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125KSi-grade high-strength corrosion-resistant seamless steel tube and production method thereof
ActiveCN119265487AImprove stabilityImprove hardenabilityProcess efficiency improvementChemical compositionPipe
The invention discloses a 125KSi-grade high-strength corrosion-resistant seamless steel tube and a production method thereof, and belongs to the technical field of seamless steel tubes, the 125KSi-grade high-strength corrosion-resistant seamless steel tube comprises the following main chemical components in percentage by weight: 0.20-0.25% of C, 0.17-0.37% of Si, 0.30-0.40% of Mn, 2.00-4.00% of Cr, 0.20-0.30% of W, 0.10-0.20% of V, 0.010-0.030% of Nb, 50-0.70% of Mo, 0.0005-0.0015% of B, 0.020-0.040% of Al, 0.015-0.025% of Ti, 0.0010-0.0020% of Ca and 0.0003-0.0005% of Mg. The seamless steel tube is excellent in mechanical property and good in corrosion resistance, and can be The seamless steel pipe is a 125KSi-grade high-strength corrosion-resistant seamless
Owner:JIANGSU LIANFENG ENERGY EQUIP +1
Reticular head end with variable form and electrode catheter thereof
The invention relates to the field of medical electrophysiology mapping and ablation catheters, in particular to a net-shaped head end with a variable shape and an electrode catheter of the net-shaped head end. The net-shaped head end is formed by combining adjacent electrode arms at a far-end combining section or a near-end combining section, arranging a near-end electrode and a far-end electrode at the combining position of the adjacent electrode arms, and conducting electrode connection on the near-end electrode and the far-end electrode. The near-end electrode and the far-end electrode are distributed in a staggered mode in space, the net-shaped head end generates overall deformation in a stress state, the net-shaped head end can be used in different positions in a shape-adaptive mode by changing the shape of the net-shaped head end structure, and when a flower-shaped structure is formed at the net-shaped head end, the near-end electrode and the far-end electrode can complement each other to form a complete and uniform ablation band. When the net-shaped head end shrinks, the sheath entering size is controlled to the maximum extent; according to the electrode catheter, the net-shaped head end is adopted, the electrode catheter can be adapted to electrophysiological signal collection or ablation at different positions, the integrity of an ablation band can be ensured, the recurrence probability of atrial fibrillation can be reduced, and the hemolysis risk can be reduced.
Owner:SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
Semiconductor device and preparation method thereof, power module, power conversion circuit and vehicle
ActiveCN119486211Achange shapeimprove performancePower conversion systemsDevice materialHemt circuits
The invention discloses a semiconductor device and a preparation method thereof, a power module, a power conversion circuit and a vehicle, and the semiconductor device comprises a semiconductor body; the semiconductor body comprises a first surface and a second surface which are oppositely arranged, and the semiconductor body further comprises a well region and a first region; the first surface is provided with a gate trench, and the gate trench extends into the semiconductor body from the first surface; a gate structure located in the gate trench and on the first surface; the second insulating layer is located on one side, far away from the semiconductor body, of the gate structure, and one side, far away from the semiconductor body, of the second insulating layer protrudes towards one side far away from the semiconductor body; the source electrode is positioned on the first surface; and a drain electrode located on the second surface. The source electrode can be fully filled, and no gap exists between the source electrode and the second insulating layer, so that the performance and the reliability of the semiconductor device are effectively improved.
Owner:YOFC ADVANCED SEMICONDUCTOR (WUHAN) CO LTD
Heat treatment method for improving mechanical property of GH4099 high-temperature alloy
InactiveCN119634752AEliminate anisotropypromote recrystallizationAdditive manufacturing apparatusIncreasing energy efficiencySolution treatmentSuperalloy
The invention discloses a heat treatment method for improving the mechanical property of a GH4099 high-temperature alloy, which comprises the following steps: firstly, printing a GH4099 alloy material into a part by adopting an additive manufacturing method, and then sequentially carrying out annealing treatment, hot isostatic pressing treatment, solution treatment and aging treatment on the part to obtain a final part, annealing treatment, hot isostatic pressing treatment (HIP), solution treatment and aging treatment are sequentially conducted on the GH4099 alloy subjected to 3D printing, the defects and texture problems generated by printing are eliminated through hot isostatic pressing treatment, and then the mechanical property of the GH4099 alloy is further improved through solution treatment and aging treatment.
Owner:CHINA NAT ERZHONG GRP DEYANG WANHANG DIE FORGING CO LTD +1
Flexible bendable LED display screen
ActiveCN119479488ARealize stepless adjustmentchange shapeIdentification meansComputer hardwareLED display
The invention discloses a flexible bendable LED display screen, and relates to the technical field of LED module technologies, the flexible bendable LED display screen comprises a frame assembly, a support assembly and an LED display screen; the frame assembly comprises a first frame and a second frame, and the second frame is rotationally connected with the first frame through a connecting mechanism; the supporting assembly is arranged on one side of the frame assembly, and the first frame and the second frame rotate relatively to change the form of the supporting assembly; the LED display screen is arranged on the side, away from the frame assembly, of the supporting assembly, and the LED display screen can be bent along with the shape change of the supporting assembly. According to the technical scheme provided by the invention, the first frame and the second frame which are rotatably connected are arranged in the frame assembly in the flexible bendable LED display screen, so that the supporting assembly can drive the LED display screen to be bent as required, and the flexible bendable LED display screen can realize stepless adjustment of the LED display screen through the connecting mechanism; therefore, the flexibility of the flexible bendable LED display screen can be adjusted more flexibly.
Owner:SHENZHEN WANYI JIADA TECHNOLOGY CO LTD
Non-oriented silicon steel for motor iron core of air conditioner compressor and preparation method of non-oriented silicon steel
PendingCN119663095Astrong magnetismImprove magnetismProcess efficiency improvementElectric machineMolten steel
The invention discloses non-oriented silicon steel for a motor iron core of an air conditioner compressor and a preparation method of the non-oriented silicon steel. The preparation method comprises the following steps: smelting: molten steel comprises the following chemical components in percentage by weight: 0.75-1.35% of Si, 0.23-0.28% of Al, 0.18-0.45% of Mn, 0.0015-0.0035% of rare earth La, less than or equal to 0.0025% of C, less than or equal to 0.003% of S and the balance of Fe and impurities; continuous casting: controlling the isometric crystal proportion of a continuous casting blank to be greater than or equal to 55%; during hot rolling and heating, the soaking temperature ranges from 1130 DEG C to 1140 DEG C, the heating time ranges from 150 min to 200 min, the outlet temperature of rough rolling is controlled to range from 930 DEG C to 940 DEG C, the final rolling temperature ranges from 835 DEG C to 875 DEG C, and the coiling temperature ranges from 650 DEG C to 680 DEG C; cold continuous rolling; annealing is conducted, the annealing temperature ranges from 880 DEG C to 930 DEG C, and the plate passing speed ranges from 150 m / min to 165 m / min; and cooling, coating and finishing.
Owner:INST OF RES OF IRON & STEEL JIANGSU PROVINCE +2
Passion flower PeGRX13 gene for improving drought resistance and application thereof
ActiveCN119307514AImprove stress resistanceImprove antioxidant capacityFungiMicroorganism based processesBiotechnologyYeast
The invention provides a passion flower PeGRX13 gene. The nucleotide sequence of the passion flower PeGRX13 gene is shown as SEQ ID NO: 1. The passion flower PeGRX13 gene is cloned from passion flowers for the first time, the transcription level of the PeGRX13 gene in the passion flowers is increased under drought stress, it is indicated that the gene can improve the drought resistance and the like of plants, research shows that the gene can remarkably improve the viability of yeast under the drought stress, the oxidation resistance of the plants is improved, and the drought resistance of the plants is improved. Plant leaves are slender, and the length of plant petioles is increased. The invention provides a new candidate gene for research in the aspects of improving the stress resistance of yeast and plants, changing the forms of leaves and petioles of plants and the like.
Owner:SANYA RES INST OF CHINESE ACAD OF TROPICAL AGRI +1
Method for treating copper cobalt oxide ore
PendingCN119491095AEfficient recyclingshort processProcess efficiency improvementHydrometallurgyCopper oxide
The invention discloses a method for treating copper cobalt oxide ore, and belongs to the technical field of non-ferrous metal hydrometallurgy. The method comprises the following steps: carrying out critical leaching on the copper-cobalt oxide ore to obtain a leaching solution and leaching residues, returning the leaching residues to a wastewater and waste residue neutralization process, carrying out a sulfuration sectional copper-cobalt deposition process on the leaching solution to obtain two products of copper sulfide and cobalt sulfide, carrying out targeted adsorption cobalt recovery on the produced sulfurized solution, returning the desorbed solution to a critical leaching process, and carrying out secondary leaching on the desorbed solution. After adsorption, liquid enters a waste water and waste residue neutralization process, produced neutralization residues are piled up, and produced neutralization water is returned to a critical leaching process. The method sequentially comprises the key procedures of critical leaching, vulcanization segmented copper and cobalt deposition, targeted adsorption and waste water and waste residue neutralization. The process adopted by the invention has the advantages of short process flow, high recovery rate, zero discharge of wastewater and the like. Compared with a traditional process, the copper and cobalt leaching rates can reach 90% or above, and the cobalt recovery rate can be increased by 10% or above.
Owner:JINCHUAN NICKEL COBALT RES & DESIGNING INST +1
Calibration part, calibration system and calibration method
ActiveCN119270385Aeasy accessReduce the amount of calculationMaterial analysis using wave/particle radiationGeological measurements
The present disclosure provides a calibration member including: a base body, at least one of a shape and a size of which is variable; at least one calibration block, each of which is connected with the base body; wherein at least one of the shape and the size of the base body is adjusted in advance according to a scanning object of the radiation imaging equipment to be calibrated, so that the calibration piece and the scanning object have basically consistent shapes, and the size of the calibration piece and the size of the scanning object have a preset proportional relation. The invention further provides a calibration system and a calibration method.
Owner:NUCTECH CO LTD +1
Cu-doped Bi2O2CO3 nanosheet catalyst as well as preparation method and application thereof
PendingCN119287438Achange shapeincrease surface areaElectrolytic organic productionElectrodesAcetic acidPtru catalyst
The invention discloses a Cu-doped Bi2O2CO3 nanosheet catalyst as well as a preparation method and application thereof, and belongs to the technical field of electrocatalytic carbon dioxide reduction. The preparation method comprises the following steps: 1) uniformly stirring and mixing water, acetic acid and ammonia water in a reaction container to form a mixed solution I, weighing copper nitrate and bismuth nitrate, adding the weighed copper nitrate and bismuth nitrate into the mixed solution I, and stirring to form a mixed solution II; and 2) transferring the mixed solution II into a reaction kettle, putting the reaction kettle into a drying oven for hydrothermal reaction, and after the hydrothermal reaction, naturally cooling, centrifuging, washing, drying and grinding to obtain Cu-doped Bi2O2CO3 nanosheet catalyst powder. The catalyst is obtained through a one-step hydrothermal method and has excellent selectivity and good stability on reduction of carbon dioxide into formic acid through electro-catalysis, the performance is excellent, the preparation method is simple, the cost of raw materials is low, the yield is high, and large-scale production is easy.
Owner:QINGDAO UNIV
Abrasion-resistant lining plate material for semi-autogenous mill and preparation method of abrasion-resistant lining plate material
PendingCN119553177Ahigh strengthImprove toughnessFoundry mouldsFoundry coresWear particleCorrosion resistant
The invention belongs to the technical field of lining plate materials, and particularly discloses a wear-resistant lining plate material for a semi-autogenous mill and a preparation method, the wear-resistant lining plate material comprises the following components by weight: 0.70-0.76 wt% of C, 0.50-0.75 wt% of Si, 0.50-0.80 wt% of Mn, less than or equal to 0.04 wt% of P, less than or equal to 0.04 wt% of S, 2.00-2.50 wt% of Cr, 0.15-0.30 wt% of Mo, 0.10-0.20 wt% of V, 0.10-0.20 wt% of Cu, less than or equal to 0.03 wt% of Re, and the balance Fe. According to the wear-resistant lining plate material for the semi-autogenous mill and the preparation method, the wear-resistant lining plate material has reasonable strength and toughness matching and certain corrosion resistance, the average hardness value of the wear-resistant lining plate material is 35.2 HRC, the average impact toughness is 137.34 (J / cm < 2 >), the total weight loss of five times of abrasive wear is 0.2703 g, the wear-resistant lining plate material can be used for a long time in ore pulp with large impact load and certain corrosive media, and the service life of the wear-resistant lining plate material is prolonged. The requirements of the lining plate on the use environment are met.
Owner:INNER MONGOLIA ZHONGTIAN HONGYUAN RARE EARTH NEW MATERIAL +1
Rolling-state tough titanium alloy and preparation method thereof
The invention belongs to the technical field of alloys, and particularly relates to a rolled-state tough titanium alloy and a preparation method thereof.The rolled-state tough titanium alloy is obtained by smelting sponge titanium, aluminum particles and a titanium-molybdenum intermediate alloy, then heating the smelted sponge titanium, aluminum particles and the titanium-molybdenum intermediate alloy and then adopting a hot rolling mode. The rolled-state tough titanium alloy obtained through the method is fine in grain and uniform in structure, all components are evenly distributed, the technical defects of as-cast-state Ti-6Al-xMo alloy are overcome, and the mechanical property is effectively improved.
Owner:SHAANXI SCI TECH UNIV
Novel medicine grinding device for traditional Chinese medicine tumors
The utility model discloses a novel medicine grinding device for traditional Chinese medicine tumor, relates to the technical field of medical auxiliary instruments, and realizes efficient grinding of medicine for traditional Chinese medicine tumor, and adopts the technical scheme that the novel medicine grinding device comprises a case body and a knife type grinding barrel, the case body is detachably connected with the knife type grinding barrel, and a workbench is arranged in the middle of the case body; a pneumatic pump is arranged on the top of the workbench, a displayer is arranged on one side of the pneumatic pump, a pressing column is arranged at the output end of the pneumatic pump, a pressing hammer is arranged at one end of the pressing column, a pressing piece switch is arranged on one side of the top of the workbench, a pressing groove is formed in one side of the workbench, and a barrel cover is arranged on the top of the knife type grinding barrel. According to the traditional Chinese medicine tumor medicine grinding device, various technologies such as the pressing hammer, the knife type grinding barrel and the sieve plate are comprehensively applied, so that the traditional Chinese medicine tumor medicine grinding device is suitable for grinding requirements of different types of traditional Chinese medicine tumor medicines, the grinding effect and the working efficiency are improved, and the traditional Chinese medicine tumor medicine grinding device has the beneficial effects of convenience in cleaning, dust prevention, multiple functions and the like.
Owner:THE FIRST AFFILIATED HOSPITAL OF NAVAL MEDICAL UNIVERSITY OF CHINESE PEOPLES LIBERATION ARMY
Land area measuring device for land resource investigation
InactiveCN119437009Aavoid shakingImprove stabilityMechanical area measurementsCleaning using toolsLand resourcesStructural engineering
The invention discloses a land area measuring device for land resource investigation, and particularly relates to the technical field of measuring devices.The land area measuring device comprises a device shell and a fixing cone, universal wheels are fixedly connected to the four corners of the lower end of the device shell, a handle is fixedly connected to the front end of the device shell, and a measuring rope is fixedly connected to the outer surface of the fixing cone; the inner surface and the rear end of the device shell are jointly provided with a retractable fixing assembly, and a cleaning assembly is arranged at the position, behind the retractable fixing assembly, of the inner surface of the device shell. According to the land area measuring device for land resource investigation, the hammering mechanism and the limiting mechanism enable the measuring rope to cling to the ground when the measuring rope measures the land area, and the measuring rope is temporarily fixed on the ground and clings to the ground in the rope releasing measurement process, so that the measuring rope is prevented from being damaged. The measuring rope is effectively prevented from shaking due to wind interference or human factors, the measuring stability of the measuring rope is improved, the measuring accuracy is further improved, and the deviation of a measuring result is reduced.
Owner:HAITIAN DIXIN TECH CO LTD
Preparation method of algae microcapsule and application of pig feed
ActiveCN119385243Aavoid destructionNo biological toxicityAccessory food factorsWorking-up animal fodderProtein solutionSmall intestine
The invention belongs to the technical field of preparation of active substance preparations, and particularly relates to a preparation method of an algae microcapsule. Haematococcus pluvialis is used as a main raw material, astaxanthin is prepared into algae astaxanthin nano solid particles, firstly, haematococcus pluvialis protein is used as a protective layer, then emulsion is adsorbed to prepare self-emulsified algae astaxanthin solid particles, meanwhile, active wrappage of a net-shaped cross-linked structure is utilized, and the self-emulsified algae astaxanthin nano solid particles are prepared into algae astaxanthin nano solid particles. According to the present invention, the haematococcus pluvialis protein and the active wrappage with the network cross-linked structure are subjected to the positive and negative charge effect with the protein solution so as to obtain the haematococcus pluvialis protein dual-wrapped algae microcapsule, and the astaxanthin in the algae microcapsule can be easily released in the small intestine, and the bioavailability can achieve more than 60%. After the astaxanthin is microencapsulated, the influence of environmental factors such as light, heat, oxygen and the like on the stability of the astaxanthin is avoided, the activity can be kept for a long time, and the microencapsulated astaxanthin is suitable for being used in animal feed additives.
Owner:BIXIANG ORIGINAL SUPPLY CHAIN MANAGEMENT CO LTD
Gravel pressing device based on earthwork stone road construction
The utility model discloses a broken stone pressing device based on earthwork stone road construction, which comprises a main body, a fixed block, a threaded hole, a threaded rotating rod, a movable block, a large rotating block, a large fixed ring, a large T-shaped rotating rod, a threaded device and a screw, a vibration block is sleeved on the outer surface of the screw, and a vibration rod is sleeved on the lower surface of the vibration block. A connecting plate is welded to the bottom end of the vibration rod, a small rotating block is welded to the lower surface of the connecting plate, a small fixing ring is welded to the lower surface of the connecting plate, the inner surface of the small fixing ring is sleeved with a small T-shaped rotating rod, and a pressing plate is welded to the bottom end of the small T-shaped rotating rod; by improving the broken stone pressing device based on earthwork stone road construction, the broken stone pressing device has the advantages that the structural design is reasonable, the whole device can be arranged on various vehicle types and mechanical arms through the design of the fixing blocks and the threaded holes, and the broken stone pressing device can be flexibly dispatched and installed, so that the problems and defects of an existing device are effectively solved.
Owner:HUIZHOU JINGYUAN CONSTR ENG CO LTD
Polishing pad, polishing equipment and polishing pad shape adjusting method
PendingCN119427198Achange shapeIncrease productivityAbrasive surface conditioning devicesLapping toolsPolishingHeight difference
The invention relates to a polishing pad, polishing equipment and a shape adjusting method of the polishing pad. The polishing pad comprises a plurality of lifting columns and a plurality of supporting columns, the polishing layer is arranged on the tops of the multiple lifting columns, and the polishing layer comprises first areas in one-to-one correspondence with the multiple lifting columns and second areas adjacent to the first areas; the control structure is used for controlling the lifting columns to ascend and descend so as to change the height difference between the first area and the second area. The polishing pad comprises a plurality of lifting columns capable of moving up and down and a polishing layer, the polishing layer comprises first areas in one-to-one correspondence with the lifting columns and second areas located outside the first areas, and orthographic projections of the lifting columns on the polishing layer are located in the corresponding first areas. The height difference between the first area and the second area can be changed by controlling lifting of the lifting column, so that the shape of the polishing pad is changed, silicon wafers of different types can be machined correspondingly, and the production efficiency is improved.
Owner:XIAN ESWIN MATERIAL TECHNOLOGY CO LTD +1
Infusion protection device for pediatric children
InactiveCN119424818Areduce psychological burdenchange shapeMedical devicesWheelchairs/patient conveyanceAcupunctureMechanical engineering
The invention relates to the technical field of pediatric infusion protection, and particularly discloses a pediatric child infusion protection device which comprises a base and a seat for a child to have a rest, a mounting frame and the seat are sequentially mounted on the top surface of the base, bottle hanging assemblies are symmetrically mounted above the side wall of the mounting frame, and the bottle hanging assemblies are used for hanging infusion bottles. Through grooves III are symmetrically formed in the vertical surface of the seat, mounting frames are mounted in inner cavities of the through grooves III, through grooves IV are formed in the sides, away from each other, of the two mounting frames respectively, a sliding groove is formed in one side of an inner cavity of each mounting frame, and a multifunctional protection assembly is slidably mounted in each sliding groove; according to the pediatric child infusion protection device, the mounting frame, the multifunctional protection assembly, a second mounting groove, a second spring, a first clamping frame, a positioning plate, a first limiting groove and a shielding curtain are arranged in the pediatric child infusion protection device, and when the pediatric child infusion protection device is used, through mutual cooperation of the structures, the sight of a child is isolated during acupuncture; and the psychological burden of children is reduced.
Owner:THE SECOND HOSPITAL AFFILIATED TO WENZHOU MEDICAL COLLEGE
A method for controlling the amount of rare earth added to rare earth low alloy high strength and toughness steel
ActiveCN118854218BHigh precisionImprove joining efficiencyMaterial analysis using wave/particle radiationMaterial strength using tensile/compressive forcesTemperingManganese sulfide
The invention relates to the technical field of rare earth treatment, and in particular to a method for controlling the amount of rare earth added to a rare earth low alloy high-strength and tough steel. The invention obtains an optical image of a composite rare earth inclusion formed by interaction between aluminum oxide and manganese sulfide after adding a rare earth solution through testing. The optical image of the composite rare earth inclusion can accurately determine whether the anti-corrosion performance of the high-strength and tough steel meets the standard, thereby improving the accuracy of the amount of rare earth added to the high-strength and tough steel. The image of the segregated interface of rare earth ions, lanthanum ions and cerium ions can determine whether the wear resistance of the high-strength and tough steel meets the standard, further improving the accuracy of the amount of rare earth added to the high-strength and tough steel. According to the determined amount of rare earth added, an actual rare earth ion penetration quenching and tempering treatment operation is performed on the alloy steel, thereby further improving the accuracy of the amount of rare earth added to the high-strength and tough steel.
Owner:INNER MONGOLIA ZHONGTIAN HONGYUAN RARE EARTH NEW MATERIAL
Movable stop-motion animation metal skeleton
The utility model belongs to the technical field of dolls, and particularly relates to a movable stop motion animation metal skeleton which solves the problems that in the prior art, the use cost is high, and the size cannot be adjusted. A spine, a neck part, two symmetrically arranged shoulder parts, two symmetrically arranged crotch parts, two symmetrically arranged wrist parts, two symmetrically arranged double legs and two symmetrically arranged double feet are distributed and fixedly arranged on the peripheral surface of the framework in a sleeving manner, and a tightening part and a gap part are respectively arranged in the framework; a first auxiliary rod is arranged in the framework, four long auxiliary rods and four short auxiliary rods are arranged on one side of the framework, the framework is made of two iron wires through the arrangement of the framework, the neck and other structures, the iron wires can be additionally arranged on the framework to achieve the effect of changing the shape of the framework, such as the neck and the shoulder, and therefore the shape of the framework can be changed. The device has the advantages of being simple in structure, low in cost, easy to manufacture, high in mobility and high in stability.
Owner:WUXI TAIHU UNIV
Hand-held decorative lamp
ActiveCN222616680USimple structureeasy to useLighting support devicesLight effect designsMechanical engineeringOptics
The utility model discloses a hand-held decorative lamp which comprises a handle and a variable lamp, the handle is connected with the variable lamp through a lifting mechanism, the variable lamp comprises a top plate, a lamp ball and a side plate, the lamp ball is fixedly arranged at the bottom of the top plate, a first sliding groove is formed in the side plate, a limiting block is connected in the first sliding groove in a sliding mode, and the limiting block is connected with the top plate in a sliding mode. The lamp ball is provided with a plurality of limiting grooves, the limiting blocks are clamped into the limiting grooves, one side of each side plate is rotationally connected with an elastic clamping block, a plurality of second sliding grooves are formed in the bottom of the top plate, and the elastic clamping blocks are clamped into the second sliding grooves. The portable decorative lamp is simple in structure and convenient to use, the shape of the variable lamp can be changed by adjusting and changing the side plates on the lamp ball, the brightness and the irradiation range of the variable lamp can be changed, and the variable lamp can be more interesting.
Owner:JIAXING HONGYUE ELECTRONICS CO LTD
Drying device for shoe processing
ActiveCN222264579UImprove drying efficiencyImprove drying qualityShoemaking devicesMechanicsSupport plane
The drying device for shoe processing comprises a supporting frame and a conveying frame, the supporting frame is installed on external equipment, the conveying frame is connected to the supporting frame in a matched mode, and an adjusting mechanism is arranged on the conveying frame. The adjusting mechanism comprises a supporting mechanism, a fixing pipe, a sliding ring, an elastic strip, a threaded sleeve, an unfolding pipe, a hexagonal section, a spray head and a limiting mechanism, the supporting mechanism is installed on the conveying frame, the fixing pipe is connected to the supporting mechanism in a matched mode, and the sliding ring is slidably connected into the fixing pipe; according to the adjusting mechanism, through cooperative use of a fixed pipe, a sliding ring, an elastic strip, a threaded sleeve, an unfolding pipe and a hexagonal section, the drying flow speed is effectively adjusted, so that the drying speed can be accurately adjusted according to different humidity and materials of shoes, and the drying efficiency and the drying quality are improved.
Owner:HUBEI FLEET FOOTWEAR CO LTD
Nb, V, Ti alloyed light weight wear resistant steel and its preparation method and application
This invention provides a lightweight wear-resistant steel alloyed with Nb, V, and Ti, its preparation method, and its applications, belonging to the technical field of lightweight wear-resistant steel. The lightweight wear-resistant steel of this invention, by mass percentage, comprises: Mn 23.0–26.0%, Al 7.5–8.3%, C 1.12–1.25%, Si 0.20–0.25%, Nb 0.05–0.20%, Ti 0.05–0.15%, V 0.05–0.10%, P ≤ 0.03%, S ≤ 0.01%, and the balance Fe. Experimental results show that the lightweight wear-resistant steel provided by this invention has a density ≤ 7.01 g / cm³. 3 Yield strength is 565–654 MPa, tensile strength is 901–985 MPa, elongation is 50.3–58.7%, and KV at -40℃. 2 The impact energy is 97-134J, and the wear resistance is improved by more than 30% with high impact energy.
Owner:YANSHAN UNIV
Preparation method and application of magnetic nanorod
PendingCN119281303Astrong magnetisminhibit growthCatalyst protectionOther chemical processesAnalytePeroxidase
The invention relates to a magnetic nanorod, in particular to a preparation method and application of the magnetic nanorod. The invention develops a simple strategy to synthesize the magnetic nanorod with peroxidase (POD) activity, the magnetic nanorod can be used as a nanoenzyme and can also be used as a magnetic stirring nanorod for a micro-catalytic reaction, and the magnetic nanorod is used in a microfluidic system to realize quantitative detection of an object to be analyzed. The method has the advantages of mild conditions, greenness and higher controllability on the particle size. A dynamic nano-enzyme system is constructed on the basis of the magnetic nanorod to quantitatively detect cysteine. Compared with the static nano-enzyme, the dynamic nano-enzyme has the advantages that the enzyme activity can be maximally three times of the original enzyme activity, and the reaction kinetics is obviously enhanced.
Owner:CHINA PHARM UNIV
Polishing method of optical glass lens and cerium oxide polishing powder
PendingCN119505707Achange shapeImprove polishing yieldOptical surface grinding machinesCerium oxides/hydroxidesCerous chloridePolyethylene glycol
The invention discloses a polishing method of an optical glass lens and cerium oxide polishing powder.The polishing method comprises the working procedure of preparing a cerium oxide polishing solution and the working procedure of polishing the optical glass lens through the cerium oxide polishing solution, and the cerium oxide polishing solution is formed by dispersing the cerium oxide polishing powder in a solvent; the method for preparing the cerium oxide polishing powder comprises the following steps: at 55-65 DEG C, continuously adding a carbonate precipitator into cerium chloride rare earth feed liquid, reacting until the pH value of a system reaches 6.0-6.5 to obtain rare earth carbonate slurry, purifying, adding polyethylene glycol with proper molecular weight, stirring and aging, heating to 90 DEG C or above, and preserving heat; after the heat preservation is finished, carrying out filter pressing, drying, calcining, carrying out water cooling, and carrying out ball milling; according to the method, the cerium oxide polishing solution prepared from the specific cerium oxide polishing powder is used for polishing the optical glass lens, so that the polishing quality is excellent, the polishing efficiency is high, the safety and the environmental protection property are better, and the polishing life is long.
Owner:DEMETER SUZHOU ELECTRONICS ENVIRONMENTAL MATERIALS CO LTD
A creep-resistant die casting rare earth magnesium alloy with high strength and high fluidity, a preparation method and application thereof
The application discloses a creep-resistant die-casting rare earth magnesium alloy with high strength and high fluidity, and a preparation method and application thereof. The application belongs to the field of die-casting magnesium alloys. The magnesium alloy comprises, in percentage by mass, Al: 4.8-7.2%, La: 3.0-4.2%, Sm: 1.2-2.0%, Y: 0.4-1.2%, Mn: 0.1-0.6%, Te: 0.01-0.1%, Bi: 0.01-0.5%, and the balance of Mg and inevitable impurity elements. The application significantly refines the structure of the magnesium alloy by optimizing the alloy composition, changes the composition, distribution and morphology of intermetallic compounds in the alloy, simultaneously generates Al-Te phases stable at high temperatures, improves the mechanical properties and creep resistance of the magnesium alloy, and further improves the die-casting fluidity of the magnesium alloy, so as to meet the requirements of large-scale integrated design automobile parts.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES
Folding fence connecting structure and folding fence
ActiveCN224282185UChange shape flexiblychange shapeFencingChildren furnitureCross connectionMechanical engineering
Owner:DONGGUAN JINWANG CHILDREN PROD CO LTD
Constructed wetland treatment system, method and application
PendingCN121850209AImprove adsorption capacityEasy to settleWater treatment parameter controlWater contaminantsConstructed wetlandMicroorganism
The invention provides a constructed wetland treatment system and method and application, and belongs to the technical field of pollutant treatment. The constructed wetland treatment system comprises a constructed wetland pool, a supporting layer and a matrix functional layer are sequentially arranged in the constructed wetland pool from bottom to top, wetland plants are planted on the matrix functional layer, and the matrix functional layer is a mixture of Manchuino ore and quartz sand. According to the invention, the Manchuo mine is used as a matrix filler of an artificial wetland system, and through the electron supply, adsorption and coprecipitation effects of the Manchuo mine, the form of heavy metals is changed, the adsorption of micro-organic pollutants and the adsorption and precipitation of the heavy metals are promoted, and the removal of the heavy metals and part of the micro-organic pollutants is realized; meanwhile, microorganic micropollutants are degraded through a synergistic effect with microbial anabolism and mediated oxidation-reduction reaction thereof and plant assimilation absorption, so that a multifunctional pollutant removal system for the constructed wetland is constructed, and the utilization rate of the constructed wetland is effectively increased while effluent is ensured to meet the national standard.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2
High-strength and high-toughness ADC12 cast aluminum alloy and preparation method thereof
PendingCN121852778Ahigh melting pointImprove stabilitySuperstructure subunitsUltimate tensile strengthToughness
The invention discloses a high-strength and high-toughness ADC12 cast aluminum alloy and a preparation method thereof, and belongs to the technical field of aluminum alloy preparation. The ADC12 cast aluminum alloy comprises the following chemical components in percentage by weight: 9.6%-12.0% of Si, less than or equal to 1.3% of Fe, 1.5%-2.5% of Cu, less than or equal to 0.5% of Mn, less than or equal to 0.3% of Mg, less than or equal to 0.5% of Ni, less than or equal to 1.0% of Zn, less than or equal to 0.2% of Sn, 0.1%-0.3% of Tb and the balance of aluminum and inevitable impurity elements. According to the ADC12 cast aluminum alloy, the content of a copper element is reduced, and meanwhile, a trace amount of rare earth terbium element is added to refine a structure, so that the strength and the toughness are improved, and the strength reduction caused by the reduction of the copper element is made up. Meanwhile, artificial aging treatment is provided, and the strength is further improved by separating out a secondary strengthening phase, so that the ADC12 material which is low in cost, high in strength and high in toughness is developed, and the high-strength requirement under the extreme condition is met.
Owner:SHAANXI FAST GEAR CO LTD
Outer wall water interception and falling flow prevention construction structure
The utility model relates to the technical field of building construction, and provides an outer wall water interception and falling flow prevention construction structure which comprises a protruding part, a first adhesive tape and a second adhesive tape, and the first adhesive tape is used for fixing the protruding part to the outer wall of a wall body; the second adhesive tape adheres to the tops of the protruding parts, one side of the second adhesive tape in the width direction adheres to the outer wall of the wall, and the extending direction of the second adhesive tape is the same as the extending direction of the protruding parts. According to the outer wall water intercepting and flow falling construction structure, the second adhesive tape can cover the gap between the protruding part and the wall body, the possibility that cement paste flows into an outer wall decoration construction finished product on the lower portion through the gap between the protruding part and the wall body is reduced, and the outer wall water intercepting and flow falling construction structure is simple and convenient to use. After construction is completed, the first adhesive tape and the second adhesive tape are torn off from the outer wall of the wall body, so that disassembly between the protruding part and the wall body is completed, the protruding part can be turned over, the first adhesive tape and the second adhesive tape are low in price, and the effect of reducing the cost is achieved.
Owner:GUANGZHOU JINHUI CONSTR GRP CO LTD