2pe anti-corrosion steel pipe manufacturer

Anti-corrosion steel pipe manufacturer Tianze Pipeline is a large-scale anti-corrosion steel pipe manufacturer in Hebei (sales hotline). The anti-corrosion steel pipes produced by our company are the most trustworthy in the Chongqing anti-corrosion steel pipe market. Anti-corrosion steel pipe standards, anti-corrosion steel pipe production processes, anti-corrosion layer thickness etc., we also produce anti-corrosion steel pipes, reinforced anti-corrosion steel pipes, special anti-corrosion steel pipes for natural gas, and anti-corrosion steel pipes for natural gas transmission. Welcome to call us for inquiries. B Epoxy Powder Anti-corrosion Implementation/"Technical Standard for Fusion Epoxy Powder Outer Coating of Steel Pipes"
Tianze Pipeline Equipment Company is located in Cangzhou City, Hebei Province. It is the largest and most competitive anti-corrosion steel pipe manufacturer in Cangzhou City. With years of experience in steel pipe anti-corrosion production, it is the designated supplier of PetroChina and a key enterprise in Hebei Province! It is a governing unit of China Anti-corrosion and Insulation Industry Association. The company was founded in , with an annual production capacity of 10,000 square meters. The main products include drinking water epoxy resin anti-corrosion steel pipes, anti-corrosion steel pipes, cement mortar lined anti-corrosion steel pipes, polyurethane directly buried insulation pipes, epoxy resin anti-corrosion steel pipes, epoxy coal pitch anti-corrosion steel pipes and multi-insulation steel pipes.
Anti-corrosion steel pipe: Two-layer anti-corrosion structure of the pipe, the first layer of adhesive (D), the second layer of polyethylene, the two materials are integrated, and the thickness of each layer is the same as the third layer
Standard: / Buried Steel Technical Standards for Polyethylene Anti-corrosion Coatings for Pipes
Technical Standards for Polyethylene Anti-corrosion Coatings for Buried Steel Pipes
/Anti-corrosion Execution/(Test) "Technical Standards for Polyethylene Outer Coatings for Buried Steel Pipes"
Usage Anti-corrosion steel pipe base materials include spiral pipes, straight seam pipes, seamless pipes, etc., which are widely used in pipeline projects such as petroleum, chemical industry, natural gas, heat, sewage treatment, water sources, bridges, steel structures, marine water transmission piling, etc. field.
High-density polyethylene jacket anti-corrosion structure: The outer surface of the steel pipe is wrapped with high-density polyethylene material. It has extremely high mechanical strength and excellent corrosion resistance, and can protect the steel pipe from corrosion during transportation, installation and use. Damage caused by external factors. Antioxidants, UV stabilizers and carbon black should be added to the outer casing. The polyethylene outer casing is easy to age. If it is stored in the open air, it should be covered with a tarpaulin. The stacking place should be away from high heat and fire sources. After being made into anti-corrosion steel pipes, it is prohibited to be exposed to the sun or quenched. Otherwise, the polyethylene outer casing will easily crack and affect the product. performance and longevity.
Through a review of the annual application history of polyethylene anti-corrosion layers in Europe, although corrosion or stress corrosion cracking can theoretically occur under the peeling off anti-corrosion layer, there has been no case of subfilm corrosion or stress cracking under the peeling off anti-corrosion layer. . At the Mannesmann Institute in Germany, long-term corrosion laboratory experiments have been conducted to simulate the effect of anti-corrosion layer application. The corrosion experiment environment includes soil and water. The test mainly examines the problem of stress corrosion cracking. The experimental anti-corrosion is to place the defective polyethylene anti-corrosion layer steel pipe under corrosion conditions and stress conditions. The corrosion environment is a sandy soil environment containing H, and the temperature is ℃. The pipe-to-ground potential is ~m, the surface of the steel pipes is pretreated in different ways, and all steel pipes are circulated under pressure. At the end of the experiment, there was more or less peeling around the defects in the anti-corrosion layer, but no corrosion was found in the peeling area. Steel pipes without oxygen scale on the surface are prone to stress cracking. Steel pipes with oxide scale are cracked. The cracks are m deep and may be caused by stress corrosion. It is concluded that thorough surface preparation is an effective means of preventing stress cracking.
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