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49results about How to "Change the viscosity" patented technology
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Walnut antioxidant polypeptide chewing flake and preparation method thereof
InactiveCN103932286AIncrease contentRich varietyFood shapingFood ultrasonic treatmentNutritive valuesUltrasonic assisted
The invention discloses a walnut antioxidant polypeptide chewing flake and a preparation method of the walnut antioxidant polypeptide chewing flake. The walnut antioxidant polypeptide chewing flake is 1.0g+ / -0.05g in weight, the walnut polypeptide powder added to each flake is 0.7g+ / -0.035g, the soybean fructo-oligose is 0.2g+ / -0.01g, and the walnut antioxidant polypeptide chewing flake also comprises 2.0-2.5% of hydroxypropyl methyl cellulose, 3-5% of polyvinylpolypyrrolidone, 1-1.5% of magnesium stearate, and the balance of water. The preparation method comprises the following steps: degreasing walnut powder; soaking; adjusting pH; performing ultrasonic-assisted mixing, centrifuging, removing an oil layer and a lower layer sediment; adjusting the pH of the solution; performing enzymolysis; performing enzyme deactivation; adding soybean polysaccharide; homogenizing; spray drying; mixing the walnut polypeptide powder, the soybean fructo-oligose and the auxiliary materials; preparing soft particles; pelletizing; drying; straightening; tabletting; sterilizing; and packaging into the product. The walnut antioxidant polypeptide chewing flake is stable in preparation process, reliable and optimal in technical index, high in nutritive value, high in utilization rate of protein, and quick to digest and absorb inside a body, and has the functions of having low antigenicity, promoting muscle erythrocyte recovery, helping recovery from fatigue and the like.
Owner:辽宁通正检测有限公司
Flame-retardant high-strength foam concrete and preparation method thereof
InactiveCN108623243AReduce heat of hydrationReduce early shrinkage crackingCeramicwareFire retardantWater resistance
The invention provides flame-retardant high-strength foam concrete and a preparation method thereof. The foam concrete comprises the following components by mass: 40-60 parts of cement, 20-30 parts ofgrade-II fly ash, 15-30 parts of fine sand, 2-6 parts of an inorganic flame retardant, 5-15 parts of silicate, 4-11 parts of an expansion agent, 0.4-0.7 part of a foaming agent, 0.4-1.2 parts of a foam stabilizer, 0.6-1.1 parts of a water reducing agent, 0.3-1.5 parts of an early-strength agent, 0.6-1.2 parts of a water repellent, 0.1-0.2 part of fibers and 25-45 parts of water. The invention provides the flame-retardant high-strength foam concrete and the preparation method thereof; and the prepared foam concrete has high strength, flame retardation performance, water resistance and anti-cracking performance.
Owner:上海天行新型材料有限公司
A laser tuning method and tuning system for tuning fork gyro based on nano-silver paste
ActiveCN106134432BHigh precisionImprove performance indicatorsSpeed measurement using gyroscopic effectsGyroscopes/turn-sensitive devicesMicro nanoGyroscope
The present invention relates to a thick-film laser trimming method and trimming system based on nano-silver paste. The method prepares nano-silver paste suitable for tuning fork gyro characteristics through a new type of formula, and utilizes screen printing thick-film manufacturing technology to pre-process Deposit nano-silver paste masses at the end of the fork arm of the tuning fork, and use laser trimming technology to selectively remove the sintered nano-silver paste at the end of the tuning fork. Efficient and accurate on-line detection of the vibration form and frequency interval of the base, and the fast and accurate adjustment of the mechanical coupling error and frequency of the tuning fork gyroscope. This method combines nano-slurry production technology, micro-machining Combining with mature screen printing technology, the design method is reasonable and feasible, and the purpose of further improving the precision of the tuning fork gyroscope and perfecting the performance index of the gyroscope is achieved.
Owner:BEIJING RES INST OF TELEMETRY
Swing suppression energy dissipation device
ActiveCN110439956AChange the singularityChange limitationsDevices for damping mechanical oscillationsSpringsElectricityEngineering
The invention discloses a swing suppression energy dissipation device. The swing suppression energy dissipation device comprises a connection part and an energy dissipation part. The left and right sides of the energy dissipation part are each provided with an energy dissipation cylinder. The left and right energy dissipation cylinders belong to airtight cylindrical tubes. The energy dissipation cylinders contain magneto-rheological fluid. A magnet exciting coil is coiled on the periphery of each cylindrical tube and connected with a piezoelectric unit. The cylindrical tubes on the two sides are each internally provided with a rolling wheel. A gear is arranged between the two cylindrical tubes. The rolling wheels and the gear are fixed through a connecting shaft and can rotate coaxially. The connection part is composed of a hollow box-type tube in the middle and toothed plates on the left and right sides. Piezoelectric power generation units are arranged at the bottom end of the hollowbox-type tube and in the middle position of the interior of a main body of the energy dissipation part correspondingly. The two ends of each piezoelectric power generation unit are provided with pressure sensors. The box-type tube is internally provided with a mass body. The mass body is connected with the two ends of the box-type tube through springs. The toothed plates of the connection part are engaged with the gear of the energy dissipation part. The periphery of the whole energy dissipation part is totally enclosed.
Owner:SHANDONG UNIV
Epoxy modified maleic anhydride copolymer prepolymer, its resin composition, preparation method and application
ActiveCN103833873AImprove electrical performanceGood impregnation of glass fiber clothSynthetic resin layered productsCircuit susbtrate materialsEpoxyHeat resistance
The invention provides an epoxy modified maleic anhydride copolymer prepolymer with a structural formula shown as formula (I) and a resin composition containing the same. The resin composition using the epoxy modified maleic anhydride copolymer prepolymer with a structural formula shown as formula (I) has good heat resistance and excellent electrical properties, and the viscosity does not rise along with time variation to affect the quality of a semi-cured film. At the same time, the resin composition is suitable for making semi-cured films and copper clad laminates, and can be applied to general or high frequency printed circuit boards.
Owner:SWANCOR JIANGSU NEW MATERIALS CO LTD
Preparation method of surface friction coefficient and viscosity modified iron mine tailing damping material
The invention belongs to the technical field of preparation of damping materials, and discloses a preparation method of a surface friction coefficient and viscosity modified iron mine tailing damping material. The method comprises the following steps: carrying out stepped modification by using vinyltriethoxysilane and styrene; uniformly covering the surface of mine tailing with a layer of vinyl groups by using the vinyltriethoxysilane as a preliminary modifier of the surface of the mine tailing, and controlling the content of the vinyltriethoxysilane to be 1% of the mass of an ethanol and mixed water solution comprising ethanol and a water solution according to a mass ratio of 90:10; and initiating polymerization with potassium persulfate by using the styrene as a secondary modifier to produce mine tailing with the surface being uniformly covered with a layer of polymer in order to regulate the damping performance of particles from the surface friction coefficient and the surface structure. The method changes the component structure of the surface of the mine tailing, increases the surface friction coefficient, changes the viscosity, and makes the damping value of the modified damping material 10% higher than that of common granular damping materials.
Owner:NANCHANG HANGKONG UNIVERSITY
Organic electroluminescent device with hole transmitting regulating and controlling character
InactiveCN101022154AStrong transmission abilityAdjustable transmission capacityElectroluminescent light sourcesSolid-state devicesElectronic transmissionControl character
This invention discloses an organic electroluminescent device with a cavity transmission adjusting performance including a solid substrate, an anode layer and a cathode layer, in which, an electrode layer is placed on the surface of the solid substrate, an organic functional layer is set between the anode and the cathode layers including a cavity transmission layer and a light emission layer capable of emitting driven by extra fields characterizing that: said cavity transmission layer is the doped system of dielectric polymer material and small molecule cavity transmission material, said organic functional layer also includes an electronic transmission layer, a current carrier injection layer and a buffer layer, in which, the doepd system can adjust and control the cavity transmission performance of small molecules by adjusting the dopent ratio of the basic substance of the polymer and imputies of small molecules.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Additive for alcohol base liquid fuel
ActiveCN106957701AChange the viscosityChange lubricityLiquid carbonaceous fuelsFuel additivesCorrosionDodecyl methacrylate
The invention relates to an additive for an alcohol base liquid fuel. The additive is prepared from 4-20 parts of polymethyl methacrylate isooctyl, 6-21 parts of 2,4-dimethyl-6-tert-butyl phenol, 2-5 parts of N,N'-disalicylal-1,2-propanediamine, 6-26 parts of lauryl metbacrylate, 3-21 parts of diethylene glycol monomethyl ether, 10-40 parts of methyl palmitoleate, 3-12 parts of diethylaminoethyl methacrylate, 2-9 parts of zinc dibutyl dithiocarbamate, 5-11 parts of 2-n-octyl-4-isothiazolin-3-one, 8-23 parts of dioctyl phthalate, 7-17 parts of N-phenyl-N-sec-butyl phenylenediamine and 0-7 parts of isopropyl benzoate. The additive is added into methanol in a mass ratio of 7-10% to prepare the alcohol base liquid fuel. On the basis of increasing the heat value of the alcohol base liquid fuel, corrosion on a metal part caused by the fuel can be effectively alleviated, the lubricating property and viscosity of the fuel are increased, and the fuel color and combustion flame color are changed.
Owner:山西甲纯新能源科技有限公司
Performance test system for ventricular assist device
PendingCN114699646AReduced risk of dry runningAvoid mechanical failureBlood pumpsMedical devicesHematological testBiomedical engineering
The invention discloses a ventricular assist device performance test system, which comprises a heart blood circulation simulation system, a ventricular assist flow path system, a data acquisition system, an upper computer and a control system, the backflow chamber is communicated with the heart simulation assembly through an incoming flow pipeline and a backflow pipeline, the backflow chamber is filled with a blood simulation medium, and the heart simulation assembly can beat to enable the blood simulation medium to flow into the heart simulation assembly from the backflow chamber through the incoming flow pipeline and flow back into the backflow chamber through the backflow pipeline; the ventricular auxiliary flow path system is provided with a ventricular auxiliary device, the ventricular auxiliary device is communicated with the heart simulation assembly through an auxiliary inflow pipeline, and the ventricular auxiliary device is communicated with the backflow pipeline through an auxiliary outflow pipeline. The ventricular assist device performance test system completely simulates a loop of a blood circulation system in a heart, and various performance tests are carried out on the ventricular assist device.
Owner:SHANGHAI DONGXIN BIOMEDICAL TECH CO LTD
Dissimilar metal semi-solid friction brazing method based on high-frequency assistance
ActiveCN111098018AImprove overall strengthFacilitates metallurgical bondingNon-electric welding apparatusDissimilar metalEngineering
The invention discloses a dissimilar metal semi-solid friction brazing method based on high-frequency assistance. The method comprises the following steps that 1, a stud to be welded and a workpiece to be welded are prepared, wherein the welding end of the stud to be welded is machined into a taper step shape, a taper thread shape or a taper step thread shape, a preset hole is machined at the surface to be welded of the workpiece to be welded, and a brazing filler metal is placed on the inner wall of the preset hole of the workpiece to be welded; 2, a high-frequency induction coil is adopted to heat the welding end of the stud to be welded to 300-500 DEG C, and heat preservation is carried out for 1-5 min; 3, a friction phase is started, and friction is carried out for 3-8 s at rotation speed with 600-1500 r / min and friction pressure with 10-40 MPa; 4, an upsetting phase is stared, friction is rotatably stopped emergently, the emergency stop time is less than 0.5 s, the upsetting pressure with 15-60 MPa is applied, the upsetting time is 3-10 s, and the displacement of the stud to be welded in the upsetting phase is 1-3 mm; and 5, after upsetting is finished, duration is carried outfor 10-25 s at the pressure of 15-60 MPa, and then air cooling is carried out to room temperature. The dissimilar metal semi-solid friction brazing method can realize high-quality connection of dissimilar metals, has the dual advantages of "metallurgical bonding + mechanical occlusion", and improves the mechanical property and the welding efficiency of a joint.
Owner:CHONGQING UNIV OF TECH
Coarse cereal bread and production process thereof
PendingCN109769886AKeep the tastePreserve the flavorDough treatmentModified nutritive productsFlavorEnzyme
The invention discloses coarse cereal bread and a production process thereof. The coarse cereal bread is prepared from, by weight, 30-50 parts of wheat flour, 50-70 parts of millet, 20-30 parts of buckwheat, 25-35 parts of corn, 15-25 parts of oat, 20-30 parts of soybeans, 8-12 parts of mung beans, 17-22 parts of vegetable oil, 4-6 parts of milk powder, 8-12 parts of eggs, 1.5-4 parts of salt, 10-15 parts of sugar, 5-8 parts of sodium bicarbonate, 3-4 parts of lettuce stems, 4-5 parts of lettuce leaves, 1-2 parts of ginger, 8-10 parts of endive, 4-6 parts of orange peels and 3-5 parts of persimmon leaves. According to a preparation method, by means of an optimized superfine grinding technology and an optimized enzyme technology, nutrient components of coarse cereal can be maintained to thegreatest degree, and the mouthfeel of the coarse cereal is improved through a processing mode of baked products. Meanwhile, the unique flavor of the coarse cereal bread is maintained, and high-quality utilization of the coarse cereal is achieved.
Owner:石家庄市米莎贝尔饮食食品有限公司
Protection device for intelligent cosmetic stirring device
InactiveCN112221370AIncrease frictionAnti-stallRotary stirring mixersTransportation and packagingEngineeringMechanical engineering
The invention relates to a protection device for an intelligent cosmetic stirring device, which relates to the technical field of cosmetics and comprises a stirring rod, two mutually symmetrical piston grooves are formed in the middle of the stirring rod, first springs are fixedly connected to the inner sides of the piston grooves, piston blocks are fixedly connected to the outer sides of the first springs, evenly-distributed through holes are formed in the outer side of the piston block, and the electromagnets are fixedly connected to the middle of the piston block. According to the protection device for the intelligent cosmetic stirring device, through cooperative use of a piston block and a friction ring, when the rotating speed of the stirring rod is too high, the electromagnets are ina power-on state at the moment, and due to the fact that the magnetism of the opposite faces of the two electromagnets is the same, the electromagnets can drive the piston block to move outwards together according to the magnetism repulsion principle; the piston block is in contact with the friction ring, so that the friction force is increased, the rotation of the stirring rod is hindered, the effects of preventing stall and protecting are achieved, and the stirring efficiency and the stirring safety are improved.
Owner:杭州蝶尔淇化妆品有限公司
High-strength alkali-free liquid accelerator and preparation method thereof
PendingCN112456853AIncreased steric hindranceImprove early and late strengthAluminium saltsAluminum sulphate
The invention relates to a high-strength alkali-free liquid accelerator and a preparation method thereof. The high-strength alkali-free liquid accelerator comprises the following raw materials in percentage by mass: 14-30% of aluminum sulfate, 5%-10% of fluorine-containing acid, 5%-9% of aluminum hydroxide, 2%-7% of alcohol amine compounds, 10%-20% of an organic polymer coagulation accelerating component, 0.5%-2% of a dispersing agent, and the balance of water, wherein the sum of the mass percentages of the components is 100%. The invention also comprises a preparation method of the accelerator. The high-strength alkali-free liquid accelerator disclosed by the invention is stable in property and good in accelerating effect; when being used in concrete, the accelerator is short in setting time, high in early strength, high in later strength retention rate and low in injection resilience rate; the accelerator can be widely applied to supporting, leaking stoppage and repair of tunnels, highways, railways, mines and subways.
Owner:湖南加美乐素新材料股份有限公司
Coarse cereal pastry and production process thereof
InactiveCN109769885AChange water holding capacityGreat tasteDough treatmentModified nutritive productsSodium bicarbonateBiotechnology
The invention discloses a coarse cereal pastry and a production process thereof. The coarse cereal pastry is prepared from, by weight, 30-50 parts of wheat flour, 50-70 parts of millet, 20-30 parts ofbuckwheat, 25-35 parts of corn, 15-25 parts of oat, 20-30 parts of soybeans, 8-12 parts of mung beans, 17-22 parts of vegetable oil, 4-6 parts of milk powder, 8-12 parts of eggs, 1.5-4 parts of salt,10-15 parts of sugar, 5-8 parts of sodium bicarbonate, 8-12 parts of pig bones, 7-9 parts of shrimp shells, 3-5 parts of lemon peels, 4-6 parts of orange peels and 3-5 parts of persimmon leaves. According to a preparation method, by means of an optimized superfine grinding technology and an optimized enzyme technology, nutrient components of coarse cereal can be maintained to the greatest degree,and the mouthfeel of the coarse cereal is improved through a processing mode of baked products. Meanwhile, the unique flavor of the coarse cereal pastry is maintained, and high-quality utilization ofthe coarse cereal is achieved.
Owner:石家庄市米莎贝尔饮食食品有限公司
Automotive glass membrane capable of dredging raindrops
The invention discloses an automobile glass membrane capable of dredging raindrops, comprising a glass membrane, wherein a flow guide chamber and a mounting slot are formed in the glass membrane, an isolating layer is arranged in the mounting slot, the isolating layer comprises a hard membrane and a second isolating layer, a soft membrane is arranged in the second isolating layer, the soft membrane is filled with silicon oil, a plurality of lugs are fixedly connected to one side of the second isolating layer, a plurality of holes are formed in the glass membrane, the lugs penetrate through theholes, the flow guide chamber is communicated with a plurality of passages, and the passages penetrate through the isolating membrane and the glass membrane. According to the invention, silicon oil stored in the glass membrane is naturally squeezed out by the acting force of patting of rainwater, and the overflow silicon oil can effectively change the viscosity degree between the rainwater and the glass membrane, so that the rainwater cannot stay on the surface of the glass window for a long time; and a flow guide slot is formed in the glass membrane, to help rainwater to flow out along the path of the flow guide slot, so that the rainwater flow out from the inside.
Owner:刘兴海
Current-changed automatic clutch for automobile
The invention discloses a current-changed automatic clutch for an automobile, comprising a right end cover, a left end cover, a central shaft, driving pieces, driven pieces, a left insulating cover, a right insulating cover, a sleeve and current change liquid, wherein the sleeve sheathed on the driving piece and a No.1 spacer bush is arranged between the right end cover and the left end cover; the No.1 spacer bush is arranged between the adjacent driving pieces; a No.1 insulating piece is arranged on a through hole of the spacer bush of the driving piece; the right end cover, the driving pieces arranged at intervals, the No.1 spacer bush and the left end cover are fixedly connected with one other by bolts; the central shaft and the driven pieces are connected by a spline pair; a No.2 spacer bush is arranged between the adjacent driven pieces; a No.2 insulating piece is arranged at the periphery of the driven piece; and the driving pieces and the driven pieces are arranged at intervals. The central shaft is arranged on the left end cover and the right end cover by the left insulating cover, the right insulating cover, a No.2 bearing and a No.1 bearing, the current change fluid is filled in a cavity formed between the adjacent driving pieces and driven pieces, a sleeve with small diameter of the central shaft is sheathed with a conducting ring, and a connecting plate is fixedly installed on the left end cover.
Owner:JILIN UNIV
Dispensing machine
InactiveCN112705420APromote sheddingReduce wasteLiquid surface applicatorsSpraying apparatusCondensation processEngineering
The invention discloses a dispensing machine, which relates to the technical field of fluid dispensing equipment and comprises a rack, a support frame and a dispensing mechanism, wherein the rack comprises a movable bearing plate, the support frame comprises an air pressurizer, the dispensing mechanism comprises a dispensing head and a needle head, the dispensing head comprises a spray needle, a colloid limiting block and a colloid chamber, and the outer wall of the lower end of the spray needle is provided with a thread; and the bottom of the spray needle is provided with a semicircular groove. By adopting the combination of the connecting block and the second cavity, after dispensing work is finished, due to the principle of thermal expansion and cold contraction, glue liquid generates outward tension on a metal soft plate in the condensation process in the dispensing head, and vibration is generated in the second cavity, so that a gap is generated between the cooled glue liquid and the metal soft plate; and after the glue liquid is solidified, the needle head is pushed upwards from the bottom of the needle head, so that a connecting block applies extrusion force to the solidified glue liquid on the upper layer to accelerate the falling of the glue, namely, the dispensing head can continue to work only by replacing the needle head and the connecting block, and thus, the waste of a dispensing head shell is reduced.
Owner:张振
Printing ink and phosphor slurry composition, printer and plasma display panel using the same, and method of manufacturing the same
InactiveCN1931931APrecise and convenient printing processChange the viscosityCathode ray tubes/electron beam tubesInksPhosphorFluorescence
A printing ink and a phosphor slurry composition, a printer and a plasma display panel using the same, and a method of manufacturing the same are disclosed. The printing ink contains a viscosity modifying agent for changing viscosity of the printing ink when stress is applied to the printing ink. The phosphor composition includes phosphor powder, a dispersing agent, and a binder. The phosphor composition further includes a substance having thixotropy.
Owner:LG ELECTRONICS INC
Traditional Chinese medicine composition for treating cardiovascular and cerebrovascular diseases and preparation method thereof
InactiveCN113117017AImprove utilizationSmall doseMetabolism disorderMammal material medical ingredientsRadix Astragali seu HedysariCerebro vascular disease
The invention discloses a traditional Chinese medicine composition for treating cardiovascular and cerebrovascular diseases. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 20-30 parts of radix salviae miltiorrhizae, 15-25 parts of radix notoginseng, 15-25 parts of peach kernels, 10-20 parts of radix angelicae sinensis, 10-20 parts of flos carthami, 10-20 parts of radix astragali, 10-20 parts of radix paeoniae rubra, 5-15 parts of rhizoma chuanxiong, 5-15 parts of radix codonopsis, 5-15 parts of rhizoma polygonati and 1-10 parts of musk. The preparation method comprises the following steps: (1) weighing the raw materials; (2) respectively crushing and sieving all the raw materials, and then uniformly mixing; (3) drying; and (4) automatically and quantitatively packaging and warehousing. The product has the advantages of being small in dosage, simple and convenient to take, high in dissolution speed, good in effect, capable of being directly absorbed into blood through mucosa, capable of purifying and removing blood vessel garbage, high in availability, good in curative effect, free of gastrointestinal irritation, free of obvious toxic and side effects and the like, and has good effects of activating blood circulation to dissipate stasis, removing blood garbage and smoothing blood vessels in the heart and all over the body.
Owner:睿特环中医药科技发展有限公司 +1
Pneumatic rotary damping device
PendingCN113605801AChange the viscosityChange passing speedBuilding braking devicesWing accessoriesEngineeringPiston
The invention provides a pneumatic rotary damping device. The problem that in the prior art, rotary parts such as doors or windows are not damped is solved. The pneumatic rotary damping device comprises a closed air chamber formed by a shell; a movable piston and grease are arranged in the closed air chamber; a guide rod is arranged in the middle of the piston in a sealing fit mode; the upper end of the guide rod extends out of the closed air chamber; and a grease passing structure for the grease to pass through is formed in the piston. The pneumatic rotary damping device is simple in overall structure and convenient to use, solves the problem that a rotary device has no damping, can achieve the purpose of controlling the rotary damping speed by changing the depth or diameter of the corresponding grease passing structure or the viscosity of the grease, and is suitable for various doors and windows and various occasions needing rotary damping.
Owner:WEIFANG ZHENGXIN PNEUMATIC TECH CO LTD
Fixture with protection function for smartphone detection
InactiveCN112714213AHas a cushioning effectAvoid damageSubstation equipmentDielectric plateMagnetorheological fluid
A fixture with a protection function for smartphone detection relates to the technical field of smartphone manufacturing machinery and comprises a fixing table, a fixing groove is formed in the top of the fixing table, a rubber film is fixedly connected to the top of the fixing table, a first spring is fixedly connected to the inner bottom wall of the fixing table, and a piston block is fixedly connected to the top of the first spring. An electromagnet is fixedly connected to the inner wall of the top of the piston block, a dielectric plate is fixedly connected to the inner wall of the piston block, a positive plate is fixedly connected with the inner side of the left side of the fixing table, and a negative plate is fixedly connected to the inner wall of the right side of the fixing table. According to the fixture with a protection function for smartphone detection, through cooperative use of the rubber film and the electromagnet, when a smartphone is placed on the rubber film, the rubber film can be sunken under the action of gravity of the smartphone, and when a touch screen of the smartphone is detected, magnetorheological fluid is powered on, so that the smartphone has a buffer effect, the smartphone is effectively protected against damage caused by continuous pressing to influence the accurate result of the detection result.
Owner:辽宁省聚汇网络科技有限公司
Clamp capable of clamping machine parts in multiple shapes
The invention discloses a clamp capable of clamping mechanical parts in multiple shapes, and relates to the technical field of mechanical parts. The clamp comprises a clamping block, first springs are fixedly connected to the inner walls of the top and the bottom of the clamping block, a sliding block is fixedly connected to the right side of the first springs, a first dielectric plate is fixedly connected to the middle of the sliding block, a first positive plate is fixedly connected to the inner wall of the clamping block, the inner wall of the clamping block is fixedly connected with a first negative plate symmetrical to the outer side of the first positive plate, the inner wall of the clamping block is fixedly connected with a first resistor, the right side of the clamping block is fixedly connected with a rubber film, and electrorheological fluid is movably connected into the rubber film. According to the clamp capable of clamping the mechanical parts in multiple shapes, through cooperative use of the rubber film and the electrorheological fluid, when the clamp is used, the electrorheological fluid is in a liquid state, when a workpiece is clamped, the rubber film is firstly attached to the shape of the workpiece, then the electrorheological fluid is powered on, the electrorheological fluid is made to be in a solid state, the strength of the clamp is effectively improved, clamping of workpieces in various shapes is achieved, and the practicability of the clamp is improved.
Owner:海宁市宁达机械配件厂
Epoxy-modified maleic anhydride copolymer prepolymer and its resin composition, preparation method and application
ActiveCN103833873BImprove electrical performanceGood impregnation of glass fiber clothSynthetic resin layered productsCircuit susbtrate materialsEpoxyHeat resistance
The invention provides an epoxy modified maleic anhydride copolymer prepolymer with a structural formula shown as formula (I) and a resin composition containing the same. The resin composition using the epoxy modified maleic anhydride copolymer prepolymer with a structural formula shown as formula (I) has good heat resistance and excellent electrical properties, and the viscosity does not rise along with time variation to affect the quality of a semi-cured film. At the same time, the resin composition is suitable for making semi-cured films and copper clad laminates, and can be applied to general or high frequency printed circuit boards.
Owner:SWANCOR JIANGSU NEW MATERIALS CO LTD
A device for suppressing galloping energy consumption
ActiveCN110439956BChange the singularityChange limitationsDevices for damping mechanical oscillationsSpringsGear wheelMagnetorheological fluid
Owner:SHANDONG UNIV
Double-rod variable-orifice active single-control variable-damping magneto-rheological damper
InactiveCN105179571AChange the viscosityReasonable structureSpringsNon-rotating vibration suppressionMaximum diameterEngineering
The invention discloses a double-rod variable-orifice active single-control variable-damping magneto-rheological damper, and belongs to the field of variable-damping structure vibration isolation magnetorheological fluid instruments. The double-rod variable-orifice active single-control variable-damping magneto-rheological damper comprises a working cylinder body module, two sets of end cover modules which are completely the same in structure, a piston module, a working gap and a power source; the two sets of end cover modules are arranged at the two ends of the working cylinder body module respectively, and the piston module is arranged inside the working cylinder body module; the working cylinder body module comprises a rheological fluid cylinder body, an electrifying coil and a coil shielding layer; the diameter of a gradually-changed throttling column is changed linearly along the axis, the diameter of the middle portion of the column is maximum, and the diameters of the two ends of the column are minimum; and the inner diameter of an orifice is equal to the maximum diameter of the gradually-changed throttling column. According to the variable-damping magneto-rheological damper, the structure is compact, the working gap is changed through the gradually-changed throttling column, and the strength of a magnetic field is controlled through the power source.
Owner:CHANGZHOU UNIV
Differential pressure device capable of measuring and adjusting pressure and viscosity in real time and measuring method thereof
ActiveCN110374564ASave costsShorten the timeSurveyFlow propertiesDifferential pressureComputer module
The invention relates to a differential pressure device capable of measuring and adjusting pressure and viscosity in real time and a measuring method thereof, wherein the differential pressure devicecapable of measuring and adjusting the pressure and viscosity in real time comprises an outer barrel and adjustable annular throttling troughs. The adjustable annular throttling troughs are installedon the inner wall of the outer barrel perpendicularly sequentially at equal intervals and are in a split type. A throttling trough single body is in an arc shape, and four throttling trough single bodies are arranged on one peripheral face concentrically in a two-two-adjacent mode to form one adjustable annular throttling trough. A viscosity meter is installed on the surface of an arc-shaped innerplate of the last adjustable annular throttling trough. The viscosity meter is connected with an induction plate through a transmission line. A pressure sensor and a torque sensor are installed on the arc-shaped inner plate of the last adjustable annular throttling trough and are both connected with the induction plate. The induction plate is connected with a DSP control module. Throttling differential pressure is changed by changing the annular throttling troughs of the differential pressure device, pressure of solution is adjusted, and meanwhile viscosity of the solution can also be changed.
Owner:NORTHEAST GASOLINEEUM UNIV
A naturally degradable polymer gel water-based fire extinguishing agent
ActiveCN111603716BMake up for the defects that are difficult to degradePromote degradationFire extinguisherCellulosePolymer science
Owner:北京凌天智能装备集团股份有限公司
Novel force feedback device and method based on magnetorheological fluid and binocular camera
PendingCN111061377AChange the viscosityPrecise Force Feedback EffectInput/output for user-computer interactionGraph readingInformation processingMedicine
The invention provides a novel force feedback device and method based on magnetorheological fluid and a binocular camera. The novel force feedback device is composed of a force feedback information processing module, a magnetic field generating device, the binocular camera and a force feedback sensing device. And the force feedback information processing module is used for generating a force feedback analog signal in real time according to an interaction scene in a virtual reality environment. The magnetic field generating device is used for generating a magnetic field with corresponding direction and intensity according to a force feedback analog signal given by the force feedback information processing module. The binocular camera is used for capturing gesture information and transmitting the gesture information to the force feedback information processing module in real time. The force feedback sensing device has the function of transmitting the force action to a user according to the change of the direction and intensity of a magnetic field. The force feedback sensing device is good in universality and interchangeability, the force feedback sensing device is simple and light indesign structure, and a user can obtain sense of immediacy experience closer to a real scene. Preferably, the structure of the device can be finely adjusted according to a specific task scene, and the device is suitable for various virtual reality scenes.
Owner:苏州晨本智能科技有限公司
A semi-solid friction brazing method for dissimilar metals based on high frequency assistance
ActiveCN111098018BHigh strengthPrevent extrusionNon-electric welding apparatusStud weldingMechanical property
The invention discloses a semi-solid friction brazing method for dissimilar metals based on high-frequency assistance, which includes the following steps: step 1, preparing a stud to be welded and a workpiece to be welded, and the welding end of the stud to be welded is processed into a tapered step shape, taper thread shape or taper step thread shape, the workpiece to be welded is processed with a preset hole, and the solder is placed on the inner wall of the preset hole of the workpiece to be welded. Step 2, using a high frequency induction coil to Heating the welding end of the welding stud to 300-500°C and keeping it warm for 1-5 minutes; step 3, the friction stage, rubbing at a speed of 600-1500r / min and a friction pressure of 10-40MPa for 3-8s; step 4, the upsetting stage, friction rotation Emergency stop, the emergency stop time is less than 0.5s, the upsetting pressure is 15-60MPa, the upsetting time is 3-10s, and the displacement of the stud to be welded during the upsetting stage is 1-3mm. Step 5: After upsetting, hold the load under a pressure of 15-60 MPa for 10-25 seconds, and then air-cool to room temperature. It can realize the high-quality connection of dissimilar metals, has the dual advantages of "metallurgical bonding + mechanical occlusion", and improves the mechanical properties and welding efficiency of the joint.
Owner:CHONGQING UNIV OF TECH
Rhinitis inhibiting and repairing therapeutic apparatus
The invention discloses a rhinitis inhibiting and repairing therapeutic apparatus which comprises a body and a physical therapy device electrically connected with the body, the physical therapy device comprises two physical therapy heads matched with nostrils of a human body, the physical therapy device comprises a light source assembly, and the light source assembly comprises a first light-emitting part and a second light-emitting part which output light sources with different wavelengths and light colors. The light source assembly and the physiotherapy head are arranged in a matched mode, the first light-emitting part outputs red light, the second light-emitting part outputs blue light, the red light can play a role in accelerating blood circulation, promoting wound healing and eliminating inflammation, and the blue light can play a role in changing blood fluidity and viscosity and further rapidly inhibiting inflammation. And a user can flexibly select, the function is powerful, and the use is convenient.
Owner:WUJIANG CITY CLOUD & DRAGON MEDICAL DEVICE
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