308results about How to "Tightly bound" patented technology

The invention relates to the technical field of stainless steel pipe fittings, in particular to a high-performance anti-corrosion stainless steel pipe fitting and a preparation method thereof.The preparation method of the high-performance anti-corrosion stainless steel pipe fitting comprises the following steps that S1, mechanical polishing is conducted; s2, removing oil; s3, acid treatment is conducted, specifically, the stainless steel pipe fitting blank obtained after oil removal is soaked in an acid surfactant solution for 5-10 min, and the stainless steel pipe fitting blank is taken out, washed with water and dried; the solute in the acidic surfactant solution comprises acid and a cationic surfactant; s4, adsorption treatment is conducted, specifically, the stainless steel pipe obtained after acid treatment is soaked in an adsorption solution containing graphene oxide for 4-10 min, and the stainless steel pipe is taken out and dried; and S5, anti-corrosion coating treatment is conducted, specifically, anti-corrosion coating is sprayed to the surface of the stainless steel pipe fitting blank, drying is conducted, and the high-performance anti-corrosion stainless steel pipe fitting is obtained. The method has the advantage that the anti-corrosion performance of the organic anti-corrosion coating can be improved.

The invention provides a nucleic acid probe, a primer group, a kit, a detection method and application, and relates to the technical field of biology. The nucleotide sequence of the nucleic acid probe is as shown in SEQ ID NO. 1; wherein the 3'end of the nucleic acid probe is modified with MGB, and locked nucleic acid is modified at a base position corresponding to the difference between the swine fever wild strain and the swine fever vaccine strain in the nucleotide sequence. According to the nucleic acid probe, a specific sequence is utilized to precisely target a swine fever wild strain, and locked nucleic acid modification is introduced at a differential site, so that the recognition capability on single-base mismatch is remarkably enhanced, non-specific binding to a vaccine strain is thoroughly blocked, and false positive interference is eliminated; and 3 '-terminal MGB modification is matched to improve the binding stability and sensitivity, so that the efficient and accurate identification of the swine fever wild strain under the immune background is ensured.

The utility model provides a kind of combined wall charger with wire drawing reel, comprising: wall charger body and wire drawing reel;Magnetic element is fixedly installed in one side inside wire drawing reel, and one side inside wall charger body is fixedly installed with ferrous component, and ferrous component is used to connect with magnetic element to limit the combination between wall charger body and wire drawing reel.The utility model provides a kind of combined wall charger with wire drawing reel, by the storage mode that magnetic element adsorbs wire drawing reel on the surface of wall charger body, wire drawing reel can orderly store charging wire, the length of charging wire is conveniently controlled by pulling mode, the winding of charging wire is avoided, and wire drawing reel can be adsorbed on the surface of wall charger body greatly improve its use convenience, without additional installation space, directly utilize wall charger surface, realize the close combination of charging and storage function, make charging area more neat and orderly, meet the double needs of user to electronic equipment charging convenience and space neatness.

The invention relates to the technical field of road construction, and provides a road maintenance crack repairing and flattening device which comprises a base, an inclined tamping assembly is arranged in the middle of the bottom end of the base and comprises a fixing plate fixedly arranged at the bottom end of the base, and a first driving chain wheel and two first rotating shafts are arranged on one side of the fixing plate; first connecting rods are arranged on the outer surfaces of the first rotating shafts, second connecting rods are arranged at the bottom end of the base, a third rotating shaft is arranged at the lower ends of the two first connecting rods, a fourth rotating shaft is arranged at the lower ends of the two second connecting rods, and mounting plates are arranged at one ends of the third rotating shaft and the fourth rotating shaft; arc-shaped plates capable of moving in an opening and closing mode are symmetrically arranged at the lower end of the mounting plate. According to the crack repairing and flattening device for road maintenance, the V-shaped structure capable of being adjusted to be opened and closed is matched with the inclined tamping assembly, multidirectional compaction and rapid surface leveling of a crack repairing material are achieved, and the compactness of a repairing layer and the flatness of a road surface are improved.

The invention relates to the field of buildings, in particular to a reinforced concrete member manufacturing method and a post-cracking bending rigidity calculation method.The reinforced concrete member manufacturing method comprises the following steps that S1, a steel reinforcement framework is fixed to the set position of a concrete pouring mold, and a reinforced area of a concrete body is determined; s2, determining structural parameters of the reinforcing grooves and the reinforcing ribs; s3, the foam board is cut to enable the shape of the foam board to correspond to the shape of the reinforcing groove, and the foam board is fixed to the position, corresponding to the reinforcing area, in the concrete pouring mold; s4, concrete is poured into the concrete pouring mold, a concrete main body is formed after the concrete is cured and solidified, and after the concrete main body is demolded, the internal foam plate is emptied to form a reinforcing groove; and S5, reinforcing ribs are inserted into the reinforcing grooves, the reinforcing grooves are filled with UHPC, and machining of the concrete member is completed after maintenance. The bearing capacity and durability of the reinforcing system are improved, meanwhile, the glass fiber reinforced resin composite material in the retired wind power blade is applied to the reinforcing system, and the reinforcing cost is reduced.

The utility model relates to the technical field of foam, and discloses composite foam for household products, which comprises a surface layer, the bottom of the surface layer is sequentially provided with a first functional layer, a buffer layer, a second functional layer and a bottom layer from top to bottom, and the surface layer, the first functional layer, the buffer layer, the second functional layer and the bottom layer are laminated and compounded through hot melt adhesive films. According to the composite foamed plastic for the household product, through the arrangement of the surface layer, the first functional layer, the buffer layer, the second functional layer and the bottom layer, the functions of antibiosis, mildew prevention, heat insulation, sound insulation, buffering, water resistance, moisture resistance, skid resistance and the like can be integrated, so that the multi-dimensional requirements for comfort, safety, sanitation and the like in the household environment can be met, and the use experience of the household product is comprehensively improved; and meanwhile, the layers are laminated and compounded through the hot melt adhesive films, so that the combination is tighter, the layering phenomenon is effectively avoided, and the quality and the reliability of the product are improved.

The utility model discloses an integrated luggage lock integrating a fingerprint lock, a key lock and a coded lock, which comprises a lock box, a lock hook, a lock catch matched with the lock hook for locking, the fingerprint lock, the key lock, the mechanical coded lock, an unlocking key and a rotating piece provided with the lock hook, a motor of the fingerprint lock is connected with a translation piece with one end extending to the side of a rotating piece, the translation piece is driven by the motor to translate to push the rotating piece to rotate during unlocking, a push block located beside the rotating piece is arranged at the inner end of a key lock cylinder of the key lock, and the key lock cylinder is rotated during unlocking to push the rotating piece to rotate through the push block. One end of a movable lock piece of the mechanical coded lock extends to the side of a rotating piece, and when the mechanical coded lock is unlocked by a correct password, an unlocking key is pressed to push the movable lock piece to move so as to push the rotating piece to rotate. According to the luggage unlocking device, the luggage can be unlocked in various modes, and the situation that unlocking is difficult does not occur basically.

The invention belongs to the technical field of algal polysaccharide extraction, and discloses a modification extraction method of algal asparagus polysaccharide and a method for preparing a lutein coating by using the algal asparagus polysaccharide. The modified extraction method comprises the following steps: extracting gracilaria lemaneiformis powder with a weak base solution, enabling lactide and polysaccharide to be subjected to grafting reaction through a redox initiation system under the assistance of ultrasonic waves, and then separating out a first polysaccharide component with high emulsibility and a second polysaccharide component with high gel property through graded alcohol precipitation. The two obtained functional components are used for coating xanthophyll, specifically, the first polysaccharide component emulsifies a xanthophyll oil phase to form a pre-emulsion, the second polysaccharide component is compounded with gelatin, a composite coacervate is formed on an oil drop interface by adjusting the pH value, and finally drying and curing are conducted. According to the method, two modified polysaccharides with definite functions can be synchronously obtained, the prepared xanthophyll coating is high in encapsulation efficiency, good in storage and processing stability and excellent in water dispersibility, and the problems that xanthophyll is unstable and difficult to apply are effectively solved.

The present application relates to a kind of for locking steel pipe pile cofferdam water stop pressure grouting device, including a support frame, pressure grouting pipe, annular air bag and inflation pipe;The support frame includes upper support plate and lower support plate, there is a certain interval between upper support plate and lower support plate and welding connecting rod, multiple buckles are arranged in equidistance rotation on the edge of upper support plate, and the lower end of buckle is located below upper support plate and is inclined to the outside of upper support plate upwards;Pressure grouting pipe vertically penetrates upper support plate and lower support plate;Annular air bag is located between the upper support plate and lower support plate of support frame, annular air bag can extrude the lower end of buckle to rotate to the outside of upper support plate in inflation state, and its annular outside surface protrudes to the outside of upper support plate and lower support plate;Inflation pipe penetrates upper support plate and inflates and deflates air bag.The present application can be combined with rock by the way of high-pressure grouting to press cement slurry from inside steel pipe pile to outside steel pipe pile, so that steel pipe pile is closely combined with rock, and the water stop effect of steel pipe pile cofferdam is improved.

The utility model discloses process equipment for preparing amorphous polyaryletherketone carbon fiber prepreg by a solution method, which comprises a microwave solvent removing device which comprises a solvent removing cavity and a plurality of groups of glue scraping rollers arranged in the solvent removing cavity, the multiple sets of glue scraping rollers are sequentially arranged in the solvent removing cavity in the conveying direction of the carbon fibers, and the height of the glue scraping roller close to an inlet of the solvent removing cavity in the vertical direction is larger than or equal to the height of the adjacent glue scraping roller close to an outlet of the solvent removing cavity in the vertical direction. A plurality of groups of glue scraping rollers are designed at the same time, so that the retention time of the prepreg in the microwave solvent removing device is controllable, a solvent is fully volatilized, the height of the glue scraping rollers in the vertical direction is limited, redundant resin on the prepreg flows and is enriched, certain pressure is applied through the glue scraping rollers, the redundant resin is removed, the resin content is controllable, and the resin content is improved. Meanwhile, the combination with fibers is tighter, and the quality of the prepreg is obviously improved.

This utility model relates to the field of environmentally friendly gas cabinet technology, specifically an intelligent heat dissipation and gas leakage compensation system for an environmentally friendly gas cabinet. It is detachably installed on the back panel of the gas tank of the environmentally friendly gas cabinet and includes an integrated backpack. The integrated backpack includes a cabinet body with multiple chambers. A gas replenishment structure is connected to the gas tank replenishment valve on the gas tank of the environmentally friendly gas cabinet. The heat dissipation structure includes a semiconductor cooling chip and a water-cooled aluminum plate. The two sides of the semiconductor cooling chip are in contact with the back panel of the gas tank and the water-cooled aluminum plate, respectively. A fan-driven cooling unit is installed on the side of the water-cooled aluminum plate away from the semiconductor cooling chip. When the semiconductor cooling chip is energized, it transfers heat from the back panel of the gas tank to the water-cooled aluminum plate, rapidly cooling the inside of the gas tank. Simultaneously, the fan-driven cooling unit provides air cooling. The air cooling and water cooling work together to ensure stable temperature control inside the gas tank.

The conductive light shield for a probe station of the present invention for cable connection pin clips includes a conductive shield body and a light-absorbing layer. The conductive shield body covers the outside of the pin clip on the probe station. The conductive shield body includes a top wall and side walls extending downwards from the edge of the top wall, with one end of the side wall away from the top wall contacting the probe station. The conductive shield body provides electrostatic shielding and optical protection, ensuring that the pin clip is protected from electrostatic discharge and stray light interference during testing, thereby improving testing accuracy and stability. Cable openings are provided on the side walls to accommodate the cable layout between the pin clip and the testing machine, ensuring that the cable can pass smoothly and maintain a normal connection with the testing system. The light-absorbing layer is disposed on the surface of the conductive shield body. The organic carbon black coating has good light absorption properties and can effectively absorb stray light from the environment, reducing interference from light reflection on the optical alignment system.

The application belongs to the technical field of etching liquid, and particularly relates to a photoresist stripping liquid for OLED, a preparation method and application thereof. The photoresist stripping liquid comprises, with the total mass of the formula being 100%, 1-10% of organic alcohol amine, 2-5% of amidino compound, 0.1-3% of polyol, 0.01-0.2% of betaine type corrosion inhibitor, and the rest is organic solvent. The photoresist stripping liquid for OLED has excellent stripping performance and good protection effect on the Al layer. The photoresist stripping liquid is particularly suitable for stripping requirements of OLED devices containing Al, can safely strip the photoresist which is cross-linked and carbonized after solidification, and at the same time protects the Al process in the OLED device from being corroded, and has good application prospect.

This application relates to the technical field of physical vapor deposition, specifically disclosing a novel embedded composite target and its preparation method. The preparation method of the embedded composite target disclosed in this application is as follows: the substrate material is cylindrical, with the upper and lower end faces leveled, and a circular through-hole is made at the center. The upper end face of the through-hole has a chamfer, and the inner wall of the through-hole is perpendicular to the upper and lower end faces. Threads are machined into the inner wall of the through-hole in the substrate, with a thread height of 0.1~0.3 mm and a thread pitch of 0.2~0.5 mm. The embedded material is cylindrical, with an outer diameter 0.12~0.19% larger than the inner diameter of the circular through-hole in the substrate material, and a height equal to the thickness of the substrate material. The embedded material is frozen in liquid nitrogen for 20~30 min, removed, and embedded into the circular hole in the substrate material. After standing for 5~10 min, an embedded composite target blank is obtained. Post-processing yields the final product. The preparation method of this application is simple, and the embedded composite target exhibits a tight bond and high bonding strength between the embedded material and the substrate material.

The utility model provides a kind of frame pressing device, comprising: support plate and the horizontal plate for supporting furniture frame, support plate is equipped with two, and horizontal plate fixed mounting is on the upper surface of two support plates, horizontal plate side fixed mounting has mounting plate, and the lower surface of mounting plate one end is equipped with electric push rod, and the center of horizontal plate lower surface is equipped with pressing assembly, and the side of horizontal plate is equipped with first motor. By the fixed rubber block of sticking solid plate clamped on the slider both sides furniture frame anti-slip and antisense, can ensure the stable fixation of different size frame, then by electric push rod piston rod drives lower pressing plate to drop, make the triangular array convex rubber ball of lower pressing plate lower surface setting press tightly frame upper surface, exert vertical pressure, then by pressing assembly jacking frame, with lower pressing plate forms up-down counter-pressure, to complete the pressing of furniture frame leg, ensure that furniture frame's splicing part stress uniform, tightly combined, significantly improve the overall firmness of frame.

The utility model discloses an air bag frame insert injection molding clamp structure, which relates to the technical field of injection molding clamps and comprises a workbench, a first fixing block and a second fixing block are fixedly mounted on two sides of the top of the workbench, a plurality of groups of limiting blocks are fixedly mounted in a connecting block in equal rows, and a connecting rod is fixedly connected with a rotating shaft. The included angle between the connecting rods is 120 degrees, the clamping blocks are fixed to the inner sides of the connecting rods, and limiting mechanisms used in cooperation with the connecting rods are fixedly installed in the connecting blocks. The limiting block is made of rubber materials, the limiting mechanism accurately restrains the motion trail of the connecting rod through the fixing ring and the fixing frame, it is ensured that the position of an insert is stable during injection molding, injection molding defects caused by shaking are avoided, the sliding groove in the top of the workbench provides accurate guiding for movement of the movable frame, and it is ensured that the movable mold and the fixed mold are accurately aligned and closed; due to the fact that the insert is firmly fixed, the insert does not move when the cavity is filled with plastic melt, it is guaranteed that plastic and the insert are tightly combined, and the injection molding quality is improved.

This application relates to a high-nickel cathode material and its preparation method, and a lithium-ion battery. The chemical formula of the high-nickel cathode material is Li. σ Ni a Co b Mn c M1 x M2 y M3 z O 2+α Wherein, 0.80<σ<1.20, a+b+c+x+y+z=1, 0.7<a<1.0, 0<b<0.05, 0<c<0.3, 0<x<0.3, 0<y<0.3, 0<z<0.3, 0<α<0.1, M1, M2, and M3 are each independently including at least one of Al, Co, Zr, Ti, Mg, Y, La, Sr, Ba, W, Mo, Nb, and Si, and M1, M2, and M3 are all different; the high-nickel cathode material includes a high-nickel material matrix and a coating layer. Cu-Kα rays are used to perform XRD measurements on the high-nickel material matrix and the high-nickel cathode material, respectively. The intensity of the (104) diffraction peak appearing in the diffraction angle range of 44-45° is recorded as I. b (High-nickel material matrix) and I c (High-nickel cathode material), the unit of diffraction peak intensity is counts, let the diffraction peak intensity difference P = I c -I b 0 < P < 1000. The high-nickel cathode material provided in this application has better high-temperature cycling performance and a low DC internal resistance growth rate.

The invention discloses a preparation method and application of an electrolytic water anode oxygen evolution catalyst. The method comprises the following steps: dissolving a nickel salt, a molybdenum salt and a sulfur source in water, and adjusting the pH value to be acidic to obtain an electrodeposition electrolyte; a three-electrode system composed of a conductive substrate, a counter electrode and a reference electrode is inserted into the electro-deposition electrolyte and electrified, and the electrolytic water anode oxygen evolution catalyst is electro-deposited on the conductive substrate. The catalyst prepared by the preparation method disclosed by the invention has rich nano structures and electronic effects, and can show relatively high intrinsic catalytic activity; and meanwhile, the catalyst is tightly combined with the conductive substrate, so that the cycling stability of the material in alkaline electrolyte is further ensured. The water electrolysis oxygen evolution reaction catalyst prepared by the one-time electrodeposition method has the advantages of simple process, easiness in scale production, no need of additional addition of a binder, direct in-situ growth on a conductive substrate, and improvement of the binding force of the catalyst and the substrate, so that the charge transfer efficiency and the structural stability are improved, and the method has a good application prospect in water electrolysis anode oxygen evolution.

This invention relates to the field of sodium-ion battery technology, and discloses a sodium-ion cathode material, its preparation method and application, a sodium-ion battery, a sodium-ion battery pack, and a device. The sodium-ion cathode material includes a matrix and a coating layer covering the matrix; the matrix has the composition shown in Formula I: Na 1‑x [Ni y Mn z M u Ti v O2 Formula I; the coating layer has the composition shown in Formula II: Na 2‑β Ti 6‑α M′ α O 13 Formula II. This sodium-ion cathode material possesses characteristics such as high ionic and electronic conductivity, strong structural stability, and strong chemical stability. Furthermore, using this composite cathode material in sodium-ion batteries can effectively improve the battery's electrochemical performance.

This application discloses a high-coverage calcium carbonate-titanium dioxide composite pigment and its preparation method. The composite pigment includes a calcium carbonate core layer and a titanium dioxide shell layer coating the outer surface of the calcium carbonate core layer. The calcium carbonate core layer is obtained by sequentially acid-activating and modifying a calcium carbonate base layer with a hydrophilic additive. The hydrophilic additive is selected from at least one of polyhydroxy compounds, polyelectrolytes, or small molecule surfactants. The small molecule surfactant contains carboxyl or sulfonic acid groups, and its molecular weight is ≤1000. The calcium carbonate-titanium dioxide composite pigment provided by this application exhibits a strong interfacial bond between calcium carbonate and titanium dioxide, and the titanium dioxide shell layer is not easily detached, resulting in high titanium dioxide utilization and fully leveraging the high hiding power of titanium dioxide to improve the hiding power of the composite pigment. Furthermore, the strong interfacial compatibility between calcium carbonate and titanium dioxide and excellent dispersion stability in aqueous systems improve the applicability of the composite pigment in aqueous systems.

This utility model relates to the technical field of thermal insulation structures, and discloses a rooftop thermal insulation reinforcement structure, including a thermal insulation layer laid on the rooftop. The thermal insulation layer has an extruded polystyrene (XPS) board inside, and a wire mesh layer is laid on the XPS board. The XPS board and the wire mesh layer are wrapped inside the thermal insulation layer. The wire mesh layer has multiple mesh openings, and there are intersections between adjacent mesh openings. An insert strip is provided at the intersection, and the insert strip passes through the XPS board. By setting the XPS board and the wire mesh layer inside the thermal insulation layer, and setting the insert strip at the intersection of the wire mesh layer, the connection strength of the internal materials of the thermal insulation layer is improved.

The application discloses a kind of support steel column comprehensive processing device, mainly related to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.It mainly relates to skeleton vehicle machining technical field.

The application relates to a method for improving the density of a platinum-based powder metallurgy alloy, which realizes the purpose of reducing the porosity of a precious metal powder metallurgy alloy ingot and improving the material density through vacuum melting, powder preparation, resonance compaction, liquid phase sintering, controlled forging and other processes. The above process is adopted, the high-temperature endurance strength and toughness of the platinum-based powder metallurgy alloy are greatly improved, the high-temperature service life of the product is significantly enhanced, and good economic benefits are brought.

The present application relates to the leather processing technical field, specifically to a kind of processing technology for improving leather luggage easy to crack, comprising the following steps: S1: selecting raw leather, preliminary treatment is carried out to remove surface impurities, and adjust moisture content;S2: the leather after S1 processing is soaked in natural plant oil solution;S3: the leather after soaking is treated with sound wave;S4: heat pressing treatment is carried out, and the gap between leather fibers is sealed;S5: the leather after heat pressing treatment is cooled and cured;S6: using nanoscale filler, the leather after curing is filled;S7: the leather after filling is treated with final surface coating, and protective layer is formed.The present application, by comprehensive treatment method, significantly improves the flexibility, waterproofness, pressure resistance and crack resistance of leather, while using environmentally friendly materials to optimize cost, effectively prolongs the service life of leather products and reduces environmental impact.

The utility model discloses a soft sugar packing jar belongs to soft sugar storage technical field, including jar body and jar cover, the inside fixed cover of jar body is equipped with fixed ring, the top movable cover of jar body is equipped with movable ring, the inner ring fixed connection of movable ring has two horizontal boards, two between horizontal boards fixed connection has sweet sauce cylinder, the inside of sweet sauce cylinder is equipped with baffle, the top inner wall of jar cover is fixedly connected with vertical rod, the bottom fixedly connected with sealing plate of vertical rod, and sealing plate is matched with sweet sauce cylinder, two rubber convex membranes are fixedly covered on the jar cover, the extrusion rod is fixedly connected on rubber convex membrane, the bottom hinged of extrusion rod has the rotating plate, the top rotary connection of rotating plate has fixed plate. The utility model not only is convenient to combine jar cover and jar body closely, prevents jar cover easy to open mistakenly, and still seals inside sweet sauce cylinder, and like this is favorable to the sealed preservation of not edible sweet sauce, prolongs the storage time.

A composite solid-state electrolyte membrane and its preparation method, and a solid-state battery, are disclosed. The preparation method of the composite solid-state electrolyte membrane includes: providing a polymer mother liquor comprising polyvinylidene fluoride, polyimide, and lithium salt; dispersing inorganic ceramic electrolyte powder in a solvent; under a first mechanical shear, adding a first portion of filler pre-dispersion liquid accounting for 5% to 25% to the polymer mother liquor; under a second mechanical shear, adding a second portion of filler pre-dispersion liquid accounting for 25% to 50%; and under a third mechanical shear, adding the remaining portion of filler pre-dispersion liquid to prepare a composite slurry; and forming the composite slurry into a film to prepare the composite solid-state electrolyte membrane. This application improves the dispersion effect and interfacial bonding of the filler in the composite solid-state electrolyte membrane by using a combination of staged feeding and mechanical shear, pre-wetting a small amount of filler to construct a stable initial mixed phase, and then using a portion of the filler to reduce viscosity and improve shear efficiency, thereby promoting the uniform dispersion of the remaining filler.

The invention discloses an internal insulation steel pipe special cable and a four-groove roller reducing mill thereof, and relates to the technical field of cables, the cable comprises a steel pipe layer and convex ribs integrally processed on the outer surface of the steel pipe layer; the reducing mill comprises a fixing ring; the rolling assembly is rotationally installed in the fixing ring, the rolling assembly comprises a rotating ring and four rollers distributed in the rotating ring in a surrounding mode, and a gap used for extruding a steel pipe layer of the cable to form a convex rib is formed between every two adjacent rollers; and the driving assembly is used for driving the rolling assembly to rotate in the fixing ring so as to form a convex rib which extends in the axial direction and is of a linear structure or a spiral structure on the surface of the cable. According to the invention, through the relation between the revolution speed of the roller and the advancing speed of the cable, the convex ribs with axial linear structures or the convex ribs with different leads and spiral structures can be flexibly processed, the torsional strength, the heat dissipation efficiency and the installation guidance quality of the special cable in different laying environments are improved, and the customization requirements of high-end markets are met.

The utility model discloses a reinforcing steel bar positioning structure for slope protection engineering, which comprises a soil slope and a fixing mechanism, the fixing mechanism comprises a transverse reinforcing steel bar, the surface of the transverse reinforcing steel bar is movably connected with a plurality of vertical reinforcing steel bars, and the crossed positions of the transverse reinforcing steel bar and the vertical reinforcing steel bars are fixed through binding iron wires. The front faces of the transverse steel bars are movably connected with a plurality of downwards-inserted steel bars, the bottom ends of the downwards-inserted steel bars are inserted into the soil slope, and a positioning mechanism is arranged at the top of the soil slope. In the practical application process of the reinforcing steel bar positioning device, the reinforcing steel bar positioning stability is greatly improved through the synergistic effect of the fixing mechanism and the positioning mechanism. In slope protection engineering, slope topography often leads to easy slippage of steel bars, and parts such as downward insertion steel bars and fixed steel bars in the fixing mechanism and the positioning mechanism are matched with each other, so that the steel bars can be inserted into a soil slope, the whole structure is kept on the surface of the slope, the adjustment work caused by slippage of the steel bars is reduced, and the construction efficiency is greatly improved.

The invention provides a method and device for casting a metallized ceramic matrix and the metallized ceramic matrix, and relates to the field of electronic ceramic surface metallization. The method comprises the following steps: pre-punching ceramic substrates, carrying out surface treatment, and fixing a plurality of ceramic substrates in a mold cavity; then pressing the liquid metal into a mold cavity provided with the ceramic matrix through pressure, and cooling the mold cavity and an internal contained object to room temperature under the protection atmosphere of inert gas; and finally, after the mold is removed, the required multi-layer interconnected metallized ceramic matrix can be prepared. Compared with the prior art, the process is simple and convenient, the multiple layers of ceramic matrixes and the metal layers are integrally cast through the casting technology, interconnection of any layers of the multiple layers of ceramic matrixes is achieved by pressing in the liquid metal, and the metallized ceramic matrixes of any three-dimensional structure which are interconnected in a three-dimensional mode are obtained through the liquid metal.

The application discloses a kind of surface micro-arc oxidation dense ceramic film aluminum alloy and its preparation method.After annealing treatment of aluminum alloy base material, it is in turn treated by oil and grease removal, micro-arc oxidation and drying, and obtained;The conditions of the annealing treatment are as follows: temperature is 200-300 DEG C, time is 50-80 min;The conditions of the micro-arc oxidation are as follows: current density is 8-10 A / dm 2 , time is 15-20 min;The method forms dense ceramic film on the surface of alloy base material through the synergistic effect of annealing and maintenance oxidation, which can effectively improve the comprehensive performance of the material;The aluminum alloy obtained by the technical scheme of the application has excellent corrosion resistance and wear resistance, and solves the corrosion problem of aluminum alloy welding structure in high temperature, high humidity and high salt mist environment.