CN1141414C - A kind of anti-corrosion method of marine steel - Google Patents
A kind of anti-corrosion method of marine steel Download PDFInfo
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- 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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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 24
- 239000010959 steel Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005260 corrosion Methods 0.000 title abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 17
- 239000011701 zinc Substances 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 9
- 229910000611 Zinc aluminium Inorganic materials 0.000 claims abstract description 8
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003973 paint Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- -1 polyethylene Polymers 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 5
- 238000005488 sandblasting Methods 0.000 claims abstract description 4
- 238000010073 coating (rubber) Methods 0.000 claims abstract 2
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010891 electric arc Methods 0.000 abstract description 2
- 239000004593 Epoxy Substances 0.000 abstract 1
- 238000004210 cathodic protection Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010285 flame spraying Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- HUIAGCXKFBECLZ-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[AlH3].[Zn] HUIAGCXKFBECLZ-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
-
- 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
一种海洋用钢的防腐蚀方法，包括先将钢铁部件的表面通过喷砂进行预处理，其特征是再使用火焰或电弧喷枪依次喷涂锌涂层和铝涂层，或者依次喷涂锌涂层和锌铝合金涂层，最后在上述金属涂层表面涂装有机涂层进行封闭处理。所述的有机涂层为氯化橡胶涂层、环氧树脂漆涂层或高氯聚乙烯涂层。本发明的方法保护钢铁部件在海洋环境中尤其是严酷的浪花飞溅区的安全服役时间在20年以上，效果良好，并能大大降低防腐施工成本。A method for preventing corrosion of marine steel, comprising firstly pretreating the surface of steel components by sandblasting, characterized in that zinc coating and aluminum coating are sequentially sprayed with a flame or electric arc spray gun, or zinc coating and aluminum coating are sequentially sprayed Zinc-aluminum alloy coating, and finally an organic coating is applied on the surface of the above-mentioned metal coating for sealing treatment. The organic coating is a chlorinated rubber coating, an epoxy paint coating or a perchlorinated polyethylene coating. The method of the invention protects the iron and steel parts in the marine environment, especially in the severe spray splash area, and the safe service time is more than 20 years, the effect is good, and the anticorrosion construction cost can be greatly reduced.
Description
本发明涉及一种金属防腐蚀的方法，特别是涉及一种海洋钢铁构筑物的防腐蚀方法。The invention relates to a metal anticorrosion method, in particular to an anticorrosion method for marine steel structures.
海洋开发和利用过程中，人类建造了很多大型海上构筑物，考虑到工程造价和材料的综合性能，这些海上构筑物大多采用强度高、韧性大、价格低的碳钢和低合金钢制造的。通常大型海洋工程式结构的设计寿命少则20-30年，多则40-50年，为了保证这些钢铁构筑物的安全服役，必须对其采取有效的防护措施。In the process of ocean development and utilization, humans have built many large offshore structures. Considering the project cost and the comprehensive performance of materials, most of these offshore structures are made of carbon steel and low alloy steel with high strength, high toughness, and low price. Usually, the design life of large-scale marine engineering structures ranges from 20-30 years to 40-50 years. In order to ensure the safe service of these steel structures, effective protective measures must be taken.
目前，对于海洋大型钢铁设施的防腐设计一般是在水上区涂装有机涂料，水下区采用阴极保护技术。由于有机涂层易老化、粉化、在钢铁表面的附着力低，因此寿命较短，需要经常重复涂刷，而海上施工条件十分艰苦，困难很多，大大增加了维修费用。现在应用于海洋构筑物防腐蚀的热喷涂金属涂层的主要成分是锌、铝和锌铝合金。在海洋腐蚀介质中，喷锌、铝和锌铝合金涂层对于钢铁来说作为阳极而提供可靠的阴极保护，并且将腐蚀介质与基体隔离开来对钢铁进行机械保护。喷锌涂层在钢铁基体上结合状况好，易于喷涂，涂层内的气孔和氧化物含量低，对钢铁具有良好的阴极保护作用。喷铝涂层内存在着较多的氧化物和孔隙，抗腐蚀、冲蚀性优于喷锌涂层，但阴极保护作用差于喷锌涂层。At present, for the anti-corrosion design of large-scale marine steel facilities, organic coatings are generally applied to the water area, and cathodic protection technology is used in the underwater area. Because the organic coating is easy to age, pulverize, and has low adhesion on the steel surface, it has a short lifespan and needs to be repainted frequently. The offshore construction conditions are very difficult and difficult, which greatly increases the maintenance cost. The main components of thermal sprayed metal coatings currently used for corrosion protection of marine structures are zinc, aluminum and zinc-aluminum alloys. In marine corrosive media, spraying zinc, aluminum and zinc-aluminum alloy coatings provide reliable cathodic protection for steel as an anode, and isolate the corrosive medium from the substrate to mechanically protect the steel. The zinc-sprayed coating has a good bonding condition on the steel substrate, is easy to spray, has low porosity and oxide content in the coating, and has a good cathodic protection effect on steel. There are more oxides and pores in the sprayed aluminum coating, and its corrosion resistance and erosion performance are better than that of the zinc sprayed coating, but its cathodic protection is worse than that of the zinc sprayed coating.
本发明的目的是提供一种海洋用钢的防腐蚀方法，它能弥补现有方法的上述不足，既可发挥锌涂层的优良阴极电化学保护特性，又可充分利用铝涂层的可靠的钝化膜机械阻隔作用。The object of this invention is to provide a kind of anticorrosion method of marine steel, which can make up for the above-mentioned deficiencies of the existing methods, can bring into play the excellent cathodic electrochemical protection characteristics of the zinc coating, and can make full use of the reliable corrosion resistance of the aluminum coating. Passive film mechanical barrier effect.
一种海洋用钢的防腐蚀方法，包括先将钢铁部件的表面通过喷砂进行预处理，其特征是再使用火焰或电弧喷枪依次喷涂锌涂层和铝涂层，或者依次喷涂锌涂层和锌铝合金涂层，最后在上述金属涂层表面涂装有机涂层进行封闭处理。A method for preventing corrosion of marine steel, comprising firstly pretreating the surface of steel components by sandblasting, characterized in that zinc coating and aluminum coating are sequentially sprayed with a flame or electric arc spray gun, or zinc coating and aluminum coating are sequentially sprayed Zinc-aluminum alloy coating, and finally an organic coating is applied on the surface of the above-mentioned metal coating for sealing treatment.
本发明的方法保护钢铁部件在海洋环境中尤其是严酷的浪花飞溅区的安全服役时间在20年以上，效果良好，并能大大降低防腐施工成本。The method of the invention protects the iron and steel parts in the marine environment, especially in the severe spray splash area, and the safe service time is more than 20 years, the effect is good, and the anticorrosion construction cost can be greatly reduced.
下面通过实施例说明本发明。The present invention is illustrated by the following examples.
实施例1Example 1
埕岛石油开发区有一个平台起初只采用锌层作防腐涂层，由于没有其它保护，早已布满铁锈。按本发明的方法，先对该平台的钢铁构件(立管桩A)表面使用铜矿砂进行喷砂预处理达Sa2.5级以上，接着使用火焰喷涂工艺依次喷涂锌层和铝层，它们的厚度分别为20-50μm和70-100μm。然后再用氯化橡胶涂料进行封闭处理，操作时，先涂刷二道氯化橡胶底漆，再涂刷二道氯化橡胶面漆。用本发明的上述方法，使得该平台的钢件至今已使用三年末发生腐蚀。There is a platform in Chengdao Petroleum Development Zone, which only uses zinc layer as anti-corrosion coating at first, but it has already been covered with rust because there is no other protection. According to the method of the present invention, first use copper ore sand to carry out blasting pretreatment on the surface of the iron and steel member (riser pile A) of the platform to reach more than Sa2.5 grade, then use flame spraying process to spray zinc layer and aluminum layer successively, they The thicknesses are 20-50 μm and 70-100 μm, respectively. Then use chlorinated rubber paint for sealing treatment. During operation, first apply two chlorinated rubber primers, and then apply two chlorinated rubber topcoats. With above-mentioned method of the present invention, make the steel parts of this platform corrode at the end of three years of use so far.
实施例2Example 2
埕岛石油开发区有一个平台，是在日本退役平台的基础上改装的，起初只采用锌层作防腐涂层，由于没有其它保护，早已布满铁锈。按本发明的方法，先对该平台的钢铁构件(立管桩B)表面使用铜矿砂进行喷砂预处理达Sa2.5级以上，接着使用火焰喷涂工艺依次喷涂锌层和锌铝合金层，它们的厚度分别为20-50μm和60-100μm。然后再用环氧树脂漆进行封闭处理，操作时，先涂刷二道环氧树脂漆6101，再涂刷二道环氧树脂面漆。用本发明的上述方法，使得该平台的钢件至今已使用三年末发生腐蚀。There is a platform in Chengdao Petroleum Development Zone, which was refitted on the basis of a decommissioned platform in Japan. At first, only a zinc layer was used as an anti-corrosion coating. Since there was no other protection, it was already covered with rust. According to the method of the present invention, first use copper ore sand to carry out sandblasting pretreatment on the surface of the steel member (standpipe pile B) of the platform to reach Sa2.5 level or above, and then use the flame spraying process to spray zinc layer and zinc-aluminum alloy layer successively , and their thicknesses are 20-50 μm and 60-100 μm, respectively. Then use epoxy resin paint for sealing treatment. During operation, first apply two coats of epoxy resin paint 6101, and then coat with two coats of epoxy resin topcoat. With above-mentioned method of the present invention, make the steel parts of this platform corrode at the end of three years of use so far.
实施例3Example 3
埕岛石油开发区有一个平台在日本退役平台的基础上改装的，起初只采用锌层作防腐涂层，由于没有其它保护，早已布满铁锈。按本发明的方法，先对该平台的钢铁构件(立管桩C)表面使用铜矿砂进行喷砂预处理达Sa2.5级以上，接着使用火焰喷涂工艺依次喷涂低铝锌铝合金(Al15Zn85)层和高铝锌铝合金(Al55Zn45)层，它们的厚度分别为30-60μm和70-100μm。然后再用高氯聚乙烯漆进行封闭处理，操作时，先涂刷二道高氯聚乙烯底漆，再涂刷二道高氯聚乙烯面漆。用本发明的上述方法，使得该平台的钢件至今已使用三年末发生腐蚀。A platform in Chengdao Petroleum Development Zone was refitted on the basis of a decommissioned platform in Japan. At first, only a zinc layer was used as an anti-corrosion coating. Since there was no other protection, it was already covered with rust. According to the method of the present invention, first use copper ore sand to carry out blasting pretreatment on the surface of the iron and steel member (standpipe pile C) of the platform to reach more than Sa2.5 grade, then use the flame spraying process to spray the low-aluminum-zinc-aluminum alloy (Al15Zn85) successively ) layer and high aluminum zinc aluminum alloy (Al55Zn45) layer, their thicknesses are 30-60 μm and 70-100 μm respectively. Then use high-chloride polyethylene paint for sealing treatment. During operation, first apply two high-chloride polyethylene primers, and then apply two high-chloride polyethylene topcoats. With above-mentioned method of the present invention, make the steel parts of this platform corrode at the end of three years of use so far.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001110470A CN1141414C (en) | 2000-05-18 | 2000-05-18 | A kind of anti-corrosion method of marine steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001110470A CN1141414C (en) | 2000-05-18 | 2000-05-18 | A kind of anti-corrosion method of marine steel |
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| CN1324958A CN1324958A (en) | 2001-12-05 |
| CN1141414C true CN1141414C (en) | 2004-03-10 |
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| CNB001110470A Expired - Fee Related CN1141414C (en) | 2000-05-18 | 2000-05-18 | A kind of anti-corrosion method of marine steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| CN113862597A (en) * | 2021-09-30 | 2021-12-31 | 江苏卓奇新材料科技有限公司 | Bearing surface protection composite coating structure and preparation method thereof |
| CN114011691A (en) * | 2021-11-08 | 2022-02-08 | 上饶鑫邦绿色装配建筑科技有限公司 | Anti-corrosion treatment method for building steel member |
-
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 |
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| CN1324958A (en) | 2001-12-05 |
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