16results about How to "Achieve structural stability" patented technology

This invention discloses a long-life pavement material for extreme and complex conditions and its preparation method. Modified asphalt pavement material is prepared using ultra-deeply decrosslinked rubber as the main raw material (with a content greater than 50%). Through specific processes and formulations, this pavement material retains excellent self-healing properties even under extreme low-temperature conditions (< -10 °C), with a healing efficiency greater than 50%, and a healing efficiency greater than 30% after aging, resulting in a long service life. This invention not only solves the problem of easy cracking in asphalt pavements and significantly improves their service life, but also enables the high-value resource utilization of waste rubber, resulting in significant environmental and economic benefits.

The utility model relates to semiconductor ion implantation equipment technical field, and disclose a kind of multi-functional high-efficiency boron fluoride ion implantation chamber, including support connecting mechanism, sealing assembly, support connecting mechanism contains chamber main body, internal injection component, multifunctional component assembly interface, upper sealing ring assembly groove, side sealing ring assembly groove, top connecting hole, top auxiliary sealing ring assembly groove, side fixed base, assembly interface sealing ring assembly groove, through slot, toughened glass sheet.The utility model is through the curved surface gradual change flow guide structure of internal injection component, boron fluoride ion distribution in chamber is accurately controlled, ion distribution uniformity is significantly improved, guarantee semiconductor material doping consistency, effectively improve device manufacturing yield, adapt high-precision semiconductor process demand.

The invention discloses a high-toughness flame-retardant cable protection tube and a preparation method thereof, and the preparation method comprises the following steps: S1, carrying out melt blending and dynamic vulcanization reaction on a mixture containing bimodal distribution high-density polyethylene, a polyolefin elastomer with a double long branch chain structure and a dynamic cross-linking agent at a first temperature interval and first shear strength, a pre-crosslinked base material is obtained; s2, cooling the pre-crosslinked base material to an interface anchoring temperature interval, adding the composite fiber system, and carrying out first-stage melt blending under medium shear strength; s3, heating the mixture obtained in the step S2 to a second temperature interval, increasing the temperature to second shear strength, carrying out second-stage high-shear melt blending, and adding a halogen-free intumescent flame-retardant system and a multi-walled carbon nanotube at the same time; and S4, orientation locking and gradient forming. The polyolefin elastomer with a double-long-branch-chain structure is introduced, and a step-by-step process is adopted, so that the low-temperature impact strength, the toughness and the flame-retardant grade of the material can be remarkably improved.

The application relates to the technical field of composite materials, and discloses a preparation method of a multilayer composite core body, which comprises the following steps: pretreatment, spraying treatment, core composite material preparation, compounding and curing forming; the surface of a fiber base layer is chemically modified through functional pretreatment, the wettability and reactivity of the fiber surface are improved, the different fiber layers with different functional characteristics can be more closely and stably combined, and therefore the integrity, reliability and durability of the multilayer composite core body structure are enhanced; through spraying treatment, functional particles are uniformly loaded on the surface of the fiber base layer in the form of a stable dispersion liquid; the functional particles have good compatibility and bonding force with the fiber base and the interlayer composite material after being treated and surface-modified in a specific manner, the core body is endowed with specific surface functions, the interface bonding between the fiber and the base is enhanced, and the functionality, uniformity and structural strength of the core body are improved.

The invention discloses a ternary positive electrode material, a preparation method thereof and a lithium ion battery. The general formula of the ternary positive electrode material is LiNixCoyMnzM1-x-y-zO2, x is larger than or equal to 0.6 and smaller than 1, y is larger than 0 and smaller than or equal to 0.2, z is larger than 0 and smaller than or equal to 0.2, M is a doping element, and M is selected from one or more of Nb, W, Ta, Ti, Hf, Mo, La, Ce and Zr; the ternary positive electrode material is tested through an X-ray energy disperse spectroscopy (EDS), the molar percentage content of M tested under the energy of 10 keV is recorded as P1, the molar percentage content of M tested under the energy of 20 keV is recorded as P2, and the ternary positive electrode material meets the condition that P2 / P1 is larger than 0.2 and smaller than 0.9. According to the method, deep transition metal ion doping of the surface layer of the ternary material is achieved, in the circulation process, the deep doped ions play a stronger rivet role in the structure, and long-term circulation structural stability can be achieved.

The invention discloses a current sensor for a train traction system and a signal processing circuit of the current sensor, and belongs to the field of current measurement, the current sensor comprises an outer shell and a cover plate, a through hole is reserved in the center of the outer shell, a rectangular-ambulatory-plane containing space is formed around the periphery of the through hole, and the cover plate is assembled on the containing space; a magnetic conduction unit and a circuit board are sequentially assembled in the containing space from top to bottom in the vertical direction, and two Hall elements are assembled on the circuit board. The two Hall elements are symmetrically arranged with the center of the through hole as the axis and are connected in parallel. According to the current sensor for the train traction system and the signal processing circuit of the current sensor provided by the invention, the measurement error caused by threading position deviation is effectively eliminated through the symmetrical parallel design of the double Hall elements and the bonding fixation and secondary mechanical fixing structure of the magnetic conduction unit and the circuit board; the stability of magnetic field induction and the signal acquisition precision are improved.

The utility model discloses a rapid metal shearing machine, which relates to the technical field of metal processing and is technically characterized by comprising a rack, a plurality of conveying rollers are rotatably arranged on the rack, the tops of the conveying rollers are positioned on the same horizontal plane, and a plurality of driving parts for driving the conveying rollers to rotate are arranged on the rack. A clamping and positioning assembly is arranged at the tail end, in the metal plate advancing direction, of the rack, a fixing frame is arranged above the clamping and positioning assembly, a metal cutting assembly is arranged on a top beam of the fixing frame, and a measuring assembly is arranged on one side of the fixing frame. The measuring assembly comprises a horizontal and straight telescopic piece, the extending direction of a movable part of the telescopic piece is the same as the advancing direction of the metal plate, a baffle is arranged on the movable part of the telescopic piece, a contact switch is arranged on the baffle in the direction facing the fixing frame, and a stroke control device used for controlling the stroke of the telescopic piece is arranged on the rack. The shearing device can quickly adjust the shearing amount and improve the precision of the shearing amount.

The application belongs to the technical field of lighting lamps, and particularly relates to a three-dimensional full-space wireless sliding table lamp with anti-dazzle and eye protection, which comprises a supporting frame, a lifting mechanism, a horizontal adjusting mechanism, a wireless sliding connecting assembly, a balance structure and a bidirectional light-emitting anti-dazzle assembly. A placing seat is fixedly connected to the bottom of the supporting frame, and a first sliding groove is formed in the vertical direction in the middle of the supporting frame. The lifting mechanism comprises an adjusting plate arranged at the end of a fixed cylinder, and a positioning rail is fixedly connected to the outer wall of the adjusting plate. The adjusting plate is clamped on the inner wall of the first sliding groove through the positioning rail. The LED upper lamp plate with a front inclination angle is arranged to effectively supplement the background light of the working environment. The bidirectional light-emitting mode significantly reduces the brightness ratio between the center of the working area and the surrounding environment, reduces the light-dark contrast, relieves the visual fatigue caused by frequent pupil adjustment of the human eye, and prevents myopia from the optical and physical aspects.

The invention relates to the technical field of cosmetics and functional biological materials, in particular to a fish collagen peptide with moisturizing and anti-aging functions and a preparation method thereof, and the fish collagen peptide comprises modified fish collagen peptide, 2-hydroxyethyl formate, glycerol, butanediol, potassium sorbate and triethanolamine. According to the modified fish collagen peptide, fish collagen peptide, gallic acid and acetaldehyde are subjected to polyphenol-aldehyde condensation to form a stable outer shell layer, so that the oxidation resistance and the structural stability are remarkably enhanced; after being cooperated with small-molecule 2-hydroxyethyl formate which is not used in the field, a compact hydrated network can be constructed, the moisture retention rate and the free radical scavenging rate are improved, and low viscosity fluctuation and no layering are kept under the acceleration condition. The preparation method is mild in preparation process and suitable for moisturizing and repairing cosmetics.

The invention discloses an amorphous iron-based silicon-phosphorus composite negative electrode material and a preparation method and application thereof, the raw materials of the iron-based silicon-phosphorus composite negative electrode material comprise an iron element, a silicon element, a phosphorus element and a carbon material, the molar ratio of the silicon element to the phosphorus element is 2: 1-1: 2, the molar ratio of the silicon element to the iron element is 8: 1-1: 2, and the mass ratio of an iron / silicon / phosphorus mixture to the carbon material is 5: 5-8: 2; the iron-based silicon phosphorus composite negative electrode material is prepared by a one-step or multi-step mechanical ball milling method. In the iron-based silicon phosphorus composite negative electrode material, the introduction of the iron elementary substance induces the microstructure to be disordered and reduces the lithium ion diffusion energy barrier, and meanwhile, the iron elementary substance and the lithium phosphide formed in situ respectively provide abundant electron and ion transmission paths and cooperatively buffer the huge volume deformation of the silicon negative electrode in the lithiation / delithiation process; furthermore, the electrochemical reversibility, the cycling stability and the rate capability of the material in the lithium storage process are effectively improved.

The application relates to the technical field of zinc oxide materials, and discloses zinc-based isomeric zinc oxide as well as a preparation method and application thereof. The zinc-based isomeric zinc oxide is used for ship antifouling paint, and the zinc-based isomeric zinc oxide comprises a crystal nucleus layer, the chemical general formula of the crystal nucleus layer is: [(ZnO) x (Si a , Mg b , Zn c , Ni d )Al2O 4z ] y , x=0.5-1.2, a=0.1-0.3, b=0.05-0.15, c=0.2-0.4, d=0.02-0.08, z=0.8-1.2, and y=0.9-1.1. The zinc-based isomeric zinc oxide contains zinc oxide phases and zinc-based spinel solid solution phases, the two phases form low-energy coherent interfaces through interface reconstruction, the release rate of zinc ions can be controlled, marine toxicity caused by explosive release can be avoided, marine organism adhesion can be reduced, the powdering degree of the antifouling paint coating can be reduced, and the corrosion current density can be reduced, and therefore the zinc-based isomeric zinc oxide is suitable for environmentally-friendly ship antifouling paint.

The utility model discloses a rear shell adaptive device convenient for assembling a wall clock shell, which relates to the technical field of rear shell adaptive devices, and comprises a shell, an observation opening is formed in the upper end of the shell, an acrylic plate is mounted in the observation opening through glue, a clamping groove is formed in the lower end of the shell, a bottom plate is mounted at the lower end of the shell, and a telescopic adjusting mechanism is mounted on the bottom plate. A clamping mechanism is assembled on the telescopic adjusting mechanism; according to the utility model, through mutual cooperation of the second telescopic spring and the push plate, the device is suitable for housing clamping grooves with different sizes, the versatility of the device is improved, the function of reducing a large amount of manpower and time cost is realized, through mutual cooperation of the clamping block and the first telescopic spring, the stability of the clamped wall clock is facilitated, and the practicability of the device is improved. Therefore, the accuracy of component assembly is improved, the overall structural stability and attractiveness of the wall clock are realized, and finally the problems of tedious operation steps and inaccurate component assembly are solved.

According to the IPM lead frame and the packaging module, each frame unit comprises a first base island area and a second base island area which are spaced, a plurality of base islands are sequentially arranged in the first base island area and the second base island area in the length direction of the frame unit at intervals, a plurality of pins are sequentially arranged on the two sides of the frame unit in the length direction at intervals, and the number of the pins on the two sides is different; in the first base island area, a plurality of base islands are connected through first connecting ribs, and the rest of the base islands are respectively connected with a pin positioned on one side of the frame unit; in the second base island area, a plurality of base islands are connected through second connecting ribs, and the rest of the base islands are respectively connected with a pin positioned on the other side of the frame unit; the packaging module comprises an injection molding body and an IPM lead frame packaged in the injection molding body, and a chip is bonded on the IPM lead frame. According to the utility model, the structural stability and the electrical isolation effect of the layout in a compact space are realized, and the asymmetric pin layout arrangement is adopted, so that the integrated packaging of the power module is facilitated, and the power module can adapt to two packaging appearances of SOP23 and DIP23.

The utility model relates to the technical field of thermal -insulation wall, disclose a kind of novel energy-saving thermal -insulation wall structure, including two single block wall, the right end of single block wall is equipped with chuck one, the left end of single block wall is equipped with chuck two, the left and right sides of single block wall are equipped with multiple reinforcing holes, the inside of reinforcing hole is detachably connected with reinforcing block, the inside of single block wall is provided with base wall, the bottom of base wall is fixedly connected with mortar screed, the bottom of base wall is fixedly connected with adhesive layer.In the utility model, by the thermal -insulation wall is designed as prefabricated module, cooperate mortise and tenon structure and install quickly, both ensure convenient installation, and can be through elastic node absorption temperature deformation and seismic load, in addition, through wall structure through each layer material and function, realize the environmental protection of wall in solid waste utilization and no harmful emission, the thermal -insulation of low thermal conductivity coefficient continuous covering.

The utility model relates to card storage structure technical field, especially in a kind of card box of bottom push control, including shell, it is single-face opening square structure setting;Button, it is set in the symmetry end of the open end surface of shell, and the button makes vertical direction movement;Push structure, with the button linkage setting, and the push structure is built-in in the shell;When the button moves towards the open end surface of shell, the push structure moves towards the open end surface of shell and makes lifting movement, and card in the shell is ejected from the open end surface of shell.The utility model solves the problem that the existing business card box with corresponding side push structure is set, and the push structure is set in the side of business card box, which is prone to accidental touch during storage or handheld, causing the business card to be ejected or even dropped, and making the business card box inconvenient to use.

The invention relates to the technical field of oilfield chemical additives, and discloses a high-temperature slow-release oilfield acidifier and a preparation method thereof. The acidifying agent comprises the following components in parts by weight: 10-20 parts of modified polyaryletherketone, 20-35 parts of an organic coated acid source, 2-8 parts of a high-temperature stable cross-linking agent, 1-5 parts of a nonionic surfactant, 5-10 parts of a solubilizer and 30-60 parts of a water phase system. The modified polyaryletherketone is sulfonated, grafted with polyether amine and cross-linked with triethoxy borate to form a microporous network shell layer, so that core-shell coating of an acid source is realized. The preparation method sequentially comprises three steps of sulfonating polyaryletherketone, grafting polyether amine and crosslinking boric acid ester, and then emulsifying an acid source, a surfactant, a solubilizer and a water phase. The acidifying agent can be continuously controlled within 180-250 min in an environment of 150 DEG C or above, has the advantages of being large in penetration depth, low in metal corrosion rate and good in dispersion stability, and is suitable for acidification yield increase operation of deep high-temperature carbonate reservoirs.