Efficient Electromagnetic Cold Crubible Design And Ti44Al6Nb0.5B Continuous Casting With Crucible

In this paper, a square water-cooling cold crucible with electromagneticis designedand manufactured, and the practicability of cold crucible is verified. The distributionand intensity of magnetic flux density and temperature field inside the cold crucible ismeasured by experiment and simulated by ANSYS software, and the electromagneticcontinuous casting experiment is conducted.The electromagnetic cold crucible magnetic field measurements show that theelectromagnetic field distribution has a great relationship with the position of the coil,the most strong induced magnetic flux density of the axial is at central position of thecoil and the most of radial is at the slit of crucible. The more power, the strongerinduced magnetic flux density. The induction electromagnetic field distribution inside ofthe crucible is simulated by ANSYS. Found that along with current frequency reducingand power increasing the intensity is increasing and the maximum of the magnetic fluxdensity is still in its place that does not change. The results of those experimentalinvestigations are compared with the3D calculations, and the results of simulation andexperiment largely match well mutually.The distribution of temperature field of heating the steel, aluminum and titaniumaluminum alloy in the electromagnetic cold crucible is measured by thermocouplesunder different power and calculated using ANSYS software. Along with the power andthe height of material bar inside of the crucible increasing, the temperature that heatingbar can reach is increasing. The results of temperature field by experiment andsimulation are largely consistent from experiment to simulation under low low-power.And the maximum of the temperature gradient is in the middle of the bar. Along withpower increasing, the temperature increases.The demonstration experiments of the continuous casting of titanium aluminumalloys are conducted. The organization and performance of the ingot by electromagneticcold crucible are analyzed meticulously. The macro organization can divide into threeareas: liquid area, bright area, stable growth area. It is very obvious that Boron addedinto elements refine organization of the titanium aluminum alloys and analysis thepossibly reason of that.