Introduction of inner plastic steel pipe

Test items which should be carried out of the inner drag-reducing coatings mainly have production testing and laboratory testing two categories. Production testing refers to the pinholes testing, dry film thickness detection, bending testing, adhesion testing, cure test and immersion detection of the sampling during the coating process. Before manufacturing, the laboratory testing of the coatings quality should be preceded with the prepared spray specimen in the lab, and the projects are salt spray test, the immersion test, the peeling test, bending test, adhesion test, hardness test, the test pressure foaming , wear testing and pressure foaming test and so on.

The inner plastic steel pipe has excellent corrosion resistance, and its resistance to environmental stress cracking test is more than 1000h; good wear resistance coating; coating is smooth and not mixed with bacteria and fungi, has an effective anti-wax, scale effect, and with good health performance; water resistance coefficient is small, water capacity increased by more than 10% compared to the quantity of galvanized steel pipe. External galvanized steel pipe can both ensure the corrosion resistance in the atmosphere, and maintain the advantages of galvanized steel easy to buckling set, easy to install, bump-resistant, easy to transport, resistance to mechanical abrasion, and surface looking good. The outside galvanized and inside plastic coating steel pipe owns the internal and external advantages of coated steel pipe and galvanized steel pipe, can be used as petrochemical, water supply, electricity and other sectors of water, gas and other media transportation pipeline.