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Computational simulation of the influences on ingot
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1.Western Superconducting Technologies Co.,Ltd,Xi’an 710018;2.China

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    Abstract:

    With the development of titanium alloy industry, the cost control of titanium alloys" products has become an important competitiveness. The yield rate of titanium alloy ingots is closely related to the surface quality of ingot. In this paper, the factors affecting the surface quality of ingots are analyzed by numerical simulation to improve the yield rate. We used meltflow VAR software to analyze the temperature field in VAR process, the relationship between the surface quality and the contact length, which represent the distance between the high temperature liquid phase and crucible wall are established. It is concluded that the three factors, melting current, stirring coils current and period have influnces with the surface quality of ingots. the experiment results show that the higher melting current, the greater stirring coils current and the shorter coils current period are beneficial to improve the surface quality and yield rate of ingots.

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[Zhao xiaohua, Liu peng, Wu wei, He yongsheng, Luo wenzhong, Wang kaixuan. Computational simulation of the influences on ingot[J]. Rare Metal Materials and Engineering,2020,49(3):927~932.]
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History
  • Received:January 11,2019
  • Revised:September 04,2019
  • Adopted:September 04,2019
  • Online: April 08,2020
  • Published: