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How to do anti-corrosion measures for steel parts?

2023-12-11


Whether the anti-corrosion work of the steel parts can be done well will play a vital role in the project, which will not only affect the quality of the whole project, but also affect the progress of the project.

Whether the anti-corrosion work of the steel parts can be done well will play a vital role in the project, which will not only affect the quality of the whole project, but also affect the progress of the project. Under normal circumstances, if you can pay attention to anti-corrosion, the service life can reach 50 years, so how should you do a good job in anti-corrosion measures?

Add anti-corrosion coating to the inner wall of the 1.: in order to prevent corrosion of the steel pipe, reduce friction resistance and improve throughput, a film can be coated on the inner wall of the steel pipe. Commonly used coatings are amine-cured epoxy resin and polyamide epoxy resin, and the coating thickness is 0.038~0.2mm. In order to ensure that the coating is firmly bonded to the pipe wall, the inner wall of the pipe should be surface treated.

Add insulation coating to the outer wall of the 2.: in order to reduce the loss of heat during the use of the steel pipe, a layer of insulation coating can be added to the outer wall. The commonly used insulation coating material is rigid polyurethane foam, and the applicable temperature is -185~95 ℃. This material is soft in texture. In order to improve its strength, a layer of high density polyethylene layer is added to the insulation layer to form a composite structure to prevent groundwater from penetrating into the insulation layer.

In fact, the application range of steel pipe is relatively wide, it is mainly applicable to the construction of equipment pipeline in industrial buildings. During the construction process, the steel pipe will have inner wall corrosion and outer wall corrosion under electrochemical action. According to the form of pipeline corrosion, it can also be divided into overall corrosion and local corrosion. According to the corrosion process of the pipeline, it can be divided into chemical corrosion and electrochemical corrosion. In order to improve the corrosion resistance of steel pipes, it is usually necessary to carry out anti-corrosion treatment on the pipes before use. At the same time, attention should be paid to reducing the concentration of corrosive medium in the pipes as much as possible to prevent the corrosion degree of steel pipes from deepening.

In addition, the selection of anti-corrosion materials is also very important in the anti-corrosion treatment of steel pipes, which is directly related to the quality of pipeline anti-corrosion. Therefore, in the anti-corrosion treatment, the appropriate anti-corrosion materials must be selected to ensure the anti-corrosion effect. Generally, the anti-corrosion materials used in anti-corrosion of steel pipes are mainly as follows:

1.3PE anti-corrosion material. This kind of anti-corrosion material is mainly polyethylene and polypropylene, of course, it can also be replaced by epoxy resin anti-corrosion material, through the use of epoxy resin composite coating, phenolic epoxy coating and polymer composite materials for anti-corrosion treatment of steel pipe.

2. Epoxy coal tar anticorrosive materials, this kind of anticorrosive materials are mainly selected from asphalt anticorrosive coatings and polypropylene non-woven fabrics; if the requirements for anticorrosive treatment are not very strict, cement mortar can also be selected to carry out anticorrosive treatment of steel pipes through cement mortar sealing.

3. Malt steel pipes can also be treated with anti-corrosion winding tape. This tape generally includes polyethylene anti-corrosion tape, polypropylene reinforced fiber anti-corrosion tape and aluminum foil anti-ultraviolet anti-corrosion tape.

Key words:

Masteel

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