2680results about How to "Avoid contact" patented technology

The invention provides a rigidity valve which comprises fixed iron, a valve element and a valve seat. The valve core is sleeved in the fixed iron and the valve seat; the valve element can move in the axial direction relative to the fixed iron and the valve seat so as to selectively open or close a valve port in the valve seat. The stress areas of the upper surface and the lower surface of the valve element are equal, so that the upward gas pressure and the downward gas pressure borne by the valve element are equal. Through the configuration, the operation comfort and the response speed of the rigidity valve are improved, meanwhile, the sealing performance is improved, and the sealing stability is improved.

The utility model relates to a gas stove provided with a gas control pot rack. A pot rack of an existing gas stove is only used for placing pots, and some additional rings are used as wind shields. According to an existing gas stove, flames are exposed in the atmosphere, much heat is lost due to the fact that the outer faces of the flames make contact with too much air, and the heat efficiency is reduced. The gas stove with the gas control pot rack comprises a gas stove body, a pot rack ring, a plurality of pot rack feet and a pot rack bottom. The pot rack ring is in a circular tube shape, the pot feet are evenly distributed on the pot rack ring, the pot rack bottom is a circular ring piece with an inner hole in the middle, the outer diameter of the pot rack bottom is the same as that of the pot rack ring, the pot rack bottom and the pot rack ring are connected together, and the pot rack bottom is arranged on a gas stove and sleeved outside a burner to control secondary air inflow and prevent excessive cold air from touching flames, so that heat efficiency is improved.

The invention relates to an air blower based on magnetic and gas combination axial force balance and a control method of the air blower, and belongs to the technical field of axial force regulation and control of air blowers. An axial air suspension bearing and an axial magnetic bearing are arranged in a main machine of the air blower, the axial magnetic bearing is connected with a magnetic bearing controller, and the magnetic bearing controller controls the axial position of a rotor by controlling the current of the axial magnetic bearing; an axial displacement sensor and a radial displacement sensor are arranged to detect the displacement of the rotor; and the main controller is used for controlling the starting and stopping of the axial magnetic bearing and the main machine based on the axial displacement and the radial displacement of the rotor, and sending out early warning. According to the magnetic and air combined axial force balance device, the axial magnetic bearing is used for providing active control force, the air bearing is used for providing passive support, the stability and reliability of a system are improved, and an important protection effect is achieved on core parts of an air blower.

The invention discloses a robot control method, device and equipment and a storage medium, and relates to the field of robots. If the robot is in the slipping state at present, a task execution device of the robot is lifted to a target height position from a current height position; and after the task execution device ascends to the target height position, the robot continues to be controlled to move. By starting slip detection, when it is detected that the robot slips, the position of the cutter head is adjusted to avoid subsequent continuous slip of the robot, and the use experience of a user is improved.

The invention relates to the technical field of heat preservation plate pressing, and discloses outer wall heat preservation plate processing production pressing equipment and a using method thereof.The outer wall heat preservation plate processing production pressing equipment comprises a workbench, a motor is fixedly connected to the bottom of the workbench, a threaded rod is fixedly connected to the output end of the motor, and a limiting elastic rod is fixedly connected to the bottom of the workbench. By arranging the correcting mechanism, firstly, the heat preservation plate needing to be pressed is placed on the inner wall of a pressing groove, then a motor is started to drive a threaded rod to rotate, when the threaded rod rotates, a threaded ring moves upwards, and when the threaded ring moves, a limiting elastic rod is pushed to contract upwards; and when the limiting elastic rod retracts to a certain position, the threaded ring is limited, the threaded ring is prevented from making contact with the bottom of the workbench, the threaded ring ascends and drives the ascending frame to move upwards at the same time, the ascending frame pushes the ascending rod to move upwards when moving, and the ascending rod drives the pulling rod to move upwards when moving.

The invention relates to a lithium manganese iron phosphate positive electrode material and a preparation method thereof, a positive plate and a battery, and belongs to the technical field of methods or devices for directly converting chemical energy into electric energy. The lithium manganese iron phosphate positive electrode material comprises an inner core, a first coating layer arranged on the surface of the inner core and a second coating layer arranged on the surface of the first coating layer, the inner core is lithium manganese iron phosphate I, the first coating layer comprises lithium manganese iron phosphate II, and the second coating layer comprises a carbon material and an inorganic solid electrolyte. The lithium manganese iron phosphate positive electrode material not only can endow a battery with relatively high energy density, but also can endow the battery with excellent cycle performance.

The invention relates to the technical field of vibrating screen mesh welding, and discloses a welding device for vibrating screen mesh machining, which comprises a rack, and a circular metal welding disc is arranged on the rack; the vertical rod is fixed on the top surface of the rack; the lifting seat is arranged on the vertical rod in a lifting manner; the mounting seat is fixed at one end, far away from the vertical rod, of the lifting seat; the rolling welding structure is arranged on the mounting seat, and the rolling welding structure comprises a roll welding module; and the flattening structure is arranged on the mounting seat, and the flattening structure is arranged right opposite to the metal welding disc. By pressing the middle of the screen through the flattening plate and comprehensively flattening the outer edge of the screen through the four flattening plates distributed in the circumferential direction in an array mode, the overall flatness of the screen in the welding process is further guaranteed, and reliable quality guarantee is provided for subsequent use of the screen.

The invention relates to the technical field of semiconductors, and discloses a semiconductor wafer clamp and semiconductor equipment. The semiconductor wafer clamp comprises a clamp body and a refrigeration structure, the clamp body comprises a base, a sealing ring and a pressing disc, the sealing ring is installed on the base, and the sealing ring is configured to make contact with a wafer part so that the part, making contact with the wafer, of the sealing ring can be sealed under the action of external pressure; the pressure plate can be arranged on the base in a covering manner so as to apply sealing external pressure to the wafer and press the wafer against the sealing ring; and the refrigeration structure is arranged on the clamp main body and can cool the wafer in contact with the sealing ring after the wafer carried by the clamp main body is taken out from the preset medium, so that the part, in contact with the sealing ring, of the wafer is converted into a non-adhesion state from an adhesion state. According to the semiconductor wafer clamp, the deposited wafer can be cooled, adhesion of photoresist and the sealing ring is avoided, and the situation that the wafer is broken or the sealing ring is pulled away from the base when the wafer is taken out of the clamp is avoided.

The invention provides a packaging device for oil-immersed food and a using method of the packaging device, relates to a food packaging technology, and particularly discloses a machine shell, a charging barrel and a machine frame. The machine frame is installed in the machine shell, the charging barrel is installed at the top of the machine frame, and two second driving rollers are installed at the top of the machine frame and located on the two sides of the charging barrel correspondingly; each second driving roller is provided with a coiled material belt; a bag making mechanism opposite to an output port of the charging barrel is mounted in the middle of the rack; a guide structure matched with the two material belts is arranged in the bag making mechanism; an edge sealing mechanism for sealing the two sides of the two material belts is arranged in the guide structure; a position adjusting structure enabling the upper ends of the two material belts to form an inlet and outlet is arranged in the guiding structure. The bottom of the bag making mechanism is provided with a traction mechanism used for pulling a material belt to move downwards in the vertical direction. The use of a material belt is accurately controlled through the bag making mechanism, so that the waste of materials is reduced; the position adjusting structure enables the charging barrel conveying pipeline not to make direct contact with the inner wall of the packaging bag, and the risk of cross contamination is avoided.

The invention relates to the technical field of charging piles, in particular to a modular intelligent dynamic power distribution charging pile. The invention provides a modular intelligent dynamic power distribution charging pile which comprises a charging pile body, a charging wire is fixedly connected to the charging pile body, a charging connector is installed at the movable end of the charging wire, a locking fastener is fixedly connected to the outer side of the charging connector, and a fixing frame is fixedly connected to the side, close to the charging wire, of the charging pile body. According to the invention, through the cooperation of a second rack and a notched gear, a sealing sleeve can be automatically opened when a charging connector is inserted into a charging socket, and can be automatically closed when the charging connector is pulled out, so that external wind and sand are effectively prevented from entering a charging port, and the charging port is protected from being damaged; the charging wire can be always in a suspended state, the charging connector does not make contact with the ground, abrasion is reduced, water and sand are prevented from entering the charging connector, the service life is prolonged, and applicability and durability are improved.

The invention discloses an intelligent tobacco leaf picking manipulator and a picking method.The manipulator comprises a mechanical arm, the tail end of the mechanical arm is provided with a binocular camera and an end effector, the end effector comprises a driving motor, a connecting module, a tobacco leaf cutting mechanical claw and an anti-scraping ball mechanical claw, and the two sets of mechanical claws are arranged in parallel up and down; the tobacco cutting mechanical grippers are arranged in parallel, are connected with an output shaft of the driving motor through a connecting module and are driven by the driving motor to perform opening and closing actions, two concentric circles surrounding a tobacco rod can be formed when the tobacco cutting mechanical grippers are closed, a cutting circle formed by the upper tobacco cutting mechanical grippers is larger than the periphery of the tobacco rod, and an anti-scraping circle formed by the lower anti-scraping ball mechanical grippers makes contact with the periphery of the tobacco rod. During working, the binocular camera positions the position of a tobacco stem and transmits the tobacco stem to the upper computer, the mechanical arm moves the end effector to the positioning position according to position information, the closed mechanical claw surrounds the tobacco stem, and when the anti-scraping ball mechanical claw moves upwards, the tobacco cutting mechanical claw cuts tobacco from bottom to top. The device has the advantages of high picking efficiency, low breakage rate, high adaptability and the like.

The invention discloses a driving permanent magnet synchronous motor with a heat dissipation mechanism, and relates to the technical field of 999. The outer side face of the rear end cover is fixedly connected with the inner side face of a base, a copper bar is embedded in the side, away from a shell, of the rear end cover, the inner side face of the rear end cover is fixedly connected with the surface of the copper bar, the side, away from the rear end cover, of the copper bar makes contact with the base, and the base is grounded; the air cooling assembly is fixedly connected with the end, close to the rear end cover, of the rotating shaft, the natural cooling assembly surrounds the outer portion of the shell, the inner side face of the natural cooling assembly is fixedly connected with the outer side face of the shell, the natural cooling assembly can increase the contact area with the outside, and the heat dissipation effect is enhanced. The rear end cover sucks air in the gap of the natural cooling assembly into the rear end cover to form flowing airflow, so that a better cooling effect is achieved, and the cooling effect of the air cooling assembly is radiated to the outside of the shell.

The invention discloses a wafer post-processing device and a post-processing method, and relates to the technical field of semiconductor manufacturing, and the wafer post-processing device comprises a box body; the clamping assembly is arranged in the box body and is used for horizontally clamping and driving the wafer to rotate; the post-processing assembly comprises a spraying head, the spraying head is arranged above the clamping assembly, and the liquid medicine outlet end of the spraying head sprays liquid and / or gas towards the wafer so as to clean the surface of the wafer; the spraying head sprays protective gas towards the wafer so as to form a protective gas curtain above the sprayed liquid medicine, so that mist and particles in the box body are prevented from being in contact with the liquid medicine; the spray header comprises a spray seat, a spray head and a spray head, wherein an accommodating cavity is formed in the spray seat; the core part is arranged in the accommodating cavity; the liquid medicine tube extends downwards through the mounting hole of the core part; a first gap is formed between the liquid medicine tube and the mounting hole, and the protective gas is transmitted downwards through the first gap.

The invention relates to the technical field of polyester resin, and discloses a preparation method and application of super-weather-resistant HAA curing type extinction polyester resin, neopentyl glycol, a triazine phenyl imide diol monomer, binary acid, an esterification catalyst, an onium salt curing accelerator and the like are subjected to a reaction, and the super-weather-resistant HAA curing type extinction polyester resin is obtained. The triazine phenyl imide diol monomer has a phenyl imide ring and triazine ring structure with heat resistance and structural stability, is beneficial to improving the high temperature resistance and mechanical strength of a polyester resin powder coating paint film, shows higher impact resistance, contains a dialkyl side chain, and can be used for preparing the polyester resin powder coating after being introduced into a polyester molecular chain. The modified polyester resin can generate steric hindrance and shielding effects, inhibit contact between water molecules and ester bonds in polyester molecular chains and reduce hydrolysis reaction of ester groups, so that the hydrolysis resistance of the polyester resin is improved. And the paint film has the advantages of good ultraviolet aging resistance, high weather resistance and high gloss retention rate.

The invention belongs to the technical field of keel bending, and particularly relates to an automatic bending device for a light steel joist, which comprises a conveyor, a bending assembly is arranged above the conveyor, and the device is provided with the bending assembly, so that the light steel joist can be attached to the surface of the bending assembly to be subjected to pre-deformation bending treatment; the light steel joist is subjected to small-angle deformation before formal bending treatment, so that the resilience after edge folding can be reduced, the residual stress in the light steel joist can be released, the possibility of quality problems such as deformation and cracking caused by stress concentration is reduced, the structural strength and durability of the light steel joist are enhanced, and the service life of the light steel joist is prolonged. The stability and reliability of the whole structure are guaranteed, the internal stress distribution is more uniform and reasonable, so that the machining precision and the product quality are improved, the bending consistency of the light steel keel is guaranteed, manual intervention is not needed, the automation degree of the bending process is greatly improved, the labor intensity is relieved, and the production efficiency is improved.

The invention provides a flexible braided electrode and an electrochemical polishing method for a complex inner channel, and belongs to the technical field of electrochemical machining. The flexible braided electrode is formed by mutually braiding a plurality of flexible conductive wires and a plurality of flexible insulating wires according to a certain interval, the diameter of the insulating wires is larger than that of the conductive wires, and steps with a certain height are naturally formed between the insulating wires and the conductive wires, so that short-circuit burn caused by contact between the conductive metal wires and an inner channel can be avoided, mass transfer can be enhanced, and product discharge can be accelerated; the flexible woven electrode is of a hollow net-shaped cylindrical structure, internal and external compound flushing can be achieved, and the flushing effect is improved. During polishing, the flexible braided electrode can be bent and deformed in a bent inner channel in a self-adaptive manner, internal and external compound flushing is performed by utilizing the internal and external through characteristic, and electrochemical polishing of the complex inner channel is realized by combining rotation and reciprocating motion of the electrode. The invention provides the flexible braided electrode with ingenious conception, and the flexible braided electrode is supplemented with an innovative process method, so that high-efficiency and high-quality finishing of a complex inner channel can be realized.

The invention discloses a welding device for chemical container barrel assembly production, and belongs to the technical field of welding equipment.The welding device comprises a welding box, an inner welding mechanism, an outer welding mechanism and two sets of positioning mechanisms are arranged in the welding box, and the two sets of positioning mechanisms are arranged on the two sides of the outer welding mechanism; the outer welding mechanism comprises a welding frame and an arc-shaped seat, a round hole is formed in the welding frame, and the arc-shaped seat is slidably connected into the round hole; the inner welding mechanism comprises a fixed frame, a movable frame and a mounting disc. The other side of the mounting disc and one side of the arc-shaped base are both connected with welding assemblies. The welding assembly comprises a fixing plate, a mounting plate and a welding gun. Automatic and synchronous welding work of the inner ring and the outer ring of the barrel can be achieved through the inner welding mechanism and the outer welding mechanism, the power and the cooling rate of the welding gun can be automatically adjusted through the linkage mechanism and the adjusting mechanism according to the moving line of the welding gun relative to a workpiece, and uniform and efficient welding work is guaranteed.

The invention discloses a manufacturing method of an electromagnetic valve material with high corrosion resistance and easy cutting, which relates to the technical field of stainless steel and mainly comprises the following steps: melting in a heating furnace, AOD (argon oxygen decarburization) refining, LF (ladle furnace) refining, pouring, heat treatment, pretreatment, primary electroplating, secondary electroplating and finished product obtaining. And meanwhile, tin-bismuth alloy with specific content is introduced as a modifier for modification treatment, a slag former is added for refining and slagging-off, and the electromagnetic valve material which is good in corrosion resistance, high in strength and free of cutting is successfully prepared.

The invention provides an ocean engineering anticorrosive coating and a preparation method thereof, and belongs to the technical field of coatings. The coating is prepared from the following raw materials: fluorocarbon resin, modified synthetic mica, modified basalt fibers, modified carbon nanotubes, nano silicon dioxide, nano zinc oxide, nano titanium dioxide, carbon fibers, zinc phosphate, hydroxyl-terminated polybutadiene, a plant extract, organic tin and the like. The modified synthetic mica and the modified carbon nanotubes are modified by adopting pentaerythritol stearate, cellulose nitrate and sodium hexametaphosphate; the modified basalt fiber is modified by adopting sodium stannate, polyvinyl alcohol and sodium hexametaphosphate; the plant extract is ethanol percolation extract of kandelia candel leaves and mangnolia officinalis leaves. All the components are used in a matched mode according to a certain proportion, and the advantages of being excellent in anti-corrosion performance, good in mechanical performance, excellent in anti-aging performance, environmentally friendly and the like are achieved.

The invention discloses salt-tolerant xylanase and application thereof, and relates to the technical field of biology. The amino acid sequence of the salt-tolerant xylanase is as shown in SEQ ID NO: 1. According to the invention, a new xylanase gene xynaes is separated from a metagenome of Xinjiang Aiding Lake, and the xylanase belongs to the GH10 family and has low homology with reported xylanase. The recombinant xylanase has high activity and tolerance at a high temperature, has good performance in an alkaline environment, has high tolerance to various metal ions, quickly loses activity under SDS treatment, and should be prevented from being in contact with SDS in industrial production.

The invention relates to an electrode material for lithium extraction, a preparation method of the electrode material, a lithium extraction electrode and a lithium extraction system, belongs to the field of salt lake lithium extraction, and solves at least one of the problems of fast capacity fading, relatively low overall lithium extraction efficiency and short service life of a lithium extraction electrode for an alkaline solution in the prior art. A preparation method of an electrode material for lithium extraction comprises the following steps: mixing an electrode active material with a rare earth salt solution, and forming a phosphate rare earth layer on the surface of the electrode active material in an in-situ coating manner; the electrode active material comprises lithium iron phosphate and a doped derivative thereof. When the preparation method, the obtained electrode material, the lithium extraction electrode and the lithium extraction system are applied to lithium extraction of salt lake brine, especially alkaline brine, at least one of the cycle performance, the lithium extraction efficiency and the service life is remarkably improved.

The invention discloses continuous production mixing equipment for a low-VOC polyurethane foaming catalyst, and relates to the technical field of catalyst production.The continuous production mixing equipment comprises a quantitative discharging mechanism and a conveying pipe installed on one side of the top of the quantitative discharging mechanism, a material mixing mechanism is arranged at the bottom of the quantitative discharging mechanism, and a material mixing motor is arranged at the top of the material mixing mechanism; the quantitative discharging mechanism comprises a first fixing support, a crushing box is fixedly mounted on one side of the interior of the first fixing support, a grinding box is fixedly mounted at the bottom of the crushing box, a protective cover is fixedly mounted on the inner side of the top of the crushing box, and a lifting motor is fixedly mounted in the center of the top of the crushing box. A separation baffle is sealed through an attaching sealing plate, the ground raw materials can be conveniently sealed and stored, the situation that the raw materials make contact with air, and consequently the catalytic effect of the raw materials is affected is avoided, and the situation that the catalytic effect of the raw materials is affected due to oxidation of the raw materials is avoided by conducting multiple sealing on the quantitative discharging mechanism.

The utility model discloses cigarette packaging paper. The cigarette packaging paper comprises an inner part, an outer part, a release layer (105) and an adhesive sticker layer (106), wherein the release layer (105) and the adhesive sticker layer (106) are arranged between the inner part and the outer part; the outer part sequentially comprises an outer PE (polyethylene) lamination layer (101), an outer paper layer (102), an outer composite adhesive layer (103) and an outer PET (polyethylene terephthalate) layer (104); the inner part sequentially comprises an inner PET layer (107), an inner composite adhesive layer (108), an inner paper layer (109) and an inner PE lamination layer (110); the release layer (105) is close to the outer PET layer (104), and the adhesive sticker layer (106) is close to the inner PET layer (107). According to the utility model, the outer PE lamination layer and the inner PE lamination layer are respectively laminated on the outermost layer and the innermost layer of the packaging paper to form the double-sided laminated paper, so that the leakproofness and the barrier property of the paper are effectively improved. The pressure relief device is arranged at the bottom of the packaging box, so that the problem that the whole packaging box swells due to the fact that the sealing performance of the packaging box is improved is solved.

The invention relates to the technical field of aerosol monitoring, in particular to a multichannel pipeline aerosol continuous monitoring system. Comprising a sampling module, a measuring module and a control module which are sequentially communicated and connected through gas channels, the system further comprises a data processing module. Wherein the sampling module is used for sampling to-be-detected gas from a pipeline; the measuring module is used for measuring the radioactive activity and the concentration of aerosol of the sampled to-be-measured gas sample; the control module is used for performing on-off control on the gas circulation process in the sampling and measuring process; and the data processing module is used for setting parameters involved in the gas aerosol continuous monitoring process, processing the data and displaying the monitoring data. According to the multi-channel system designed by the invention, the air inlet does not need to be manually replaced to the to-be-detected pipeline, so that the cost is reduced, the contact between people and radioactive aerosol is avoided, and the safety of operators is ensured to a great extent.

The invention discloses a preparation method of a phosphorus-doped hard carbon composite material for a sodium battery. The preparation method comprises the following steps: preparing a hard carbon precursor, preparing a phosphorus-doped precursor, preparing a catalyst precursor, preparing a hard carbon composite material, and carrying out pickling purification. Through pre-oxidation treatment on the biomass raw material, oxygen-containing free radicals can be introduced, the structural disorder can be improved, the sodium storage space and the capacity can be improved, phosphorus elements are uniformly distributed into the hard carbon material through a vapor deposition method, meanwhile, graphene and carbon nanotubes are formed in the material, closed pores are increased, the sodium storage space is improved, and the performance of the hard carbon material is improved. According to the present invention, the ion transmission path is shortened, the sodium ion transmission is accelerated, the capacity and the conductivity of the material are enhanced, the material is coated with the amorphous carbon formed by the asphalt, such that the phosphorus expansion can be inhibited, the contact with the electrolyte can be avoided, the capacity and the first effect can be improved, and the phosphorus and the coating layer can be re-distributed while the asphalt coating is performed so as to form the small amount of the phosphorus fiber crystal; and the conductivity and the capacity are improved.

The invention relates to the technical field of polyurethane coatings, and discloses a preparation method of an antibacterial wear-resistant waterborne polyurethane coating, which comprises the following steps: taking concentrated hydrochloric acid, p-phenylenediamine, sodium nitrite, paraformaldehyde, amino-modified nano silicon dioxide and hexamethylene diisocyanate as raw materials; the preparation method comprises the following steps: taking 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as a raw material, carrying out diazotization coupling reaction, substitution reaction, Mannich reaction and addition reaction to prepare modified polyisocyanate, then taking 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and ((2-aminoethyl) azadiyl) dimethanol as raw materials, carrying out substitution reaction to prepare DOPO-based dihydric alcohol, and carrying out reaction to prepare the DOPO-based dihydric alcohol. Finally, the modified polyisocyanate, DOPO-based dihydric alcohol and polyethylene glycol 400 are used as raw materials, an antibacterial wear-resistant polyurethane emulsion is prepared through a prepolymerization reaction and a chain extension reaction, and the prepared polyurethane coating has good antibacterial, anti-ultraviolet, flame-retardant and wear-resistant properties.

The invention discloses a sampling device and a sampling system for general oil-filled power equipment. The device comprises a pipeline control module and a self-sealing quick connection module, the self-sealing quick connection module comprises a one-way valve; a pipeline is defined in the main body part, the two opposite ends of the main body part are used for being in sealed connection with one end of the one-way valve and a sampling opening of the universal oil-filled electrical equipment respectively, and the sampling opening is connected with the one-way valve through the pipeline; the pipeline control module comprises N electromagnetic valves, wherein one end of each electromagnetic valve is connected to the corresponding container in a sealed mode; one end of the sample injection port is connected with the other end, away from the main body part, of the one-way valve, and the other end of the sample injection port is connected with the other end of each electromagnetic valve. Therefore, the safety in the sampling process is improved, and the quality of the collected sample is improved.

The invention relates to the technical field of rice processing, in particular to impurity removal equipment for rice production and processing, which comprises a straight channel, a bent pipe and the like, the left side of the straight channel communicates with a bent pipe. Rice is dispersed through the two adjacent first baffles and the two adjacent second baffles, the conveying pressure of the rice stacked in the straight channel is reduced, and the situation that due to the influence of the gravity of the rice, the rice is completely stacked at the bottom of the inner side of the straight channel to be conveyed, and blockage is caused is avoided; the first baffle and the second baffle drive rice to rotate while conveying, the rice is prevented from only making contact with the bottom of the inner side of the straightway, loss of the bottom of the inner side of the straightway is reduced, and the service life of equipment is prolonged. The length of each first baffle is larger than that of each second baffle, so that the conveying distance between every two adjacent first baffles is longer, the conveying distance between every two adjacent second baffles is shorter, the initial gushing position of the rice is changed, the phenomenon that the rice collides with each other after gushing at the same time is avoided, and the integrity of the rice after conveying is guaranteed.

The invention discloses a water-based flux cleaning agent for integration, and belongs to the field of semiconductor cleaning agents. The water-based flux cleaning agent is prepared from the following raw materials in percentage by weight: 30-50% of alcohol ether solvent, 1-5% of organic amine, 3-5% of gemini imidazoline corrosion inhibitor and 40-70% of deionized water, wherein the sum of the weight percentages of the raw materials is 100%. According to the water-based flux cleaning agent, the imidazoline corrosion inhibitor is adopted, so that a remarkable cleaning effect on flux residues, soldering paste and fine particles on a semiconductor electronic device is achieved, meanwhile, the brightness of welding spots can be maintained, the surface insulation performance is good, the metal surface of an IPM module can be effectively prevented from being oxidized, and the service life of the IPM module is prolonged. The cleaning agent is especially suitable for cleaning pollutants in the welding process of semiconductor chips, chip type capacitors and circuit substrates.

The invention relates to the technical field of cables, and provides a cable with bending durability, the cable comprises a cable body, the cable body comprises an insulating sheath and a plurality of cable cores, the cable body further comprises a hollow positioning disc and a plurality of cable core butt joint mechanisms with a telescopic locking function, the hollow positioning disc is communicated with an air pressure adjusting assembly, and the cable core butt joint mechanisms are arranged on the hollow positioning disc. The cable core butt joint mechanisms are in one-to-one correspondence with the cable cores and are used for positioning and conducting the cable cores and extending the cable cores, each cable core butt joint mechanism comprises a positioning ring, a telescopic positioning assembly, a positioning reset spring and a conductive spring, the positioning rings are arranged on the hollow positioning disc in a sealing and penetrating mode, and the telescopic positioning assemblies are arranged on the positioning rings; and a plurality of air inlet through holes are formed between the positioning ring and the hollow positioning disc. By means of the technical scheme, the problem that in the prior art, when a bent durable cable is applied to a drag chain system, the abrasion degree is large is solved.