for a lithium ion secondary cell is 0.1% by mass or more and 5.0% by mass or less (each symbol in the formulas is as defined in the specification).
Owner:TOYOTA JIDOSHA KK
Non-woven needle
InactiveCN102817185BIncrease the probability of hooking fabric fibersIncrease productivityNeedling machinesFiberBiomedical engineering
The invention provides a non-woven needle which comprises a needle bar section, a work section and a needle point section, wherein the work section and the needle point section sequentially extend along a first direction; the work section comprises a first local section, a second local section and a first reducing cone for connecting the first local section with the second local section; a plurality of first hook teeth are annularly distributed on the surface of the first local section; a plurality of second hook teeth are annularly distributed on the surface of the second local section; the diameter of the first local section is greater than that of the second local section; and the depths of the first hook teeth are greater than the depths of the second hook teeth. According to the non-woven needle disclosed by the invention, the work section of the non-woven needle is arranged into the first local section and the second local section of which the diameters are gradually reduced; and the first hook teeth and the second hook teeth are spirally and annularly arranged on the surfaces of the first local section and the second local section. Due to the adoption of the structure, the probability that fabric fibers are hooked by the hook teeth on the surface of the non-woven needle is remarkably improved, the initial resistance of needling is reduced and the production efficiency is increased.
Owner:防城港市北部湾桂海农业科技有限公司
Reusable efficient virus isolation device
PendingCN112690522AEffective filteringEnsure safetyGarment special featuresDispersed particle filtrationEngineeringMechanical engineering
The invention relates to the technical field of virus isolation and ventilation equipment in the respiratory science industry of labor protection products, in particular to a reusable efficient virus isolation device. The device comprises a mask, and a wearing part is arranged on the mask; the mask comprises a flexible power supply unit, a miniature boosting conversion unit, a sealing unit, a flexible field emission unit and a film filter disc. The flexible power supply unit, the micro boost conversion unit, the flexible field emission unit and the film filter are all arranged in the sealing unit; the flexible field emission unit comprises a flexible micro-cone array cathode and a flexible anode, an elastic breathable insulating layer is arranged between the flexible micro-cone array cathode and the flexible anode, and the flexible anode is attached to the film filter; the flexible power supply unit is in circuit connection with the miniature boost conversion unit, and the miniature boost conversion unit is in circuit connection with the flexible micro-cone array cathode and the flexible anode. The mask is compact in structure and small in initial resistance, viruses adsorbed on aerosol and incapable of being filtered out by a traditional mask can be filtered out, and personal safety is guaranteed.
Owner:WUHAN UNIV OF TECH
Powder dust adsorbing device
ActiveCN101185823BReduce initial resistanceLarge amount of dust absorptionDispersed particle filtrationFiltrationEngineering
The invention relates to a dust absorption device, which is especially suitable for absorbing the dust of electric welding soot with the grain diameter less than 15 millimeters. The device comprises a plurality of layers of flatbed typed filter screens or / and rippled filter screens with different meshes that are placed inside the frame in an overlapped way and made of stainless material; the periphery of each layer of flatbed typed filter screens or / and rippled filter screens are mutually overlapped via a U-shaped connecting component; a pressure frame is arranged between an upper frame and the U-shaped connecting component, and the pressure frame tightly presses the U-shaped connecting component via a plurality of adjustment bolts arranged on the upper frame; wherein, the outer layers ofthe plurality of layers of filtration screens are provided with strengthened filtration screens respectively. The multilayered overlapped combination of 400 to 1200 meshes forms larger spacing, whichenlarges the filtration area and reduces the initial resistance of the device. The invention has the advantages of simple structure, large dust absorption amount within average area and high purification efficiency. Meanwhile, the filtration screens are made of stainless material, which has the advantages of anticorrosion, easy cleaning and maintenance and long service life, so that the operatingcost is low, the energy consumption is low and the effect of energy conservation is remarkable.
Owner:ENERGY SAVING & ENVIRONMENTAL PROTECTION & OCCUPATIONAL SAFETY & HEALTH RES INST OF CHINA ACAD OF RAILWAY SCI CORP LTD
Non-woven needle of fabric
InactiveCN105780304AIncrease the probability of hooking fabric fibersImprove work efficiencyNeedling machinesFiberPuncture resistance
The invention provides a non-woven needle of fabric. The non-woven needle comprises a needle rod segment, a work segment and a needle point segment. The work segment and the needle point segment longitudinally extend in the first direction in sequence. The work segment is a triangular spiral body and is provided with a plurality of hook tooth sets, each hook tooth set comprises three hook teeth located on the same horizontal plane, and the hook teeth in the hook tooth sets are located on the edges of the work segment and are gradually enlarged in the second direction opposite to the first direction. The hook tooth sets gradually enlarged in equal proportion are arranged on the spiral edges of the work segment of the non-woven needle of the fabric, so that the probability that the hook teeth hook fabric fibers is reduced, initial puncture resistance of the non-woven needle is reduced, and therefore work efficiency is improved, and the phenomenon of needle breakage is reduced.
Owner:梁旭
Cathode active material for lithium secondary battery, preparation method therefor, and lithium secondary battery comprising same
PendingUS20220006081A1Reduce initial resistanceImprove discharge performanceElectrode thermal treatmentElectrode carriers/collectorsManganeseBattery cell
The present disclosure relates to a cathode active material for a lithium secondary battery, a preparation method therefor, and a lithium secondary battery comprising same, and the cathode active material includes a lithium nickel cobalt manganese-based oxide represented by Chemical Formula 1 including secondary particles obtained by agglomerating at least one primary particle, and a metal oxide particles having a nano-sized average diameter (D50) and disposed inside the secondary particles.Lia[NixCoyMnz]tM1-tO2-pXp. [Chemical Formula 1]
Owner:POSCO HLDG INC +1
High-dust-holding medium-efficiency trapezoidal filter bag
PendingCN114191889AGuaranteed efficiencyReduce initial resistanceDispersed particle filtrationLayered productsFiberUltrasound device
The invention discloses a high-dust-holding medium-efficiency trapezoidal filter bag in the technical field of medium-efficiency bag filters, which comprises a filter bag body with a trapezoidal vertical section and a mounting part mounted on the bottom wall of the filter bag body, and the area of the cross section of the filter bag body is gradually increased from bottom to top. According to the medium-efficiency trapezoidal bag type filter, the filter material is formed by compounding hardened hot air cotton, two-component melt-blown fibers, large-diameter melt-blown fibers and the anti-sticking layer, and automatic trapezoidal sewing is performed through customized and developed ultrasonic equipment, so that the filter material is high in structural strength and good in filling power; the efficiency of the bag type filter is guaranteed, the initial resistance of the filter is reduced, and the dust holding capacity is greatly improved due to the fact that the filter material has enough bulkiness.
Owner:苏州科佳健康科技有限公司
Non-woven needle
InactiveCN102817185AIncrease the probability of hooking fabric fibersIncrease productivityNeedling machinesFiberBiomedical engineering
The invention provides a non-woven needle which comprises a needle bar section, a work section and a needle point section, wherein the work section and the needle point section sequentially extend along a first direction; the work section comprises a first local section, a second local section and a first reducing cone for connecting the first local section with the second local section; a plurality of first hook teeth are annularly distributed on the surface of the first local section; a plurality of second hook teeth are annularly distributed on the surface of the second local section; the diameter of the first local section is greater than that of the second local section; and the depths of the first hook teeth are greater than the depths of the second hook teeth. According to the non-woven needle disclosed by the invention, the work section of the non-woven needle is arranged into the first local section and the second local section of which the diameters are gradually reduced; and the first hook teeth and the second hook teeth are spirally and annularly arranged on the surfaces of the first local section and the second local section. Due to the adoption of the structure, the probability that fabric fibers are hooked by the hook teeth on the surface of the non-woven needle is remarkably improved, the initial resistance of needling is reduced and the production efficiency is increased.
Owner:防城港市北部湾桂海农业科技有限公司
Memory device and manufacturing method therefor
ActiveCN102656689BUneven initial resistance valueReduce initial resistanceSolid-state devicesDigital storageElectrical impulseEngineering
Disclosed is a memory device provided with a plurality of memory cells and a lead-out line (12) shared among the memory cells. Each memory cell is provided with a transistor (6) formed above a substrate (1) and a variable resistance element (10) having a lower electrode (7), an upper electrode (9) that comprises a noble metal, and a variable resistance layer (8) disposed between the lower electrode (7) and the upper electrode (9). The resistance value of the variable resistance layer (8) changes reversibly in response to electric pulses that go through the transistor (6) and are applied between the lower electrode (7) and the upper electrode (9). The lead-out line (12) is in direct contact with the upper electrodes (9) of the memory cells.
Owner:PANASONIC SEMICON SOLUTIONS CO LTD
fabric non-woven needle
ActiveCN102817186BIncrease the probability of hooking fabric fibersImprove work efficiencyNeedling machinesFiberEngineering
The invention provides a nonwoven needle which comprises a shaft segment, an operating segment and a tip segment. The operating segment and the tip segment extend out sequentially lengthwise along a first direction. The operating segment is in a shape of a triangular spiral and is provided with a plurality of hooked tooth sets. Each hooked tooth set includes three hooked teeth on a same horizontal plane, and the hooked teeth in the hooked tooth set are located at edges of the operating segment and gradually enlarge in a second direction opposite to the first direction. The hooked tooth sets which gradually enlarge in equal proportion are arranged at spiral edges of the operating segment of the nonwoven needle, the probability that the hooked teeth hook to fabric fiber is increased, initial penetrating resistance of the needle is reduced, operating efficiency is improved, and needle breakage is reduced.
Owner:苏州盛泽科技创业园发展有限公司
Positive electrode material and lithium secondary battery using same
ActiveUS20190097219A1Improve structural stabilitySuitable for downsizingPositive electrodesLi-accumulatorsShortest distanceElectrical battery
The present invention provides a positive electrode material for lithium secondary batteries, having: a positive electrode active material containing Li; and a cover disposed on the positive electrode active material, and containing Li and F, and further containing one or two or more cover elements from among Al, Ti, Zr, Ta and Nb. With a Point a as an arbitrary point of the cover in contact with the positive electrode active material, a Point c as a point on the surface of the cover at a shortest distance from the Point a, and a Point b as a midpoint between the Point a and the Point c, an analysis of the Point a, the Point b and the Point c by X-ray photoelectron spectroscopy yields a ratio of Li concentration at the Point a with respect to the Li concentration at the Point b is 1.1 or higher and lower than 10.8, and a ratio of F concentration at the Point c with respect to F concentration at the Point b is 1.1 or higher and lower than 51.1.
Owner:TOYOTA JIDOSHA KK
A kind of ultra-high polymer microporous filter material, processing equipment and processing method
The invention relates to an ultrahigh molecular microporous filter material. The ultrahigh molecular microporous filter material comprises, by mass percent, 77%-81% of ultrahigh molecular weight polyethylene powder, 8.4%-8.8% of high density polyethylene powder, 7.1%-8.3% of hollow glass beads and 4.5%-4.9% of conductive black. Machining equipment of the microporous filter material comprises a charging machine, a speed reducer, an extruder, a reciprocating dragger, a stabilization cavity, a cutting machine and a conveying belt. The charging machine is connected with a charging hopper of the extruder through a charging pipeline. The input end of the extruder is connected with the speed reducer, and the reciprocating dragger, the stabilization cavity, the cutting machine and the conveying belt are sequentially arranged at the output end of the extruder. The ultrahigh molecular microporous filter material is an air purification filter material which is low in cost, long in service life, efficient, low in resistance and capable of filtering away pm2.5. The ultrahigh molecular microporous filter material is high in precision, strength and efficiency, long in service life, capable of being repeatedly utilized and resistant to corrosion and static electricity. Huge linkage economic benefits and social benefits are generated.
Owner:丹东天皓净化材料有限公司
Impermeable self-compacting concrete and preparation method thereof
The invention relates to impermeable self-compacting concrete and a preparation method thereof, and belongs to the technical field of concrete preparation. The preparation method comprises the following steps: firstly, taking aluminum sulfate as an aluminum source, urea as a precipitator and methyl amyl alcohol as a dispersing agent, preparing superfine spherical aluminum oxide with the particle size of 200nm, high dispersity and good spherical roundness through an auxiliary homogeneous precipitation method, then preparing porous silicon carbide, adhering tetraethoxysilane into the porous silicon carbide, and performing packaging with paraffin to prepare a self-made dense filler. The two self-made additives are used for improving the compactness and the impermeability of the final concrete material, and the concrete has a wide application prospect.
Owner:袁玲
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