How to protect road welded mesh fences?

How to protect road welded mesh fences?

Dipping plastic for highway fences is one of the anticorrosive methods. Nowadays, the more mature method in China is: powder dipping method, which originated from the fluidized bed method. The so-called fluidized bed was originally on a Winkler gas generator. It was applied to the contact decomposition of petroleum, and then the solid-gas two-phase contact process was developed, and it was gradually used in metal coating.

Therefore, sometimes it is still called "fluidized bed coating method". The actual process is to add powder coating to a porous and ventilated container (flow tank) at the bottom, and then send compressed air through the blower from below to make the powder coating turn to "flow". State ". It becomes a uniformly distributed fine powder.

The method of dipping is as follows: For example, the road fence or railway fence is de-oiled and preheated to the melting point of the powder coating. After immersion in the fluidized bed, the plastic powder will adhere uniformly, and then the polymer is crosslinked and leveled into steel. Plastic composite products.