A hot-rolled seamless steel pipe direct piercing rolling production process developed by Northeastern University2024Obtained national patent authorization in the year（CN118237402B）。 This process eliminates the traditional circular heating furnace heating process，Directly piercing and rolling continuous casting billets，Calculation of cross-sectional temperature field distribution through solidification heat transfer model of cast billet，Ensure that the casting temperature meets the preset requirements for perforation。This innovation not only improves the quality problems of the inner wall of the steel pipe caused by quality defects in the core of the casting billet，It also significantly reduces energy consumption，Improved the production yield and processing efficiency of steel pipes，Represents an important development direction for short process production of hot-rolled seamless steel pipes