Manufacturer of 3pe reinforced anti-corrosion straight seam steel pipe for oil transportation spiral steel pipe

Description :

　　The 3PE anti-corrosion (three-layer polyethylene) process is an advanced anti-corrosion technology introduced from abroad in the late 1990s. Its full name is fusion bonded epoxy/extruded polyethylene structural protective layer. 3PE anti-corrosion technology combines the excellent performance of epoxy coating and extruded polyethylene anti-corrosion layer, combining the interface characteristics and chemical resistance of epoxy coating with the mechanical protection characteristics of extruded polyethylene anti-corrosion layer, thus significantly improving their respective performance. Its characteristics include high mechanical strength, wear resistance, corrosion resistance, heat resistance, cold resistance, and can be used for processing up to 15. In order to prevent accidents such as personal injury and loss of property caused by the transportation of flammable and certain fluids, the spiral steel pipe factory adopts corresponding process standards, continuously meets important functional operations, and ensures quality and safety in the testing and measurement process for use in the market. 3PE anti-corrosion pipelines are usually produced through rolling forming, high-frequency welding, extrusion, cooling, sizing, and flying saw cutting. Adapt to cold regions in 0-degree media. Therefore, 3PE anti-corrosion coating is an ideal external protective layer for buried pipelines.

　　According to departmental testing, use 3PE, highway and other cable protection sleeves. Suitable for high-rise building water supply, heating network, water supply engineering, gas transmission, buried water transmission and other pipelines. Process pipelines for transporting corrosive media in industries such as petroleum transportation, chemical manufacturing, and printing and dyeing. Anti corrosion engineering for sewage treatment discharge pipes, sewage pipes, and biological tanks. Agricultural irrigation pipes, deep well pipes, drainage pipes, and other networks are used for various purposes. To address the issue of corrosion prevention,. The service life of buried pipelines with anti-corrosion technology can reach up to 50 years. 2PE anti-corrosion (two-layer polyethylene) pipeline with two-layer PE anti-corrosion structure, the first layer of adhesive (AD), the second layer of polyethylene (PE), the two materials are integrated, and the thickness of each layer is the same as that of the three-layer PE From this, it can be seen that the difference lies in the addition of an epoxy powder layer for 3PE anti-corrosion. Epoxy powder has good corrosion resistance, mechanical properties, and strong resistance to cathodic stripping. Although it has the advantages of strict surface treatment, poor weather resistance, and high water absorption rate, it is suitable for buried pipelines and submarine pipelines. The coating thickness is only 0.3-0.5 millimeters, and the service life can reach 40-50 years.

　　The price of 3PE anti-corrosion straight seam steel pipe is globally recognized as the most effective and high-performance pipeline anti-corrosion coating. The bare pipe is subjected to medium frequency heating for shot blasting and rust removal. After rust removal inspection, it is heated again and sprayed at a certain temperature. Powder coating is first applied, followed by adhesive coating, and polyethylene coating is used. Strictly conduct spray inspection. With the large-scale promotion and use of 3PE coatings, the matching joint materials have also rapidly developed. Applied in many engineering projects. Our factory has an internationally advanced steel pipeline anti-corrosion operation line and specialized equipment for metal structure anti-corrosion and insulation. 3PE anti-corrosion steel pipe anti-corrosion is divided into three layers from inside to outside. The first layer of pipeline anti-corrosion is as follows: the task of the steel pipe layer is to select seamless pipe spiral welded pipe and straight seam welded pipe according to the intention and customer's request. After being treated with advanced rust removal technology, the steel pipe rust removal can reach Sa2 level within the scope. The precision polyethylene three-layer structure anti-corrosion steel pipe has good insulation performance and heat loss only 25% of traditional pipes. Long term operation can still save relatively large resources, significantly reduce energy costs, and still has strong waterproof and corrosion resistance. It does not need to attach pipe trenches, and can be directly purchased underground or in water for construction. But if the water is cut off or the heating water is supplied, the degree of corrosion is still quite severe.

　　Co polymer adhesive is actually a 3PE anti-corrosion adhesive with adhesive, which can effectively prevent leakage. Anti corrosion structure of the elbow sleeve: The outer surface of the elbow is wrapped with high-density polyethylene material, which has extremely high mechanical strength and excellent corrosion resistance, and can protect the elbow from damage caused by external factors during transportation, installation, and use. Manufacturing outer sleeves should be added. The product of polyethylene grafted with polyacrylic anhydride should be more appropriately referred to as graft adhesive; The current industry standard 2 is the issue of contamination of the inner layer hot melt adhesive. The adhesive in three-layer PE has the advantages of strong adhesion, high water absorption, and resistance to cathodic peeling. Moreover, it can be extruded together with the protective layer polyethylene during construction, which is convenient for construction. Third layer (protective layer): Polyolefin, such as low-density polyethylene, high/medium density polyethylene, or modified polypropylene (PP). The general thickness is 1.8-3.7mm, or the thickness may be increased according to the special requirements of the project. Pipes (steel pipes) are used in different working environments to slow down or prevent. Among them, there are only four indicators for copolymer adhesive, which cannot fully reflect the processing performance of the adhesive. At least two indicators, tensile strength and elongation at break, should be added to ensure the processing performance of the adhesive.

　　Made using double-sided automatic submerged arc welding or single-sided welding method for water. Gas, also known as petroleum and natural gas industry transportation steel pipes, delivery technical conditions: steel pipes (graded steel pipes with strict requirements up to now) (American Petroleum Institute, also known as pipeline steel pipes, divided into PSL and PSL grades), spiral welded steel pipes for piles. The service life of buried pipelines using PE anti-corrosion technology can reach up to 0 years. Many people only know one thing about the use of PE anti-corrosion steel pipes and do not know the other. Its function is to cover a wide range of surfaces, and it is suitable for underground water supply and drainage in coal mines. PE anti-corrosion steel pipes for natural gas, which are well-known in anti-corrosion operations, also play a significant role in operations. Today, we will discuss the relevant knowledge about PE anti-corrosion steel pipes

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• Spiral steel pipe for oil transportation