Sea spray splash zone corrosion protection corrosion prevention solution and protection method thereof

A technology for corrosion protection and spray splash, which is applied in the field of corrosion protection anti-corrosion solution and its protection in the spray splash area, can solve problems such as corrosion of steel facilities, and achieve the effects of low cost, increased service life, good sealing and protection performance

Inactive Publication Date: 2012-05-23
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiency of multi-layer cladding anti-corrosion technology research under the existing conditions, and solve the problem of serious corrosion of steel facilities in the spray splash area to provide a low-cost, convenient construction, good sealing and impact resistance, long-term A kind of anti-corrosion liquid for corrosion protection in spray splash zone and protection method thereof

Method used

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  • Sea spray splash zone corrosion protection corrosion prevention solution and protection method thereof

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Comparison scheme
Effect test

Embodiment 1

[0022] In the present invention, the surface treatment of the sample is carried out, and the anti-corrosion solution is prepared and optimized. The cotton and linen cloth is immersed in the anti-corrosion solution to fully infiltrate to form an inner layer of anti-corrosion tape, and the inner layer of anti-corrosion tape is wound on the surface of the protected body. , adjust the middle layer adhesive and fully infiltrate the cloth to form the middle layer of anti-corrosion tape, wind the middle layer of anti-corrosion tape on the inner layer of anti-corrosion tape, and finally paint a protective layer on the middle layer of anti-corrosion tape, or use glass fiber reinforced plastics as Outer protective layer.

[0023] The specific operation is as follows:

[0024] 1. Surface treatment: Polish the rust on the surface of the steel material with sandpaper. If the steel material is a new piece that has not been corroded, you only need to remove the dirt on the surface.

[0025]...

Embodiment 2

[0035] 1. Surface treatment: Polish the rust on the surface of the steel material with sandpaper. If the steel material is a new piece that has not been corroded, you only need to remove the dirt on the surface.

[0036] 2. Deployment and optimization of anti-corrosion solution:

[0037] At first a kind of corrosion inhibitor with higher corrosion inhibition rate is synthesized by chemical reaction, synthetic raw material and method are as follows: triethanolamine (analytical pure): phosphoric acid (analytical pure): defoamer 550 for solvent-based paint is 46 by mass ratio :32:0.2.

[0038] Heat triethanolamine in a constant-speed and constant-temperature glass reactor with a stirring speed of 118r / min to 120°C with a constant-temperature oil-water bath; then slowly add phosphoric acid to triethanolamine while stirring, and keep the temperature at 130°C for reaction 3 Hours; Finally, leave to cool to obtain a thick, transparent red product. Then add paint defoamer 550.

[0...

Embodiment 3

[0045] 1. Surface treatment: Polish the rust on the surface of the steel material with sandpaper. If the steel material is a new piece that has not been corroded, you only need to remove the dirt on the surface.

[0046] 2. Deployment and optimization of anti-corrosion solution

[0047] At first a kind of corrosion inhibitor with higher corrosion inhibition rate is synthesized by chemical reaction, synthetic raw material and method are as follows: triethanolamine (analytical pure): phosphoric acid (analytical pure): defoamer 550 for solvent-based paint is 40 by mass ratio :30:0.2.

[0048] Heat triethanolamine to 140°C in a constant-speed and constant-temperature glass reactor with a stirring speed of 118r / min; then slowly add phosphoric acid to triethanolamine while stirring, and keep the temperature at 130°C for reaction 3 Hours; Finally, leave to cool to obtain a thick, transparent red product. Additive Paint Defoamer 550 is then added.

[0049] Taking out these red fini...

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Abstract

The invention relates to a corrosion protection method, in particular to a sea spray splash zone corrosion protection corrosion prevention solution and a protection method thereof. The sea spray splash zone corrosion protection corrosion prevention solution comprises epoxy glue, a compound type corrosion inhibitor and zinc powder, the mass ratio of the epoxy glue to the zinc powder is equal to (1-4.6) : (2-9), the concentration of the compound type corrosion inhibitor in the corrosion prevention solution reaches 0.1-1.8g / L; the compound type corrosion inhibitor comprises a corrosion inhibitorand zinc dihydrogen phosphate with a mass ratio of 3: (0.1-1); and the corrosion inhibitor comprises triethanolamine, phosphoric acid and an additive with a mass ratio of (23-46) : (22-32) : (0.1-1).The invention is suitable for corrosion prevention protection on a steel material used in a sea spray splash region, thus service life of the steel material is prolonged.

Description

technical field [0001] The invention relates to a corrosion protection method, in particular to an anticorrosion liquid for corrosion protection in a spray splash zone and a protection method thereof. Background technique [0002] Iron and steel materials will be severely corroded in the marine environment, and corrosion will cause huge damage and loss. According to the differences in the corrosion of steel materials in different locations in the ocean, the marine environment can be divided into five zones: the marine atmosphere zone, the spray splash zone, the tidal range zone, the full immersion zone and the submarine mud zone. Among the five zones, there are differences in corrosion behavior, but the spray splash zone is the zone where steel facilities are most severely corroded in the marine environment (annual average corrosion rate is 0.2-0.5 mm). Therefore, it is necessary to protect the steel materials used in the spray splash zone against corrosion. At present, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/08C23F15/00
Inventor 黄彦良陈君侯保荣
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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