34results about How to "Control the degree of expansion" patented technology

The invention discloses a corrugated pipe forming device based on electromagnetic forming. The corrugated pipe forming device is characterized by comprising a rectifier (1), a resistor (2), a switch (3), a capacitor (4), a boosting transformer (5), an upper fixing plate (6), fixing bolts (7), a pressing block (8), a mold base (9), a constraint mold (11), a coil (12), a lower fixing plate (13), a T-shaped platform (14), trapezoid holes (15), exhaust holes (16), fixing grooves (17) and a wire hole (18). In addition, a thin-wall energy-absorption corrugated pipe forming method based on the electromagnetic forming principle has the advantages that the number of machining processes is small, machining efficiency is high, forming accuracy is high, the pipe forming speed is high, a thin-wall metal pipe can be formed at a high strain rate, the plasticity of metal materials is improved greatly, and the yield strength of the materials is enhanced substantially. By changes of the shape of the constraint mold in the forming device, different wave shapes can be formed, and machining flexibility of the forming device is high.

The invention discloses a method for preparing black phosphorus nanosheets. The method comprises the following steps: (1) assembling black phosphorus used as an electrode and an organic solvent containing an intercalating agent, used as an electrolyte, in order to form an H-shaped electrolytic cell; (2) applying a current or voltage between the electrodes to intercalate and expand the black phosphorus; (3) filtering and washing the treated black phosphorus obtained in step (2), and carrying out ultrasonic vibration treatment on the treated black phosphorus in an organic solvent; and (4) centrifuging the obtained solution, and collecting the obtained supernatant to obtain a uniform-size black phosphorus nanosheet dispersion. The black phosphorus nanosheets stripped by the method have a thickness of 2-100 nm and a lateral dimension of 10 nm to 50 [mu]m. The method solves the problem of difficult control of the thickness and the lateral dimension of the black phosphorus nanosheets duringthe preparation of the black phosphorus nanosheets in the prior art, also solves the problem of too long time in traditional black phosphorus nanosheet preparation methods, and has the advantages of simple preparation process, low energy consumption, low cost, and realization of large-scale production.

The invention discloses a composite energy absorption tube machining device which comprises a rectifier (1), a resistor (2), a switch (3), a capacitor (4), a boosting transformer (5), an upper fixing plate (6), a fixing bolt (7), a pressing block (8), a mould frame (9), a constraint mould (11), a coil (12), a lower fixing plate (13), a T-shaped platform (14), an exhaust vent (16), a fixing groove (17) and a wire hole (18). Compared with a hydraulic forming method and a mechanical bulging method, a composite metal energy absorption forming method based on the electromagnetic forming principle and used in the composite energy absorption tube machining device is high in machining efficiency and high in the pipe fitting forming speed and enables composite metal tubes to be formed under the high strain rate; due to the fact that the high strain deformation process can be used for forming metal materials which are deformed difficultly through a conventional method, the plasticity of the metal materials is greatly improved, and the yield strength of the materials is greatly improved. Different wave forms and reinforcing ribs can be formed by changing the shape of the constraint mould in a mould body, and the machining flexibility is high.

The invention provides a LED light source whose light-emitting angle is larger and can be regulated and backlight module by adopting said LED light source. Said invented backlight module includes a light-conducting plate and at least a LED light source, Said light-conducting plate includes at least one light-incoming surface. and said LED light source includes a base, a light-emitting chip and a package resin. Said package resin can be used for covering said light-emitting chip and can be formed into a light-outcoming surface, said ligh-outcoming surface and light-incoming surface of the ligh-conducting plate are oppositely placed-in which said LED light source further includes a diffraction grating placed in its light-outcoming surface position. The optical diffraction effect produced when the light beam sent from LED light-emitting chip is out come by means of diffraction grating can make its light-emitting angle be enlarged so as to reduce optical dark region of light-incoming side of the light-conducting plate and raise light-outcoming uniformity of backlight module, to reduce optical dark region of light-incoming side of the light-conducting plate and raise light-outcoming uniformity of backlight module.

The invention discloses porous three-dimensional phosphaalkene as well as a preparation method and an application of the porous three-dimensional phosphaalkene. The porous three-dimensional phosphaalkene has a stable three-dimensional structure formed by self-crosslinking assembly of black phosphaalkene and has the porosity of 50%-98% and the specific surface area of 200-2000 m<2> / g. A relativelystrong electric field is applied to a two-electrode or multi-electrode system by using an electrochemical method, an intercalator and an auxiliary intercalator directionally move towards a black phosphorus crystal and enter an interlayer to destroy an interlayer force of the black phosphorus crystal, and black phosphorus interlayers are kept crosslinked, but an interlayer distance is increased, sothat the black phosphorus crystal expands and the porosity is enlarged, then, the expanded black phosphorus is treated by freeze-drying, and thus, the porous three-dimensional phosphaalkene is obtained. The porous three-dimensional phosphaalkene has excellent physical and chemical properties instead of increasing the wettability of an electrolyte to an electrode material, is also beneficial to the adsorption and diffusion of reactants and metabolites in a reaction process and can be applied to the field of hydrogen production under electrochemical catalysis.

The invention discloses an inflation protection device and method for welding of a pipe fitting, wherein the device is applied in gas protection of the inner wall of a weld joint when butting and welding the pipe fitting and comprises a middle shaft pipe, an expansion gasbag, a sliding plate, a support rod component capable of grasping and loosening the pipe wall, a spray head support extending from one end of the middle shaft pipe and a jet head arranged at the end part of the spray head support. A support rod can grasp and loosen the pipe wall through expansion and contraction of the expansion gasbag, a spray head can rotate directly, when in welding, the jet head can be controlled to aim at the welding part of the weld joint and move along with the welding part. The inflation protection device can pertinently provide gas protection according to the welding part, not only reliably provide anti-oxidation protection for the welding position and can be used for greatly reducing the amount of nitrogen, but also can be simultaneously used for shortening the primary preparation time of welding, and further can be used fro reducing the cost and improving the efficiency under the situation of improving the welding quality.

The invention discloses a solar power generation unmanned ship, and the ship comprises an angle adjustment hydraulic cylinder, a sliding bearing, a lower solar power generation panel, a guide rail, anupper solar power generation panel, a guide rod, an expanding hydraulic cylinder, a ship body, and a support rod. All the conventional unmanned ships employ lithium batteries or lead-acid cells for supplying power to instrument equipment, and even the ship bodies are driven by electric energy to move. When the electricity is not sufficient, the conventional unmanned ships need to go back to the shore for charging or replacing the batteries, so the conventional unmanned ships cannot continuously work for a long time. According to the invention, two sides of the unmanned ship provided by the invention are provided with solar power generation panels, and the electric energy formed through the conversion of the solar energy is used for charging the battery. The solar generation panels comprise two layers. The lower part of the lower solar power generation panel is provided with the angle adjustment hydraulic cylinder, and the upper part of the lower solar power generation panel is provided with the expanding hydraulic cylinder, wherein the angle adjustment hydraulic cylinder and the expanding hydraulic cylinder are respectively used for adjusting the inclination angle and expanding area of the solar power generation panels. The inclination angle and expanding area of the solar power generation panels can be adjusted in real time according to the position of the sun and the weatherconditions, and guarantees the safe and stable operation of the unmanned ship while obtaining the maximum power generation capacity.

The invention discloses a loading device and a loading method for an expansion loop, and aims to solve the problems that a loading procedure is uncontrollable, the loading reliability is poor, the sample temperature is too high, and an application scope is narrow. The loading device for the expansion loop consists of a pellet, an actuator and a target board. The density and the yield strength of the pellet are low, so that the pellet deforms easily under an impact effect; the actuator is a metal cylinder; the yield strength and the density of the actuator are greater than that of the pellet; and the target board is made of a high-strength and high-density material. The loading method comprises the steps that the pellet impacts the target board at a high speed, and lateral expansion is generated, resulting in that internal pressure of the actuator rises sharply; the actuator expands due to the pressure; and the expansion loop expands radially by the action of the actuator. The loading device is simple and practical, and can load precisely; a scope of a loading strain ratio is greater than that of the existing device; the loading procedure is not limited by the material of the expansion loop; and the loading device is wide in application scope.

The invention provides a novel expansion anchor bolt, and belongs to the technical field of anchor bolt fixing. The novel expansion anchor bolt is used for fastening an installing base surface and comprises an anchor rod and a sleeve which is arranged on the outer surface of the anchor rod in a sleeving mode in the mode of doing reciprocating motion in the extending direction of the anchor rod, acontaining cavity is formed in the anchor rod, and expansion bodies and a cocking part used for being connected with the expansion bodies in a butting-joint mode to enable the non-hinged ends of the expansion bodies to be capable of at least partially protruding out of a containing groove; and the non-hinged end of each expansion body is provided with a guiding surface, and the guiding surfaces are used for being connected with one end of the sleeve in an abutting mode till the expansion bodies are expanded in the mode that the non-hinged ends rotate to make contact with the installing base surface. According to the novel expansion anchor bolt, the sleeve abuts against the guiding surfaces to enable the expansion bodies to be expanded, and the expanding and fixing effects are achieved. Thestructure is simple, anchoring can be achieved only by rotating or knocking the sleeve, labor is saved, and the expansion degree of the expansion bodies is controlled by controlling the abutting length of the sleeve.

The invention discloses a gas expanded granular sludge bed anaerobic reactor. The reactor comprises an anaerobic reaction body (9), a water pump (6), a Venturi tube (5), a biogas circulation pipeline (8), a feeding tank (7), a discharging port (3), a gas outlet (2), a gas holder (1) and a sampling hole (4). According to the gas expanded granular sludge bed anaerobic reactor, sewage is sucked by the water pump (6), is mixed with biogas through the Venturi tube (5) and then enters the anaerobic reaction body (9) through jet, uniform distribution of gas and the liquid is realized, the circulated biogas amount can be controlled by controlling the external circulation pipeline (8), and the expansion degree of granular sludge in the reactor is controlled.

The invention relates to the technical field of concrete preparation and relates to anti-shrinkage concrete. The anti-shrinkage concrete is prepared from, by weight, 200-260 parts of cement, 30-45 parts of mineral powder, 70-110 parts of coal ash, 740-840 parts of yellow sand, 1000-1020 parts of gravels, 3-7 parts of a water reducing agent, 1-5 parts of an expanding agent, 1-5 parts of an antifoaming agent and 170-200 parts of water. By adjustment of a ratio of raw materials of the concrete and adding of functional additives, the concrete shrinkage rate is decreased, harmful cracks of concretestructures due to early shrinkage, dry shrinkage and cold shrinkage are effectively reduced, great crack resistance and seepage prevention effects are achieved, and accordingly concrete strength is improved.

The invention discloses an awning capable of collecting rainwater. The awning comprises an awning fabric and a liquid collecting tank, wherein the awning fabric is supported by brackets arranged on a wall; the liquid collecting tank is used for collecting the liquid on the awning fabric; the liquid collecting tank comprises a liquid collecting tank A and a liquid collecting tank B, wherein the liquid collecting tank A is arranged at the lower end of the awning fabric and is capable of collecting the liquid downward flowing along the awning fabric, and the liquid collecting tank B is arranged between the wall and the upper end of the awning fabric; the liquid collecting tank A is communicated with a liquid draining pipe A; and the liquid collecting tank B is communicated with a liquid draining pipe B which is communicated with the liquid draining pipe A. The awning has the beneficial effects that the awning can prevent rainwater from entering a room in a rainy day, the rainwater dropping onto the awning fabric can be collected, the utilization for the collected rainwater is beneficial to water resource saving, the arrangement of the liquid collecting tank B is beneficial to the collection of the rainwater falling from the wall, and then the contact between the rainwater and brackets is reduced, so that an anti-rusting function can be achieved and the prolonging for the service life of the bracket is benefited.

The press machine for the Roman chair forming die comprises a power box, a cooling box, a junction box, power pipes and a piston cylinder, the bottom and the top of the power box are connected with the junction box and the cooling box respectively, the power pipes are embedded into the side face of the power box, and the bottoms of the power pipes are embedded into the two sides of the piston cylinder respectively. A fan and a plurality of sliding rings are fixed to the inner wall of the cooling box through supporting rods, supporting plates are fixed to the side faces of the sliding rings through supporting rods, sliding rods movably penetrate through the middles of the sliding rings, and the tops and the bottoms of the sliding rods are fixed to the moving plates and the connecting plates correspondingly. The mercury in the power box expands after being heated, the mercury expands to push the pressure column to move downwards in the piston barrel, the pressure is increased through thermal expansion and cold contraction of the mercury, the heated area of the mercury is very large, the mercury can be rapidly expanded, and compared with a pressure increasing mode of a traditional press, the pressure is increased very rapidly, the pressure column moves rapidly, and the energy consumption is reduced. And the processing efficiency of the pressure column is very high.

The invention relates to a preparation method of chromium-free pickled leather, which can uniformly expand and be loosened properly, is beneficial to permeation and combination of tannins and dyes, and ensures that finished leather is soft and flat and fine in grain surface. Specifically, the following procedures are sequentially carried out: fur soaking, fleshing, pre-degreasing, enzyme depilating, alkali soaking, leather peeling, dealkalizing, degreasing and softening, pickling and pickled leather production, wherein the alkali soaking comprises the following steps: putting depilated leatherinto a rotary drum, controlling the liquid ratio to be 1.2-1.5, adding 0.2-0.5% of a penetrant and 0.5-0.8% of sodium hydrogen sulfide, and carrying out low-speed rotary drum treatment for 10-15 minutes; then, stopping operation of the drum and supplying water to adjust the pH value to be 7-8, sequentially adding 0.8%-1.0% of xonotlite fiber particles, 1.5%-3.0% of slaked lime and 0.8%-1.0% of alkaline leaching enzyme, performing low-speed rotary drum treatment at a low speed for 30-45 minutes, inspecting the leather, and washing the leather with water and discharging the leather from the drum after the expansion degree meets the requirement.

The invention provides a sewage treatment system utilizing filamentous bacteria and controlling sludge bulking. The sewage treatment system comprises a grating, an air floatation tank, a sludge-membrane mixed biological tank and a membrane separation system which are connected in sequence, and the mud-membrane mixed biological tank comprises a degassing tank, an anaerobic tank, an anoxic tank and an aerobic tank. The invention also discloses a process of the system. According to the sewage treatment system, physicochemical treatment and biological decomposition are coordinated and matched, filamentous bacteria are used for sewage treatment, the filamentous bacteria are controlled to be in a good state, sludge bulking harm caused by excessive reproduction of the filamentous bacteria is avoided, the degradation advantage of the filamentous bacteria on pollutants is utilized, the treatment efficiency of all links is improved, meanwhile, effluent quality and operation stability of a sewage plant are improved, and energy conservation and consumption reduction are achieved.

The invention relates to a vertically ascending multi-rotor aircraft and a horizontally ascending fixed-wing aircraft. The vertically ascending multi-rotor aircraft includes a fuselage and a side wing. The side wing is provided with a rotor, and the side wing adopts a fixed wing. structure, the fixed wing is an aircraft fixed wing, including a rigid fixed wing leading edge, and the rear side of the fixed wing leading edge is provided with a wing airbag that can expand and retract. Edge-joined airbag wing sections. The fixed wing of the aircraft includes a connection part fixedly connected with the fuselage of the aircraft. The rigid fixed wing trailing edge is fixed on the connecting part, and the leading edge of the fixed wing can swing to the rear edge of the fixed wing. A variable-sweep wing is formed. The multi-rotor aircraft vertically ascending and descending provided by the present invention can make the wing airbags in the retracted state during the ascending and descending phase, reduce the lateral stress area of ​​the fixed wing, and effectively reduce the influence of side seams on the multi-rotor aircraft vertically ascending and descending .

The invention discloses a farming machine capable of cleaning seedbed stubbles and performing deep scarification, relates to the technical field of plowing machinery, and solves the problems that theadjusting capacity is general, the plowing depth is inconvenient to adjust rapidly according to needs, meanwhile, the stability is insufficient through a lifting adjusting mode, and the fixing capacity is general. The invention relates to a farming machine capable of cleaning seedbed stubbles and performing deep scarification. The farming machine comprises a tractor, the rear side of the tractor is connected with a shell through a connecting rod matched with a rotating shaft. A main body of the shell is of an L-shaped structure, and a generator and a hydraulic station are fixedly arranged at the top of the shell through bolts. By arranging a splicing shaft and a plowing frame, a convenient and fast adjusting function is provided for the farming machine, the plowing mode by opening the plowing frame through the hydraulic cylinder is more stable than the plowing mode by adjusting the height of the plowing assembly, the splicing shaft is hydraulically controlled, the unfolding degree of the plowing frame can be controlled by adjusting the quantity of output liquid of the hydraulic station. And the farmland depth can be adjusted.

The invention discloses a portable catalytic agent bracket and a using method thereof, and relates to the technical field of heat exchangers. The portable catalytic agent bracket comprises a tube plate and a heat exchange tube; when a tray assembly is used, an adjusting sleeve slides upwards to adjust unfolding of bearing blades, and when use of the tray assembly is completed, the adjusting sleeve slides downwards, so that the tray assembly can be folded to reduce the occupied space; the unfolding degree of the tray assembly can be controlled through the lifting height degree of the adjusting sleeve, so that the tray assembly can be suitable for heat exchange tubes with different tube diameters, and the application range of the tray assembly is widened; the bearing blades are connected with first limiting holes in the inner walls of the heat exchange tubes through elastic stretchable rods in a clamped manner, and the opening degree of a top opening of the tray assembly is matched with the inner diameters of the heat exchange tubes, so that the situation that the tray assembly affects the internal circulation areas of the heat exchange tubes is avoided; and the tray assembly is composed of the plurality of bearing blades, each bearing blade is independently designed, and when the certain bearing blade is damaged after being used for a long time, the bearing blade can be independently detached and replaced.

The invention relates to a processing method of a tubular lead-acid battery, which belongs to the field of batteries. The processing method is characterized by comprising the following steps: performing battery formation treatment on the battery under a low-density electrolyte environment; performing heavy-current discharge treatment during the later stage of battery formation; performing acidity control treatment on the battery; and using a sealing plug to seal a liquid injection port of the battery. Low-density electrolyte is adopted for formation during the battery formation, so that the formation efficiency and the charging level of a whole polar group can be improved; the heavy-current discharge is adopted during the later stage of the formation, so that a dense protection layer can be formed on the surface of the polar group, the polar group can be protected, and the reaction speed of consumption of active substances during the storage period can be deferred; and the acid content in the polar group is controlled within a appropriate range, the storage is convenient, the sealing plug is adopted for sealing, the expansion extent of the battery is controlled, the oxidation of the polar group of the battery can be prevented, the charge retention capability is improved, a user affuses the electrolyte before use, the simple supplementary charging is performed, the safety in transportation of the battery is improved, and the using cost of the user is also reduced.

The invention discloses an intelligent curtain capable of being opened and closed through automatic light sensing. The intelligent curtain comprises a first mounting plate, a servo motor, a second mounting plate and curtain cloth; a control panel is arranged on the left side of the first mounting plate; the servo motor is mounted in the first mounting plate in an embedded manner; the output end ofthe servo motor is fixedly connected with a screw rod; the outer side of the screw rod is in threaded connection with a push block; the second mounting plate is positioned on the right side of the screw rod; bearing rollers are arranged on the inner sides of the second mounting plate and the first mounting plate; the right end of the bearing roller is connected with a limiting plate, and the bearing roller penetrates through the interior of the second mounting plate; a first curtain ring is arranged on the outer side of the bearing roller, a second curtain ring is arranged on the outer side of the first curtain ring, and the curtain cloth is mounted below the second curtain ring and the first curtain ring. According to the intelligent curtain capable of being opened and closed through automatic light sensing, the curtain cloth can be conveniently controlled according to the light intensity, manual control over the intelligent curtain is facilitated, and the curtain cloth is easy to clean.

The invention discloses a porous three-dimensional phosphorene and its preparation method and application. The porous three-dimensional phosphorene has a stable three-dimensional structure formed by the self-crosslinking assembly of black phosphorene, the porosity is 50% to 98%, and the specific surface area is 200~2000m 2 / g. In the present invention, a strong electric field is applied in a two-electrode or multi-electrode system through an electrochemical method, and the intercalation agent and the auxiliary intercalation agent move directionally to the black phosphorus crystal and enter the interlayer, destroying the interlayer force of the black phosphorus crystal, and making the black phosphorus crystal The phosphorus layers maintain cross-linking but the interlayer distance increases, so that the black phosphorus crystals expand and the pores become larger, and the expanded black phosphorus is treated by freeze-drying to obtain porous three-dimensional black phosphorene. The porous three-dimensional black phosphorene has excellent physical and chemical properties, which can not only increase the wettability of the electrolyte to the electrode material, but also facilitate the adsorption and diffusion of reactants and metabolites during the reaction process, which can be applied to electrochemical catalytic hydrogen production field.

The invention provides a cardiopulmonary function tester with a rehabilitation training function, comprising a support base plate for supporting a cardiopulmonary rehabilitation training device, a slope plate, a bicycle body for rehabilitation training, and a cardiopulmonary function test for cardiopulmonary function testing Mechanism and adaptive protective mechanism for joint protection for prolonged training, related to the field of medical rehabilitation. The cardiopulmonary function tester with rehabilitation training function analyzes the close relationship between rehabilitation training and testing according to the existing problems in cardiopulmonary function rehabilitation and testing, and designs a rehabilitation training function that can combine real-time monitoring and protective rehabilitation training. Cardiopulmonary function tester, which effectively solves the problem that the general cardiopulmonary function test device has a single function to help grasp the real-time condition of the patient. The rehabilitation training device lacks protection for athletes, which has certain safety hazards and easily affects the recovery efficiency. .

The invention discloses a solar power generation unmanned ship, and the ship comprises an angle adjustment hydraulic cylinder, a sliding bearing, a lower solar power generation panel, a guide rail, anupper solar power generation panel, a guide rod, an expanding hydraulic cylinder, a ship body, and a support rod. All the conventional unmanned ships employ lithium batteries or lead-acid cells for supplying power to instrument equipment, and even the ship bodies are driven by electric energy to move. When the electricity is not sufficient, the conventional unmanned ships need to go back to the shore for charging or replacing the batteries, so the conventional unmanned ships cannot continuously work for a long time. According to the invention, two sides of the unmanned ship provided by the invention are provided with solar power generation panels, and the electric energy formed through the conversion of the solar energy is used for charging the battery. The solar generation panels comprise two layers. The lower part of the lower solar power generation panel is provided with the angle adjustment hydraulic cylinder, and the upper part of the lower solar power generation panel is provided with the expanding hydraulic cylinder, wherein the angle adjustment hydraulic cylinder and the expanding hydraulic cylinder are respectively used for adjusting the inclination angle and expanding area of the solar power generation panels. The inclination angle and expanding area of the solar power generation panels can be adjusted in real time according to the position of the sun and the weatherconditions, and guarantees the safe and stable operation of the unmanned ship while obtaining the maximum power generation capacity.