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Category Cars
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Created 2019-03-25
Owner juniperqq
Title Characteristics Of Steel Coil
Description The zinc layer on the surface of China aluminum zinc steel coil prevents the corrosive medium from contacting the steel substrate, thereby preventing the steel substrate from being corroded. The corrosion resistance of the zinc layer is that it has a very thin oxide film to block air. Even if part of the zinc layer falls off, anodic protection can be performed by forming a local micro battery on the steel substrate. Therefore, China aluminum zinc steel coil can be used for a long time in a dry environment. This is because when the zinc substrate is exposed to a single portion of the steel substrate since the electrode potential of zinc is lower than the electrode potential of iron, a zinc-iron micro battery is formed. At this point, zinc loses electrons and is oxidized, while iron does not corrode.
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