Interfacial Heat Transfer Behavior Between Liquid Steel and Mold of Non-oriented Electrical Steel Containing Manganese in Thin Strip Continuous Casting

Thin strip continuous castingContinuous casting technologyTechnology has great advantages in the field of non-oriented electrical steelNon-oriented electrical steel due to its near-final forming and sub-rapid solidificationSolidification characteristics. However, it is prone to heat transferHeat transfer reduction and strip breaking in the production processProcess. The deposition behavior of oxide film between liquid steelSteel and copperCopper cooling crystallizer of non-oriented electrical steelNon-oriented electrical steel containing manganeseManganese and its effect on interfacial heat transferInterfacial heat transfer were investigated by using the experimental equipment of melt drop solidificationSolidification technologyTechnology. The results show that with the deposition of oxide film, its surface morphology goes through three stages: agglomeration, cluster, and three-dimensionalThree-dimensional network. The interfacial heat transferInterfacial heat transfer between molten steelSteel and crystallizer decreases first, then increases, reaches a peak, and then decreases. The main components of the naturally deposited film are oxides of Mn, Si, and Fe. With the continuous progress of the experiment, the components of the oxide film are basically stable.