Steel mesh skeleton plastic (PE) composite pipe
Steel mesh skeleton plastic (PE) composite pipe, also known as steel wire mesh-reinforced polyethylene composite pipe, is an advanced type of pressure pipe. It combines the strength of steel and the corrosion resistance of plastic, making it suitable for a wide range of applications.
Structure and Manufacturing Process
The pipe consists of three layers: an inner PE layer, a steel mesh reinforcement layer, and an outer PE layer. The inner and outer layers are made of high-density polyethylene (HDPE) or PE80/PE100 grade material, while the middle layer is composed of high-strength steel wire mesh. The manufacturing process involves extruding the inner PE layer first. Then, a layer of hot-melt adhesive is applied, followed by winding the steel wire mesh around it. Another layer of hot-melt adhesive is added, and finally, the outer PE layer is extruded. This multi-step process ensures the steel mesh is fully encapsulated by the PE layers, creating a strong bond between the materials.
Product Features
High Strength and Stiffness: The steel mesh reinforcement significantly enhances the pipe's strength and stiffness, allowing it to withstand high internal pressures and external loads. It also has a low linear expansion coefficient and excellent creep resistance, similar to steel pipes.
Excellent Corrosion Resistance: The inner and outer PE layers provide outstanding corrosion resistance, protecting the pipe from chemical attacks in various environments. This makes it ideal for transporting corrosive fluids and for use in harsh soil conditions.
Good Impact Resistance: The combination of steel and plastic gives the pipe excellent impact resistance, making it less susceptible to damage during handling and installation, especially in low-temperature environments.
Smooth Inner Surface: The inner PE layer is smooth, reducing friction and minimizing the risk of scaling. This results in lower head loss and higher flow efficiency compared to traditional steel pipes.
Long Service Life: With a design life of over 50 years, the pipe offers excellent long-term performance and durability.
Easy Installation: The pipe is lightweight and can be connected using electrofusion fittings. The connection process is simple and reliable, ensuring a strong and leak-proof joint.
Application Fields
Municipal Engineering: Widely used for urban water supply, gas supply, fire protection systems, and drainage systems.
Chemical Industry: Suitable for transporting acids, alkalis, salts, and other corrosive chemicals in chemical, petrochemical, and pharmaceutical plants.
Oil and Gas Industry: Used for oil and gas transmission, water injection, and chemical fluid conveyance in oilfields and gas fields.
Power Industry: Applied in power plants for conveying process water, wastewater, and other fluids.
Mining Industry: Used for transporting slurry, tailings, and ventilation in mines.
Agriculture and Irrigation: Ideal for agricultural irrigation systems and water supply in rural areas.
Advantages Over Traditional Pipes
Compared to traditional steel pipes and pure plastic pipes, steel mesh skeleton plastic composite pipes offer several advantages:
Overcoming Weaknesses: The composite structure effectively addresses the shortcomings of steel pipes (prone to corrosion) and plastic pipes (limited strength), combining the advantages of both materials.
Enhanced Performance: The pipe exhibits superior strength, stiffness, and impact resistance, while maintaining good flexibility. This makes it more adaptable to different environmental conditions and engineering requirements.
Cost-Effective: Although the initial cost may be slightly higher than traditional pipes, its long service life, low maintenance requirements, and reliable performance make it a cost-effective solution in the long run.
In summary, steel mesh skeleton plastic (PE) composite pipe is a high-performance pipe material with broad application prospects. Its excellent combination of strength, corrosion resistance, and ease of installation makes it an ideal choice for various engineering projects across different industries.