244results about How to "Strong anti-corrosion ability" patented technology

The invention relates to a novel highly-abrasion-resistant, anti-corrosion and anti-static coating and a preparation method thereof. The coating comprises basic thermosetting resin and a filler, wherein the basic thermosetting resin is modified resin for coatings; the filler is formed through blending and combining one or more of a carbon nano tube, carbon black, graphite, graphene, nano aluminum powder and conductive mica powder with one or more of quartz sand, glass flake, nano silicon dioxide, nano-molybdenum disulfide, aluminium oxide and modified montmorillonite. The coating is directly smeared or sprayed on the surface of a metal outer shell of electronic and electrical equipment, the equipment can be effectively prevented from being corroded by the environment for a long time, and the influence of pad points and electromagnetic interference on the safe, normal and stable use of the equipment is prevented.

The invention relates to an extra-large fiber reinforced plastic (FRP) combined storage tank structure with a floating roof, and a construction method of the storage tank structure. The extra-large FRP combined storage tank structure comprises a tank top, a tank wall and a tank bottom, wherein the tank top has an FRP latticed shell structure; FRP plates are laid on the FRP latticed shell structure; the tank wall is composed of an inner layer FRP plate, an outer layer FRP plate and active powder concrete between the inner layer FRP plate and the outer layer FRP plate; the floating roof is arranged in the tank cover; a connection piece is arranged between the inner layer FRP plate and the outer layer FRP plate; concrete trapezoid grooves are sequentially formed between the inner layer FRP plate and the outer layer FRP plate along a circumferential direction; prestress bars are pulled between every two adjacent concrete trapezoid grooves section by section; and the inner layer FRP plate and the outer layer FRP plate are formed by connecting FRP spliced plates through tenon tongues and tenon grooves. The extra-large FRP combined storage tank structure is high in corrosion resistance and freezing resistance, insensitive to temperature change, low in heat transmission speed, favorable for keeping temperature in a tank body, high in compression strength, high in corrosion resistance and relatively high anti-permeability.

The invention discloses an epoxy modified saturated polyester resin for an undercoat of a coil coating and the undercoat of the coil coating. The epoxy modified saturated polyester resin comprises the following components in parts by weight: 50-80 parts of methylpropanediol, 100-140 parts of epoxy resin 609, 110-150 parts of isophthalic acid, 110-150 parts of hexanedioic acid, 105-145 parts of neopentyl glycol, 0.1-0.6 part of organic tin, 20-40 parts of dimethylbenzene, 380-500 parts of S-150# solvent oil and 30-60 parts of propylene glycol monomethyl ether. The prepared epoxy modified saturated polyester resin is applied to the undercoat of the coil coating, so that the undercoat of the coil coating is high in adhesion and corrosion resistant performance to metals, high in machinability, high in deformation property under high surface hardness and weather ability and low in cost, and the comprehensive performance is obviously improved.

A method for preparing the composite steel-plastics pipe with two polymer layers includes such steps as providing steel plate or steel band with holes, longitudinal curving or spiral rolling, welding to become a cylindrical metal skeleton, using an extruder to extrude out the fused polymer and make it to pass through the holes for wrapping the metal skeleton to form pipe wall, using another extruder to extrude out the fused polymer but make it not to pass through holes to form a polymer layer on formed pipe wall, and cooling. Its apparatus is also disclosed.

The composite steel/plastic pipe producing process includes longitudinally bending or spirally winding steel plate with holes and welding to form metal pipe skeleton, separating the welded metal pipe skeleton from atmosphere with inert air, extruding the core layer plastic pipe inside the metal pipe skeleton, extruding the outer layer plastic pipe outside the metal pipe skeleton and making the inner layer and the outer layer of plastic pipe combined into one integral via the holes in the metal skeleton. The present invention also provides one composite steel/plastic pipe producing line. The produced composite steel/plastic pipe has high bearing capacity and firm combination of the inner and outer plastic layers.

The invention relates to a preparation method of a cast aluminum alloy film coat, which is characterized by cleaning a cast aluminum alloy component firstly, performing chromate oxidation treatment secondly, and then preparing a film sealing coat of fluorine containing acrylicester on a chromate oxide film. Construction methods such as brushing or spraying is used for the invention, the methods are flexible and simple and has high maneuverability; the invention can be applied in the protective treatment for cast aluminum alloy of ZL102, ZL104, ZL107, ZL112, ZL114 and the like, and is particularly suitable for treatment of the cast aluminum alloy component used in the ocean environment; and the invention is also suitable for the protective treatment of other aluminum alloy materials or components, such as treatment of duralumin, super duralumin, wrought aluminum and rust-proof aluminum alloy.

The invention discloses a composite reinforced roadbed and a construction method. The composite reinforced roadbed comprises water-permeable concrete piles, waste tires, connection pieces and gravels, wherein the water-permeable concrete piles are sequentially poured to peaks of triangles according to the shapes of equilateral triangles; each longitudinally cut waste tire is fixed on a steel bar of each water-permeable concrete pile; the water-permeable concrete piles are connected through the connection pieces in sequence and are buried on the roadbed; the equilateral triangles and the tires are filled with the gravels; the structure is filled with the soil roadbed. According to the composite reinforced roadbed, the waste tires are arranged at the bottom of the roadbed and replace part of the soil body; compared with the friction force in the soil body, the friction force between the soil body and the waste tires or the friction force caused by indirect contact between the gravels and the tires is obviously increased; in spite of cohesive soil or non-cohesive soil, the cohesive force of the soil body or the inner friction angle of the soil body can be increased; the stability of a slope of the roadbed is improved.

The continuous production equipment of steel plastic composition pipe with perforated steel skeleton whose inside and outside surfaces are coated with adhesive includes forming sizing welding mechanism, extrusion combination mechanism and sizing cooling forming mechanism which are arranged in turn, and it is characterized by that before extrusion combination mechanism an adhesive extrusion coating mechanism capable of melt-extruding coating adhesive onto inside surface and outside surface of the cylindrical steel skeleton by means of its bores is added, and said adhesive extrusion coating mechanism has the components of mould cover, hollow core mould, hollow core shaft, forming mould cavity and adhesive flow channel, etc.

The invention discloses a method for constructing a superhydrophobic aluminum surface with high stability. The method comprises the steps of ultrasonically cleaning an aluminum sheet by sequentially using acetone and ethanol under the condition of room temperature, then, flushing with deionized water, next, carrying out alkali corrosion on the aluminum sheet in a sodium hydroxide solution, flushing with deionized water, and finally, carrying out acid corrosion on the aluminum sheet in a nitric acid solution; electrolyzing in a phosphoric acid solution by taking the pretreated aluminum sheet as an anode and a lead plate as a cathode, and keeping the electrolyte at constant temperature to generate an aluminum oxide film on the surface of the electrolyte; immersing the treated aluminum sheet into an ammonia water solution to corrode the aluminum sheet by using ammonia water; and immersing the treated aluminum sheet into an n-hexane mixed solution composed of stearic acid and dicyclohexylcarbodiimide, soaking for 10-30 hours, taking out the product, and flushing the product with n-hexane to obtain a superhydrophobic aluminum sheet. After superhydrophobic metal aluminum obtained by using the method disclosed by the invention is placed for 4 months, the contact angle of the superhydrophobic metal aluminum is not changed, and the rolling angle of the superhydrophobic metal aluminum is smaller than 5 degrees; in addition, the superhydrophobic metal aluminum not only has favorable superhydrophobicity and self-cleaning function, but also has very strong corrosion resistance.

The invention belongs to the technical field of research of soil analytical methods, in particular relates to an experimental technical method of quickly obtaining nuclide migrating parameters in clay by utilizing a flexible-wall permeameter. The experimental method comprises the following steps: I. pressing a clay material into a plurality of cylindrical samples with determined dry densities, and respectively putting into a pressure chamber of the flexible-wall permeameter for saturation; after finishing the saturation, uniformly adding tracer nuclides into the bottoms of the samples, and setting different pressure values to carry out an experiment, meanwhile, regularly collecting percolate at outlets, and calculating the percolation rates; II. stopping the experiment when the tracer nuclides occur in the percolate of the samples under the highest pressure, and taking the samples out and cutting into thin sheets of 1mm along the axial directions, performing dissipation, and measuring the concentration of the nuclides so as to obtain a nuclide concentration distribution curve of a plurality of groups of nuclides along the axial directions of soil columns; III. performing experimental calculation. The experimental method can be applied to the field of measurement of the nuclide migrating parameters.

The invention relates to an environment-friend extrusion corn foaming section bar and relative production, wherein the inner layer is foaming layer, the outer layer is extrusion rigid layer; said foaming layer contains: polyvinyl chloride resin at 63-67%; calcium carbonate at 11-15%; chlorinated polyvinyl chloride at 3-7%; and chemical agent at 12-19%; the extrusion rigid layer contains: polyvinyl chloride resin at 42-46%; calcium carbonate at 42-46%; chlorinated polyvinyl chloride at 3.5-5%; and chemical agent at 7-9%. The invention can avoid deformation and color fade, with high rigidity and lower cost, while its smoothness can reach 95%.

The invention discloses an anticorrosive ultraviolet curing coating with high hardness. The raw materials for preparing the coating comprise the following ingredients in parts by weight: 70-80 parts of urethane acrylate, 5-13 parts of organosilicone acrylate, 5-20 parts of an activated diluent, 1-6 parts of a photoinitiator, 5-20 parts of modified nanosilica, 2-5 parts of nano-titanium dioxide, 2-5 parts of a cosolvent, 2-6 parts of a corrosion inhibitor, 6-8 parts of an auxiliary, and 30-50 parts of water. The anticorrosive ultraviolet curing coating with high hardness, disclosed by the invention, is high in wear resistance, good in stability, and high in anticorrosive property.

An apparatus for continuously manufacturing the composite steel-plastics pipe whose perforated steel skeleton is coated by adhesive is composed of a shaping-sizing welder unit, adhesive coating unit,steel skeleton heater, extruding out unit with hollow core die and cooling-sizing sleeve, and sizing-cooling unit.

The invention relates to microcapsule self-repair organic/inorganic polysiloxane paint. The microcapsule self-repair organic/inorganic polysiloxane paint comprises organic-inorganic polysiloxane resin, reparative microcapsules, pigment, a filler, an antifoaming agent, a dispersing agent, a flatting agent, aminosilane and a solvent. The microcapsule self-repair organic/inorganic polysiloxane paint disclosed by the invention has the advantages that the microcapsule self-repair organic/inorganic polysiloxane paint not only can be used for protecting aluminum alloy materials but also can be used for protecting magnesium alloys, and steel, besides, the microcapsule self-repair organic/inorganic polysiloxane paint can repair defect positions when defects including scratches and scuffing appear, and the polysiloxane paint having a function of repairing corrosion can repair coating having anticorrosion property deterioration and metal under the coating in the use process of the coating.

The invention discloses a processing method of a female and male thick copper circuit board. The processing method comprises the following steps that a thick copper foil, a thin copper foil and an inner layer plate are provided; the thick copper foil is subjected to single-side etching, so that a non-circuit-pattern region of the thick copper foil is etched to reduce the thickness; the thick copper foil and the thin copper foil are pressed on the two sides of the inner layer plate, so that the etched side of the thick copper foil faces the inner layer plate, and the female and male thick copper circuit board is obtained; the female and male thick copper circuit board is subjected to double-side etching, so that the non-circuit-pattern regions of the thick copper foil and the thin copper foil are removed through being etched, and circuit patterns are formed. Through the technical scheme, the processing method solves the problems that in the existing single-side etching process, a dry film covers the circuit patterns, the bonding force is low, and the anti-corrosion capability is poor. The processing method also solves the problems that in the existing circuit compensation process, the compensation design needs to be added to one side of the thin copper coil, so that the problems that the circuit space is large, and fine and tight circuits cannot be processed are caused.

A composite stone-plastic material used to prepare composite plate with high strength and anticorrosion nature and no pollution of formaldehyde and radioactive material is proportionally prepared from stone powder chosen from light calcium carbonate stone powder and heavy one, PVC resin, and the powder of plant chosen from wheat straw, cotton stalk and wood.

The invention belongs to the technical field of corrosion-resistant coatings, and particularly relates to waterborne nano long-acting corrosion-resistant finishing coat and a preparation method thereof. The finishing coat consists of a component A and a component B. The component A consists of the following raw materials in parts by weight: 30-40 parts of acrylic acid modified polyurethane emulsion, 10-20 parts of modified nano silicon dioxide sol, 0.5-1 part of a defoaming agent, 0.3-0.8 part of a leveling agent, 5-10 parts of a cosolvent, 0.5-1 part of a thickening agent, 1-3 parts of a wetting agent and the balance of deionized water. The component B is a waterborne curing agent. The waterborne nano long-acting corrosion-resistant finishing coat has the advantages of long-lasting and excellent corrosion resistance, high substrate adhesion, high hardness, excellent friction resistance, excellent salt fog resistance, high construction adaptability and the like. The preparation method is simple, the cost is low, operation is facilitated, the waterborne nano long-acting corrosion-resistant finishing coat is environmentally friendly and pollution-free, a coated film is dry quickly, and the construction period is short.

Provided is an anti-corrosion magnesium alloy communication device, which uses a magnesium alloy casting as a housing, the surfaces of the housing are provided with a surface pre-treatment layer and at least an anti-corrosive layer; the surface pre-treatment layer is a chemical conversion film or a magnesium-containing oxide film with a porous structure; and the anti-corrosive layer is a coating layer. Also provided is an anti-corrosion magnesium alloy communication device, the housing comprises an upper housing and a lower housing abutting to each other, the gap of the abutting is provided with a sealing joint strip, the sealing joint strip is arranged on the gap and fills the gap. Provided is an anti-corrosion magnesium alloy communication device, the housing is provided with a magnesium alloy body, and a dissimilar metal connecting with the magnesium alloy body, the surfaces of the magnesium alloy body and the dissimilar metal as well as the connection of the two are provided with a sealing layer or a sealing joint strip or a coating layer, the sealing layer or the sealing joint strip or the coating layer is used to isolate the magnesium alloy body from the outside, the dissimilar metal is provided with a exposed conductive part, the conductive part is used to form a grounding connection with the outside. Also provided is a method for preparing an anti-corrosion magnesium alloy communication device.

The invention relates to a lead-acid storage battery heat preservation device which comprises a battery installation bracket. The battery installation bracket comprises four side face brackets and a bottom bracket, the middles of the four side face brackets and the middle of the bottom bracket are respectively provided with a hollow portion, the hollow portions of the four side face brackets of the battery installation bracket are respectively provided with a fixing plate in a covering mode, a storage battery is fixedly arranged in the battery installation bracket, an electric heating film is arranged between the periphery of the storage battery and the inner surfaces of the side face brackets, and the electric heating film is powered by the storage battery. According to the lead-acid storage battery heat preservation device with the structure, under the extremely-cold situation, the low-temperature electric heating film is manually or automatically controlled to conduct heating, and the film has the function of heating and preserving heat of the battery. The device has the stronger anti-corrosion and anti-collision buffer functions, battery fluid is prevented from leaking to corrode equipment sheet metal, according to the use environment, under the high-temperature or the cold situation, the fixing plates on the periphery of the battery installation bracket are disassembled, a low-temperature electric heating film system is disconnected, and therefore the two functions of ventilation cooling and low-temperature heating are achieved.

The invention provides water pump pliers. The water pump pliers comprise a first fixed pliers arm, a second fixed pliers arm, a first movable pliers arm, a second movable pliers arm, a first clamping part, a second clamping part, a limiting rod and a connecting rod, wherein the first fixed pliers arm and the second fixed pliers arm are fixedly connected to from a fixed pliers arm assembly, the first movable pliers arm and the second movable pliers arm are hinged to the space between the first fixed pliers arm and the second fixed pliers arm through a sliding piece, through grooves are formed in the middle of the first fixed pliers arm and in the middle of the second fixed pliers arm respectively, the two ends of the sliding piece are movably installed in the two through grooves respectively, the limiting rod is arranged between the first fixed pliers arm and the second fixed pliers arm, a sliding groove is formed in the limiting rod, one end of the connecting rod is installed on the first fixed pliers arm, and the other end of the connecting rod is installed on the movable pliers arms. According to the water pump pliers, both the first clamping part and the second clamping part are made of rare earth permanent magnetic materials, are magnetic and can attract each other, in this way, a part is clamped by a pliers head, the clamping force is increased, operation is convenient, and working efficiency is improved; the water pump pliers are simple in structure, detachable and high in safety performance.

The invention discloses a method for preparing a composite nickel coating on the surface of a magnesium alloy micro-arc oxidation film, and belongs to the technical field of metal surface treatment. The method comprises the following steps: putting a magnesium alloy matrix in a silicate series electrolyte to prepare a micro-arc oxidation ceramic layer, carrying out surface hole sealing and pre-nickeling treatment of the matrix ceramic layer by adopting a nickel salt-containing self-assembled nano-penetrant and an alcoholic solution of sodium borohydride, and carrying out composite chemical nickeling treatment to form the composite nickel coating on the surface of the film. The method is an improvement on tradition chemical nickeling technologies, and adopts a palladium salt-free activation process at room temperature, so the composite chemical nickeling operation is simplified, and the pollution of the process to the environment is reduced. The prepared composite coating has the advantages of good protection thickness, good bonding force with the substrate, good corrosion resistance, high hardness, good surface brightness, shininess, effective solving of the protection requirements on the high wear resistance and the corrosion resistance of a magnesium alloy, and provision of a powerful guarantee for the further application of the magnesium alloy.

The invention relates to a method for producing composite tube that formed by welded metal tube and polymer, wherein it comprises a, longitudinally or screw coiling the metal band into cylinder metal tube, whose joint is connected; b, welding the joints; c, using extruding head to extrude the polymer when the welding seam is cooled, to be coated on the inner wall of metal tube form fusion corn layer; and using the compressed air of extruder to blow the non-cooled corn layer to make it contact the inner wall of metal tube; d, coating adhesive or plating adhesive powder on the outer wall of metal tube, and extruding polymer outer layer above the adhesive, cooling and shaping to obtain the composite tube. The invention also provides a relative device.