Research on droplet formation and dripping behavior during the electroslag remelting process |
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Authors: | Yu-long Cao Yan-wu Dong Zhou-hua Jiang Hai-bo Cao Dong Hou Qian-long Feng |
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Institution: | School of Materials and Metal urgy, Northeastern University, Shenyang 110819, China |
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Abstract: | A better understanding of droplet formation and dripping behavior would be useful in the efficient removal of impurity elements and nonmetallic inclusions from liquid metals. In the present work, we developed a transparent experimental apparatus to study the mecha-nisms of droplet formation and the effects of filling ratio on droplet behavior during the electroslag remelting (ESR) process. A high-speed camera was used to clearly observe, at small time scales, the droplet formation and dripping phenomenon at the slag/metal interface during a stable ESR process. The results illustrate that a two-stage process for droplet formation and dripping occurs during the ESR process and that the droplet diameter exhibits a parabolic distribution with increasing filling ratio because of the different shape and thermal state of the elec-trode tip. This work also confirms that a relatively large filling ratio reduces electricity consumption and improves ingot quality. |
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Keywords: | electroslag remelting droplets dripping physical simulation |
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