Method and apparatus for removing plated metal from steel sheet scraps
US5350438A · kind A · utility
6Cited by
5References
21Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S266/901
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Metal plated steel sheet scraps are heated to a temperature in the range of about 200.degree. C.-500.degree. C. so that organic material adhered to the scraps is evaporated and removed. Then, the scraps from which organic material has been removed are heated to a temperature in the range of about 500.degree. C.-950.degree. C. so that the plated metal, for example zinc or aluminum, is evaporated. The evaporated metal flows to a retrieving device where the evaporated metal is condensed and retrieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.