1046results about How to "Not corroded" patented technology

The invention is a case expanding anchor shank, composed of case expanding anchoring head, anchor shank body, supporting backing plate, fastening nut, washer, and connecting pipeline, where the anchoring head is composed of inner wedge and two clamp pieces, the clamp pieces are fixed in the open slots on two sides of the inner wedge, the lower part of the inner wedge is connected with the anchor shank body, two sides of the top of the inner wedge have the open slots with inclined wedges in the middle of the top, forming double-face wedge sliding slots; the insides of the clamp pieces have inclines to cooperate with the inclined wedges, respectively. The anchor shank is installed and can rapidly form shoring anchoring force, to control rock mass deformation, both acting as permanent both temporary shoring and can be applied to shoring on most conditions of lithoid surrounding rock.

The invention discloses a method for preparing ethylbenzene by reaction of dilute ethylene and benzene, which uses the dilute ethylene in dry gas of oil refinery as raw material, water washing and selective removal of propylene are conducted for the dry gas before the dry gas enters an alkylation reactor in sections, alkylation reaction of the dilute ethylene in dry gas and the benzene proceeds under the circumstances that zeolite catalyst exists, the dry gas and / or low-temperature gas-phase benzene are utilized for taking heat during the alkylation reaction, and the reaction temperature rising is reduced; after the vapor-liquid separation of the alkylation reaction product, tail gas is discharged from the device through low-temperature absorption, and cycle benzene, ethylbenzene, propyl benzene, diethylbenzene and heavy component are sequentially separated from the liquid product through a separation system; the diethylbenzene and the benzene are mixed and enter an anti-alkylation reactor and anti-alkylation reaction proceeds on molecular sieve catalyst for further converting to the ethylbenzene. The invention effectively reduces the benzene consumption and the energy consumption during the course of preparing ethylbenzene by dilute ethylene, the ethylene conversion rate is more than or equal to 99%, the total selectivity of generating ethylbenzene is more than or equal to 99%, the recovery rate of benzene carried by the tail gas is more than or equal to 99.5%, and the xylene content in the ethylbenzene is less than 800 ppm.

The present invention discloses an icing wind tunnel hot gas anti-icing test high-precision simulation method and device. The device comprises a gas source, a pressure reduction device, a filter, an air heater, a multistage electric heating device and a test section in order from a gas input direction to a gas output direction. The gas path behind the pressure reduction device is divided into two paths, one path is heated and then is subjected to flow mixing with the other unheated path, a pneumatic switching valve in an icing wind tunnel plenum chamber is configured to divide the gas path into two paths, gas of one path enters a test section and flows out after passing through a test model to perform flow measurement, gas of the other path is flown through from the external portion of the test section and performs flow measurement, and gas of a model main path and gas of a simulation bypass path are combined into one path after passing through the wind tunnel test section and are exhausted through a flowmeter and a silencer; a cold and hot gas mixing mode is employed to rapidly reduce the high-pressure hot gas behind the air heater so as to reach the effect of rapid temperature adjustment; and the multistage electric heating device is employed to perform high-precision temperature regulation and control so as to perform high-precision temperature adjustment of high-pressure hot gas prior to the high-pressure hot gas entering a test model step by step.

Catalysts of the present invention are not corroded in acidic electrolytes or at high potential and have excellent durability and high oxygen reducing ability.The catalyst includes a metal oxycarbonitride containing two metals M selected from the group consisting of tin, indium, platinum, tantalum, zirconium, titanium, copper, iron, tungsten, chromium, molybdenum, hafnium, vanadium, cobalt, cerium, aluminum and nickel, and containing zirconium and / or titanium.

The invention discloses a method for segmenting characters form a video image, which comprises the following steps: positioning an original character image in the video image; extracting character stroke information from the original character image, obtaining a binary stroke image of the original character image according to the character stroke information; establishing a color model aiming at a character region in the binary stroke image, extracting a color layer image of the character region according to the color model; and removing excess backgrounds and noise by using an improved connection body analysis method with stroke masks so as to obtain the target character image. The invention has little computation and good property and can rapidly and accurately segment the characters from the video image of the complex backgrounds without machine learning.

The invention discloses water montmorillonite nano composite heat insulating waterproof paint and a preparation method thereof. The water montmorillonite nano composite heat insulating waterproof paint comprises the following ingredients in percentage by mass: 30 to 35 percent of nano composite emulsion, 10 to 15 percent of polymer emulsion, 10 to 15 percent of rutile-type titanium pigment, 10 to15 percent of organic modified nano montmorillonite, 5 to 10 percent of nano oxide, 0.3 to 0.35 percent of pH adjusting agent, 0.50 to 0.65 percent of film-forming additive, 0.35 to 0.4 percent of elastic foam killer, 0.20 to 0.30 percent of wetting agent, 0.10 to 0.15 percent of dispersion agent, 0.50 to 0.65 percent of anti-freezing agent, 0.10 to 0.15 percent of sterilization antiseptic and 20to 25 percent of water. The water montmorillonite nano composite heat insulating waterproof paint not only has good compatibility, dispersion performance and good stability, but also has good water resistance, heat insulation, environmental protection, outdoor weather resistance and good adhesive attraction and has an antibacterial self-cleaning function.

The invention relates to the field of functional materials, and in order to solve the problem that a common sponge material possesses hydrophilicity and greatly limits separation of an oil-water mixture, the invention provides a preparation method for a super-hydrophobic super-oleophylic sponge material. According to the preparation method, a modified Fe3O4 particle is firstly prepared, and then the super-hydrophobic super-oleophylic sponge material is prepared. The bonding fastness between a coating material and a substrate material is improved, and the super-hydrophobic super-oleophylic sponge material with applied magnetic-field response function characteristic is prepared and used for efficient separation of a mixture of oil or an organic solvent and water, and application of super-hydrophobic super-oleophylic materials in industrialized production is promoted.

The invention provides a capillary crystalline waterproofing material which comprises silicate cement, quartz sand, a crystal master batch, latex powder, other active materials, and the like, whereinthe ratio of aggregate cement to the quartz sand is 1:1.89; the crystal master batch is dehydrated gypsum or calcium chloride, and the like; and the proportion of the crystal master batch is between 3percent and 7 percent. The waterproofing material has the bonding force, the surface adhesive force, quantities of formed crystals, the strength and the anti-penetration force of concrete and can ensure that concrete structures cannot be damaged. The capillary crystalline waterproofing material has wide range of application, is applied to projects of basements, civil air defenses, tunnels, ports,wharfs, swimming pools, dams, irrigation ditches, and the like, solves the problems of concrete projects, achieves the purpose of permanent water proofing and also protects concrete and reinforcing steel bars from corrosion.

The invention relates to carbon-coated cobalt-tungsten double-metal carbide, a preparation method thereof and application thereof to hydrogen generation through high-efficiency electro-catalytic cracking of water, belonging to the field of application technology of double-metal carbide synthesis and hydrogen generation through electro-catalytic cracking of water. A mixture of a cobalt-tungsten double-metal compound and nitrogen-rich organic matter is calcined by one step to obtain a target material. The preparation method is simple and controllable, the raw materials are cheap, the sample property repeatability is good, and the method is suitable for large-scale production. The prepared cobalt-tungsten double-metal carbide is uniformly distributed in a thin amorphous carbon layer in nano-particle (5-20nm) form; a carbon coating layer can effectively prevent active substances from erosion caused by electrolyte, and thus the carbon-coated cobalt-tungsten double-metal carbide has excellent stability in electrolytes (including seawater without purification treatment ) under different conditions; more importantly, the catalyst in a total-pH value range can be combined with a catalyst for oxygen generation through electro-catalytic cracking of water, and therefore, the energy utilization rate of converting electrical energy to hydrogen energy is improved really.

A drag reduction superhydrophobic coating and a preparation method thereof belong to the technical field of functional nanometer material application. A base of the drag reduction superhydrophobic coating adopts electroless metal deposition technique, a precious metal micro-nanometer binary grading composite structure is constructed on the base and decorated by a low surface energy material, a water static contact angle of the coating is larger than 150 degrees, and a rolling angle is smaller than 5 degrees. The drag reduction superhydrophobic coating is used for a model with motive power by itself, running speed of the model is obviously increased, and drag reduction rate is as high as 20%. The drag reduction superhydrophobic coating has good corrosivity resistance and can resist corrosion of strong acid and strong base solutions. The drag reduction superhydrophobic coating has repairability, and the preparation method can enable hydrophobicity of damaged areas to be rapidly recovered in a short period. The preparation method of the drag reduction superhydrophobic coating is simple, short in preparation period, and high in drag reduction rate.

The invention relates to an aluminum-magnesium lightweight refractory material and a preparation method thereof. The technical scheme comprises the following steps of: taking 60-85wt% of microporous corundum particles as an aggregate, taking 5-30wt% of fine corundum powder, and taking 2-10% of magnesium oxide micropowder and 4-9wt% of alpha-alumina micropowder as matrix materials; adding the matrix materials into the aggregate, additionally adding an adhesive which is 3-10wt% of the sum of the aggregate and the matrix materials, stirring uniformly and then mixing and milling for 15-30 minutes by a mixing mill, and molding by a brick pressing machine; and thermally processing the molded green body for 12-24 hours at 100-220 DEG C to obtain the aluminum-magnesium lightweight refractory material. The product prepared by the preparation method has the characteristics of small volume density, low apparent porosity, small average aperture, high refractoriness, large high-temperature strength, low thermal conductivity, good thermal shock resistance and strong capability resistant against the corrosion of media such as steel slag; and the prepared product is applicable to a working lining of a high-temperature industrial furnace.

The invention provides a carbon-coated cobalt sulfide material as well as a preparing method thereof and application of the carbon-coated cobalt sulfide material as a catalyst in the aspect of hydrogen production through the electric catalytic cracking of water and belongs to the fields of catalyst synthesis technologies and application. An organic matter rich in sulfur is used as a sulfur source and a carbon source, a cobalt salt is used as a cobalt source, the organic matter and the cobalt salt are forged in an inert atmosphere after being mechanically mixed uniformly, and the carbon-coated cobalt sulfide material can be obtained. The preparing method is simple and controllable, adopts cheap raw materials, has good sample repeatability, spends short time in the synthesis process, has low requirements on equipment and is suitable for massive production. As an active substance is effectively protected by a carbon coating layer from electrolyte corrosion, the electric conductivity of the material is improved, and accordingly, the material shows excellent hydrogen production electric catalysis performance in acid, neutral as well as alkaline electrolytes. The most important is that the development of the catalyst capable of being used in the whole pH range opens a novel path for the preparation of a cheap, efficient and environment-friendly non-noble metal electric catalysis material for hydrogen production.

The invention provides an aluminum alloy battery box body for a new energy automobile and a preparation method of the aluminum alloy battery box body. The aluminum alloy battery box body comprises a plurality of combined box bodies and a box cover, wherein the combined box bodies and the box cover are assembled through the matching of mounting holes in box walls of the combined box bodies and bolts; each combined box body is of a structure which is defined by a bottom plate and a box wall and is provided with an opening at one end, wherein each bottom plate is fixedly provided with a plurality of bottom supporting beams; each box wall comprises a box wall main body and transvers ribs located at the top and bottom of the box wall main body; each box wall main body is of a flat plate structure which is internally provided with a cavity; each cavity is internally provided with a reinforcing rib. The battery box body produced by the method provided by the invention has the advantages of light weight, good sealing performance, excellent heat dissipation effect and high anti-collision impact force.

The invention relates to a portable lottery ticket machine, which comprises a main case body, a case body cover, a display, a host machine, a printer and a keyboard. The display is arranged on the case body cover, the host machine and the printer are arranged in the main case body, a host machine seal cover is arranged above the host machine, the keyboard is arranged on the host machine seal cover, the printer and the keyboard are respectively connected with the host machine through different data lines, and the portable lottery ticket machine is also provided with a case body locking device used for locking the case body cover and the main case body. The portable lottery ticket machine can carry out movable ticket sale and is suitable to moving lottery ticket sale for underdeveloped areas or small towns, villages and even peripheral mountain areas.

The invention opened an injected anchor arm with the antiseptic spigot, which is composed of the anchor arm body, the connection part of the porthole, the spigot, anchoring head, holding pad, the tight nut and the gasket. The invention can form the supporting anchorage power quickly to control the deforming of the terrene; also it can form a supporting system of multi-antiseptic barrier with the spigot and the double injected plasma.

The invention relates to a slave-main type marine environment detection intelligent robot. The slave-main type marine environment detection intelligent robot consists of two major parts: a water surface supporting main ship and an unmanned underwater vehicle, wherein the water surface supporting main ship comprises a hydraulic propeller, a small arm, a small arm rotating joint, a supporting plate, a wireless communication transceiver, a ship body, a docking gripper, a central processing cabin, a pre-positioned sensor, a monitoring cabin, a spring buffer layer, a big arm rotating joint, a big arm, a brachiopod rotating joint, a strong-force bracket and a long buoy; and the unmanned underwater vehicle comprises a stern rudder, a caudal fin, an air guide sleeve, a connecting umbilical cable, a vertical propeller, a clamping port, a horizontal propeller, a machine body, an inductor, a detector and a mounted platform.

The present invention provides a flexible display panel, a preparation method thereof and a flexible display device, and belongs to the technical field of flexible display. The flexible display panelprovided by the present invention comprises: a flexible substrate which includes a bending area and a display area and a non-display area on both sides of the bending area; the display area is provided with a sub-pixel array and a signal line, and the non-display area is provided with a driving chip; an isolating insulation layer which is arranged on the flexible substrate; a trench which is located in the bending area and runs through the isolating insulation layer; a first buffer layer which is filled in the trench; a lead wire which is arranged on the isolating insulation layer of the non-display area and the first buffer layer and is used for electrical connection between the driving chip and the signal line; and a second buffer layer which is located on the lead wire and at least covers the bending area. The display panel can adjust the stress neutral layer of the bending area, reduce the stress on the lead wire and improve the folding performance.

A material used for making hard corrugated PVC pipe is prepared from PVC (100 pts.wt.), trisalt (6.4-6.8 pts.wt.), lead stearate (0.42-0.47 pts.wt.), barium stearate (1.4-1.7 pts.wt.), stearic acid (0.42-0.47 pts.wt.), microcrystal paraffin (0.36-0.41 pts.wt.), polyvinyl wax (0.58-0.62 pts.wt.), ACR (401) (1.9-2.1 pts.wt.), chlorinated polyethylene (5.8-6.3 pts.wt.), superfine calcium carbonate (9-11 pts.wt.) and AC 316 (0.28-0.33 pts.wt.). Its advantages are high lubricating performance, impact strength, ring rigidity and Vicat softening temp, good demoulding nature, and excellent low-temp plasticity.

The fabric with compounded metal nickel and copper is prepared with dacron or nylon fabric, and through surface roughening, sensitizing, activating, chemically plating one layer of metal nickel, electroplating one intermediate copper layer, and finally electroplating one protecting nickel layer. The formed Ni-Cu-Ni layers have nickel amount o 5-20 g / sq m and Cu / Ni weight ratio of 1.5-3; and the metal fabric has excellent electromagnetic shielding effect on low frequency electromagnetic wave, and the shielding effect is 60-90 dB in the frequency range of 10 KHz-3 GHz, and 50-70 dB in the frequency below 10 KHz.

The invention discloses an on-sea floating-type wind power generation platform capable of collecting wave energy and a gathering group. The power generation platform comprises a draught fan buoy floating on the sea surface, and the draught fan buoy is perpendicularly provided with a wind driven generator. The power generation platform is characterized in that multiple wave buoys arranged around the draught fan buoy are further included; the opposite faces of each wave buoy and the draught fan buoy are parallel to each other and are connected, a plurality of transmission devices are oppositely arranged at the joints of the wave buoys and the draught fan buoy, a plurality of corresponding hydraulic cylinder power generation devices are arranged in cavities of the draught fan buoy and the wave buoys, and the transmission devices are connected with the corresponding hydraulic cylinder power generation devices; the transmission devices drive the hydraulic cylinder power generation devices to convert the wave energy into electric energy through relative rotation generated when the wave buoys and the draught fan buoy move vertically along with waves. The power generation platform can achieve combined power generation of wind energy and the wave energy and is few in energy conversion step, simple in structure, easy to achieve and convenient to maintain, and the power generation platform which is simple, good in stability and high in benefit is supplied to a deep sea on-sea power generation field.

The invention discloses a non-sticky nonrust iron pan, comprising a metal base, wherein a FeCr chromium carbide or NiCr chromium carbide or CoCr chromium carbide metal material layer is meltallized on the working surface of the metal base, a non-sticky layer which is provided with micro holes and is easy to clean is formed, and a nitriding layer is formed on the surface of the metal base communicated with the micro holes by virtue of nitriding treatment. The invention also discloses a method for manufacturing the non-sticky nonrust iron pan, comprising the following steps: (1) cutting, stretching, removing oil and cleaning, decontaminating and dewaxing, and stoving; (2) coarsening; (3) forming the non-sticky layer which is easy to clean on the working surface; (4) forming the nitriding layer by the nitriding treatment; and (5) carrying out cleaning, stoving and the like. The non-sticky nonrust iron pan disclosed by the invention has the advantages of sticky resistance, rust resistance, white appearance, energy conversation and the like.

The invention discloses a lithium ion battery anode material with surface hydrophobicity and a preparation method of the lithium ion battery anode material, relates to a lithium ion battery anode material prepared according to a surface modification technology and a preparation method thereof, and aims to solve the problems that the conventional anode material is poor in recycling performance, storage performance and compatibility with an electrolyte. The lithium ion battery anode material with the surface hydrophobicity has an organic hydrophobic layer on the surface, wherein the hydrophobic layer has the thickness of 0.5-20nm and the mass content of 0.1-10%; the preparation method of the lithium ion battery anode material with the surface hydrophobicity comprises the following steps: uniformly mixing an organic matter with hydrophobicity and an organic solvent, stirring together with an anode material at 30-80 DEG C, carrying out a reaction to obtain a mixture, filtering the mixture to obtain a solid filter cake, and treating the solid filter cake according to two temperature gradients to obtain the lithium ion battery anode material with the surface hydrophobicity. The lithium ion battery anode material with the surface hydrophobicity, prepared by the preparation method provided by the invention, is applied to a lithium ion battery.

The invention relates to a light composite electro-catalysis energy-saving anode for non-ferrous metal electro-deposition, which is composed of a metal substrate, an interlayer and a composite electro-catalysis superficial layer in sequence from inside to outside, wherein the metal substrate is Al or Al base alloy (Al-M1), the interlayer is a composite layer Al2O3-(Pb-M2) composed of Al2O3 or Pb base alloy, and the composite electro-catalysis superficial layer is a composite deposite (Pb-M2)-M3Ox composed of Pb or Pb base alloy and oxide catalyst or a composite deposite PbO2-M3Ox composed of PbO2 and oxide catalyst. The preparation method of the anode comprises the following steps: preparation of the metal substrate: carrying out anodic oxidation on the metal substrate surface and prefabricating a multihole Al2O3 layer; then performing an electro-deposition Pb or Pb base alloy layer on the multihole Al2O3 layer; and plating a (Pb-M2)-M3Ox or PbO2-M3Ox composite superficial layer on the surface of the Pb or Pb base alloy layer. The anode prepared by the invention can effectively reduce production energy consumption, improve cathode product quality, lower labor intensity, is suitable for industrialized production and can replace the Pb base alloy anode applied in the existing industry.

The invention provides low-temperature lubricating grease and a preparation method thereof. The low-temperature lubricating grease comprises mineral oil, synthesized oil, fatty acid soap, an antioxidant and an antirust agent. Compared with the prior art, the low-temperature lubricating grease is characterized in that semi-synthesized oil obtained by mixing III-type oil and ester oil and / or PAO (poly alpha olefin) oil is used as basic oil; the III-type oil has a high viscosity index and is high in high-temperature and low-temperature performance, oxidation stability, heat stability and evaporation performance; the ester oil and the PAO oil also have high viscosity indexes and are high in low-temperature performance; moreover, a mixture of lithium stearate and 12-hydroxy lithium stearate is used as a thickening agent for thickening the semi-synthesized oil, so that the low-temperature lubricating grease is high in low-temperature performance, and a used component can be normally lubricated under low temperature; the applicable temperature range is large; furthermore, the thickening agent is easy to synthesize.

Provided is an OLED display panel on which a retaining wall area is defined. The display panel includes a substrate, several inorganic layers, several organic layers, a light emitting layer, a packaging layer and a via hole. The via hole penetrates through the inorganic layers and the organic layers, and is located in the retaining wall area. At least one groove is arranged in the side wall of thevia hole. The light emitting layer is discontinuous at the grooves. By forming a deep via hole between the scribe line edge and the display area edge of a through hole and forming grooves in the sidewall of the via hole, the organic light emitting layer vapor-plated subsequently is disconnected at the grooves, the continuity of the organic light emitting layer at the through hole is blocked, thedisplay area is protected from the erosion of water and oxygen, and the reliability of the product is improved.

The invention provides a method for quickly unsealing a small component, which comprises the steps that: A. a component sample to be unsealed is confirmed, and the position of a corresponding chip is determined; B. a foil is used for fixedly wrapping the component sample, and the foil on the position on the component sample to be unsealed is removed; C. corrosive liquid for unsealing is prepared and heated; D. a plastic seal of the component sample is removed; E. the unsealing is observed; and if the plastic seal is not fully removed, Step E is repeated until the plastic seal is removed thoroughly; and F. the component is arranged in ultrasonic wave to be cleaned and dried, and the unsealing of the component is completed. The method can simultaneously unseal a plurality of component samples and has high unsealing efficiency. By using the method, the position and the size to be unsealed can be randomly determined, the pins of the component samples are ensured not to be corroded, a follow-up electrical test is convenient to conduct, the corrosion degree of the component sample can be observed at any time, and lines are ensured not not to damaged.

Disclosed are: a positive electrode current collector laminate which can protect a positive electrode current collector from corrosion without deteriorating the battery properties thereof even when used under high-voltages; and a lithium secondary battery. Specifically disclosed are: a positive electrode current collector laminate comprising a positive electrode current collector (A) and an electrically conductive protective layer (B) provided on the positive electrode current collector (A) and comprising a fluororesin (b1) and an electrically conductive filler (b2); and a lithium secondary battery equipped with the positive electrode current collector laminate.

The invention discloses a direct-current (DC) 1500V four-rail mounting structure applied to urban rail transit. The structure comprises a traction rail, a return-current rail and two rows of running rails, wherein an insulation bracket is arranged on one side of the running rails; and the traction rail and the return-current rail are clamped in insulation blocks of the insulation bracket. In a DC traction four-rail power supply system for the urban rail transit of the invention, the four rails (the return-current rail) are insulated from other facilities such as a track bed and the like completely without stray current, so stray-current resistant measures and facilities are no longer taken into consideration. The DC1500V four-rail mounting structure applied to the urban rail transit has the greatest advantages of protecting structural reinforcing steel and metal pipelines in stations, tunnels and the like from being corroded by the stray current, prolonging the service life of each of tunnels, bridges, pipelines and the like in rail transit and guaranteeing the safety of an urban rail transit system.

The invention discloses a water-soluble copper protective agent, a preparation method and a suing method thereof. The preparation method comprises the following steps of: preparing 0.7 to 0.8 weight percent of film forming material and 16 to 19 weight percent of cosurfactant into solution A; preparing 2.8 to 3.6 weight percent of surfactant and the balance of water to prepare solution B; and performing microemulsion on mixture of the solution A and the solution B. The using method comprises the following steps of: heating the water-soluble copper protective agent to the temperature of 60 to 70 DEG C; immersing a clean and dry workpiece in the heated water-soluble copper protective agent for 5 to 10 minutes; taking the workpiece out; and drying, packing and warehousing. The water-soluble copper protective agent has high corrosion resistance and stable electric property, is safe, environmental-friendly and low-cost.