4109 results about "Corrosion prevention" patented technology

The invention discloses a scratch repair coating and a preparation method thereof, and relates to the technical field of high polymer materials. When the scratch repair coating is prepared, hydroxylated boron nitride reacts with 1-(3-triethoxysilylpropyl)-2-imidazoline to prepare pre-modified boron nitride, and then the pre-modified boron nitride and 4-chloro-1-butene are subjected to quaternization to prepare modified boron nitride; the preparation method comprises the following steps: reacting styryl phosphonic dichloride with 4, 4, 5, 5, 6, 6, 7, 7, 7-nonafluoro-1, 2-heptanediol to prepare a hydroxyl-terminated phosphorus-fluorine-containing polymer; the preparation method comprises the following steps: reacting isophorone diisocyanate with a hydroxyl-terminated phosphorus and fluorine-containing polymer to prepare a polyurethane prepolymer; reacting the polyurethane prepolymer with hydroxyl-terminated coumarin to generate modified polyurethane; and uniformly mixing the modified polyurethane, the modified boron nitride and a photoinitiator to prepare the scratch repair coating. The scratch repairing coating prepared by the invention has good self-repairing performance, flame retardant property, corrosion resistance and mechanical property.

The invention discloses a buried pipeline multi-source stray current interference coupling test system and test method. The system comprises a test pipeline module, a stray current simulation module, a cathode protection module, a multi-dimensional monitoring module, an intelligent protection module and a data analysis module. A comprehensive system integrating multi-source interference, a full-size pipeline, intelligent protection and real-time monitoring integrates static direct current interference, dynamic direct current interference and alternating current interference into the same system, and the problem that multi-source stray current superposition cannot be truly simulated in the prior art is solved. The comprehensive test of static direct current, dynamic direct current, alternating current stray current and anticorrosive coating defect coupling interference can be simulated, online monitoring of pipe-to-ground potential, current distribution and corrosion rate is realized, the timeliness and accuracy of test data are improved, cooperative work and data linkage analysis of multiple modules are realized, and the test efficiency is improved. A powerful basis is provided for optimizing a protection strategy, and the corrosion protection effect of the buried pipeline is improved.

The invention relates to the technical field of heavy anti-corrosion coatings, in particular to a graphene enhanced epoxy modified organic silicon resin heavy anti-corrosion powder coating. The coating is prepared from the following components in parts by weight: 42 to 58 parts of epoxidized epoxy modified organic silicon resin, 0.8 to 2.5 parts of hydroxylated graphene, 6 to 11 parts of nano zirconium dioxide coated boron nitride, 2.5 to 5.5 parts of lanthanum iso-octoate-titanate composite coupling agent, 1.5 to 3.5 parts of bis (3-triethoxysilylpropyl) disulfide, 4 to 7 parts of polyhedral oligomeric silsesquioxane, 5 to 8 parts of curing agent, 0.8 to 1.8 parts of flatting agent and 0.4 to 0.9 part of defoaming agent. 2.5 to 4.5 parts of polyether-ether-ketone micro powder and 1.2 to 2.8 parts of fluorine-containing phosphate ester. According to the invention, the resin is modified through chemical bridging, the modified graphene and the nano-coated powder are matched to construct a synergistic enhancement system, and the interface bonding is optimized by the composite coupling agent. The coating is excellent in adhesive force, corrosion resistance and mechanical property, good in processing fluidity and high in aging resistance and thermal stability, solves the problem that a traditional product is short in performance, and meets the industrial requirement.

The invention discloses a waste gas washing spray tower with an anti-corrosion structure, and relates to the technical field of waste gas treatment.The waste gas washing spray tower comprises a tower body, a liquid storage tank formed in the tower body, a gas inlet pipe installed on the side wall of one side of the tower body and a gas outlet pipe installed at the top of the tower body; spraying assemblies are mounted in the tower body above the two filler purification assemblies, a demister is mounted on the inner wall of the tower body below the gas outlet pipe, and an anti-corrosion lining is laid on the inner wall of the tower body. By arranging the filler purification assembly, the effect that blocked filler can be automatically discharged from the rectangular grid during cleaning is achieved, manual scraping is not needed, the labor burden of workers is reduced, and the speed of taking the filler out of the spray tower is increased; and by arranging the traction mechanism, the effect that the traction rope pulls and drives the two filler purification assemblies to synchronously turn over is achieved, and simultaneous discharging of filler in the two filler purification assemblies is facilitated.

The invention provides a preparation method of an h-BN / PI high-temperature-resistant anticorrosive coating, and relates to the technical field of polymer composites.The preparation method of the h-BN / PI high-temperature-resistant anticorrosive coating comprises the steps that under the protection of inert atmosphere, aromatic diamine containing impurity element five-membered rings and aromatic dianhydride containing ether bonds are taken and subjected to a polymerization reaction in a polar aprotic solvent, and the h-BN / PI high-temperature-resistant anticorrosive coating is obtained. A polyamide acid solution is obtained; performing ultrasonic-assisted liquid phase stripping on the micron-sized hexagonal boron nitride to obtain single-layer hexagonal boron nitride; adding the single-layer hexagonal boron nitride into the polyamide acid solution for multiple times, and uniformly stirring to obtain a hexagonal boron nitride / polyimide composite solution; and coating the hexagonal boron nitride / polyimide composite liquid on a to-be-coated surface, and carrying out gradient heating curing to obtain the h-BN / PI high-temperature-resistant anticorrosive coating. The h-BN / PI high-temperature-resistant anticorrosive coating based on interaction of multiple hydrogen bonds has relatively good high temperature resistance, relatively good resistance mechanical property and excellent corrosion resistance.

The invention provides low-carbon premixed concrete based on industrial solid waste synergistic activation and a preparation method of the low-carbon premixed concrete. The low-carbon premixed concrete is prepared from the following components: a nano silicon-based anti-corrosion early strength agent, a cementing material, recycled aggregate, electric furnace tailings, waste carbon fibers, a polycarboxylate superplasticizer and water, the preparation method comprises the following steps: S1, preparing a nano silicon-based anti-corrosion early strength agent through silane hydrolysis and modification reaction of nano silicon dioxide; s2, preparing a cementing material: mixing fly ash, steel slag, mineral slag and Portland cement, calcining, grinding, spraying a composite alkali activator, and aging; s3, mixing and forming: wet-mixing the cementing material, the recycled aggregate, the iron tailing sand, the waste fibrilia, the nano silicon-based anti-corrosion early strength agent, the polycarboxylate superplasticizer and water, and pre-injecting and forming; and S4, carbonization curing. According to the invention, efficient utilization of industrial solid waste is realized, and the low-carbon environmental protection performance and mechanical property of the concrete are improved.

The invention relates to the technical field of cables, and discloses an anti-torsional fatigue and corrosion-resistant wind power cable and a manufacturing process thereof, the anti-torsional fatigue and corrosion-resistant wind power cable comprises a three-phase cable core main body, a dynamic compensation anti-torsion layer, a multifunctional corrosion-resistant barrier layer and an outer sheath, the three-phase cable core main body comprises a stranded conductor, a filling inner layer and an insulating layer; the dynamic compensation anti-torsion layer comprises an incongruous spiral supporting layer and a shape memory alloy compensation layer, and the incongruous spiral supporting layer comprises aramid fiber bundles and a nickel-cobalt alloy wire woven mesh; the multifunctional anti-corrosion barrier layer is arranged on the outer side of the dynamic compensation anti-torsion layer and sequentially comprises an anti-corrosion barrier bottom layer, an anti-corrosion barrier middle layer and an anti-corrosion barrier bottom layer surface layer from inside to outside. Through the gradient composite structure design, the problem of failure of a traditional wind power cable under long-term dynamic load and severe environment is effectively solved, and the torsional fatigue resistance, the corrosion resistance and the environmental adaptability are remarkably improved.

The invention provides a preparation method of a self-repairing waterborne polyurethane coating based on a synergistic effect of a dynamic disulfide bond and a pH response microcapsule. The preparation method comprises the following steps: step 1, preparing a dynamic disulfide bond-containing waterborne polyurethane (D-WPU) emulsion; step 2, preparing a pH response microcapsule; step 3, preparing a self-repairing waterborne polyurethane coating; a dynamic disulfide bond of the self-repairing waterborne polyurethane coating rapidly repairs macrocracks at 50-60 DEG C through mercaptan catalysis, and pH < lt > is caused by local corrosion of a pH response microcapsule; when the pH value is 4.0, cysteine is released, sulfydryl accelerates recombination of dynamic bonds, and amino enhances cohesive force of the coating and neutralizes H < + >. And in combination with a hydrogen bond network of the nanocellulose, the coating has low-temperature repair (the mechanical strength recovery rate is greater than or equal to 90%), high toughness (the water absorption rate is less than or equal to 2.1%) and long-acting corrosion resistance (the salt spray resistance life is greater than or equal to 600 hours), and is suitable for severe environments such as ocean engineering and new energy equipment.

The invention discloses a novel high-temperature-resistant and corrosion-resistant aluminum alloy plastic-lined PP-RCT composite pipe, and relates to the technical field of composite pipelines. The composite pipe is of a five-layer gradient composite structure, wherein the outer layer is an anodized aluminum alloy base body, and the inner surface is provided with laser micro-texture anchoring points; the secondary layer is a chromium-free Dacromet anti-corrosion layer, and the interface bonding force is improved through a three-dimensional network structure; the third layer is a gradient curing bonding layer which is cured by stages to eliminate thermal stress; the fourth layer is a dynamic stress compensation layer for absorbing the thermal expansion difference between the metal layer and the plastic layer; and the inner layer is a PP-RCT functional layer which has high temperature resistance and corrosion resistance. The end of the composite pipe is sealed through laser welding, an embedded intelligent monitoring system is integrated, and axial stress and temperature are monitored in real time. Compared with the prior art, the invention is suitable for pipeline systems under extreme working conditions of petrochemical engineering, ocean engineering, high-temperature fluid transportation and the like.

The invention discloses a mildewproof and anticorrosive waterborne epoxy floor paint and a preparation method thereof, and belongs to the technical field of waterborne paints.The mildewproof and anticorrosive waterborne epoxy floor paint is prepared from, by mass, 45.5%-52.0% of modified waterborne epoxy emulsion, 0.5%-1.5% of a curing agent, 0.5%-1.5% of a curing agent and the balance water. 18.5%-20.0% of a water-based epoxy curing agent; 7.5%-8.5% of a mildew-proof microcapsule; 3.5% to 5.0% of silica powder; 2.5%-3.0% of nano zinc oxide; 0.3%-0.5% of a dispersing agent; 0.1%-0.3% of a defoaming agent; and the balance of deionized water. Aiming at the three technical problems of poor mildew preventive compatibility, insufficient long-term effect and reduced coating mechanical property of the existing water-based epoxy floor paint, the invention provides the water-based epoxy floor paint with long-term mildew and corrosion resistance, high mechanical property and environmental friendliness through material design and process improvement.

The invention provides a corrosion-resistant composite cable and a preparation method thereof, the corrosion-resistant composite cable comprises a signal unit, an optical cable unit and a protection unit, the signal unit and the optical cable unit are coated with the protection unit, the signal unit comprises a silver-plated copper conductor, an insulating layer, a shielding layer and a sheath layer, and the silver-plated copper conductor is coated with the insulating layer. The optical cable unit comprises an optical fiber, a buffer tube and a filler; the protection unit comprises an inner sheath, a tensile layer, an anti-corrosion layer and an outer sheath. The corrosion-resistant composite cable has good corrosion resistance, can effectively resist corrosion of various chemical substances, prolongs the service life of the cable, reduces the fault risk caused by corrosion, and improves the stability and reliability of power transmission or signal transmission; under severe environment conditions, such as high humidity, high salinity and high alkalinity, a normal working state can still be kept, continuous and stable support is provided for related equipment or systems, and normal operation of the equipment or systems is guaranteed.

The invention discloses a polyetherketoneketone high-temperature-resistant wear-resistant non-stick coating and a preparation method thereof. The coating is prepared from the following components in parts by mass: 13 to 30 parts of a resin matrix group (containing 12 to 25 parts of titanium modified polyether ketone ketone resin, 1 to 5 parts of fluorine-free viscous resin and 0.65 to 6 parts of aluminum oxide), 0.5 to 3 parts of a nano reinforced group (containing 0.5 to 3 parts of KH-550 modified nano titanium dioxide, 0.025 to 0.6 part of cerium dioxide and 0.5 to 3 parts of boron nitride) and 62 to 71 parts of an auxiliary agent group. The preparation method comprises the following steps: 1) taking diphenyl ether, paraphthaloyl chloride and isophthaloyl chloride as monomers, and synthesizing titanium modified polyether ketone ketone resins with different viscosities through segmented polymerization (1.5-2.0 hours or 3.0-4.0 hours); 2) respectively preparing a smooth bottom layer water dispersion slurry and a wrinkled surface layer water dispersion slurry; and (3) forming a compact bottom layer and a micro-wrinkle surface layer on the base material by adopting a layered spraying and stepped sintering process (280-320 DEG C, 10-20 minutes). The whole system of the coating is fluorine-free and has temperature resistance gt; the coating has the characteristics of high temperature resistance (350DEG C), wear resistance (Taber wear rate of 3-5mg / 1000r), non-sticking (contact angle gt, 100 DEG C) and heavy corrosion resistance, and is suitable for cooking utensils and chemical equipment.

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

The invention discloses a new energy cable for power transmission, and relates to the technical field of cables, the new energy cable for power transmission comprises an anti-corrosion sleeve, a neck bush is installed in the anti-corrosion sleeve, a conductor is arranged in the neck bush, a sealing and butt joint mechanism is arranged on the outer side of the anti-corrosion sleeve, and the sealing and butt joint mechanism comprises a reinforcing ring sleeve. The device is scientific and reasonable in structure and safe and convenient to use, a sealing and butt joint mechanism is arranged, a positioning buckle is driven to move to the outer side of the reinforcing ring sleeve through traction of a traction baffle ring, and through cooperation of a positioning shaft seat, an anti-deviation supporting rod and an opening and closing sliding block, the anti-deviation supporting rod is fixed to the outer side of the anti-deviation supporting rod, and the anti-deviation supporting rod is fixed to the outer side of the anti-deviation supporting rod. The two positioning buckles are attached together in a sliding mode to form an annular buckle, the annular buckle is connected into the reinforcing ring sleeve in a sleeved mode, the splicing inserting rod is embedded into the positioning groove, and then the sealing buckle is pulled to move through cooperation of the limiting rotating cylinder, the telescopic sleeve rod and the positioning shaft base.

The invention discloses a cement kiln tail flue gas waste heat recovery system based on cascade heat exchange and intelligent regulation and control and a cascade heat exchange method thereof, the cement kiln tail flue gas waste heat recovery system comprises a cascade heat exchange module and an intelligent regulation and control module which are matched for use, and a flue gas guide plate is arranged at a flue gas inlet of the cascade heat exchange module; under control and regulation of the intelligent regulation and control module, high, medium and low cascade heat exchange of cement kiln tail flue gas waste heat is achieved, the dynamic response time of control and regulation can be shorter than 30 s, the response speed is increased by 60% or above compared with a traditional control system with a fixed proportion, the scaling and anti-corrosion detection function is achieved, and the control system is suitable for large-scale popularization and application. And the operation stability of the system is guaranteed, the service life of the system is prolonged, and the system is not only suitable for heat energy recovery in the cement production process, but also capable of achieving efficient heat energy recovery in other high-dust and high-corrosion flue gas environments.

The invention belongs to the field of corrosion and protection, and discloses a preparation method of an intelligent coating with multistage self-repairing capability. According to the method, a core-shell structure nano container with a metal organic framework (MOF) compound as a core and layered double hydroxide (LDH) as a shell is prepared, different functional objects are respectively loaded in the core and the shell by adopting a step-by-step in-situ loading method, and graded release of the functional objects is realized by utilizing pH responsiveness of the MOF and corrosive ion responsiveness of the LDH; the nano container is added into an organic coating as a filler to construct an intelligent coating with multi-stage self-repairing capability. The problems of passive protection and uncontrollable corrosion inhibitor release of a traditional anti-corrosion coating are solved, the coating can repair corrosion defects in time according to needs, the long-acting corrosion resistance is remarkably improved, the preparation process is simple, the condition is mild, and the coating is suitable for metal protection of high-end equipment and other complex service environments.

A barrel cooling system for a weapon includes a corrosion prevention cylinder between a barrel and cooling fins arranged around the cylinder.

The invention discloses an inspection equipment motion control method and system for a dynamic disturbance environment, and relates to the technical field of anticorrosion detection, main cable swing and inspection equipment attitude data are collected to establish a dynamic corresponding relation, and according to the relation, the gravity center is regulated in a segmented manner, and the attachment direction is adjusted in real time to form inertia compensation; dynamic rhythm control is implemented in combination with an inertia compensation result to establish a time dislocation relationship; the sensing detection rhythm is synchronously regulated and controlled, and acquisition windows are unified; and dynamically rearranging a sampling sequence according to a detection time sequence, and fusing an attitude balance state and a time dislocation result to form a closed detection path. According to the invention, by dynamically sensing the swinging of the main cable and carrying out gravity center regulation and inertia compensation, the attitude stability and the advancing reliability of the inspection equipment under strong gust are improved; meanwhile, the detection rhythm and path planning are unified, a continuous closed detection path is formed, and the space-time consistency and long-term stability of anti-corrosion detection data are guaranteed.

The invention discloses a temperature-resistant, flame-retardant and anti-corrosion composite material for a building as well as a preparation method and application of the composite material, and belongs to the technical field of polycarbonate building materials. The composite material is prepared from the following components in parts by weight: 60 to 80 parts of polycarbonate, 8 to 10 parts of a dispersing agent, 10 to 20 parts of epoxidized silicone rubber, 1 to 5 parts of benzotriazole, 1 to 5 parts of a flame retardant, 3 to 5 parts of a compatible aid, 0.3 to 0.5 part of an antioxidant, 0.2 to 0.5 part of a light stabilizer, 0.15 to 0.3 part of an anti-dripping agent and 0.2 to 0.4 part of a catalyst. According to the composite material, polycarbonate is used as a base material, the flame retardance and the corrosion resistance of the composite material can be remarkably improved by adding the epoxidized silicone rubber and the benzotriazole, the temperature resistance of the material is not obviously reduced, and the service life of the material is prolonged.

The invention relates to the field of coating materials, and discloses a passivation solution for a hot-dip galvanized workpiece as well as a preparation method and a use method.The passivation solution is prepared from organic pottery clay, titanium dioxide, ethylene-vinyl acetate copolymer emulsion, waterborne epoxy silicon resin, a silane coupling agent, a coloring agent, filler, an auxiliary and water. The problem of light pollution in areas with high illumination intensity can be effectively solved, workpieces and vegetation in natural scenic areas are organically fused to form beautiful scenery lines, and the technical problems of high cost and weak corrosion resistance of green coatings caused by the fact that green towers are achieved by coating green paint at present can be effectively solved. And the pole tower is green, attractive and good in economic benefit.

The invention provides a conjugated frame encapsulated graphene functionalized polymer anti-corrosion anti-impact double-effect heat-conducting coating and a preparation method thereof, the method comprises the following steps: step S1, mixing graphene with a bromine source to prepare brominated graphene; step S2, adding a halogen monomer, a conjugated alkyne monomer, a catalyst and the brominated graphene obtained in the step S1 into a mixed solution, and inducing a conjugated frame to perform in-situ packaging on the surface of the graphene in an inert gas atmosphere to prepare conjugated frame packaged graphene; s3, performing high-temperature carbonization treatment on the conjugated frame packaged graphene obtained in the step S2, and permeating a corrosion-resistant matrix to prepare a conjugated frame packaged graphene functional polymer; and step S4, loading a heat conduction material and a thickening agent on the graphene functionalized polymer obtained in the step S3 to prepare the graphene functionalized polymer coating. The coating prepared by the invention has the characteristics of continuous conjugate frame, hierarchical pore structure and corrosion resistance and impact resistance, and is suitable for the field of protection of efficient heat exchange equipment.

The invention relates to a method for preventing a water hammer from being cut off during high-speed operation of a pipeline, which comprises the following steps of: 1, calculating pipeline pressure under various water levels and different flows according to the length of the pipeline, the inner diameter of the pipeline and the category of internal corrosion prevention, and preliminarily determining the opening degree corresponding to the flow required by operation of a flow regulating and pressure regulating valve; secondly, at least three cut-off methods including quick closing, slow closing and two-stage closing are proposed based on the initial opening degree of the flow and pressure regulating valve, the water hammer effects of all the cut-off methods are compared through simulation analysis, and the optimal cut-off scheme is selected; 3, verifying the optimal cut-off scheme in actual water supply operation of the water delivery pipeline; and fourthly, an automatic control system is additionally arranged at the position of the flow and pressure regulating valve, parameters are set through the system according to verified data, and automatic regulation and control over the opening degree of the valve and flow control are achieved. Unattended operation is achieved, sudden change of pressure borne by the pipeline can be effectively avoided, and operation stability is guaranteed.

The invention belongs to the technical field of protective coatings, and particularly relates to a modified polysilazane-based protective coating, a preparation method thereof, a protective coating and application thereof. The modified polysilazane-based protective coating provided by the invention is prepared from the following preparation raw materials in parts by mass: 5.0 to 15.0 parts of polysilazane, 1.0 to 5.0 parts of a low-surface-energy compound, 1.0 to 5.0 parts of a hydrophilic compound, 1.0 to 5.0 parts of a silane coupling agent, 0.01 to 0.1 part of an initiator and 60.0 to 80.0 parts of a dispersion medium, both the low-surface-energy compound and the hydrophilic compound contain groups for free radical polymerization reaction. A protective coating formed by the protective paint provided by the invention has good environmental adaptability, and can simultaneously realize multiple effects of friction resistance, corrosion resistance, adhesion resistance, biological fouling resistance and the like when used under harsh working conditions (air / underwater environment).

The invention belongs to the field of magnesium alloy surface treatment, and particularly relates to a magnesium alloy surface damp-heat-resistant, corrosion-resistant and mildew-proof multifunctional coating and preparation and application thereof. The damp-heat-resistant, corrosion-resistant and mildew-proof multifunctional coating on the surface of the magnesium alloy comprises an inner layer and an outer layer, wherein the inner layer is a micro-arc oxidation layer containing Ta, Sn and Sb elements, and the outer layer is an epoxy resin organic coating containing modified conductive mica powder. The multifunctional coating is used for improving the damp-heat resistance, corrosion resistance and mildew resistance of the surface of the magnesium alloy in the harsh marine atmospheric environment. The method is simple in technological process, convenient to operate, capable of forming a damp-heat-resistant, corrosion-resistant and mould-corrosion-resistant coating on the surface of the magnesium alloy, environmentally friendly, remarkable in application value and capable of meeting the actual requirements for novel multifunctional magnesium alloy materials in the fields of aerospace, ocean engineering and the like.

The invention relates to a marine epoxy resin composite material. The marine epoxy resin composite material is characterized by comprising the following components in parts by mass: 100 parts of epoxy resin, 20-30 parts of a curing agent, 100-120 parts of a reinforcing material, 2050 parts of hollow microsphere filler and 5-15 parts of a flame retardant, the epoxy resin is one or a mixture of two of bisphenol A type epoxy resin, bisphenol F type epoxy resin, polyphenol type glycidyl ether epoxy resin or aliphatic glycidyl ether epoxy resin. When in use, the marine epoxy resin composite material disclosed by the invention has the advantages of excellent comprehensive performance, corrosion resistance, flame retardance, water resistance, high strength, light weight and the like, still has excellent performance retention rate after being soaked in water for several days, and is more suitable for complex and severe working conditions on a ship.

The invention relates to the technical field of wood-plastic floors, in particular to an anti-corrosion and anti-insect straw wood-plastic floor and a preparation process thereof.The anti-corrosion and anti-insect straw wood-plastic floor comprises a floor body, and the floor body further comprises an upper-layer plate, a middle-layer plate and a lower-layer plate which are sequentially and fixedly connected from top to bottom; the medicine box is mounted at the end part of the connected floor main body; the medicine loading assembly is mounted in the medicine box; the water flow channel is formed between the middle-layer plate and the lower-layer plate, and the end of the water flow channel communicates with a water inlet pipe penetrating through the upper-layer plate to form a water inlet; the medicine flow path is arranged between the upper-layer plate and the middle-layer plate; the water flow driving assembly is mounted in the pesticide box and used for driving water flow to pass through the pesticide loading assembly; according to the device, through the arrangement of the water flow driving assembly and the pesticide flow path, insect prevention protection on the floor is achieved, pesticide can remain in the pesticide flow path, the onset time of the pesticide can be prolonged, and therefore the insect prevention time efficiency of the floor is enhanced.

The invention provides a high-performance concrete anticorrosive paint and a preparation method of a coating, and relates to the technical field of building materials and corrosion prevention. The coating is composed of a component A and a component B, the component A comprises epoxy resin, a composite solvent, an organic solvent, a dispersant, fumed silica and a leveling agent, and the component B comprises an epoxy hardener, a conductive polymer dispersion liquid and an organic solvent. The composite solvent is formed by compounding one or more of orthotitanate, phosphate and orthosilicate with an ester, ketone, alcohol, aromatic hydrocarbon, aliphatic hydrocarbon or ether organic solvent. The preparation method of the anticorrosive coating comprises the following steps: preparing the component A and the component B, mixing to form a coating, applying the coating to the surface of concrete, and curing. The coating is compact in structure and strong in adhesive force, can obviously improve the durability and corrosion resistance of concrete in extreme environments such as high salinity and high acid, and is particularly suitable for infrastructure protection in coastal and heavy corrosion industrial areas.

A shank adapter forming part of a drilling assembly includes a longitudinal axis, an external surface, an internal surface, a threaded part provided at a forward end and a plurality of splines provided at a rearward end. A machine part extends axially between the threaded part and the splines, wherein at least a part of the external surface is coated with a first corrosion protection layer of nickel and at least part of the first corrosion protection layer is coated with a polymer based sealant top layer.

The invention belongs to the technical field of mixing, and particularly relates to a mixing device and method for flue corrosion protection agent production, the mixing device comprises a mixing barrel and an inner barrel fixedly arranged in the mixing barrel, a cover plate is fixedly arranged on the mixing barrel, a rotating barrel is rotationally arranged on the inner barrel in a sleeving mode, and tooth protrusions are arranged on the rotating barrel; magnetic strips with alternating polarities are fixedly arranged in the rotating barrel in an array manner; wherein a spline sleeve shaft of the telescopic rotating mechanism is combined with a reciprocating groove of a sleeve and a convex rod of an embedded assembly, so that the telescopic mixing paddle can be driven to do composite motion of rotating and lifting, and meanwhile, a movable plate of the telescopic mixing paddle does horizontal reciprocating sliding under the action of attraction force and repulsive force of a magnetic strip and a magnetic block and an elastic telescopic rod, so that three-dimensional composite stirring is formed; the rubber scraping plate moves along with the moving plate, raw materials attached to the inner wall of the inner barrel can be intermittently scraped off, caking of the raw materials is avoided, and when the mounting base synchronously moves along with the moving plate, the inclined sawteeth on the mounting base can effectively cut powder balls in the raw materials.

The utility model discloses a weighing type sulfuric acid anti-corrosion filling machine which comprises a first filling area and a second filling area which are arranged in parallel, and each of the first filling area and the second filling area is composed of a rack and a conveying mechanism penetrating through the rack. A sulfuric acid conveying assembly parallel to the conveying mechanism is installed on the portion, behind the conveying mechanism, of the supporting plate face of the machine frame, a height lifting mechanism is arranged on the portion, between the conveying mechanism and the sulfuric acid conveying assembly, of the supporting plate face, a PFA lining structure is arranged on the inner wall of a pipeline of the sulfuric acid conveying assembly, and the adjacent pipelines are in sealed connection through flanges. The surface of the stainless steel pipe is lined with a PFA material, conveying and filling of high-corrosion liquid such as sulfuric acid are achieved through the fluorine lining valve and the corrosion-resistant hose, the whole machine achieves high-precision filling metering through the two sets of filling stations, and gas generated by the solution is collected and treated through the cover structure and the acid mist collecting device. And high-speed precise filling operation of high-corrosivity materials such as sulfuric acid is achieved.