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The high-temperatureTemperature physical performances of continuous castingContinuous casting billet are crucial for simulating the solidificationSolidification heat transfer process. In this study, the high-temperatureTemperature physical performances of 20CrMnTi billet were tested. Combining experimental test results, the solidificationSolidification heat transfer process in the secondary cooling zone was simulated, obtaining surface temperatureTemperature distribution and shell thickness variation of the billet. The results indicated that the solidus and liquidus temperaturesTemperature of the 20CrMnTi billet were 1462 °C and 1505 °C, respectively. Significant fluctuations in specific heat capacity and thermal conductivityThermal conductivity were observed in the phase transition region. At the exit of mold, the billet shell thickness exceeded 15 mm, complying with metallurgical standards. At the beginning of straightening, the surface temperatureTemperature of the billet was about 900 °C, avoiding the high-temperatureTemperature brittleness zone.

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High-Temperature Physical Performance Testing of 20CrMnTi Billet and Simulation Application in the Continuous Casting Process

  • 会议论文

  • 发表日期：

    2025年

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  • Yinhui Chen,
  • Zhenyao Chen,
  • Mujun Long,
  • Dengfu Chen

摘要

The high-temperatureTemperature physical performances of continuous castingContinuous casting billet are crucial for simulating the solidificationSolidification heat transfer process. In this study, the high-temperatureTemperature physical performances of 20CrMnTi billet were tested. Combining experimental test results, the solidificationSolidification heat transfer process in the secondary cooling zone was simulated, obtaining surface temperatureTemperature distribution and shell thickness variation of the billet. The results indicated that the solidus and liquidus temperaturesTemperature of the 20CrMnTi billet were 1462 °C and 1505 °C, respectively. Significant fluctuations in specific heat capacity and thermal conductivityThermal conductivity were observed in the phase transition region. At the exit of mold, the billet shell thickness exceeded 15 mm, complying with metallurgical standards. At the beginning of straightening, the surface temperatureTemperature of the billet was about 900 °C, avoiding the high-temperatureTemperature brittleness zone.