TPEP anti-corrosion steel pipe for water supply and drainage anti-corrosion pipeline

Description :

　　TPEP anti-corrosion steel pipes are much cheaper than stainless steel pipes and slightly higher than carbon steel pipes. Therefore, as an external protective layer for buried pipelines, it is very superior. According to relevant information, three-layer PE can extend the lifespan of buried pipelines and is currently considered the most effective external anti-corrosion technology for pipelines internationally. The connection of pipes can be carried out using high-frequency hot melt method, which is convenient for construction. Carbon steel pipe body can enhance the tensile strength of the pipe body, and the role of reinforced fiber plastic pipe is to increase the bending section moment of the structural pipe, improve the bending resistance of the structural pipe, and protect the carbon steel from corrosion by external media. Decorative protective film protects plastic pipes, improving wear resistance and surface smoothness. The grid structure composed of it has a beautiful and elegant appearance, a lightweight structure, and is economical, and can be applied in decoration, advertising stands, and greenhouse structures. Before bonding the mother material spiral steel pipe in TPEP anti-corrosion steel pipe, the socket side and the outer side of the socket should be wiped with a dry cloth. When there is oil stains on the surface, it must be wiped clean with acetone.

　　The inspection method for TPEP anti-corrosion steel pipes for drainage is to measure or inspect through some physical phenomena, usually using non-destructive testing. Non destructive testing includes ultrasonic testing, radiographic testing, penetrant testing, magnetic testing, etc. Strength inspection of pressure vessels: In addition to conducting sealing tests, strength tests must also be conducted on pressure vessels. TPEP anti-corrosion steel pipes inherit the advantages of both steel pipes and plastic pipes, while eliminating their respective shortcomings. One of the important contents in the design of TPEP anti-corrosion steel pipes is to reasonably determine the wall thickness of the pipe according to the usage conditions and requirements, and this parameter directly affects the cost-effectiveness of the product. The TPEP anti-corrosion steel pipe internal expansion tool includes a core shaft fixed connection part and a movable connection thrust extrusion part. The core shaft fixed connection part includes a core shaft, a shaft end locking nut, a fixed claw fixedly connected to the core shaft, at least two pull rods fixedly connected to the top of the fixed claw and the bottom of the bottom seat, and a steel base; The compression and thrust parts of the active connection include end baffles, rubber ring blocks, upper and lower hard rubber gasket rings, and tail baffles that are sequentially mounted on the core shaft along the axial direction, thrust claws, as well as thrust claw reset springs and jacks.

　　The TPEP anti-corrosion steel pipe shaped structural component for drainage is composed of a carbon steel pipe body. The carbon steel pipe body is equipped with a reinforced fiber plastic pipe body, and the outer surface of the plastic pipe body is covered with a decorative protective film. The composite of carbon steel pipe body and reinforced fiber plastic pipe body can be bonded by adhesive method, and the decorative protective film is covered on the outer layer of the plastic pipe body through color printing transfer technology. TPEP anti-corrosion steel pipes are much cheaper than stainless steel pipes and slightly higher than carbon steel pipes. Therefore, as an external protective layer for buried pipelines, it is very superior. According to relevant information, three-layer PE can extend the lifespan of buried pipelines and is currently considered the most effective external anti-corrosion technology for pipelines internationally. The connection of pipes can be carried out using high-frequency hot melt method, which is convenient for construction. Carbon steel pipe body can enhance the tensile strength of the pipe body, and the role of reinforced fiber plastic pipe is to increase the bending section moment of the structural pipe, improve the bending resistance of the structural pipe, and protect the carbon steel from corrosion by external media. Decorative protective film protects plastic pipes, improving wear resistance and surface smoothness. The grid structure composed of it has a beautiful and elegant appearance, a lightweight structure, and is economical, and can be applied in decoration, advertising stands, and greenhouse structures.

　　The inner wall of the spiral steel pipe used for drainage is prone to rusting when treating sewage. Our factory has applied several layers of epoxy coal tar anti-corrosion paint on the surface of the steel pipe to prevent corrosion. The first step in anti-corrosion treatment with epoxy coal tar is to remove rust, clean the surface of the steel pipe, and apply anti-corrosion paint, which is a special paint for surface treatment. Epoxy coal tar anti-corrosion steel pipe steel surface * * oil stains, it is better to use sandblasting to remove rust to a low level of Sa2 according to GB/T8923, and to achieve Sa21/2 level. When construction conditions are limited, tools can also be used to remove rust to level st3. After the steel surface treatment is qualified, the primer must be applied as soon as possible before rusting (normally within 8 hours, when the relative humidity of the air exceeds 80%, the primer should be applied immediately). The water content in the 20mm surface layer of concrete is less than 6%, and there is loose material, presenting a smooth and solid surface. In general, ordinary anti-corrosion measures are used, such as trench pipelines, insulation pipelines, inner and outer walls of storage tanks, irregular metal components, concrete surfaces, etc; For directly buried pipelines, reinforced grade should be selected; For situations with harsh corrosive environments or difficult maintenance, special anti-corrosion measures should be selected, such as crossing pipelines, underwater pipelines, tank bottoms, etc.

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