Development of Pipe-end Sharpening Technique with and Application to Φ159 mm FQM

Elaborated are the main aspects of the pipe-end sharpening technique, covering the principle, function, technical features, and the control method and the key issues related to the rolling process with the sharpening technique. Focused on are the development of the said technique with the Φ159 mm FQM, and application thereto. Relevant operation result shows that thanks to the said sharpening technique, the crop length of the pipe can be considerably reduced, particularly for small-sized pipe production, the yield can be increased by 1%²%.