| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
Removal efficiencies of Hydrogen and inclusions in a combined filter with de-gassing and CFF |
| Author(s) |
Terje Haugen, Arild Hakonsen |
| On-Site Speaker (Planned) |
Terje Haugen |
| Abstract Scope |
In-line removal of dissolved Hydrogen and inclusions is today standard practice in aluminium DC-casting lines. The conventional setup is a de-gasser followed by a CFF filter-box for inclusion removal. Sometimes more physical filters for inclusion removal may be used downstream the CFF filter. This setup requires a lot of footprint (space) and represents a high cost for the casthouse. To reduce the required footprint, and to reduce the capex and opex of melt treatment a multi-filter is developed. In this filter de-gassing is done in the same unit as the CFF-plates are mounted.
In this paper the measured removal efficiencies for Hydrogen and inclusion are shown for different configurations. A reduction of metal height in the de-gassing chamber from 950 to 600mm did not reduce the efficiency of Hydrogen removal. Co-current flow gave lower removal efficiency of Hydrogen compared to counter-current flow. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Extraction and Processing, |