Price report of new TPEP anti-corrosion steel pipe

规格：

219

壁厚：

6

长度：

12

> New anti-corrosion steel pipe price report [Feng Yihai] Anti-corrosion welded steel pipe manufacturer, our company is a large-scale professional manufacturer of thermal insulation and anti-corrosion steel pipes designated by Hebei, and has the most advanced anti-corrosion and thermal insulation steel pipe production equipment in the country. Mainly engaged in anti-corrosion steel pipes, plastic-coated composite steel pipes, non-toxic anti-corrosion pipes for drinking water, anti-corrosion steel pipes with oil and cloth, anti-corrosion steel pipes, cement mortar anti-corrosion steel pipes, plastic-coated steel pipes, plastic-lined anti-corrosion steel pipes, internal and external epoxy powder anti-corrosion steel pipes, and black jackets Polyurethane insulated steel pipes, yellow jacket insulated steel pipes, steel-clad steel steam insulated steel pipes and spiral steel pipes of various types and materials. New and old customers are welcome to visit the factory and call us for consultation!
Anti-corrosion steel pipe is a combination of polyethylene and epoxy anti-corrosion forms. It has excellent corrosion resistance, but each has its own advantages and disadvantages. Polyethylene is a thermoplastic material with good flexibility and resistance to bumps. It is a non-polar molecule that has strong adhesion to the steel pipe. Epoxy resin has poor durability. It is a polar molecule with groups that easily reacts with steel pipes at a certain temperature and has extremely strong adhesion. However, because it is a thermosetting substance, it is not resistant to bumps. Therefore, the combination of the two materials is an excellent combination in the current anti-corrosion industry. The plastic-coated steel pipe industry evolved from the earliest inner and outer polyethylene to inner and outer epoxy due to adhesion problems, but the outer epoxy layer was not resistant to bumps. Later, it developed to the third generation of inner epoxy and outer polyethylene, but a single layer of polyethylene directly There is still an adhesion problem when combined with steel pipes. It was finally upgraded to the current fourth-generation anti-corrosion inner epoxy outer three-layer polyethylene structure, which is widely used in the national West-East Gas Transmission and South-to-North Water Diversion supporting projects.
Polyethylene and epoxy resin have excellent corrosion resistance, but each has its own merits. Polyethylene is a thermoplastic material with good flexibility and resistance to bumps. Since it is a non-polar molecule, it has poor adhesion to steel pipes. Epoxy resin is polar. Molecules have groups that easily react with steel pipes at a certain temperature and have extremely strong adhesion. However, because they are thermosetting substances, they are not resistant to collisions. Therefore, the combination of the two materials is currently the best combination in the anti-corrosion industry. The plastic-coated steel pipe industry first used internal and external polyethylene. Due to poor adhesion between polyethylene and the steel pipe matrix, it later developed to internal and external epoxy. However, the outer epoxy layer was not resistant to bumps, and later developed to the third generation of internal epoxy and external polyethylene. , but there is still an adhesion problem when a single layer of polyethylene is directly combined with a steel pipe. It was finally upgraded to the current fourth-generation anti-corrosion inner hot-melt epoxy outer three-layer polyethylene structure, referred to as anti-corrosion steel pipe. Cangzhou Longdu Pipeline Co., Ltd., based on its anti-corrosion experience, introduced Russian and Japanese production technology to realize the fourth generation upgraded product of plastic-coated composite steel pipe for water supply. (The initials of three-layer English refer to polyethylene and epoxy resin). Won the national patent in 2018, won the national torch project in 2018, won the key new product in 2018, and was awarded the second prize of the Science and Technology Progress Award by the China Corrosion and Protection Society in the same year. This product filled the domestic large-diameter buried water pipes' internal and external anti-corrosion disposable film Whitespace.
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