Conversion coatings (phosphate layer) of steel strip
From Efficiency Finder
Back to EFFICIENCY FINDER FOR METAL INDUSTRY
- Typical parameters of the process
| Process | Temperature [°C] | Chemicals | Residence time | Details | Literature |
| Phosphating | 40 | hopeite crystal Zn3(PO4)2. 4H20 | Solution is circulating in a closed loop | BAT for the surface treatment of metals & plastics, 2006 | |
| Phosphating iron+steel | 70-100 | Zn (14 g/l), P2O5 (9,5 g/l), NO3 (21 g/l), freies P2O5 | 3-20 min | BAT for the surface treatment of metals & plastics, 2006 |
