The base material of 3PE anti-corrosion steel pipe includes seamless steel pipe, spiral steel pipe and straight seam steel pipe. Three layer polyethylene, 3PE anti-corrosion coating has been widely used in the oil pipeline industry for its good corrosion resistance, water vapor permeability resistance and mechanical properties.
3PE is generally composed of three layers of structure:
First layer:Epoxy powder (FBE > 100um)
Second layer:Adhesive (AD) 170-250um
Third layer:Polyethylene (PE) 2.5-3.7mm
In the actual operation, the three materials are mixed and integrated, which are processed to be firmly combined with the steel pipe to form an excellent anti-corrosion coating. The processing method is generally divided into two types: winding type and circular mold covering type.
Advantages of 3PE anti-corrosion steel pipe:
1.3PE anti-corrosion steel pipe has a very high sealing performance, which can greatly save energy, cost and give good protection in long-term operation;
2. 3PE anti-corrosion steel pipe has strong corrosion resistance. If the construction company strictly follows the process,the service life of 3PE anti-corrosion steel pipe can reach 30-50 years;
3. 3PE anti-corrosion steel pipe also has good corrosion resistance and impact resistance at low temperature. The water absorption of PE is low (less than 0.01%);
4. At the same time, 3PE anti-corrosion steel pipe has high epoxy strength, low water absorption of PE and good hot-melt adhesive, and has high corrosion resistance reliability.
5. 3PE anti-corrosion steel pipe has high mechanical strength, wear resistance, corrosion resistance, heat resistance and cold resistance. It can be used in 150 ℃ medium and can be used in cold zone.
3PE anti-corrosion steel pipe is widely used. The general purpose 3PE anti-corrosion steel pipe is rolled by common carbon structural steel, low alloy structural steel or alloy structural steel. 3PE anti-corrosion steel pipe is mainly used as the pipeline or structural parts for conveying fluid.
