Methods,Avoiding,The,Large,Dia business, insurance Methods Of Avoiding The Large Diameter Spiral Pipe Corrosion
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Industrial spiral pipe is easy to produce corrosion phenomenon, known as the corrosion of chemical corrosion, but, sometimes, chemical corrosion is also changing with the formation of environment or compound. You can use paint or oxidation-resistant metals (eg, zinc, nickel and chromium) plating to ensure the steel surface, but, as people know, this protection is only a film. If the protective layer is damaged, the following steel began to rust. Graphite corrosion is another example of a similar selective etching, flake graphite gray cast iron is staggered in iron-based organizations, if placed in water or soil, the more iron the anodic and cathodic graphite to the more Therefore part of the iron will corrode to form a porous appearance, so the line of gray cast iron, there must be a positive measure to prevent corrosion, if improperly laying prone to leakage or explosion event. Some metal alloy materials under special circumstances, one or more elements which are selectively filtered easily (leach) or said etching, and the residue becomes porous, thus reducing the mechanical properties of materials, such phenomenon called selective filter. This phenomenon, related to the nature of the metal, such as brass, zinc contained in the aqueous solution at high temperatures will be dissolved salts generated dezincification (dezincification) localized corrosion, and the lack of zinc position, so that the yellow copper becomes porous structure becomes very fragile.Large diameter spiral pipe corrosion resistance depends on corrosion, corrosion coal tar epoxy is one of the components, so the protection methods vary. When anti-corrosion paint material reaches strengthen levels of large diameter spiral pipe atmospheric corrosion resistance increased significantly, but higher corrosion strength, although still improve corrosion resistance, but not obvious. The reason is that with a large diameter spiral pipe corrosion of processing time for processing, the type of change has become similar to the surface oxide formed on the surface of the oxide large diameter spiral pipe metal. This large diameter spiral pipe tightly adherent protective oxide surface, preventing further oxidation. This oxide layer is very thin, it can be seen through the large diameter spiral pipe natural luster surface, so large diameter spiral pipe has a unique surface. Moreover, if the surface is damaged, the exposed surface of large diameter spiral pipe and atmospheric reactions will self-repair, re-formation of this oxide "passive film", continue to play a protective role. Therefore, all of the large-diameter spiral pipe elements have a common characteristic, corrosion prevention corrosion resistance is the best way.
Methods,Avoiding,The,Large,Dia