Synthesis Methods Of Lined Pipes: New Progress in Technological Innovation And Industrial Application
Jul 17, 2025
In the modern industrial field, lined pipes have become an important choice for industries such as chemical, energy, and environmental protection due to their excellent corrosion resistance, wear resistance, and long life. With the continuous advancement of materials science and manufacturing processes, the synthesis methods of lined pipes are also being continuously optimized to meet more stringent industrial needs. This article will explore the main synthesis technologies of lined pipes and their industry application trends.
Core synthesis technology of lined pipes
The synthesis of lined pipes usually adopts a composite process to combine corrosion-resistant or wear-resistant lining materials with high-strength base pipes. The current mainstream synthesis methods include:
Thermoplastic lining extrusion method
This method uses a high-temperature extruder to evenly extrude thermoplastic materials such as polyethylene (PE), polypropylene (PP) or polytetrafluoroethylene (PTFE) onto the inner wall of the base pipe to form a dense lining layer. Its advantage is that the lining layer is tightly combined with the base pipe, which is suitable for pipeline systems that transport corrosive media.
Powder coating sintering process
This technology first sprays metal or ceramic powder evenly onto the inner wall of the base pipe, and then melts and solidifies it through high-temperature sintering to form a high-hardness, wear-resistant lining layer. This method is particularly suitable for high-wear environments in industries such as mining and power.
In-situ solid phase penetration method (CIPP)
It is mainly used for municipal drainage pipe repair. By rolling fiber materials impregnated with liquid resin into old pipes, and then using ultraviolet rays or hot water to cure, a new lining pipe is formed. This method does not require excavation, which greatly reduces the cost of repair.
Industry application and future trends
The synthesis technology of lined pipes is developing towards high performance and environmental protection. For example, the introduction of nanocomposites has significantly improved the permeability resistance and mechanical strength of the lining layer; while the research and development of bio-based materials has promoted the green manufacturing process. In addition, the popularization of automated production equipment has further improved product consistency and reduced production costs.
As the global industrial demand for efficient and durable pipeline systems grows, the synthesis technology of lined pipes will continue to iterate and innovate. In the future, the integration of intelligent manufacturing and digital detection technology is expected to further improve product quality and production efficiency, and provide more reliable pipeline solutions for various industries.
