One of the methods of anti-corrosion is the dipped impregnation method of hook-and-roll fences. The current domestic practice is: powder impregnation method, which originated from the fluidized bed method. The so-called fluidized bed was originally developed at the Winkler gas generator. Applied to oil contact decomposition, and then developed a solid-gas two-phase contact process, and gradually used for metal coating. Therefore, it is sometimes called "fluidized bed coating method". The actual process is to add powder coating into the bottom porous and gas-permeable container (flowing tank). Blower blows the treated compressed air from below to make the powder coating turn to flow. State." Become evenly distributed fine powder.
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