Parametric Investigation of Interfacial Heat Transfer and Behavior of the Melt Puddle in Planar Flow Casting Process by Numerical Simulation

Thermal Deformation Analysis of the Rotating Roller in Planar Flow Casting Process

“…Research activities have not been performed on numerical simulation of the deformation of the cooling roller and its effect on amorphous ribbon formation in PFC process although few work has involved in the conjugated heat transfer between the melt and the rotating roller. 12,13) The present paper is a follow-up to our previous work 14,15) and focuses on the theoretical investigation of stresses distribution and deformation behavior of the rotating roller by a 3D elastic-plastic numerical method. It should be mentioned that the neglecting of thermal expansion in previous studies is valid for analyzing the flow and heat transfer behaviors in PFC process because in a realistic casing, a constant gap distance always is desirable by dynamically adjusting the location of the nozzle relative to the deformed roller surface.…”

“…Results and Discussion 3.1. Thermal and Deformation Characteristics of the Rotating Cooing Roller A detailed description of the fluid flow and heat transfer behavior in the puddle zone and heat transfer in the rotating roller zone can be found elsewhere, 14,15) but a brief summary of the important thermal characteristics of the roller in PFC process at a quasi-steady state in PFC process is given here for reference, as shown in Fig. 2.…”

Effects of Manufacturing Parameters in Planar Flow Casting Process on Ribbon Formation and Puddle Evolution of Fe–Si–B Alloy

“…Therefore, numerical modeling based on computational fluid dynamics (CFD) has been widely used to simulate the casting process. 6,8) Although the fluid flow and temperature distribution in the puddle have been predicted numerically, 6,8,9) experimental studies regarding the variation of puddle geometry with operating parameters in the casting process are still limited. Some investigations have used a high-speed camera together with back light technique to observe the transient behavior of the puddle.…”

Simulation for the Effect of Wetting Conditions of Melt Puddle on the Fe–Si–B Ribbon Alloy in the Planar-Flow Melt-Spinning Process

“…Besides, a higher wheel speed or a lower melt flow rate through the nozzle may reduce the puddle length, ribbon thickness, and strength of vortices at both upstream and downstream of the puddle. Liu et al 10,13) studied the initial development of melt flow and heat transfer of Fe-Si-B alloy numerically during the PFMS process. The heat transfer in the rotating chill wheel was incorporated into the model and the solidified behaviors were characterized by the variation of melt viscosity.…”