CN111197169A - Anti-corrosion machining process for steel structure - Google Patents
Anti-corrosion machining process for steel structure Download PDFInfo
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- CN111197169A CN111197169A CN201811387196.9A CN201811387196A CN111197169A CN 111197169 A CN111197169 A CN 111197169A CN 201811387196 A CN201811387196 A CN 201811387196A CN 111197169 A CN111197169 A CN 111197169A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
-
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/26—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/20—Other heavy metals
-
- 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
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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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an anti-corrosion processing technology of a steel structure, which comprises the following steps: base surface treatment, galvanization, sand sweeping, surface anticorrosion and spraying. The invention has the advantages that: the rust stain of the steel can be quickly removed by the construction method, and the steel has good impact resistance and corrosion resistance after being subjected to corrosion prevention treatment; the zinc coating and the epoxy anticorrosion nanometer dry film ensure the compactness, stability, weather resistance, acid and alkali resistance and comprehensive anticorrosion performance of the surface of the steel structure.
Description
Technical Field
The invention relates to the technical field of anticorrosion construction, in particular to an anticorrosion processing technology for a steel structure.
Background
Steel frame work is a structure mainly made of steel, and is one of the main building structure types in the modern. The global steel yield per year exceeds one hundred million tons, the steel equipment scrapped due to corrosion is about 30 percent of the annual yield per year, and how to improve the rust removal and corrosion prevention construction process of the steel framework becomes a problem to be solved urgently. The steel structure is exposed to the field environment, and the surface of the steel structure is easy to be corroded by chemical and electrochemical actions with the surrounding environment. Therefore, the steel frame construction is generally a large-scale permanent construction, has long service life and difficult maintenance, and must be effectively and long-term preserved to ensure the service life of the building
The existing rust removal methods mainly comprise a mechanical method and a chemical method. The mechanical method is implemented by manually shoveling, polishing and sand blasting, has high labor intensity and low efficiency, is limited by the shape of a component, and is difficult to remove part of rust. The chemical method is generally to coat the outer surface of the steel structure with oil, but aging phenomena can also occur.
The present invention has been advantageously explored and attempted for this purpose, and a solution to the above-mentioned problems has been found, which is the result of the solution described below.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an anti-corrosion processing technology for a steel structure aiming at the defects and shortcomings of the prior art.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
an anti-corrosion processing technology for a steel structure is characterized by comprising the following steps:
step 1, base surface treatment, namely polishing and chamfering all sharp edges and R holes of a steel structure, removing oxide skin, iron rust and other pollutants by using a rust remover, washing the surface by using water, drying, and performing shot blasting treatment by using 100% steel shot abrasive;
step 2, galvanizing, wherein the steel framework treated in the step 1 is firstly pickled and then dipped into a zinc bath for galvanizing, the pickling time is 30-50min, the volume of the zinc bath is not less than 160-;
step 3, sand sweeping is carried out, and non-metal grinding materials are adopted for sand sweeping;
step 4, surface corrosion prevention, namely coating a corrosion prevention layer on the surface of the steel structure;
step 5, spraying, namely spraying epoxy anticorrosive nano paint on the surface of the steel structure coated with the anticorrosive layer in the step 4 by adopting air;
in a preferred embodiment of the invention, step 1, rust inhibitors are prepared: adding 0.3-0.6 part of hexamethylenetetramine into 60-90 parts of water, stirring for 1.5-2h at the temperature of 55-60 ℃ and the speed of 550-700rpm, adding 15-25 parts of hydrochloric acid, stirring for 0.5-1h at the temperature of 55-60 ℃ and the speed of 550-700rpm, sequentially adding 1-1.5 parts of polydimethylsiloxane, 2-5 parts of oleic acid, 0.1-0.3 part of tannic acid, 2-5 parts of monopotassium phosphate and 3-6 parts of iron ion adsorption auxiliary agent, and stirring for 1.5-2h at the temperature of 55-60 ℃ and the speed of 550-700rpm to obtain the rust remover.
In a preferred embodiment of the present invention, step 2, the caustic wash process: selecting alkaline solution with pH of 11-12, adding 2-10% emulsifier, heating to 75-90 deg.C, spraying onto zinc layer surface, drying for 20min, cleaning with 56-60MPa high pressure water, and blowing with compressed air.
In a preferred embodiment of the invention, in step 3, the air inlet pressure of the sand sweeping device is controlled to be 0.15-0.25MPa, the distance between the gun nozzle and the steel structure is controlled to be 1.7-1.9m, and the angle is controlled to be 18-25 degrees, so as to obtain the average roughness of 25-40 μm.
In a preferred embodiment of the present invention, in step 3, the anticorrosive layer comprises the following raw materials in parts by weight: 45 parts of resin, 11 parts of nano quick-drying resin, 3 parts of alcohol ester, 1 part of thickening agent, 2 parts of water for diluting the thickening agent, 0.5 part of wetting agent, 0.5 part of flatting agent, 0.4 part of defoaming agent, 0.7 part of dispersing agent, 5 parts of heavy calcium carbonate, 7 parts of mica powder, 3 parts of barium sulfate, 1 part of flash rust prevention auxiliary agent, 4 parts of pigment and 10 parts of water.
In a preferred embodiment of the invention, in step 5, the dry film thickness of the epoxy anticorrosive nano-coating is not less than 50 μm; the epoxy anticorrosive nano-coating comprises the following raw materials in parts by weight: 30 parts of water-based epoxy resin, 30 parts of solvent, 7 parts of silicon carbide, 7 parts of alumina, 15 parts of nano quartz powder, 8 parts of titanium dioxide, 8 parts of zinc powder, 8 parts of cobalt-nickel ultrafine metal powder, 15 parts of ceramic powder, 8 parts of silica gel powder and 4 parts of graphite.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the rust remover and the anticorrosive paint are prepared from the components and the proportion, the construction method can quickly remove rust stains of steel, and the steel has good impact resistance and corrosion resistance after being subjected to anticorrosive treatment.
2. The zinc coating and the epoxy anticorrosion nanometer dry film ensure the compactness, stability, weather resistance, acid and alkali resistance and comprehensive anticorrosion performance of the surface of the steel structure.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
Example 1
An anti-corrosion processing technology for a steel structure is characterized by comprising the following steps:
step 1, base surface treatment, namely polishing and chamfering all sharp edges and R holes of a steel structure, removing oxide skin, iron rust and other pollutants by using a rust remover, washing the surface by using water, drying, and performing shot blasting treatment by using 100% steel shot abrasive;
wherein, preparing a rust remover: adding 0.3 part of hexamethylenetetramine into 60 parts of water, stirring for 1.5h at 55-60 ℃ and 550-700rpm, adding 15 parts of hydrochloric acid, stirring for 0.5h at 55-60 ℃ and 550-700rpm, sequentially adding 1 part of polydimethylsiloxane, 2 parts of oleic acid, 0.1 part of tannic acid, 2 parts of potassium dihydrogen phosphate and 3 parts of iron ion adsorption auxiliary agent, and stirring for 1.5h at 55-60 ℃ and 550-700rpm to obtain the rust remover.
Step 2, galvanizing, wherein the steel framework treated in the step 1 is firstly pickled and then dipped into a zinc pool for galvanizing, the pickling time is 30min, the volume of the zinc pool is not less than 160-;
wherein, the alkali washing process comprises the following steps: selecting alkaline solution with pH of 11-12, adding 2-10% emulsifier, heating to 75-90 deg.C, spraying onto zinc layer surface, drying for 20min, cleaning with 56-60MPa high pressure water, and blowing with compressed air.
Step 3, sweeping sand, namely sweeping sand by adopting a non-metal abrasive, wherein the air inlet pressure of sand sweeping equipment is controlled to be 0.15-0.25MPa, the distance between a gun nozzle and a steel structure is controlled to be 1.7-1.9m, and the angle is controlled to be 18-25 degrees, so that the average roughness of 25-40 mu m is obtained;
step 4, surface corrosion prevention, namely coating a corrosion prevention layer on the surface of the steel structure;
wherein the anticorrosive layer comprises the following raw materials in parts by weight: 45 parts of resin, 11 parts of nano quick-drying resin, 3 parts of alcohol ester, 1 part of thickening agent, 2 parts of water for diluting the thickening agent, 0.5 part of wetting agent, 0.5 part of flatting agent, 0.4 part of defoaming agent, 0.7 part of dispersing agent, 5 parts of heavy calcium carbonate, 7 parts of mica powder, 3 parts of barium sulfate, 1 part of flash rust prevention auxiliary agent, 4 parts of pigment and 10 parts of water.
Step 5, spraying, namely spraying epoxy anticorrosive nano paint on the surface of the steel structure coated with the anticorrosive layer in the step 4 by adopting air;
wherein the thickness of the dry film of the epoxy anticorrosive nano-coating is not less than 50 μm; the epoxy anticorrosive nano-coating comprises the following raw materials in parts by weight: 30 parts of water-based epoxy resin, 30 parts of solvent, 7 parts of silicon carbide, 7 parts of alumina, 15 parts of nano quartz powder, 8 parts of titanium dioxide, 8 parts of zinc powder, 8 parts of cobalt-nickel ultrafine metal powder, 15 parts of ceramic powder, 8 parts of silica gel powder and 4 parts of graphite.
Example 2
An anti-corrosion processing technology for a steel structure is characterized by comprising the following steps:
step 1, base surface treatment, namely polishing and chamfering all sharp edges and R holes of a steel structure, removing oxide skin, iron rust and other pollutants by using a rust remover, washing the surface by using water, drying, and performing shot blasting treatment by using 100% steel shot abrasive;
wherein, preparing a rust remover: adding 0.6 part of hexamethylenetetramine into 90 parts of water, stirring at 55-60 ℃ and 550-700rpm for 2h, adding 25 parts of hydrochloric acid, stirring at 55-60 ℃ and 550-700rpm for 1h, sequentially adding 1.5 parts of polydimethylsiloxane, 5 parts of oleic acid, 0.3 part of tannic acid, 5 parts of potassium dihydrogen phosphate and 6 parts of iron ion adsorption auxiliary agent, and stirring at 55-60 ℃ and 550-700rpm for 2h to obtain the rust remover.
Step 2, galvanizing, namely pickling the steel framework treated in the step 1 and then immersing the steel framework into a zinc pool for galvanizing, wherein the pickling time is 50min, the volume of the zinc pool is not less than 160-;
wherein, the alkali washing process comprises the following steps: selecting alkaline solution with pH of 11-12, adding 2-10% emulsifier, heating to 75-90 deg.C, spraying onto zinc layer surface, drying for 20min, cleaning with 56-60MPa high pressure water, and blowing with compressed air.
Step 3, sweeping sand, namely sweeping sand by adopting a non-metal abrasive, wherein the air inlet pressure of sand sweeping equipment is controlled to be 0.15-0.25MPa, the distance between a gun nozzle and a steel structure is controlled to be 1.7-1.9m, and the angle is controlled to be 18-25 degrees, so that the average roughness of 25-40 mu m is obtained;
step 4, surface corrosion prevention, namely coating a corrosion prevention layer on the surface of the steel structure;
wherein the anticorrosive layer comprises the following raw materials in parts by weight: 45 parts of resin, 11 parts of nano quick-drying resin, 3 parts of alcohol ester, 1 part of thickening agent, 2 parts of water for diluting the thickening agent, 0.5 part of wetting agent, 0.5 part of flatting agent, 0.4 part of defoaming agent, 0.7 part of dispersing agent, 5 parts of heavy calcium carbonate, 7 parts of mica powder, 3 parts of barium sulfate, 1 part of flash rust prevention auxiliary agent, 4 parts of pigment and 10 parts of water.
Step 5, spraying, namely spraying epoxy anticorrosive nano paint on the surface of the steel structure coated with the anticorrosive layer in the step 4 by adopting air;
wherein the thickness of the dry film of the epoxy anticorrosive nano-coating is not less than 50 μm; the epoxy anticorrosive nano-coating comprises the following raw materials in parts by weight: 30 parts of water-based epoxy resin, 30 parts of solvent, 7 parts of silicon carbide, 7 parts of alumina, 15 parts of nano quartz powder, 8 parts of titanium dioxide, 8 parts of zinc powder, 8 parts of cobalt-nickel ultrafine metal powder, 15 parts of ceramic powder, 8 parts of silica gel powder and 4 parts of graphite.
The following are data obtained in actual use of examples 1 and 2:
| rust cleaning ability (min) | Impact resistance (N cm) | |
| Example 1 | 9 | 263 |
| Example 1 | 13 | 276 |
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An anti-corrosion processing technology for a steel structure is characterized by comprising the following steps:
step 1, base surface treatment, namely polishing and chamfering all sharp edges and R holes of a steel structure, removing oxide skin, iron rust and other pollutants by using a rust remover, washing the surface by using water, drying, and performing shot blasting treatment by using 100% steel shot abrasive;
step 2, galvanizing, wherein the steel framework treated in the step 1 is firstly pickled and then dipped into a zinc bath for galvanizing, the pickling time is 30-50min, the volume of the zinc bath is not less than 160-;
step 3, sand sweeping is carried out, and non-metal grinding materials are adopted for sand sweeping;
step 4, surface corrosion prevention, namely coating a corrosion prevention layer on the surface of the steel structure;
and 5, spraying, namely spraying epoxy anticorrosive nano paint on the surface of the steel structure coated with the anticorrosive layer in the step 4 by adopting air.
2. The steel structure anti-corrosion processing technology according to claim 1, wherein in step 1, a rust remover is prepared: adding 0.3-0.6 part of hexamethylenetetramine into 60-90 parts of water, stirring for 1.5-2h at the temperature of 55-60 ℃ and the speed of 550-700rpm, adding 15-25 parts of hydrochloric acid, stirring for 0.5-1h at the temperature of 55-60 ℃ and the speed of 550-700rpm, sequentially adding 1-1.5 parts of polydimethylsiloxane, 2-5 parts of oleic acid, 0.1-0.3 part of tannic acid, 2-5 parts of monopotassium phosphate and 3-6 parts of iron ion adsorption auxiliary agent, and stirring for 1.5-2h at the temperature of 55-60 ℃ and the speed of 550-700rpm to obtain the rust remover.
3. The steel structure anti-corrosion processing technology according to claim 1, wherein in the step 2, an alkali washing process comprises the following steps: selecting alkaline solution with pH of 11-12, adding 2-10% emulsifier, heating to 75-90 deg.C, spraying onto zinc layer surface, drying for 20min, cleaning with 56-60MPa high pressure water, and blowing with compressed air.
4. The steel frame structure anti-corrosion processing technique according to claim 1, wherein in step 3, the air inlet pressure of the sand sweeping device is controlled to be 0.15-0.25MPa, the distance between the gun nozzle and the steel frame structure is controlled to be 1.7-1.9m, and the angle is controlled to be 18-25 degrees, so as to obtain the average roughness of 25-40 μm.
5. The steel structure anticorrosion processing technology of claim 1, wherein in the step 3, the anticorrosion layer comprises the following raw materials in parts by weight: 45 parts of resin, 11 parts of nano quick-drying resin, 3 parts of alcohol ester, 1 part of thickening agent, 2 parts of water for diluting the thickening agent, 0.5 part of wetting agent, 0.5 part of flatting agent, 0.4 part of defoaming agent, 0.7 part of dispersing agent, 5 parts of heavy calcium carbonate, 7 parts of mica powder, 3 parts of barium sulfate, 1 part of flash rust prevention auxiliary agent, 4 parts of pigment and 10 parts of water.
6. The steel frame structure anti-corrosion processing technology according to claim 1, wherein in the step 5, the thickness of the dry film of the epoxy anti-corrosion nano coating is not less than 50 μm; the epoxy anticorrosive nano-coating comprises the following raw materials in parts by weight: 30 parts of water-based epoxy resin, 30 parts of solvent, 7 parts of silicon carbide, 7 parts of alumina, 15 parts of nano quartz powder, 8 parts of titanium dioxide, 8 parts of zinc powder, 8 parts of cobalt-nickel ultrafine metal powder, 15 parts of ceramic powder, 8 parts of silica gel powder and 4 parts of graphite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811387196.9A CN111197169A (en) | 2018-11-20 | 2018-11-20 | Anti-corrosion machining process for steel structure |
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| CN201811387196.9A CN111197169A (en) | 2018-11-20 | 2018-11-20 | Anti-corrosion machining process for steel structure |
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| CN111197169A true CN111197169A (en) | 2020-05-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459363A (en) * | 2020-11-17 | 2021-03-09 | 天长市通冠无动力风机有限公司 | Fireproof and anti-corrosion method for roof ventilation skylight |
| CN114410206A (en) * | 2022-02-22 | 2022-04-29 | 深圳市加逸科技有限公司 | Hardness-enhanced coating and coating method and application thereof |
| CN114439244A (en) * | 2022-02-24 | 2022-05-06 | 中铁建设集团有限公司 | Construction method of electric shuttle-shaped sun-shading shutter outside daylighting roof |
-
2018
- 2018-11-20 CN CN201811387196.9A patent/CN111197169A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459363A (en) * | 2020-11-17 | 2021-03-09 | 天长市通冠无动力风机有限公司 | Fireproof and anti-corrosion method for roof ventilation skylight |
| CN114410206A (en) * | 2022-02-22 | 2022-04-29 | 深圳市加逸科技有限公司 | Hardness-enhanced coating and coating method and application thereof |
| CN114439244A (en) * | 2022-02-24 | 2022-05-06 | 中铁建设集团有限公司 | Construction method of electric shuttle-shaped sun-shading shutter outside daylighting roof |
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