The anti-corrosion strategy of the fence has a great influence on the use period of the fence. The number of years of use of the guardrail highway network is generally about ten years. Some small producers meet customer needs at low prices. In order to save investment costs, the production of isolation barriers is relatively poor, and the duration of use is also three to four years. It is impossible to consider the use of standards at all. Here we inform our corporate customers, so when choosing a fence, you must choose a formal professional manufacturer, and never eager to buy inferior products.
Fences are also known as barriers. It refers to a fence made of metal mesh tightly, which can prevent people or animals from entering the border of the highway. The fluidized bed is the second part of the liquid flow. In the fixed bed reactor, the flow rate (W) basically continues to increase, the bed layer starts to swell and loosen, and each particle floats upward, so to a certain extent Leave the original position. Then enter the fluidized bed stage. The bc section shows that the height of the powder layer in the fluidized bed (i) increases with the increase of gas velocity, but the pressure in the fluidized bed (p) does not increase. The characteristic of the fluidized bed is to change the flow rate within a certain range without affecting the unit power required by the fluid. The uniformity of the fluidization of the powder is the key to the uniformity of the coating.
One of the specific anti-corrosion methods of the fence is the dipping method. At present, the more complete concrete impregnation method in China is the powder impregnation method, which is derived from the fluidized bed method. The gas generator selects the fluidized bed commonly used for oil contact dissolution, and then develops a solid-gas two-phase contact processing technology, which is slowly used in metal coatings. So it is sometimes called “fluid bed coating method”. The actual process is to add powder coating to the bottom porous infiltration container (flow tank), and send the treated compressed air from the fan to make the powder coating slide above the “fluidized state”. It becomes a uniformly dispersed fine powder. Railway fences, municipal fences, and bilateral wire fences are heated to the melting point of the powder coating after degreasing and heating, and the plastic powder will be evenly distributed and adhered to the fluidized bed, and then plasticized polymers cross flow to make steel plastic Composite products.
Post time: May-12-2020