galvanized pipe definition
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galvanized pipe definition
The hot dip galvanized pipe is to make the reaction of the molten metal and the iron matrix alloy layer, so that both the substrate and coating combination. Hot-dip galvanizing for pickling is the first steel tube, after pickling in order to remove the pipe surface of the iron oxide through an aqueous solution of ammonium chloride or zinc chloride or ammonium chloride and zinc chloride, a mixed aqueous solution tank for cleaning, and then sent into the hot-dip plating bath. Hot galvanized coating uniformity, strong adhesion, long service life.
Cold galvanized and electro-galvanized, galvanized small amount only 10-50g/m2, its own resistance to corrosion than hot dip galvanized pipe a lot of difference. Regular galvanized pipe manufacturers, in order to ensure quality, most of them do not use electro-galvanized (cold-plated). Only small-scale, outdated equipment and small businesses using electro-galvanized, of course, their price is relatively cheap. The Ministry of Construction has officially below the phase-out of the technology behind the cold galvanized pipe, not allowed to use cold galvanized pipe for water, gas pipes.
General galvanized steel pipe are hot dip galvanized, electrically trunking with cold galvanizing, color a certain difference between
cold-plated --- only the outer wall galvanized, hot-dip - - both inside and outside plating.
galvanized pipe welded steel pipe based on hot-dip galvanized (ie zinc in zinc pot melting and then steel tube immersed in liquid zinc for a period of time to remove, then cooled drying) the steel pipe inside and outside wall layer of zinc layer attached at the same time. galvanized pipe is generally used for the delivery of low pressure fluid (ie, water, liquid, gas)
Cold galvanized and electro-galvanized, galvanized small amount only 10-50g/m2, its own resistance to corrosion than hot dip galvanized pipe a lot of difference. Regular galvanized pipe manufacturers, in order to ensure quality, most of them do not use electro-galvanized (cold-plated). Only small-scale, outdated equipment and small businesses using electro-galvanized, of course, their price is relatively cheap. The Ministry of Construction has officially below the phase-out of the technology behind the cold galvanized pipe, not allowed to use cold galvanized pipe for water, gas pipes.
General galvanized steel pipe are hot dip galvanized, electrically trunking with cold galvanizing, color a certain difference between
cold-plated --- only the outer wall galvanized, hot-dip - - both inside and outside plating.
galvanized pipe welded steel pipe based on hot-dip galvanized (ie zinc in zinc pot melting and then steel tube immersed in liquid zinc for a period of time to remove, then cooled drying) the steel pipe inside and outside wall layer of zinc layer attached at the same time. galvanized pipe is generally used for the delivery of low pressure fluid (ie, water, liquid, gas)
Standard Classification of galvanized pipe
To improve the corrosion resistance of the steel pipe, General Steel Pipe (clarinet) galvanized.
Galvanized steel pipe hot galvanized and electrical steel zinc two hot-dip galvanizing galvanizing layer thickness, the low cost of electro-galvanized.
The oxygen blowing welded pipe: used as a steel-making oxygen blowing tube, usually with a small-diameter welded steel pipe, eight kinds of specifications -2 inch by 3/8 inch. 08,10,15,20 or Q195-Q235 steel strip made. Some aluminized for corrosion prevention, treatment.
