Atmospheric corrosion environment
大气腐蚀环境
Time of issue:2021-08-07 21:49:33
| Atmospheric corrosion environment | ||||||||||||||||||||||||||||||||
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In daily life, various steel structures can be seen everywhere. The steel structures in the atmospheric environment are affected by sunlight, wind and sand, rain and snow, frost and dew, and changes in temperature and humidity throughout the year. Among them, the oxygen and moisture in the atmosphere cause outdoor steel structures. An important factor for corrosion, industrial gases that cause corrosion of steel structures contain SO2, CO2, NO2, CI2, H2S, NH2, etc. Although these components are small in content, the corrosion hazards to steel cannot be ignored, of which SO2 has the greatest impact. CI2 can destroy the passivation film on the metal surface and cause the problem of electrochemical corrosion of metal materials, which not only wastes natural resources, causes economic losses, and sometimes brings certain social harms. |
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| Common atmospheric corrosion environment | ||||||||||||||||||||||||||||||||
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Bridge
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Airport
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Venue
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The bridge is suffering from corrosion in environments such as heat and humidity, acid rain, salt spray, industrial atmosphere, and marine atmosphere.
Corrosion, the design requires anti-corrosion years, decoration, gloss and color retention, easy maintenance |
The bridge is suffering from corrosion in environments such as heat and humidity, acid rain, salt spray, industrial atmosphere, and marine atmosphere.
Corrosion, the design requires anti-corrosion years, decoration, gloss and color retention, easy maintenance |
Steel structure is a structure mainly composed of steel materials, connected by bolts or rivets. The steel structure of stadiums is commonly used to form a long-term anti-corrosion structure with aggravating corrosion paint, or it is coated with supporting heavy anti-corrosion paint for protection
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| Reference plan for industrial heavy anticorrosion system in atmospheric corrosion environment＞＞ | ||||||||||||||||||||||||||||||||
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| Atmospheric corrosion environment industrial heavy anti-corrosion system solution provider＞＞ |
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With free on-site inspection and evaluation, and anti-corrosion solutions, Zindn helps customers to maximize the asset life cycle of anti-corrosion and extend the maintenance cycle. Prevent a series of problems that may be caused by anti-corrosion problems and increase the owner's operating costs.
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| Recommendations for anticorrosive coatings for steel structures in atmospheric corrosion environments＞＞ |
施工指南
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Composition:
An environmentally friendly two-component high-solid heavy anticorrosive water-based epoxy zinc-rich primer composed of water-based epoxy resin, zinc powder, solvent, additives and polyamide curing agent, with a dry film metal zinc content of ≥80%.
Performance characteristics:
The paint film has excellent anti-rust performance; it can provide cathodic protection for local damaged areas;
it has excellent adhesion to the surface of carbon steel that has been spray-cleaned.Waterborne epoxy zinc-rich primer ZD50800.00Composition:
An environmentally friendly two-component high-solid heavy anticorrosive water-based epoxy zinc-rich primer composed of water-based epoxy resin, zinc powder, solvent, additives and polyamide curing agent, with a dry film metal zinc content of ≥80%.
Performance characteristics:
The paint film has excellent anti-rust performance; it can provide cathodic protection for local damaged areas;
it has excellent adhesion to the surface of carbon steel that has been spray-cleaned. -
Composition:
a two-component solvent-based self-curing ethyl silicate shop primer designed for automatic spray application. Especially suitable for welding (inert Gas metal arc welding) and gas cutting.
Performance characteristics:
special zinc powder and coated flake aluminum powder are used together, the metal effect is good;
flake aluminum powder is arranged in parallel in the coating film, which can prevent the water and ultraviolet rays from invading the coating film;
Excellent outdoor rain anti-discoloration performance, dry film zinc content ≥80% , aluminum content ≥10% .
ZD83-02 zinc shield silver rich zinc coating0.00Composition:
a two-component solvent-based self-curing ethyl silicate shop primer designed for automatic spray application. Especially suitable for welding (inert Gas metal arc welding) and gas cutting.
Performance characteristics:
special zinc powder and coated flake aluminum powder are used together, the metal effect is good;
flake aluminum powder is arranged in parallel in the coating film, which can prevent the water and ultraviolet rays from invading the coating film;
Excellent outdoor rain anti-discoloration performance, dry film zinc content ≥80% , aluminum content ≥10% .
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Composition:
The utility model relates to a two-component high-solid heavy-duty anticorrosion coating composed of special modified resin, pure thin graphene, zinc powder, inorganic filler, solvent, auxiliary agent, etc.
Performance characteristics:
HG/T5573-2019“Graphene zinc powder coating”performance standards;
coating rate is high, compared with the epoxy zinc-rich can roughly save 15% of the paint consumption;
matching mature and stable, high adhesion, high construction tolerance;
paint film has excellent anti-rust performance, in C4, C5 environment can be a perfect substitute for traditional coating materials such as epoxy zinc-rich.
Zd6310-z1550 cold-sprayed vinylidene zinc coating0.00Composition:
The utility model relates to a two-component high-solid heavy-duty anticorrosion coating composed of special modified resin, pure thin graphene, zinc powder, inorganic filler, solvent, auxiliary agent, etc.
Performance characteristics:
HG/T5573-2019“Graphene zinc powder coating”performance standards;
coating rate is high, compared with the epoxy zinc-rich can roughly save 15% of the paint consumption;
matching mature and stable, high adhesion, high construction tolerance;
paint film has excellent anti-rust performance, in C4, C5 environment can be a perfect substitute for traditional coating materials such as epoxy zinc-rich.
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