Steel Pipe Galvanizing
As a specialist welded pipe mill manufacturer, Wanxin is able to design, manufacture, and install a variety of hot dip galvanizing lines for steel tube. Hot dip galvanizing is a process whereby the finished black iron pipe is first cleaned of its surface, and dipped in a tank or vat of molten zinc to obtain a layer of corrosion-resistant, shiny zinc coating. With the production line, superior hot dip galvanized steel pipe can be made.
Components that make up this hot dip galvanizing equipment include the drying furnace, heating furnace, galvanizing mechanism, drawing-off roller, drawing-up mechanism, floating roller, conveyor, blower (using a combination of steam and air to dry off inside pipes), leveling mechanism, cooling water channel, spray painting system (available with rolls), letter printing system(available with rolls), blue ribbon applicator, and electrical system. This production line is suitable for handling steel pipes in 0.5 to 10 inch diameter.
Process Flow of Hot Dip Galvanizing Line
Raw material (black iron pipe)-Degreasing- Pickling-Rinsing-Applying solvents-Drying-Hot dip galvanizing- Blowing (outside pipe) -Blowing (inside pipe)-Air cooling- Water cooling-Passivation-Drying-Letter printing-Inspection-Packaging-Finished products
| Serial No. | Product Spec. (inch) | Operating Mode | Pipe Wall Thickness (mm) | Pipe Length (m) | Production Speed (m/min) | Inside Pipe Blowing | Equipment Footprint (m2) | Plant area (m2 ) |
| 1 | 1/2-2 | Double process line | 1.8-3.25 | 6 | 34-36 | Steam | 3×30 | 18× 110 |
| 2 | 1/2-4 | Single process line | 1.8-3.75 | 6-8 | Double process line 28-30 | Steam | 3×30 | 18× 110 |
| Single process line 12-15 | Guide roll | 3×30 | 18× 110 | |||||
| 3 | 3-8 | Single process line | 3.75-5.0 | 6-8 | 3-4inch 28-30 | Guide roll | 3×30 | 18× 110 |
| 5-8inch 12-15 | Guide roll | 3×30 | 18× 110 | |||||
| 4 | 6-10 | Single process line | 5.0-7.5 | 6 | 8-12 | Guide roll | 3×30 | 18× 110 |
