CN102409345A - Anticorrosion cladding method of complex joint of ocean platform - Google Patents
Anticorrosion cladding method of complex joint of ocean platform Download PDFInfo
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- CN102409345A CN102409345A CN2011103501747A CN201110350174A CN102409345A CN 102409345 A CN102409345 A CN 102409345A CN 2011103501747 A CN2011103501747 A CN 2011103501747A CN 201110350174 A CN201110350174 A CN 201110350174A CN 102409345 A CN102409345 A CN 102409345A
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Abstract
The invention discloses an anticorrosion cladding method of a complex joint of an ocean platform, which comprises the following steps of: (1) carrying out manual rust removal/or blast sanding on a to-be-processed steel structure of the complex joint of the ocean platform; (2) coating corrosion inhibition repair cream on the surface of the steel structure which is subjected to the processing in the step (1); (3) sticking a mineral oil anti-corrosion band on the corrosion inhibition repair cream; and (4) coating unsaturated polyester resin on the mineral oil anti-corrosion band, sticking the glass wool cloth on the unsaturated polyester resin, coating the unsaturated polyester resin on the glass wool cloth, and rolling. The invention has the beneficial effects that the construction is convenient, the surface processing is simple, and the anticorrosion cladding method is suitable for an object with any shape and any structure; and by adopting the method, the complex joint of the ocean platform has good sealability, impact resistance and excellent anticorrosion effect, is environmental-friendly, and has no toxicity or pollution. The anticorrosion cladding method can be suitable for the cladding corrosion resistance of any complex joint of the ocean platform.
Description
Technical field
The present invention relates to a kind of corrosion protection method for coating of ocean steel construction, be specifically related to the corrosion protection method for coating at a kind of ocean platform complex node place.
Background technology
The ocean is huge resource treasure-house, and along with the continuous increase of science and technology development and population, the resource of land more and more can not satisfy needs of economic development, and the proportion that the development and utilization of marine resources accounts in national economy becomes more and more important.Verify at present; China's offshore petroleum resources amount accounts for 1/4 of national oil ultimate production, and only the total reserves verified at present of Bohai Bay Oil just surpasses 4,500,000,000 tons, and China is in the five-year; More than 500 hundred million yuan be will invest and 50 production vessels, 1100 mouthfuls of recovery wells built in the Bohai Sea.Because ferrous materials toughness is big, intensity is high, low price; These production vessels all adopt ferrous materials to process at present; And the inevitable direct threats of the heavy corrosion property of steel the safety of these production vessels; And cause serious economy loss, therefore, the corresponding Protective Research of offshore platform is just seemed very urgent.And platform complex node place is owing to the reason of welding; Spot corrosion very easily takes place; Weld decay, thus cause that additional stress is concentrated, produce fatigue cracking; This makes the complex node place become ocean platform one of corrosive zone to take place the most easily, therefore how to prevent effectively that the corrosion of complex node from also being the emphasis of anticorrosive work.Protection about the platform complex node generally is to adopt sacrificial anode at present, has increased additional load one of hundreds of ton to platform but the used anodic weight of platform is many, has also caused a large amount of wastings of resources; And the price continuous rise of aluminium zinc, this causes the waste on country and the enterprise's financial resources again; A large amount of aluminium zinc solutes can pollute sea environment, cause huge pollution disaster for China's ocean environment.Therefore the method for seeking the long lasting protection platform complex of a kind of economy node becomes very necessary.
Summary of the invention
The corrosion protection method for coating that the purpose of this invention is to provide a kind of ocean platform complex node place.
The corrosion protection method for coating at a kind of ocean platform complex node provided by the invention place comprises the steps:
(1) steelwork with pending ocean platform complex node place carries out hand cleaning and/or sandblasting;
(2) smear the inhibition repairing paste to the steelwork surface of handling through step (1);
(3) on said inhibition repairing paste, paste the anticorrosion band of mineral grease;
(4) to the anticorrosion brushing unsaturated polyester resin of being with of said mineral grease; Sticking glass silk cloth on said unsaturated polyester resin, brushing said unsaturated polyester resin and after roll extrusion, getting final product on said glass wool cloth then.
In the above-mentioned corrosion protection method for coating, the steelwork at the ocean platform complex node place after said hand cleaning and/or the sandblasting is reached more than the ISO St2 standard, do not have obvious bubbling, floating rust and marine life; The surface projection acute angle that do not have generally is not higher than 5mm, the most very much not is higher than 10mm.
In the above-mentioned corrosion protection method for coating; Said inhibition repairing paste can be vaseline class anti-corrosion plaster; It is made up of mineral grease, rust-preventive agent, lubricant and weighting agent; The ratio of quality and the number of copies of said mineral grease, rust-preventive agent, lubricant and weighting agent can be (2～9): (1～2): (6～8): (4～8) specifically can be 2: 1: 6: 4,9: 2: 8: 8 or 5: 1: 7: 6; Said rust-preventive agent is the mixture of tannic acid and metal-sulfinate, and the ratio of quality and the number of copies of wherein said tannic acid and metal-sulfinate is 1: 1, and said metal-sulfinate specifically can be benzene sulfinic acid sodium salt; Said lubricant can be Liquid Paraffin; Said weighting agent can be lime carbonate or mineral mica.
In the above-mentioned corrosion protection method for coating, the amount of smearing of said inhibition repairing paste can be 300g/m
2-500g/m
2, corrosion especially severe place is about 400g/m
2～500g/m
2
In the above-mentioned corrosion protection method for coating, the stickup number of plies of the anticorrosion band of mineral grease can be 2 layers at least described in the step (3), and interlayer laminates as greasy Buffer Pool each other.
In the above-mentioned corrosion protection method for coating, the thickness of the anticorrosion band of said mineral grease can be 1.1mm～5mm, specifically can be 1.1mm, 3mm or 5mm; The anticorrosion band of said mineral grease be soaked said inhibition repairing paste spin cloth or non-woven fabrics, the said cloth and non-woven fabrics nylon or polyethylene terephthalate of spinning is processed.
In the above-mentioned corrosion protection method for coating, said unsaturated polyester resin can be O-phthalic acid type unsaturated polyester resin, and said O-phthalic acid type unsaturated polyester resin specifically can be diisobutyl phthalate; The brushing amount of said unsaturated polyester resin can be 2-3 road/every layer of woven fiber glass; The thickness of said glass wool cloth is 0.14mm～0.8mm, specifically can be 0.14mm, 0.5mm or 0.8mm.
In the above-mentioned corrosion protection method for coating, said method also comprises the step of repeating step (4) 4 times-6 times.
In the above-mentioned corrosion protection method for coating, the density of the said glass wool cloth of successively pasting reduces gradually.
In the above-mentioned corrosion protection method for coating,, can not come and go roller coating with an end brushing to the relative end of said unsaturated polyester resin from said steelwork surface.
The beneficial effect of corrosion protection method for coating provided by the invention is: easy construction, and surface treatment is simple, applicable to the Any shape works; Have good stopping property and shock resistance, preservative effect is excellent; Environmental protection, nontoxic pollution-free is anticorrosion applicable to the coating of Any shape platform complex node.
Embodiment
Employed experimental technique is ordinary method like no specified otherwise among the following embodiment.
Used material, reagent etc. like no specified otherwise, all can obtain from commercial sources among the following embodiment.
The corrosion protection of embodiment 1, ocean platform node steelwork coats
At first hand cleaning is carried out on the surface of ocean platform node steelwork and handle, require the surface treatment of construction area DH36 steelwork need reach more than the ISO St2 standard, do not have obvious bubbling, floating rust and marine life; The surface projection acute angle that do not have is not higher than 5mm, the most very much not is higher than 10mm; Then; (its mixture by mineral grease, tannic acid and benzene sulfinic acid sodium salt, Liquid Paraffin and lime carbonate are 2: 1: 6 according to ratio of quality and the number of copies: 4 form evenly to smear vaseline class anti-corrosion plaster on the steelwork surface of handling well; Wherein, The ratio of quality and the number of copies of tannic acid and benzene sulfinic acid sodium salt is 1: 1), the consumption smooth surface is about 300g/m
2Corrosion especially severe place is about 400g/m
2Then the anticorrosion band of mineral grease (is and soaked vaseline class anti-corrosion plaster (promptly mixture, Liquid Paraffin and the lime carbonate by mineral grease, tannic acid and benzene sulfinic acid sodium salt is 2: 1: 6 according to ratio of quality and the number of copies: 4 mixtures formed; Wherein, The ratio of quality and the number of copies of tannic acid and benzene sulfinic acid sodium salt is 1: 1) thickness be the cloth that spins of 1.1mm) be cut into one section suitable length, paste on the surface that is coating the inhibition repairing paste, require firmly anticorrosion band tension to be paved; The inside air is extruded, twined two-layer everywhere; After pasting; The diisobutyl phthalate for preparing (is added solidifying agent; Solidifying agent is the 55%MEKPO methyl ethyl ketone) use the hair roller directly evenly brushing mineral grease anticorrosion with on (from an end brushing to the relative end on steelwork surface; Can not come and go brushing), the glass wool cloth (its thickness is 0.14mm) that will be cut into suitable size then sticks, again brushing O-phthalic acid type unsaturated polyester resin 2 roads/every layer of woven fiber glass; Make unsaturated polyester resin fully soak into glass wool cloth with the steel rider roll extrusion, drive bubble wherein out of; After one deck glass wool cloth is pasted completion, repeat the step 4 time of above-mentioned brushing unsaturated polyester resin, glass wool cloth and unsaturated polyester resin again, thereby obtain 5 layers of glass wool cloth, the density of this glass wool cloth of 5 layers is 1kg/m
3, reduce gradually from the density of the 1st layer to the 5th layer glass wool cloth.
The above-mentioned ocean platform node steelwork that coats through corrosion protection places the water of taking from marine site, the Bohai Sea, in the laboratory, carries out simulated experiment 2 years, and the corrosion prevention percentage of measuring with weight-loss method reaches more than 99.9%.
The corrosion protection of embodiment 2, ocean platform node steelwork coats
At first sandblasting is carried out on the surface of ocean platform node steelwork, required the surface treatment of construction area DH36 steelwork need reach more than the ISO St2 standard, do not have obvious bubbling, floating rust and marine life; The surface projection acute angle that do not have is not higher than 5mm, the most very much not is higher than 10mm; Then; (its mixture by mineral grease, tannic acid and benzene sulfinic acid sodium salt, Liquid Paraffin and mineral mica are 9: 2: 8 according to ratio of quality and the number of copies: 8 form evenly to smear vaseline class anti-corrosion plaster on the steelwork surface of handling well; Wherein, The ratio of quality and the number of copies of tannic acid and benzene sulfinic acid sodium salt is 1: 1), the consumption smooth surface is about 300g/m
2Corrosion especially severe place is about 500g/m
2Then the anticorrosion band of mineral grease (is and soaked vaseline class anti-corrosion plaster (promptly mixture, Liquid Paraffin and the mineral mica by mineral grease, tannic acid and benzene sulfinic acid sodium salt is 9: 2: 8 according to ratio of quality and the number of copies: 8 mixtures formed; Wherein, The ratio of quality and the number of copies of tannic acid and benzene sulfinic acid sodium salt is 1: 1) thickness is the cloth that spins of 5mm) be cut into one section suitable length, paste on the surface that is coating the inhibition repairing paste, require firmly anticorrosion band tension to be paved; The inside air is extruded, twined three layers everywhere; After pasting; The diisobutyl phthalate for preparing (is added solidifying agent; Solidifying agent is the 55%MEKPO methyl ethyl ketone) use the hair roller directly evenly brushing mineral grease anticorrosion with on (from an end brushing to the relative end on steelwork surface; Can not come and go brushing), the glass wool cloth (its thickness is 0.8mm) that will be cut into suitable size then sticks, again brushing O-phthalic acid type unsaturated polyester resin 3 roads/every layer of woven fiber glass; Make unsaturated polyester resin fully soak into glass wool cloth with the steel rider roll extrusion, drive bubble wherein out of; After one deck glass wool cloth is pasted completion, repeat the step 5 time of above-mentioned brushing unsaturated polyester resin, glass wool cloth and unsaturated polyester resin again, thereby obtain 6 layers of glass wool cloth, the density of this glass wool cloth of 6 layers is 3.5kg/m
3, reduce gradually from the density of the 1st layer to the 6th layer glass wool cloth.
The above-mentioned ocean platform node steelwork that coats through corrosion protection places the water of taking from marine site, the Bohai Sea, in the laboratory, carries out simulated experiment 2 years, and the corrosion prevention percentage of measuring with weight-loss method reaches 99.9%.
The corrosion protection of embodiment 3, ocean platform node steelwork coats
At first sandblasting is carried out on the surface of ocean platform node steelwork, required the surface treatment of construction area DH36 steelwork need reach more than the ISO St2 standard, do not have obvious bubbling, floating rust and marine life; The surface projection acute angle that do not have is not higher than 5mm, the most very much not is higher than 10mm; Then; (its mixture by mineral grease, tannic acid and benzene sulfinic acid sodium salt, Liquid Paraffin and lime carbonate are 5: 1: 7 according to ratio of quality and the number of copies: 6 form evenly to smear vaseline class anti-corrosion plaster on the steelwork surface of handling well; Wherein, The ratio of quality and the number of copies of tannic acid and benzene sulfinic acid sodium salt is 1: 1), the consumption smooth surface is about 300g/m
2Corrosion especially severe place is about 450g/m
2Then the anticorrosion band of mineral grease (is and soaked vaseline class anti-corrosion plaster (promptly mixture, Liquid Paraffin and the lime carbonate by mineral grease, tannic acid and benzene sulfinic acid sodium salt is 5: 1: 7 according to ratio of quality and the number of copies: 6 mixtures formed; Wherein, The ratio of quality and the number of copies of tannic acid and benzene sulfinic acid sodium salt is 1: 1) thickness is the non-woven fabrics of 3mm) be cut into one section suitable length, paste on the surface that is coating the inhibition repairing paste, require firmly anticorrosion band tension to be paved; The inside air is extruded, twined five layers everywhere; After pasting; The diisobutyl phthalate for preparing (is added solidifying agent; Solidifying agent is the 55%MEKPO methyl ethyl ketone) use the hair roller directly evenly brushing mineral grease anticorrosion with on (from an end brushing to the relative end on steelwork surface; Can not come and go brushing), the glass wool cloth (its thickness is 0.5mm) that will be cut into suitable size then sticks, again brushing O-phthalic acid type unsaturated polyester resin 3 roads/every layer of woven fiber glass; Make unsaturated polyester resin fully soak into glass wool cloth with the steel rider roll extrusion, drive bubble wherein out of; After one deck glass wool cloth is pasted completion, repeat the step 6 time of above-mentioned brushing unsaturated polyester resin, glass wool cloth and unsaturated polyester resin again, thereby obtain 7 layers of glass wool cloth, the density of this glass wool cloth of 7 layers is 2kg/m
3, reduce gradually from the density of the 1st layer to the 7th layer glass wool cloth.
The above-mentioned ocean platform node steelwork that coats through corrosion protection places the water of taking from marine site, the Bohai Sea, in the laboratory, carries out simulated experiment 2 years, and the corrosion prevention percentage of measuring with weight-loss method reaches 99.8%.
Claims (9)
1. the corrosion protection method for coating at an ocean platform complex node place comprises the steps:
(1) steelwork with pending ocean platform complex node place carries out hand cleaning and/or sandblasting;
(2) smear the inhibition repairing paste to the steelwork surface of handling through step (1);
(3) on said inhibition repairing paste, paste the anticorrosion band of mineral grease;
(4) to the anticorrosion brushing unsaturated polyester resin of being with of said mineral grease; Sticking glass silk cloth on said unsaturated polyester resin, brushing said unsaturated polyester resin and after roll extrusion, getting final product on said glass wool cloth then.
2. corrosion protection method for coating according to claim 1; It is characterized in that: said inhibition repairing paste is made up of mineral grease, rust-preventive agent, lubricant and weighting agent, and the ratio of quality and the number of copies of said mineral grease, rust-preventive agent, lubricant and weighting agent is (2～9): (1～2): (6～8): (4～8); Said rust-preventive agent is the mixture of tannic acid and metal-sulfinate, and the ratio of quality and the number of copies of wherein said tannic acid and metal-sulfinate is 1: 1, and said metal-sulfinate is a benzene sulfinic acid sodium salt; Said lubricant is a Liquid Paraffin; Said weighting agent is lime carbonate or mineral mica.
3. corrosion protection method for coating according to claim 1 and 2 is characterized in that: the amount of smearing of said inhibition repairing paste is 300g/m
2-500g/m
2
4. according to arbitrary described corrosion protection method for coating among the claim 1-3, it is characterized in that: the stickup number of plies of the anticorrosion band of mineral grease is at least 2 layers described in the step (3).
5. according to arbitrary described corrosion protection method for coating among the claim 1-4, it is characterized in that: the thickness of the anticorrosion band of said mineral grease is 1.1mm～5mm; The anticorrosion band of said mineral grease be soaked said inhibition repairing paste spin cloth or non-woven fabrics.
6. according to arbitrary described corrosion protection method for coating among the claim 1-5, it is characterized in that: said unsaturated polyester resin is an O-phthalic acid type unsaturated polyester resin; The thickness of said glass wool cloth is 0.14mm～0.8mm.
7. according to arbitrary described corrosion protection method for coating among the claim 1-6, it is characterized in that: said method also comprises the step of repeating step (4) 4 times-6 times.
8. corrosion protection method for coating according to claim 7 is characterized in that: the density of the said glass wool cloth of successively pasting reduces gradually.
9. according to arbitrary described corrosion protection method for coating among the claim 1-8, it is characterized in that: an end brushing to the relative end of said unsaturated polyester resin from said steelwork surface.
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Cited By (9)
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| CN105672368A (en) * | 2016-02-17 | 2016-06-15 | 江苏海上龙源风力发电有限公司 | Coating antiseptic technology for wave-splashing tidal range region of marine wind-electricity multiple pipe pile steel structure foundation |
| CN105822130A (en) * | 2016-05-06 | 2016-08-03 | 国网浙江省电力公司电力科学研究院 | Coated power transmission line iron tower base part and coating method thereof |
| CN105949890A (en) * | 2016-05-06 | 2016-09-21 | 国网浙江省电力公司电力科学研究院 | Coated transmission line net outdoor device and coating method thereof |
| CN106633268A (en) * | 2015-07-23 | 2017-05-10 | 斯耐克（天津）防腐科技有限公司 | A high-temperature resistant wax anticorrosion material |
| CN106948327A (en) * | 2017-05-02 | 2017-07-14 | 江苏慧天新能源科技有限公司 | A kind of steel construction ocean coats the preparation method of anti-corrosion glass fiber reinforced plastic protective cover |
| CN106967982A (en) * | 2017-05-11 | 2017-07-21 | 中国科学院海洋研究所 | A kind of efficient corrosion resisting method for marine environment wind power plant Inner Wind turbines supporting constructions |
| CN109355900A (en) * | 2018-10-31 | 2019-02-19 | 青岛迪恩特新材料科技有限公司 | A kind of height suitable for naval air environment sticks anti-corrosion belt and its preparation method and application |
| CN110576671A (en) * | 2019-07-19 | 2019-12-17 | 中国人民解放军海军航空大学青岛校区 | metal structure corrosion protection and reinforcement method |
| CN114605952A (en) * | 2021-12-29 | 2022-06-10 | 厦门捌斗新材料科技有限公司 | Flexible corrosion-resistant belt and preparation method and application thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106633268A (en) * | 2015-07-23 | 2017-05-10 | 斯耐克（天津）防腐科技有限公司 | A high-temperature resistant wax anticorrosion material |
| CN105672368A (en) * | 2016-02-17 | 2016-06-15 | 江苏海上龙源风力发电有限公司 | Coating antiseptic technology for wave-splashing tidal range region of marine wind-electricity multiple pipe pile steel structure foundation |
| CN105822130A (en) * | 2016-05-06 | 2016-08-03 | 国网浙江省电力公司电力科学研究院 | Coated power transmission line iron tower base part and coating method thereof |
| CN105949890A (en) * | 2016-05-06 | 2016-09-21 | 国网浙江省电力公司电力科学研究院 | Coated transmission line net outdoor device and coating method thereof |
| CN106948327A (en) * | 2017-05-02 | 2017-07-14 | 江苏慧天新能源科技有限公司 | A kind of steel construction ocean coats the preparation method of anti-corrosion glass fiber reinforced plastic protective cover |
| CN106967982A (en) * | 2017-05-11 | 2017-07-21 | 中国科学院海洋研究所 | A kind of efficient corrosion resisting method for marine environment wind power plant Inner Wind turbines supporting constructions |
| CN109355900A (en) * | 2018-10-31 | 2019-02-19 | 青岛迪恩特新材料科技有限公司 | A kind of height suitable for naval air environment sticks anti-corrosion belt and its preparation method and application |
| CN109355900B (en) * | 2018-10-31 | 2021-09-07 | 青岛迪恩特新材料科技有限公司 | High-viscosity anticorrosion belt suitable for marine atmospheric environment and preparation method and application thereof |
| CN110576671A (en) * | 2019-07-19 | 2019-12-17 | 中国人民解放军海军航空大学青岛校区 | metal structure corrosion protection and reinforcement method |
| CN114605952A (en) * | 2021-12-29 | 2022-06-10 | 厦门捌斗新材料科技有限公司 | Flexible corrosion-resistant belt and preparation method and application thereof |
| CN114605952B (en) * | 2021-12-29 | 2023-08-15 | 厦门捌斗新材料科技有限公司 | Flexible corrosion-resistant belt and preparation method and application thereof |
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