13results about How to "Large application space" patented technology

The invention relates to a rigid spiro compound and a preparation method and application thereof.The preparation method comprises the steps that 6-methylene-androstane-4-ene-3, 17-diketone (V) is dissolved in a mixed solution of dichloromethane and trifluoroacetic acid, reaction and reduced pressure distillation are conducted at the temperature of 20-25 DEG C, then extraction washing and distillation are conducted, a rigid spiro compound crude product can be obtained, and the rigid spiro compound is obtained. The crude product can be subjected to column chromatography separation and purification to obtain a refined rigid spiro compound (I). By adopting the preparation method, the friction and wear properties of the base oil are remarkably improved, and the base oil has lower friction coefficient and wear scar diameter, and has good application prospect as an antifriction and wear-resistant additive.

The invention provides a preparation method of zirconium oxide microspheres for polishing, which comprises the following steps: preparing slurry A containing N, N '-methylene bisacrylamide, acrylamide and a dispersing agent, mixing 3Y-ZrO2 powder and the slurry A, performing ball milling, and adding a defoaming agent and an initiator to obtain slurry B; adding the slurry B into the oil phase C for mixing to obtain a pre-emulsion D, adding the pre-emulsion D into an emulsifying device, starting cooling and stirring, enabling the pre-emulsion to pass through an aluminum oxide film under nitrogen pressure, obtaining emulsion liquid drops under the action of magnetic stirring, enabling the liquid drops to be in curing liquid to obtain a microsphere precursor, then starting a catalyst adding pump, and carrying out solid-liquid separation to obtain the catalyst. Carrying out low-temperature pre-sintering and high-temperature sintering on the biscuit, so as to obtain the zirconium oxide microspheres of 30-50 microns. The method disclosed by the invention is relatively simple to operate, and the zirconia microspheres have a great application space in the fields of grinding and dispersing of high-added-value ceramics with very high product purity requirements, biochemistry, medical industry and the like.

The utility model provides a kind of functional film, belong to functional film technical field.The utility model's functional film includes base material layer and the closed cavity inlay in the base material layer.The utility model's functional film only includes a layer of base material layer, more light and thin, optical absorption is lower, heat transfer performance is better;And relative to laminated structure, there is no interface mismatch risk, low in cost, there is no laminated interface, avoid delamination caused by moisture penetration under high temperature and high humidity environment, higher environmental aging resistance, and need not laminating.The utility model's functional film in solar cell field, can improve the structural stability of heat dissipation and packaging, improve the power generation efficiency of solar module, long-term working life and environmental tolerance, in display field, its light and thin, flexible and non-heterogeneous characteristics make it have good application space in precision optical device.

The invention discloses an automatic electromagnetic shot cleaning device and a shot cleaning method after heat treatment shot blasting of a wide and thick plate, and mainly relates to the technical field of intelligent control of steel heat treatment. Comprising a frame, the frame is a main body for supporting the shot cleaning device, is in the form of a gantry crane, stretches across a rear roller way of the heat treatment shot blasting machine and is used for supporting the whole shot cleaning device, the width of the frame is larger than that of the heat treatment roller way, and a hopper is arranged on one side of the frame and used for receiving material shots. A lifting unit, an electromagnetic pill cleaning unit, a pill groove rotating unit, a compressed air blowing unit and an automatic control unit are respectively arranged on brackets on two sides of the frame. The method has the beneficial effects that the problem that shots remain on a steel plate after shot blasting in a wide and thick plate heat treatment area is solved, and the surface quality of the steel plate is improved.

The invention relates to a damage disease identification method for a wind-shield wall structure, and belongs to the field of nondestructive testing of the wind-shield wall structure, and the method comprises the following steps: respectively applying vibration excitation to the wind-shield wall structure without damage disease and the wind-shield wall structure in an in-service state, and collecting dynamic response signals of the two wind-shield wall structures by using a sensor; virtual pulse response function signals SU and SD of the wind-shield wall structure in the in-service state and without damage diseases are calculated; subtraction is carried out on the SU and the SD to obtain a virtual pulse response function signal deviation S; obtaining a sub-band signal sequence {S} of S based on wavelet packet decomposition, and calculating a wavelet packet frequency band energy spectrum E < Somega > and an energy ratio spectrum ER < Somega > of {S}; constructing an improved wavelet packet frequency band energy ratio spectrum ER S; creating a wavelet packet characteristic frequency band vector ER < S > (P + 1) and a damage disease index sigma < ER >; and identifying the damage disease of the wind-shield wall structure in the in-service state through the sigma ER.

The invention discloses a connecting rod folding type shock insulation groove cover plate device which comprises an upper folding cover plate and a supporting assembly. Each supporting assembly comprises a fixed linear bearing A, a fixed linear bearing B, a polished shaft, a movable linear bearing, an oblique folding mechanism and a vertical supporting mechanism, and the polished shaft sequentially penetrates through center holes formed in the fixed linear bearing A, the movable linear bearing, the vertical supporting mechanism and the fixed linear bearing B; the movable linear bearing and the vertical supporting mechanism can slide between the fixed linear bearing A and the fixed linear bearing B along the optical axis; the optical shaft can slide in the fixed linear bearing A; the two upper folding cover plates jointly support the top of the vertical supporting mechanism and are hinged to the vertical supporting mechanism through a pin shaft. One end of the oblique folding mechanism is hinged to the upper folding cover plate through a pin shaft, and the other end of the oblique folding mechanism is hinged to the fixed linear bearing B through a pin shaft. According to the connecting rod folding type shock insulation groove cover plate device, it can be guaranteed that a shock insulation key technology is achieved, and quick recovery can be achieved.

The present application relates to a kind of surface carbonation modified iron-doped nickel oxide preparation method and the method of decomposing ozone, the preparation method comprises the following steps: adding precipitant to the aqueous solution of nickel-containing iron precursor, hydrothermal reaction is carried out, precursor material nickel-iron layered double hydroxide is obtained, calcination, the aqueous solution of the obtained iron-doped nickel oxide and modifier is mixed uniformly, hydrothermal reaction is carried out;Wherein, the modifier is one or more of urea, ammonium carbonate, ammonium bicarbonate, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, lithium carbonate, lithium bicarbonate, sodium hydroxide, potassium hydroxide and lithium hydroxide.The preparation method of the present application is simple, does not need special condition, and the iron-doped nickel oxide catalyst modified by surface carbonation is rich in active site, and can show high and stable ozone decomposition efficiency in high humidity or extremely high humidity environment.

The present application relates to a safety early warning method for in-service wind retaining wall structure, and belongs to the technical field of wind retaining wall health diagnosis and safety early warning. The method comprises the following steps: S1: exciting the wind retaining wall to generate a dynamic response signal; S2: transmitting the signal to a computer; S3: the computer processes the collected signal to obtain a virtual impulse response function signal; S4: wavelet packet decomposition is performed on the virtual impulse response function signal to create an improved wavelet packet band energy ratio spectrum; S5: a second improved wavelet packet band energy ratio spectrum is created; S6: a wavelet packet characteristic frequency band vector, a characteristic vector and an early warning index are constructed; S7: the internal relationship between the early warning index and the dynamic elastic modulus loss rate of the wind retaining wall is analyzed, and a quantitative relationship between the early warning index and the safety state of the wind retaining wall is established; when the early warning index reaches a limit value, the wind retaining wall enters a critical safety state. The present application early warns the safety state of the wind retaining wall through the early warning index, and has the characteristics of convenience, efficiency, intelligence and the like.

The invention discloses a method for preparing a high-quality SnO2 amorphous-nanorod heterogeneous phase through ALD and application of the high-quality SnO2 amorphous-nanorod heterogeneous phase, and relates to the technical field of perovskite solar cells, the method comprises the following steps: S1, providing a substrate and pretreating the substrate to obtain a pretreated substrate; s2, spin-coating a tin oxide nanocrystalline solution on the pretreated substrate to obtain a pretreated film layer; s3, performing plasma sputtering etching on the surface of the pretreated film layer to obtain a first treated part; and S4, the first treated part is put into ALD to be preheated, tetraethyltin and H2O2 serve as reaction sources, tin oxide nanocrystals grow on the surface of the first treated part, the reaction temperature and the deposition speed of a cavity are controlled, the tin oxide amorphous-nanorod heterogeneous phase is obtained, and preparation is completed. The invention further comprises application of the method, and the method is used for preparing the perovskite solar cell. According to the method, the preparation process is simplified, the method is environment-friendly, the internal defects of the prepared heterogeneous phase are few, and the device performance is more excellent.

The present invention is a side-drilling large-diameter casing straightener and its completion pipe string and construction method. The casing straightener in the present invention includes an upper joint, a center pipe and a lower joint. The cylinder body of the straightening cylinder is a rib-shaped cylinder body. The straightening cylinder and the driving cylinder are sleeved on the outside of the center pipe. The timing limit cylinder is installed between the center pipe and the lower joint. The upper part of the center pipe is connected to the upper joint, the lower part of the driving cylinder is connected to the lower joint, and the timing limit cylinder is squeezed between the center pipe and the lower joint. The completion pipe string in the present invention is provided with a floating shoe, a floating hoop and a casing hydraulic hanger. The floating shoe, the floating hoop and the casing hydraulic hanger are connected by casing from bottom to top and lowered into the bottom of the side-drilling well by a drill pipe or an oil pipe. In the completion pipe string above the floating hoop, the side-drilling large-diameter casing straightener is connected by casing according to the design requirements of the completion pipe string. The process of the present invention is simple and reliable, effectively prolongs the service life of the side-drilling well and can produce significant economic benefits.

The application discloses a bidirectional damping adjustable hydraulic damping cylinder with self-resetting function, which comprises a cylinder barrel, a gas cavity and an oil cavity arranged in the cylinder barrel, an adjusting mechanism arranged on the cylinder barrel and used for adjusting the damping cylinder, self-resetting and bidirectional locking or unidirectional locking, a pressure storage mechanism arranged on the cylinder barrel and used for storing gas pressure in the gas cavity of the cylinder barrel, and a guiding mechanism arranged on the cylinder barrel, wherein the damping cylinder is formed by integrating various valves and a piston type pressure accumulator to realize the bidirectional damping adjustable requirement of the damping cylinder and has the self-resetting function, and the damping cylinder can be locked at an arbitrary position in a unidirectional mode or an arbitrary position in a bidirectional mode to present unidirectional or bidirectional rigid characteristics, the self-resetting function of the cylinder is realized through the area ratio relationship of the two cavities, the applicability is wider, and the application space is larger.

The present invention provides a liquid metal flexible composite film and a preparation method and application thereof. The liquid metal flexible composite film comprises, from top to bottom, a high radiation layer; a liquid metal layer; and an encapsulation protection layer. The liquid metal flexible composite film provided by the present invention can not only reflect most of the sunlight and near-infrared waves back to the atmosphere, but also exchange heat with outer space (the average temperature in space is ‑270.3°C) through an "atmospheric window", thereby achieving a passive cooling effect in space. The liquid metal flexible composite film provided by the present invention can be applied to the surfaces of cooling spaces such as various housing buildings, and has great application potential in fields such as building energy conservation.

The invention discloses an assembly type grouting reaming steel pile of a transmission tower in a soft soil area. The assembly type grouting reaming steel pile comprises a screw-in assembly, a plurality of reaming assemblies, a plurality of connecting assemblies, a top assembly, a transmission device and a powerful electromagnet. The screw-in assembly is of a hollow structure, a spiral anchor disc is arranged outside the screw-in assembly, a first clamping groove connected with the bottom of the transmission device in a clamped mode is formed in the screw-in assembly, and a powerful electromagnet is arranged at the top of the screw-in assembly. The bottom of a first connecting piece of the reaming assembly is connected with the top of a limiting pressure-bearing device, the bottom of the limiting pressure-bearing device is connected with the top of a second connecting piece, one end of each first steel arm assembly is movably connected with the bottom of the corresponding first connecting piece, and the other end of each first steel arm assembly is hinged to one end of the corresponding second steel arm assembly. The other end of the second steel arm assembly is movably connected with the top of the second connecting piece, and the first steel arm assembly and the second steel arm assembly are arranged in a V shape. Construction can be conveniently conducted in the soft soil area, and construction is convenient.