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您当前的位置:首页 » News » Corrosion protection and service life of fence
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Corrosion protection and service life of fence
发布时间:2017-03-03        浏览次数:40        返回列表

Fence fence and anticorrosion of life have a great relationship, general highway fence in the life span of 10 years, some small-scale manufacturers, occupy the market with low price, in order to reduce the cost of production, gelizha shoddy, used in 3-4 years time, all can not meet the use requirements. Here we tell the majority of customers, so the purchase of railway isolation gate must choose the regular professional manufacturers, determined not to buy cheap poor quality products.

Fence is also known as: isolation fence, it is a metal mesh taut in the support structure of the fence, to prevent the human and livestock into the road sector. On both sides of the highway and the first level of the vehicle should be equipped with isolation fence. And illegal occupation of land. One of the fence anti-corrosion method: dip, now mature impregnation method is: powder impregnation method, which originated in the fluidized bed method, the fluidized bed was originally in the Winkler gas generating furnace used in petroleum and contact decomposition, developed a solid gas two-phase contact process, after gradually for the metal coated hand. I sometimes called the fluidized bed coating method, the actual process is put into a container at the bottom of the powder coating porous breathable (flow), by the blower from processed into compressed air, make the powder coating reach "flow state". Uniformly dispersed fine powder.

We know that the second phase flow of solid fluidized bed (first stage fixed bed stage, the second stage is the stage of air transportation), continue to increase the velocity based on fixed bed (W), the bed began to swell and loose, the height of bed began to increase, each powder particles float, thus leaving the original position for mobile to a certain extent, it will enter the stage of fluidized bed. BC shows that fluidized bed powder layer expansion, its height (I) increased with increasing gas velocity, but the bed pressure (P) does not increase, changes in flow rate in a certain range without affecting the unit power fluid required, the fluidized bed features, is to use the implementation of coating process a special point. The uniformity of fluidization state in fluidized bed is the key to ensure the uniformity of film. The powder coating used in fluidized bed belong to the vertical fluidization, the flow number must be found in the test, in general, can be suspended in the fluidized bed can be coated, powder rate of up to 30 ~ 50%.

The Municipal Railway fence, isolation network, bilateral fence after removing oil preheating to the melting point of powder coating, dipping into the fluidized bed after plastic powder evenly adhesion, then plasticized polymer flow Heisei plastic composite products.