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Method for manufacturing a uniform-density vacuum insulated panel with high production efficiency
ActiveCN102788229AEvenly distributedFlat distributionThermal insulationPipe protection by thermal insulationWoven fabricEngineering
A method for manufacturing a uniform-density vacuum insulated panel with a high production efficiency includes steps as follows: (1) a non-woven fabric bag of a specification and a size are made by a bag making machine, and one edge is left unsealed; (2) the non-woven fabric bag is filled with a core material and the unsealed opening is sealed; (3) the core material in the non-woven fabric bag is evenly spread in the non-woven fabric bag by a jolt flattening machine; (4) the core material is sent into a compacter by a conveyor belt, and is compacted; and (5) the core material is loaded into a gas blocking bag, and then the gas blocking bag is subjected to vacuum pumping by vacuum pumping equipment until reaching 0.02 pa, and then is sealed. The method has the advantages as follows: weighing bagging ensures the precision of product specification; the jolt equipment spreads the core material to be more evenly and flatly under the action of gravity; the step of shaping compacting is carried out after the non-woven fabric bag is filled with the core material, so that the condition that the corner formation of the core material is damaged easily when the core material is coated with the non-woven fabric bag after the step of shaping compacting is avoided, and the yield is improved; and the method is suitable for automatic production, and greatly improves the production efficiency.
Owner:QINGDAO CREEK NEW ENVIRONMENTAL PROTECTION MATERIAL
Brillouin optical time domain analyzing and sensing system based on ultra-long annular laser pumping
ActiveCN103364106AFlat distributionImprove consistencyThermometers using physical/chemical changesUsing optical meansFiberRelative intensity noise
The invention discloses a Brillouin optical time domain analyzing and sensing system based on ultra-long annular laser pumping. The Brillouin optical time domain analyzing and sensing system based on the ultra-long annular laser pumping comprises first-order raman pump light (16) with the wavelength of 13 xxnm, a wavelength division multiplexer WDM pair (17) and a sensor fiber (18), wherein the wavelength division multiplexer and the sensor fiber form an ultra-long distance annular laser resonant cavity, the first-order raman pump light is fed back by the annular laser resonant cavity to generate lasing light with the wavelength of 14 XXnm. The lasing light with the wavelength of 14 XXnm performs second-order raman amplification on probe light with wavelength of 15 XXnm and Brillouin pumping. In comparison with a Brillouin sensing system based on linear cavity amplification, sensing signals are distributed more smoothly along the optical fiber, and the consistency of sensing quality in the whole process is remarkably improved; noise transfer of pumping-signal relative strength can be effectively suppressed, and temperature, spatial resolution of strain detection and measurement accuracy can be substantially improved; due to the fact that an extra second-order pump light source does not need to be added, substantial stretching of the sensing distance is obtained with low cost, and the Brillouin optical time domain analyzing and sensing system based on the ultra-long annular laser pumping has certain practicability.
Owner:饶云江
Method and system for improving sensing performance of long-distance Brillouin optical time domain analysis system
InactiveCN102538844AFlat distributionImprove spatial resolutionThermometers using physical/chemical changesUsing optical meansGratingPeak value
The invention discloses a method and system for improving sensing performance of a long-distance Brillouin optical time domain analysis system. On the basis of the existing long-distance Brillouin optical time domain analysis system which uses a first-order Raman amplification technique, a pair of optical fiber gratings with peak reflectivity being larger than 80 percent and consistent central reflection wavelength are fused on the two sides of sensing optical fibers to form a long-distance laser resonant cavity. Laser generated by the laser resonant cavity is used as a second-order Raman pump and a first-order Raman pump to simultaneously take an effect of amplifying sensing signals. Compared with a Brillouin sensing system which is based on the first-order Raman amplification, under the conditions of the same pump power, the method and the system provided by the invention have the advantages that higher grains can be obtained and the pump efficiency is improved; the sensing signals are distributed more smoothly along the optical fibers; when the system is used for long-distance temperature / stress sensing, the spatial resolution, the measurement accuracy and the sensitivity of the monitoring system can be greatly improved; and the sensing performance is obviously improved at a low cost without increasing an additional second-order pump light source.
Owner:WUXI CHENGDIAN OPTICAL FIBER SENSING TECH
Microstructured optical fiber and a device for generating broadband white light
A microstructured optical fiber for generating broadband white light having a core doped with germanium and silica cladding surrounding the core, the cladding including a plurality of holes arranged in the form of a regular mesh, wherein the diameter F of a hole in the cladding, the pitch L between the respective centers of two neighboring holes in the cladding, and the refractive index difference Dn between the germanium-doped fiber core and the silica of the cladding are such that the fiber can generate white light on the fundamental mode over a wavelength band having a width of at least 1000 nm.
Owner:DRAKA COMTEQ BV
Method and system for improving performance of distributed optical fiber sensing system based on phi-OTDR
ActiveCN102506906AFlat distributionImprove spatial resolutionThermometers using physical/chemical changesUsing optical meansImage resolutionMonitoring system
The invention discloses a method and a system introducing the Raman mixing amplification technology in a distributed optical fiber sensing system based on a phi-OTDR (phase-sensitive optical time-domain reflectometer) to improve the sensing distance and the sensing performance of the distributed optical fiber sensing system. The Raman mixing amplification technology is introduced based on the conventional phi-OTDR distributed optical fiber sensing technology, and compared with the conventional phi-OTDR distributed optical fiber system based on the first-order Raman amplification technology, the method and the system can obtain higher gain and improve the pumping efficiency under the same pumping power, the distribution of sensing signals along the optical fibers is flatter, the method and the system can be used for greatly improving the spatial resolution, the measuring accuracy and the sensitivity of a monitoring system when being used for long-distance disturbance monitoring, can remarkably improve the sensing performance with very low cost (without additionally arranging a second-order pumping light source), and have certain practicability.
Owner:饶云江
Fixing device and image forming apparatus
ActiveUS8238770B2Effective controlSolve the lack of precisionElectrographic process apparatusOptimal controlImage formation
A fixing device includes a fixing roller, a pressure roller and a soaking roller. Temperature of the soaking roller, which contacts with the pressure roller, is measured by a temperature measurement section. This makes it possible to precisely estimate the temperature distribution of the fixing roller and the pressure roller including a non-paper feed area of paper sheets. Based on the temperature of the soaking roller, fixing operation is controlled by a fixing operation control section. Thereby, optimal control can be implemented to suppress the temperature rise in the non-paper feed area according to the estimated temperature distribution of the fixing roller and the pressure roller.
Owner:KONICA MINOLTA BUSINESS TECH INC
An image interpolation space completely reversible separable ciphertext domain information hiding algorithm
ActiveCN109800585AMeet safety requirementsImprove securityDigital data protectionImage data processing detailsPlaintextCiphertext
The invention provides an image interpolation space completely reversible separable ciphertext domain information hiding algorithm. The method comprises the following steps of: giving out a conditionrequired by a traversal matrix suitable for image encryption, constructing the traversal matrix by utilizing a chaotic pseudo-random number generator, carrying out a decryption algorithm of the traversal matrix and diffusion and restoration of pixels, generating an encrypted image and realizing secret information hiding in an encrypted image interpolation space; according to the invention, the matrix is traversed;, pixel diffusion and interpolation hiding can realize confidentiality of a carrier image and a secret image. The distribution of a ciphertext image histogram and a secret carrying image histogram is uniform. The image is flat, and a decoder cannot obtain the original image and the secret key information from the histogram; Attacks such as statistical characteristics of the plaintext image are well defended. The security requirement of the carrier image is met, meanwhile. The original image can be restored in a lossless mode, secret information can be extracted, watermark extraction and image decryption are independent, completely separated and exchangeable, and the method has the advantage of being high in security.
Owner:王继军 +1
Residual echo detection method and apparatus
ActiveCN103905656AFlat distributionImprove anti-interference abilitySpeech analysisSupervisory/monitoring/testing arrangementsInterference resistanceFrequency spectrum
The invention relates to the field of voice communication, and discloses a residual echo detection method and apparatus. In the invention, according to a voice spectrum statistical characteristic, within a frequency range with a voice signal-to-noise ratio, an average coherent coefficient of several frequency ranges is utilized to replace a conventional full-frequency range average coherent coefficient as a residual echo detection statistical amount. Since in a frequency range with quite low voice energy, the voice signal-to-noise ratio is quite low, a coherent coefficient is greatly influenced by noise; however, in a frequency range with quite high voice energy, the voice signal-to-noise ratio is quite high, and the coherent coefficient is less influenced by the noise. Therefore, the interference resistance of the full-frequency range average coherent coefficient is lower than the frequency range with the quite high voice energy, so that in actual application, the detection method of a selected frequency range can be provided with a quite high interference resistance capability. At the same time, since the calculation of the full-frequency range average coherent coefficient is unnecessary, the complexity of the detection method is greatly reduced.
Owner:SHANGHAI LINKCHIP SEMICON TECH CO LTD
Three-order Raman amplification technology-based Brillouin optical time domain analysis system
ActiveCN102506915AImproved light flatnessFlat distributionThermometers using physical/chemical changesUsing optical meansErbium dopingData acquisition
The invention discloses a three-order Raman amplification technology-based Brillouin optical time domain analysis system which comprises a laser, a coupler, a first electro-optic modulator, a second electro-optic modulator, a polarization scrambler, a first erbium-doped fiber amplifier (EDFA), a second EDFA, an optical circulator, a tunable filter, a detector, a data acquisition and processing system and a three-order Raman amplification system. According to the three-order Raman amplification technology-based Brillouin optical time domain analysis system, by applying the three-order Raman amplification, so that the scope of a low signal-to-noise ratio is greatly reduced (about 30 km), and the longer-distance high-quality transduction can be achieved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Thin film sealing and cutting packing method based on sealing and cutting packing machine
ActiveCN106240902AReduce leaksUnified productWrapping material feeding apparatusWrapper twisting/gatheringFilm coatingFilm-coated tablet
Owner:ZHEJIANG DINGYE MACHINERY
Solidification method of fiber-wound gas cylinder
The invention discloses a solidification method of a fiber-wound gas cylinder. The method comprises the following steps of: (1) infusing a high-strength fiber material in a resin matrix, then winding the high-strength fiber material around the gas cylinder to form a fiber resin composite material layer on the surface of the gas cylinder; (2) horizontally arranging the well-wound gas cylinder in a first solidifying furnace, keeping the gas cylinder to constantly rotate around a center axis until the resin matrix in the fiber resin composite material layer gelatinates and finishes primary solidification; and (3) immediately transferring the gas cylinder subjected to the primary solidification in a second solidifying furnace and finishing the final solidification of the gas cylinder according to a general solidification measure. The solidification method has high solidification efficiency and is simple and easy to implement; and the solidified product has good appearance quality.
Owner:国营江北机械厂
Method and equipment for manufacturing composite fiber containing continuous glass fiber
The invention relates to a method for manufacturing a composite fiber containing a continuous glass fiber. The composite fiber is formed by mutually mixing offline terylene and an online continuous glass fiber; the glass fiber is drawn on line, and the terylene is finished yarn; a plurality of bundles of terylene with different yarn feed angles are drawn to be converged into sheet shapes after being subjected to tension adjustment; and the converged terylene yarn bundles are separated and then compounded with the glass fiber processed with an impregnating compound. The invention has the advantages of simplified process equipment and improved production smoothness; and meanwhile, the introduction of chemical fiber yarn-feed tension adjustment ensures that better practicability and better effect on the baked yarn clew moulding effect are achieved.
Owner:JUSHI GRP CO
Bonding encapsulation structure and method suitable for radio frequency MEMS and method
PendingCN107814351AFlat distributionIncrease the effective bonding areaTelevision system detailsPiezoelectric/electrostriction/magnetostriction machinesEtchingRadio frequency
The invention relates to a bonding encapsulation structure and method suitable for radio frequency MEMS. The method comprises the steps that organic materials are spin-coated on an encapsulation coverplate and patterned, then Cr and Au are sputtered, and an encapsulation cover plate with the uniformly distributed organic materials and cavities is obtained by using a method that the cavities are etched with a TMHA solution. The cover plate full of the cavities is made from a high-resistance silicon material, and the cavities are obtained through wet etching by using the TMAH solution. By meansof the encapsulation method, the organic materials can be smoothly distributed in a bonding area, the effective bonding area of wafer-level bonding is increased, and then the airtightness, the reliability and other performance of the product obtained after bonding are improved. A low-temperature bonding technology is adopted to conduct low-temperature encapsulation of a radio frequency device, and while good mechanical strength and airtightness are achieved, the requirements for encapsulating the RF MEMS device which is sensitive to temperature are met.
Owner:SUZHOU XIMEI MICRO NANO SYST CO LTD
Method for preparing praseodymium-doped titanium nitride coating on surface of medical titanium alloy
InactiveCN104046951AEvenly distributedFlat distributionSurgeryVacuum evaporation coatingTitanium nitrideRoom temperature
The invention discloses a method for preparing a praseodymium-doped titanium nitride coating on the surface of a medical titanium alloy. The method comprises the following steps: preparing a titanium nitride coating on the surface of the medical titanium alloy by utilizing a magnetron sputtering method; transferring the medical titanium alloy with the titanium nitride coating into a vacuum chamber A of a plasma-immersion-type ion implanter under the condition that a praseodymium target and a sample disk A are respectively arranged at two ends of the inside of the vacuum chamber A; fixing the medical titanium alloy with the titanium nitride coating on the sample disk A; regulating the vacuum degree of the vacuum chamber A under the condition that the praseodymium target is taken as an ion source of a cathode; regulating the rotating speed of the sample disk A and cooling the sample disk A in a water-cooling manner; and then, carrying out praseodymium ion implantation at a room temperature, thereby obtaining the praseodymium-doped titanium nitride coating prepared on the surface of the medical titanium alloy. According to the method disclosed by the invention, the corrosion resistance of the prepared praseodymium-doped titanium nitride coating is obviously superior to that of a common titanium nitride coating; the breeding and the spreading of a large quantity of vascular endothelial cells in the praseodymium-doped titanium nitride coating can be carried out, so that the biological performance of the medical titanium alloy is obviously improved.
Owner:XI AN JIAOTONG UNIV
Bridge deck leveling device based on bridge construction and using method
InactiveCN112411389AControl thicknessAccurate thicknessBridge erection/assemblyRoads maintainenceArchitectural engineeringBridge deck
The invention discloses a bridge deck leveling device based on bridge construction. The device comprises a driving vehicle, a main body bin is arranged at one end of the driving vehicle, a transmission bin and a motor bin are arranged at the two ends of the interior of the main body bin correspondingly, a connecting frame is arranged at the end, away from the driving vehicle, of the main body bin,a mounting frame is mounted at the bottom end of the connecting frame; scrapers are symmetrically mounted at the two sides of one end, close to the main bin, of the bottom of the mounting frame, anda leveling plate is mounted at one end, away from the main bin, of the bottom of the mounting frame. The whole leveling device is driven by the driving vehicle to move, an operator does not need to manually push the device to move, the labor intensity of the operator is greatly reduced, and the leveling device can conveniently level a concrete pavement; and before the concrete pavement is leveledby the device, the concrete pavement can be subjected to preliminary leveling treatment by utilizing the leveling assembly, and the pavement is leveled through the guide roller and the scraper blade,so that the distribution of concrete on the concrete pavement is smoother.
Owner:温州方舵建筑有限公司
ZrB2-SiC eutectic composite ceramic solidification preparation method
The invention discloses a ZrB2-SiC eutectic composite ceramic directional solidification preparation method. A laser beam of a high-energy CO2 laser device serves as a heating source, ZrB2-SiC composite ceramics of eutectic components are rapidly zone-melted by small light spots, and a melting zone is stabilized by accurately controlling laser power and scanning rate, rapidly cooled and continuously solidified to obtain an anisotropic ZrB2-SiC eutectic composite ceramic with a refined structure and phase distribution uniformity. The microstructure of the obtained ZrB2-SiC eutectic composite ceramic is a labyrinth laminated eutectic structure. Compared with a ZrB2-SiC composite ceramic obtained by conventional sintering preparation technology, the ZrB2-SiC eutectic composite ceramic has the advantages that two phases of the structure are firmly combined, the structure is refined, a phase interface is clean, intergranular amorphous phases are avoided, and mechanical property can be further improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Semiconductor storage device
ActiveCN102737708AFlat distributionStable zoom operationTransistorSolid-state devicesDiffusionSemiconductor storage devices
When plural diffusion layers are shared in order to save an area of a semiconductor integrated circuit, parasitic capacities of wirings coupled to those diffusion layers are changed. Nonetheless, a semiconductor layout balancing capacitive loads of paired wirings coupled to the diffusion layers with each other is provided. The diffusion layers coupled to the respective paired wirings are alternately arranged or staggered to balance the respective capacitive loads of the paired wirings with each other.
Owner:RENESAS ELECTRONICS CORP
Automatic boxing flattening machine
The present invention relates to the field of packaging machinery, and especially relates to the automatic packaging technical field. An automatic boxing flattening machine comprises a frame, a conveying assembly, a box clamping assembly and a pressing assembly, and is characterized in that the automatic boxing flattening machine also comprises a horizontal moving mechanism and a flattening device. The pressing assembly comprises a box pressing cylinder and a box pressing cylinder fixing plate. When a packaging box reaches a fixed position, box clamping cylinders clamp the packaging box, the box pressing cylinder presses down, and the horizontal moving mechanism drives the flattening device to move horizontally back and forth after the box pressing cylinder is in place. The automatic boxing flattening machine is mainly used for leveling a packaged product after being boxed, the product is flattened and pressed respectively by two groups of cylinders, the product distribution is flat due to flattening action in the horizontal direction, pressing action in the vertical direction can be more direct and efficient, and therefore flattening efficiency can be improved.
Owner:宏诺威智能装备(昆山)有限公司
Fixing device and image forming apparatus
ActiveUS20090317100A1Effective controlSolve the lack of precisionElectrographic process apparatusImage formationOptimal control
A fixing device includes a fixing roller, a pressure roller and a soaking roller. Temperature of the soaking roller, which contacts with the pressure roller, is measured by a temperature measurement section. This makes it possible to precisely estimate the temperature distribution of the fixing roller and the pressure roller including a non-paper feed area of paper sheets. Based on the temperature of the soaking roller, fixing operation is controlled by a fixing operation control section. Thereby, optimal control can be implemented to suppress the temperature rise in the non-paper feed area according to the estimated temperature distribution of the fixing roller and the pressure roller.
Owner:KONICA MINOLTA BUSINESS TECH INC
Degradable antibacterial magnesium alloy and preparation method thereof
ActiveCN110373588AEnhance biological antibacterial effectImprove antibacterial propertiesTissue regenerationProsthesisOsteoblastDie casting
The invention provides a degradable antibacterial magnesium alloy and a preparation method of the degradable antibacterial magnesium alloy, and relates to the field of metal biomedical materials. Thedegradable antibacterial magnesium alloy comprises main active elements of Ag, Cu, Zn and Sr, and by means of composition optimization design of the magnesium alloy, the components comprise, by mass,1.35-1.65% of Ag, 0.9-1.1% of Cu, 3.6-4.4% of Zn, 0.9-1.1% of Sr, 0.36-0.44% of Ca and the balance Mg and other inevitable impurities. After the magnesium alloy material implant finishes the action, the magnesium alloy material implant can be completely degraded to avoid secondary operation removal, the medical cost and the pain of patients are reduced, the antibacterial property of the implant isimproved, and the magnesium alloy material implant has the functions of promoting osteoblast formation and inhibiting osteoclast bone absorption; the degradable antibacterial magnesium alloy adopts asemi-solid rheological die casting process, the microstructure of the product is uniformly distributed, the internal structure is compact, the defects of pores, segregation and the like are few, andthe requirements for high quality and high precision of implant products can be met.
Owner:NORTHEASTERN UNIV
Corrosion-resistant coating on surface of sintered neodymium-iron-boron magnet and preparation method of surface corrosion-resistant coating
PendingCN111926366AGood binding performanceImprove corrosion resistanceAnodisationPermanent magnet manufactureMicro arc oxidationSurface corrosion
The invention discloses a corrosion-resistant coating on the surface of a sintered neodymium-iron-boron magnet and a preparation method of the corrosion-resistant coating. The preparation method comprises the following steps that a neodymium-iron-boron magnet is cleaned with deionized water after being soaked in an alkaline solution, then the neodymium-iron-boron magnet is ultrasonically cleaned with absolute ethyl alcohol after being soaked in an acidic solution to obtain a pretreated neodymium-iron-boron magnet; then the pretreated neodymium-iron-boron magnet is put into an electrolyte prepared from NaAlO2, Na2SiO3 and deionized water, the neodymium-iron-boron magnet is treated by adopting a micro-arc oxidation process, and ultrasonic cleaning is carried out after treatment to obtain a micro-arc oxidized neodymium-iron-boron magnet; and finally, surface treatment is carried out by adopting a pulse plasma explosion process, and natural airing is carried out to obtain the sintered neodymium-iron-boron magnet with the corrosion-resistant coating on the surface. According to the corrosion-resistant coating prepared through the method, the coating and the base body are tightly wrappedtogether, a surface texture structure is distributed evenly, the coating is flatter and more compact, and the surface is free of defects such as melting pits, so that corrosive liquid is greatly prevented from diffusing to the base body, and the corrosion resistance is greatly improved.
Owner:NANCHANG HANGKONG UNIVERSITY
Efficient long-runner impeller low-specific-speed centrifugal pump
PendingCN113586513AImprove work efficiencyUniform change in flow areaPump componentsPumpsCircular discDrive shaft
The invention discloses an efficient long-runner impeller low-specific-speed centrifugal pump. The efficient long-runner impeller low-specific-speed centrifugal pump comprises a centrifugal impeller, an inducer, a transmission shaft, a centrifugal pump shell and sealing structures; the centrifugal impeller and the inducer are in rigid connection; the centrifugal impeller and the inducer are coaxial with the transmission shaft; the centrifugal impeller comprises a front cover plate and a rear cover plate which are in single-arc transition; and the sealing structures are arranged on the outer side of the front cover plate and the outer side of the rear cover plate correspondingly. According to the efficient long-runner impeller low-specific-speed centrifugal pump, the axial length is properly increased, the blade angle distribution of the centrifugal impeller is smoother, the inlet impact loss of the centrifugal impeller is reduced, the work efficiency of the low-specific-speed centrifugal pump is obviously improved, and the problem that due to the long and narrow runner characteristic of the low-specific-speed centrifugal pump, the impeller disc friction loss and the inlet impact loss of the low-specific-speed centrifugal pump are large, and consequently the efficiency of the low-specific-speed centrifugal pump is low is solved.
Owner:XI AN JIAOTONG UNIV
Microstructured optical fiber and a device for generating broadband white light
InactiveUS8699833B2Flat distributionLaser using scattering effectsCoupling light guidesFiberRefractive index
Owner:DRAKA COMTEQ BV
Device and method for generating clock signals for DC-DC converters
ActiveUS8618850B2Emission reductionSmall sizeDc network circuit arrangementsPulse automatic controlDc dc converterControl signal
An electronic device includes a DC-DC converter for voltage conversion in a slave mode an in a master mode and including a phase locked loop. The phase locked loop comprises a controlled oscillator, a filter having an integration capacitor coupled to a control input of the controlled oscillator, a charge pump, and a phase frequency detector. In the slave mode, the controlled oscillator, the filter, the charge pump and the phase frequency detector are coupled to operate as the phase locked loop. There is a comparator coupled with an input to a control input of the controlled oscillator and with an output to the charge pump. In the master mode, the comparator is configured to control the charge pump in response to a control signal at the control input of the controlled oscillator when the phase frequency detector is switched off so as to perform a modulation of the control signal at the control input of the controlled oscillator by charging and discharging the integration capacitor.
Owner:TEXAS INSTR INC
Silica gel sponge material and preparation method thereof
The invention discloses a silica gel sponge material which comprises polyurethane sponge and a silica gel solution, and a functional auxiliary agent is added into the silica gel solution. The preparation method comprises the following steps: S1, designing the size and thickness of polyurethane sponge, the flowability of a silica gel solution and the proportion of a functional auxiliary agent according to product requirements; s2, according to design requirements, cutting the polyurethane sponge into sheets with corresponding thicknesses by using cutting equipment; s3, preparing a silica gel solution with corresponding flowability according to design requirements, and adding a functional auxiliary agent in a corresponding proportion into the silica gel solution; and S4, adding a silica gel solution on the polyurethane sponge sheet. According to the silica gel sponge material and the preparation method thereof, the silica gel solution is added on the polyurethane sponge, so that the polyurethane sponge has the effect of multiply increasing the tearing strength, meanwhile, the oxidation resistance and the high temperature resistance are improved, and the silica gel can also inhibit the generation of bacteria.
Owner:东莞市汇朋高分子科技有限公司
Ultra-flat glaze for ceramic tile, ceramic tile and manufacturing method of ceramic tile
ActiveCN112429967AAvoid lack of glazePrevent secondary agglomeration and flocculationCeramic tilesOrganic solvent
The invention discloses an ultra-flat glaze for a ceramic tile, the ceramic tile and a manufacturing method of the ceramic tile. The ultra-flat glaze comprises the following components in percentage by mass: 20-40% of an organic solvent, 40%-70% of inorganic ceramic powder and 8%-25% of a polymer organic dispersant. According to the invention, the inorganic ceramic powder is dispersed by the organic solvent, and the organic solvent is used for replacing a water medium in traditional glaze slip, so oily decorative ink can be covered with the super-flat glaze, and glaze shortage on the decorative ink is avoided; by adding the polymer organic dispersant and the organic solvent into the ultra-flat glaze, secondary agglomeration and flocculation of ultrafine powder particles are prevented, theviscosity of glaze slip is reduced, the flowing property of the glaze slip is improved, the solid content of the ultra-flat glaze is increased, a uniformly-dispersed glaze is formed, and a compact andfine glaze layer is formed on the decorative ink; so an ultra-flat glaze layer can be flatly distributed without a polishing process, ripples are avoided, and the superior product rate of finished ceramic tile products is increased.
Owner:DONGGUAN CITY WONDERFUL CERAMICS IND PARK +2
A kind of degradable antibacterial magnesium alloy and preparation method thereof
ActiveCN110373588BEnhance biological antibacterial effectImprove antibacterial propertiesTissue regenerationProsthesisMg alloysMetallurgy
The invention provides a degradable antibacterial magnesium alloy and a preparation method thereof, and relates to the field of metal biomedical materials. The main active elements of the degradable antibacterial magnesium alloy material are Ag, Cu, Zn and Sr. Through the optimized design of magnesium alloy components, The corresponding mass fractions of each component are: Ag: 1.35~1.65%, Cu: 0.9~1.1%, Zn: 3.6~4.4%, Sr: 0.9~1.1%, Ca: 0.36~0.44%, the balance is Mg and others unavoidable impurities. After the magnesium alloy material implant is completed, it can be completely degraded to avoid secondary surgical removal, reducing medical costs and patient pain. At the same time, it improves the antibacterial property of the implant, promotes the formation of osteoblasts and inhibits osteoclasts. The function of cellular bone absorption; the degradable antibacterial magnesium alloy adopts a semi-solid rheological die-casting process. The microstructure of the product is evenly distributed, the internal tissue is dense, and there are few defects such as pores and segregation, which can meet the high quality and high performance of implant products. Accuracy requirements.
Owner:NORTHEASTERN UNIV LIAONING
Cutting grinding sheet and its manufacturing method
A cutting abrasive disk is composed of at least one solidified layer and a layer of abrasive particles embedded in said solidified layer. Its preparing process includes such steps as arranging the abrasive particles on a substrate, forming a basic layer on said substrate for binding said abrasive particles onto substrate, forming a solidifying layer, attaching at least one solidifying layer and one layer of abrasive particles, and removing substrate.
Owner:龙治国
Composite grid manufacturing equipment and manufacturing method and grid thereof
The invention discloses composite grid manufacturing equipment and manufacturing method and a grid thereof. The composite grid manufacturing equipment comprises a yarn running mechanism, a compactingdevice and a die release jacking device. The yarn running mechanism drives yarn to penetrate through a hollow pipeline of a yarn distributing pipe to be arranged in a cross mode in a groove of a die.The yarn distributing pipe has translational degrees of freedom in the x-axis and y-axis directions in the horizontal plane. The compacting device compacts the yarn in the groove. A yarn pressing plate driven by a pneumatic vibrator stretches into the groove in the die to make contact with the yarn in the groove. The bottom of the groove and the lower surface of the die are provided with through holes, a jacking pin upwards penetrates through the through holes, and the composite grid is separated from the die. Component force of rotation of a horizontal screw rod and movement of an inclined block is used for pushing a lifting plate to move upwards, and the jacking pin is lifted. The composite grid manufacturing equipment and manufacturing method are adopted, firstly, the yarn is fast arranged in the groove in the die through the yarn distributing pipe, the compacting device compacts the yarn in the groove, after solidification, the finished product of the composite grid is formed, andthe jacking pin is lifted for die release.
Owner:浙江德毅隆科技股份有限公司
Automatic filament coiling machine with two hexagonal wheels
Disclosed is an automatic filament coiling machine with two hexagonal wheels. Hollow filaments are connected with a filament swaying machine through a transmission wheel and a guide roller in a water tank, the hollow filaments output by the filament swaying machine are connected with two hexagonal filament coiling wheels, a tension sensor is mounted on the transmission wheel and is connected witha full-automatic tension meter through a lead, and magnetic-powder clutches are arranged at the centers of the two hexagonal filament coiling wheels and connected with the full-automatic tension meter and a variable-speed transmission device. The automatic filament coiling machine is capable of feeding back automatically and keeping tension force constant and automatically adjusting and controlling rotation speed of the filament coiling wheels, stable in rotation and uniform in coiling. The hollow filaments are flat in distribution without deformation of inter diameter and outer diameter thereof, the two hexagonal wheels switch alternatively and are flexible and easy in operation, the radius of each filament coiling wheel can be regulated optionally according to the length of film components so as to meet the requirements of different film products, mechanical and automatic filament coiling is realized and the requirements for quick spinning of one automatic filament coiling machine with multiple spinnerets are met.
Owner:TIANBANG NAT ENG RES CENT OF MEMBRANE TECH
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