31results about How to "Process reversible" patented technology

The invention discloses a high-speed train secondary suspension semi-automatic control device. The device comprises an air spring mechanism and a control device mechanism; the control mechanism comprises a coupling assembly, a cylinder body assembly and a fixing base; the cylinder body assembly comprises a cylinder barrel, the interior of the cylinder barrel is filled with magnetorheological fluid, and the interior of the cylinder barrel is sequentially provided with a piston rod I, a cylinder cover, a damping piston I, a damping piston II, a damping inner cylinder sleeve, a piston rod II anda cylinder bottom cover from top to bottom; the damping inner cylinder sleeve is a blind hole sleeve structure with an open upper end and a closed lower end, and an excitation coil is arranged on theouter cylindrical surface of the damping inner cylinder sleeve in the circumferential direction; and the damping piston II which is in clearance fit with the inner diameter dimension of the damping inner cylinder sleeve is arranged in the damping inner cylinder sleeve, and an excitation coil is arranged on the outer cylindrical surface of the damping piston II in the circumferential direction. According to the device, the opening degree of a throttling hole of an air spring system can be adaptively adjusted, the structure complexity is reduced on the premise of improving the adaptability of atrain to different operating conditions, and then the manufacturing cost is reduced.

The invention discloses an intelligent composite material based on crystal photo-induced phase transformation and a preparation method thereof. A polymer film is used as a flexible substrate, the surface of the flexible substrate is subjected to friction treatment to obtain a micro groove structure, the surface of the substrate is coated with a micromolecular photoresponse crystal material capable of generating photo-induced phase transformation, and annealing is carried out to obtain a photically driven composite film capable of converting optical energy into mechanical energy. After being cut, the composite film can generate specific deformation, such as bending, curling, spiraling and moving, under specific wavelength illumination, and the process is reversible. The preparation method is simple, and the material is easy to obtain, large in deformation, high in response speed, controllable, functional and wide in application range, can be used for a flexible environment such as muscles and joints of an artificial mechanical system and can also be applied to the field of micromechanical systems.

The invention provides a debugging and measuring device and a method for measuring and debugging resistance of a thermal head. The debugging and measuring device is used for debugging and measuring resistance of the thermal head, the debugging and measuring device comprises a controller, a power assembly connected with the thermal head and the controller, and a resistance tester connected with thethermal head and the controller, wherein the power assembly is provided with a low voltage pulse power and a high voltage pulse power. The debugging and measuring device is advantaged in that throughcombination of the pulse voltage high-frequency discharge method and the pulse voltage high-temperature oxidation method, bi-directional resistance debugging of a heating resistor is realized, the heating resistor of the thick film thermal head is made to have good resistance consistency, high-precision requirement is satisfied, and the debugging and measuring device has advantages of simple structure, convenient operation, reversible process, reduced production cost and greatly-improved product quality and production efficiency.

The invention discloses a rigidity-adjustable and damping-adjustable type high-speed train semi-active air suspension device comprising an air spring mechanism and a control device mechanism. The control mechanism comprises a connection assembly, a cylinder body assembly and a fixed base. The cylinder body assembly comprises a cylinder barrel full filled with magnetorheological fluid. A piston rod I, a cylinder head, a damping piston I, a damping piston II, a piston rod II, a supporting spring, a partition plate, a damping piston III, a piston rod III and a cylinder bottom cover are sequentially arranged in the cylinder barrel from top to bottom. The outer cylinder faces of the damping piston I and the damping piston III are each provided with an inwards-concave structure in the circumferential direction, and exciting windings are wound around the outer cylinder faces of the damping piston I and the damping piston III in the peripheral direction correspondingly. The inner cylinder face, in clearance fit with the piston rod I, of the damping piston II is provided with an inwards-concave structure in the peripheral direction, and an exciting winding is wound around the inner cylinder face, in clearance fit with the piston rod I, of the damping piston II in the peripheral direction. By means of the rigidity-adjustable and damping-adjustable type high-speed train semi-active air suspension device, continuous regulation of the throttling hole opening degree between a main air chamber and an additional air chamber of the air spring can be achieved, the adaptability of a high-speed train to different operation working conditions can be improved, and the rigidity-adjustable and damping-adjustable type high-speed train semi-active air suspension device is particularly suitable for high-speed train secondary suspension systems.

The invention relates to a preparation method of a conductive photon crystal aquagel. The preparation method comprises the following steps: dissolving N-isopropyl acrylamide, N,N-methylene-bis acrylamide and acrylic acid in ultrapure water to obtain a reaction solution, heating to 60-80 DEG C and keeping for 15-45 minutes under the conditions of stirring and condensation reflux in an argon protective atmosphere, adding a potassium persulfate solution to react for 4-6 hours to obtain an emulsion, cooling to room temperature in the argon protective atmosphere, centrifugating to obtain PNIPAM-Co-AAc colloid microspheres, and dispersing the PNIPAM-Co-AAc colloid microspheres in ultrapure water to obtain a colloid microsphere dispersion solution; and uniformly mixing the colloid microsphere dispersion solution and a poly(3,4-vinyldioxythienyl)-polystyrolsulfonic acid (PEDOT / PSS) water dispersion solution, and carrying out self-assembly to obtain the conductive photon crystal aquagel. The method is simple and easy to implement, and has important values for the preparation of the conductive photon crystal aquagel.

The application relates to a step-by-step clamping valve prosthesis and its delivery system. The valve prosthesis includes a stent body and a clamping body. The stent body has a channel for blood circulation, and the clamping body includes a first clamping body and a clamping body. The second clamping body, one end of the first clamping body is connected to the support body, and the other end is a free end, the second clamping body is connected to the first clamping body, and the clamping body has three forms from compression to complete release, The first form is that both the first clamping body and the second clamping body are compressed and restricted; the second form is that the second clamping body is restricted, and the first clamping body extends along the radial direction of the stent body to reach the valve leaflet and between the heart walls; the third shape is that the second clamping body protrudes from the first clamping body, extends along the circumference of the stent body and abuts against the outer surface of the stent body, and the autogenous valve leaflet and adjacent tissues are clamped at the second Between the second clamping body, the first clamping body and the support body, the contact surface between the valve prosthesis and the autologous tissue can be increased, the position stability in the heart can be improved, and the success rate of the operation can be improved.

The invention discloses an electrostrictive reversible hydrogen storage structure method. A hydrogen storage material adopted by the electrostrictive reversible hydrogen storage method has a multi-layer sandwich structure. A surface layer of the multi-layer sandwich structure is a catalyst film for decomposing a hydrogen molecule H2 into hydrogen atoms. A second layer of the multi-layer sandwich structure is a pure Mg film or an Mg-based multi-component low alloy film. A third layer of the multi-layer sandwich structure is an electrostrictive material film. The second layer and the third layer are arranged alternately in order along an inward direction. A direction and intensity variable electric field is applied above the multi-layer sandwich structure. Through the applied direction and intensity variable electric field, hydrogen storage and releasing of Mg and Mg alloys are controlled. Through electrostrictive effects produced by electrostrictive films under electric field effects, Mg and Mg alloy films produce stress sigma to change a lattice constant and even a crystal structure, reduce hydrogen storage and releasing temperatures of Mg and Mg alloys and accelerate a reaction speed. Control of the electrostrictive reversible hydrogen storage method is easy and a process of the electrostrictive reversible hydrogen storage method is reversible. The the electrostrictive reversible hydrogen storage method can greatly reduce hydrogen storage and releasing temperatures of a hydrogen battery, wherein the hydrogen storage and releasing temperatures are below 100 DEG C and even reach room temperature, reduce energy consumption and improve efficiency.

The invention relates to a single-upright telescopic carriage applied to an aerial conveyer and other conveyers for transferring. According to the technical scheme provided by the invention, the single-upright telescopic carriage comprises an upright and a carriage mechanism and is characterized in that the carriage mechanism is U-shaped and comprises the upright; the inner sides of two sides of the carriage mechanism are respectively provided with a guide wheel assembly, the upright is provided with a vertical guide rail correspondingly matched with the guide wheel assemblies on two sides ofthe carriage mechanism, and the carriage mechanism slides up and down on the upright through the guide wheel assemblies. The invention has a compact and reasonable structure, saves space and can avoid generating interference with adjacent equipment because a telescopic frame playing a supporting role at the bottom can be freely telescopic. The invention can be used for dual-direction shift of airand ground, and has the advantages of reversible process, work safety and reliability and high automaticity.

The invention relates to a carriage follower mechanism, which comprises a vertical track, a carriage, an operation track of a follow framework, the follow framework, an operation track of a telescopic framework, the telescopic framework and a link span. The vertical track is fixedly installed. The carriage is connected to the vertical track through a lifting road wheel in a sliding way. The operation track of the follow framework is fixed to the bottom end of the carriage. The follow framework is connected to the follow framework operation track through a follow framework road wheel in a sliding way. The left-right located operation track of the telescopic framework is fixedly installed to the bottom end of the follower framework. The telescopic framework is connected to the operation track of the telescopic framework through a telescopic framework road wheel in a sliding way. A dialing plate air cylinder is connected to the bottom end part of the telescopic framework. A dialing plateis fixedly installed to the end of the dialing plate air cylinder piston rod. The link span is also fixedly installed on the telescopic framework. A support block is arranged at the end of the link span. The invention effectively overcomes the following defects: an aerial conveyer can only be laid on a ground stationary conveyer; the vehicle body cannot be accurately laid on the ground conveyer support.