| About this Abstract |
| Meeting |
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Symposium
|
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Presentation Title |
Slag Degassing for Electroslag Remelting using Cold Start |
| Author(s) |
Martin Detrois, Paul D Jablonski |
| On-Site Speaker (Planned) |
Martin Detrois |
| Abstract Scope |
The effect of slag degassing prior to cold start electroslag remelting (ESR) was investigated using various heat treatments of a commercial CaF2 – 30CaO – 30Al2O3 slag. The slag was either degassed in a vacuum heat treatment furnace or in a box furnace in air. Vacuum heat treatment included partial pressure of Ar gas. Several steps and holding times were investigated for each condition and the pressure was monitored for the heat treatment in the furnace with controlled atmosphere. A research scale 440 lb capacity ESR furnace was used for the experiments along with 1018 steel and 316 stainless steel electrodes. Significant differences in ingot sidewall quality were obtained and were primarily located near the bottom. Adjustments in the heat treatment time, ramp rate and temperature for heat treatment in air eventually led to a sidewall quality near those obtained using slag degassed under vacuum and/or in a controlled atmosphere. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |