46results about How to "Precisely control usage" patented technology

The invention discloses a method to produce nickel zinc ferrite with lower temperature and high intensity and nickel zinc ferrite with high magnetic permeability produced with the method. The main components of raw materials adopted in the method are converted into 47.5-49.5mol percent Fe2O3, 3.6-6.5mol percent CuO and 30-35mol percent ZnO, and the rest is NiO. Apart from the main components, the others are converted into one of the minor components, including.01-0.4wt percent Ti2O5, 0.01-0.5wt percent Bi2O3, 0.01-0.5wt percent V2O5, 0.01-0.5wt percent MoO3, 0.01-0.5wt percent Cr2O3, and 0.01-0.5wt percent Nb2O5. The finished product is obtained through steps of material batching, mixing, pre-heating, crushing, grain-making, molding, and sintering. Minor components are mixed after the main components are preheated. The method can realize as high intensity as 5.2g/cm3 and above to enhance the magnetic permeability at a sintering temperature of 200 DEG C lower than the current technique. The method can also increase magnetic inversion temperature and saturation magnetic sensing intensity.

The invention discloses concrete production equipment which comprises a concrete mixing station and a control system used for controlling the concrete mixing station. The concrete mixing station comprises a material preparation station used for supplying aggregate, a first conveyor used for transmitting aggregate, a powder tank used for storing powder and mixing equipment used for mixing, one endof the first conveyor is arranged below the material preparation station, the other end of the first conveyor is arranged on the mixing equipment, and the powder tank is connected with the mixing equipment. The control system comprises a master control module and a switch module connected with the master control module and used for controlling the concrete mixing station to be opened or closed, and the switch module is connected with the material preparation station, the first conveyor, the powder tank and the mixing equipment. The concrete production equipment has the advantages of being lowin energy consumption, high in yield, accurate in matching and convenient to control.

The invention discloses nucleic acid preserving fluid, a preparation method thereof and a method for applying the nucleic acid preserving fluid, and belongs to the technical field of nucleic acid preservation. The nucleic acid preserving fluid comprises the following components based on 100 mL preserving fluid: 5.8 to 5.95g of trisodium citrate, 19.56 to 20.21g of a biological buffer, 0.173 to 0.192g of ethylenediamine tetraacetic acid disodium, 8.2 to 9.0 ml of an acidity regulator, 28 to 33 [mu]L of a preservative, and the balance of purified water; the pH value of the preserving fluid is 3.5 to 4.0; the buffer comprises at least one of triethanolamine hydrochloride and N,N-di-(2-ethoxyl)-2-aminoethanesulfonic acid; the acidity regulator comprises at least one of glacial acetic acid andpolyacrylic acid. The preserving fluid has the advantage that the tissue structure of nucleic acid is kept stable at normal temperature.

The invention discloses a cosmetic packaging bottle, which belongs to the technical field of packaging bottles and comprises an outer bottle body and a plurality of inner bottle bodies. A piston is arranged in each inner bottle body; a sealing gating disc is connected into the outer bottle body in a sealing and rotating mode; a gating opening is formed in the lower end of the sealing gating disc;a pressing adjusting part is connected into the outer bottle body in a sealing and sliding manner; a switching assembly is fixedly connected into the outer bottle body in a sealed mode; the switchingassembly comprises a ventilation base and a switching base; an outer ventilation seat and an inner ventilation seat are formed at the upper end of the ventilation seat; a one-way air inlet valve and aone-way air outlet valve are arranged at the lower end of the switching base; when the one-way air inlet valve communicates with the outer ventilation seat, the inner bottle bodies extrude liquid; and when the one-way air inlet valve communicates with the gating opening, the inner bottle bodies extract liquid. The cosmetic packaging bottle provided by the invention is provided with the multiple inner bottle bodies, so that various kinds of liquid can be stored at the same time; liquid can be extruded quantitatively according to needs, so that the cosmetic packaging bottle is simple to operateand convenient to use; and after the liquid is used up, the liquid can be conveniently injected, so that the cosmetic packaging bottle can be repeatedly used.

The invention discloses a liquid/liquid-level detection/early-warning system and a liquid/liquid-level detection/early-warning method. The liquid/liquid-level detection/early-warning system is arranged in a liquid transportation device. Inside the liquid transportation device, a liquid steel cylinder for accommodating a liquid tank, a liquid temporary-storage cylinder and a discharge device are connected in sequence via a pipeline. The liquid/liquid-level detection/early-warning system comprises at least one pipeline-inside liquid sensor and at least one steel cylinder-inside liquid level sensor, wherein the pipeline-inside liquid sensor is arranged between the liquid temporary-storage cylinder and the discharge device, and the steel cylinder-inside liquid level sensor is arranged on the lateral wall of the liquid steel cylinder. The steel cylinder-inside liquid level sensor is provided with a detector for detecting whether the liquid level of the liquid tank inside the liquid steel cylinder reaches a detecting position.

The invention provides a method for improving straight shear bearing force of a reinforced concrete member. The method comprises the following steps that firstly, the length and reinforcing layer number of each carbon fiber composite material are determined according to the physical parameters of the reinforced concrete member, and then the carbon fiber composite materials are laid on the surface of the reinforced concrete member in the direction perpendicular to the straight shear face according to the length and the reinforcing layer number. The use number of the carbon fiber composite materials is precisely determined, the use number of the carbon fiber composite materials can be controlled scientifically and reasonably, and the straight shear performance of the reinforced concrete member is improved to the greatest extent with the lowest consumption of the carbon fiber composite materials.

The invention discloses a landscaping device, comprising a pull rod, an outer box and a base, the top of the base is provided with the outer box, the top of the outer box is provided with a battery board mounting seat, the battery board mounting seat is provided with a solar cell panel assembly, a display is arranged at the central portion of the side wall of the outer box, and the pull rod is fixed on the base below the display. The output end of a second motor drives a driving gear on an output shaft to rotate, and because a half axle gear at one end of each of two water pipes is engaged with the driving gear, the water pipes rotate to a horizontal position to enlarge the spray area of a chemical liquid, and a worker can complete chemical liquid spraying of a large range only by pullingthe device to move, also the spraying is even and normal effect of the chemical liquid is guaranteed. At the same time, a second electromagnetic throttle valve is utilized to control the flow rate ofthe chemical liquid to avoid excessive spraying of the chemical liquid, and when the chemical liquid is not required to be sprayed, by controlling the second motor to reverse, the two water pipes areplaced in a vertical direction, and thus the occupied volume is reduced and storage is easy.

The invention discloses an intelligent ultrasonic nebulizer, which comprises a shell and a soft hose, wherein the soft hose is connected to a nebulizing outlet in the shell; by virtue of partition boards, the interior of the shell is divided into a storage area, a nebulizing area, an air supply compartment and a control compartment; a medicine liquid cup is arranged in the storage area; a liquid level sensor is arranged in the medicine liquid cup; an ultrasonic generator, a guided wave compartment, a medicine storage compartment and a nebulizing compartment are arranged in the nebulizing areasequentially from bottom to top; the medicine liquid cup communicates with the medicine storage compartment via a medicine liquid valve; a flow meter is arranged on the medicine liquid valve; a fan isarranged in the air supply compartment; an air outlet of the fan communicates with the nebulizing compartment, and a heater is arranged on the air outlet; a temperature sensor is arranged in the nebulizing compartment; and a controller is arranged in the control compartment. According to the nebulizer provided by the invention, nebulizing temperature, nebulizing amount and surplus can be masteredin real time and can be adjusted.

The invention relates to a camshaft efficient machining intelligent lubrication cooling device. The device comprises a bearing base, a lift driving mechanism, positioning bases, guide slide rails, slide blocks, distance measuring devices, infrared temperature measuring devices, lubricant spraying ports and jet air ports; the upper end surface of the bearing base is connected with the positioning bases through the lift driving mechanism; the two ends of the guide slide rail are connected with the front end surfaces of the two positioning bases; the slide blocks are slidingly connected with theguide slide rails; the distance measuring devices are distributed on the opposite side surfaces of the two slide blocks; and each slide block is uniformly distributed with at least two lubricant spraying ports, at least two jet air ports and one infrared temperature measuring device. An application method of the device comprises three steps of equipment assembly, workpiece positioning and machining operation. On the one hand, the device can effectively meet the demands of different machining equipment and different diameter types of camshaft machining mated operations; and on the other hand, the device can precisely realize efficient cooling lubrication operation for machining operation surfaces, workpiece surfaces and machining cutters.

The invention provides a fiber pretreatment device. The fiber pretreatment device comprises a rack, a conveying frame, a meshed conveying belt, a treating solution container, a treating fluid recoverycontainer for collecting a residual treating fluid and a servo motor, wherein the rack comprises a front rack and a rear rack, multiple cross beams and positioning holes are arranged on the front rack and the rear rack, the upper end of the front rack is a first spraying area and/or the lower side of the rear rack is a second spraying area, the first spraying area and the second spraying area arelocated above and below the meshed conveying belt, a plurality of movable spray heads are uniformly arranged in the first spraying area and the second spraying area and connected with an air compressor and the treating fluid container, and automatic spraying is realized. Compared with the prior art, the device can simply adjust the height of a support, the speed of the conveying belt, the spraying amount and the angle of the spray heads, is simple in structure, low in maintenance cost, stable in operation and high in adaptability and can perform humidification, toughening, weight increase andother modification treatment processes beneficial to improvement of fiber spinning and weaving performance on fiber.

The invention provides an extrusion double coating method. The method comprises the steps of slurry transfer, quantity and width determining through extrusion, current collector unwinding, double extrusion coating, drying, and the like. The method has the beneficial effects that after stirred and filtered, slurry is transferred into a backward and forward extrusion head base by a metering and transfer pump, so that the uniformity of the slurry can be improved and the usage amount of the slurry can be accurately controlled; the coating width and the extrusion coating gaps are set via an extrusion die head, so that the coating width and spacing distances can be accurately controlled; further, a current collector is connected between a backward and forward extrusion head and a front and back coating roll from the discharge end of an unwinding mechanism through double extrusion coating and then the distance between the backward and forward extrusion head and the front and back coating roll is controlled, the front and back of the current collector are coated with the slurry and extrusion coating of the front and back is completed, so that one-time double coating of pole pieces can be achieved, thereby improving the uniformity of the pole piece front and back coating thickness and also reducing the losses of equipment and materials.

The invention provides a lip brick water bag bracket which is simple in structure and good in cooling and insulating effects and can achieve the effects of stably fixing lip bricks and edge bricks. The lip brick water bag bracket comprises a water bag body, wherein a fastening plate is arranged on the side wall of the water bag body; the lip brick is fixed at the upper end of the water bag body by virtue of the fastening plate; the edge brick is arranged on the lip brick; lip brick pressing and adjusting devices are respectively arranged on two sides of the upper end of the water bag body; each lip brick pressing and adjusting device comprises an adjusting rack base; an adjusting rack is arranged on each adjusting rack base; the upper end of the adjusting rack is fixedly connected with a top plate; guide base plates are respectively and transversely arranged on two sides of the top plate; a top pressing plate is arranged at the upper end of each guide base plate; a chute is formed by the top pressing plate, the guide base plate and the top plate; the top pressing plate, the guide base plate and the top plate are fixedly connected with one another by virtue of bolts; the pressing plate penetrates through the chute and can slide in the chute in a matched mode; the front end of the pressing plate is fixedly connected with the edge brick by virtue of a bolt; a positioning hole is formed in the upper end of the top pressing plate; and a lifting ring bolt penetrates through the positioning hole to press the pressing plate.

The invention discloses a plaster wall cloth production method comprising the following steps: spreading fiber cloth on a soft matrix with decorative patterns; spraying water to wet the fiber cloth; evenly spraying gypsum powder; then, spraying water to cause the gypsum powder to be wetted to form plaster slurry; causing the plaster slurry to pass through the fiber cloth to reach the other surface of the fiber cloth by a tool, and pressing the plaster slurry on the soft matrix with decorative patterns; and demolding after the plaster slurry is solidified to form the plaster wall cloth. The invention also discloses a device using the production method, comprising a drum-type coiled material delivery mechanism, a water spraying tube, a hopper, a slide plate, a vibration platform, a flat belt delivery-type pressing mechanism, a compression roller and the like. The production method and device thereof in the invention can automatically finish the technical steps of delivering coiled material, applying plaster and printing and can full-automatically and mechanically produce plaster wall cloth, which improves production efficiency and lowers production cost.

The invention discloses a refrigerant charge determination method of a refrigeration system. The method comprises the following steps that working condition parameters of the refrigeration system, thespeed of refrigerant gas, the speed of refrigerant liquid, the length of a first pipeline and the length of a second pipeline are acquired, wherein the first pipeline is a pipeline through which therefrigerant gas flows from an evaporator to a condenser, and the second pipeline is a pipeline through which the refrigerant liquid flows from the condenser to the evaporator; the mass flow rate of the refrigeration system is acquired according to the working condition parameters of the refrigeration system; the single cycle time of the refrigeration system is acquired according to the speed of the refrigerant gas, the speed of the refrigerant liquid, the length of the first pipeline and the length of the second pipeline; the evaporation amount of the refrigeration system in any one-time cycletime is acquired according to the mass flow rate and the single cycle time; and the refrigerant charge after each cycle is determined based on the evaporation amount. According to the method, the charge can be quickly determined, and the charge of the refrigeration system can be accurately controlled.

The invention relates to a robot for clearance measurement-compensation during composite assembly and a clearance compensation method. The robot comprises four parts; an integrated motion device comprises a guiding rail and a chassis capable of moving along the guiding rail; a clearance measurement device comprises a moving pair formed by sliding rails and sliding blocks, a cantilever and a stepping motor for driving the sliding blocks to move along the sliding rails; the sliding rails are fixed to the chassis; the front end of the cantilever is fixedly connected with the sliding blocks; a clearance measurement head is mounted at the tail end of the cantilever; a clearance filling compensation device comprises a peristaltic pump, a liquid gasket storage box and a hose; and a control deviceis used for receiving the strain value measured by a strain gage and controlling the speed of the integrated motion device. The method includes the following four steps that the clearance measurementdevice is calibrated, liquid gaskets are prepared, the robot is mounted, and clearance measurement and clearance compensation are performed. By the aid of the robot and the clearance compensation method, automation of clearance measurement and clearance filling compensation operations for assembled structures of composites of aircrafts is realized, the labor intensity is reduced, and the assembling efficiency is improved.

The invention relates to a hydrophobic film. The hydrophobic film comprises a reaction cavity, a first evaporation source and a second evaporation source are arranged at the internal upper end of thereaction cavity, the lower end of the reaction cavity is provided with a gap, a conveyor belt is arranged below the reaction cavity, and the conveyor belt is provided with a glass substrate. The hydrophobic film is prepared by a co-deposition method, so the high-quality hydrophobic film can be quickly and efficiently prepared; the uniformity, the performances and the raw material use amount of thefilm can be precisely controlled; and the hydrophobic film also has the advantages of reduction of the labor cost, low expenditure, reasonable design, and realization of large-scale promotion.

The invention belongs to the technical field of industrial waste gas treatment, and particularly provides a flue gas series desulfurization and denitration system and method. Flue gas is purified by sequentially causing flue gas to pass through a desulfurization adsorption tower and a denitration adsorption tower in series; meanwhile, active coke is conveyed to the desulfurization adsorption towerand the denitration adsorption tower independently respectively through an active coke conveying unit, and the active coke after the reaction is conveyed to an analytical tower for independent analysis and recycling. On the one hand, by independently controlling conveying amounts and conveying speeds of the active coke in the desulfurization adsorption tower and the denitration adsorption tower,the desulfurization and denitration efficiency is improved; on the other hand, by precisely controlling the conveying amounts and the conveying speeds of the active coke, the desynchrony of the two inthe use amount of the active coke is achieved, the physical loss of the active coke is reduced, and the running cost is reduced; the heating is not required before and after the flue gas treatment, and the overall energy consumption is low.

The invention provides a compressor convenient for feeding and belongs to the technical field of automobile equipment manufacturing. The adoption of the invention solves the problems of unreasonable design and the like in the prior art. The compressor convenient for feeding is arranged on a bearing table on a forging press, and comprises a die mounting base detachably arranged on the bearing table, a die slot for mounting the die is arranged on one side of the upper compressor head near the forging press on the die mounting base, and a plurality of filler grooves and the like for filling brakepad friction materials are arranged on the die. The compressor convenient for feeding has the advantages that because the die mounting base is provided with the die slot for inserting the die, the die is very convenient to be taken out from the forging press, while forging press, more dies completed for the filling work by an operator first can be achieved, so that the production efficiency is greatly improved.