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Vertical tube turning machine

Prestressed Concrete Cylinder Pipe (PCCP) is a composite pipe composed of concrete and steel cylinder, which overcomes the shortcomings of poor corrosion resistance of steel pipes and poor impermeability of concrete pipes, and not only has The advantages of steel pipes and concrete pipes, but also some new advantages.

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　　Prestressed Concrete Cylinder Pipe (PCCP) is a composite pipe composed of concrete and steel cylinder, which overcomes the shortcomings of poor corrosion resistance of steel pipes and poor impermeability of concrete pipes, and not only has The advantages of steel pipes and concrete pipes, but also some new advantages.

　　The PCCP pipe wall is composed of four parts: concrete pipe core, steel cylinder, high-strength prestressed steel wire and mortar protection layer. The inner or outer surface of the concrete pipe core has a thin steel cylinder with precision-processed joint steel rings welded at both ends. The concrete pipe core (the inner lining type is a steel cylinder) is spirally wrapped with high-strength prestressed steel wires, and there is a dense cement mortar protective layer outside the prestressed steel wires. The prestress is applied by winding the prestressed steel wire, so that the ability of PCCP to withstand internal and external pressure is greatly increased; with a steel lining, it can not only completely impermeability, but also improve the axial strength and increase the hoop strength; steel joints using tolerance fit And the rubber ring constitutes an effective sealing effect to ensure the tightness of the joint; steel components such as steel cylinders and steel wires are buried in concrete and mortar to ensure lasting and effective protection.

　　Due to the superior performance of PCCP pipes that are difficult to compare with other pipes, it is widely used as raw water transmission pipes and water supply pipes in municipal and irrigation projects, and is also widely used in factory piping systems, seawater, circulating cooling systems and pressure sewage pipes, Underwater water intake pipes and underwater outfall pipes can also be used as inverted siphon pipes, tunnel lining and pipe jacking pipes. At present, the pipe turning machine is roughly divided into two types, one is the horizontal pipe turning machine, and the other is the hoisting type pipe turning machine. The use of the pipe turning machine can greatly improve the efficiency of turning the pipe and ensure that the anti-corrosion layer on the pipe surface is not damaged. damaged.

　　At present, most horizontal pipe turning machines on the market use four cylinders, that is, four hydraulic cylinders cooperate to perform pipe turning and reset the supporting bracket of the pipe turning machine after turning the pipes. The structure is complex and the cost is high.

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Double station mandrel host

Vertical tube turning machine

Prestressed Concrete Cylinder Pipe (PCCP) is a composite pipe composed of concrete and steel cylinder, which overcomes the shortcomings of poor corrosion resistance of steel pipes and poor impermeability of concrete pipes, and not only has The advantages of steel pipes and concrete pipes, but also some new advantages.

Vertical tube turning machine

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