807 results about "Water resistance" patented technology

In some embodiments, the inventive subject matter is directed to a modular waders system that includes: a main waders garment and a covering unit. The covering unit may have multiple functions expressed in one or more layers, the functions being selected from the group of: durability, waterproofness or water resistance, breathability, insulation, cushioning, thermoregulation, and 2-way or 4-way elasticity. The waders system includes a coupling system that makes the covering unit easily donned or removed by the user as conditions dictate. In some embodiments, the inventive subject matter is directed to waders or other garment having a frontside portion with a mobile device holder comprising a flap, the holder configured to contain or couple to a handheld imaging device having a camera, the flap having one edge portion coupled to the other side so that the flap can reposition from a first position to a second position.

The invention discloses reactive compatible ACR-PHA core-shell latex and application thereof, and belongs to the field of polymer chemistry and material science. The latex comprises composite particles with core-shell, gradient core-shell, raspberry-shaped or Janus heterostructure, interfaces of ACR phase and PHA phase of the latex are connected through covalent bonds, and the compatibility problem of physical blending is fundamentally solved. The latex particles have a Z-average particle size of 80-400 nm, a PDI of less than or equal to 0.30, and a minimum film formation temperature (MFFT) of-10 to 12 DEG C. The coating prepared by the invention has excellent high-humidity barrier stability (WVTR is less than or equal to 65g / m.d), low-temperature rapid heat sealability, water resistance, oil resistance and complete recoverability, does not contain PFAS, is an ideal alternative scheme of a traditional PE (Polyethylene) spraying film, and is suitable for the fields of food packaging paper, paper cups, bowls and the like.

The invention discloses a cationic core-shell PHA nano-emulsion reinforcing agent as well as preparation and application thereof, and belongs to the technical field of papermaking chemicals. The problems that a traditional wet strength agent is poor in environmental protection property and difficult to recycle, and a conventional bio-based material needs high-temperature curing and is high in energy consumption are solved. According to the reinforcing agent, low-MFFT bio-based polyhydroxyalkanoate is used as a core, and a positive ion shell layer with strong positive charges is wrapped outside the core. The method has the core advantages that extra high-temperature curing is not needed, the film can be efficiently formed under the conventional 105 DEG C drying condition, and the energy consumption is remarkably reduced; meanwhile, high dry and wet strength and water resistance are achieved, the treated paper has excellent re-pulping recycling suitability, and the industrial pain point that traditional wet strength paper is difficult to recycle is solved.

The invention discloses a process for improving anodic oxidation consistency of an anode foil for an aluminum electrolytic capacitor, and relates to the technical field of capacitor manufacturing, and the process comprises the steps of multi-stage washing, etching, feeding, multi-stage formation, intermediate treatment, first post-treatment, roasting, second post-treatment, stability treatment, drying, rolling, inspection and packaging. Wherein the multi-stage formation adopts three-stage oxidation of low-temperature and low-current, medium-temperature and medium-current and low-temperature and high-current, so that an oxidation film forms a base layer, a growth layer and a high-density protection layer which are uniformly overlapped layer by layer, and the consistency and compactness of the oxidation film are synergistically improved through dynamic water washing, air drying and temperature field and fluid field regulation and control technologies; the oxide film is repaired through first post-treatment, the pore size of the oxide film is reduced, and the compactness of the oxide film is improved; and high-temperature roasting is combined, and a second post-treatment step is carried out, so that the oxidation film forms an aluminum oxide crystal structure which is stable, high in hardness and compact in structure, and the water resistance and reliability of the finished anode foil are enhanced.

The invention relates to an anti-corrosion treatment process for a ship lock steel structure. The anti-corrosion treatment process comprises the steps that S1, the surface of the ship lock steel structure is pretreated; s2, the surface of the pretreated steel structure is coated with an anti-corrosion coating containing graphene modified zinc powder to serve as primer; s3, the surface of the primer is coated with super-strong epoxy paint, intermediate paint is formed, and the super-strong epoxy paint is amine adduct cured high-solid epoxy finish paint; s4, the surface of the intermediate paint is coated with a polyurethane coating to serve as finish paint; by selecting proper paint as primer, intermediate paint and finish paint, one scheme is suitable for all areas and can resist corrosion for a long time, and finally the problem that different areas need to be constructed in different areas is solved. According to the anti-corrosion scheme, the adhesive force is high, the shielding property is high, the water resistance is good, and the ultraviolet resistance is high.

The present invention belongs to the field of plating technology and specifically relates to an ALD-Parylene composite film layer, a deposition device, and a deposition method thereof. By reserving a vacuum gap between a heating plate and the outer wall of a cavity, a barrier is formed to isolate the heating plate from heat conduction to the outside of the cavity as the vacuum degree in the cavity increases during the reaction process, thereby avoiding heat loss caused by direct contact and damage to seals, thereby improving the coating effect. The ALD reaction and the Parylene reaction are combined in the same reaction chamber, and different pipeline designs and time-sharing control are used to form a composite film layer structure of alternating ALD film layers and Parylene film layers on the surface of the substrate. The density of the ALD film layer is conducive to enhancing the water resistance of the film layer and sealing the defects of the original Parylene film layer. The softness of the original coating is maintained, and it will not break when subjected to impact and thermal shock, which is conducive to improving the stability of the film layer.

The invention discloses a method for calculating the opening and closing force of a miter gate based on the stroke acceleration of a hoist. According to the method, relevant parameters of the ship lock miter gate are obtained, the hydrodynamic resistance moment caused by the water level difference during opening and closing operation of the miter gate is calculated through a hydrodynamic resistance moment calculation formula considering the stroke acceleration of a miter gate hoist, then the maximum total resistance moment during opening and closing operation of the miter gate is calculated, and finally the opening and closing force of the miter gate is calculated. According to the calculation method, the dynamic water resistance moment can be calculated by directly using the gate submerging water depth, the gate door leaf width, the water level difference value and the stroke acceleration of the hoist, so that the opening and closing force is calculated, the process of converting the water level difference into the pressure intensity is omitted, and the influence of the stroke acceleration of the hoist is increased; and a more convenient calculation method is provided for estimating whether the maximum opening and closing force for opening and closing the gate exceeds the rated capacity of the hoist or not when the operation mode of the gate of the ship lock is changed.

The invention relates to the technical field of layered materials, and discloses a low-temperature-resistant polyurethane transfer film and a preparation method thereof. The multi-layer structure heat transfer film with a glue layer and a polyurethane-based transfer layer is prepared, and a photo-curing transfer layer material containing polyurethane acrylate containing polyether, polybutadiene blocks and organic silicon branched chains with good low-temperature resistance and sulfhydrylation graphene oxide with excellent far infrared performance is prepared; the low temperature resistance and the water resistance of the heat transfer film are effectively improved.

The invention relates to the technical field of coatings, and discloses a polysilazane-graphene composite electrical equipment insulating and pressure-resistant protective coating and a preparation method thereof. The flame-retardant coating is prepared from the following raw materials in parts by mass: 30 to 50 parts of polysilazane, 3 to 5 parts of telomer, 1 to 3 parts of synergist, 4 to 5 parts of modified silicon dioxide, 4 to 5 parts of modified graphene, 1.5 to 2 parts of multiwalled carbon nanotube, 0.5 to 2 parts of modified zinc oxide, 1 to 2 parts of fluorocarbon surfactant and 130 to 230 parts of tetrahydrofuran. By introducing the telomer, the adhesive force of the coating on a rusty surface is effectively improved, and the properties of high temperature resistance, insulation and pressure resistance, flame retardance, water resistance, ice condensation resistance and the like are enhanced; by introducing the synergist, the modified silicon dioxide, the modified graphene, the multi-walled carbon nanotubes and the modified zinc oxide, the protection capability is further improved. Therefore, the coating disclosed by the invention is excellent in comprehensive protection performance, can meet the long-term operation requirement of power equipment in a complex and severe environment, and is wide in application prospect.

The utility model relates to the technical field of carton structures, in particular to a waterproof and moistureproof coating carton structure, which comprises a carton body and is characterized in that at least two pairs of oppositely arranged double-layer folding cover plates are arranged at the top of the carton body, soft sealing strips are arranged on the long edges of the periphery of the top of the carton body, a moistureproof lining partition plate is arranged in the carton body, and the waterproof and moistureproof coating carton structure is arranged in the carton body. According to the utility model, a multi-layer structure is adopted to realize omnibearing water resistance and moisture resistance, the surface of the box body is coated with a polyurethane waterproof coating, and the top of the box body is provided with a double-layer folding cover plate and a sealing strip to reinforce sealing; honeycomb PP plastic partition plates are arranged inside to achieve dry and wet isolation. The bottom adopts a waterproof base matched with an arc-shaped diversion trench to discharge accumulated water; a disposable humidity sensing label is arranged to monitor humidity in real time; the cover plate is formed by compounding craft paper and PE coated paper, so that the cover plate is high in strength and moisture-proof; the handle holes are provided with double-layer reinforcing ribs to improve the bearing capacity. The structure integrates waterproof, moisture-proof and load-bearing functions and the like, and meets the use requirements of complex environments.

The utility model relates to the technical field of grouting reinforcement in tunnel engineering, and discloses a device for testing the water resistance of a chemical grouting material. The technical problems that in the prior art, a performance index test device is single, test result deviation is prone to occurring in multiple devices, the water resistance of grouting slurry under different dynamic water pressure working conditions cannot be simulated, and the grouting process of water-rich broken surrounding rock in an actual tunnel cannot be simulated are solved. The device comprises a barrel body, a bottom sealing steel plate and a water pressure diffusion assembly, a grouting hole is formed in the center of the bottom sealing steel plate and connected with a grouting pipe, and thermocouple sensors are arranged; the water pressure diffusion assembly is a cavity cylinder which is connected with a water injection pipeline, a water outlet hole and a water pressure detection sensor. The device can be used for simulating the water resistance of the grouting slurry under different dynamic water pressure working conditions, can be used for testing the diffusion distance, the anti-scouring property, the reaction temperature and the cementitious body permeability coefficient of the grouting material at the same time, and eliminates the error of the test result of the performance indexes by adopting a plurality of devices.

The invention belongs to the technical field of photovoltaic packaging adhesive films, and provides an EVA photovoltaic packaging adhesive film and a preparation method and application thereof. The EVA photovoltaic packaging adhesive film is prepared from 85 to 100 parts of ethylene-vinyl acetate copolymer, 1 to 15 parts of PID (Potential Induced Degradation)-resistant master batch, 0.6 to 1.8 parts of cross-linking agent and 0.2 to 2 parts of auxiliary agent, wherein the anti-PID master batch is prepared from 50 to 100 parts of ethylene-octylene copolymer, 1 to 20 parts of modified MOFs (Metal-Organic Frameworks), 1 to 15 parts of compatibilizer and 1 to 15 parts of beta-cyclodextrin. According to the EVA photovoltaic packaging adhesive film, the aging resistance, the mechanical strength, the water resistance, the PID resistance and the like of the EVA photovoltaic packaging adhesive film can be improved when the EVA photovoltaic packaging adhesive film is applied to a photovoltaic module end, the power attenuation phenomenon caused by existing EVA photovoltaic adhesive films PID-p and PID-s is obviously reduced, the PID power attenuation phenomenon of the photovoltaic module is effectively reduced, the service life of a battery piece is prolonged, and the photoelectric conversion efficiency of the battery piece is improved.

The invention belongs to the technical field of high polymer materials, and particularly relates to a self-repairing paint surface protection film based on asynchronous curing. The self-repairing paint surface protection film comprises a UV curing layer, a thermocuring layer and a base film, the thermocuring layer is positioned between the base film and the UV curing layer; the thermocuring layer is prepared from the following components: Zn-MOFs (Metal-Organic Frameworks) modified polycarbonate polyol resin and isocyanate; the UV curing layer is prepared from the following components: a fluorine-containing acrylate oligomer, KH-560 modified nano TiO2 and a photoinitiator; furthermore, the thermocuring layer further comprises a microencapsulation repairing agent. Correspondingly, the invention further provides a preparation method of the self-repairing paint surface protection film based on asynchronous curing. Self-repairing and weather resistance of the protective film are compatible, the problem that a single curing coating or a traditional synchronous curing coating cannot give consideration to self-repairing, weather resistance, water resistance, stain resistance and mechanical properties is solved, the highest elongation at break is larger than or equal to 320%, and the elongation at break is remarkably improved compared with the elongation at break of a single thermocuring system.

The invention provides an adhesive tape and a double-glass structure product. The adhesive tape comprises a release film layer, a pressure-sensitive adhesive layer and a base material layer which are sequentially stacked, the pressure-sensitive adhesive layer comprises a flaky magnetic filler; the flaky magnetic filler comprises a first-direction flaky magnetic filler and a second-direction flaky magnetic filler, an acute angle between the normal direction of the first-direction flaky magnetic filler and the winding axis direction of the adhesive tape is 0-45 degrees, and the first-direction flaky magnetic filler accounts for 50-100% of the weight of the flaky magnetic filler. By adding the flaky magnetic filler into the pressure-sensitive adhesive layer and adjusting the orientation of the flaky magnetic filler in the pressure-sensitive adhesive layer, the transverse and longitudinal water resistance of the adhesive tape is remarkably improved, the weather resistance and bonding strength of the adhesive tape are considered, and when the adhesive tape is applied to objects with water resistance requirements on edges or adhesive tape bonding parts, such as photovoltaic modules, laminated glass and the like, the adhesive tape has excellent water resistance. Effective protection can be provided, and the service life of assemblies is effectively prolonged.

The invention discloses a deepwater bank protection unit row construction error reverse modeling correction method and device, and relates to the field of data processing. Obtaining water body profile data of a target construction area where the deepwater bank protection unit row is located; according to the water body profile data, constructing a hydrological state tensor; inputting the hydrological state tensor into the prediction correction model, and constructing a layered water resistance field and a non-uniform sinking path dynamic response equation of the unit drainage body; determining a prediction result based on the stratified water resistance field and the non-uniform sinking path dynamic response equation; obtaining an attitude response vector flow sent by the sensor equipment after the unit row body enters water; dynamically matching the attitude response vector flow with a prediction result, and outputting an arrangement path correction value and a pitching attitude adjustment suggested amount; and dynamically correcting the attitude and the sinking path of the unit row body based on the arrangement path correction value and the pitching attitude adjustment suggested amount. The construction precision of the deepwater revetment unit row in a complex hydrological scene can be improved conveniently.

The invention provides a packaging structure and a related device. The packaging structure comprises a substrate, a cover plate, a light-emitting panel, a first wire and an electric connector. The substrate comprises a display area and a connecting area, and the connecting area is arranged around the display area. The periphery of the cover plate is connected with the connecting area in a sealed mode, and a containing space is formed between the middle of the cover plate and the display area. The light-emitting panel is connected to the display area, and the light-emitting panel is located in the containing space. Each first wire comprises a first end and a second end, the first end of at least one first wire is located in the display area and electrically connected with the light-emitting panel, and the second end penetrates through the substrate and is located outside the containing space. And the electric connecting piece is positioned outside the accommodating space and is electrically connected with the second end. According to the embodiment of the invention, the sealing performance of the packaging structure can be enhanced, and the problem that the packaging structure is poor in moisture resistance and waterproofness is solved.

The utility model relates to the field of sizing agent preparation, discloses a mixing device for preparing a water-resistant enhanced sizing agent, and solves the problems that the existing mixing device for preparing the water-resistant enhanced sizing agent is poor in material distribution effect, easy to cause material blockage and stacking and poor in mixing effect due to too much one-time feeding. Through the bevel gear, the material distributing plate, the ball body, the opening, the protruding rod, the clockwork spring, the gear, the first rack, the movable plate, the connecting plate, the spring and the filter screen, raw materials are classified according to particle shapes and powder shapes and are fed through the feeding barrel and the feeding frame; granular raw materials are uniformly and intermittently added into the main tank body through the stirring device and the intermittent feeding mechanism in the feeding barrel, meanwhile, powdery raw materials enter the main tank body through the feeding frame, blocky materials are removed through screening of the screens, and the blocky powder materials accumulated on the screens are extruded and scattered through the two sets of movable filter screens. The uniformity and the mixing quality of the raw materials are ensured.

The embodiment of the utility model provides a phase-change water heater. The phase-change water heater comprises a phase-change inner container, a water inlet pipe and a water outlet pipe, the heating assembly comprises a first cast aluminum heater, a second cast aluminum heater and a water pump, the first cast aluminum heater is communicated with the water inlet of the phase change inner container, the second cast aluminum heater is communicated with the water outlet of the phase change inner container, and the water pump is communicated with the first cast aluminum heater; the water receiving pipe is communicated with the water pump and used for being communicated with an external water source; the thermostatic valve is provided with a first water inlet valve port, a second water inlet valve port and a water outlet valve port, the first water inlet valve port is communicated with the water receiving pipe, and the second water inlet valve port is communicated with the water outlet of the second cast aluminum heater; the blow-off pipe is communicated with the water outlet valve port; one side of the support is provided with the phase change inner container, and the other side of the support is provided with the heating assembly and the thermostatic valve. According to the arrangement, the length of the pipeline between the devices is shortened, so that the water resistance of the pipeline is effectively reduced.

The invention relates to the technical field of paper preparation, in particular to environment-friendly water-resistant paper as well as a preparation method and application thereof. The water-resistant paper is prepared by physically embossing a hydrophobic paper semi-finished product and then coating the hydrophobic paper semi-finished product with a hydrophobic coating. The hydrophobic paper semi-finished product is prepared from the following components in parts by weight: 65 to 80 parts of hydrophobic modified lignin fiber, 10 to 20 parts of an adhesive, 2 to 5 parts of a waterproof agent, 5 to 15 parts of filler, 0.05 to 0.1 part of a filter aid and 0.5 to 1 part of an antioxidant. The water-resistant paper not only has the characteristics of excellent water resistance, instant water resistance, pollution resistance, self-cleaning, no toxicity, easiness in degradation, recoverability and environmental protection, but also has firm wet mechanical strength and long service life, meets the urgent demand of the market on environment-friendly paper, conforms to the European Union laws and regulations, can also improve the additional value and profit margin of common paper, and has wide application prospects. Industrial upgrading and product differentiation competition are brought to the papermaking industry, and wide application prospects are achieved.

The invention discloses a two-component polyurethane pouring sealant for capacitor potting and a preparation method thereof, and belongs to the field of pouring sealants. The pouring sealant comprises a component A and a component B in a mass ratio of 100: 30, wherein the component A is a main agent and comprises modified castor oil, a diluent, polyether polyol, a defoaming aid, a heat-conducting filler, a special waterproof material, a common filler and a molecular sieve filler; the component B is a curing agent and comprises modified isocyanate, bifunctional polyether polyol and a stabilizer. The polyurethane pouring sealant has the advantages of high heat conductivity, excellent water resistance, damp-heat aging resistance, long room-temperature operable time and the like, and is suitable for multiple industries such as electronic and electric appliances, insulating materials, adhesives, composite materials and the like.

The invention discloses a production line precision control system for improving the consistency of an electrode foil oxidation film, and relates to the technical field of anodic oxidation, a foil releasing unit, a multi-section formation unit, an intermediate processing unit, a roasting repairing unit, a drying unit and a foil collecting unit are sequentially arranged in the electrode foil conveying direction; the foil releasing unit is provided with a conductive roller for electrifying the electrode foil; the multiple sections of formation units corrode and oxidize electrode foils in sections through alternate arrangement of positive and negative electrode grooves, so that oxidation films are layered and stacked, and the thickness and the density are improved; the middle treatment unit enhances the water resistance of the oxidation film through phosphoric acid treatment; the roasting repairing unit realizes multi-stage heat treatment and multi-stage oxidation repairing, so that the structural integrity of the film layer is improved; the drying unit realizes surface drying; the foil collecting unit controls electrode foil conveying through constant tension, and the stability of the treatment process is improved; through whole-process parameter control and film layer segmentation optimization, the uniformity, compactness and reliability of the oxidation film are improved, and the problem that the consistency of the oxidation film is reduced easily due to existing electrode foil oxidation control is solved.

The invention relates to the field of functional coatings, in particular to an anti-condensation coating based on nano aerogel and a preparation method of the anti-condensation coating. The anti-condensation coating based on the nano aerogel at least comprises the following raw materials in parts by mass: 100 to 130 parts of a resin base material, 20 to 35 parts of the nano aerogel, 20 to 35 parts of composite functional particles, 2 to 4 parts of a wetting dispersant, 0.2 to 0.4 part of a defoaming agent, 2 to 5 parts of a coalescing agent and 30 to 60 parts of water. According to the prepared nano aerogel anti-condensation coating, a gradient porous structure is constructed and matched with specific raw materials, a heat bridge is fundamentally blocked, the surface temperature of a base material is remarkably increased, and therefore the condensation phenomenon is efficiently eradicated within the wide temperature and humidity range; and the coating is endowed with extremely high mechanical strength, excellent water resistance and moisture resistance, and excellent durability capable of resisting long-term salt mist and ultraviolet aging.

The invention belongs to but is not limited to the technical field of self-luminescent materials, and discloses a coated modified long-afterglow luminescent material as well as a preparation method and application thereof, the organic-inorganic coated modified material comprises SiO2 and a coupling agent, and the coating thickness is 10-20nm; the long-afterglow fluorescent powder comprises the following components: SrAl2O3: Eu < 2 + >, Dy < 3 + >; the rare earth strontium aluminate material is subjected to organic-inorganic coating, so that the water resistance of the material is greatly improved. The luminescent powder is doped into concrete instead of a part of a cementing material, so that a self-luminescent cement-based material with stable and excellent luminescent property can be obtained. The hydrophobic modification performance is excellent, and the luminous concrete with poor water resistance is not easy to deliquesce, so that the luminous concrete has better luminous performance.

The present invention discloses a nano-calcium carbonate modified polyacrylate emulsion and a preparation method thereof. The emulsion is prepared from the following raw materials in parts by weight: 30-65 parts of an acrylate mixed monomer, 8-30 parts of a functional monomer, 0.1-1 parts of a modified nano-calcium carbonate emulsion, 1-5 parts of a composite emulsifier, 0.08-0.65 parts of an initiator, 2-4.5 parts of liquidambar resin, 0.02-0.2 parts of a chain transfer agent, 0.1-5 parts of a pH regulator, and 100-155 parts of deionized water. The nano-calcium carbonate modified polyacrylate emulsion can be used as a water-based coating, water-based ink, an environmentally friendly adhesive, textile printing and dyeing, leather finishing, building cement mortar, and as a functional material in other fields. The emulsion has the characteristics of fast film formation speed, good water resistance, strong adhesion, fast drying speed, simple process, wide applicability, and ease of industrial production.

The invention relates to the field of insulating materials, in particular to an insulating tubular busbar material and a preparation method and application thereof. The insulating tubular busbar material at least comprises the following raw materials in parts by mass: 80-110 parts of a matrix resin composition, 5-12 parts of a nano filler, 1-2 parts of a dispersing agent, 0.3-0.8 part of an antioxidant, 0.5-1.5 parts of a nucleating agent and 0.3-0.5 part of an ultraviolet absorbent. The polypropylene insulating tubular busbar material prepared by the invention not only has excellent insulating property and thermal stability, but also has good mechanical property, low temperature resistance, water resistance, dielectric property and the like, the comprehensive performance is obviously improved, the requirements of various application scenes can be fully met, the service life is greatly prolonged, and the application prospect is wide. And the maintenance and replacement cost is reduced.

The invention discloses a double-core water-blocking weather-proof photovoltaic direct-current cable and a preparation method thereof, and the cable comprises two cable bodies, and is characterized in that each cable body is provided with a tinned conductor, water-blocking glue, an insulating layer, a water-blocking tape and a sheath layer from inside to outside in sequence; a connecting rib is fixedly arranged between the two sheath layers; the water-blocking tape is arranged outside the insulating layer in a double-layer wrapping mode, and the double-layer water-blocking tape is composed of a PET base material and acrylic acid glue. The insulating layer is arranged in a double-layer mode, the inner layer is XLPE added with 3% of nanometer aluminum hydroxide, the outer layer is XLPE added with 5% of nanometer carbon black, the space between the tinned conductor and the insulating layer is coated with hot-melt water-blocking glue for longitudinal water blocking, the space between the tinned conductor and the insulating layer is provided with a double-layer water-blocking tape for radial water blocking, the water-blocking performance of the cable is effectively improved, the inner layer of the insulating layer is XLPE added with 3% of nanometer aluminum hydroxide, and therefore the water-blocking performance of the cable is effectively improved. And the outer layer is made of anti-ultraviolet and water-resistance XLPE added with 5% of nano carbon black, so that the water resistance and the anti-ultraviolet performance of the cable are improved.

The invention discloses a pipeline bus with a shell adopting a prestressed reinforced concrete composite metal inner wall and a manufacturing method thereof, the pipeline bus comprises three-phase conductors which are symmetrically arranged in a regular triangle space in the axis direction, the inner wall of the shell of the pipeline bus is made of a metal material, and the outer surface of the metal material is covered with prestressed reinforced concrete; the three-phase common-box conductors are symmetrically arranged in a regular triangle shape, so that three-phase counteracting of an electromagnetic field at the circumference of the pipeline bus shell is achieved, the sum of vectors of the electromagnetic field at the circumference of the pipeline bus shell is zero, and the pipeline bus shell can adopt a shell structure with a non-conductive prestressed reinforced concrete composite metal inner wall. The concrete has excellent water resistance and corrosion resistance, and the metal inner wall has an excellent sealing effect, so that the pipeline bus can be placed in water to run for a long time while meeting the requirements of internal pressure and sealing, an underwater three-phase common-box high-pressure pipeline bus is formed, and the service life of the pipeline bus is prolonged. According to the invention, safe power transmission of the long-distance power transmission pipeline in the deep underground space can be realized.

The invention discloses a high-constructability low-emulsion real stone paint modified additive and a preparation method thereof, belongs to the technical field of building coating auxiliary materials, and aims to solve the problems that low-emulsion real stone paint is poor in viscosity stability, high in construction shakeout rate and insufficient in water resistance and the cost is high due to the fact that traditional real stone paint is high in emulsion dosage. All the components have a synergistic effect, the cellulose provides a stable thickening effect, the bactericide prevents microorganism breeding, the defoaming agent eliminates bubbles, the coalescing agent ensures complete film formation under low emulsion, the ethylene glycol improves the freezing resistance and moisture retention, and the multifunctional additive is matched, so that the low-emulsion real stone paint system is adapted, and the constructability and the stability are considered. The preparation method comprises the following steps: preparing a cellulose aqueous solution, compounding functional components, filtering and storing, and carrying out performance verification. Through refined process control, the purity and function stability of the additive are ensured, after the additive is compounded with a stone-like paint base material, the product performance can be remarkably optimized, the emulsion dependence and the production cost are reduced, and both economical efficiency and practicability are achieved.

The utility model relates to an anti-ice-falling device for the surface of a cross tie beam of a bridge tower, which comprises a plurality of anti-ice-falling devices arranged on the surface of the cross tie beam, each anti-ice-falling device comprises an anti-ice-falling clamp, a plurality of raised fixing pieces and a plurality of extended connecting pieces, and the anti-ice-falling clamps comprise a first anti-ice-falling clamp and a second anti-ice-falling clamp. The first anti-ice-falling clamp and the second anti-ice-falling clamp are fixedly arranged on the edges of the left side and the right side of the cross tie beam respectively, and the first anti-ice-falling clamp and the second anti-ice-falling clamp are connected into a whole through the extending connecting pieces and the protruding fixing pieces and fixed to the upper surface of the cross tie beam. The limiting baffles arranged at certain intervals prevent solid accumulated ice from sliding on the upper surface of the bridge tower cross tie beam, meanwhile, lateral drainage of the upper surface of the cross tie beam cannot be hindered, the phenomenon that a traditional drainage channel becomes a'water blocking channel 'due to icing is avoided, and the size of a single block of ice accumulated on the upper surface of the cross tie beam is limited within a safety threshold value as much as possible.

The invention relates to the technical field of containers, and discloses an open top container which comprises a container body. The top cover is arranged at the top of the container main body; the stable frame is arranged on the top cover and comprises a plurality of frame windows; the cover plate mechanisms are correspondingly arranged on the frame windows, each cover plate mechanism comprises two sealing cover plates which are symmetrically hinged to the frame windows, and the two sealing cover plates completely cover the corresponding frame windows after being closed. According to the container, through structural improvement of the drainage grooves of the sealing cover plates and cooperative water resistance of the water baffles, when the sealing cover plates are closed, the water baffles cover butt joints of the sealing cover plates, a rainwater infiltration path can be directly blocked, meanwhile, by means of the drainage effect of the sealing cover plates, accumulated water on the cover surfaces of the sealing cover plates can be rapidly and completely drained, and rainwater accumulation is prevented; in the opening process, the sliding type water baffle can isolate accumulated water above the butt joint at the moment of opening the cover, and the accumulated water is prevented from directly flowing into the frame window.