CN1141414C - Anticorrosion method of marine steel - Google Patents
Anticorrosion method of marine steel Download PDFInfo
- Publication number
- CN1141414C CN1141414C CNB001110470A CN00111047A CN1141414C CN 1141414 C CN1141414 C CN 1141414C CN B001110470 A CNB001110470 A CN B001110470A CN 00111047 A CN00111047 A CN 00111047A CN 1141414 C CN1141414 C CN 1141414C
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- CN
- China
- Prior art keywords
- coating
- steel
- aluminium
- present
- zinc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
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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
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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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
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
- C23C28/025—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only with at least one zinc-based layer
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
- Coating By Spraying Or Casting (AREA)
- Revetment (AREA)
Abstract
The present invention relates to an anticorrosion method of marine steel, which comprises the step that firstly, the surface of steel components can be preprocessed by sand blasting. The present invention is characterized in that then, a zinc coating and an aluminium coating or an aluminium and zinc alloy coating can be orderly sprayed by flame or an arc spray gun; finally, the surfaces of the metal coatings are respectively sprayed with an organic coating for seal processing. The organic coating is a chlorinated rubber coating, an epoxy resin paint coating or a perchlorinated polyethylene coating. The method of the present invention can protect steel components in marine environment, particularly severe spray splash zones, and the safety attended time can reach more than 20 years. The effect is preferable, and the anticorrosion construction cost can be largely reduced.
Description
The present invention relates to a kind of method of anticorrosive metal, particularly relate to the anti-corrosion method of a kind of ocean iron and steel structures.
Ocean exploitation and utilizing in the process, the mankind have built a lot of large-scale marine structures, consider the over-all properties of construction costs and material, and these marine structures adopt intensity height, toughness is big, price is low carbon steel and low alloy steel to make mostly.The common large ocean engineering formula structure Design life-span is 20-30 at least, and 40-50 is on active service for the safety that guarantees these iron and steel structures at most, must take effective safeguard procedures to it.
At present, generally be to distinguish the application organic coating on the water to the corrosion protection design of the large-scale iron and steel facility of Yu Haiyang, the district adopts cathode protection technology under water.Because organic coating is easily aging, efflorescence, low at the sticking power of steel surface, so the life-span is shorter, need often repeat brushing, and the offshore construction condition is very arduous, difficulty is a lot, has increased maintenance cost greatly.The main component that is applied to the etch-proof thermospray metallic coating of marine structure now is zinc, aluminum and zinc aluminium alloy.In the marine corrosion medium, spray zinc, aluminum and zinc aluminium alloy covered provide reliable galvanic protection as anode for iron and steel, and corrosive medium and matrix are kept apart iron and steel is carried out mechanical protection.Spray spelter coating bonding state on steel substrate is good, is easy to spraying, and pore and oxide content in the coating are low, and iron and steel is had good galvanic protection effect.Exist more oxide compound and hole in the aluminium-plated coating, anticorrosive, erosion is better than spraying spelter coating, but the galvanic protection effect is worse than the spray spelter coating.
The anti-corrosion method that the purpose of this invention is to provide a kind of marine steel, it can remedy the above-mentioned deficiency of existing method, both can bring into play the good electrochemical cathode protection feature of spelter coating, can make full use of the reliable passive film machinery iris action of aluminum coating again.
A kind of anti-corrosion method of marine steel, comprise and earlier pre-treatment is carried out by sandblast in the surface of iron and steel parts, it is characterized in that re-using flame or arc pistol and spray spelter coating and aluminum coating successively, perhaps spray spelter coating and aluminium zinc coating successively, carry out sealing treatment at above-mentioned metallic coating external coating organic coating at last.
The safe active time in method of the present invention protection iron and steel parts especially harsh waves splash about district in ocean environment is more than 20 years, and is respond well, and can reduce the anticorrosive construction cost greatly.
Below by embodiment the present invention is described.
Embodiment 1
Oil development district, field of razor clam island has a platform originally only to adopt the zinc floor to make corrosion protection coating, owing to there is not other protection, is covered with iron rust already.By method of the present invention, using copper ore to carry out sandblast pretreatment to steel and iron member (the standpipe stake A) surface of this platform earlier reaches more than the Sa2.5 level, then use flame plating technology to spray zinc layer and aluminium lamination successively, their thickness is respectively 20-50 μ m and 70-100 μ m.And then carry out sealing treatment with chlorinated rubber coating, during operation, brushing two road chlorinated rubber priming paint are brushed two road chlorinated rubber finish paints more earlier.Use aforesaid method of the present invention, make the steel part of this platform use corrode for the year ends three so far.
Embodiment 2
There is a platform in oil development district, field of razor clam island, is to reequip on the basis of the retired platform of Japan, originally only adopts the zinc layer to make corrosion protection coating, owing to there is not other protection, is covered with iron rust already.By method of the present invention, using copper ore to carry out sandblast pretreatment to steel and iron member (the standpipe stake B) surface of this platform earlier reaches more than the Sa2.5 level, then use flame plating technology to spray zinc layer and aluminium zinc layer successively, their thickness is respectively 20-50 μ m and 60-100 μ m.And then carry out sealing treatment with epoxy resin-based paint, during operation, brushing two road epoxy resin-based paints 6101 are brushed two road epoxy resin finishes more earlier.Use aforesaid method of the present invention, make the steel part of this platform use corrode for the year ends three so far.
Embodiment 3
Oil development district, field of razor clam island has a platform to reequip on the basis of the retired platform of Japan, originally only adopts the zinc layer to make corrosion protection coating, owing to there is not other protection, is covered with iron rust already.By method of the present invention, using copper ore to carry out sandblast pretreatment to steel and iron member (the standpipe stake C) surface of this platform earlier reaches more than the Sa2.5 level, then use flame plating technology to spray low aluminium aluminium zinc (Al15Zn85) layer and high aluminum zinc aluminium alloy (Al55Zn45) layer successively, their thickness is respectively 30-60 μ m and 70-100 μ m.And then carry out sealing treatment with high chlorine polyethylene paint, during operation, brushing two roads high chlorine polyethylene priming paint is brushed two roads high chlorine polyethylene finish paint more earlier.Use aforesaid method of the present invention, make the steel part of this platform use corrode for the year ends three so far.
Claims (3)
1, a kind of anti-corrosion method of marine steel, comprise and earlier pre-treatment is carried out by sandblast in the surface of iron and steel parts, it is characterized in that re-using flame or arc pistol and spray spelter coating and aluminum coating successively, perhaps spray spelter coating and aluminium zinc coating successively, carry out sealing treatment at above-mentioned metallic coating external coating organic coating at last.
2, the method for claim 1 is characterized in that the thickness of described zinc layer, aluminium lamination and aluminium zinc layer is respectively 20-50 μ m, 70-100 μ m, 60-100 μ m.
3, the method for claim 1 is characterized in that described organic coating is chlorinated rubber coating, Resins, epoxy lacquering or high chlorine polyethylene coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001110470A CN1141414C (en) | 2000-05-18 | 2000-05-18 | Anticorrosion method of marine steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001110470A CN1141414C (en) | 2000-05-18 | 2000-05-18 | Anticorrosion method of marine steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1324958A CN1324958A (en) | 2001-12-05 |
| CN1141414C true CN1141414C (en) | 2004-03-10 |
Family
ID=4580989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001110470A Expired - Fee Related CN1141414C (en) | 2000-05-18 | 2000-05-18 | Anticorrosion method of marine steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1141414C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154610A (en) * | 2010-02-11 | 2011-08-17 | 上海建冶科技工程股份有限公司 | Construction technology for anticorrosive composite coating of steel structure |
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| DE602004013670D1 (en) * | 2003-04-30 | 2008-06-26 | Nippon Steel Corp | Corrosion-resistant heavy-duty steel with excellent resistance to abrasion and corrosion |
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| DE102005027828A1 (en) * | 2005-06-15 | 2006-12-21 | Mahle International Gmbh | Method for coating a cylinder liner |
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| CN105673624A (en) * | 2016-02-23 | 2016-06-15 | 海安欣凯富机械科技有限公司 | Oil cooler |
| CN105921388B (en) * | 2016-05-20 | 2017-06-13 | 依波精品（深圳）有限公司 | A kind of billon product anticorrosion loses surface treatment method |
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| CN108654950A (en) * | 2018-03-30 | 2018-10-16 | 青岛正为能源科技有限公司 | The Anticorrosion measure of steel construction under saline-alkali environment |
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-
2000
- 2000-05-18 CN CNB001110470A patent/CN1141414C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154610A (en) * | 2010-02-11 | 2011-08-17 | 上海建冶科技工程股份有限公司 | Construction technology for anticorrosive composite coating of steel structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1324958A (en) | 2001-12-05 |
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