Difference between revisions of "Conversion coatings (phosphate layer) of steel strip"
From Efficiency Finder
m (Protected "Conversion coatings (phosphate layer) of steel strip" [edit=autoconfirmed:move=autoconfirmed]) |
m (Changed protection level for "Conversion coatings (phosphate layer) of steel strip" ([edit=sysop] (indefinite) [move=sysop] (indefinite))) |
(No difference)
| |
Latest revision as of 15:56, 14 February 2013
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 |
