Effect of Nozzle Port Angle on Mold Surface Flow in Steel Slab Casting
(Room 311)
16 May 16
2:00 PM
-
2:30 PM
Tracks:
AHSS - Steelmaking through Finishing: Challenges & Advances, Mold Phenomena
Nozzle port angle is a critical parameter controlling fluid flow in the continuous casting mold, especially across the top surface. Calculations with a 3D k-e model and die-injection experiments on a 1/3-scale water model were performed to quantify the effects of nozzle angle on flow pattern and surface flow. Results are compared with surface velocity measurements with an electromagnetic sensor. The 15° up-angled nozzle produces more severe jet wobbling for the conditions simulated, resulting in lower velocity and higher velocity fluctuations at the surface. This could increase surface cracks, powder entrapment and associated downstream problems, especially in advanced high-strength steels.