HDPE steel mesh skeleton pipe is a composite pipe commonly used in modern engineering, and its corrosion resistance directly affects the service life and operation safety. To achieve long-term stable anti-corrosion effect, it is necessary to systematically control from raw material selection to process details. The specific anti-corrosion treatment process mainly includes the following key links.

First is the selection and pretreatment of raw materials. HDPE material itself has excellent chemical stability and can resist the erosion of acid and alkali, salt spray and other corrosive media; while the internal steel mesh skeleton needs to be professionally anti-rust treated, usually covered with hot-dip galvanized or polymer anti-corrosion coating to avoid steel corrosion in humid or underground environments, and build a double anti-corrosion foundation from the source.

Second is the inner wall anti-corrosion technology. The inner wall of the pipeline can be covered with an epoxy powder coating by a hot melt coating process. The coating has strong adhesion and high smoothness, which can effectively reduce the residual and initialized corrosion of the medium in the pipe, and at the same time reduce the risk of fouling and improve the pipeline transportation efficiency. In some scenarios, a socket rubber sealing ring will be combined to further enhance the sealing and corrosion resistance at the interface.

Then there are the outer wall protection measures. The outer layer of the pipeline is usually coated with high-density polyethylene (HDPE) material. This material not only has good weather resistance, but also can isolate ultraviolet rays, soil stress and microbial erosion. In order to improve the long-term anti-aging ability, additives such as antioxidants and ultraviolet absorbers will be added during production to ensure that the outer wall maintains stable protective performance when the pipeline is used in the open air or underground for a long time.

The anti-corrosion treatment of the interface is also critical. HDPE steel mesh skeleton pipes are commonly used in electrofusion connection or hot melt connection. The interface needs to be treated with special project anti-corrosion treatment: first polish and clean the connection part, then apply special anti-corrosion sealant, and finally wrap the anti-corrosion tape or heat shrinkable sleeve to form a complete sealing and anti-corrosion system to avoid corrosion due to stress concentration or medium penetration at the interface.

Finally, long-term performance guarantee. In addition to the above process, the pipeline needs to undergo strict anti-corrosion performance testing before leaving the factory, including water pressure resistance test, chemical medium immersion test, etc., to ensure that the indicators meet the standards. Through scientific anti-corrosion treatment technology, HDPE steel mesh skeleton pipes can effectively deal with corrosion problems in complex environments, providing reliable protection for fluid transportation projects in municipal, construction, agriculture and other fields.