350results about How to "Improve rust resistance" patented technology

The invention provides an anti-corrosion Teflon coating as well as a preparation method and application thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: irradiating polytetrafluoroethylene micro-powder, performing graft modification on the irradiated polytetrafluoroethylene micro-powder and glycidyl methacrylate, reacting with phosphorus oxychloride and polydopamine modified graphene, adding into a Teflon primer, and uniformly stirring and mixing to obtain the anti-corrosion Teflon coating. The anti-corrosion Teflon coating prepared by the invention has good high-temperature resistance, corrosion resistance, rust resistance, mechanical properties, wear resistance, scratch resistance, medium resistance and the like, can effectively resist high-wear-resistance environments such as sliding friction, impact friction and cavitation friction and high-corrosion environments such as acid media and alkaline media, and has a wide application prospect.

The invention discloses a coating as well as a preparation method and application thereof and a coated product. According to the coating provided by the invention, the curing modification of the epoxy resin coating is realized by adjusting the components of the curing agent: a primary amine group contained in the curing agent reacts with an epoxy group to generate secondary amine and hydroxyl, and nitrogen atoms can improve the heat-resistant stability of a cross-linked network; a phenolic hydroxyl group reacts with an epoxy group to generate an ether bond and a hydroxyl group, and the ether bond can improve the overall flexibility of an epoxy resin coating; the anhydride group reacts with the epoxy group to generate various anhydride epoxy intermediates, so that the overall heat resistance of the epoxy resin is improved; the introduction of the ammonium salt can reduce the curing temperature of the epoxy resin, and the introduction of the metal ions can improve the anti-rust performance of the epoxy coating. Finally, the curing agent is used for curing the epoxy resin, so that the corrosion resistance, the adhesive property and the high-temperature resistance of the coating can be remarkably improved, and the application requirements in extremely severe environments such as high humidity and heat, acid-base corrosion and the like can be met.

The invention relates to the field of metal soft magnetic materials, in particular to a high-frequency high-permeability metal soft magnetic powder core and a preparation method thereof. The preparation method comprises the following steps: S1, screening magnetically soft alloy powder with a preset particle size; s2, preparing passivation powder; s3, preparing granulation powder; s4, a blank is prepared through compression molding; s5, the blank piece is subjected to curing treatment; and S6, the cured part is subjected to high-temperature heat treatment in vacuum, and the high-frequency and high-permeability metal soft magnetic powder core is obtained. The preparation method disclosed by the invention is simple, mild in reaction condition, low in cost and capable of realizing automatic large-scale production. The high-frequency and high-permeability metal soft magnetic powder core prepared by the invention has high frequency, high magnetic induction intensity and high unit power density, particularly, the internal stress of a metal soft magnetic material is released to the greatest extent by adopting high-temperature heat treatment, the coercive force is reduced, the density and the permeability are remarkably improved, and the high-frequency and high-permeability metal soft magnetic powder core is widely applied to DC-DC and power supply circuits with ultrahigh switching frequency and high magnetic conductivity. And a MHz-level power supply circuit.

The invention discloses a brake disc manufacturing process, and relates to the technical field of brake disc manufacturing. The brake disc manufacturing process specifically comprises the following steps that S1, a casting is purchased, and machining operation is conducted on the casting, so that an initial disc is obtained; s2, carrying out first cladding operation on the disc surface of the initial disc; according to the manufacturing process of the brake disc, while color individuation of the brake disc is guaranteed, the color of a disc body of the brake disc is guaranteed by applying a laser cladding technology, and one or more special metal or nonmetal wear-resistant layers are formed on the surface of the brake disc, so that the wear resistance and the rust resistance of the brake disc are improved, the attractiveness is improved, and the attractiveness and individuation of the brake disc are improved; the automobile brake disc is subjected to surface treatment through laser coating, the metal coating is formed, coloring agent materials such as metal or metal compounds or ceramic are added while laser coating is conducted, color changing of multiple colors can be conducted on the brake disc, and the effect that the brake disc is not discolored after long-term operation can be kept.

The invention discloses a steel structure roof waterproof coating and a preparation method thereof, and belongs to the technical field of waterproof coating preparation, the steel structure roof waterproof coating comprises the following components by weight: 10-40 parts of an epoxy resin monomer or a prepolymer thereof; 10-40 parts of an acrylate monomer or a prepolymer thereof; 5 to 15 parts of an epoxy acrylate monomer; 1-8 parts of ethylene glycol glycidyl ether; 1 to 8 parts of hydroxyl acrylate; 2 to 12 parts of sodium hydrogen sulfite terminated diisocyanate; 2 to 10 parts of an amino functionalized metal organic framework UiO-66-NH2; 1 to 8 parts of benzotriazole; 0.1 to 0.5 part of an initiator; 5-30 parts of a filler; 0-3 parts of an auxiliary agent; 50 parts of deionized water; the waterproof coating with the epoxy resin, the polyacrylate and the polyurethane polymer chain as an interpenetrating network is prepared through the composite components, and the coating has the good affinity adhesion performance of the epoxy resin to metal, the weather resistance and aging resistance of the polyacrylate and the toughness of the polyurethane.

The utility model discloses a marble slab dry hanging anti-falling structure which comprises a plurality of marble slabs and a pre-assembling device, and the pre-assembling device is composed of a keel structure and two opposite pre-buried steel belts, the keel structure is formed by interweaving a plurality of vertical keels and a plurality of transverse keels, the radial section of the keel structure is in a net shape, every two adjacent transverse keels are in clearance fit, the transverse keels and the adjacent vertical keels are combined to form a grid area, and stainless steel connecting pieces are connected between each vertical keel and the transverse keels. The two ends of the vertical keels are connected with the embedded steel belts correspondingly, and the transverse keels are provided with anti-falling pieces used for being connected with the marble slabs and preventing the marble slabs from falling off and damping pieces used for being installed between the marble slabs and the transverse keels. The problem that in the prior art, a transverse keel, a vertical keel, a marble fastener and a connecting part are rusted and fractured, so that a marble slab of a marble dry-hanging outer ring falls off is solved.

The invention provides an ash-free antirust agent and a preparation method thereof. The preparation method comprises the following steps: in a non-polar solvent, mixing dinonyl naphthalene sulfonic acid and dodecenylsuccinic acid to obtain a mixed acid A; the preparation method comprises the following steps: mixing polyethylene polyamine and mixed acid A according to a molar ratio of (0.5-2.0): 1, and adding deionized water and methanol to react until the pH value of the solution is neutral; and adding methyl methacrylate and base oil into the reacted system, heating and distilling, and then carrying out reduced pressure distillation until no obvious distillate is generated, thereby obtaining the ash-free antirust agent. The invention also provides the ash-free antirust agent prepared by the method. The ashless antirust agent integrates the advantages of the dinonyl naphthalene sulfonic acid group and the dodecenyl succinic acid group on the molecular level, the antirust property is better, and the ashless antirust agent and the anti-wear reagent at extreme pressure have a very good synergistic effect.

The invention belongs to the technical field of coatings, and discloses a single-component waterborne epoxy dip-coating coating for a finned radiator. A YBEP-405E single-component waterborne epoxy emulsion is used as a main film-forming substance, and a carbon nanotube modified fullerene ceramic heat-conducting material, an anticorrosive pigment, a pigment filler, a self-made defoaming and foam-inhibiting agent, an auxiliary agent and the like are added to prepare the single-component waterborne epoxy dip-coating paint for the finned radiator. The carbon nano tube modified fullerene ceramic heat conduction material is matched with the anti-corrosion pigment, so that the heat conductivity and the salt fog resistance of the coating are improved, and the self-made defoaming foam inhibitor eliminates the problem that the coating continuously generates bubbles in construction engineering. The single-component waterborne epoxy dip-coating paint for the finned radiator solves the technical problems of thermal conductivity, corrosion resistance and no bubble in construction of the single-component waterborne epoxy dip-coating paint for the finned radiator in the prior art.

The invention discloses a preparation method of a passivator for a high-rust-prevention aluminum alloy, and belongs to the technical field of rust-prevention materials.The passivator comprises a self-repairing nanocapsule, an environment-friendly corrosion inhibitor, a functional silane coupling agent, inorganic anti-corrosion pigment and an assistant.The self-repairing nanocapsule can form a passivation film with a self-repairing function on the surface of the aluminum alloy, and the passivation film can be applied to the surface of the aluminum alloy; the environment-friendly corrosion inhibitor provides anti-rust performance and biocompatibility, the functional silane coupling agent enhances the adhesive force and weather resistance of a passivation film, the inorganic anti-corrosion pigment serves as a main component of the passivation film to provide excellent anti-corrosion performance, and the passivation agent is applied to the surface of an aluminum alloy in a dipping, spraying, brushing or electrochemical deposition mode. According to the passivating agent, the self-repairing nanocapsule is added to form a layer of passivating film with a self-repairing function and excellent anti-rust performance, the anti-rust performance and durability of the aluminum alloy are remarkably improved through the passivating agent, and the performance is gradually enhanced along with increase of the content of the self-repairing nanocapsule.

The invention discloses cold-rolled strip steel anti-rust oil containing TiO2 nanoparticles and a preparation method of the cold-rolled strip steel anti-rust oil. The cold-rolled strip steel anti-rust oil comprises the following components: TiO2 nanoparticles, a composite surface modifier, composite base oil, a composite anti-rust agent, a composite extreme pressure anti-wear agent, a composite oiliness agent, a composite antioxidant and a composite defoaming agent. According to the method, the nanotechnology and the anti-rust technology are combined, the anti-rust oil with excellent anti-rust performance is developed, the adhesion of an oil film is enhanced through nanoscale TiO2 particles, the anti-rust performance of the anti-rust oil is effectively improved, and the storage life and the service life of cold-rolled strip steel are prolonged.

The utility model discloses a portable lithium battery chain saw which comprises a cutting assembly, the cutting assembly comprises a shell, a mounting groove is formed in one side of the shell, a brushless motor is arranged on the inner wall of the shell, one end of the brushless motor is connected with a connecting shaft, one end of the connecting shaft rotatably penetrates through the shell, and a driving gear is detachably arranged at one end of the connecting shaft. The driving gear is located in the mounting groove, two sets of fixing frames are fixedly arranged on the inner wall of one side of the mounting groove through welding, a guide plate is detachably mounted through the fixing frames, open holes matched with the fixing frames are formed in one end of the guide plate, a saw blade is rotatably arranged on the outer wall of the guide plate, and one end of the saw blade is connected with the driving gear. A control handle is connected to one side of the shell, a start button is arranged on one side of the control handle, a grip is fixedly arranged on the outer wall of one side of the shell through bolts, a cover plate is fixedly arranged on the outer wall of one side of the shell through bolts, the cover plate is matched with the mounting groove, and a spraying assembly used for dedusting and cooling is connected to one side of the shell.

The present invention discloses a rainwater sewage interception hanging basket device for an urban sewage interception pipe network system, comprising a cylinder, a top plate, a first limiting ring, an adjusting slide groove, an installation through hole, a sewage interception component, a guide component, a second limiting ring, a support seat, a carrying handle, a sealing cover and a protective component, wherein the top end face of the cylinder is provided with a top plate, the top of the inner wall of the cylinder is fixedly installed with a first limiting ring, the center of the end face of the first limiting ring is provided with a installation through hole, and the end face of the first limiting ring is located on the outside of the installation through hole and is provided with an adjusting slide groove; the bottom of the inner wall of the cylinder is fixedly installed with a second limiting ring, the center of the inner bottom of the cylinder is provided with a support seat, and the top of the support seat is provided with a sewage interception component; the rainwater sewage interception hanging basket device for an urban sewage interception pipe network system is small in size and easy to carry; when in use, the sewage interception angle can be adjusted, and at the same time, debris can be easily cleaned, thereby improving the convenience of use.

The invention discloses cold-rolled sheet strip steel anti-rust oil with a self-repairing function and a preparation method of the anti-rust oil. The anti-rust oil comprises the following components in parts by mass: 40-50 parts of compound base oil, 20-30 parts of a compound anti-rust agent, 1-3 parts of a compound surface modifier, 10-20 parts of a compound self-repairing agent, 1-5 parts of a compound antioxidant, 1-3 parts of a compound anti-foaming agent, 1-4 parts of a compound dispersing agent and 5-15 parts of a compound environment-friendly solvent, the anti-rust oil not only has good environmental protection performance and excellent anti-rust effect, but also can automatically repair a damaged protective film in the use process, so that the anti-rust period is prolonged, and the maintenance cost is reduced; meanwhile, the preparation method is simple and easy to implement, low in cost and suitable for industrial production.

The invention provides a steam turbine oil complexing agent, steam turbine oil as well as a preparation method and application of the steam turbine oil. The steam turbine oil complexing agent is prepared from the following components in parts by mass: 60-80 parts of an antioxidant, 5-15 parts of a metal deactivator, 5-10 parts of an antirust agent, 0.5-5 parts of a demulsifier and 5-30 parts of a cosolvent, wherein the total mass part of the complexing agent is 100 parts. The steam turbine oil contains the steam turbine oil complexing agent which can well balance the acid value, rust resistance, emulsification resistance and oxidation resistance of an oil product, an L-TSA steam turbine oil (grade A) product meeting GB 11120-2011 Turbine Oil can be obtained by adding the complexing agent into proper base oil and supplementing with a proper amount of anti-foaming agent, and the steam turbine oil has the advantages of being long in oxidation life, low in cost and the like. The antirust performance, the anti-emulsification performance and the like are excellent.

The invention belongs to the technical field of water-based primer, and particularly relates to non-zinc-rich water-based primer, a preparation method and application. The primer comprises a main agent and a curing agent, and the main agent comprises a component A1 and a component A2; the curing agent comprises a component B; the component A1 comprises the following raw materials: water, a dispersing agent, a filler, an antirust agent, a defoaming agent, a filler wetting agent and water-based organic bentonite; the component A2 comprises the following raw materials: a water-based epoxy emulsion, a defoaming agent, a base material wetting agent, a water-based thickening agent, a cosolvent and an anti-flash-rust agent; and the component B comprises the following raw materials: a water-based curing agent, water and a regulator. The preparation method comprises the steps of burdening, grinding, blending and mixing. The primer can be applied to composite materials. Compared with the prior art, the primer provided by the invention has better weather resistance, stability and anti-rust property.

The invention provides a wear-resistant antirust Teflon coating and a preparation method thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: irradiating polytetrafluoroethylene micro powder, performing graft modification on the irradiated polytetrafluoroethylene micro powder and glycidyl methacrylate, reacting the modified polytetrafluoroethylene micro powder with silicon oxide coated modified Zn / Fe deposited porous alumina nanospheres modified by a silane coupling agent and hydrolyzed, adding the reaction product into a Teflon primer, and uniformly stirring and mixing to obtain the wear-resistant antirust Teflon coating. The coating prepared by the invention is compact in coating after being cured into a film, has good lubricating conditions and mechanical action resistance, excellent wear resistance, scratch resistance, medium resistance, high-temperature resistance and the like, can effectively resist high-wear-resistance environments such as sliding friction, impact friction and cavitation friction, can make up for the wear defect caused by friction of two contact surfaces, and also has the advantages of high wear resistance, high wear resistance and the like. And two opposite moving surfaces have good lubricating and antifriction effects, so that the problems of friction and abrasion are solved, and a substrate is protected for a long time.

The utility model relates to the technical field of return springs, and discloses a double-clutch return spring set which comprises an inner gear hub, a return spring mechanism is arranged on the surface of one side of the inner gear hub in a clamped mode, the return spring mechanism comprises a fixing ring, return spring bodies are fixedly connected to the periphery of the interior of the fixing ring, and the inner side of the inner gear hub is provided with a return spring. A protective coating is fixedly connected to the periphery of the outer surface of the return spring body and comprises a phosphating coating, an electrophoretic paint coating is fixedly connected to the surface of the upper end of the phosphating coating, a galvanized coating is fixedly connected to the surface of the upper end of the electrophoretic paint coating, and a spring supporting plate is clamped to the surface of the upper end of the fixing ring. According to the return spring, the protective coating is fixedly connected to the periphery of the surface of the return spring set, and the protective coating is composed of the phosphating coating, the electrophoretic paint coating and the galvanized coating, so that the abrasion resistance and the overall hardness of the spring are improved, and the return spring is not prone to breakage in the using process.

The utility model discloses shot blasting and paint spraying equipment for a paint bucket, which belongs to the field of shot blasting and paint spraying equipment and comprises a bottom plate, a shot blasting table fixedly mounted on the upper portion of the bottom plate, a shot blasting machine fixedly connected above the shot blasting table, the paint bucket movably mounted in the shot blasting table, a shot blasting groove formed in the shot blasting table, and a first connecting frame movably mounted in the shot blasting groove. Supporting rods are fixedly connected to the two ends of the first connecting frame, the paint bucket is fixedly connected to the supporting rods, and the paint bucket is overturned by the first connecting frame, so that the surface of the paint bucket makes more comprehensive contact with shot sand, the rust removal effect is better, after rust removal is completed, paint is introduced through a feeding pipe, the overturned paint bucket continues to be subjected to paint spraying treatment, and the paint spraying efficiency is improved. The paint bucket is prevented from being oxidized and rusted again, the anti-rust effect is better, shot sand is subjected to water washing treatment through the material guiding frame, impurities such as paint attached to the shot sand can be conveniently removed, the shot sand is lifted, recycled and dried through the lifting barrel, and the shot sand is conveniently recycled and reused.

The utility model relates to a vehicle-mounted ceiling screen support assembly formed by punching a galvanized steel sheet, which comprises a fixed support, an overturning component, a supporting component and a spring bolt component, the fixed support is made of the galvanized steel sheet formed by punching, a reinforcing structure is formed on the surface of the fixed support, and a screw hole is formed on the surface of the fixed support; the overturning assembly and the supporting assembly are symmetrically arranged on the two opposite sides of the screen. A side opening clamping structure is arranged on a shell of the overturning assembly and a shell of the supporting assembly, a vibration isolation sleeve is embedded in the clamping structure, a center through hole is formed in the vibration isolation sleeve, the vibration isolation sleeve is fixed to the screw hole through a step screw, and the outer diameter of the step face of the step screw is in interference fit with the inner diameter of the center through hole of the vibration isolation sleeve. According to the vehicle-mounted ceiling screen support assembly formed by stamping the galvanized steel sheet, the galvanized steel sheet formed by stamping is adopted as a core structure, all the components are optimally designed, and the effects that cost is reduced, structural strength is improved, vibration isolation and assembly are simplified, and installation adaptability is enhanced are achieved.

The invention relates to the technical field of hydraulic transmission oil, in particular to a low-pour-point hydraulic transmission oil composition and a preparation method thereof. The hydraulic transmission oil composition comprises the following components in parts by weight: 80-99 parts of base oil, 0.1-8 parts of a composite additive 5012T and 0.1-10 parts of a viscosity index improver, the base oil is at least one of I type base oil, II type base oil and III type base oil; and the viscosity mark of the base oil is No.6, No.8 or No.10. The hydrodynamic transmission oil composition disclosed by the invention is simple in production process and high in preparation efficiency, can reach a lower pour point without adding a pour point depressant, can be suitable for hydrodynamic transmission equipment such as a hydraulic coupler and a hydraulic torque converter, and can be applied to a harsh low-temperature environment.

The present invention relates to the technical field of rust prevention treatment of threaded steel, and discloses a rust prevention treatment device and rust prevention method for threaded steel production and processing, including a frame for providing a bearing platform for components in the device; two hoods, respectively fixed at the two ends of the frame; a plurality of openings one, respectively opened on the two hoods; a plurality of openings two, respectively opened at the two ends of the frame; a box body one, fixed on the frame, in which a degreasing agent is accumulated; a box body two, fixed on the frame, in which a rust inhibitor is accumulated. The present invention is completed in the process of a single reciprocating movement of the threaded steel through the coordinated action of a driving part, a spraying part and a liquid supply part. Such a design eliminates the process of performing a separate degreasing treatment and simplifies the production process.

The utility model relates to the technical field of metal protection, and discloses a high-temperature-resistant anti-rust coating of a heating component on an injection molding machine, which comprises a workpiece and an anti-rust structure arranged on the surface of the workpiece, and the anti-rust structure comprises a high-temperature-resistant anti-rust coating coated on the surface of the workpiece. The heating component on the injection molding machine is rust-proof by spraying the high-temperature-resistant rust-proof coating on the surface, so that the problem of rusting of a workpiece due to long-time marine transportation is solved, and the economic benefit is improved.

The utility model relates to the technical field of open wrenches, in particular to a rust-proof wrench which comprises a handle, a push block is slidably connected in the handle, a wrench body is fixedly connected to one end of the push block, a wrench head is arranged at one end of the wrench body, and a protective cover is slidably connected to one end of the handle. A high-density sponge is arranged in the protective cover, an oil cavity is formed in one end of the protective cover, a plurality of oil outlet holes are formed in the side, close to the high-density sponge, of the oil cavity in a penetrating mode, a push plate is slidably connected into the oil cavity, and a screw rod is fixedly connected to one end of the push plate. According to the utility model, the wrench head with the retractable handle is designed, so that the contact with the outside is reduced, and the rusting risk is reduced. Meanwhile, due to the design of the oil drainage cavity in the cover, the wrench head can be conveniently and uniformly oiled, the anti-rust operation is simplified, the use amount of oil and uniform smearing are ensured, and the anti-rust effect is improved.

The invention discloses an efficient and stable nano SiO2-Al2O3 compound water-based antirust agent and a preparation method thereof, and the compound water-based antirust agent comprises the following components in parts by mass: 10 to 20 parts of nano silicon dioxide, 5 to 10 parts of nano aluminum oxide, 3.0 to 8.0 parts of a compound dispersing aid, 1.0 to 3.0 parts of a compound auxiliary antirust agent, 1.0 to 3.0 parts of a compound surfactant, 1.0 to 4.0 parts of a compound pH regulator and 1.0 to 3.0 parts of a compound defoaming agent, 1.0 to 3.0 parts of a compound bactericide and 55 to 75 parts of deionized water. The antirust agent not only has excellent antirust and stable performance, but also has the advantages of being environment-friendly, non-toxic, easy to prepare and the like.

This invention discloses a water-soluble punching and shearing oil, comprising the following components in 100 parts by weight: 20.0-35.0 parts rust inhibitor; 10.0-20.0 parts lubricant; 3.0-10.0 parts surfactant; 0.5-3.5 parts bactericide and mildew inhibitor; 0.5-2.0 parts other additives; and the balance being deionized water. This punching and shearing oil can be used in various sheet metal deep drawing and punching processes. It can be diluted for use, effectively reducing users' oil costs. Simultaneously, it avoids oil mist and VOC problems caused by using oily products in the workshop, thus purifying the workshop operating environment. Parts punched and sheared using this invention have smooth surfaces, complete cuts, good gloss, and are burr-free. Processed parts are easy to clean or require no cleaning, significantly saving on overall costs such as materials, water resources, and labor.

The invention discloses a total-synthesis metal working fluid composite lubricant as well as a preparation method and application thereof. In the composite lubricant, a main lubricant is PIBSA polyether ester, a dispersing agent is oleyl alcohol polyoxyethylene ether 10-maleate, and a soaping agent is oleic acid; the main lubricant and the dispersing agent are respectively prepared, and are compounded with the soaping agent according to the hard water concentration. The preparation method is simple and feasible, and is suitable for large-scale production; the prepared total-synthesis metal working fluid composite lubricant has a low-foam lubrication effect, has good heat storage stability and anti-rust performance in practical application, and has great industrial application prospects.

A rust-preventive film comprising at least recycled polyethylene, a vaporizable rust inhibitor, and an antioxidant, wherein the vaporizable rust inhibitor is selected from carboxylic acid esters and heterocyclic aromatic compounds, and the antioxidant is a phenolic antioxidant.

The invention belongs to the technical field of cutting fluid, and particularly discloses water-based cutting fluid and a preparation method thereof. The water-based cutting fluid comprises the following components in parts by weight: 1-5 parts of a water-soluble nano-copper lubricant prepared from anhydrous cupric sulfate, hydrogen peroxide, an antioxidant, diluted hydrochloric acid and the like, 2-8 parts of an antirust agent, 0.2-0.5 part of a copper corrosion inhibitor, 5-15 parts of organic alcohol amine, 5-10 parts of polyethylene glycol, 0.5-4 parts of phosphate, 1-3 parts of an antiseptic bactericide and 0.1-1 part of a settling agent. The components are sequentially mixed to obtain the water-based cutting fluid. The water-based cutting fluid disclosed by the invention has excellent lubricity and anti-rust property, is green and environment-friendly, is simple and easy to prepare and is suitable for industrial popularization.

The invention discloses low-yield-ratio Q355B structural steel and a production process thereof, and relates to the technical field of steel production, and the low-yield-ratio Q355B structural steel comprises the following chemical components in percentage by mass: 0.10%-0.20% of C, 0.10%-0.35% of Si, 0.60%-1.60% of Mn, less than or equal to 0.030% of P, less than or equal to 0.025% of S, 0.005%-0.020% of Nb, 0.010%-0.030% of Ti, 0.020%-0.050% of Al and the balance of Fe and inevitable impurities.

The invention belongs to the field of metal rust prevention, and particularly discloses an anti-rust coating for the surface of a steel structure and a preparation technology of the anti-rust coating. The anti-rust coating is prepared from the following raw materials in parts by weight: 30 to 50 parts of vinyl glycol ether, 10 to 20 parts of sorbitan monooleate, 5 to 15 parts of sodium octyl sulfate, 5 to 10 parts of nano zirconium oxide, 5 to 10 parts of basalt fiber powder, 3 to 6 parts of nano titanium dioxide, 15 to 20 parts of a thickening agent and 3 to 8 parts of a lubricating agent. The preparation method of the antirust coating material is simple, the antirust coating material is tightly combined with the surface of a steel structure after being sprayed, later baking treatment is not needed, construction is convenient, the construction cost is low, and the coating surface is smooth, good in hydrophobic performance, good in wear resistance and aging resistance and good in antirust effect.