Anticorrosion cladding method of complex joint of ocean platform
An offshore platform and complex technology, applied in the field of anti-corrosion coating of marine steel structures, can solve problems such as weld corrosion, pitting corrosion, marine environmental pollution disasters, etc., and achieve good airtightness, impact resistance, and anti-corrosion effect. Excellent, simple finish
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Embodiment 1
[0021] Example 1. Anti-corrosion coating of offshore platform node steel structure
[0022] First, the surface of the steel structure of the offshore platform node is manually derusted. It is required that the surface treatment of the DH36 steel structure in the construction area must meet the ISO St2 standard, without obvious bubbling, floating rust and marine organisms; the surface protrusions should not have sharp angles, and no It is higher than 5mm, and the maximum is not higher than 10mm; then, evenly apply petrolatum anti-corrosion paste (which is composed of mineral oil, a mixture of tannic acid and sodium benzene sulfinate, liquid paraffin and calcium carbonate) on the surface of the treated steel structure. The ratio of parts by mass is 2:1:6:4, wherein the ratio of parts by mass of tannic acid to sodium benzenesulfinate is 1:1), and the amount of smooth surface is about 300g / m 2 ; Corrosion is particularly serious about 400g / m 2 ; Then the mineral oil anticorrosion...
Embodiment 2
[0024] Example 2. Anti-corrosion coating of steel structure of offshore platform nodes
[0025] First, sand blast the surface of the steel structure of the offshore platform node. It is required that the surface treatment of the DH36 steel structure in the construction area must meet the ISO St2 standard or above, without obvious bubbling, floating rust and marine organisms; the surface protrusions should not have sharp angles, not high 5mm, the maximum is not higher than 10mm; then, evenly apply petrolatum anti-corrosion paste (which is composed of mineral oil, a mixture of tannic acid and sodium benzene sulfinate, mobile paraffin and mineral mica on the surface of the treated steel structure according to the quality The ratio of parts is 9:2:8:8, wherein the ratio of tannic acid to sodium benzenesulfinate is 1:1), and the amount of smooth surface is about 300g / m 2 ; Corrosion is particularly serious about 500g / m 2 ; Then the mineral oil anticorrosion tape (that is to soak t...
Embodiment 3
[0027] Example 3: Anti-corrosion coating of offshore platform node steel structure
[0028] First, sand blast the surface of the steel structure of the offshore platform node. It is required that the surface treatment of the DH36 steel structure in the construction area must meet the ISO St2 standard or above, without obvious bubbling, floating rust and marine organisms; the surface protrusions should not have sharp angles, not high 5mm, maximum not higher than 10mm; then, evenly apply petrolatum anti-corrosion paste (which is composed of mineral oil, a mixture of tannic acid and sodium benzene sulfinate, liquid paraffin and calcium carbonate according to the quality) on the surface of the treated steel structure The ratio of parts is 5:1:7:6, wherein the ratio of tannic acid to sodium benzene sulfinate is 1:1), and the amount of smooth surface is about 300g / m 2 ; Corrosion is particularly serious about 450g / m 2; Then the mineral oil anticorrosion tape (that is to soak the pe...
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