Year1
- 材质：
- q235
Galvanized pipe ready supply , consultation phone number
/WeChat: Manager Tang
Hot-dip galvanized pipe
/Hot-dip galvanized steel pipe
The molten metal reacts with the iron matrix to produce an alloy layer, thereby making the matrix and Plating combines both. 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 an aqueous solution of ammonium chloride or zinc chloride or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to in a hot dip plating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion, and long service life. Most of the processes in the north adopt the zinc-replenishing process of direct coiling of galvanized strips.
The steel pipe matrix undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a tight structure. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, it has strong corrosion resistance.
Cold-dip galvanized pipe
/Cold-dip galvanized steel pipe
Cold-dip galvanizing is electro-galvanizing. The amount of galvanizing is very small, only /, and its corrosion resistance is much different than that of hot-dip galvanized pipes. . Regular galvanized pipe manufacturers, in order to ensure quality, most do not use electro-galvanizing (cold plating). Only small businesses with small scale and old equipment use electro-galvanizing, and of course their prices are relatively cheaper. In the future, cold-dip galvanized pipes are not allowed to be used as water and gas pipes.
The zinc layer is an electroplated layer, and the zinc layer is layered independently from the steel pipe matrix. The zinc layer is thin, and the zinc layer simply adheres to the steel pipe matrix and falls off easily. Therefore, its corrosion resistance is poor. In new residential buildings, it is prohibited to use cold-dip galvanized steel pipes as water supply pipes.
Galvanized steel pipe production process:
Black parts inspection&rrr hanging material&rrr degreasing&rrr rinsing&rrr pickling&rrr cleaning&rrr dipping aid&rrr hot air drying&rrr hot dip galvanizing&rrr internal and external blowing&rrr cooling&rrr Passivation and rinsing&rrr unloading&rrr inspection, trimming&rrr typing and marking&rrr packaging, warehousing and transportation.
Galvanized strip&rrr uncoiling&rrr stretching&rrr coiled tube&rrr welding&rrr scraping&rrr passivation and rinsing&rrr zinc supplement&rrr shaping&rrr typing logo&rrr cutting&rrr packaging&rrr drying&rrr weighing.
Hunan Gerunde Pipe Industry
Galvanized pipe spot specifications and dimensions:
Nominal wall thickness.
Coefficient.
Steel grade: B
Test pressure value/:..is..is.
Theoretical weight table and formula of galvanized pipe
Theoretical weight formula of galvanized pipe: (diameter wall thickness) wall thickness.*.= weight per meter (kg/m)
Specifications
Wall thickness
Specifications
Wall thickness
Specifications
Wall thickness
Specifications
Wall thickness
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Changsha Galvanized pipe price_hot-dip galvanized national standard steel pipe specifications and dimensions_galvanized welded pipe wholesale, Hunan Gerunde Pipe Industry Co., Ltd. (contact number/WeChat: ) supplies hot-dip galvanized steel pipe, national standard galvanized pipe, thin-walled galvanized wire pipe , cold galvanized pipe, greenhouse galvanized pipe, galvanized welded pipe, galvanized straight seam pipe, galvanized seamless steel pipe. Complete range of specifications and large quantities available from stock. Consultation
Tel
/WeChat:
Manager Tang
.
Grunde galvanized steel pipe
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