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With the continuous development of modern industry, anti-corrosion steel pipes have been widely used in various fields. As one of them, buried three-layer polyethylene anti-corrosion steel pipe has become one of the preferred materials for pipeline anti-corrosion because of its excellent anti-corrosion performance and long service life. This article will give a detailed introduction and analysis of the buried three-layer polyethylene anticorrosive steel pipe.
1. Definition and characteristics of buried three-layer polyethylene anticorrosive steel pipe.
The buried three-layer polyethylene anti-corrosion steel pipe is a kind of pipe treated by special technology, and its surface is coated with a three-layer polyethylene anti-corrosion layer, which has good anti-corrosion performance and long service life. Compared with the traditional anti-corrosion steel pipe, the buried three-layer polyethylene anti-corrosion steel pipe has the following characteristics:
1.Excellent anti-corrosion performance: The three-layer polyethylene anti-corrosion layer can effectively resist the corrosive media in the soil, such as acid, alkali, salt, etc., thus prolonging the service life of the pipeline.
2.Good mechanical properties: The polyethylene anticorrosive layer has good elasticity and toughness, which can effectively resist external extrusion and friction, and ensure the integrity of the pipeline.
3.Convenient construction: The installation and construction of buried three-layer polyethylene anticorrosive steel pipe is very convenient, does not require special tools and equipment, and can effectively shorten the construction period.
4.Eco-friendly material: Polyethylene is a non-toxic, odorless and environmentally friendly material, which will not cause pollution to the environment.
Second, the production process of buried three-layer polyethylene anticorrosive steel pipe.
The production process of buried three-layer polyethylene anticorrosive steel pipe mainly includes the following steps:
1.Steel pipe pretreatment: pretreatment such as rust removal and oil removal is carried out on the steel pipe to ensure that its surface is clean and dry.
2.Bottom coating: A layer of epoxy powder is coated on the surface of the steel pipe to form a dense anti-corrosion layer.
3.Intermediate adhesive layer: A layer of adhesive is coated on the epoxy powder anti-corrosion layer to play a bonding role.
4.Outer polyethylene layer: A polyethylene layer is applied to the adhesive layer to form an outer protective layer.
5.Cooling and curing: The coated steel pipe is cooled and solidified to ensure the stability and durability of the anti-corrosion layer.
3. The application range of buried three-layer polyethylene anticorrosive steel pipe.
Buried three-layer polyethylene anticorrosive steel pipes are widely used in the following fields:
1.City gas engineering: As a transmission pipeline of city gas, it needs to have good anti-corrosion performance and long service life. Buried three-layer polyethylene anticorrosive steel pipes can meet these requirements and can effectively prevent gas leakage and corrosion.
2.Petrochemical industry: In the petrochemical industry, pipelines are often exposed to various corrosive media, such as acids, alkalis, salts, etc. The buried three-layer polyethylene anticorrosive steel pipe can effectively resist these corrosive media and ensure the safety and stability of the pipeline.
3.Hydraulic engineering: In hydraulic engineering, pipelines need to withstand large water pressure and soil pressure. The buried three-layer polyethylene anticorrosive steel pipe has excellent mechanical properties and durability, which can ensure the normal operation and service life of the pipeline.
4.Sewage treatment engineering: In sewage treatment engineering, pipelines are often exposed to various corrosive and polluting substances. The buried three-layer polyethylene anticorrosive steel pipe has good anti-corrosion performance and environmental protection, which can ensure the long-term stable operation of the pipeline.
5.Other fields: In addition to the above fields, buried three-layer polyethylene anticorrosive steel pipes can also be used in ships, ports, electric power and other fields, with a wide range of application prospects.
Fourth, summary. In this paper, the buried three-layer polyethylene anticorrosive steel pipe is introduced and analyzed in detail, including its definition and characteristics, production process, application scope, etc. As a pipeline material with excellent anti-corrosion performance and long service life, buried three-layer polyethylene anti-corrosion steel pipe has been widely used in various fields and has a wide range of application prospects. In the future, with the continuous development of science and technology, the performance and application fields of buried three-layer polyethylene anticorrosive steel pipes will be more extensive and diversified.