76results about How to "Solve the problem of corrosion resistance" patented technology

The invention discloses a TMCP type marine austenitic stainless steel composite plate and a preparation method thereof and relates to the technical field of bimetal composite manufacture. The preparation method comprises blank preparation, surface grinding, isolating agent brush-coating, assembly blank sealing, electron beam soldering and sealing, heating, rolling and cooling, straightening, and cutting separation. The TMCP type marine austenitic stainless steel composite plate effectively solves the problem of corrosion resistance of the composite austenitic stainless steel in the composite plate, and in the blank preparation process, the steps of drilling and vacuuming are avoided. The preparation method has simple processes and a high rolling yield.

The invention relates to the technical field of application of amorphous alloy, in particular to a mobile phone shell and an amorphous alloy reinforcement block thereof and a manufacturing method of the amorphous alloy reinforcement block. The reinforcement block is the amorphous alloy reinforcement block made of zirconium-based amorphous alloy, copper-based amorphous alloy, titanium-based amorphous alloy, nickel-based amorphous alloy, palladium-based amorphous alloy or iron-based amorphous alloy. The reinforcement block is 400-600 in hardness, 1000-3000MPa in strength and 2-3% in elastic limit, and is non-corrosive on the surface after 500-2000h salt spray test. Amorphous-alloyed alloy ingot is adopted in the method to manufacture the amorphous alloy reinforcement block through a die casting molding method, a melt spinning method, a suction casting method, a rapid discharge molding method, a continuous casting method or a thermoplastic molding method. The amorphous alloy reinforcement block manufactured by the method has the advantages of high strength, high hardness, high elasticity and anti-corrosion, and the situation that a mobile phone is bent when the mobile phone shell is highly stressed can be avoided.

The method comprises: after connecting the thermistor to the wire by using soldering or welding, using a material which is identical with the wire insulation layer as the covering layer of the thermistor; heating and pressing it in order to make the covering layer combine with the isolation layer.

The invention belongs to the technical field of bolt processing, and aims at providing a high-strength fastening bolt production technology. The high-strength fastening bolt production technology comprises the following steps of: step 1. selecting a steel product; step 2. carrying out spheroidizing annealing; step 3. shelling and descaling; step 4. drawing; step 5. carrying out cold forging and shaping; step 6. carrying out thread machining; step 7. carrying out heat treatment; step 8. detecting; step 9. tempering; step 10. carrying out secondary detection; and step 11. plating an anti-corrosion layer. Bolts screened out finally through material selection, annealing, descaling, drawing, cold forging, heat treatment, screening and tempering have the characteristic of high strength. The bolts have the characteristic of corrosion resistance by coating the surfaces of the bolts with Fe-Ni-Cr alloy coatings, and can be prevented from be corroded under harsh physicochemical conditions, and thus, the shape and strength of the bolts are maintained.

The invention provides an aluminum alloy electroless nickel plating mixed metal activation method. The method comprises the following steps that surface oil removal, deoxidizing film treatment and acid cleaning are performed on an aluminum base material in sequence, then the aluminum base material is placed in activation liquid for activation, the activation treatment temperature is 20-50 DEG C, and the activation time is 1-5 min. By means of the aluminum alloy electroless nickel plating mixed metal activation method provided by the invention, a prepared nickel plating layer has the characteristics of being uniform and compact, wear resistant, corrosion resistant, good in binding force and the like, the problems existing in the prior art of the tedious process, environmental pollution, slow beginning plating time, poor plating layer adhesion force and the like are solved, the production cost can further be reduced, and the aluminum alloy electroless nickel plating mixed metal activation method is suitable for large-scale industrial production.

The invention discloses a sheet metal of a multi-layer structure. The sheet metal is characterized by comprising four layers of metal layers which are parallelly distributed, the two outermost layers are made of nickel, the sum of the thicknesses of the two outermost layers does not exceed 30% of the total thickness of the sheet metal, and the two middle layers are made of stainless steel, copper or copper alloy and low-carbon steel according to a certain proportion.

The invention relates to an anti-waxing coating for oil pipelines. The anti-waxing coating is composed of primer and finish paint, wherein the weight ratio of the primer to the finish paint is 100:(2-5); the primer comprises 10-30% of polyurethane, 5-15% of epoxy resin, 5-15% of unsaturated polyester, 1-8% of inorganic fillers, 2-10% of a flatting agent, 0.05-2% of a defoaming agent and the balance of a solvent; the finish paint is a perfluorinated polyether derivative. The invention further provides a preparation method of the anti-waxing coating for oil pipelines. The anti-waxing coating is hydrophobic, oleophobic, corrosion-resistant, low in surface energy, high in anti-waxing efficiency and high in bonding strength with a substrate, can be used for solving the problems of waxing prevention of inner walls of oil storing equipment and oil refining equipment, and can further be used for solving the problems of antifouling and algae prevention of ships, racing boats or submarines, as well as antifouling and algae prevention of buildings.

The invention discloses a polymeric crystalline silicon insulator material for direct-current power transmission as well as a preparation method and application thereof. Raw materials of the polymeric crystalline silicon insulator material comprise phenolic latex, silicone, polyethylene, polypropylene and an ultraviolet absorber. The polymeric crystalline silicon insulator material for the direct-current power transmission is used for manufacturing a direct-current power transmission insulator. An insulator made by adopting the polymeric crystalline silicon insulator material not only can meet the electrical performance and the mechanical performance requirement of a conventional insulator, but also can meet a service life requirement, can also solve the electric corrosion resistance problem and the aging problem of a chute boot material under a direct-current voltage, has anti-fouling and self-cleaning functions, is high in cost performance, is energy-saving and environment-friendly and is free from pollution; after reaching a service life period, a product can be recycled.

The invention discloses a pipe for transporting poisonous gas. The pipe comprises a pipe body, wherein the inner wall of the pipe body is coated with a corrosion-resistant layer, a plurality of wear-resistant protrusions are arranged on the inner wall of the pipe body, the top surfaces of the wear-resistant protrusions penetrate through the corrosion-resistant layer and is arranged in an inner cavity of the pipe body, a protective layer is arranged on the outer wall of the pipe body, the pipe body is a cement pipe, and the protective layer is a polymer cement-based waterproof coating layer. The pipe is high in corrosion resistance and can effectively prevent corrosive substances in the poisonous gas from corroding the pipe, so that the service life of the pipe can be remarkably prolonged.

The invention discloses a corrosion-resistant pressure stabilizing cavity structure suitable for an air layer drag reduction ship, and relates to the technical field of ship energy conservation and drag reduction. The pressure stabilizing cavity comprises multiple PE pipes and a base plate, the multiple PE pipes extend in the width direction of the ship body, and the multiple PE pipes are distributed in parallel in the length direction of the ship body at intervals and penetrate through longitudinal ribs of the ship; the PE pipe is provided with a first opening, the first opening extends in the width direction of the ship body, and the two sides, in the width direction of the first opening, of the PE pipe are connected with the ship bottom plate to form a pressure stabilizing cavity; the base plate extends in the width direction of the ship body, is made of a corrosion-resistant material and is located between the PE pipe and the ship bottom plate, and the base plate is in sealed connection with the PE pipe and the ship bottom plate; a first through hole is formed in the base plate, a second through hole communicated with the first through hole is formed in the ship bottom plate, and the pressure stabilizing cavity is communicated with the outside of the ship body through the first through hole and the second through hole. The pressure stabilizing cavity is made of a PE material, so that the corrosion-resistant effect is better; and the base plate made of the corrosion-resistant material also reduces the corrosion of the ship bottom plate.

The invention discloses an anti-oxidation counter weight device resistant to self-excited vibration for a high voltage overhead transmission line. The anti-oxidation counter weight device comprises counter weight sheets and is characterized in that the counter weight sheets are provided with counter weight sheet installation barrels relatively matched with the counter weight sheets, and each counter weight sheet installation barrel is mainly composed of a barrel body, a barrel cover and a barrel bottom. A sleeving hole A is formed in the middle of each counter weight sheet, the two sides of the counter weight sheet are respectively provided with a sleeving hole B, the cross sections of the sleeving hole A and the sleeving hole B are respectively circular, and the diameter of the sleeving hole A is larger than that of the sleeving holes B. The anti-oxidation counter weight device is simple in structure and ingenious in design. A traditional counter weight sheet is simply transformed. The additional counter weight installation barrels matched with the counter weight sheet enable the counter weight sheets to be prevented from being in contact with the outside, and the counter weight device is resistant to oxidation, corrosion and the like. Meanwhile, the counter weight device is convenient and fast to install, and supporting rods are arranged between the counter weight sheets, so that the counter weight sheets fit firmly.

The invention belongs to the field of composite metal materials, and particularly relates to a preparation method for a composite material of a lightweight structure. The preparation method comprises the steps that under the condition of vacuum heat treatment, Al-Ti-Sic alloy powder is loaded on the surface layer of a porous matrix material by adopting a thermal permeation technology, the surface of the alloy powder is coated with polyurethane resin, and then the alloy powder is dried. A high-strength alloy coating is loaded on the surface layer of the matrix material, the compactness and strength of the internal hole connection structure of the matrix material are kept, the tensile strength and the extensibility of the material are effectively enhanced, and the impact resistance is improved. An automobile fender and the related structural members made of the material are high in impact resistance and energy absorption performance, and more superior in size-mass ratio.

The invention relates to a method and a device for producing a plasma surface metallurgical metal wire, comprising the following steps of: inputting a metal wire into a plasma chamber and carrying out plasma surface metallurgical treatment on the metal wire; and then outputting the treated metal wire, wherein the whole process is carried out in a protective atmosphere. The invention also provides a production device for realizing the production method, comprising an inlet transitional chamber, an outlet transitional chamber and at least one plasma surface metallurgical chamber, wherein the metal wire can continuously move among source electrodes to carry out the plasma surface metallurgical treatment. The production method and the production device can realize the plasma surface metallurgical treatment on the metal wire, acquire the metal wire with high performance and uniform infiltration layer and effectively solve the difficult problems of rust and corrosion of carbon steel wires and high strength, modulus and elasticity of stainless steel materials.

The invention provides a sanitation vehicle. The sanitation vehicle comprises a tank body which is connected with the chassis; a pipeline system, wherein part of the pipeline system is connected with the chassis, the pipeline system comprises an operation pipeline and a circulation pipeline, the circulation pipeline comprises a liquid inlet pipeline, a liquid outlet pipeline and a driving part, the first end of the liquid inlet pipeline is communicated with the tank body, the second end of the liquid inlet pipeline is communicated with the operation pipeline, the first end of the liquid outlet pipeline is communicated with the operation pipeline, the second end of the liquid outlet pipeline is communicated with the tank body, and a driving part is positioned on the liquid inlet pipeline; wherein the driving part drives the liquid in the tank body to circulate for a preset time through the liquid inlet pipeline, the liquid outlet pipeline and the operation pipeline, and then drives the circulated liquid to be discharged through the operation pipeline for operation. By the adoption of the technical scheme, the sanitation truck is simple and reliable in structure, and the problem that in the prior art, a pipeline of a sanitation truck is not resistant to corrosion is solved.

The invention discloses a steel ladle brick cup joint filler which is prepared from raw materials: by weight parts, corundum, Al2O3 powder, fused magnesite, cement and composite additive, wherein Al2O3 powder is mixed from alpha-Al2O3 powder and rou-Al2O3 powder. The joint filler of new design and its construction solve the problem of air leakage of the steel ladle thoroughly, also solve the problem that corundum fluid has poor corrosion resistance and has poor protective effect to the periphery of the brick cup, improve production efficiency of steel mills, and reduce labor intensity.

The invention relates to an anti-rusting method of a galvanized iron tower member. The anti-rusting method is mainly used for solving the problems that, the galvanized iron tower member is not corrosion-resistant, easy to get rusty and short in service life, the structural strength is reduced, the potential safety hazard is generated, and collapse and power outage accidents of an iron tower are further caused in the prior art. The process of the method according to the invention is as follows: brush-coating a conductive glue solution with the repair function on the surface of the assembled galvanized iron tower member, further pressing the glue solution into gas holes, hair eyes, gaps and exposed scars in a galvanized layer through the high pressure method for tamping, blocking and sealing, spray-coating anti-aging, water-repellent and dirt-resistant clear lacquer on the surface of a glue film after the glue film is hardened, brush-coating a silicon rubber layer at the part which is 1m away from the member at the root part of the iron tower after the lacquer forms a film, and further preparing the product prepared by the method according to the invention. The anti-rusting method of the galvanized iron tower member is scientific, simple in process and convenient to use, and can save the material cost, the implementation can be followed after the galvanization process of a galvanization workshop, and the product has the advantages of corrosion resistance, rustless property, friction resistance, water resistance, pollution prevention, long service life of 30 years, maintenance-free updating, safety, reliability and significant economic benefits and can be widely used on land and in water.

The invention belongs to the field of building materials, and in particular relates to a double-layer epoxy resin coating reinforcing steel bar which comprises a reinforcing steel bar body. The reinforcing steel bar is characterized in that a corrosion resisting layer and a wearing layer are coated at the periphery of the reinforcing steel bar body in sequence, wherein the corrosion resisting layer adopts seawater resisting type melting combined epoxy modified powder coating layer; and the wearing layer adopts a wearing resisting type melting combined epoxy modified powder coating layer. The double-layer epoxy resin coating reinforcing steel bar is simple in structure; due to the corrosion resisting layer, and the reinforcing steel bar is prevented from being corroded, so that the service life of the reinforcing steel bar is prolonged, and the construction quality is improved; and due to the outermost wearing layer, the reinforcing steel bar is prevented from being damaged in the transportation or construction process, so that the quality of the reinforcing steel bar is ensured.