3PE seamless anticorrosive steel pipe factory inspection unqualified factors

It is thought that everyone understands that 3PE seamless anticorrosive steel pipe refers to the seamless steel pipe that carries out the anticorrosive process, and can reasonably prevent or slow down the chemical or electrochemical corrosion and its etching condition in the transportation and use of carbon steel pipes.

Inspection of 3PE seamless anticorrosive steel pipe factory-leaving

The thickness of the coating at the welding gap is not symmetrical, and after the spiral welding of 3PE seamless anti-corrosion steel pipe is shaped, the coating is prone to thin or tear at the welding gap.

The degree of welding gap is higher than the standard degree of production. When the extrusion die of the same width covers the seamless steel pipe, the coating in the welding gap area is thin, and the accumulation of residual ground stress is reduced by refrigeration, and the heat storage level in the welding gap area is large.

The remaining heat energy stored in the welding gap area after refrigeration is set is heated again by thermal conduction, resulting in a decrease in the compressive strength of the coating.

The appearance is convex, and the protective layer is convex, which is not only a phenomenon that damages the appearance, but also shows that the adhesive force of the protective layer and the seamless steel pipe is low, and the occurrence of the bulge is caused by the water in the coating cooling and setting link.

After cooling, the waste heat inside the seamless steel pipe becomes soft at the coating point, and the coating begins to be cooled in the cooling process to reduce the shape. At this time, the surface of the water-drop cooling effect has been solidified, and the molten plastic is disconnected from the solidified plastic under the reduction of ground stress, and the plastic itself expands to form a bulge.

3pe anticorrosive steel pipe characteristics

The use of polyethylene material, this material is characterized by its good corrosion resistance, directly extend the service life of anti-corrosion steel pipe, and 3pe anti-corrosion steel pipe molecular weight, good stability, good aging resistance, under normal working temperature and pressure, the service life can be guaranteed more than 50 years, which is much better than the performance of similar pipes.

Steel pipe corrosion resistance, high stability, it can resist the corrosion of various transportation materials, and can improve the stability of transportation, and polyethylene is a polymer material, very stable. Whether it is microorganisms or other substances, it will not have any degradation effect on 3pe anti-corrosion steel pipe.

With excellent impact resistance and seismic performance, and with high temperature adaptability, 3pe anti-corrosion steel pipe can be used in the temperature range of 60-80, the uneven settlement of the pipeline foundation has a strong adaptability, during the winter construction period, due to the material has good impact resistance, the pipeline will not become brittle