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

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 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 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 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.