About plastic coated steel pipe and galvanized pipe

Plastic coated steel pipe：

  Plastic-coated steel pipe is a new type of green and environmentally friendly pipe, and its specific properties can make it a new favorite in the pipe industry in just over ten years. First of all, from the point of view of merchants, no matter it is plastic pipe or galvanized steel pipe, no one will focus on unprofitable commodities again without more profits. Therefore, this is also A major reason for the rapid development of plastic-coated steel pipes. Secondly, from the customer’s point of view, whether in terms of product characteristics or application functions, compared with plastic pipes and galvanized steel pipes, customers prefer the application value brought by plastic-coated steel pipes. The implementation standard of the fire sprinkler system water supply plastic-coated steel pipe products is “automatic sprinkler system fire-extinguishing system coated steel pipe”. The cost-effective product greatly improves the use value of the system, and this product extends the fire water supply and automatic sprinkler piping system. service life.

Galvanized steel pipes：

  Galvanized steel pipes are divided into cold galvanized steel pipes and hot-dip galvanized steel pipes. Cold galvanized steel pipes have been banned. Hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in the tank of ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the in the hot dip bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The hot-dip galvanized steel pipe substrate undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate, so it has strong corrosion resistance. Hot-dip galvanized pipes have a wide range of applications in fire protection, power and highways.