CN109396002A - Steel structure anti-corrosion paint construction technology - Google Patents
Steel structure anti-corrosion paint construction technology Download PDFInfo
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- CN109396002A CN109396002A CN201811266673.6A CN201811266673A CN109396002A CN 109396002 A CN109396002 A CN 109396002A CN 201811266673 A CN201811266673 A CN 201811266673A CN 109396002 A CN109396002 A CN 109396002A
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- 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
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- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
-
- 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
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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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
- C09D5/002—Priming 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
- B05D2430/00—Component used as a filler in the composition
-
- 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
- B05D2451/00—Type of carrier, type of coating (Multilayers)
-
- 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
- B05D2504/00—Epoxy polymers
-
- 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
- B05D2506/00—Halogenated polymers
- B05D2506/10—Fluorinated polymers
- B05D2506/15—Polytetrafluoroethylene [PTFE]
-
- 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
- B05D2508/00—Polyesters
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- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/327—Aluminium phosphate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
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Abstract
The present invention relates to steel structure anti-corrosion paint construction technologies, belong to steel structure anti-corrosion process technical field.The mixture of 2-3 hours sprayings silicone modified polyester resins and barium sulfate, the thickness of priming paint are maintained at 60-90 μm after sand derusting；Anti-corrosion film layer: in the case where priming paint is half-dried, polytetrafluoroethylene (PTFE) heat insulating and corrosion film is sprayed, thicknesses of layers is controlled at 20-30 μm；Empty roller coating: after or so half an hour, by roller in the overhead roller coating of anti-corrosion film layer, 2-3 all over；Intermediate coat spraying: spraying intermediate primer layers, spraying epoxy-mica iron oxide and epoxy nano coating, first pass is aerial spraying, after 1 hour, two layers of roller coating again；Protective film layer: protective layer is the mixture of UV glue, silicone resin, epoxy resin, is spaced 2 hours or so between two layers, two layers of spraying.Stability is high, improves the antiseptic property and wearability of steel construction, and have preferable inoxidizability, the density of lacquer painting itself is more close, can extend the service life of lacquer painting using nanotechnology, and waterproof performance is good.
Description
Technical field
The present invention relates to steel structure anti-corrosion paint construction technologies, belong to steel structure anti-corrosion process technical field.
Background technique
Large-scale steel structure as, lightning rod steel tower, offshore lighthouse, large reservoir lock, for water tower, offshore oil production facility, tank car,
Spherical tank, storage tank, fuel tank, carbonators, heat exchanger, chimney, container, naval vessel hull, offshore platform steel construction etc. are all to locate for a long time
Under Yu Haiyang's atmosphere, industrial atmospheric environment.It to be used for a long time, and is repaired without large area, long-acting coating protection is
To be preceding best, for service life up to 20-30, maintenance cost is few, can get apparent economic benefit
Steel construction under atmospheric environment is changed by sunlight, dust storm, sleet, frost and dew and temperature and humidity throughout the year and is made
With wherein the oxygen in atmosphere and moisture are an important factor for causing outdoor iron structure to corrode, to cause the industry of corrosion of steel structure
Gas contains SO2, CO2, NO2, CI2, H2S and NH3 etc., although these composition content very littles, all to the corrosion harmfulness of steel
Be it is very important, wherein SO2 influences maximum, and CI2 can be such that metallic surface passivating film is destroyed.These gases are soluble in water to be in
Acidity forms acid rain, corrodes metallic facility.
The characteristics of marine atmosphere is containing a large amount of salt, mainly NaCI, and salt particle settles on the metal surface, due to it
CI- itself has very strong aggressivity to electric action with moisture absorption and increase surface liquid film again simultaneously, thus has aggravated gold
The corrosion of metal surface.Steel construction is closer from seashore, and corrosion is also more serious, high times in the atmosphere of etch ratio inland.
With anticorrosion of steel structure is required raising and environmental protection limitation, steel structure anti-corrosion paint anticorrosive paint more into
Develop towards the direction of low solvent, high solid composition to one step, cause coating become high viscosity, thick-slurry type and be increasingly difficult to spray
It applies.Traditional construction method is manual brushing and aerial spraying, manual brushing not only inefficiency, but also is inevitably stayed
Lower brush mark, lacquer painting effect are difficult to satisfactory；Aerial spraying will certainly largely add because that cannot be atomized highly viscous anticorrosive paint
Diluent causes cost increase and environmental pollution, and excess dilution causes to paint film forming ability decline, influences the painting layer longevity
Life.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of steel structure anti-corrosion paint construction works
Skill improves the antiseptic property and wearability of steel construction, and has preferable inoxidizability, and the density of lacquer painting itself is more tight
It is close, the service life of lacquer painting can be extended using nanotechnology, waterproof performance is good.
To achieve the above object, the technical solution adopted by the present invention is that: the steel structure anti-corrosion paint construction technology includes
Following steps:
1, surface cleaning: the attached impurity on steel construction piece surface is cleaned out by air gun, and passes through coarse sandpaper
Polish off the apparent foreign matter in surface；
2, derusting by sandblasting: metal expression face reaches " steel surface rusting grade and derusting grade before coating " GB/ after derusting
St3 standard specified in T8923-88；The dorsal horn being not easily cleaned should also reach St2 standard.
3, basecoat paint: the mixture of 2-3 hours sprayings silicone modified polyester resins and barium sulfate, bottom after derusting by sandblasting
The thickness of paint is maintained at 60-90 μm；
4, anti-corrosion film layer: in the case where priming paint is half-dried, polytetrafluoroethylene (PTFE) heat insulating and corrosion film is sprayed, thicknesses of layers control exists
20-30μm；
5, empty roller coating: after or so half an hour, by roller in the overhead roller coating of anti-corrosion film layer, 2-3 all over；
6, intermediate coat sprays: spraying intermediate primer layers, spraying epoxy-mica iron oxide and epoxy nano coating, and first pass is sky
Gas blowout applies, and after 1 hour, two layers of roller coating again stands 2 hours or so；
7, protective film layer: protective layer is the mixture of UV glue, silicone resin, epoxy resin, is spaced between two layers, two layers of spraying
2 hours or so.
Preferably, the steel construction of unified specification can be put into polishing orbit by the surface cleaning, pass through the grinding wheel at four sides
Automatically grinding is not suitable for and the steel construction after assembling certainly just for components.
Preferably, a certain proportion of cement pulvis is added in abrasive material in the derusting by sandblasting, cement pulvis is utilized
Passivation prevents the flowing of metal surface electronics, achievees the purpose that antirust.
Preferably, the components by weight percent of priming paint is silicone modified polyester resin 20-30 parts, sulfuric acid in the basecoat paint
10-15 parts of barium, 2-5 parts of modified phosphate aluminium, 3-4 parts of modified zinc phosphate, 0.2-0.5 parts of defoaming agent, pigments and fillers soak 0.2-0.3
Part, 0.1-0.3 parts of dispersing agent, 0.1-0.15 parts of hydrotropy moisturizer, 0.1-0.2 parts of organosilicon auxiliary agent.
Preferably, the anti-corrosion film layer is aerial spraying or brushing, two layers totally anti-corrosion film layer, spacing between two layers of coatings
3 hours or so, first layer was thin compared with the second layer, and two layers of overall thickness controls within 30 μm.
Preferably, the components by weight percent of the intermediate coat are as follows: 10-20 parts of epoxy-mica iron oxide, 5-10 parts of epoxy resin,
3-8 parts of nano zine oxide, 2-7 parts of nano silica, 3-6 parts of nano-titanium dioxide, 2-4 parts of nanometer titanium dioxide aluminium, solvent 8-
10 parts, 0.1-0.3 parts of dispersing agent, 0.1-0.3 parts of defoaming agent, 1-1.5 parts of organosilicon auxiliary agent.
Preferably, the first layer of the protective film layer uses roller coating form, the second layer uses aerial spraying.
Preferably, St3 described in the step 2: referring to processed rusty surface Ying Luxian metallic luster.
St2: refer to oxide skin, rust of the processed rusty surface without visible meeting Cen, moisture content, greasy dirt, dirty dirt and weathering
Layer and coat of paint.
Preferably, the roller that the sky roller coating uses surface soft and smooth is in the roller coating of lacquer painting overhead, mainly detection paint layer is flat
Whole degree and density.
The present invention uses multilayer spraying operation, and bottom is good with matrix adhesive property, avoids Laser Strengthening Layer and base
Cracking phenomena；Middle layer is transition zone, and surface layer has better wear-resisting property, its corrosion-inhibiting coating of better antiseptic property and steel construction
The binding force of matrix is strong, averagely reaches 15.0-20Mpa, and surface hardness reaches HV410 or more, is much higher than national standard；It can reach
To long-effective corrosion purpose and also improve the appearance of structure, service life was up to 80 years or more.
After adopting the above structure, the invention has the following beneficial effects: steel structure anti-corrosion paint construction technology of the present invention, if
Meter is rationally, easy to operate, and stability is high, improves the antiseptic property and wearability of steel construction, and have preferable inoxidizability,
The density of lacquer painting itself is more close, can extend the service life of lacquer painting using nanotechnology, and waterproof performance is good, stage construction knot
The lacquer painting of conjunction can resist more rugged environment, the application range of widened steel construction.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is process flow chart of the invention；
Specific embodiment
The present invention will be further described below with reference to the drawings.
Referring to as shown in Figure 1, the steel structure anti-corrosion paint construction technology comprises the steps of:
1, surface cleaning: the attached impurity on steel construction piece surface is cleaned out by air gun, and passes through coarse sandpaper
Polish off the apparent foreign matter in surface；
2, derusting by sandblasting: metal expression face reaches " steel surface rusting grade and derusting grade before coating " GB/ after derusting
St3 standard specified in T8923-88；The dorsal horn being not easily cleaned should also reach St2 standard.
3, basecoat paint: the mixture of 2-3 hours sprayings silicone modified polyester resins and barium sulfate, bottom after derusting by sandblasting
The thickness of paint is maintained at 60-90 μm；
4, anti-corrosion film layer: in the case where priming paint is half-dried, polytetrafluoroethylene (PTFE) heat insulating and corrosion film is sprayed, thicknesses of layers control exists
20-30μm；
5, empty roller coating: after or so half an hour, by roller in the overhead roller coating of anti-corrosion film layer, 2-3 all over；
6, intermediate coat sprays: spraying intermediate primer layers, spraying epoxy-mica iron oxide and epoxy nano coating, and first pass is sky
Gas blowout applies, and after 1 hour, two layers of roller coating again stands 2 hours or so；
7, protective film layer: protective layer is the mixture of UV glue, silicone resin, epoxy resin, is spaced between two layers, two layers of spraying
2 hours or so.
Wherein, the steel construction of unified specification can be put into polishing orbit by the surface cleaning, automatic by the grinding wheel at four sides
Polishing is not suitable for and the steel construction after assembling certainly just for components.Certain ratio is added in abrasive material in the derusting by sandblasting
The cement pulvis of example is prevented the flowing of metal surface electronics using the passivation of cement pulvis, achievees the purpose that antirust.It is described
Anti-corrosion film layer is aerial spraying or brushing, two layers totally anti-corrosion film layer, and spacing 3 hours or so between two layers of coatings, first layer is compared with the
Two layers thin, two layers of overall thickness controls within 30 μm.The first layer of the protective film layer uses roller coating form, and the second layer uses
Aerial spraying.
In addition, St3 described in the step 2: referring to processed rusty surface Ying Luxian metallic luster.
St2: refer to oxide skin, rust of the processed rusty surface without visible meeting Cen, moisture content, greasy dirt, dirty dirt and weathering
Layer and coat of paint.
Sky roller coating described in present embodiment is using the soft and smooth roller in surface in the roller coating of lacquer painting overhead, mainly detection paint
The flatness and density of layer.The organosilicon auxiliary agent, the effects of playing levelling, defoaming, pigment wetting, viscosity-adjusting agent.This field
Technical staff can according to require determine auxiliary agent type and dosage.Auxiliary agent of the present invention can have silicone oil, polyethers to change
Property organosilicon auxiliary agent, KH-550, KH-560 etc..Organic silicon modified by polyether auxiliary agent of the present invention is polyethers commonly used in the art
Modified organic silicon auxiliary agent can be the CoatOSil series polyether modified organic silicon auxiliary agent of Mai Tu new high-tech material Co., Ltd.
Embodiment
Embodiment one:
The components by weight percent of priming paint is 20 parts of silicone modified polyester resin, barium sulfate in basecoat paint described in the present embodiment
10 parts, 2 parts of modified phosphate aluminium, 3 parts of modified zinc phosphate, 0.2 part of defoaming agent, pigments and fillers wetting 0.2 part, 0.1 part of dispersing agent, hydrotropy
0.1 part of moisturizer, 0.1 part of organosilicon auxiliary agent.
The components by weight percent of the intermediate coat are as follows: 10 parts of epoxy-mica iron oxide, 5 parts of epoxy resin, 3 parts of nano zine oxide,
2 parts of nano silica, 3 parts of nano-titanium dioxide, 2 parts of nanometer titanium dioxide aluminium, 8 parts of solvent, 0.1 part of dispersing agent, defoaming agent 0.1
Part, 1 part of organosilicon auxiliary agent.
Embodiment two:
The components by weight percent of priming paint is 25 parts of silicone modified polyester resin, barium sulfate in basecoat paint described in the present embodiment
12 parts, 4 parts of modified phosphate aluminium, 3.5 parts of modified zinc phosphate, 0.35 part of defoaming agent, pigments and fillers soak 0.25 part, 0.2 part of dispersing agent,
0.12 part of hydrotropy moisturizer, 0.15 part of organosilicon auxiliary agent.
The components by weight percent of the intermediate coat are as follows: 15 parts of epoxy-mica iron oxide, 7 parts of epoxy resin, 6 parts of nano zine oxide,
5 parts of nano silica, 5 parts of nano-titanium dioxide, 3 parts of nanometer titanium dioxide aluminium, 9 parts of solvent, 0.2 part of dispersing agent, defoaming agent 0.2
Part, 1.2 parts of organosilicon auxiliary agent.
Embodiment three:
The components by weight percent of priming paint is 30 parts of silicone modified polyester resin, barium sulfate in basecoat paint described in the present embodiment
15 parts, 5 parts of modified phosphate aluminium, 4 parts of modified zinc phosphate, 0.5 part of defoaming agent, pigments and fillers wetting 0.3 part, 0.3 part of dispersing agent, hydrotropy
0.15 part of moisturizer, 0.2 part of organosilicon auxiliary agent.
The components by weight percent of the intermediate coat are as follows: 20 parts of epoxy-mica iron oxide, 10 parts of epoxy resin, 8 parts of nano zine oxide,
7 parts of nano silica, 6 parts of nano-titanium dioxide, 4 parts of nanometer titanium dioxide aluminium, 10 parts of solvent, 0.3 part of dispersing agent, defoaming agent
0.3 part, 1.5 parts of organosilicon auxiliary agent.
The present invention uses multilayer spraying operation, can effectively improve the quality of anti-corrosion lacquer painting, use in priming paint organic-silicon-modified
Polyester resin, barium sulfate, modified phosphate aluminium, modified zinc phosphate can preferably improve the airtightness and anti-corrosive properties of lacquer painting, and in this way
Combination be convenient for coating, uniformity is high；Protective film layer is increased between priming paint and intermediate coat, and is improved by way of empty roller coating
The quality of lacquer painting；Epoxy resin, nano zine oxide, nano silica, nano-titanium dioxide, nanometer titanium dioxide in intermediate coat
Aluminium improves the antiseptic property of lacquer painting and has stronger wearability, inoxidizability etc. and is a variety of excellent using newest nanotechnology
Matter characteristic finally sprays polytetrafluoroethylene (PTFE) heat insulating and corrosion film.
After adopting the above structure, steel structure anti-corrosion paint construction technology of the present invention, has the advantages that
1, reasonable design, easy operation, stability are high；
2, the antiseptic property and wearability of steel construction are improved, and there is preferable inoxidizability, the density of lacquer painting itself
It is more close；
3, the service life of lacquer painting can be extended using nanotechnology, waterproof performance is good, and the lacquer painting that stage construction combines can be with
Resist more rugged environment, the application range of widened steel construction.
4, MULTILAYER COMPOSITE technology, bottom is good with matrix adhesive property, avoids the cracking phenomena of Laser Strengthening Layer and base；
5, middle layer is transition zone, and surface layer has better wear-resisting property, its corrosion-inhibiting coating of better antiseptic property and steel knot
The binding force of structure matrix is strong, averagely reaches 15.0-20Mpa, and surface hardness reaches HV410 or more, is much higher than national standard；
6, it can achieve the purpose that long-effective corrosion and improve the appearance of structure, service life was up to 80 years or more.
The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (7)
1. steel structure anti-corrosion paint construction technology, it is characterised in that: the steel structure anti-corrosion paint construction technology includes following step
It is rapid:
(1), surface cleaning: the attached impurity on steel construction piece surface is cleaned out by air gun, and is beaten by coarse sandpaper
Grind off the apparent foreign matter in surface；
(2), derusting by sandblasting: metal expression face reaches " steel surface rusting grade and derusting grade before coating " GB/ after derusting
St3 standard specified in T8923-88；The dorsal horn being not easily cleaned should also reach St2 standard.
(3), basecoat paint: the mixture of 2-3 hours sprayings silicone modified polyester resins and barium sulfate, priming paint after derusting by sandblasting
Thickness be maintained at 60-90 μm；
(4), anti-corrosion film layer: in the case where priming paint is half-dried, polytetrafluoroethylene (PTFE) heat insulating and corrosion film is sprayed, thicknesses of layers control exists
20-30μm；
(5), empty roller coating: after or so half an hour, by roller in the overhead roller coating of anti-corrosion film layer, 2-3 all over；
(6), intermediate coat sprays: spraying intermediate primer layers, spraying epoxy-mica iron oxide and epoxy nano coating, first pass is air
Spraying, after 1 hour, two layers of roller coating again stands 2 hours or so；
(7), protective film layer: protective layer is the mixture of UV glue, silicone resin, epoxy resin, is spaced 2 between two layers, two layers of spraying
Hour or so.
2. steel structure anti-corrosion paint construction technology according to claim 1, it is characterised in that: the surface cleaning can will unite
The steel construction of one specification is put into polishing orbit, by the grinding wheel automatically grinding at four sides, certainly just for components, not applicable and group
Steel construction after dress.
3. steel structure anti-corrosion paint construction technology according to claim 1, it is characterised in that: the mill in the derusting by sandblasting
A certain proportion of cement pulvis is added in material, the flowing of metal surface electronics is prevented using the passivation of cement pulvis, is reached
The purpose of antirust.
4. steel structure anti-corrosion paint construction technology according to claim 1, it is characterised in that: priming paint in the basecoat paint
Components by weight percent be silicone modified polyester resin 20-30 parts, 10-15 parts of barium sulfate, 2-5 parts of modified phosphate aluminium, modified phosphate
3-4 parts of zinc, 0.2-0.5 parts of defoaming agent, pigments and fillers soak 0.2-0.3 parts, 0.1-0.3 parts of dispersing agent, hydrotropy moisturizer 0.1-
0.15 part, 0.1-0.2 parts of organosilicon auxiliary agent.
5. steel structure anti-corrosion paint construction technology according to claim 1, it is characterised in that: the anti-corrosion film layer is air
Spraying is brushed, two layers anti-corrosion film layer totally, and spacing 3 hours or so between two layers of coatings, first layer is thin compared with the second layer, two layers total
Thickness control is within 30 μm.
6. steel structure anti-corrosion paint construction technology according to claim 1, it is characterised in that: the weight group of the intermediate coat
Be divided into: 10-20 parts of epoxy-mica iron oxide, 5-10 parts of epoxy resin, 3-8 parts of nano zine oxide, 2-7 parts of nano silica,
3-6 parts of nano-titanium dioxide, 2-4 parts of nanometer titanium dioxide aluminium, 8-10 parts of solvent, 0.1-0.3 parts of dispersing agent, defoaming agent 0.1-0.3
Part, 1-1.5 parts of organosilicon auxiliary agent.
7. steel structure anti-corrosion paint construction technology according to claim 1, it is characterised in that: the first of the protective film layer
Layer uses roller coating form, and the second layer uses aerial spraying.
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| CN201811266673.6A CN109396002A (en) | 2018-10-29 | 2018-10-29 | Steel structure anti-corrosion paint construction technology |
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| CN201811266673.6A CN109396002A (en) | 2018-10-29 | 2018-10-29 | Steel structure anti-corrosion paint construction technology |
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| CN110344639A (en) * | 2019-07-11 | 2019-10-18 | 湖北联网电力设计有限公司 | A kind of power transmission line tower bar guard member |
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| CN114473795A (en) * | 2022-02-16 | 2022-05-13 | 浙江新鑫钢结构有限公司 | Anticorrosion and wear-resistant treatment system based on building steel member and technology thereof |
| CN114986093A (en) * | 2022-05-27 | 2022-09-02 | 绍兴禹馨装饰有限公司 | Production process of seamless screen window aluminum alloy frame |
| CN115445882A (en) * | 2022-09-29 | 2022-12-09 | 武汉东臻科技有限公司 | Desulfurization tower lining anticorrosive material and construction method for performing lining anticorrosion by using same |
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