Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

49results about How to "Change the viscosity" patented technology

Walnut antioxidant polypeptide chewing flake and preparation method thereof

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

Swing suppression energy dissipation device

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

Preparation method of surface friction coefficient and viscosity modified iron mine tailing damping material

ActiveCN107162478AMitigate large earthquake responseHigh hardnessPotassium persulfateMass ratio
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

Performance test system for ventricular assist device

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

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

Protection device for intelligent cosmetic stirring device

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

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

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

Traditional Chinese medicine composition for treating cardiovascular and cerebrovascular diseases and preparation method thereof

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

Fixture with protection function for smartphone detection

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

A device for suppressing galloping energy consumption

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

Double-rod variable-orifice active single-control variable-damping magneto-rheological damper

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

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

Novel force feedback device and method based on magnetorheological fluid and binocular camera

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

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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products