In today's industrial field, the issue of pipeline corrosion protection has always been an important topic. In order to solve this problem, many manufacturers and researchers have adopted various methods. Among them, a new type of anti-corrosion steel pipe, a diameter of 478 epoxy polyethylene anti-corrosion steel pipe, has attracted much attention because of its excellent anti-corrosion performance and a wide range of application fields. Outer polyethylene inner epoxy plastic-coated steel pipe
1. The structure of the inner epoxy outer polyethylene anticorrosive steel pipe.
Diameter 478 inner epoxy outer polyethylene anticorrosive steel pipe is a new type of anticorrosive steel pipe, which is composed of an inner layer of epoxy resin and an outer layer of polyethylene. The structural design of this steel pipe effectively solves the problem of pipeline anti-corrosion, making it have excellent anti-corrosion performance and durability.
2. The advantages of inner epoxy outer polyethylene anticorrosive steel pipe.
1.Excellent anti-corrosion properties.
The inner epoxy outer polyethylene anticorrosive steel pipe is made of epoxy resin and polyethylene, which has excellent corrosion resistance, weather resistance and aging resistance. It can effectively prevent the erosion of acids, alkalis, salts and other chemicals, and prolong the service life of the pipeline.
2.Good environmental performance.
No harmful substances are used in the production process of inner epoxy outer polyethylene anticorrosive steel pipe, so there is no pollution to the environment. At the same time, the use of such steel pipes does not have a negative impact on the environment.
3.Excellent mechanical properties.
The inner epoxy outer polyethylene anticorrosive steel pipe has good strength and toughness, and can withstand greater pressure and impact. In addition, this type of steel pipe is lightweight, making it easy to transport and install.
4.Wide range of applications.
The inner epoxy outer polyethylene anticorrosive steel pipe is suitable for oil, natural gas, chemical industry, urban water supply and drainage and other fields. It can not only be used for the anti-corrosion of new pipelines, but also for the repair and renewal of old pipelines.
3. The production process of inner epoxy outer polyethylene anticorrosive steel pipe.
1.Steel pipe pretreatment.
Before the production of inner epoxy outer polyethylene anticorrosive steel pipes, the steel pipes need to be pre-treated. First of all, it is necessary to remove the oil, rust, oxide scale and other impurities on the surface of the steel pipe to ensure the adhesion of the coating. Then, the steel pipe needs to be heated to relieve the stress inside it and prevent it from deforming during the production process.
2.Coating preparation.
The preparation of the coating of the inner epoxy outer polyethylene anticorrosive steel pipe includes two steps: the preparation of the epoxy resin coating and the preparation of the polyethylene coating. First of all, raw materials such as epoxy resin and curing agent need to be mixed evenly in a certain proportion, and then they are coated on the surface of the pretreated steel pipe, and then heated and cured to form an epoxy resin coating. Next, a polyethylene coating is applied to the surface of the epoxy resin coating, which is heated and melted to form a polyethylene coating.
3.Coating inspection.
After the coating has been prepared, it needs to be inspected. The integrity and quality of the coating is checked through visual inspection, thickness measurement, adhesion testing, and other methods. If a defect or quality problem is found, the coating needs to be repaired or remanufactured.
4.Finished product inspection and packaging.
After the production is completed, the finished product inspection of the inner epoxy outer polyethylene anticorrosive steel pipe is required. The appearance and quality of the steel pipe are inspected through visual inspection, pressure test and other methods. If the test is qualified, the steel pipe needs to be packed for transportation and storage. The packaging is generally made of materials such as plastic film and wooden frame to ensure that the steel pipe is not damaged and kept clean.
IV. Conclusions. As a new type of anti-corrosion steel pipe, the diameter 478 inner epoxy outer polyethylene anti-corrosion steel pipe has the advantages of excellent anti-corrosion performance, good environmental protection performance and excellent mechanical properties. At the same time, its advantages of simple production process, high production efficiency and low cost also make it have broad application prospects in the market. It is believed that with the continuous development and improvement of technology, this kind of anti-corrosion steel pipe will be applied and promoted in more fields.