|About this Abstract
|2022 TMS Annual Meeting & Exhibition
|Cast Shop Technology
|Numerical and Experimental Investigation of Heat Transfer in the Solidification-deformation Zone during Twin-roll Casting of Aluminum Strips
|Olexandr Grydin, Dag Mortensen, Moritz Neuser, Dag Lindholm, Hallvard Fjær , Mirko Schaper
|On-Site Speaker (Planned)
During the twin-roll casting of strips, the heat exchange between the internally water-cooled shells and the metal has a great influence on the strip forming conditions, such as the sump depth, plastic flow, surface and centerline segregations and run-out temperature of a strip, which determine the strip quality. In this study, laboratory-scale experiments were carried out on the twin-roll casting of strips made of the aluminum alloy EN AW-6082 with simultaneous temperature measurements at the shell surface and within the solidification-deformation zone. While the shell temperature was monitored with an infrared camera, a 0.5 mm diameter shell thermocouple was passed through the solidification-deformation zone after the thermal steady state was reached. Subsequently, a finite element numerical model of the laboratory-scale twin-roll casting trial was developed. An angle dependent heat transfer coefficient was fitted to the experimental results, thereby indicating a spatial resolution of the heat transfer at the aluminum-shell interface.
|Planned: Light Metals