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Summary of the knowledge of steel-lined plastic pipes
Steel-lined plastic pipes are known by various names in different industrial settings and market environments. They are commonly referred to as plastic-lined pipes, lined steel pipes, or steel-plastic composite pipes. Despite the multiple names, their production process and performance characteristics remain largely consistent. These pipes typically consist of a carbon steel pipe as the base material, with a thermoplastic layer that offers excellent chemical resistance. This inner lining is applied through cold drawing or rotational molding, combining the mechanical strength of steel with the corrosion resistance and low scaling tendency of plastic. Additionally, they are less prone to microbial growth, making them highly suitable for a wide range of applications.
One of the key factors in pipe design is determining the appropriate wall thickness based on the specific operating conditions and requirements. This parameter directly influences the cost-effectiveness and overall performance of the product. Steel-lined plastic pipes are particularly well-suited for transporting aggressive media such as acids, alkalis, salts, and corrosive gases. The inner plastic lining is integrally formed without any welding joints, eliminating common issues seen in other materials like PP (polypropylene), which may have poor flexibility. This design ensures greater reliability, durability, and safety.
These pipes can withstand high temperatures and pressures while avoiding thermal expansion-related problems due to the compatibility between the steel and plastic layers. As a result, they are widely used in chemical plants, power stations, water treatment facilities, and sewage systems where corrosion resistance is critical. Their long service life and superior performance make them an ideal choice for industries seeking efficient and durable piping solutions.
In terms of application, steel-lined plastic pipes offer great versatility and are becoming increasingly popular in modern infrastructure projects. Choosing high-quality steel-lined plastic pipes ensures not only operational efficiency but also long-term cost savings. By combining the best attributes of both steel and plastic, these pipes provide a reliable and sustainable solution for demanding environments.
Source: http://news.chinawj.com.cn
Editor: Hardware Business Network Information Center