202results about How to "Improve anti-corrosion ability" patented technology

The invention discloses foam concrete. The foam concrete comprises following raw materials in parts by mass according to a formula: 210-300 parts of cement, 1.0-1.5 parts of a water reducing agent, 5.1-5.5 parts of an early strength agent, 2.1-2.9 parts of a coagulant, 1.7-3.4 parts of fibers, 12-20 parts of a chemical foaming agent, 0-90 parts of superfine slag powder and 100-160 parts of water, wherein the superfine slag powder is formed by aluminosilicate glass particles smaller than 15 mu m, and the specific surface area is 450-500 m<2>*kg<-1>. The compressive strength of the foam concrete is improved on the premise that the foam concrete keeps low density.

The invention discloses a water-borne anticorrosion epoxy primer and a preparation method thereof. The water-borne anticorrosion epoxy primer comprises a component A and a component B, wherein the component A comprises the following subcomponents in parts by weight: 34-50 parts of water-borne epoxy resin, 0.2-0.5 part of a flash rust preventer, 0.2-0.5 part of an anti-settling agent, 0.2-0.5 part of a wetting agent, 0.5-1.5 parts of a stabilizer, 0.2-0.5 part of a defoaming agent, 0.2-0.5 part of a wetting dispersant, 4-9 parts of iron oxide red, 12-19 parts of micaceous iron oxide, 4-9 parts of composite phosphate, 7-12 parts of talcum powder, 8-15 parts of distilled water and 0.5-2 parts of a nano-sized inorganic filler; the component B comprises the following subcomponents in parts by weight: 43-59 parts of a water-borne epoxy curing agent, 1.5-3 parts of a flash rust preventer and 39-54 parts of distilled water; the component A and the component B are blended according to a weight ratio of (3-7): 1. The water-borne anticorrosion epoxy primer adopts a unique formula and a proportion design; compared with the prior art, the water-borne anticorrosion epoxy primer has the advantage as follows: the overall performance, especially the salt spray resistance, of the water-borne anticorrosion epoxy primer is effectively improved.

The invention relates to humid rusted solvent-free graphene modified epoxy paint and a preparation method thereof. The paint is prepared from a material A and a material B, wherein the material A is colored paint; the material B is a curing agent; graphene-oxide nano-rods are added into the colored paint; in the aspect of selecting epoxy resin, two types of epoxy resin including solvent-free epoxy resin E-51 and organic zinc-enriched epoxy resin, which have complementary properties, are selected, so that the adhesion force and antirust effect of the paint and a substrate are enhanced; in the aspect of selecting the curing agent, two curing agents are adopted; a polyamide curing agent is added on the basis of a cashew nut shell oil modified phenolic aldehyde amine curing agent which is researched latest, so that the humid rusted solvent-free graphene modified epoxy paint is prepared.

The invention discloses a hexagonal boron nitride epoxy compound anticorrosion coating and a preparation method and application thereof. The anticorrosion coating is mainly composed of hexagonal boron nitride, polyaniline nanofiber, epoxy resin, a disperse medium, a coating additive, an epoxy resin curing agent, a solvent, etc. The hexagonal boron nitride epoxy compound anticorrosion coating provided by the invention has good storage stability, is not easy to sink to the bottom, has simple preparation process, is low-cost, and is suitable for large-scale production. A coating layer formed by the coating has excellent barrier property and lasting corrosion resistance. The product has a good application prospect in the industries of chemical engineering, petroleum, electric power, ship, light textile, storage, transportation, spaceflight, etc.

The invention provides an aluminium wiredrawing lubricant and a preparation method thereof. The lubricant is characterized by comprising the following raw materials by weight parts: 0.3-0.4 parts of monoethanolamine, 0.6-0.8 parts of triethanolamine, 0.2-0.3 parts of mercapto benzimidazole, 1-2 parts of caprylic-capric acid blend, 1-2 parts of sodium dodecyl sulfate, 1-2 parts of dibutyltin dilaurate, 1-2 parts of zinc acetate, 1-2 parts of tung oil, 2-3 parts of methyl trimethoxy silane, 3-4 parts of a film forming auxiliary agent and 150-160 parts of water. According to the invention, the tung oil is added to promote lubricity, water base is used to play a relatively good heat dissipating effect, the triethanolamine is added to improve an anti-corrosion effect, and the methyl trimethoxy silane is combined with the mercapto benzimidazole, the caprylic-capric acid blend and the film forming agent to improve a film forming performance and prolong an anti-corrosion time of the aluminium conductor after the wiredrawing.

The invention relates to a high corrosion resistance reinforced concrete corrosion inhibitor added with rare earth cerium ion, which comprises the following components in percentages by weight: 0.06-0.10% of sodium molybdate, 0.03-0.12% of sodium dodecyl sulfate, 0.25-0.45% of thiocarbamide, 0.03-0.12% of cerous nitrate and the balance of water. Each component is soluble in water, when the concrete is stirred, each component is added into a stirring device sequentially according to the adding sequence of the raw materials, but when water is added, each component is added in water to dissolve according to the requirement in the formulation. According to the invention, the corrosion of reinforcement in the reinforced concrete can be slowed down or restricted, the high corrosion resistance reinforced concrete corrosion inhibitor has the characteristics of high absorption force of the corrosion inhibitor and high corrosion inhibiting property, and is environment-friendly, the corrosion of reinforcement in the reinforced concrete can be inhibited effectively, especially the high corrosion resistance reinforced concrete corrosion inhibitor has great significance on the coastal reinforced concrete structures and the reinforced concrete structures having higher requirements on chloridion ion corrosion resistance.

The present invention discloses an aluminum alloy degreasing and polishing two-in-one treatment solution and a method for degreasing and polishing aluminum alloy. The aluminum alloy degreasing and polishing two-in-one treatment solution comprises the following components: 1-20 g/L of oxalic acid, 1-5 g/L of hydrofluoric acid or hydrofluoride, 0.001-0.01g/L of a surfactant and 0.05-0.15 g/L of an auxiliary agent. The method for treating the aluminum alloy by using the treatment solution comprises the following treatment steps: immersing to-be-treated aluminum alloy profiles into the two-in-onetreatment solution; initially reacting until bubbles begin to emerge; and then continuously immersing for three to five minutes to obtain the aluminum alloy profiles with smooth surfaces. The presentinvention is used to treat aluminum alloy profiles, which can not only complete degreasing and polishing in one step, but also improve the corrosion resistance and pollution resistance of the profiles, improve the high mirror reflection characteristics of the aluminum profiles and increase the weight of the profiles. Moreover, the treatment solution does not need to be replaced and can be recycled.

The invention discloses corrosion-resistant long-acting antirust liquid. Raw materials of the corrosion-resistant long-acting antirust liquid comprise, by weight, 35-45 parts of compound corrosion inhibitor, 0.1-0.3 parts of a surface active agent, 0.2-0.4 part of hydroxy propyl cellulose, 0.3-0.5 part of polyethylene glycol, 0.1-0.3 part of a defoaming agent, 1-3 parts of sodium gluconate, 0.2-0.3 part of benzisothiazolones and 50-54 parts of water, wherein raw materials of the compound corrosion inhibitor comprise phytic acid, sodium molybdate, diethanol amine, monoethanolamine borate and 2-methyl benzimidazoline. According to the corrosion-resistant long-acting antirust liquid, by means of cooperation of the phytic acid, the sodium molybdate, the diethanol amine, the monoethanolamine borate and the 2-methyl benzimidazoline, the film forming speed of a protective film is increased, the corrosion speed is decreased, the thickness of the protective film is increased, corrosion media are prevented from making contact with metal, and the corrosion-resistant long-acting antirust liquid is made to have good corrosion-resistant performance and long-acting antirust performance.

The invention discloses a double-cylinder and plate combined type ocean experimental platform and a collecting and deploying method thereof, and belongs to the technical fields of ocean survey and ocean engineering equipment. The ocean experimental platform is characterized in that components mainly adopt fiber reinforced plastics as the material; instruments and devices can be mounted on a working panel, and a good working environment is provided; cylinders are arranged on the two sides of the working panel; airbags are mounted in the cylinders; a plurality of U-shaped diaphragm plates are longitudinally arranged on the platform; the structure form is simple and novel, and the longitudinal bending strength and sit-on bottom stability can be guaranteed; the platform rising and falling is controlled through adjusting the inflating volume of the airbags, and the method is economic and convenient; handing points are arranged at the two ends of each cylinder; and besides, the double-cylinder and plate combined type ocean experimental platform is equipped with a floating transportation platform for operation assistance, so that the sinking process of the platform is guaranteed to be controllable, and the damage of instant impact to the structure during platform bottom resting is avoided. According to the platform, the structure form is novel, the weight is light, the manufacturing technology is simple, the magnetism resistance is good, the erosion resistance is high, and the platform is a reliable, multi-functional, efficient and economic bottom resting type ocean experimental platform.

The invention discloses a method for depositing a boron carbon nitrogen film on a stainless steel substrate. The film can resist corrosion of the ionic liquid. The method adopts the medium frequency magnetron sputtering physical vapor deposition technology to directly deposit a layer of boron carbon nitrogen film on the stainless steel substrate.

The invention discloses a wear and corrosion resisting repair method for a draught fan. The method comprises the process of descaling cleaning, sand blasting or shot blasting, cleaning and drying, wetting bottoming, cleaning and drying, defect repair, wear resisting repair, drying curing, grinding and polishing, impeller dynamic balancing, cleaning and drying, smearing of a first layer of finishing coat, drying curing, smearing of a second layer of finishing coat, drying curing and repair finishing. The wear and corrosion resisting repair method has the beneficial effects that the repair technology is superior to conventional welding repair and machining repair manners, deformation is avoided, no internal stress is generated, the aims of restoring the equipment use function and prolonging the service life are achieved, and the effects of reducing cost and achieving environment friendliness and energy saving are also achieved.

The invention discloses a method for preparing stainless steel pad paper, which comprises that: adding non-ionic intensifier into paper pulp and processing raw paper preparation and compression on the long-network multi-cylinder machine; compounding the high polymer with high vitrification temperature on the back surface of basic paper; mixing the morpholine oligomer vapour phase inhibitor in 20-30 deals, the dimethyl piperazine in 5-10 deals, the sodium tungstate in 5-10 deals, the blue dye in 0.001-0.01 deals and the deionized water in 50-70 deals to prepare the inhibitor; adding silicon porous absorption material, polyacrylic acid salt disperser and modified macromolecule film former to be plated on the surface of basic paper; drying paper with hot wind, to be burnished, coiled and cut. The invention utilizes the high polymer with high vitrification temperature to improve the mechanical strength and air tightness of basic paper with the functions of moisture-proof and anti-leakage. And the invention plates the metallic inhibitor suspend on the surface of basic paper, therefore, the time of anti-rust can reach 5-10 years.

The invention discloses an ITO test board. The test board comprises a glass substrate, an ITO conducting layer and an insulating layer, wherein, the ITO conducting layer is coated on the glass substrate and the insulating layer is coated on part or the whole of the surface of the ITO conducting layer; and the ITO test board can simulate the ITO electrode routing of a SIN or a CSTN liquid crystal display. The invention also discloses a test method by using the ITO test board, which is as follows: the ITO test board is placed in environment with predetermined temperature and humidity, working voltage is conducted to the ITO electrode for a certain time, and the corrosion condition of the ITO test board is evaluated. The adoption of the scheme of the invention can effectively test and evaluate the factors which influence the corrosion of ITO glasses.

The invention relates to a metal surface aluminizing technique, in particular to a low-temperature oil casing steel surface pack cementation aluminizing technique. The invention at least solves the following problems that: the complex change of the variety and content of aluminizing agent in the aluminizing technique needs to be reduced by changing aluminizing agent, the property stability can hardly be controlled, and the cost is high. The adopted technical scheme is as follows: the low-temperature oil casing steel surface pack cementation aluminizing technique sequentially includes the following steps that: the surface nanocrystallization of an oil casing steel sample: a SNC-2 metal surface nanocrystallization tester is utilized to nanocrystallize the surface of the oil casing steel sample in order to obtain a nano-structured surface layer with the thickness of 50Mu m to 90Mu m; the aluminization of the surface-nanocrystallized oil casing steel sample: aluminizing process parameters are as follows: the aluminizing temperature is 380 DEG C to 500 DEG C, and the aluminizing time is 6 hours to 10 hours; and the composition and content of the aluminizing agent are as follows: Al powder as metal source, Zn powder, NH4CL as activating agent and Al2O3 as filler. The aluminizing temperature is low; the variety of aluminizing agent is simple, the content can be easily controlled, and the process stability is high; and the effect is good.

The invention provides an anti-corrosion heat dissipation coating used for LED lights and a preparation method thereof. The coating is characterized by comprising the following raw materials by weight parts: 45-48 parts of organic silicone resin, 24-26 parts of polyamide polyamine epichlorohydrin resin, 32-34 parts of aluminium nitride, 50-56 parts of xylene, 25-28 parts of butyl acetate, 2-3 parts of urotropine, 3-5 parts of phenyltriethoxysilane, 2-3 parts of aniline methyl triethoxysilane, 10-20 parts of carbon black N 339, 5-15 parts of carbon black N 660, 1-2 parts of triglycidyl isocyanurate, 5-8 parts of sebacic acid propanediol polyester, 3-5 parts of phthalic acid polyester, 2-3 parts of isoprene, 4-6 parts of 2-hydroxy propyl acrylate, 3-4 parts of propylene glycol, 1-2 parts of tert-butyl hydroperoxide, 1-2 parts of m-amino methylamine, 1-2 parts of ethylene diamine and 3-4 parts of a film forming agent. According to the invention, the urotropine is added into the raw materials to improve the anti-corrosion performance of the coating, so that the coating can be applied in various contaminated environments, and high temperature resistant and salt spray resistant capabilities of the coating can be improved.

The invention discloses an electric cabinet wear resistance anti-corrosion repair method. The method comprises steps of dirt cleaning, damage processing, cleaning and drying, corrosion conversion, defect repair, polishing and smoothing, anti-corrosion coating, surface painting and completion acceptance. The method is advantaged in that online conduction can be carried out when repair can be accomplished without power cut and without any influence on production, anti-corrosion service life of an electric cabinet after repair is improved by 2-3 times, and remarkable effects are realized.

The invention discloses an acoustically transparent membrane module with high resistance to water pressure and a manufacture method thereof; the acoustically transparent membrane module with high resistance to water pressure comprises acoustically transparent expanded polytetrafluoroethylene coating film with high resistance to water pressure, pressure-sensitive tape and release paper; the acoustically transparent expanded polytetrafluoroethylene coating film with high resistance to water pressure comprises a coating layer with gas molecular micropores and an expanded polytetrafluoroethylene film layer, one side of the expanded polytetrafluoroethylene film layer is coated with the coating layer with gas molecular micropores, the outer side of the pressure-sensitive tape is provided with the release paper, and the pressure-sensitive tape is fitted to both the front and back of the acoustically transparent expanded polytetrafluoroethylene coating film. The manufacture method comprises: manufacturing hydrophobic oleophobic expanded polytetrafluoroethylene film; preparing coating liquid with gas molecular micropores; preparing the acoustically transparent expanded polytetrafluoroethylene coating film with high resistance to water pressure; preparing the acoustically transparent membrane module with high resistance to water pressure. The acoustically transparent membrane module with high resistance to water pressure has very high resistance to water pressure, can ensure conservations from a speaker are clear and distortionless, and has huge application market potential in terms of consumer electronics.

The invention relates to the field of foundation treatment, in particular to a spiral self-drilling steel pile capable of being reinforced through diameter increasing, and a construction method of thespiral self-drilling steel pile. The spiral self-drilling steel pile capable of being reinforced through diameter increasing comprises a spiral pile with a center shaft being provided with spiral blades, and further comprises a lengthening rod composed of one or more lengthening sections; the upper end of the spiral pile is connected with the lower end of the lengthening rod, wherein diameter-increasing guiding discs are arranged on the one or more lengthening sections in the lengthening rod; and the diameter-increasing guiding discs are each in a funnel shape, openings of the diameter-increasing guiding discs face upwards, and the bottoms of the diameter-increasing guiding discs are connected with the rod wall of the lengthening rod in a sealed mode. Through pile side grouting, slurry reaches the diameter-increasing guiding discs to form a reinforced body, the vertical limit bearing capacity, critical buckling load and transverse carrying capacity of the pile are improved, and compared with the mode for improving the bearing capacity through methods of increasing the number of the blades, the diameter of the blades and the pile length, the more economical and applicable effects are achieved so as to enable a foundation to be more stable.

The invention discloses a special alloy-sheathed through earth wire for a railway signal system. The special alloy-sheathed through earth wire comprises a cable core which is of an integrated round structure formed by twisting a plurality of soft round copper wires, the cable core is coated with a brass band, and a tubular outer sheath is formed by the coating brass band. The manufacturing method for the through earth wire includes the following steps that the soft round copper wires with the same conductor diameter are selected and twisted into the cable core according to a specified pitch in a specified arrangement mode; stress of the required number of conductors is adjusted, and the conductors are shaped in a twisted mode; the twisted cable core is pressed through a die, so that the pressed round structure is formed for the cable core; a round metal tube is formed by the brass band through multiple dies, the cable core is coated with the metal tube, a sealed tube is formed by the metal tube after the argon arc welding process is conducted, and the welded brass band metal tube is drawn; the drawn through earth wire is placed in an annealing cavity with the temperature of 800 DEG C for annealing; the annealed through earth wire is passivated, and the passivated through earth wire is rinsed and dried.

The invention discloses a metal surface rust inhibitor and a preparation method thereof. The metal surface rust inhibitor comprises dodecenylsuccinic acid, benzotriazole, zinc naphthenate, N-ethyl-N-phenyl zinc dithiocarbamate, sodium oleate, ethylene glycol, inositol hexaphosphate, aluminium powder, barium sulfate, hydroxy propyl methyl cellulose, dimethylaminoethyl acrylate, sodium allysulfonate and water. The preparation method comprises the following steps: adding dodecenylsuccinic acid, benzotriazole and zinc naphthenate into water, stirring the mixture I uniformly, adding N-ethyl-N-phenyl zinc dithiocarbamate, sodium oleate, ethylene glycol, inositol hexaphosphate, aluminium powder, barium sulfate into the mixture I, adding hydroxy propyl methyl cellulose, dimethylaminoethyl acrylate and sodium allysulfonate into the mixture II, and adding rest components into the mixture III to obtain the rust inhibitor. The rust inhibitor provided by the invention can increase the corrosion resistance of a metal surface and improve the moist isolating property and the air isolating property of a protective layer.

The invention relates to the technical field of assembled steel tube high-strength concrete columns, and discloses the assembled steel tube high-strength concrete columns and a construction method thereof. The assembled steel tube high-strength concrete columns are formed by sequential connecting of prefabricated standard column joints, and the standard column joints comprise steel tubes, high-strength concrete, stiffening ribs and ordinary concrete, wherein the high-strength concrete is poured in the steel tubes; the stiffening ribs are arranged on the outer side of the steel tubes in a surrounding mode, and the ordinary concrete is poured at the outside of the steel tubes; the high-strength concrete is high-strength concrete with added iron tailings and construction waste; vertical rib groups are fixed to the inner walls of the steel tubes in a welded mode; horizontal end plates are arranged on the outer circumferences of the steel tubes along the section direction in a surrounding mode; through holes are evenly formed in the horizontal end plates at intervals; the stiffening ribs penetrate through the through holes and are arranged in the length directions of the steel tubes in a full-length mode; one ends of the stiffening ribs extend out of the standard column joints, and the other ends of the stiffening ribs are provided with half grouting sleeves which are connected with the stiffening ribs extending out of the adjacent standard column joints. The assembled steel tube high-strength concrete columns are fireproofing, corrosion resisting, high in bearing capacity, and excellent in durability.