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Detection device, three-dimensional printer and three-dimensional printing method
ActiveCN104552946APrevent runawayAvoid quality problemsAdditive manufacturing apparatusOptical detectionEngineeringRestoring force
The invention relates to a detection device used in a fused deposition type three-dimensional printer. The detection device comprises a mounting seat and a first detection unit, wherein the first detection unit comprises a first detection wheel, a spring, a first photoelectric sensor as well as a positioning roller and an extrusion roller rotatably mounted on the mounting seat; an axis of the extrusion roller is parallel to that of the positioning roller, and the distance between the axes is adjustable; restoring force of the spring enables the distance between the axis of the extrusion roller and the axis of the positioning roller to be reduced; a channel for wire forming is formed between a working surface of the extrusion roller and a working surface of the positioning roller wheel; the first detection wheel is coaxially connected with the extrusion roller or the positioning roller in an equal-angular-speed manner; the first detection wheel comprises a base part and a covering part circumferentially arranged along the base part; a light path of the first photoelectric sensor penetrates through a plane formed by rotating the covering part around an axis of the first detection wheel. The detection device can be used for detecting whether the three-dimensional printer has the problems of empty printing and the like or not. In addition, the invention further provides the three-dimensional printer employing the detection device and a printing method of the printer.
Owner:PRINT RITE UNICORN IMAGE PROD CO LTD
Method for controlling hot rolling coiling tension
ActiveCN102125936ASolve the problem of narrowing the widthAvoid quality problemsTension/compression control deviceEngineeringStrip steel
The invention discloses a method for controlling hot rolling coiling tension. Strip steel coiling is controlled by a two-level tension control method. The method mainly comprises the following steps of: calculating a first level set value and a second level set value; starting first level tension control according to a calculating result when the head part of strip steel enters a coiling machine;when actually measured coil moment reaches the first level moment set value, delaying some time and starting second level tension control until the strip steel is completely coiled; detecting and determining the width and the coiling quality of the strip steel, and adjusting a tension coefficient if the detected width and coiling quality of the strip steel is unqualified; and performing a self-adapting step. The control method overcomes the defects of the prior art and well solves the problem that the width quality and the coiling quality of the strip steel cannot be qualified at the same time, and the width of the strip steel is ensured as well as the coiling quality of the strip steel.
Owner:BAOSHAN IRON & STEEL CO LTD
Exothermic composition and exothermic article using composition, and method for producing exothermic article
InactiveCN1491271AAccurate Guaranteed QuantityHas dispersion stabilityExothermal chemical reaction heat productionHeat-exchange elementsDispersion stabilityChemical composition
It relates to a heat-generating composition having such dispersion stability that withstands continuous molding, and has excellent drainage property, excellent heat-generating characteristics, excellent molding property and excellent shape retaining property, without becoming viscous, and relates to a heat-generating body using the same and a process for producing the heat-generating body. It contains, as essential components, a heat-generating substance generating heat upon reaction with oxygen, a carbon component, an oxidation promoter and water, characterized in that the composition further contains a water separation-preventing stabilizer in a proportion of from 0.001 to 0.25 part by mass per 100 parts by mass of the heat-generating composition, and has a water mobility value of from 7 to 40 and a separation degree of from 0 to 30.
Owner:MYCOAL
Fermented grains-fruit juice wine and its brewing process
InactiveCN1363652AConsistent qualityConsistent tasteAlcoholic beverage preparationFruit wineFruit juice
A fermented wine is prepared from grains and fruit juice (grape juice) through proportioning, mixing, fermenting and distillation. Its advantages include both grain wine smell and fruit wine smell ,unique taste and rich nutrients.
Owner:马兴宝
Split air conditioner with fresh air purification intelligent control device
InactiveCN104879842AAvoid quality problemsEasy to installMechanical apparatusSpace heating and ventilation safety systemsLow noiseParticulates
The invention discloses a split air conditioner with a fresh air purification intelligent control device. The split air conditioner with the fresh air purification intelligent control device comprises an outdoor unit and an indoor unit, wherein a fresh air pipe, a fresh air valve, an air return valve, an air quality detection sensor, a purification and filtering system, an evaporator, an auxiliary heater, a double-air-inlet low-noise centrifugal air supply fan and an air supply outlet with manual adjustable swing blades are sequentially arranged in the indoor unit from bottom to top. The split air conditioner with the fresh air purification intelligent control device fully solves the problem of poor indoor air quality, and outdoor fresh air can be introduced inside at proper time and can be purified; temperature and humidity adjustment can be realized; indoor VOC harmful gas can be removed; the air conditioner is provided with an internal circulation working mode and an external circulation working mode, i.e., a fresh air mode and a mixed air mode; the one-step filtering efficiency of inhalable particulate matters PM2.5 at the indoor air outlet can reach more than 90 percent and the national good standard of less than 35mg can be reached; the split air conditioner with the fresh air purification intelligent control device is convenient to install, and the installation, debugging and maintenance are facilitated by adopting a split design; the cost performance of the entire air conditioner is high, and the air conditioner is low-carbon, energy-saving, healthy and comfortable.
Owner:CHENGDU GUIGU ENVIRONMENTAL TECH
Method and equipment for manufacturing surfacing composite wear-resistant steel plate
ActiveCN102107315AImprove flatnessShrink flatWelding/cutting media/materialsSoldering mediaSheet steelWear resistant
The invention discloses a method for manufacturing a surfacing composite wear-resistant steel plate, which comprises the following steps of: tiling a steel base plate on a water-cooled platform, and compacting the steel base plate by employing front and rear side compaction devices respectively; after a weld pass is welded, opening the front and rear side compaction devices, and conveying the steel base plate for a certain distance forward through a pinch roll device; and repeating the steps for surfacing, until a flat surfacing composite wear-resistant steel plate with a high-chromium alloy wear-resistant layer is obtained on the whole steel base plate. A piece of equipment for manufacturing the surfacing composite wear-resistant steel plate applied to the method for manufacturing the surfacing composite wear-resistant steel plate comprises a portal frame, a welding device, a rear side compaction device, a front side compaction device, a water-cooled platform, a pinch roll device and a frame, wherein the rear side compaction device is arranged on the rear side of the welding device; and the front side compaction device is arranged on the front side of a welding gun of the welding device. The composite wear-resistant steel plate welded through the manufacturing method is small in deformation and high in welding quality and is not limited to specifications.
Owner:CHANGZHOU FUTONG WELDING
Reconstructable hybrid machine tool of mechanical system and fault tolerance correcting method
InactiveCN101444892AImplement refactoringImprove efficiencyLarge fixed membersMetal working apparatusFault toleranceNumerical control
The invention belongs to a numerical control processing machine tool, comprising a fixed platform, a movable platform, a space parallel connection closed chain mechanism formed by the central leg and the surrounding leg of a redundancy drive device which are arranged between the two platforms and are all provided with a transmission system, a locking device arranged between the hinged saddle of the central leg and the movable platform, a gear rack transmission mechanism arranged between the redundancy drive device and the central leg and between the redundancy drive device and the surrounding leg, a working platform which can move along X direction and Y direction, and a control system. The reconstruction and fault tolerance correcting method in the operation of the machine tool is as follows: when one transmission system in any drive device goes wrong, a redundancy transmission system automatically converts; when two transmission systems in any drive device go wrong, a corresponding leg thereof is converted into a driven leg, thus leading the parallel connection closed chain mechanism to be changed from four freedom degrees into three freedom degrees so as to maintain the normal operation of the machine tool, thereby being capable of effectively improving the efficiency, safety and reliability of the hybrid machine tool, and avoiding the quality or safety accidents caused by sudden failures in the operation of the machine tool.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
Dynamic code rate allocation method and packet domain stream media server
InactiveCN101242359AAvoid Mosaic PhenomenonAvoid quality problemsTwo-way working systemsData switching networksUser deviceDistribution method
The inventive embodiment discloses a dynamic code rate allocation method, comprising the steps that: the roundtrip time of a sender report packet is acquired; whether the roundtrip time meets the preset conditions is judged; code rate switch is carried out, when the roundtrip time meets the conditions; and the switched media data is sent. The inventive embodiment also discloses a dynamic code rate allocation method, comprising the steps that: the code rate is judged whether to be adjusted, when the bandwidth of a user device changes; and code rate switch is carried out when the current transmission frame is complete. Furthermore, the inventive embodiment discloses corresponding packet domain flow media server and wireless network controller. By using the invention, mobile flow media is played more fluently when switched.
Owner:HUAWEI TECH CO LTD
Lignosulfonate-polycarboxylic acid copolymerized composite high-performance water reducer and preparation method thereof
The invention discloses a lignosulfonate-polycarboxylic acid copolymerized composite high-performance water reducer and a preparation method thereof. The high-performance water reducer comprises the components in parts by weight: 5-30 parts of lignosulfonate, 20-30 parts of methyl allyl polyethenoxy ether, 2-5 parts of acrylic acid, 1-5 parts of ammonium persulfate, 4-15 parts of sodium hydroxide and water. The preparation method comprise the steps as follows: lignosulfonate, methyl allyl polyethenoxy ether and acrylic acid are directly synthesized under the action of ammonium persulfate, and the mixture is neutralized by sodium hydroxide to obtain the high-performance water reducer. As the high-performance water reducer is made from natural recycled materials, the high-performance water reducer is low in price, stable in performance, high in water-reducing rate, good in collapse prevention property, remarkable in improved effect, and is unlikely to bleed, separate and deposit after concrete is added, the quality problems of sand leakage, honeycomb-like phenomenon and leakage due to cracking in the middle and low-strength concretes are effectively avoided, and the safety performance is improved.
Owner:MAANSHAN CHINASEA NEW MATERIAL
Three-dimensional memory device and preparation method thereof
ActiveCN109712977AAvoid destructionReduce processing costsSolid-state devicesSemiconductor devicesEngineeringPolycrystalline silicon
The invention provides a preparation method of a three-dimensional memory device. The method includes the following steps: sequentially forming an etching stop layer, a first stack, and first channelholes exposing the etching stop layer on a first substrate; forming a first polysilicon plug on a first sacrificial material layer filled in each of the first channel holes, and disposing a carrier wafer thereon; removing the first substrate, and forming a second stack and second channel holes on the other side of the etching stop layer to expose the etching stop layer; removing the etching stop layer between each of the first channel holes and each of the second channel holes, and removing the first sacrificial material layer; covering sidewalls of the first channel holes and the second channel holes with protective layers, and etching parts of the first stack and the second stack exceeding the remaining etching stop layer along radial directions of the channel holes, and removing the protective layers to form a through channel hole; and filling the through channel hole form a single channel. The invention also provides the three-dimensional memory device.
Owner:YANGTZE MEMORY TECH CO LTD
Solar energy battery copper-indium-gallium-selenium film key target material and preparation method thereof
InactiveCN101260513AAvoid quality problemsQuality assuranceVacuum evaporation coatingSputtering coatingIndiumSolar battery
The invention relates to a solar battery cuprum-indium-gallium-selenium film key target material and a preparation method thereof. The target material uses cuprum-indium-gallium-selenium element powders as raw material; CIGS powder is prepared by adopting solid phase synthesis and further isostatic compaction; finally a CIGS target material is prepared by high temperature sintering. The target material is used as raw material and a CIGS film can be achieved by further sputtering. In the invention, the four-element component key target material preparation technology is simplified from 'fractional deposition---selenizing optimization'to'one-step deposition', thereby solving the complex technological process of multiple target replacements and repeated depositions and the quality problem caused by late-stage selenylation; the adjustment of the components is carried out by the target material; the late-stage sputtering technology only needs to ensure the quality of film forming, thereby increasing the controllability of the technology.
Owner:王东生
Method and device for detecting designated location point of variation
ActiveCN106909806AAvoid quality problemsAvoid interferenceSequence analysisHybridisationAlgorithmBioinformatics
The invention discloses a method for detecting a designated location point of variation. The method comprises the following steps that a designated location point of variation and a reference sequence containing the variation are determined based on known information of the variation; sequencing data of nucleic acid of a sample to be detected is obtained, wherein the sequencing data comprises multiple read segments; the read segment containing the designated location point in the sequencing data is extracted, and then the designated read segment is obtained; N bps are extended in the directions of both ends centered on the designated location point of the designated read segment, a designated fragment is obtained, 4<=N<=10; the designated fragment is compared with the reference sequence containing the variation, and then a support read segment is obtained, wherein the support read segment is a read segment where the designated fragment matched with the reference sequence containing the variation is located; the amount of the support read segment is counted, and whether or not the variation exists is judged based on the amount of the support read segment. Attention is paid to whether or not sequence characteristics which should occur after the variation exist in the read segment, and based on the judgment, detection of the designated location point of the variation is carried out; the problem of the decline in the quality of the comparison near the variation location point is avoided, and the variation can be detected quickly and accurately.
Owner:BGI GUANGZHOU MEDICAL LAB CO LTD +1
Method for increasing yield of double cropping rice by turnover and fertilizer saving of Astragalus sinicus L. and straw in rice field
InactiveCN104145618AAvoid quality problemsAvoid quality lossCrop conditionersMowersCropping systemAgricultural science
The invention belongs to the technical field of fertilizer-saving high-yield culture in agricultural production and relates to a method for increasing yield of double cropping rice by turnover and fertilizer saving of Astragalus sinicus L. and straw in a rice field. Specifically, the method includes that during growth of early rice, green Astragalus sinicus L. is overturned and pressed to return to the field so as to replace part of nitrogenous fertilizer, and during growth of late rice, straw of the early rice is returned to the field to replace part of nitrogenous fertilizer, and purposes for nitrogenous fertilizer conservation and high yield are achieved in the integral production cycle of double cropping rice. The method solves the problems that areas of vacant fields in winter are enlarged, the rice field is deteriorated, ecological cost for rice production is increased, and fertilizer utilization rate is seen low and the like in a rice cropping system of southern China. The method is a cultivating technology high in yield, nitrogenous fertilizer saving and lower in N2O emission and provided for increasing yield of the double cropping rice, reducing fertilizer investment and increasing fertilizer utilization rate.
Owner:CHINA AGRI UNIV
Thermal shrinkage biaxially oriented film
InactiveCN102059836ACrystallization perfectHigh heat shrinkageSynthetic resin layered productsTime changesAcrylic resin
The invention discloses a thermal shrinkage biaxially oriented film which is composed of a surface layer, a sandwich layer and an inner layer, wherein the thickness of the surface layer is 0.5-1.5 micrometers, the thickness of the sandwich layer is 19-22 micrometers, the thickness of the inner layer is 0.5-1.5 micrometers, and the total thickness of the three layers is 20-23 micrometers. The surface layer comprises the following components in percentage by weight: 97-99% of acrylic resin copolymer, 0.5-2% of lubricant and 0.1-1% of antiblocking agent. The sandwich layer comprises 80-93% of acrylic resin homopolymer, 0.3-3% of anti-static agent, 0.1-0.5% of crystal regulator, 1-2% of surfactant, 5-18% of stiffening agent and 0.5-1% of lubricant. The inner layer comprises 97-99% of acrylic resin copolymer, 0.5-2% of lubricant and 0.1-1% of antiblocking agent. The film has a stable thermal shrinkage factor which slightly changes as the storage time changes.
Owner:ZHONGSHAN FLASHLIGHT POLYTECHNIC
Method for forming fin type field effect transistor
ActiveCN104979198AThickness is easy to controlAccurate adjustment of thicknessSemiconductor/solid-state device manufacturingGate dielectricLayer thickness
A method for forming a fin type field effect transistor comprises the steps of providing a semiconductor substrate which comprises a first region and a second region, wherein a first fin part is formed on the first region and a second fin part is formed on the second region, and an insulating layer is formed on the semiconductor substrate; forming a barrier layer on the second fin part; forming a first pseudo gate structure on the first region; forming a second pseudo gate structure on the second region, wherein the second pseudo gate structure is arranged on the surface of the barrier layer and bestrides the second fin part; forming a dielectric layer which is level with the first pseudo gate structure and the second pseudo gate structure on the semiconductor substrate; eliminating the first pseudo gate structure for forming a first groove which is exposed from the surface of the first fin part, and eliminating the second pseudo gate structure for forming a second groove which is exposed from the barrier layer on the second fin part; and forming a first gate structure in the first groove, and forming a second gate structure in the second groove. The method of the invention can be used for accurately adjusting the gate dielectric layer thickness of the fin type field effect transistor which is formed on different regions.
Owner:SEMICON MFG INT (SHANGHAI) CORP
Method for reconstructing human facial image super-resolution based on similarity of facial characteristic organs
InactiveCN102354397AReduce preprocessing timeAvoid image distortionImage enhancementImage extractionImage resolution
The invention discloses a method for reconstructing human facial image super-resolution based on the similarity of facial characteristic organs. The method comprises the following steps of: 1, establishing a high-resolution front human facial image library and a high-resolution characteristic organ image library by utilizing a gray scale projection method according to a preset ideal high-resolution human facial image; 2, extracting a low-resolution characteristic organ image from a low-resolution target human facial image; 3, performing bicubic interpolation on the low-resolution target humanfacial image and the low-resolution characteristic organ image to acquire a training image set of the low-resolution image; 4, constructing characteristic space corresponding to the training image set by the training image set to reconstruct projection vectors of a corresponding high-resolution integral human facial image and a corresponding high-resolution organ image; and 5, fusing the high-resolution integral human facial image and the high-resolution characteristic organ image into a high-resolution target human facial image. The method has the characteristics of less preprocessing time, high retrieval accuracy of training images, high trueness of the acquired human facial images and the like.
Owner:DALIAN UNIV OF TECH
Interactive presentation method and system of GIS and BIM augmented reality in tubelane and subway construction
ActiveCN107037881AGood interactivityAvoid delays in communicationInput/output for user-computer interactionGraph readingTerrainThree dimensional model
The present invention discloses an interactive presentation method and system of GIS and BIM augmented reality in tubelane and subway construction. The method comprises: a GIS combines an elevation digital model with a BIM to generate a three-dimensional model, and establishes a terrain three-dimensional model on the elevation digital model, and establishes a tubelane-subway three-dimensional model on the BIM and stores the model into a database server; an imaging apparatus acquires a feature range on media, an AR client calls a terrain three-dimensional model and a tubelane-subway three-dimensional model with corresponding numbers according to the feature range to generate an overall three-dimensional model, and outputs the overall three-dimensional model into the corresponding feature range in a display device for overlapped display; and a sometosensory device acquires a corresponding gesture action of an operator, the AR client calls a terrain three-dimensional model and a tubelane-subway three-dimensional model with corresponding numbers according to the gesture action and outputs the terrain three-dimensional model and the tubelane-subway three-dimensional model into the corresponding feature range in the display device for overlapped display. The method and system disclosed by the present invention realize automatic identification and query of AR, and greatly improve working efficiency and quality.
Owner:广西七三科技有限公司
Electric copper plating liquid and electric copper plating process thereof
The invention relates to an electric copper plating liquid and an electric copper plating process thereof. The electric copper plating liquid is made with the following components: 20 g / l of copper sulfate pentahydrate, 20 g / L-300 g / L of sulfuric acid, 25 g / L-120 mg / L of chlorine ion, 0.1 mg / L-20 mg / L of a brightening agent, 1 mg / L-2000 mg / L of an inhibitor, and the balance of deionized water; the brightening agent is selected from alkyl thiol sulfonate or two of its derivatives; the inhibitor is selected from one or any of nonionic surfactants. The electric copper plating liquid of the invention enables greatly improved plating current and greatly improved throwing power (TP) of flexible board through-hole plating, TP reaching to higher than 200%, an electric copper plating layer in each hole is flat, and the quality meets various requirements of flexible board.
Owner:GUANGDONG GUANGHUA SCI TECH +1
Structural auto-archiving method for unmanned aerial vehicle inspection images of power transmission line
InactiveCN106547814AImplement automatic archivingExpand recognitionStill image data indexingSpecial data processing applicationsTerra firmaLongitude
The invention discloses a structural auto-archiving method for unmanned aerial vehicle inspection images of a power transmission line. Geographic longitude and latitude coordinates collected by an unmanned aerial vehicle positioning chip when photographing is carried out are added to blocks of an image file EXIF collected by inspecting the power transmission line through an unmanned aerial vehicle; geographic position coordinate information stored in the image file collected by inspecting the power transmission line through the unmanned aerial vehicle is analyzed; the geographic position coordinate information is compared and analyzed with geographic coordinate information of power transmission towers in a production standing book; auto-archiving of the unmanned aerial vehicle inspection images taking towers and line sections as objects is realized; and the firm foundation is laid for further analysis and application of inspection image data.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
Quick topographic map making method based on database driving
InactiveCN102799702AFlexible and personalized mapping serviceFlexible Mapping ServicesSpecial data processing applicationsIntegrated databaseLandform
The invention provides a quick topographic map making method based on database driving. Topographic maps of corresponding plotting scales are quickly made by a built topographic database, and a map making database and the topographic database are subjected to integrated storage, integrated management and synchronous updating. The quick topographic map making method based on database driving comprises the following steps of: (1) preprocessing map making data at a management end, namely building the topographic database, expanding the map making function of the topographic database, deriving map making data, generating framing map making sub databases, and establishing framing map making engineering; (2) generating the map making data at a production end, namely optimizing and adjusting the map making data, editing map making, trimming the contour of a map, edging the data and outputting the map; and (3) putting the topographic map making data into the database at the management end, namely concentratively performing uniform data storage processing on the topographic map making data subjected to the map making production steps such as map making editing, inspection and accepting, and forming the final topography and map-making integrated database.
Owner:NAT GEOMATICS CENT OF CHINA
Device for automatically transferring products to rack
ActiveCN106081623ADoes not affect removal operationsGuaranteed to workCharge manipulationConveyor partsEngineeringManipulator
Owner:EELY ECW TECH
Pig tin series leadless alloy soldering paste and preparation method thereof
InactiveCN101380699ANot easily oxidizedAvoid solder joints that cannot formWelding/cutting media/materialsSoldering mediaRare-earth elementRosin
The invention discloses a tin-zinc series lead-free alloy soldering paste and a manufacturing method thereof. According to the weight percentage, the tin-zinc series lead-free alloy soldering paste consists of 85 to 90 percent of solder alloy powder as well as 10 to 15 percent of scaling powder; wherein, the solder alloy powder consists of 8 to10 percent of zinc, 0.005 to 1.0 percent of rare earth element, 0.001 to 0.1 percent of aluminum as well as tin according to the weight percentage; the total amount of each component is 100 percent; wherein, the scaling powder consists of 15 to 60 percent of modified rosin, 3 to 20 percent of activator, 1 to 10 percent of paste forming agents, 2 to 10 percent of thixotropic agents, 0.1 to 3 percent of azimino-benzene, 0.1 to 8 percent of trichloride isocyanuric acid as well as organic solvent according to the weight percentage; the total amount of each component is 100 percent. The solder alloy powder and the scaling powder are respectively prepared and then mixed uniformly for preparing the tin-zinc series lead-free soldering paste. The lead-free soldering paste has excellent wettability, is hard to be oxidized, has good welding performance and is suitable for an SMT technique flow.
Owner:XIAN UNIV OF TECH
Method for producing high-solid content low-viscosity polymer polylol
The invention relates to a method for preparing polymer polyol with high solid content and low viscosity. The method adopts an intermittent method or a continuous method, and uses a basic polyether polyol as a continuous phase to perform in situ polymerization on a vinyl monomer, polyether polyol, a dispersing agent, and a chain transfer agent under the action of a free radical initiator to produce the polymer polyol with high solid content and low viscosity; or the method uses a certain amount of the polymer polyol with target solid content as a substrate material, mixes the raw materials such as the basic polyether polyol, the free radical initiator, the vinyl monomer, the dispersing agent, and the chain transfer agent evenly according to certain mixture ratio, and adds the mixture to the substrate material continuously to be polymerized so as to obtain the polymer polyol with high solid content and low viscosity. The polymer polyol produced by the method has the advantages of low viscosity, stable dispersion of solid particles, small average particle size of the solid particles, and even particle size. The polymer polyol improves the physical mechanical properties of products applying the polymer polyol, and has wide application range.
Owner:TIANJIN DAGU CHEM CO LTD
Wafer thinning method
ActiveCN102832223AAvoid low utilizationQuality improvementSemiconductor/solid-state device manufacturingRadiation controlled devicesPhysicsImage sensor
The invention provides a wafer thinning method, which is characterized in that selective corrosive liquid is utilized for etching an crystal edge oxidization layer of a device wafer, wherein the etching rate of the selective corrosive liquid on the oxidization layer is larger than the etching rate on the device wafer, so that the height difference of the device wafer and a crystal edge oxidization layer surface of the device wafer by respectively utilizing SPINETCH-D (mixed solution of phosphoric, nitric acid, sulfuric acid and hydrofluoric acid) and HNA (mixed solution of hydrofluoric acid, nitric acid and acetic acid) to perform two etching process on the back surface of the device wafer and the crystal edge oxidization layer of the device wafer can be overcome. Meanwhile, by utilizing the chemical process, the problem by utilizing the physical process (i.e. cutting process) that the utilization rate of the produced device wafer is low and the quality and the reliability of the device wafer are low can be avoided, and the quality of a finally formed image sensor can be improved.
Owner:OMNIVISION TECH (SHANGHAI) CO LTD
Adjustable leveling guide rail and leveling method thereof
InactiveCN101775905AHigh leveling accuracyReduce weightBuilding material handlingClean environmentEngineering
The invention provides an adjustable leveling guide rail. The adjustable leveling guide rail comprises a guide rail beam and a plurality of supporting pieces, wherein each supporting piece comprises a screw rod and a nut; the screw rod is connected with the guide rail beam through the nut; the end part of the screw rod is provided with a fixing block which is hexagonal, tetragonal or triangular; the fixing block is connected with the screw rod in an integral molding mode or the fixing block is detachably connected with the screw rod; and the supporting piece also comprises a positioning piece connected with the screw rod in a fitting mode. The invention also provides a leveling method for realizing the leveling guide rail, namely, the levelness of the leveling guide rail is adjusted by rotating a leveling nut and a positioning nut. In a construction process, instant leveling is realized by clamping the fixing block, fixing the screw rod and adjusting the levelness of the guide rail by screwing the positioning nut and the adjusting nut respectively. The adjustable leveling guide rail has high leveling accuracy, can realize instant leveling in the construction process and has the advantages of low cost, convenient detachment, easy construction, clean environment, green construction and the like.
Owner:HAOHE ENG & CONSTR
Fully automatic wall surface and shed surface spray coating grinding device
InactiveCN104563458AImprove adaptabilityImprove toleranceBuilding constructionsPlane surface grinding machinesSpray coatingFully automatic
The invention discloses a fully automatic wall surface and shed surface spray coating grinding device, which comprises a moving mechanism, a bearing installing platform and an automatic moving arm, and is characterized in that the moving mechanism adopts a manual moving mechanism or an automatic moving mechanism, a fixing plate of the bearing installing platform is arranged on a regulating bearing or a ball head of the moving mechanism, the regulating bearing or the ball head is connected onto a regulating foot driven by an electric cylinder, the electric cylinder is connected onto the bottom plate of the moving mechanism, the bottom plate is moved by the moving mechanism, the automatic moving arm is arranged on the bearing installing platform, and a spray coating device, a grasping mechanism or an anti-collision grinding dust sucking mechanism is arranged on the front end of the automatic moving arm. The fully automatic wall surface and shed surface spray coating grinding device has the advantages that the flexible splicing layout can be realized according to the room area, wall surface and shed surface coating, trowelling and whole surface flattening and putty grinding dust collection work can be simultaneously completed according to different requirements, and the problems of dust pollution and high work intensity of operators can be thoroughly solved.
Owner:董旺建
Wire-drawing mechanism for woven wire
The invention discloses a braided wire take-up mechanism, pertaining to the field of mechanical technology of electric wires and cables process. The braided wire take-up mechanism of the invention comprises a tension adjusting device which is arranged above the side part of a braider, a winding device which is arranged below the side part of the braider and a reciprocating guiding device which is arranged at the side part of the braider. The braided wire take-up mechanism is characterized by also comprising a braided wire defect acquisition device which comprises an acquirer, a signal acquisition device and a pulling rope. The acquirer is correspondingly arranged on a channel of the braided wire while the sign acquisition device is fixed on the tension adjusting device or on the braider. Furthermore, lines and an electric controller of the braider are electrically connected and the pulling rope is connected on the acquirer and the sign acquisition device. The braided wire take-up mechanism of the invention has the advantage of avoiding the quality problem of the braided wire acquired on the winding device.
Owner:CHANGSHU HONGLIN WIRE & CABLE CO LTD
Agglomeration method for iron containing dust slime of iron and steel plants
The invention discloses an agglomeration method for iron containing dust slime of iron and steel plants; according to the method, the iron containing dust slime is shunted independently, is briquetted, is mixed with other iron ore powder, flux and coke powder, and then is sintered on the basis of the traditional technology. The agglomeration method comprises the following detailed steps of: 1), firstly, mixing the iron containing dust slime with composite binder, mixing uniformly, briquetting, so as to obtain dust slime briquette; 2), mixing the dust slime briquette with other iron ore powder, flux and coke powder, pelletizing, so as to obtain sintered mixture material; and 3), distributing the sintered mixture material by adopting the existing sintering method, igniting, sintering, cooling, granulating, finally the finished product of sintered ore is obtained. Compared with the traditional method of directly returning, sintering and mixing the dust slime, by adopting the agglomeration method, the ratio of the iron containing dust slime in the mixture material is greatly improved, and in addition, the sintered product quality index is improved. By adopting the agglomeration method, the problem on large-scale use of the iron containing dust slime of iron and steel plants is effectively solved, and the agglomeration method is beneficial for industrial production.
Owner:CENT SOUTH UNIV
Automatic conveying device for helium leak check of air-conditioning heat exchanger cores and using method
ActiveCN104355111AReduce labor intensityReduce manufacturing costConveyor partsMechanical conveyorsProcess engineeringAir conditioning
An automatic conveying device for helium leak check of air-conditioning heat exchanger cores and a using method belong to the technical field of manufacturing equipment of air-conditioning heat exchanger cores. The automatic conveying device for helium leak check of the air-conditioning heat exchanger cores comprises a transitional conveying line body, a feeding robot and gripping apparatus, a helium detection logistics circulating line body, a helium detection box, a vision imaging device, a discharging robot and gripping apparatus, and the like, wherein the helium detection logistics circulating line body is located in the central position of the automatic conveying device; the inlet of the helium detection box is connected with one section of the helium detection logistics circulating line body; a plurality of outlets of the helium detection box are connected with the other section of the helium detection logistics circulating line body, which is parallel to the helium detection box. According to the automatic conveying device, the air-conditioning heat exchanger cores are conveyed by the vision imaging device, and the robot and gripping apparatuses instead of manual work under the condition of not changing the original technological process of production, a specific operation method is adopted to achieve the purposes of improving the equipment production efficiency, reducing the labor intensity and ensuring the product quality, and the effect is remarkable.
Owner:SHENYANG ZHONGZE INTELLIGENT EQUIP CO LTD
Passive vibration isolation system for dampers of ceilings and sheds
InactiveCN102494071AImprove performanceNo energy input requiredSpringsNon-rotating vibration suppressionSemi activeExternal energy
The invention provides a passive vibration isolation system for dampers of ceilings and sheds and a parameter determination method thereof. By the aid of antiresonance of an 'inertial container-spring-weight' vibrating state converting system, resonance of isolated weights is converted into resonance of inertial containers, resonance of the isolated weights is eliminated, on that basis, damper stride across the inertial containers to be connected with the isolated weights in parallel, and are prevented from striding across the isolated weights to be connected with the initial containers, and the technical problem that dampers of perfect ceilings and perfect sheds need to be connected with inertial reference frames is resolved. In the passive vibration isolation system and the parameter determination method, the dampers do not need to be connected with inertial reference frames, functions of the perfect ceilings and the perfect sheds can be realized to the greatest extent, vibration of the isolated weights is restrained, and technical shortcomings that in an active or semi-active implementation method, external energy input is required, the structure is complex, and instantaneity and reliability are poor are overcome.
Owner:JIANGSU UNIV
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