HOW TO AVOID SPIRAL PIPE CORROSION

All metal and atmospheric oxygen in the reaction, formed in the surface oxide film. Unfortunately, in the ordinary carbon steel formed on the oxidation of iron oxide to continue, kept expanding rust, eventually forming holes. Can use paint or resistant to oxidation of the metal (for example, zinc, chromium and nickel) on plating to ensure that the surface of carbon steel, but, as we know, the protection is only a thin film. If the cover was damaged, the following steel began to rust.

Large diameter spiral pipe corrosion resistance depends on the corrosion protection of epoxy coal tar is one of the anticorrosive part, so the protection method is not the same.

In anti-corrosion paint material to strengthen level, large diameter spiral steel atmospheric corrosion resistance increased significantly, but the corrosion intensity is higher, although still can improve the corrosion resistance, but not obvious. Reason is that with corrosion on large diameter spiral steel pipe processing processing, change the type of surface oxide became similar to that of large diameter spiral steel tube on the surface of oxide is formed on the metal. This tight adhesion of large diameter spiral steel pipe surface oxide protection, to prevent further oxidation. This kind of extremely thin oxide layer, you can see on the surface of the large diameter spiral pipe through natural luster, make the surface of the large diameter spiral steel pipe has a unique. And, if damaged surface, exposed by the large diameter spiral steel tube surface and atmospheric response to repair itself, to form the oxide “passivation membrane,” continued protection.

Therefore, all large diameter spiral pipe elements have a common feature, corrosion resistant corrosion prevention is the best way.