487results about How to "Accelerated disengagement" patented technology

The invention provides a device for preparing rare earth compound uniform micro powders and a process thereof. The device comprises a static mixing reactor, a uniform crystallization tank with a stirring paddle, a feed liquid storage tank, a precipitating agent storage tank, and a flow rate, temperature and rotation speed control system. The device is used for precipitation synthesis of a single or compound rare earth carbonate, rare earth oxide, rare earth hydroxide, rare earth fluoride, rare earth oxalate or rare earth phosphate as well as compounds of rare earth and other metal. The method comprises the steps of adding a rare earth feed liquid and a precipitating agent feed liquid into the static mixing reactor, completely mixing the feed liquid in the reactor to form slurry with a crystal nucleus; and feeding the slurry into the uniform crystallization tank to obtain an uniform rare earth compound precursor, filtering, washing, drying, and calcinating to obtain rare earth compound micro powders with uniform particle size distribution, wherein the particle size can be adjusted in a range of 0.3-10 mum, and the particle size distribution (D90-D10) / D50 is less than 2. The rare earth compound prepared using the inventive device and process has the advantages of uniform particle size, narrow particle size distribution, good crystallization degree, good stability and less agglomeration. The inventive process is simple and applicable to industrial production.

The invention relates to an environment-friendly ablution used in washing, sterilizing and removing smell to protect clothing, plastic, rubber, office articles, household appliances, auto-inner ornament and toilet in daily life. In order to solve the problems in the prior art, biosurfactant, promoter enzyme, etc. are adopted to be remixed with relative organic reagent. The invention comprises n-acyl glutamate, pineapple enzymic, dodecyl dimethyl benzyl ammonium bromide, fatty alcohol polyoxyethylene ether, ester succinate sulfonate, boric acid diglyceride, linear alkyl benzene sulphonate, sorbitan fatty acid, fatty acid diethanol amide, sunscreen, carbamide, sodium hypochlorite, odor component water. The invention has six functions of 1.laundry washing, decontaminating, sterilizing; 2.plastic and rubber cleaning; 3.office articles and hoursehold appliances renewing; 4.sleeping mat cleaning, decontaminating, sterilizing and acarus killing;5.auto-inner ornament cleaning, sterilizing and smell removing; 4 toilet cleaning, sterilizing, mildew and abnormal smell removing; 6.wall cleaning and stain removing as well as innocuity, no pollution and environment protective.

A mechanism adapted for rapid attachment / detachment of a lighting device to a rail system of a host weapon system. The mechanism includes a body, a fixed rail clamp, and a floating rail clamp that is adjustably attached to the body in an opposing manner to the fixed rail clamp to provide a clamping effect therebetween. The floating rail clamp has a recess in a surface opposite the fixed rail clamp. A holding screw passes through a bore in the fixed rail clamp, and a clamp screw passes through a slot in the floating rail clamp and is threaded into one end of the holding screw. An oppositely-disposed end of the clamp screw protrudes within the recess of the floating rail clamp, and a cam arm has a first end pivotably coupled to the second end of the clamp screw and an oppositely-disposed distal end that protrudes from the recess.

The invention discloses a high-voltage parallel hybrid active power filter device and an iterative learning control method with a forgetting factor. The device is composed of a passive power filter, an active power filter and a coupling transformer. A steplength-variable fuzzy self-adapting harmonic wave detection method is adopted, so as to coordinate the requirements of steady-state performance and convergence rate of the system, and the detected electric network harmonic current is used as the system control target. An iterative learning control algorithm with the forgetting factor is adopted, and an improved Ziegler-Nichols method is utilized to realize the optimization of control parameters and improve the system control performance. The high-voltage parallel hybrid active power filter device has certain advantages in response time and control accuracy, can satisfy the requirements of large-capacity hybrid active filtering system, not only can well control the harmonic wave in the electric network, but also can compensate large-capacity reactive power, and is reliable in systems operation.

The invention provides a single-machine multi-drive and multi-winding motor system, consisting of a parallel multi-winding motor and a driver, wherein a plurality of sets of mutually-independent windings are arranged on a stator in the parallel multi-winding motor in parallel; the driver comprises multi-path parallel driving units, multi-path parallel output units and a main control unit; the multi-path parallel driving units are used for generating motor driving signals corresponding to motor windings in a one-by-one manner; the multi-path parallel output units are used for monitoring the working state of the corresponding windings and transmitting the driving signals generated by the multi-path parallel driving units to the corresponding motor windings; the main control unit is used for acquiring and analyzing working state monitoring signals of all the windings and the multi-path parallel driving units, coordinating and controlling signal output of all the parallel driving units according to the monitoring signals and realizing parallel driving of different windings. In the single-machine multi-drive and multi-winding motor system, the problem that when a certain winding or driving unit in the existing motor system fails, other windings or driving units cannot work completely is overcome, so that the reliability of the motor is improved. The single-machine multi-drive and multi-winding motor system has the advantages of simple structure, high reliability and fast response and the like.

The invention discloses a repairing method capable of reducing total amount of heavy metal in soil. The method comprises the following steps: applying an activating agent containing a surfactant to soil according to the volume ratio of the activating agent to the soil being (1 to 3) to 1 so as to separate the heavy metal from the soil particles; adding a porous material into the soil according tothe volume ratio of the porous material to the soil being between (2 to 1) to (1 to 3), mixing and stirring, so that metal elements are adsorbed to the surface of the porous material; and separating the porous material and the soil through sieving or magnetic separation. By the repairing method, lead, cadmium, arsenic, zinc, cobalt, chromium and the like existing in the soil or sludge can be reduced or removed at one time, and the risk that the heavy metal is released again caused by the change of the soil environment can be avoided.

The invention provides a method and a device for preparing copper powder by intensified electrolysis, and belongs to the technical field of metal electrolysis under special conditions. The method adopts hypergravity fields to intensify the electrolysis of the copper powder. The hepergravity electrolyzer comprises a centrifuge, an electric signal transmission system, an electrolyic bath system and an electrochemical reaction control system. The hypergravity fields are generated in a test cup by utilizing the rotation of a rotor of the centrifuge, and the copper powder electrolysis reaction is carried out in the high gravity fields; an electrolytic reaction signal is transmitted by a conductive ring of the electric signal transmission system; and the electrolytic copper powder reaction is carried out in the electrolytic bath. The method and the device have the advantages of greatly improving the current efficiency of the electrolytic copper powder and lowering the particle size of the copper powder; moreover, the electrolysis under a high current density is realized, and the particle size of the copper powder is reduced.

The invention discloses a grid-connection and off-grid seamless switching control method for an energy storage inverter, and relates to the field of a microgrid or a distributed type power generation system. A control system and an energy storage apparatus are included; when the inverter is in a grid-connection state, a dual-closed-loop feedforward decoupling control system (ADRC control) is adopted; when the inverter is in an off-grid state, a load end voltage is maintained by the inverter, and the dual-closed-loop feedforward decoupling control system (ADRC control) is adopted; and when the inverter is between the grid-connection state and the off-grid state, the switching process is performed in three stages, and automatic seamless switch between the grid-connection state and the off-grid state is performed. The grid-connection and off-grid seamless switching control method has the beneficial effects that the hardware apparatus is simple to design, and the software programming is popular and easy to understand; different ways are adopted for active off-grid switching, passive off-grid switching and grid-connection switching with initial phase difference, so that seamless and non-impact switching is realized; in addition, high-speed data calculation capacity and data handling capacity of a computer are utilized, thereby greatly improving the reliability of the control system.

The invention provides a preparation method for a Ni(OH)2 / Ni / rGO composite hydrogen evolution electrode with a hierarchical structure. The preparation method comprises the following main steps that a foamed nickel base subjected to ultrasound and acidizing treatment serves as an electro-deposition negative electrode firstly, and a Ni / rGO composite hydrogen evolution electrode with a large surface area is prepared through a super-gravity electro-deposition method; then metal Ni particles on the surface of the Ni / rGO electrode react with one of urea, ammonium chloride and ammonium fluoride through a hydrothermal method, the nickel particles serve as a nickel source, and a layer of Ni(OH)2 nanosheets are vertically grown on the surface root position of the nickel particles; and the finally obtained hydrogen evolution electrode has three-stage structures, namely the first-stage structure is foamed nickel base, the second-stage structure is nano nickel particles loaded with graphene sheets, and the third-stage structure is a Ni(OH)2 / Ni / rGO composite plating layer of the Ni(OH)2 nanosheets. According to the preparation method for the Ni(OH)2 / Ni / rGO composite hydrogen evolution electrode with the hierarchical structure, the prepared composite electrode has the unique hierarchical structure, a large specific surface area and an excellent table hydrogen evolution property.

The invention discloses a waste lithium battery positive electrode material and current collector separating method. The method is characterized by comprising the following steps of (1) putting waste positive electrode pieces into a pulverizer and pulverizing the waste positive electrode pieces to the size of 200-300 meshes, then putting the pulverized sheets into a roller of a rolling-and-vibrating mill, keeping the positive electrode material powder distributed evenly along the axis of the roller, drawing the air out to form a vacuum state and then introducing an inert gas to restore to a normal pressure, and rolling and grinding the powder to a micron level; (2) adding a de-fluorination agent into the micron level powder obtained in step (1), putting the micron level powder into a high-temperature furnace and burning the micron-level powder at 200-300 DEG C for 3-5 hours, and removing the de-fluorination agent by sieving to obtain a mixed powder; and(3) putting the mixed powder obtained in step (2) in a gas separator and recovering the positive electrode material. Compared with prior art, the method disclosed by the invention has the characteristics of low calcination temperature, low energy consumption, small equipment investment, simple process and high separating efficiency; and the method can be put into production use directly without follow-up operations, and cost is saved and production efficiency is improved.

A power trigger system for cage-type animal traps includes a catch member, a movable latch and a spring operable between the catch mechanism and the latch feature to exert a force tending the latch feature toward powered disengagement from the cage door. A corresponding method of triggering a cage trap to catch an animal is provided.

The invention discloses a quick implant used for implantable biosensors. The quick implant comprises an implant shell, a sliding seat installed in the implant shell, and a mounting mechanism; an elastic force part which enables the sliding seat to slide in the implant shell, and a control part used for controlling the sliding seat to leave from the original position and slides under the action of the elastic force part; a separation mechanism; an elastic reset device, wherein when a sensor mounting assembly is separated from the sliding seat in the preset position, the elastic reset device applies acting force back to an implantation opening onto the sensor mounting assembly. The quick implant can conveniently, quickly and accurately complete the implantation and the exit of the implantable biosensor. Short time is spent in the whole process, and the pain feeling of a patient in the process of implanting the sensor is greatly reduced, thereby improving the working efficiency.

The invention discloses an automatic electricity generation energy storage device, and belongs to the field of electricity generation devices. The automatic electricity generation energy storage device comprises a shell. A rotating shaft is arranged inside the shell. A cam is installed on the rotating shaft. At least one set of electricity generation unit is arranged at the portion, on the periphery of the cam, of the shell. Each electricity generation unit comprises a frame, wherein a plurality of elastic cantilever slabs are arranged inside the frame in parallel, the center of each elastic cantilever slab is connected with a mass block, piezoelectric patches are stuck to the surface of the elastic cantilever slabs, and the piezoelectric patches are electrically connected with an electric energy storage device body; one end of each mass block is elastically supported into the corresponding frame, the other end of each mass block is correspondingly provided with an ejector rod, the ejector rods are arranged inside guiding pieces in a matched mode, and the guiding pieces are fixedly connected with the shell; according to the positions of the ejector rods, the ejector rods make contact with and press the mass blocks in a clearance mode when the cam rotates. When the cam rotates, the mass blocks can elastically vibrate, the piezoelectric patches generate the automatic electricity generation effect, the vibration mechanical energy is converted into electric energy to be stored, and the automatic electricity generation energy storage device can be used as a power source of a small-power electricity consumption device.

The invention discloses a preparing method of a 3D-structuer Ni / rGO composite hydrogen evolution electrode. The preparing method mainly comprises the steps that graphite oxide is added into deionized water, and ultrasonic treatment is carried out to obtain graphene oxide dispersion liquid; nickel aminosulfonate, nickel chloride and ammonium chloride are added into the graphene oxide dispersion liquid, ultrasonic treatment is carried out to obtain a composite plating solution, a foam nickel substrate subject to ultrasonic and acidification treatment serves as an electro-deposition cathode, a pure nickel pipe serves as an electro-deposition anode, the strength G of a high gravity field is 350 g, the electro-deposition time ranges from 10 min to 100 min, the electro-deposition temperature is 45 DEG C, the electro-deposition current density is 3 A / dm<2>, and a composite coating obtained through preparing is washed with deionized water to be neutral and is dried; and the prepared Ni / rGO composite electrode has the considerable specific surface area, a uniform and stable coating structure and the excellent hydrogen evolution performance. When the current density is 100.0 mA / cm<2>, the hydrogen evolution reaction overpotential is reduced to 190 mV from 240 mV obtained through conventional electro-deposition preparing.

The invention relates to a preparation method of nano-graphite carbon powder. The method comprises the steps of: (1) preparing expansible graphite by a chemical oxidation intercalation process; (2) preparing expanded graphite by a microwave process; (3) pressing the expanded graphite into a expanded graphite sheet, putting it into a microporous filter membrane sieving assembly, conducting pressing and sealing, then placing the assembly at the anode and cathode of an electrolytic bath, taking a chlorate solution as an electrolyte solution, carrying out ultrasonic electrolysis at a temperature below 60DEG C, controlling the electrolytic current at 5-18A / cm<2>, the voltage at 6-20V, the ultrasonic oscillation power at 200-600W, and the frequency at 20-40kHz, inverting the anode and the cathode at an interval of 8-15min, completing electrolysis when the concentration of sol in the electrolytic bath is 2-5%, thus obtaining nano-graphite carbon sol; and (4) adding ammonium sulphate into the nano-graphite carbon sol till the mass concentration of ammonium sulfate reaches 5-8%, stirring them uniformly, then performing freeze drying, thus obtaining the nano-graphite carbon powder. The method has the advantages of mild reaction condition and high speed, thus being suitable for industrialized mass production.

The invention discloses a brake caliper assembly of a normally open type wind driven generator main shaft system, comprising a first half part, a second half part and an inner brake block resetting mechanism which are correspondingly arranged, wherein, the inner brake block resetting mechanism comprises a return spring installation rod and an inner brake block return spring sheathed on the excircle of the return spring installation rod; the return spring installation rod and a piston are parallel and pass through the first part in the mode of reciprocating sliding lengthways; one end of the return spring installation rod is fixedly connected with the inner brake block lengthways; one end of the inner brake block return spring outwards supports the return spring installation rod, and the other end inwards supports the first half part; when the brake assembly enters a non-working state (the hydraulic cylinder releases pressure), the brake block can effectively and quickly separate from the brake disc by the brake block resetting mechanism, which reduces abnormal abrasion between the brake block and the brake disc so as to improve the service life of the brake block and the brake discand reduce maintenance cost.

The invention discloses a yarn variable speed winding mechanism, and belongs to the field of textile machining mechanical equipment. A yarn guide mechanism and a rolling mechanism are sequentially arranged on a conveying support in the horizontal direction, yarn is sequentially connected to a yarn inlet rotating roller, a yarn storage rotating roller, a yarn guide rotating roller and a lifting rotating roller in a wound manner, a yarn compressing mechanism is vertically arranged on at the position, on the upper side of the yarn inlet rotating roller, of the conveying support, a rolling motor is in transmission connection with an output gear, a rotating crank is arranged on one side of a rolling gear in the radial direction of the rolling gear, a crank sliding block of the outer end of therotating crank is in rotatable connection to the end of one side of the rotating crank, a rolling rotating shaft is horizontally and rotatably connected to the upper side of a rolling support, a rotating rocker arm is fixedly arranged on one side of the rolling rotating shaft in the radial direction of the rolling rotating shaft, and the crank sliding block is arranged in a rolling guide groove inthe rotating rocker arm in a sliding manner. The yarn variable speed winding mechanism is reasonable in structural design, yarn can be continuously rolled efficiently and compactly, the yarn conveying and rolling automation degree is improved, and the production use needs are met.

The invention belongs to the water processing technology field, concretely provides a device and a technology for processing degradation-resistant waste water through a hypergravity multistage sacrificial anode electro-Fenton method, and solves the problem of mass transfer limitation in processing degradation-resistant waste water through a sacrificial anode electro-Fenton method. The device comprises a plurality of corrugated cylindrical anodes and anode connection disks and a plurality of corrugated cylindrical cathodes and cathode connection disks. The corrugated cylindrical cathodes and the cathode connection disks are stationary relative to a shell. The centers of the anode connection disks are connected with a rotating shaft. In the technology, the rotary corrugated cylindrical anodes and anode connection disks, the stationary corrugated cylindrical cathodes and cathode connection disks and a H2O2 solution form a hypergravity multistage sacrificial anode electro-Fenton reaction system. The device and the technology can reinforce the mass transfer process of the electro-Fenton reaction. The electrode area utilization rate, the oxygen utilization rate, the H2O2 production rate and the processing efficiency are all raised. The device has advantages of small size, low load and low energy consumption, and is suitable for continuous operation and scale processing.

The invention relates to a preparation method of hexachlorobutadiene. Under the existence of a polar solvent, I-CF2-CF2-CF2-CF2-I and a Grignard reagent synthetized by metals of Mg, Zn or Li and the like and aromatic organic compounds react in a rectifying column in manner of reaction distillation, wherein the reaction temperature is the boiling temperature of the corresponding solvent under the reaction condition, and the reaction is carried out in vacuum, or the reaction is carried out at ordinary pressure, and meanwhile, nitrogen purging is utilized in the reaction process. In the invention, the reaction is carried out in manner of reaction distillation; in the reaction process, the maximal steam quantity of steam in a reaction area can be ensured, and meanwhile, under the assistance of the vacuum or nitrogen purging, reaction products are rapidly separated from the solvent, thereby reducing the occurrence of side reaction and effectively increasing the yield and selectivity of the reaction, wherein the highest reaction yield can reach 97.6 percent, and the selectivity can reach 97.78 percent. Meanwhile, after the reaction is ended, the solvent can be recovered in the same device, thereby reducing the equipment investments and reducing the operating steps.

The invention relates to a toning lotion containing traditional Chinese medicine active ingredients and yeast. The toning lotion is prepared by mixing the following raw materials in parts by weight: 0.01-0.03% of algae extractive, 0.02-0.03% of chondrus crispus extractive, 0.1-0.2% of saccharomycetes fermentation product, 0.8-1.5% of yeast extractive, 0.01-0.05% of radix astragali extractive, 0.008-0.015% of radix saposhnikoviae extractive, 0.003-0.008% of rhizoma gastrodiae extractive, 0.1-0.2% of dendrobium stem extractive, 0.05-0.1% of Aloe vera leaf extractive, 0.05-0.1% of radix sophoraeflavescentis extractive, 0.03-0.05% of barbary wolfberry fruit extractive, 0.02-0.04% of purple coneflower extractive, 0.01-0.05% of sodium hyaluronate, 3-8% of butanediol, 0.5-1.5% of auxiliary material and the balance of water, wherein the auxiliary material is prepared from preservative, chelating agent, emulgator and essence. The toning lotion has the advantages of comprehensive function and moderate material selection, can effectively improve skin type, and multiple effects on resisting ageing multidirectionally, resisting pollution, resisting allergy, relieving, moisturizing, nourishingskin and the like can be realized.

The invention discloses a linear impact device, including a power system, an impact anvil, an impart plunger, a cylinder of straight tube shape for holding the impact plunger, a promotion and detachment mechanism connected with the power system and the impact plunger and a power accumulator for accumulating power by compressing air or by compressing elastic elements. The power accumulator and the impact anvil are respectively arranged at the two ends of the cylinder. In the time of impact return, the power system provides power for the promotion and detachment mechanism to drive the impact plunger to move towards the direction of the power accumulator, the impact plunger then compresses the air the elastic elements of the power accumulator to accumulate power, and in the time of impact stroke, the promotion and detachment mechanism disengages from the impact plunger. The invention applies work to the impact plunger when the impact plunger is in the time of impact return, power is accumulated, the accumulated power is transmitted to the impact plunge when the impact plunge is in the time of impact stroke facilitating the impact plunger to impact the impact anvil, thereby the process of doing work is stable and safe, the impact power is large, and the damage on the power system and various driving parts is small.

The invention discloses zinc plating liquid used for forming a thick zinc coating as well as a preparation method and application. 1 L of zinc plating liquid used for forming the thick zinc coating comprises the following ingredients: 60-100 g of zinc chloride, 180-220 g of potassium chloride, 20-35 g of boric acid, 10-20 g of a combined brightener, 0.2-1.2 g of a softening agent, 1-20 mL of an organic solvent and the balance of water. The preparation method comprises the followings steps: dissolving zinc chloride, potassium chloride, boric acid, the combined brightener and the softening agent with a small amount of water, adding the organic solvent, uniformly mixing, and diluting with water so as to form the zinc plating liquid used for forming the thick zinc coating. When the zinc plating liquid used for forming the thick zinc coating is electroplated for 15-120 min under the current density of 1-15 A / dm<2>, the zinc coating with the thickness of 34-100 [mu]m can be obtained on the surface of a metallic matrix, and is compact, uniform, bright and crack-free.

The invention discloses an offshore transfer trestle with a wave compensation function and a working method thereof. The offshore transfer trestle comprises a heaving mechanism, a trestle system and an active wave compensation control system. According to the invention, the disturbance to the transfer trestle caused by the swaying motion of the two ships can be compensated, even if a freeboard difference exists between the host ship and the target ship, the safe angle between the trestle body and the horizontal plane can still be kept unchanged in the personnel transfer process of the transfer trestle, and the safety and comfort of personnel transfer between the two ships on the sea are improved. After lap joint of the transfer trestle is completed, the front end of the trestle body is fixedly connected with a transfer point, and in the personnel transfer process, the safe angle between the trestle body and the horizontal plane is kept unchanged only by controlling the heaving mechanism. The front end of the trestle body and the transfer point are fixedly connected through the electromagnetic landing cones, an additional mechanical device is not needed for fixing, the trestle body can be rapidly separated from the transfer point in an emergency, emergency lifting is achieved, and safety is improved.

The invention discloses a method for extracting gallium through ultrasonic-assisted intensified electrolysis, which belongs to the technical field of the electrolytic extraction of gallium. The method comprises the steps of adding a cathode and an anode subjected to preprocessing into an electrolytic bath containing gallium-contained solution, applying ultrasonic field to the gallium-contained solution, and electrifying to perform the electrolytic extraction of gallium at 20 to 50 DEG C and 100 to 2000A / m<2>. As ultrasonic cavitation microjet has intensive stirring effect on the solution, the thickness of a diffusion layer on the surface of an electrode is reduced, and the reaction rate and the current efficiency are improved. In addition, the ultrasonic effect accelerates the speed of hydrogen bubble separated from the surface of the electrode, on one hand, the influence on practical current density by hydrogen is reduced or eliminated, on the other and, electrodeposited gallium is uniform and dense, the activity is reduced, and re-dissolution of the deposited gallium is also inhibited. The method for extracting gallium through ultrasonic-assisted intensified electrolysis has the advantages of simple process, easiness in operation and the like.

The invention relates to the technical field of petrochemical engineering, in particular to a novel nonmetallic gasoline antiknock. The nonmetallic gasoline antiknock consists of the following components in parts by weight; 20 to 50 parts of an oxygen-containing arylamine compound, 50 to 80 parts of an ester compound and 0.01 to 1 part of a phenolic compound, and does not contain any metallic component. An experimental result of the antiknock shows that the octane value of gasoline can be increased by 1.0 to 8.0 units after 0.5 to 3 weight percent of the novel nonmetallic gasoline antiknock is added into gasoline and high antiknock performance is achieved; in addition, the novel nonmetallic gasoline antiknock has the advantages of low raw material cost, performance indexes consistent with a national V gasoline standard, no bad influence on a spark plug engine, capability of effectively reducing environmental hazards, and the like, and has high application value and good economic benefits.

The invention discloses a power battery module based on coupling cooling of a loop heat pipe and a phase change material. The power battery module comprises a battery module, a cooling system and a phase change system, wherein the battery module comprises a plurality of battery cells arranged side by side left and right. The cooling system comprises evaporation plates and a condenser. A number ofevaporation plates are correspondingly arranged between the adjacent battery cells. The phase change system comprises a plurality of solid-solid phase change plates, and the solid-solid phase change plates are correspondingly arranged between the evaporation plates and the battery cells. The upper end of each evaporation plate is firstly communicated with a condensation cavity in a condenser abovethe battery box body through an air guide pipe, and then is communicated with the lower end of the evaporation plate through a liquid guide pipe on the side edge of the condensation cavity to form acirculation loop. The power battery module based on coupling cooling of the loop heat pipe and the phase change material is simple and compact in structure. Efficient and uniform heat dissipation of the battery module is achieved through mutual combination of the loop and the phase change material. Cyclic utilization of an evaporation working medium is achieved, and energy consumption is reduced.

The invention provides a bottle grabbing device which is high in grabbing speed and stable in grabbing and a control method of the bottle grabbing device. The grabbing device comprises a seat body anda sucker arranged at the front end of the seat body. A ventilation hole is formed in the sucker, and a cavity communicating with the ventilation hole is formed in the seat body in the axial directionof the seat body. A negative-pressure channel and a positive-pressure channel communicating with the cavity are formed in the circumferential direction of the cavity. The negative-pressure channel communicates with the ventilation hole so that negative pressure can be formed by the ventilation hole, and the sucker can suck the bottom of a bottle so as to grab the bottle. A spindle is arranged inthe cavity in the axial direction of the cavity so as to block communication between the positive-pressure channel and the ventilation hole. The spindle is provided with an exhaust channel communicating with the ventilation hole so that the ventilation hole can recover the normal air pressure and the sucked bottle can be released. The spindle is sleeved with a piston assembly which can elasticallystretch and contract relative to the cavity when positive-pressure gas is led into the positive-pressure channel so as to block communication between the negative-pressure channel and the ventilationhole. The control method includes the negative-pressure forming step, the grabbing step and the releasing step.

The invention discloses a proportioning metering and adding device for a plasticizer. The proportioning metering and adding device comprises a cylinder body, the lower end of the cylinder body is hermetically arranged, a left supporting plate and a right supporting plate are fixed at the left end and the right end of the outer side surface of the cylinder body respectively, a PLC is fixed on the upper surface of the right supporting plate, a stepping motor is fixed on the upper surface of the left supporting plate through a fixing frame, an output shaft of the stepping motor and the lower endof a screw are connected through a coupler, the screw is in threaded connection with a screw hole in a push plate, the output shaft of the stepping motor drives the screw to rotate, the screw drives the push plate to move up and down, and the push plate drives a transverse plate to move up and down through a vertical plate, so that the plasticizer is continuously extracted and discharged. The operation is simple, the plasticizer cannot leak out, and the safety is high; when the plasticizer in the cylinder body contains bubbles, an air valve is opened to enable an external vacuum pump to vacuumize the inside of the cylinder body, the plasticizer is heated through an electric heating plate to reduce the viscosity of the plasticizer, then the bubbles are accelerated to be separated, and the adding precision of the plasticizer is guaranteed.

The invention relates to a waste collecting device, in particular to a scrap iron collecting vehicle. The scrap iron collecting vehicle comprises a machine frame, a cleaning device, a motor driving device, a driving roller, a conveying belt, an electromagnetic driven roller and a scrap iron box, wherein the machine frame is a horizontal triangular-prism-shaped frame, the driving roller is horizontally arranged at the top of a frame body of the machine frame, the motor driving device is connected to the end part of the driving roller, an electricity storage device is arranged at the bottom of the machine frame and is electrically connected to the motor driving device, and the electromagnetic driven roller is horizontally arranged at the bottom of the front end of the machine frame. According to the scrap iron collecting vehicle, an electromagnet device is adopted, so that the effect of adjustable magnitude of magnetic adsorption force is achieved, in addition, the magnetic adsorption force can be flexibly adjusted according to different actual production scenes, and cleaning adsorption can be realized with the cooperation of the cleaning device.

A composite material composed of at least one of SiC, SiO2, Al or Si, with a He leakage rate of 1.3×10-10Pa·m3 / sec or below. With this constitution, a composite material with high vacuum airtightness, excellent thermal conductivity, adjustable thermal expansion coefficient, small strength fluctuation, and high reliability, and a wafer holding member using the composite material can be obtained.