What are the main pieces of equipment used to manufacture 3PE-coated steel pipes?
Release time:
2022-03-28
3PE anti-corrosion steel pipes in China are manufactured according to the SY/T standard, which came into effect on August 1, 2002. The primary standard specifications include polyethylene and high-density polyethylene, with a Vicat softening temperature of no less than 110°C. The thickness of the external anti-corrosion layer is determined based on the German standard DIN, and low-density and medium-density polyethylene are mainly used. This significantly enhances the impact resistance of the 3PE anti-corrosion coating. The SY/T standard substantially improves both the peel strength and impact resistance of the 3PE anti-corrosion layer, explicitly stipulating that the carbon black content in certain special materials must be controlled to ensure the mechanical strength and weather resistance of the 3PE coating. Additionally, it increases the peel strength at joints—specifically, the bond strength between heat-shrink sleeves and heat-shrink tapes.
3PE anti-corrosion steel pipe The SY/T standard has been implemented domestically since August 1, 2002. The primary standard specifications are polyethylene and high-density polyethylene, with a Vicat softening temperature of no less than 110°C. The thickness of the external anti-corrosion layer is determined according to the German standard DIN, and low-density and medium-density polyethylenes are mainly used. This has significantly improved the impact resistance of the 3PE anti-corrosion coating. The SY/T standard substantially enhances both the peel strength and impact resistance of the 3PE anti-corrosion layer, explicitly stipulating that, depending on the carbon black content of certain special materials, the mechanical strength and weather resistance of the 3PE anti-corrosion layer must be ensured. Additionally, the sampling frequency for testing the peel strength of joints has been increased.
3PE anti-corrosion steel pipes were first widely used in Europe and have since gained great popularity among users, becoming the most widely adopted pipeline coating system. Many people are only aware of one application of 3PE anti-corrosion steel pipes but are unaware of another—its functional coverage is truly extensive. It is suitable for various pipeline systems including underground water supply and drainage, underground grouting, positive and negative pressure ventilation, gas extraction, fire sprinkler systems, and more. It’s also ideal for process water, waste residue, and return water pipelines in thermal power plants. Moreover, it exhibits excellent compatibility with pipelines supplying water to spray systems and automatic sprinkler fire suppression systems. Additionally, it serves as protective casing for cables in power, telecommunications, and highway projects. This type of pipe is appropriate for high-rise building water supply systems, district heating networks, municipal water supply projects, gas transmission lines, and buried water pipelines. It’s also used for process pipelines transporting corrosive media in industries such as petroleum, chemical pharmaceuticals, and textile dyeing. Furthermore, it’s employed in sewage treatment and discharge pipelines, sewer systems, and anti-corrosion projects for biological ponds. Applications extend to agricultural irrigation pipes, deep-well pipes, drainage pipes, and other network systems. In short, 3PE anti-corrosion steel pipes have become indispensable in today’s construction projects, and we believe that with further advancements in technology, they will achieve even greater success in the future.
The main equipment used in the manufacture of 3PE anti-corrosion steel pipes includes: a steel pipe buffer platform, a pipe-moving unit, a traction machine, a pipe-pushing machine, a repair platform, a conveyor line, a steel pipe preheating furnace, a primary inspection platform for shot blasting machines, a segmented steel pipe return conveyor line, a high-speed roller assembly, high-speed rollers, and an inspection platform, among others. The steel pipe anti-corrosion production line can be applied to single-layer FBE, double-layer FBE, double-layer PE, double-layer PP, and 3PE anti-corrosion operations for steel pipes. The production line comprises a steel pipe conveying system, a surface treatment system, a pipeline dust removal system, a steel pipe heating system, an electrostatic spraying system, a coating system, a water-cooling system, an end-cutting system, a hydraulic and pneumatic system, an inspection system, and an electrical control system, among other components.
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