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Wear-resistant and high temperature-resistant powder coating for preventing corrosion of inside and outside of steel pipeline

A technology of powder coating and high temperature resistance, applied in powder coatings, anti-corrosion coatings, pipelines to prevent damage/wear, etc., can solve the problems of corrosion and damage of steel pipes, increase production costs, damage anti-corrosion layers, etc., to save maintenance costs and improve anti-corrosion , the effect of high temperature resistance

Active Publication Date: 2010-12-01
HEILONGJIANG EAIEN NEW MATERIAL TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the friction of the sucker rod of the oil production pipe, the friction of the fine sand brought up by the natural gas in the gas production pipe, the impact of the high pressure water flow in the high pressure water injection pipe and the high temperature cleaning pipe, the anticorrosion layer is seriously damaged, and the steel pipe is corroded and damaged, requiring frequent replacement and maintenance , which brings a lot of inconvenience to the construction of the oil field, and also increases the production cost, which becomes a difficult problem in the construction of the oil field.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1. First, epoxy resin E-1262kg, WT800 pure silicone resin 20kg, amine-terminated rubber resin 10kg, phenolic curing agent 22kg, leveling agent acrylate polymer 13kg, 2-methylimidazole 0.6kg , 2.0kg of dibutyl phthalate, 0.6kg of benzoin, 5kg of titanium dioxide, 14kg of silicon carbide, 25kg of wollastonite powder, 3kg of sericite, 3kg of graphite, and 2.0kg of phthalocyanine green are put into a high-speed mixing agitator and stirred twice (2min / time), after mixing, put the material into the bag and send it to the extruder for extrusion (the temperature of the extruder body is set to: 95±3°C in zone 1, 116±3°C in zone 2), and the tablet is 1~2mm The flakes are air-cooled and crushed into small pieces, and then milled and screened through 100 mesh to get the finished powder.

[0013] Test results: Appearance: smooth surface, uniform color, no bubbles, no cracks, no shrinkage cavities; adhesion (95±2°C, 24h): level 1; 10J impact resistance: no pinholes; 24h catho...

Embodiment 2

[0014] Embodiment 2. First, epoxy resin E-1268kg, WT800 pure silicone resin 15kg, amine-terminated rubber resin 10kg, phenolic curing agent 15kg, leveling agent acrylate polymer 10kg, 2-methylimidazole 0.6kg , 1.5kg of dibutyl phthalate, 0.6kg of benzoin, 5kg of titanium dioxide, 20kg of silicon carbide, 35kg of wollastonite powder, 5kg of sericite, 5kg of graphite, and 2.0kg of carbon black are put into a high-speed mixing agitator and stirred twice (2min / time), after mixing, put the material into the bag and send it to the extruder to extrude (the temperature of the extruder body is set: 95±3°C in zone 1, 116±3°C in zone 2), and the tablet is 1.5~2mm The flakes are air-cooled and crushed into small pieces, and then milled and screened through 100 mesh to get the finished powder.

[0015] Test results: appearance: smooth surface, uniform color, no bubbles, no cracks, no shrinkage cavities; adhesion (95±2°C, 24h): level 1; 10J impact resistance: pinholes; 24h cathode peeling: ...

Embodiment 3

[0016] Embodiment 3. First, epoxy resin E-1260kg, WT800 pure silicone resin 10kg, amine-terminated rubber resin 6kg, phenolic curing agent 15kg, leveling agent acrylate polymer 8kg, 2-methylimidazole 0.6kg , 0.6kg of dibutyl phthalate, 0.6kg of benzoin, 5kg of titanium dioxide, 20kg of silicon carbide, 30kg of wollastonite powder, 2kg of sericite, 3kg of graphite, and 2.0kg of carbon black are put into a high-speed mixing agitator and stirred twice (2min / time), after mixing, put the material into the bag and send it to the extruder to extrude (the temperature of the extruder body is set: 95±3°C in zone 1, 116±3°C in zone 2), and the tablet is 1.5~2mm The flakes are air-cooled and crushed into small pieces, and then milled and screened through 100 mesh to get the finished powder.

[0017] Test results: appearance: smooth surface, uniform color, no bubbles, no cracks, no shrinkage cavities; adhesion (95±2°C, 24h): level 1; 10J impact resistance: no pinholes; 24h cathodic peeling...

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Abstract

The invention discloses a wear-resistant and high temperature-resistant powder coating for preventing corrosion of inside and outside of a steel pipeline. The coating comprises the following components in part by weight: 60 to 80 parts of epoxy resin E-12, 10 to 20 parts of WT800 pure organic silicon resin, 8 to 10 parts of terminal amino group rubber resin, 18 to 24 parts of phenol curing agent, 0.6 to 0.8 part of catalyst 2-methylimidazole, 10 to 16 parts of leveling agent acrylicpolymer, 0.6 to 0.8 part of defoaming agent, 10 to 15 parts of titanium dioxide, 20 to 40 parts of silicon carbide, 15 to 30 parts of wollastonite powder, 2 to 4 parts of sericite, 3 to 5 parts of graphite, 3 to 5 parts of pigment and 2 to 4 parts of dibutyl phthalate. The coating has the advantages of excellent anticorrosion effect, and high wear-resisting property and resistance to high temperature, and is an anti-corrosive material with a simple and convenient anti-corrosive process and low cost.

Description

Technical field: [0001] The invention relates to an anti-corrosion coating for steel pipelines in oil fields, in particular to an anti-corrosion powder coating for inner and outer anti-corrosion of steel pipelines with wear resistance and high temperature resistance. Background technique: [0002] At present, in the construction of various oil fields in China, there are many materials used for internal and external anti-corrosion of steel pipelines, but there are few anti-corrosion materials for coatings that are wear-resistant, high-temperature and anti-corrosion. Especially for the application of oil production, gas production, and high-pressure water injection pipelines in oil fields, there are few suitable anti-corrosion coatings. Due to the friction of the sucker rod of the oil production pipe, the friction of the fine sand brought up by the natural gas in the gas production pipe, the impact of the high pressure water flow in the high pressure water injection pipe and t...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D183/00C09D115/00C09D7/12C09D5/08C09D5/03F16L58/10F16L57/06
Inventor 孟鋆辉
Owner HEILONGJIANG EAIEN NEW MATERIAL TECH DEV CO LTD
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