23results about How to "Durable" patented technology

This invention discloses a method for monitoring partial discharge in transformers based on a high-frequency response DAS system, comprising: determining a partial discharge monitoring scheme and designing an optical fiber network according to the structure and layout of the transformer to be monitored; winding optical fibers into optical fiber loops, ensuring the loops are uniformly wrapped around the transformer surface; connecting the optical fiber loops on the transformer to a DAS demodulation host device located in an electromagnetic shielding room using optical fiber patch cords; conducting preliminary transformer background noise monitoring and calibrating the transformer background noise; and, after the transformer is put into use, using the DAS demodulation host device to monitor the partial discharge status of the transformer in real time during operation. This invention, based on the transformer's structure and layout characteristics, attaches corresponding optical fiber loops to the transformer surface, and, in conjunction with a DAS host device with a high-frequency response range, achieves the monitoring of partial discharge in the transformer.

The invention relates to a preparation method of a high-strength and high-toughness coating rod type insulator for a high-speed rail contact net, and relates to the field of electrified traffic of high-speed railways. The high-strength and high-toughness coating rod type insulator comprises a porcelain insulator main body and an integrated metal flange body formed by an ETV coating and the porcelain insulator main body, the porcelain insulator main body is prepared by mixing calcined high bauxite, feldspar, kaolin, zirconite, quartz, cordierite, ceramic short fibers, clay and the like, adding the mixture into a ball mill, uniformly mixing to form slurry, sieving to remove iron, squeezing the slurry, pugging the slurry, performing high-pressure vacuum treatment, mechanically pressing to form a blank, cutting, drying, glazing, and firing at a high temperature of 1250 DEG C. The porcelain insulator main body is prepared by the steps of appearance detection, good quality detection and the like. By adopting a zirconium-aluminum composite ceramic matrix preparation technology, the composite material has the characteristics of high density, high strength, good toughness and small dispersity, the bending load tolerance strength is greater than or equal to 25KN / cm < 2 >, the torque load is greater than or equal to 15KN. M, and the composite material can completely meet the technical requirements of use of porcelain insulators in high-voltage power transmission grids of high-speed railways.

The utility model discloses a transparent gradient color and ice crystal data line, which comprises two connecting ends 1, each connecting end 1 is provided with an outer mold, each outer mold is respectively provided with a PP material I 2, a PP material II 3, a plastic shell 4 and a transparent PVC I 5 from inside to outside, the PP material I 2 is connected with the connecting ends 1, the outer surface of the plastic shell 4 is coated with gradient color paint, the connecting ends 1 are connected through a line body 6, and the line body 6 is connected with the plastic shell 4. The transmission line designed by the utility model has the effects of attractive appearance and strong performance.

The utility model relates to the technical field of rubber joints, in particular to an anti-fatigue rubber joint which comprises joint ends, the joint ends are symmetrically distributed along the two ends, an integrally-formed joint center is arranged between the two joint ends, and built-in grooves are formed in the joint ends. Through the design of the joint center and the side flaps, the anti-fatigue and anti-deformation capacity of the rubber joint is remarkably enhanced, when the rubber joint needs to be bent, damage caused by bending can be reduced, the damping effect is achieved when objects at the two ends are extruded and impacted, the side flaps are annularly distributed outside the joint center and can be matched to be bent when the joint center is bent, and the anti-fatigue and anti-deformation capacity of the rubber joint is improved. In addition, the joint end is wrapped by the woven sleeve made of the aluminum alloy material, the situation that the joint end is extruded and deformed when connected with a pipe fitting or a rod piece is avoided, and the fatigue resistance of the rubber joint is further guaranteed.

The utility model provides a solar integrated intelligent charging bag. The solar integrated intelligent charging bag comprises a waterproof layer (1), a handle arranged on the edge of the waterproof layer (1), a support (3) arranged on the outer side of the waterproof layer (1), a pull belt (4) arranged on the support and a photovoltaic assembly arranged on the inner side of the waterproof layer (1). The handles are arranged at the two ends of the waterproof layer (1), and PCBs (64) are arranged in the handles. The PCB is connected with the photovoltaic module; the waterproof layer can be folded, and after the waterproof layer is folded, the handle makes contact with the waterproof layer and corresponds to the waterproof layer. One end of the support is fixed to one side of the waterproof layer, and the other end of the support is movably connected to the other side of the waterproof layer. The solar water heater can store electricity under the condition of insufficient sunlight, and is convenient for a user to use in any environment. Folding is convenient, carrying is easy, and space can be fully utilized. And the power utilization requirements under the conditions of outdoor work, travel and emergency are met.

This application relates to a floor assembly and a vehicle, belonging to the field of vehicle body reinforcement technology. The floor assembly includes: a longitudinal beam with a first inner cavity extending through it; the longitudinal beam includes at least two first reinforcing plates and at least one second reinforcing plate; the first reinforcing plates are spaced apart within the first inner cavity, and the second reinforcing plate is disposed within the first inner cavity and cross-connected to the first reinforcing plates; a crossbeam connected to the longitudinal beam; the crossbeam has a second inner cavity extending through it, and the crossbeam includes at least one third reinforcing plate and at least one fourth reinforcing plate; the third reinforcing plates are spaced apart within the second inner cavity, and the fourth reinforcing plate is disposed within the second inner cavity and cross-connected to the third reinforcing plates; and a mounting bracket disposed on the side of the longitudinal beam near the bottom of the vehicle and embedded in the first inner cavity, the mounting bracket being connected to at least two of the first reinforcing plates. The multi-cavity structure of this application can significantly increase the structural strength and deformation resistance of the longitudinal and crossbeams, improving the overall rigidity of the vehicle body.

This invention relates to the field of pipeline temperature control switch technology, and more particularly to a temperature control valve, comprising a valve body, a valve core, a temperature control unit, and a drive device. The valve body has an inlet channel and an outlet channel separated by a partition, and the partition has a connecting port. The valve core includes a push block positioned above the connecting port, with multiple arc teeth on its lower part. The output end of the drive device is connected to the push block. A sleeve is provided on the push block, with one end of a rotating rod connected to the output end of a drive motor, and the other end threadedly connected to the sleeve. The drive device causes the push block to gradually move towards the connecting port, and the lower part of the arc teeth gradually enters the connecting port. Water flowing through the connecting port exits through the channel between two arc teeth. Multiple channels between adjacent arc teeth form a multi-channel structure, reducing pressure loss and side leakage, greatly improving the performance of this temperature control valve. The threaded connection allows for more precise control of the channel opening size and flow rate ratio, resulting in more accurate temperature control.

The invention relates to the technical field of electrode preparation, in particular to a laser electrode preparation method based on machine learning and flow field simulation optimization and an electrode thereof. The preparation method comprises the following steps: S1, constructing a parameter database; s2, preparing a precursor solution; s3, dropwise adding the precursor solution onto a sample, and then heating and drying the sample; s4, constructing a multi-channel electrochemical test module; s5, carrying out a high-throughput test on an alloy element formula on the electrode plate; s6, collecting sample data, and performing active learning optimization on the sample data; s7, an electrode structure is designed through flow field simulation; and S8, processing the base material loaded with the catalyst by using femtosecond laser subjected to space-time shaping to obtain the electrode material. And an efficient and low-cost solution for preparing the catalytic electrode is provided for the green hydrogen energy industry.

The invention provides a method for manufacturing a double jacquard warp knitted fabric of a composite structure, and the manufacturing method comprises the following steps: step S1, a machine selects PB1-PBN, JB(N+1).1, JB(N+1).2, JB(N+2).1, JB(N+2).2, F, GB(N+3); step S2, the PB1-PBN is threaded with yarn according to design requirements; step S3, a padding needle method: GB(N+3), GB(N+4) adopt a looping process; step S4, yarn selection: the front yarn adopts a highly wear-resistant yarn, and the back yarn adopts a soft skin-friendly yarn. The invention can solve the problem of lack of three-dimensional pattern surface in double jacquard warp knitted fabrics produced on the market and the need for subsequent composite with other materials for reinforcement and embroidery post-processing.

The utility model discloses a kind of for ell axis rotating bridge's splicing welding tool, including bottom support plate, the top surface of bottom support plate is provided with bottom cushion block, the top surface of bottom support plate is provided with fixed shaft subassembly, lock sleeve subassembly and solid support subassembly;Fixed shaft subassembly includes second side brace block, fixed shaft, sleeve head and oval recess;Lock sleeve subassembly includes first side brace block, threaded shaft and internal thread cone and two gaskets;Solid support subassembly includes third side brace block, sliding rod and first stop plate, the tool further includes fourth side brace block, threaded stop shaft and second stop plate.The tool utilizes the setting of internal thread cone, with durability, utilize the setting of oval recess, complete the positioning of ell axis in ell axis rotating bridge, utilize the setting of first stop plate and second stop plate, not only realize the positioning of first side plate, second side plate, also realize the clamping of internal baffle, to conveniently, efficiently complete the splicing welding of ell axis rotating bridge, structure is simple, suitable in the splicing welding process of ell axis rotating bridge and popularization and application.

The application discloses an ion beam composite sputtering target assembly with a diamond coating three-dimensional skeleton and a preparation method thereof, which comprises a composite sputtering target, a cooling back plate and a transition layer, wherein the composite sputtering target comprises a three-dimensional skeleton with a diamond coating and a main sputtering material filled in the three-dimensional skeleton; the three-dimensional skeleton is a honeycomb structure or a net structure; and the transition layer is arranged between the composite sputtering target and the cooling back plate and is a Cu-Mo-Cu composite layer structure. Compared with the prior art, the application has better heat shock resistance and structural stability.

The utility model discloses a water area operation shoe with anti-wear effect, which relates to the technical field of external wall insulation board construction, and comprises an operation shoe main body and an internal shell, the internal shell is fixedly connected in the operation shoe main body, the bottom of the internal shell is fixedly connected with an anti-skid layer, the bottom of the anti-skid layer is fixedly connected with a damping plate, and the damping plate is fixedly connected with the bottom of the anti-skid layer. The bottom of the operation shoe body is fixedly connected with the bottom plate, the operation shoe body is made of high-strength synthetic materials, an inner shell is detachable and has good air permeability and sweat absorption, and the anti-skid layer is made of silica gel materials. Compared with an existing common water area operation shoe, the water area operation shoe with the wear-resistant effect has the advantages that the anti-skid layer is made of silica gel materials and is made of high-strength synthetic materials such as polyurethane and polyester fibers, the materials have good wear resistance and tear resistance and can provide sufficient protection in water area rescue, the damping plate is made of gel materials, and the service life of the damping plate is prolonged. The shoe sole has good elasticity and shock absorption performance, and can effectively relieve the pressure of the foot sole during walking.

The utility model provides a building outer wall line foot drainage device of reasonable structure design has safety, durability, aesthetic property. The utility model discloses a drainage groove, fixing piece and drain pipe, the fixing piece fixed setting is on the line foot upper portion, the middle part fixed setting of fixing piece has fixing piece clamping edge, and the drainage groove clamping fixed is on fixing piece clamping edge, the middle position of drainage groove is provided with the drainage hole, and the upper surface of the part of drainage groove far from the drainage hole is high, and the upper surface of the part of drainage hole near is low, the drain pipe is embedded in the line foot, and its top stretches out line foot rear and is connected with the drainage hole, and its bottom stretches out line foot.

The present application relates to the technical field of moisture-proof agent, and provides a kind of mildew-proof moisture-proof agent and preparation method thereof, the mildew-proof moisture-proof agent is composed of the following components by mass fraction: diatomite 40-45 parts, calcium chloride 15-20 parts, activated carbon 8-12 parts, starch 4-6 parts, tea oil 1.5-1.7 parts, tea polyphenol 2-3 parts, tea seed 4-7 parts.The mildew-proof moisture-proof agent of the present application takes a plurality of natural raw materials as the core, utilizes the by-products of tea production, realizes the mildew-proof needs of library, archives room and other areas.The source of product raw materials is extensive, and the production process is relatively simple, which is very convenient for popularization.It has high efficiency, safety, durability and economy, can realize moisture absorption and moisture-proof and antibacterial mildew-proof functions at the same time, and is harmless to literature and human body, easy to use, and cost controllable.

The embodiment of the invention provides a sealing structure suitable for a rotor pump. The sealing structure comprises a pump body 1, a gear 2, a sliding bearing 3, a front cover 4, a rear cover 5, a rear O-shaped ring 6 and a front O-shaped ring 7. The gear 2 and the sliding bearing 3 form a dimension chain which is arranged in an 8-shaped hole of the pump body 1; the rear O-shaped ring 6 and the front O-shaped ring 7 are sealing rubber rings; the front O-shaped ring 7 is embedded between the pump body 1 and the front cover 4, the rear O-shaped ring 6 is embedded between the pump body 1 and the rear cover 5, and the gap of a pump set is controlled through the sealing effect of rubber and the machining size. By providing a pure mechanical seal ring control clearance gear pump structure, after a pump set operates for a period of time, a medium in the pump is directly sealed through an O-shaped ring at the end face, the phenomenon of swelling cannot be generated, the end face clearance cannot be increased, the effects of reducing internal leakage of the pump set and ensuring normal operation of the pump set are achieved, and meanwhile the gear pump has the advantages of being simple in structure, convenient to operate and the like. And the use is durable.

A hose with a metal part has a hose 2, a metal part 3 and a sleeve 4. One end portion of the hose 2 is connected to the metal piece cylindrical portion 31 of the metal piece 3. The sleeve (4) covers the hose (2) and the metal tubular section (31). The sleeve (4) has a first cylindrical section (41) that covers the fitting cylindrical section (31) and a second cylindrical section (42) that covers the hose (2). The diameter of the second cylindrical part 42 is smaller than that of the first cylindrical part 41. The second cylindrical part 42 has a length of 8 mm or more. The thickness of the second cylindrical portion 42 is 1 mm or more. The hardness of the second cylindrical part 42 is 70-95 (inclusive) as measured by a Type A durometer in accordance with JIS K6253.

The utility model discloses a durable automobile clutch pressure plate, which belongs to the technical field of clutch pressure plates, and is characterized by comprising a clutch pressure plate main body, the clutch pressure plate main body comprises a pressure plate shell, a pressure plate sheet is fixedly connected in the pressure plate shell, and the pressure plate sheet is fixedly connected with the pressure plate shell. A diaphragm spring is arranged between the opposite sides of the pressure plate shell and the pressure plate piece, the outer circumference of the diaphragm spring makes close contact with the clutch pressure plate body and the pressure plate piece, a connecting piece is annularly arranged on the surface of the pressure plate piece, a mounting bolt penetrates through the connecting piece, and a transmission piece is arranged at the bottom of the surface of the mounting bolt. The clutch pressure plate solves the problems that an existing clutch pressure plate achieves separation and combination of clutch plates mainly in a friction mode, large friction is generated in the using process, the clutch pressure plate is prone to being abraded under frequent friction, the service life of the clutch pressure plate is shortened, and the using effect is affected.

This invention belongs to the field of coating materials, specifically including an anti-fog coating, its preparation method, and its application. The raw materials for preparing the anti-fog coating specifically include the following components: photothermal nanoparticles, polyvinyl alcohol, phytic acid solution, glutaraldehyde solution, and deionized water in a ratio of 0.6 kg: 15 kg: 20 L: 10 L: 150 L. The photothermal nanoparticles are added to deionized water and ultrasonically dispersed to obtain a uniform nanoparticle suspension. Polyvinyl alcohol is added to this suspension, and the system is placed in a high-temperature water bath and magnetically stirred until completely dissolved. Then, an appropriate amount of phytic acid solution is added, and ultrasonically dispersed until the phytic acid is fully dissolved. Next, glutaraldehyde solution is added to the mixture, and magnetically stirred to allow the glutaraldehyde to fully react with the system components, obtaining a stable and dispersed coating. Finally, the coating is uniformly applied to the surface of a glass substrate and allowed to air dry naturally in a ventilated area. The resulting coating effectively inhibits the formation of fog droplets and accelerates the dissipation of existing fog droplets, while maintaining good light transmittance.

This invention provides a high-efficiency organic EL element with high driving stability and a suitable material for the organic EL element. The organic EL element material comprises an indole-carbazole compound represented by general formula (1). Here, ring a is represented by formula (1a), X is NR, S, O, or CR2, and Ar... 1 Ar 2 The aromatic heterocyclic group represented by formula (1b) is Y, which is N or CR, but at least one of them is N, L 1 It is an aromatic hydrocarbon group. The material used in the organic EL element is suitable as the main body of the light-emitting layer or the hole-blocking layer of the organic EL element.

The invention belongs to the technical field of building materials, and discloses a concrete super-hydrophobic composite coating based on a microorganism induced calcium carbonate deposition technology and a preparation method and application thereof.The composite coating is composed of a calcium carbonate micro-nano coarse structure generated through microorganism induction and a low-surface-energy stearic acid surface layer, a calcium carbonate micro-nano coarse structure-low surface energy surface layer composite system is constructed, and the waterproof performance and the mechanical strength are excellent. An inorganic-organic composite system of a calcium carbonate micro-nano coarse structure-low surface energy surface layer is constructed, the coating not only shows excellent super-hydrophobic performance, but also has good mechanical strength and mechanical stability, and the water penetration resistance and durability of concrete are remarkably improved.

The utility model discloses a network cable relates to cable technical field, including the wiring harness that is located in the cable body, the cable body still includes the first protective sheath, be provided with the reinforcing sleeve in the first protective sheath, be provided with the reinforcing wire between the first protective sheath and the reinforcing sleeve, be provided with the wiring harness in the reinforcing sleeve, the wiring harness is provided with several, the first filling protruding of reinforcing sleeve inner wall is provided with, the first filling protruding at least partial embedding in the first space formed between adjacent wiring harness, and the first protective sheath improves the protection effect of cable, makes cable have durable, not easy to lose the effect, and the reinforcing sleeve and reinforcing wire improve the tensile resistance, the characteristics of the tensile resistance of cable, and several wiring harnesses improve the signal transmission efficiency of cable, and the first space does not make cable inside too full, so that cable rigid, therefore the first space makes cable convenient to curl, bend, and easily change the laying path.

The application discloses a tension aging device of a large-load electromagnet, which comprises a bottom plate, a mounting seat matched with the electromagnet to be measured and a tension aging mechanism detachably mounted on the bottom plate, the electromagnet is mounted on the mounting seat, the output shaft of the electromagnet is connected with the tension aging mechanism through a pin, and the tension spring is mounted through pre-tension, the pre-tension of the tension spring is applied to two spring fixing plates through the thread hooks on the two sides, and the two spring fixing plates are respectively pressed against the supporting positioning blocks on the two sides. When the electromagnet is powered on, the output shaft pulls the left spring fixing plate to move, and the load force is provided by the deformation tension of the tension spring during the movement. The load is provided by the spring force to replace the counterweight loading, the whole device is more portable, a plurality of tension springs are installed in parallel, the large load is decomposed into small loads according to the number of the tension springs, the load force of the device is effectively improved, the load force can be adjusted by changing the number of the spring installation and the pre-tension length, the adjustment range is wide, and the device is suitable for electromagnets with various working forces.

This invention relates to a composition comprising: a) at least one protein having a molecular weight of at least 10 kDa; b) at least one film-forming polymer different from the protein; and c) at least one colorant selected from pigments, direct dyes, and mixtures thereof. The invention also relates to a method for dyeing keratin fibers, such as hair, comprising applying the composition to the keratin fibers, such as hair.