Development Of 3PE Anticorrosive Steel Pipe In China

China’s annual natural gas use gap is more than 1 billion cubic meters, causing such problems because there is not enough pipeline to transport. At the same time, China’s 3PE anti-corrosion steel pipe manufacturing country loves tens of thousands of kilometers per year. If the disadvantages of transporting natural gas pipelines and 3PE anti-corrosion steel pipes are combined, not only will the natural gas gap be compensated, but also the production of domestic anti-corrosion steel pipes can be further improved. In the long run, the establishment of a mechanism for establishing natural gas transmission pipelines in China has been broken, and 3PE anti-corrosion steel pipes will be superior to seamless steel pipes as transportation pipelines.

The electric resistance welded pipe was first used in the gas pipeline anti-corrosion project. It was used in the natural gas transmission project in 1994, and the amount is relatively large with a length of more than 60 kilometers. For a large project at the time, it was obvious that the design and construction personnel at that time were full of confidence in the construction of so many 3PE anti-corrosion steel pipes for such a large project at that time. The use of 3PE anti-corrosion steel pipe for many years has not been disappointing to those who have trusted it. The quality of the product has stood the test and there has been no worrying leakage. From this project, 3PE anti-corrosion steel pipe as a gas pipeline anti-corrosion product has made its own name. In the subsequent many natural gas transmission projects, more and more people prefer it. I believe it will not be disappointing.

The maximum temperature at noon every day in summer is about 40 °C. The 3PE anti-corrosion steel pipe indicates that the temperature of pe increases when the coating PE is exposed to sunlight, and the memory effect of pe produces a contraction internal stress, which acts on the bare The side of the bead will produce a force to peel off the bead. As the thickness of the PE increases, this force also increases. When the angle between the bead and the tube end is larger, the force on the shoulder of the bead is maximized. At this time, the powder can be separated from the surface of the steel to form a warp.

There is a special 3PE anti-corrosion steel pipe in Erhot, which is an important hub connecting Mongolia and Russia. It continuously supplies natural gas from Russia to Mongolia and China. The main channel for economic and trade cooperation with Mongolia and an important platform for economic and trade cooperation with Russia is also an important node of the Silk Road Economic Belt. The new natural gas contract signed with Russia this year has been launched. It is believed that a new 3PE anti-corrosion steel pipe conveying pipeline connecting Eurasia promotes national unity and social harmony and stability in the border areas.

The service life of 3PE anti-corrosion steel pipe depends to a large extent on the anti-corrosion of steel pipe. The use of good coating materials and coating methods can make the pipeline life reach several decades or longer. Heavy-duty anti-corrosion and fusion epoxy powder coatings can be divided into powder for spraying in pipelines, powder for spraying outside pipelines, powder for oil drilling pipes, and powder for anticorrosion of 3-layer structure. The sintered epoxy powder coating in 3PE anti-corrosion steel pipe is generally composed of synthetic resin, curing agent (in thermosetting powder coating), pigment, filler and auxiliary materials, so it is very important to select these materials.

The three-layer structure polyethylene anti-corrosion layer combines the excellent properties of epoxy coating and extruded polyethylene anti-corrosion layer, the interface characteristics and chemical resistance of epoxy coating, and the mechanical protection characteristics of extruded polyethylene anti-corrosion layer. The advantages are combined to significantly improve their performance. Therefore, it is very advantageous as an outer protective layer of a buried pipeline.

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