Hot DIP Galvanized Steel Pipe Steel Pipe For High Tunnel
Agricultural Greenhouse
Product Description
Hot dip galvanized steel pipe is widely used in construction,
machinery, coal mine, chemical industry, railway vehicles,
automobile industry, highway, bridge, container, sports facilities,
agricultural machinery, petroleum machinery, exploration machinery
and other manufacturing industries. Hot dip galvanized or
galvanized welded steel pipe on the surface of galvanized steel
pipe. Galvanizing can improve the corrosion resistance and prolong
the service life of steel pipe. Galvanized pipes are widely used,
not only for water, gas, oil and other general low-pressure fluid
pipelines, but also for oil well pipes, oil pipelines in the
petroleum industry, especially for offshore oil fields, oil heaters
of chemical coking equipment, condensing pipes of coolers, etc. hot
galvanized pipes such as coal distillation and wash oil heat
exchanger, trestle pile, mine roadway support and support pipe
react molten metal with iron matrix to generate alloy Layer, so
that the substrate and coating combined. Hot galvanizing is the
first pickling of steel pipes. Clean the ammonium chloride or zinc
chloride solution or the mixed solution tank of ammonium chloride
and zinc chloride, and then send it to the hot-dip tank. Hot dip
galvanizing has the advantages of uniform coating, strong adhesion
and long service life. A layer of zinc iron alloy with corrosion
resistance and close structure is formed by complex physical and
chemical reaction between the base of hot-dip galvanized steel pipe
and the deposition solution. The alloy layer is combined with pure
zinc layer and steel pipe base. Therefore, it has strong corrosion
resistance.
Advantage
The thickness of hot-dip galvanized layer is large, the coating is
uniform, the adhesion is strong, and the service life is long. Low
cost of galvanizing,
Production Step
| 1 | Preparation of round steel |
| 2 | Heating |
| 3 | Hot rolling perforation |
| 4 | Cutting head picking |
| 5 | Grinding |
| 6 | Lubrication |
| 7 | Cold rolling processing |
| 8 | Degreasing |
| 9 | Solution heat treatment |
| 10 | Straightening and cutting |
| 11 | Picking |
| 12 | Inspection of finished products |
