CN117563922A - Corrosion-resistant and wear-resistant construction process for steel platform and steel ladder of raw foil storage tank region - Google Patents

Corrosion-resistant and wear-resistant construction process for steel platform and steel ladder of raw foil storage tank region Download PDF

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Publication number
CN117563922A
CN117563922A CN202311455725.5A CN202311455725A CN117563922A CN 117563922 A CN117563922 A CN 117563922A CN 202311455725 A CN202311455725 A CN 202311455725A CN 117563922 A CN117563922 A CN 117563922A
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Prior art keywords
steel
corrosion
primer
paint
steel platform
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CN202311455725.5A
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Inventor
宋书波
王爱雷
夏明杰
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Nanjing Longxin Electronic Technology Co ltd
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Nanjing Longxin Electronic Technology Co ltd
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Priority to CN202311455725.5A priority Critical patent/CN117563922A/en
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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
    • 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
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • 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
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with 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
    • 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
    • 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
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
    • 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
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated 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
    • 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
    • C09D5/10—Anti-corrosive paints containing metal dust
    • C09D5/106—Anti-corrosive paints containing metal dust containing Zn
    • 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
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • 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
    • B05D2503/00—Polyurethanes
    • 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
    • B05D2508/00—Polyesters
    • 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
    • B05D2601/00—Inorganic fillers
    • B05D2601/20—Inorganic fillers used for non-pigmentation effect
    • 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
    • B05D2601/00—Inorganic fillers
    • B05D2601/20—Inorganic fillers used for non-pigmentation effect
    • B05D2601/28—Metals
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0893—Zinc
    • 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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  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention relates to the technical field of corrosion and wear resistant processes, in particular to a corrosion and wear resistant construction process for a steel platform and a steel ladder of a raw foil storage tank, which comprises the following steps: step one, carrying out surface pretreatment on a steel platform and a steel ladder; step two, preparing primer and surface paint; and thirdly, uniformly rolling the primer on the outer surfaces of the steel platform and the steel ladder, and standing and drying in the shade for 8-9 hours at the temperature of 20-30 ℃ to ensure that the primer is completely adhered on the outer surfaces of the steel platform and the steel ladder. The aliphatic acrylic polyurethane finish paint has excellent weather resistance, light retention, color retention, excellent chemical resistance and salt spray resistance, tough paint film, excellent impact resistance and wear resistance, excellent decorative performance, and can well meet the use requirements of steel platforms and steel ladders in raw foil storage tank areas, so that the light steel structure has excellent corrosion and wear resistance, and corrosion prevention paint is prevented from being abraded in the long-time use process, and further the steel platforms and the steel ladders are corroded.

Description

Corrosion-resistant and wear-resistant construction process for steel platform and steel ladder of raw foil storage tank region
Technical Field
The invention relates to the technical field of corrosion and wear resistant processes, in particular to a corrosion and wear resistant construction process for a steel platform and a steel ladder of a raw foil storage tank.
Background
At present, a large amount of acid mist exists in the environments of a copper dissolving area and a raw foil storage tank area of a production workshop in the electrolytic copper foil industry, the condition of liquid leakage exists in the production process, a large amount of corrosive chemical substances exist in the liquid, and various light steel structures are easy to corrode in the condition for a long time. The general light steel structure only needs the anti-corrosion performance, but the steel platform and the steel ladder not only need the anti-corrosion performance, but also need the wear resistance, and the anti-corrosion paint is prevented from being abraded in the long-time use process, so that the steel platform and the steel ladder are corroded.
Disclosure of Invention
The invention aims to provide a corrosion and wear resistant construction process for a steel platform and a steel ladder of a raw foil storage tank zone, which aims to solve the problems in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: a corrosion and wear resistant construction process for a steel platform and a steel ladder of a raw foil storage tank region comprises the following steps:
step one, carrying out surface pretreatment on a steel platform and a steel ladder;
step two, preparing primer and surface paint;
step three, uniformly rolling the primer on the outer surfaces of the steel platform and the steel ladder, and standing and drying in the shade for 8-9 hours at the temperature of 20-30 ℃ to ensure that the primer is completely adhered on the outer surfaces of the steel platform and the steel ladder;
uniformly rolling the surface paint on the outer surface of the primer, and drying in the shade at 20-30 ℃ for 8-9 hours to ensure that the surface paint is completely adhered on the outer surface of the primer;
and fifthly, uniformly rolling the surface paint on the surface paint attached to the outer surface of the primer, and drying in the shade at 20-30 ℃ for 8-9 hours to ensure that the surface paint on two sides is completely attached together, thereby completing the construction of the corrosion and abrasion resistant work of the steel platform and the steel ladder.
Preferably, the primer is an epoxy zinc-rich primer, and the topcoat is an aliphatic acrylic polyurethane finish.
Preferably, the thickness of the two layers of surface layer paint is 60-80um, and the thickness of the primer is 60-80um.
Preferably, the preparation method of the primer comprises the following steps:
step one, preparing aqueous epoxy resin, a defoaming agent, an anti-corrosion mixed slurry, an aqueous epoxy curing agent, deionized water and a substrate wetting agent according to a proportion.
And step two, adding the aqueous epoxy resin, the defoaming agent, the anti-corrosion mixed slurry, the aqueous epoxy curing agent, the deionized water and the substrate wetting agent into the inner cavity of the reaction kettle in proportion, and fully stirring the mixture for 20-30 minutes in the inner cavity of the reaction kettle at the temperature of 20-30 ℃ to prepare the primer.
Preferably, the defoamer is an aqueous polysiloxane defoamer, and the antiseptic mixed slurry comprises the following components: the preparation process of the anticorrosion mixed slurry comprises the following steps of: step one, dissolving zinc powder, organic bentonite, diatomite, aluminum silicate fibers and an aqueous coupling agent in deionized water according to a proportion, uniformly stirring to obtain a liquid mixture, dripping the aqueous coupling agent into the liquid mixture in the step one, and carrying out high-speed stirring to obtain the anti-corrosion mixed slurry.
Preferably, the preparation process of the surface paint comprises the following steps:
preparing raw materials, namely preparing a plurality of raw materials according to a certain proportion according to the formula requirement, and uniformly stirring to obtain a mixture A, wherein the plurality of raw materials comprise resin, solvent, filler, auxiliary agent and the like;
step two, resin synthesis, namely putting the mixture A into the inner cavity of a reaction kettle to perform corresponding synthesis reaction according to the type of the selected resin, so as to prepare resin meeting the requirements;
step three, mixing, namely adding the prepared raw materials into a reaction kettle one by one, and stirring and mixing the raw materials to uniformly disperse the components;
and fourthly, adjusting the viscosity, and adding a diluent or a thickener into the inner cavity of the reaction kettle according to the requirement to adjust the viscosity of the coating so as to adapt to different construction requirements.
Preferably, the solvent comprises acetone, toluene, alcohols and the like, the solvent is one of main components in the aliphatic polyurethane finish paint, the solvent plays roles of dissolving and diluting other components, and the drying time, leveling property and the like of the coating film can be influenced by different solvent selections;
the resin comprises polyester type, polyether type and the like, is a key component in the aliphatic polyurethane finish paint, determines the performances of the coating film such as hardness, wear resistance, chemical resistance and the like, and is selected according to specific application scenes and requirements;
the filler comprises aluminum oxide and calcium silicate, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the performance of a coating film, and is selected by considering the requirements of the hardness, the glossiness and the like of the coating film;
the auxiliary agent comprises an antioxidant and a thickener, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the characteristics and the processing performance of a coating film, and is selected according to specific requirements.
Preferably, the surface layer pretreatment process comprises the following steps:
firstly, preparing work, namely ensuring that a working area is clean and tidy before polishing a steel platform and a steel ladder so as not to influence polishing effect, preparing required polishing tools and materials, such as a polisher, a polishing sheet, sand paper, polishing paste and the like, ensuring personal safety, and wearing protective glasses, gloves, masks and the like;
step two, removing welding slag and oxides attached to the steel platform and the steel ladder, and using a grinding machine to be matched with sand paper or grinding sheets to remove the surfaces of the welding slag and the oxides, wherein the welding slag and the oxides are uniformly ground so as to avoid the uneven condition;
step three, rough grinding is used for removing roughness and scratches on the surface, sand paper or a grinding machine can be selected for rough grinding, proper grinding granularity is selected according to the requirement, and uniform strength and speed are kept in the grinding process, so that excessive grinding or uneven grinding is avoided;
step four, a middle mill is used for further flattening the surface and removing traces left during rough grinding, and during middle grinding, a grinding machine can be used for matching with a grinding sheet or polishing paste, and similar to the step three, uniform strength and speed are kept, and excessive grinding is not needed to be paid attention to;
and fifthly, cleaning, namely blowing the polished steel platform and the steel ladder by using a fan, so as to avoid the phenomenon that scraps in the polishing process are attached to the steel platform and the steel ladder to influence the rolling coating effect of the primer.
Compared with the prior art, the invention has the beneficial effects that:
the construction process has the advantages of excellent weather resistance, light preservation, color preservation, excellent chemical resistance and salt spray resistance, tough paint film, excellent impact resistance and wear resistance, excellent decorative performance, and the aliphatic acrylic polyurethane finish paint has the above excellent performance, can well meet the use requirements of a steel platform and a steel ladder in a raw foil storage tank area, ensures that a light steel structure has excellent corrosion and wear resistance, and prevents corrosion-resistant paint from being abraded in a long-time use process, thereby corroding the steel platform and the steel ladder.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Example 1
A corrosion and wear resistant construction process for a steel platform and a steel ladder of a raw foil storage tank region comprises the following steps:
step one, carrying out surface pretreatment on a steel platform and a steel ladder;
step two, preparing primer and surface paint;
step three, uniformly rolling the primer on the outer surfaces of the steel platform and the steel ladder, and standing and drying in the shade for 8 hours at the temperature of 20 ℃ to ensure that the primer is completely adhered to the outer surfaces of the steel platform and the steel ladder;
uniformly rolling the surface paint on the outer surface of the primer, and drying in the shade at 20 ℃ for 8 hours to ensure that the surface paint is completely adhered on the outer surface of the primer;
step five, uniformly rolling coating the surface paint on the surface paint attached to the outer surface of the primer, drying in the shade for 8 hours at the temperature of 20 ℃ to ensure that the surface paint on two sides is completely attached together, completing the corrosion and abrasion resistant construction of a steel platform and a steel ladder, and adopting a rolling coating mode to construct because of more pipelines and equipment around a raw foil storage tank area so as to protect the pipelines and the equipment from being polluted, wherein the surface of the epoxy zinc-rich primer is ensured to be dry, free of foreign matters such as greasy dirt, dust and the like before the construction, and the theoretical coating rate is as follows: under the condition of 120um dry film thickness, the number of construction brushing times is not less than two, the environment temperature during construction is not lower than 4 ℃, the finish paint can be put into use after the finish paint is finished and is naturally cured for 7 days, if the environment temperature is lower than 10 ℃, the construction precautions should be properly prolonged: the environment temperature is lower than 4 ℃, and the air humidity is higher than 75%, construction is avoided in rainy and snowy days, construction in rainy and snowy conditions possibly exists in the coating or drying process is expected, contact with water, acid, alkali, alcohol and the like is forbidden in the paint preparation and coating processes, open fire is prevented in a construction site, and ventilation is enhanced.
In the embodiment, the primer is an epoxy zinc-rich primer, the surface paint is an aliphatic acrylic polyurethane finish paint, the epoxy zinc-rich primer is a special paint which is mainly prepared from epoxy resin and zinc powder, a thickener, a filler, an auxiliary agent, a solvent and the like, is mainly used for steel pipes, storage tanks, steel structures, containers and the like, has excellent corrosion resistance, strong adhesion, high zinc powder content in a paint film, cathode protection and water resistance, has excellent corrosion resistance, good mechanical property and strong adhesion, has conductivity and cathode protection, forms a film of more than 75um, can be used as a shop precoating primer, welds thick films at 15um without influencing welding performance, can be used as an antirust primer for various pipes and gas cabinets, has good ventilation facilities in construction sites, the paint worker wears glasses, gloves, masks and the like, avoids skin contact and inhalation of paint mist, strictly forbids smoke on a construction site, is a double-component acrylic polyurethane paint, has good decoration property and excellent weather resistance, is superior to common aromatic polyurethane, rubber and ethylene paint, can be used for coating steel structures and repairing and maintaining original base materials, is suitable for various environments, comprises offshore facilities, chemical industry and petrochemical factories, bridges, pulp factories, paper factories, power plants and the like, has good weather resistance, hard paint film, good adhesive force, bright and plump paint film, has better performances of wear resistance, acid, water, oil, heat and the like, takes aliphatic isocyanate and hydroxyl-containing acrylic resin as base materials, and is matched with weather resistant pigment, auxiliary agent and the like to form the double-component high-performance anti-corrosion paint, and has the main performances that: (1) excellent weather resistance, light retention, color retention; (2) excellent chemical resistance and salt spray resistance; (3) tough paint films, good impact and abrasion resistance; (4) excellent decorative properties.
In this embodiment, the thickness of the two layers of the surface layer paint is 60um, and the thickness of the primer is 60um.
In this embodiment, the preparation method of the primer includes:
step one, preparing aqueous epoxy resin, a defoaming agent, an anti-corrosion mixed slurry, an aqueous epoxy curing agent, deionized water and a substrate wetting agent according to a proportion.
And step two, adding the aqueous epoxy resin, the defoaming agent, the anti-corrosion mixed slurry, the aqueous epoxy curing agent, the deionized water and the substrate wetting agent into the inner cavity of the reaction kettle in proportion, and fully stirring the mixture in the inner cavity of the reaction kettle at the temperature of 20-30 ℃ for 20 minutes to prepare the primer.
In this embodiment, the defoamer is an aqueous polysiloxane defoamer, and the antiseptic mixed slurry comprises the following components: the preparation process of the anticorrosion mixed slurry comprises the following steps of: step one, dissolving zinc powder, organic bentonite, diatomite, aluminum silicate fibers and an aqueous coupling agent in deionized water according to a proportion, uniformly stirring to obtain a liquid mixture, dripping the aqueous coupling agent into the liquid mixture in the step one, and carrying out high-speed stirring to obtain the anti-corrosion mixed slurry.
In this embodiment, the preparation process of the topcoat paint includes:
preparing raw materials, namely preparing a plurality of raw materials according to a certain proportion according to the formula requirement, and uniformly stirring to obtain a mixture A, wherein the plurality of raw materials comprise resin, solvent, filler, auxiliary agent and the like;
step two, resin synthesis, namely putting the mixture A into the inner cavity of a reaction kettle to perform corresponding synthesis reaction according to the type of the selected resin, so as to prepare resin meeting the requirements;
step three, mixing, namely adding the prepared raw materials into a reaction kettle one by one, and stirring and mixing the raw materials to uniformly disperse the components;
and fourthly, adjusting the viscosity, and adding a diluent or a thickener into the inner cavity of the reaction kettle according to the requirement to adjust the viscosity of the coating so as to adapt to different construction requirements.
In this embodiment, the solvent includes acetone, toluene, alcohols, etc., and the solvent is one of the main components in the aliphatic polyurethane finish paint, and plays a role in dissolving and diluting other components, and different solvent choices can affect the drying time, leveling property, etc. of the coating film;
the resin comprises polyester type, polyether type and the like, is a key component in the aliphatic polyurethane finish paint, determines the performances of the coating film such as hardness, wear resistance, chemical resistance and the like, and is selected according to specific application scenes and requirements;
the filler comprises aluminum oxide and calcium silicate, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the performance of a coating film, and is selected by considering the requirements of the hardness, the glossiness and the like of the coating film;
the auxiliary agent comprises an antioxidant and a thickener, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the characteristics and the processing performance of a coating film, and is selected according to specific requirements.
In this embodiment, the surface layer pretreatment process includes:
firstly, preparing work, namely ensuring that a working area is clean and tidy before polishing a steel platform and a steel ladder so as not to influence polishing effect, preparing required polishing tools and materials, such as a polisher, a polishing sheet, sand paper, polishing paste and the like, ensuring personal safety, and wearing protective glasses, gloves, masks and the like;
step two, removing welding slag and oxides attached to the steel platform and the steel ladder, and using a grinding machine to be matched with sand paper or grinding sheets to remove the surfaces of the welding slag and the oxides, wherein the welding slag and the oxides are uniformly ground so as to avoid the uneven condition;
step three, rough grinding is used for removing roughness and scratches on the surface, sand paper or a grinding machine can be selected for rough grinding, proper grinding granularity is selected according to the requirement, and uniform strength and speed are kept in the grinding process, so that excessive grinding or uneven grinding is avoided;
step four, a middle mill is used for further flattening the surface and removing traces left during rough grinding, and during middle grinding, a grinding machine can be used for matching with a grinding sheet or polishing paste, and similar to the step three, uniform strength and speed are kept, and excessive grinding is not needed to be paid attention to;
and fifthly, cleaning, namely blowing the polished steel platform and the steel ladder by using a fan, so as to avoid the phenomenon that scraps in the polishing process are attached to the steel platform and the steel ladder to influence the rolling coating effect of the primer.
Example two
Example 1
A corrosion and wear resistant construction process for a steel platform and a steel ladder of a raw foil storage tank region comprises the following steps:
step one, carrying out surface pretreatment on a steel platform and a steel ladder;
step two, preparing primer and surface paint;
step three, uniformly rolling the primer on the outer surfaces of the steel platform and the steel ladder, and standing and drying in the shade for 9 hours at the temperature of 30 ℃ to ensure that the primer is completely adhered to the outer surfaces of the steel platform and the steel ladder;
uniformly rolling the surface paint on the outer surface of the primer, and drying in the shade at 30 ℃ for 9 hours to ensure that the surface paint is completely adhered on the outer surface of the primer;
step five, uniformly rolling coating surface paint on the surface paint adhered to the surface of the primer, and drying in the shade for 9 hours at the temperature of 30 ℃ to ensure that the surface paint on two sides is completely adhered together, thus completing the corrosion and abrasion resistant construction of a steel platform and a steel ladder, and ensuring the surface drying, no greasy dirt, dust and other foreign matters of the epoxy zinc-rich primer before the construction by adopting a rolling coating mode because of more pipelines and equipment around a raw foil storage tank area, and ensuring the theoretical coating rate: under the condition of 120um dry film thickness, the number of construction brushing times is not less than two, the environment temperature during construction is not lower than 4 ℃, the finish paint can be put into use after the finish paint is finished and is naturally cured for 7 days, if the environment temperature is lower than 10 ℃, the construction precautions should be properly prolonged: the environment temperature is lower than 4 ℃, and the air humidity is higher than 75%, construction is avoided in rainy and snowy days, construction in rainy and snowy conditions possibly exists in the coating or drying process is expected, contact with water, acid, alkali, alcohol and the like is forbidden in the paint preparation and coating processes, open fire is prevented in a construction site, and ventilation is enhanced.
In this embodiment, the primer is an epoxy zinc-rich primer, the top coat is an aliphatic acrylic polyurethane top coat, the epoxy zinc-rich primer is a special paint composed of epoxy resin and zinc powder as main raw materials, a thickener, a filler, an auxiliary agent, a solvent and the like, and is mainly used for steel pipes, storage tanks, steel structures, containers and the like, and has excellent corrosion resistance, strong adhesion, high zinc powder content in paint films, a cathodic protection effect, excellent water resistance, excellent corrosion resistance, good mechanical properties, strong adhesion, conductivity and cathodic protection effect, one film forming above 75um, and can be used as a shop precoating primer, thick films of which are welded at 15-25um, do not affect welding performance, the product can also be used as an anti-rust primer of various pipes and gas cabinets, good ventilation facilities are required in application sites, the paint works can wear glasses, gloves, masks and the like, the skin contact and the inhalation paint mist are avoided, the construction site pyrotechnical fireworks, the aliphatic acrylic polyurethane is a two-component acrylic paint, the decorative polyurethane is superior to the common aromatic polyurethane, the ethylene polyurethane, the epoxy polyurethane paint can be used for the bridge paint, the bridge, the adhesive, the paint has the water resistance, the adhesive force of the paint film is good, the paint film has the weather resistance better than the paint film, the paint film is suitable for the paint film of the bridge, the environmental protection, the thermal protection, the bridge, the paint has the weather resistance, the environmental protection, the paint, and the weather resistance, and the paint protection, and the weather resistance better: (1) excellent weather resistance, light retention, color retention; (2) excellent chemical resistance and salt spray resistance; (3) tough paint films, good impact and abrasion resistance; (4) excellent decorative properties.
In this embodiment, the thickness of the two layers of the surface layer paint is 80um, and the thickness of the primer is 80um.
In this embodiment, the preparation method of the primer includes:
step one, preparing aqueous epoxy resin, a defoaming agent, an anti-corrosion mixed slurry, an aqueous epoxy curing agent, deionized water and a substrate wetting agent according to a proportion.
And step two, adding the aqueous epoxy resin, the defoaming agent, the anti-corrosion mixed slurry, the aqueous epoxy curing agent, the deionized water and the substrate wetting agent into the inner cavity of the reaction kettle in proportion, and fully stirring the mixture in the inner cavity of the reaction kettle at the temperature of 30 ℃ for 30 minutes to prepare the primer.
In this embodiment, the defoamer is an aqueous polysiloxane defoamer, and the antiseptic mixed slurry comprises the following components: the preparation process of the anticorrosion mixed slurry comprises the following steps of: step one, dissolving zinc powder, organic bentonite, diatomite, aluminum silicate fibers and an aqueous coupling agent in deionized water according to a proportion, uniformly stirring to obtain a liquid mixture, dripping the aqueous coupling agent into the liquid mixture in the step one, and carrying out high-speed stirring to obtain the anti-corrosion mixed slurry.
In this embodiment, the preparation process of the topcoat paint includes:
preparing raw materials, namely preparing a plurality of raw materials according to a certain proportion according to the formula requirement, and uniformly stirring to obtain a mixture A, wherein the plurality of raw materials comprise resin, solvent, filler, auxiliary agent and the like;
step two, resin synthesis, namely putting the mixture A into the inner cavity of a reaction kettle to perform corresponding synthesis reaction according to the type of the selected resin, so as to prepare resin meeting the requirements;
step three, mixing, namely adding the prepared raw materials into a reaction kettle one by one, and stirring and mixing the raw materials to uniformly disperse the components;
and fourthly, adjusting the viscosity, and adding a diluent or a thickener into the inner cavity of the reaction kettle according to the requirement to adjust the viscosity of the coating so as to adapt to different construction requirements.
In this embodiment, the solvent includes acetone, toluene, alcohols, etc., and the solvent is one of the main components in the aliphatic polyurethane finish paint, and plays a role in dissolving and diluting other components, and different solvent choices can affect the drying time, leveling property, etc. of the coating film;
the resin comprises polyester type, polyether type and the like, is a key component in the aliphatic polyurethane finish paint, determines the performances of the coating film such as hardness, wear resistance, chemical resistance and the like, and is selected according to specific application scenes and requirements;
the filler comprises aluminum oxide and calcium silicate, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the performance of a coating film, and is selected by considering the requirements of the hardness, the glossiness and the like of the coating film;
the auxiliary agent comprises an antioxidant and a thickener, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the characteristics and the processing performance of a coating film, and is selected according to specific requirements.
In this embodiment, the surface layer pretreatment process includes:
firstly, preparing work, namely ensuring that a working area is clean and tidy before polishing a steel platform and a steel ladder so as not to influence polishing effect, preparing required polishing tools and materials, such as a polisher, a polishing sheet, sand paper, polishing paste and the like, ensuring personal safety, and wearing protective glasses, gloves, masks and the like;
step two, removing welding slag and oxides attached to the steel platform and the steel ladder, and using a grinding machine to be matched with sand paper or grinding sheets to remove the surfaces of the welding slag and the oxides, wherein the welding slag and the oxides are uniformly ground so as to avoid the uneven condition;
step three, rough grinding is used for removing roughness and scratches on the surface, sand paper or a grinding machine can be selected for rough grinding, proper grinding granularity is selected according to the requirement, and uniform strength and speed are kept in the grinding process, so that excessive grinding or uneven grinding is avoided;
step four, a middle mill is used for further flattening the surface and removing traces left during rough grinding, and during middle grinding, a grinding machine can be used for matching with a grinding sheet or polishing paste, and similar to the step three, uniform strength and speed are kept, and excessive grinding is not needed to be paid attention to;
and fifthly, cleaning, namely blowing the polished steel platform and the steel ladder by using a fan, so as to avoid the phenomenon that scraps in the polishing process are attached to the steel platform and the steel ladder to influence the rolling coating effect of the primer.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The corrosion and wear resistant construction process for the steel platform and the steel ladder of the green foil storage tank area is characterized by comprising the following steps:
step one, carrying out surface pretreatment on a steel platform and a steel ladder;
step two, preparing primer and surface paint;
step three, uniformly rolling the primer on the outer surfaces of the steel platform and the steel ladder, and standing and drying in the shade for 8-9 hours at the temperature of 20-30 ℃ to ensure that the primer is completely adhered on the outer surfaces of the steel platform and the steel ladder;
uniformly rolling the surface paint on the outer surface of the primer, and drying in the shade at 20-30 ℃ for 8-9 hours to ensure that the surface paint is completely adhered on the outer surface of the primer;
and fifthly, uniformly rolling the surface paint on the surface paint attached to the outer surface of the primer, and drying in the shade at 20-30 ℃ for 8-9 hours to ensure that the surface paint on two sides is completely attached together, thereby completing the construction of the corrosion and abrasion resistant work of the steel platform and the steel ladder.
2. The corrosion and wear resistant construction process for a steel platform and a steel ladder of a green foil storage tank area according to claim 1, which is characterized in that: the primer is an epoxy zinc-rich primer, and the finish is an aliphatic acrylic polyurethane finish.
3. The corrosion and wear resistant construction process for a steel platform and a steel ladder of a green foil storage tank area according to claim 1, which is characterized in that: the thickness of the two layers of surface layer paint is 60-80um, and the thickness of the primer is 60-80um.
4. The corrosion and wear resistant construction process for the steel platform and the steel ladder of the green foil storage tank area according to claim 2, which is characterized in that: the preparation method of the primer comprises the following steps:
step one, preparing aqueous epoxy resin, a defoaming agent, an anti-corrosion mixed slurry, an aqueous epoxy curing agent, deionized water and a substrate wetting agent according to a proportion.
And step two, adding the aqueous epoxy resin, the defoaming agent, the anti-corrosion mixed slurry, the aqueous epoxy curing agent, the deionized water and the substrate wetting agent into the inner cavity of the reaction kettle in proportion, and fully stirring the mixture for 20-30 minutes in the inner cavity of the reaction kettle at the temperature of 20-30 ℃ to prepare the primer.
5. The corrosion and wear resistant construction process for the steel platform and the steel ladder of the green foil storage tank area, which is characterized in that: the defoaming agent is an aqueous polysiloxane defoaming agent, and the anti-corrosion mixed slurry comprises the following components: the preparation process of the anticorrosion mixed slurry comprises the following steps of: step one, dissolving zinc powder, organic bentonite, diatomite, aluminum silicate fibers and an aqueous coupling agent in deionized water according to a proportion, uniformly stirring to obtain a liquid mixture, dripping the aqueous coupling agent into the liquid mixture in the step one, and carrying out high-speed stirring to obtain the anti-corrosion mixed slurry.
6. The corrosion and wear resistant construction process for the steel platform and the steel ladder of the green foil storage tank area, which is characterized in that: the preparation process of the surface paint comprises the following steps:
preparing raw materials, namely preparing a plurality of raw materials according to a certain proportion according to the formula requirement, and uniformly stirring to obtain a mixture A, wherein the plurality of raw materials comprise resin, solvent, filler, auxiliary agent and the like;
step two, resin synthesis, namely putting the mixture A into the inner cavity of a reaction kettle to perform corresponding synthesis reaction according to the type of the selected resin, so as to prepare resin meeting the requirements;
step three, mixing, namely adding the prepared raw materials into a reaction kettle one by one, and stirring and mixing the raw materials to uniformly disperse the components;
and fourthly, adjusting the viscosity, and adding a diluent or a thickener into the inner cavity of the reaction kettle according to the requirement to adjust the viscosity of the coating so as to adapt to different construction requirements.
7. The corrosion and wear resistant construction process for the steel platform and the steel ladder of the green foil storage tank area according to claim 2, which is characterized in that: the solvent comprises acetone, toluene, alcohols and the like, is one of the main components in the aliphatic polyurethane finish paint, and plays a role in dissolving and diluting other components, and the different solvents can influence the drying time, leveling property and other performances of the coating film;
the resin comprises polyester type, polyether type and the like, is a key component in the aliphatic polyurethane finish paint, determines the performances of the coating film such as hardness, wear resistance, chemical resistance and the like, and is selected according to specific application scenes and requirements;
the filler comprises aluminum oxide and calcium silicate, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the performance of a coating film, and is selected by considering the requirements of the hardness, the glossiness and the like of the coating film;
the auxiliary agent comprises an antioxidant and a thickener, is an auxiliary component in the aliphatic polyurethane finish paint, can improve the characteristics and the processing performance of a coating film, and is selected according to specific requirements.
8. The corrosion and wear resistant construction process for the steel platform and the steel ladder of the green foil storage tank area, which is characterized in that: the surface layer pretreatment process comprises the following steps:
firstly, preparing work, namely ensuring that a working area is clean and tidy before polishing a steel platform and a steel ladder so as not to influence polishing effect, preparing required polishing tools and materials, such as a polisher, a polishing sheet, sand paper, polishing paste and the like, ensuring personal safety, and wearing protective glasses, gloves, masks and the like;
step two, removing welding slag and oxides attached to the steel platform and the steel ladder, and using a grinding machine to be matched with sand paper or grinding sheets to remove the surfaces of the welding slag and the oxides, wherein the welding slag and the oxides are uniformly ground so as to avoid the uneven condition;
step three, rough grinding is used for removing roughness and scratches on the surface, sand paper or a grinding machine can be selected for rough grinding, proper grinding granularity is selected according to the requirement, and uniform strength and speed are kept in the grinding process, so that excessive grinding or uneven grinding is avoided;
step four, a middle mill is used for further flattening the surface and removing traces left during rough grinding, and during middle grinding, a grinding machine can be used for matching with a grinding sheet or polishing paste, and similar to the step three, uniform strength and speed are kept, and excessive grinding is not needed to be paid attention to;
and fifthly, cleaning, namely blowing the polished steel platform and the steel ladder by using a fan, so as to avoid the phenomenon that scraps in the polishing process are attached to the steel platform and the steel ladder to influence the rolling coating effect of the primer.
CN202311455725.5A 2023-11-03 2023-11-03 Corrosion-resistant and wear-resistant construction process for steel platform and steel ladder of raw foil storage tank region Pending CN117563922A (en)

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Application Number Priority Date Filing Date Title
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