Chain link fence anticorrosion method
Whether it is green or galvanized Chain link fence, Chain link fence package for plastic is one of the anti-corrosion methods.
Domestic relatively mature approach
Whether it is green or galvanized Chain link fence, Chain link fence package for plastic is one of the anti-corrosion methods.
Domestic relatively mature approach is: plastic coated powder method, it originated in the fluidized bed method, called fluidized bed was originally furnace used in the oil contact decomposition in Winkler gas occurrence, and developed a solid gas two-phase contact process, after gradually for the metal coated. So sometimes still called "fluidized bed coating method, the practical process is the powder coating is added to a porous permeable at the bottom of the container flow channel), by the fans from the fed through the process of compressed air, the powder coating turning to" stream ". Fine powder with uniform distribution.
We know that the fluidized bed is the second phase of the solid state (for the first phase of the fixed bed stage and the second stage air conveying stage), on the basis of fixed bed continue to increase in flow velocity (W), the bed began to swell and loose, bed height began to increase, each powder particle is floating, and left the original location for a certain degree of movement, then enter the stage fluidized bed. BC, shows that fluidized bed powder layer expansion, its height (I) with the increase of gas velocity increased, but in the bed pressure (] P) does not increase, in a certain range changes in velocity and does not affect the fluid unit power. This is characteristic of fluidized bed, it is using this feature to the implementation of the coating process. The uniformity of fluidization state of powder in a fluidized bed is the key to guarantee the uniformity of coating film. Used in powder coating on the fluidized bed belongs to vertical fluidized, fluidization number required after tests find, generally to coating, the powder in the fluidized bed suspension rate up to a maximum of 30 ~ 50%.
Green Chain link fence or galvanized Chain link fence wrapping plastic method is as follows: for example: Chain link fence after degreasing preheated to powder coating melting point above, dipping to fluidized bed plastic powder uniformly adhesion and plasticization of polymer flow Pingcheng steel plastic composite products.
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