CN113337147B - Anti-corrosion material and method for coating steel structure by adopting same - Google Patents

Anti-corrosion material and method for coating steel structure by adopting same Download PDF

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Publication number
CN113337147B
CN113337147B CN202110637128.9A CN202110637128A CN113337147B CN 113337147 B CN113337147 B CN 113337147B CN 202110637128 A CN202110637128 A CN 202110637128A CN 113337147 B CN113337147 B CN 113337147B
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coating
steel structure
installing
layer material
pipe
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CN113337147A (en
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胡萍
黄樟华
李国苗
李林峰
史昺哲
黄坤
许乐
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Zhejiang Baosheng Railway New Materials Technology Co ltd
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Zhejiang Baosheng Railway New Materials Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/10—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an adhesive surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
    • C09D151/003—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B05D2202/10—Metallic substrate based on Fe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2502/00—Acrylic polymers
    • B05D2502/005—Acrylic polymers modified
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2518/00—Other type of polymers
    • B05D2518/10—Silicon-containing polymers

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  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses an anticorrosive material and a method for coating a steel structure by adopting the anticorrosive material. The method comprises the following steps: the method comprises the following steps of base placement, lifting platform installation, horizontal telescopic mechanism and lifting mechanism installation, bottom layer and surface layer material coating mechanism installation, hydraulic pipeline installation and steel structure surface coating construction. The two-layer coating system has the functional gradient performance and good anti-corrosion effect, the coating method can realize continuous coating of the bottom layer and the surface layer of the surface of the steel structure, is favorable for ensuring the coating quality, avoids the influence on the overall anti-corrosion effect of the steel structure due to coating omission or uneven coating, greatly reduces the labor intensity of manual operation and saves coating materials.

Description

Anti-corrosion material and method for coating steel structure by adopting same
Technical Field
The invention relates to an anti-corrosion material and a method for coating a steel structure by using the same.
Background
The rail web and the fastener work in a severe environment and are easily damaged and destroyed due to the corrosion of various corrosion factors. And once the rail network is corroded, the damage is diffused fast, and the rail network is subjected to irreversible damage. It has been found that the standard of use of rail network materials is 10 years, but the service life is reduced by half due to corrosion. Particularly, with the rapid development of high-speed railways in China, more and more steel rails are laid, the daily average corrosion amount is remarkable, and the corrosion problem of the steel rails is increasingly serious.
The existing anticorrosive grease has low binding force with a steel rail matrix, is easy to fall off, has short service life and needs frequent maintenance; and after the grease is exposed to the sun and rain outdoors, the grease is easy to secrete base oil and adhere dust, sewage and the like, so that the environmental pollution is caused.
The existing railway anticorrosive coatings are matched anticorrosive coatings, and need to be sprayed for multiple times to achieve different effects; when the finish paint is coated, the paint can be sprayed only after the primer is dried, and the shortest interval between the paints is 6 hours and the longest interval is two weeks. In addition, when the paint is prepared by using the primer or the finish paint, the proportion and the measurement must be accurate. The process has the advantages of various and complicated steps, overlong time consumption, accurate consumption, and consumption of a large amount of time, manpower, material resources and financial resources.
The railway is in severe environments such as burning sun, acid rain, humidity and the like for a long time, the skylight period of the railway is only 1.5-2 hours once, and the construction time is short, so that the selected steel rail anticorrosive material not only needs to have the performances of ultraviolet resistance, hydrophobicity, strong toughness and high adhesion, but also needs to have the characteristics of simple coating process and multiple effects of one-time spraying.
Disclosure of Invention
The invention aims to provide a technical scheme of an anti-corrosion material and a method for coating a steel structure by adopting the anti-corrosion material aiming at the defects in the prior art, a two-layer coating system has functional gradient performance, a bottom layer material improves the adhesive force with the steel structure and the anti-corrosion performance, has better adhesion and plays a role in adhering the steel structure and a surface layer; the surface layer material has self-cleaning performance and anti-aging performance. The coating method can realize continuous coating of the bottom layer and the surface layer of the surface of the steel structure, is favorable for ensuring the coating quality, avoids the influence on the overall anticorrosion effect of the steel structure due to coating omission or uneven coating, greatly reduces the labor intensity of manual operation and saves coating materials.
In order to solve the technical problems, the invention adopts the following technical scheme:
an anticorrosive material characterized in that: the primer layer is modified silicon rubber containing base materials, plasticizers, fillers, cross-linking agents, antirust agents, catalysts and tackifying resin, and the surface layer is fluorine-silicon modified acrylic resin containing acrylic resin, initiators, silicon monomers, fluorine monomers and solvents. After the bottom layer material is coated on the steel structure, part of components gradually migrate to the surface of the steel structure and permeate into micropores or cracks (small molecular weight and large surface energy), so that the adhesive force and the corrosion resistance of the steel structure are improved, the adhesion is good, and the effect of adhering the steel structure and the surface layer is achieved; the surface material has low surface energy, can form a compact film, and has self-cleaning performance and anti-aging performance. The materials of the bottom layer and the surface layer are mutually compatible, and the performance is gradually changed to form the functionally graded material.
Preferably, the base material on the bottom layer is alpha, omega-dihydroxy polydimethylsiloxane, the plasticizer is silicone oil, can reduce the hardness and modulus of liquid rubber, improve the elongation and improve the viscosity of the liquid rubber, the filler is fumed silica, the cross-linking agent is one or a mixture of methyl tributyrinoxime silane and vinyl tributyrinoxime silane, linear polysiloxane can be cross-linked into an elastomer with a net structure, the antirust agent is barium petroleum sulfonate, the catalyst is dibutyl tin dilaurate, the tackifying resin is EVA, and the addition of the tackifying resin to liquid rubber can ensure that the initial viscosity and the wet viscosity of bottom rubber are good, the curing speed is high, the storage stability is high, the surface tension is small, the adhesive has good adhesion to a surface layer, and the adhesive has high reactivity.
Preferably, the acrylic resin on the surface layer comprises a soft monomer and a hard monomer, the initiator is benzoyl peroxide, the silicon monomer is vinyl trimethoxy silane, the fluorine monomer is hexafluorobutyl methacrylate, and the solvent is n-butyl alcohol.
Preferably, the soft monomer comprises butyl acrylate, and the hard monomer comprises one of styrene, hydroxyethyl methacrylate and methyl methacrylate or a mixture thereof. Styrene is required to be introduced in order to improve the solvent resistance of the resin, methyl methacrylate and butyl acrylate are added in order to improve the stability of the resin, and a hydroxyethyl methacrylate functional monomer is required to be added in order to modify the hydroxy acrylic resin.
Preferably, the fluorine-silicon modified acrylic resin is obtained by performing silicon modification on acrylic resin through vinyl trimethoxy silane and performing fluorine modification through hexafluorobutyl methacrylate. The acrylic resin is firstly modified by silicon, then the silicon modified acrylic resin is used as a core and is modified by fluorine, and fluorine substances are wrapped outside the silicon modified acrylic resin to form the fluorine-silicon modified acrylic resin of spherical particles with a core-shell structure.
The method for coating the steel structure by using the anti-corrosion material is characterized by comprising the following steps:
1) base placement
a. Firstly, a base provided with rollers is placed on a steel structure, the rollers are arranged on the bottom surface of the base through a support plate, the two rollers which are parallel to each other are connected through a transmission shaft, a camera is arranged on one side of the support plate along the advancing direction, pictures of coating equipment in the advancing process can be shot in real time through the camera, and the problem that the coating equipment cannot normally coat due to stones and the like on the surface of the steel structure is avoided;
b. then a first driving box and a second driving box are installed along the top surface of the base, the first driving box drives a transmission shaft positioned on the front side to rotate, the second driving box drives a transmission shaft positioned on the rear side to rotate, a control box is installed on the top surface of the bottom plate, a battery pack is installed in the control box, the first driving box and the second driving box are controlled by the control box to work, rollers on two sides are driven to rotate, the base moves forwards along the top surface of the steel structure, the rotating speed of the rollers can be controlled by the first driving box and the second driving box, and the coating requirement is met;
c. then symmetrically installing upright columns along the top surface of the base, ensuring that the upright columns are arranged in parallel, determining the installation positions of a bottom layer material storage barrel, a surface layer material storage barrel and a hydraulic oil tank on the top surface of the base, and marking;
2) mounting of lifting platform
a. Firstly, according to design requirements, first hydraulic cylinders are symmetrically arranged at set positions along two sides of the top surface of a base, first piston rods with set strokes are arranged on the first hydraulic cylinders, a lifting platform can be driven to move up and down through the first hydraulic cylinders through the first piston rods, and the height position of the lifting platform is adjusted;
b. then, through holes matched with the stand columns are formed in the processed lifting platform, the lifting platform is sleeved on each stand column from top to bottom, and meanwhile, the top end of the first piston rod is connected to the bottom surface of the lifting platform, so that the lifting platform is guaranteed to move horizontally up and down;
c. determining the size of the protective cover according to the size of the upright column, processing the protective cover with corresponding size, installing a solar panel on the outer side surface of the protective cover, and placing the protective cover on the ground to be installed;
3) horizontal telescoping mechanism and lifting mechanism installation
a. After the lifting platform is installed, determining the stroke of the horizontal telescopic mechanism according to the horizontal movement distance of the bottom layer material coating mechanism and the surface layer material coating mechanism, determining the installation position of the horizontal telescopic mechanism along the front side and the rear side of the lifting platform, and installing two parallel fixed loop bars, so that the installation stability and reliability of the front coating mechanism and the rear coating mechanism are improved;
b. then selecting a horizontal moving plate with a proper size, installing a telescopic rod matched with the fixed loop bar along one side of the horizontal moving plate, inserting the horizontal moving plate into the fixed loop bar through the telescopic rod, and adjusting the position of the horizontal moving plate to meet the coating requirement;
c. then, selecting a corresponding second hydraulic cylinder along the top surfaces of the lifting table and the fixed sleeve rod, connecting a second piston rod to the second hydraulic cylinder, connecting the end part of the second piston rod to a telescopic rod through a boosting rod, driving the telescopic rod to horizontally move through the second piston rod and the boosting rod through the second hydraulic cylinder, and adjusting the horizontal position of the horizontal moving plate;
d. the processed lifting plate is horizontally placed below the horizontal moving plate according to design requirements, the fixed plates are symmetrically arranged on the side faces of the lifting plate, the third hydraulic cylinders are symmetrically arranged on the top face of the horizontal moving plate, the third hydraulic cylinders are connected with the fixed plates through third piston rods, and the third piston rods are driven to move through the third hydraulic cylinders, so that the height position of the lifting plate can be adjusted, and the requirements for adjusting the heights of the front coating mechanism and the rear coating mechanism are met;
4) bottom layer and top layer material coating mechanism installation
a. Firstly, a bottom material storage barrel is installed along a set position of the top surface of a base according to design requirements, a first positioning block and a second positioning block are respectively installed along a lifting platform and a horizontal moving plate on a front side horizontal telescopic mechanism, a first linking pipe and a second linking pipe are respectively installed on the first positioning block and the second positioning block, and the first linking pipe and the second linking pipe are communicated through an anticorrosive material conveying pipe, so that stable conveying of a bottom material is facilitated, and a coating effect is improved;
b. the first connecting pipe on the front side is connected with the bottom material storage barrel through the bottom material conveying pipe, a first conveying pump is arranged on the bottom material conveying pipe, and the first conveying pump can convey the bottom material in the bottom material storage barrel to the first connecting pipe through the bottom material conveying pipe, so that the bottom material can be stably and continuously conveyed;
c. then installing a surface layer material storage barrel at a set position along the top surface of the base according to design requirements, respectively installing a first positioning block and a second positioning block along a lifting platform and a horizontal moving plate on a rear-side horizontal telescopic mechanism, respectively installing a first linking pipe and a second linking pipe on the first positioning block and the second positioning block, and communicating the first linking pipe and the second linking pipe through an anticorrosive material conveying pipe, so that stable conveying of a surface layer material is facilitated, and a coating effect is improved;
d. the first connecting pipe on the rear side is connected with the surface layer material storage barrel through the surface layer material conveying pipe, and the second conveying pump is arranged on the surface layer material conveying pipe and can convey the surface layer material in the surface layer material storage barrel to the first connecting pipe through the surface layer material conveying pipe, so that the surface layer material can be stably and continuously conveyed;
e. finally, a front coating mechanism and a rear coating mechanism are symmetrically arranged along the lifting plates on the front side and the rear side, the second connecting pipe on the front side is connected with the front coating mechanism through two anticorrosive material flow dividing pipes, and the second connecting pipe on the rear side is connected with the rear coating mechanism through two anticorrosive material flow dividing pipes, so that the bottom layer material and the surface layer material in the anticorrosive material conveying pipe can be stably conveyed to the front coating mechanism and the rear coating mechanism;
5) hydraulic line installation
a. Firstly, installing corresponding hydraulic oil tanks at set positions of a base according to design requirements, symmetrically installing supporting blocks along the top surface of a lifting platform, horizontally installing hydraulic oil flow dividing pipes on the two supporting blocks, connecting the hydraulic oil flow dividing pipes with the hydraulic oil tanks through hydraulic oil conveying pipes, installing oil conveying pumps on the hydraulic oil conveying pipes, conveying the hydraulic oil in the hydraulic oil tanks to the hydraulic oil flow dividing pipes through the hydraulic oil conveying pipes through the oil conveying pumps, and ensuring that each hydraulic component works stably;
b. then, the two ends of the hydraulic oil flow dividing pipe are respectively connected with second hydraulic cylinders on the front side and the rear side through first hydraulic oil flow guiding pipes, the two ends of the hydraulic oil flow dividing pipe are respectively connected with third hydraulic cylinders on the front side and the rear side through second hydraulic oil flow guiding pipes, sealing treatment is carried out, and control precision of the second hydraulic cylinders and the third hydraulic cylinders is improved;
c. finally, fixedly mounting the protective cover on the top of the upright post, and checking the mounting condition of the equipment;
6) coating construction of steel structure surface
a. After the equipment is detected to be qualified, respectively filling the bottom layer material and the surface layer material into a bottom layer material storage barrel and a surface layer material storage barrel, respectively conveying the bottom layer material and the surface layer material to a front coating mechanism and a rear coating mechanism through a first conveying pump and a second conveying pump for trial spraying, and adjusting the angle of a coating assembly;
b. then filling hydraulic oil into the hydraulic oil tank, conveying the hydraulic oil into each hydraulic cylinder through an oil conveying pump, driving the lifting platform to move to a set height position through the first hydraulic cylinder through the first piston rod, starting the third hydraulic cylinder, and driving the front coating mechanism and the rear coating mechanism to move to a height position to be coated through the third piston rod;
c. coating the surface of the steel structure through the front coating mechanism and the rear coating mechanism, driving the roller to rotate through the first driving box and the second driving box, enabling the base to move along the path direction of the steel structure, and coating the surface layer material after the bottom layer material is coated until the steel structure is coated;
d. and finally, removing the coating equipment in sequence and cleaning.
The coating method can realize continuous coating of the bottom layer and the surface layer of the surface of the steel structure, is favorable for ensuring the coating quality, avoids the influence on the overall anticorrosion effect of the steel structure due to coating omission or uneven coating, greatly reduces the labor intensity of manual operation and saves coating materials.
Furthermore, the front coating mechanism and the rear coating mechanism both comprise a cross beam, cantilevers, a fourth hydraulic cylinder, a fifth hydraulic cylinder and coating components, a connecting plate is arranged on the top surface of the cross beam, the cross beam is conveniently and fixedly connected with the lifting plate through the connecting plate, so that the front coating mechanism and the rear coating mechanism can synchronously move up and down along with the lifting table to meet the coating requirements of a rail steel structure, the two cantilevers are arranged on the bottom surface of the cross beam, a first moving rod and a second moving rod can be positioned through the cantilevers, a base plate is arranged at the bottom of the cross beam, the fourth hydraulic cylinder and the fifth hydraulic cylinder are arranged on the side surface of the base plate, the base plate improves the stability and reliability of the connection of the fourth hydraulic cylinder and the fifth hydraulic cylinder, the fourth hydraulic cylinder and the fifth hydraulic cylinder are respectively connected with the first moving rod and the second moving rod, and the two coating components are respectively connected with the first moving rod and the second moving rod through a first boosting block and a second boosting block, drive first carriage release lever and second carriage release lever horizontal migration through fourth pneumatic cylinder and fifth pneumatic cylinder, and then can drive two coating subassembly horizontal migration through first boosting piece and second boosting piece, adjust the interval between coating subassembly and the steel construction surface, improve coated effect, fourth pneumatic cylinder and fifth pneumatic cylinder all communicate with the hydraulic oil shunt tubes.
Further, the coating subassembly includes the guard plate, branch stream block and at least three shower nozzle subassembly, the guard plate passes through the first boost block of fixture block difference fixed connection and second boost block, branch stream block fixed connection is on the top surface of guard plate, the shower nozzle subassembly sets up along the inboard slope of guard plate, the installation of the shower nozzle subassembly of not only being convenient for of guard plate, and can shelter from the material of spraying in the coating process, the material of avoiding the spraying splashes and causes the waste, the fixture block has improved the stability of being connected of guard plate and first boost block and second boost block, the shower nozzle subassembly that the slope set up can be according to the width regulation coating angle of steel construction, avoid causing steel construction surface to miss to scribble, influence the effect of coating.
Further, the shower nozzle subassembly includes the lug, shower nozzle and anticorrosive material honeycomb duct, the lug is fixed in on the medial surface of guard plate, the shower nozzle passes through angle adjust knob and rotates the connection on the lug, the shower nozzle passes through anticorrosive material honeycomb duct connection shunting block, anticorrosive material shunt tubes is connected to shunting block, the lug can play the effect of support to the shower nozzle, angular position through angle adjust knob adjusting nozzle, the improvement is to the coating effect and the quality on steel construction surface, the anticorrosive material honeycomb duct is convenient for carry bottom material and surface course material respectively to corresponding shower nozzle on.
Further, be provided with distance sensor on the medial surface of guard plate, distance sensor can be used for detecting the interval between guard plate and the steel construction, improves the coating effect, avoids operating anticorrosive material's waste simultaneously.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the two-layer coating system has the functional gradient performance, namely, after the bottom layer material is coated on the steel structure, part of components gradually migrate to the surface of the steel structure and permeate into micropores or cracks (the molecular weight is small, the surface energy is large), the adhesive force and the corrosion resistance with the steel structure are improved, the adhesion is good, and the effect of adhering the steel structure and the surface layer is achieved; the surface material has low surface energy, can form a compact film, and has self-cleaning performance and anti-aging performance. The materials of the bottom layer and the surface layer are mutually compatible, and the performance is gradually changed to form the functionally graded material.
2. The coating method can realize continuous coating of the bottom layer and the surface layer of the surface of the steel structure, is favorable for ensuring the coating quality, avoids the influence on the overall anticorrosion effect of the steel structure due to coating omission or uneven coating, greatly reduces the labor intensity of manual operation and saves coating materials.
Description of the drawings:
the invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a coating apparatus in a method of coating a steel structure with an anticorrosive material according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic view of the front and rear coating mechanisms of the present invention;
fig. 4 is a partial enlarged view of the point ii in fig. 3.
In the figure: 1-a base; 2-upright post; 3-a protective cover; 4-a control box; 5-a bottom material storage barrel; 6-a surface material storage barrel; 7-a hydraulic oil tank; 8-a first drive box; 9-a second drive box; 10-a support plate; 11-a drive shaft; 12-a roller; 13-a camera; 14-a lifting platform; 15-a first hydraulic cylinder; 16-a first piston rod; 17-a front coating mechanism; 18-a post-coating mechanism; 19-hydraulic oil delivery pipe; 20-a bottom layer material conveying pipe; 21-conveying pipe for facing material; 22-horizontal moving plate; 23-fixing the loop bar; 24-a telescopic rod; 25-a second hydraulic cylinder; 26-a second piston rod; 27-a lifter plate; 28-a third hydraulic cylinder; 29-fixing plate; 30-a third piston rod; 31-a support block; 32-hydraulic oil shunt tubes; 33-a first hydraulic oil flow guide pipe; 34-a second hydraulic oil guide pipe; 35-a first positioning block; 36-a second locating block; 37-a first adapter tube; 38-a second adapter tube; 39-conveying pipe of anticorrosive material; 40-anticorrosive material shunt tubes; 41-a cross beam; 42-cantilever; 43-a connecting plate; 44-a fourth hydraulic cylinder; 45-a fifth hydraulic cylinder; 46-a first travel bar; 47-a second travel bar; 48-a substrate; 49-first boost block; 50-a second boosting block; 51-protective plate; 52-a shunting block; 53-a fixture block; 54-a bump; 55-anticorrosive material honeycomb duct; 56-spray head; 57-angle adjustment knob; 58-distance sensor.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms first, second and the like in the description and in the claims, and in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The invention relates to an anticorrosive material, which comprises a bottom layer and a surface layer, wherein the bottom layer is modified silicon rubber containing a base material, a plasticizer, a filler, a cross-linking agent, an antirust agent, a catalyst and tackifying resin, and the surface layer is fluorine-silicon modified acrylic resin containing acrylic resin, an initiator, a silicon monomer, a fluorine monomer and a solvent. After the bottom layer material is coated on the steel structure, part of components gradually migrate to the surface of the steel structure and permeate into micropores or cracks (small molecular weight and large surface energy), so that the adhesive force and the corrosion resistance of the steel structure are improved, the adhesion is good, and the effect of adhering the steel structure and the surface layer is achieved; the surface material has low surface energy, can form a compact film, and has self-cleaning performance and anti-aging performance. The materials of the bottom layer and the surface layer are mutually compatible, and the performance is gradually changed to form the functionally graded material.
Preferably, the base material on the bottom layer is alpha, omega-dihydroxy polydimethylsiloxane, the plasticizer is silicone oil, can reduce the hardness and modulus of liquid rubber, improve the elongation and improve the viscosity of the liquid rubber, the filler is fumed silica, the cross-linking agent is one or a mixture of methyl tributyrinoxime silane and vinyl tributyrinoxime silane, linear polysiloxane can be cross-linked into an elastomer with a net structure, the antirust agent is barium petroleum sulfonate, the catalyst is dibutyl tin dilaurate, the tackifying resin is EVA, and the addition of the tackifying resin to liquid rubber can ensure that the initial viscosity and the wet viscosity of bottom rubber are good, the curing speed is high, the storage stability is high, the surface tension is small, the adhesive has good adhesion to a surface layer, and the adhesive has high reactivity.
Preferably, the acrylic resin on the surface layer comprises a soft monomer and a hard monomer, the initiator is benzoyl peroxide, the silicon monomer is vinyl trimethoxy silane, the fluorine monomer is hexafluorobutyl methacrylate, and the solvent is n-butyl alcohol.
Preferably, the soft monomer comprises butyl acrylate, and the hard monomer comprises one of styrene, hydroxyethyl methacrylate and methyl methacrylate or a mixture thereof. Styrene is required to be introduced in order to improve the solvent resistance of the resin, methyl methacrylate and butyl acrylate are added in order to improve the stability of the resin, and a hydroxyethyl methacrylate functional monomer is required to be added in order to modify the hydroxy acrylic resin.
Preferably, the fluorine-silicon modified acrylic resin is obtained by performing silicon modification on acrylic resin through vinyl trimethoxy silane and performing fluorine modification through hexafluorobutyl methacrylate. The acrylic resin is firstly modified by silicon, then the silicon modified acrylic resin is used as a core and is modified by fluorine, and fluorine substances are wrapped outside the silicon modified acrylic resin to form the fluorine-silicon modified acrylic resin of spherical particles with a core-shell structure.
A method of coating a steel structure with an anti-corrosive material as described above, as shown in fig. 1 to 4, comprises the steps of:
1) base 1 placement
a. Firstly, a base 1 provided with rollers 12 is placed on a steel structure, the rollers 12 are arranged on the bottom surface of the base 1 through a support plate 10, the two parallel rollers 12 are connected through a transmission shaft 11, a camera 13 is arranged on one side of the support plate 10 along the advancing direction, pictures of coating equipment in the advancing process can be shot in real time through the camera 13, and the problem that the coating equipment cannot normally coat due to stones and the like on the surface of the steel structure is avoided;
b. then a first driving box 8 and a second driving box 9 are installed along the top surface of the base 1, the first driving box 8 drives a transmission shaft 11 positioned on the front side to rotate, the second driving box 9 drives a transmission shaft 11 positioned on the rear side to rotate, a control box 4 is installed on the top surface of the bottom plate, a battery pack is installed in the control box 4, the first driving box 8 and the second driving box 9 are controlled by the control box 4 to work, rollers 12 on two sides are driven to rotate, the base 1 moves forward along the top surface of the steel structure, and the rotating speed of the rollers 12 can be controlled by the first driving box 8 and the second driving box 9 to meet the coating requirement;
c. then symmetrically installing the upright posts 2 along the top surface of the base 1, ensuring that the upright posts 2 are arranged in parallel, determining the installation positions of a bottom layer material storage barrel 5, a surface layer material storage barrel 6 and a hydraulic oil tank 7 on the top surface of the base 1, and marking;
2) mounting of the lifting platform 14
a. Firstly, according to design requirements, first hydraulic cylinders 15 are symmetrically arranged at set positions on two sides of the top surface of a base 1, first piston rods 16 with set strokes are arranged on the first hydraulic cylinders 15, the first hydraulic cylinders 15 can drive a lifting platform 14 to move up and down through the first piston rods 16, and the height position of the lifting platform 14 is adjusted;
b. then, through holes matched with the upright posts 2 are formed in the processed lifting platform 14, the lifting platform 14 is sleeved on each upright post 2 from top to bottom, and meanwhile, the top end of the first piston rod 16 is connected to the bottom surface of the lifting platform 14, so that the lifting platform 14 is ensured to move horizontally up and down;
c. secondly, determining the size of the protective cover 3 according to the size of the upright post 2, processing the protective cover 3 with corresponding size, installing a solar panel on the outer side surface of the protective cover 3, and placing the protective cover 3 on the ground to be installed;
3) horizontal telescoping mechanism and lifting mechanism installation
a. After the lifting platform 14 is installed, determining the stroke of the horizontal telescopic mechanism according to the horizontal movement distance of the bottom layer material coating mechanism and the surface layer material coating mechanism, determining the installation position of the horizontal telescopic mechanism along the front side and the rear side of the lifting platform 14, and installing two parallel fixed loop bars 23, so that the installation stability and reliability of the front coating mechanism 17 and the rear coating mechanism 18 are improved;
b. then selecting a horizontal moving plate 22 with a proper size, installing an expansion link 24 matched with the fixed loop bar 23 along one side of the horizontal moving plate 22, inserting the horizontal moving plate 22 into the fixed loop bar 23 through the expansion link 24, and adjusting the position of the horizontal moving plate 22 to meet the coating requirement;
c. then, selecting a corresponding second hydraulic cylinder 25 along the top surfaces of the lifting table 14 and the fixed sleeve rod 23, connecting a second piston rod 26 to the second hydraulic cylinder 25, connecting the end part of the second piston rod 26 to the telescopic rod 24 through a boosting rod, driving the telescopic rod 24 to move horizontally through the second piston rod 26 and the boosting rod by the second hydraulic cylinder 25, and adjusting the horizontal position of the horizontal moving plate 22;
d. the processed lifting plate 27 is horizontally placed below the horizontal moving plate 22 according to design requirements, fixing plates 29 are symmetrically installed on the side faces of the lifting plate 27, third hydraulic cylinders 28 are symmetrically installed on the top face of the horizontal moving plate 22, the third hydraulic cylinders 28 are connected with the fixing plates 29 through third piston rods 30, the third piston rods 30 are driven to move through the third hydraulic cylinders 28, and therefore the height position of the lifting plate 27 can be adjusted, and the requirements for adjusting the heights of the front coating mechanism 17 and the rear coating mechanism 18 are met;
4) bottom layer and top layer material coating mechanism installation
a. Firstly, a bottom layer material storage barrel 5 is installed along a set position on the top surface of a base 1 according to design requirements, a first positioning block 35 and a second positioning block 36 are respectively installed along a lifting platform 14 and a horizontal moving plate 22 on a front side horizontal telescopic mechanism, a first connecting pipe 37 and a second connecting pipe 38 are respectively installed on the first positioning block 35 and the second positioning block 36, and the first connecting pipe 37 and the second connecting pipe 38 are communicated through an anticorrosive material conveying pipe 39, so that stable conveying of a bottom layer material is facilitated, and a coating effect is improved;
b. then, the first connecting pipe 37 at the front side is connected with the bottom material storage barrel 5 through the bottom material conveying pipe 20, and a first conveying pump is arranged on the bottom material conveying pipe 20, so that the bottom material in the bottom material storage barrel 5 can be conveyed to the first connecting pipe 37 through the bottom material conveying pipe 20 by the first conveying pump, and the stable and continuous conveying of the bottom material is facilitated;
c. then, according to design requirements, a surface layer material storage barrel 6 is installed at a set position on the top surface of the base 1, a first positioning block 35 and a second positioning block 36 are respectively installed along the lifting table 14 and the horizontal moving plate 22 on the rear side horizontal telescopic mechanism, a first connecting pipe 37 and a second connecting pipe 38 are respectively installed on the first positioning block 35 and the second positioning block 36, the first connecting pipe 37 and the second connecting pipe 38 are communicated through an anticorrosive material conveying pipe 39, stable conveying of a surface layer material is facilitated, and a coating effect is improved;
d. then the first connecting pipe 37 at the rear side is connected with the surface layer material storage barrel 6 through the surface layer material conveying pipe 21, and a second conveying pump is arranged on the surface layer material conveying pipe 21, and can convey the surface layer material in the surface layer material storage barrel 6 to the first connecting pipe 37 through the surface layer material conveying pipe 21, so that the surface layer material can be stably and continuously conveyed;
e. finally, the front coating mechanism 17 and the rear coating mechanism 18 are symmetrically installed along the lifting plates 27 at the front side and the rear side, the second connecting pipe 38 at the front side is connected with the front coating mechanism 17 through two anticorrosive material shunt pipes 40, and the second connecting pipe 38 at the rear side is connected with the rear coating mechanism 18 through two anticorrosive material shunt pipes 40, so that the bottom layer material and the surface layer material in the anticorrosive material conveying pipe 39 can be stably conveyed to the front coating mechanism 17 and the rear coating mechanism 18;
the front coating mechanism 17 and the rear coating mechanism 18 both comprise a beam 41, a cantilever 42, a fourth hydraulic cylinder 44, a fifth hydraulic cylinder 45 and a coating component, a connecting plate 43 is arranged on the top surface of the beam 41, the beam 41 and the lifting plate 27 are fixedly connected through the connecting plate 43, the front coating mechanism 17 and the rear coating mechanism 18 can synchronously move up and down along with the lifting table 14 to meet the coating requirement of a rail steel structure, the two cantilevers 42 are arranged on the bottom surface of the beam 41, a first moving rod 46 and a second moving rod 47 can be positioned through the cantilevers 42, a base plate 48 is arranged at the bottom of the beam 41, the fourth hydraulic cylinder 44 and the fifth hydraulic cylinder 45 are arranged on the side surface of the base plate 48, the base plate 48 improves the stability and the reliability of the connection of the fourth hydraulic cylinder 44 and the fifth hydraulic cylinder 45, the first moving rod 46 and the second moving rod 47 are respectively connected onto the fourth hydraulic cylinder 44 and the fifth hydraulic cylinder 45, two coating assemblies are respectively connected with a first moving rod 46 and a second moving rod 47 through a first boosting block 49 and a second boosting block 50, the first moving rod 46 and the second moving rod 47 are driven to horizontally move through a fourth hydraulic cylinder 44 and a fifth hydraulic cylinder 45, then the two coating assemblies can be driven to horizontally move through the first boosting block 49 and the second boosting block 50, the distance between the coating assemblies and the surface of a steel structure is adjusted, the coating effect is improved, and the fourth hydraulic cylinder 44 and the fifth hydraulic cylinder 45 are communicated with a hydraulic oil flow dividing pipe 32.
The coating assembly comprises a protection plate 51, a shunting block 52 and at least three spray nozzles 56, the protection plate 51 is respectively fixedly connected with a first boosting block 49 and a second boosting block 50 through a clamping block 53, the shunting block 52 is fixedly connected on the top surface of the protection plate 51, the spray nozzles 56 are arranged along the inner side of the protection plate 51 in an inclined mode, the protection plate 51 is convenient to mount the spray nozzles 56, the sprayed materials can be shielded in the coating process, the sprayed materials are prevented from splashing to cause waste, the clamping block 53 improves the connection stability of the protection plate 51 and the first boosting block 49 and the second boosting block 50, the spray nozzles 56 which are obliquely arranged can adjust the coating angle according to the width of a steel structure, the phenomenon that the surface of the steel structure is leaked to coat is avoided, and the coating effect is influenced.
The nozzle 56 subassembly includes the lug 54, shower nozzle 56 and anticorrosive material honeycomb duct 55, the lug 54 is fixed in on the medial surface of guard plate 51, shower nozzle 56 rotates through angle adjust knob 57 and connects on lug 54, shower nozzle 56 passes through anticorrosive material honeycomb duct 55 and connects branch stream block 52, branch stream block 52 connects anticorrosive material shunt tubes 40, lug 54 can play the effect of support to shower nozzle 56, angular position through angle adjust knob 57 adjust nozzle 56, improve coating effect and quality to the steel construction surface, anticorrosive material honeycomb duct 55 is convenient for carry bottom material and surface course material respectively to corresponding shower nozzle 56 on.
Be provided with distance sensor 58 on the medial surface of guard plate 51, distance sensor 58 can be used for detecting the interval between guard plate 51 and the steel construction, improves the coating effect, avoids operating anticorrosive material's waste simultaneously.
5) Hydraulic line installation
a. Firstly, according to design requirements, installing corresponding hydraulic oil tanks 7 at set positions of a base 1, symmetrically installing supporting blocks 31 along the top surface of a lifting platform 14, horizontally installing hydraulic oil shunt pipes 32 on the two supporting blocks 31, connecting the hydraulic oil shunt pipes 32 with the hydraulic oil tanks 7 through hydraulic oil conveying pipes 19, installing oil conveying pumps on the hydraulic oil conveying pipes 19, conveying hydraulic oil in the hydraulic oil tanks 7 to the hydraulic oil shunt pipes 32 through the hydraulic oil conveying pipes 19 through the oil conveying pumps, and ensuring that all hydraulic parts stably work;
b. then, the two ends of the hydraulic oil flow dividing pipe 32 are respectively connected with the second hydraulic cylinders 25 on the front side and the rear side through the first hydraulic oil flow guiding pipes 33, the two ends of the hydraulic oil flow dividing pipe 32 are respectively connected with the third hydraulic cylinders 28 on the front side and the rear side through the second hydraulic oil flow guiding pipes 34, sealing treatment is carried out, and control precision of the second hydraulic cylinders 25 and the third hydraulic cylinders 28 is improved;
c. finally, fixedly mounting the protective cover 3 on the top of the upright post 2, and checking the mounting condition of the equipment;
6) coating construction of steel structure surface
a. After the equipment is detected to be qualified, respectively filling the bottom layer material and the surface layer material into the bottom layer material storage barrel 5 and the surface layer material storage barrel 6, respectively conveying the bottom layer material and the surface layer material to the front coating mechanism 17 and the rear coating mechanism 18 through the first conveying pump and the second conveying pump for trial spraying, and adjusting the angle of the coating assembly;
b. then filling hydraulic oil into the hydraulic oil tank 7, conveying the hydraulic oil into each hydraulic cylinder through an oil conveying pump, driving the lifting platform 14 to move to a set height position through the first hydraulic cylinder 15 via the first piston rod 16, starting the third hydraulic cylinder 28, and driving the front coating mechanism 17 and the rear coating mechanism 18 to move to a height position required to be coated through the third piston rod 30;
c. coating the surface of the steel structure through a front coating mechanism 17 and a rear coating mechanism 18, driving the roller 12 to rotate through the first driving box 8 and the second driving box 9, enabling the base 1 to move along the path direction of the steel structure, and coating a surface layer material after coating a bottom layer material until the steel structure is coated;
d. and finally, removing the coating equipment in sequence and cleaning.
The coating method can realize continuous coating of the bottom layer and the surface layer of the surface of the steel structure, is favorable for ensuring the coating quality, avoids the influence on the overall anticorrosion effect of the steel structure due to coating omission or uneven coating, greatly reduces the labor intensity of manual operation and saves coating materials.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.

Claims (8)

1. An anticorrosive material characterized in that: the modified silicone rubber comprises a bottom layer and a surface layer, wherein the bottom layer is modified silicone rubber containing a base material, a plasticizer, a filler, a cross-linking agent, an antirust agent, a catalyst and tackifying resin, the base material is alpha, omega-dihydroxy polydimethylsiloxane, the plasticizer is silicone oil, the filler is fumed silica, the cross-linking agent is one or a mixture of methyl tributyl ketoxime silane and vinyl tributyroxime silane, the antirust agent is barium petroleum sulfonate, the tackifying resin is EVA, and the surface layer is fluorosilicone modified acrylic resin containing acrylic resin, an initiator, a silicon monomer, a fluorine monomer and a solvent; the acrylic resin on the surface layer comprises a soft monomer and a hard monomer, the initiator is benzoyl peroxide, the silicon monomer is vinyl trimethoxy silane, the fluorine monomer is hexafluorobutyl methacrylate, and the solvent is n-butyl alcohol.
2. The corrosion-resistant material according to claim 1, wherein: the catalyst in the bottom layer is dibutyl tin dilaurate.
3. The corrosion-resistant material according to claim 1, wherein: the soft monomer comprises butyl acrylate, and the hard monomer comprises one of styrene, hydroxyethyl methacrylate and methyl methacrylate or a mixture thereof.
4. The corrosion-resistant material according to claim 1, wherein: the fluorine-silicon modified acrylic resin is obtained by performing silicon modification on acrylic resin through vinyl trimethoxy silane and performing fluorine modification through hexafluorobutyl methacrylate.
5. Method for coating a steel structure with an anti-corrosion material according to any of claims 1 to 4, characterized in that it comprises the following steps:
1) base placement
a. Firstly, a base provided with rollers is placed on a steel structure, the rollers are arranged on the bottom surface of the base through a support plate, the two rollers which are parallel to each other are connected through a transmission shaft, and a camera is arranged on one side of the support plate along the traveling direction;
b. then a first driving box and a second driving box are installed along the top surface of the base, the first driving box drives a transmission shaft positioned on the front side to rotate, the second driving box drives a transmission shaft positioned on the rear side to rotate, a control box is installed on the top surface of the bottom plate, a battery pack is installed in the control box, the first driving box and the second driving box are controlled by the control box to work, rollers on two sides are driven to rotate, and the base moves forward along the top surface of the steel structure;
c. then symmetrically installing upright columns along the top surface of the base, ensuring that the upright columns are arranged in parallel, determining the installation positions of a bottom layer material storage barrel, a surface layer material storage barrel and a hydraulic oil tank on the top surface of the base, and marking;
2) mounting of lifting platform
a. Firstly, symmetrically installing first hydraulic cylinders along set positions on two sides of the top surface of a base according to design requirements, and installing first piston rods with set strokes on the first hydraulic cylinders;
b. then, through holes matched with the stand columns are formed in the processed lifting platform, the lifting platform is sleeved on each stand column from top to bottom, and meanwhile, the top end of the first piston rod is connected to the bottom surface of the lifting platform, so that the lifting platform is guaranteed to move horizontally up and down;
c. determining the size of the protective cover according to the size of the upright column, processing the protective cover with corresponding size, installing a solar panel on the outer side surface of the protective cover, and placing the protective cover on the ground to be installed;
3) horizontal telescoping mechanism and lifting mechanism installation
a. After the lifting platform is installed, determining the stroke of a horizontal telescopic mechanism according to the horizontal movement distance of a bottom layer material coating mechanism and a surface layer material coating mechanism, determining the installation position of the horizontal telescopic mechanism along the front side and the rear side of the lifting platform, and installing two parallel fixed loop bars;
b. then selecting a horizontal moving plate with a proper size, installing a telescopic rod matched with the fixed loop bar along one side of the horizontal moving plate, and inserting the horizontal moving plate into the fixed loop bar through the telescopic rod;
c. then, selecting a corresponding second hydraulic cylinder along the top surfaces of the lifting platform and the fixed sleeve rod, connecting a second piston rod to the second hydraulic cylinder, and connecting the end part of the second piston rod to a telescopic rod through a boosting rod;
d. horizontally placing the processed lifting plate below the horizontal moving plate according to design requirements, symmetrically installing fixed plates on the side surfaces of the lifting plate, symmetrically installing third hydraulic cylinders on the top surface of the horizontal moving plate, and connecting the third hydraulic cylinders with the fixed plates through third piston rods;
4) bottom layer and top layer material coating mechanism installation
a. Firstly, installing a bottom material storage barrel along a set position on the top surface of a base according to design requirements, respectively installing a first positioning block and a second positioning block along a lifting platform and a horizontal moving plate on a front side horizontal telescopic mechanism, respectively installing a first linking pipe and a second linking pipe on the first positioning block and the second positioning block, and communicating the first linking pipe and the second linking pipe through an anticorrosive material conveying pipe;
b. connecting the first connecting pipe at the front side with a bottom material storage barrel through a bottom material conveying pipe, and mounting a first conveying pump on the bottom material conveying pipe;
c. then installing a surface layer material storage barrel at a set position along the top surface of the base according to design requirements, respectively installing a first positioning block and a second positioning block along a lifting platform and a horizontal moving plate on a rear-side horizontal telescopic mechanism, respectively installing a first linking pipe and a second linking pipe on the first positioning block and the second positioning block, and communicating the first linking pipe and the second linking pipe through an anticorrosive material conveying pipe;
d. connecting the first connecting pipe at the rear side with a surface layer material storage barrel through a surface layer material conveying pipe, and mounting a second conveying pump on the surface layer material conveying pipe;
e. finally, a front coating mechanism and a rear coating mechanism are symmetrically arranged along the lifting plates on the front side and the rear side, the second connecting pipe on the front side is connected with the front coating mechanism through two anticorrosive material flow dividing pipes, and the second connecting pipe on the rear side is connected with the rear coating mechanism through two anticorrosive material flow dividing pipes; the front coating mechanism and the rear coating mechanism respectively comprise a beam, cantilevers, a fourth hydraulic cylinder, a fifth hydraulic cylinder and coating components, a connecting plate is arranged on the top surface of the beam, the two cantilevers are arranged on the bottom surface of the beam, a base plate is arranged at the bottom of the beam, the fourth hydraulic cylinder and the fifth hydraulic cylinder are arranged on the side surface of the base plate, the fourth hydraulic cylinder and the fifth hydraulic cylinder are respectively connected with a first moving rod and a second moving rod, and the two coating components are respectively connected with the first moving rod and the second moving rod through a first boosting block and a second boosting block;
5) hydraulic line installation
a. Firstly, installing corresponding hydraulic oil tanks at set positions of a base according to design requirements, symmetrically installing supporting blocks along the top surface of a lifting platform, horizontally installing hydraulic oil shunt pipes on the two supporting blocks, connecting the hydraulic oil shunt pipes with the hydraulic oil tanks through hydraulic oil conveying pipes, and installing oil conveying pumps on the hydraulic oil conveying pipes;
b. then, the two ends of the hydraulic oil flow dividing pipe are respectively connected with second hydraulic cylinders on the front side and the rear side through first hydraulic oil flow dividing pipes, the two ends of the hydraulic oil flow dividing pipe are respectively connected with third hydraulic cylinders on the front side and the rear side through second hydraulic oil flow dividing pipes, and sealing treatment is carried out;
c. finally, fixedly mounting the protective cover on the top of the upright post, and checking the mounting condition of the equipment;
6) coating construction of steel structure surface
a. After the equipment is detected to be qualified, respectively filling the bottom layer material and the surface layer material into a bottom layer material storage barrel and a surface layer material storage barrel, respectively conveying the bottom layer material and the surface layer material to a front coating mechanism and a rear coating mechanism through a first conveying pump and a second conveying pump for trial spraying, and adjusting the angle of a coating assembly;
b. then filling hydraulic oil into the hydraulic oil tank, conveying the hydraulic oil into each hydraulic cylinder through an oil conveying pump, driving the lifting platform to move to a set height position through the first hydraulic cylinder through the first piston rod, starting the third hydraulic cylinder, and driving the front coating mechanism and the rear coating mechanism to move to a height position to be coated through the third piston rod;
c. coating the surface of the steel structure through the front coating mechanism and the rear coating mechanism, driving the roller to rotate through the first driving box and the second driving box, enabling the base to move along the path direction of the steel structure, and coating the surface layer material after the bottom layer material is coated until the steel structure is coated;
d. and finally, removing the coating equipment in sequence and cleaning.
6. The method of claim 5, wherein the coating of the steel structure with the corrosion protection material comprises: the coating subassembly includes guard plate, branch stream block and at least three shower nozzle subassembly, the guard plate passes through fixture block difference fixed connection first boost block with the second boost block, branch stream block fixed connection be in on the top surface of guard plate, the shower nozzle subassembly is followed the inboard slope of guard plate sets up.
7. The method of claim 6, wherein the coating of the steel structure with the corrosion protection material comprises: the shower nozzle subassembly includes lug, shower nozzle and anticorrosive material honeycomb duct, the lug is fixed in on the medial surface of guard plate, the shower nozzle passes through angle adjust knob and rotates to be connected on the lug, the shower nozzle passes through anticorrosive material honeycomb duct connects divide the stream block, divide the stream block to connect the anticorrosive material shunt tubes.
8. The method of claim 6, wherein the coating of the steel structure with the corrosion protection material comprises: and a distance sensor is arranged on the inner side surface of the protection plate.
CN202110637128.9A 2021-06-08 2021-06-08 Anti-corrosion material and method for coating steel structure by adopting same Active CN113337147B (en)

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