METHOD FOR ROLLING PIPE SHAPE BY USE OF PLANETARY INCLINED ROLLING MILL AND DEVICE FOR SUPPLYING PIPE SHAPE TO PLANETARY INCLINED ROLLING MILL

摘要

PROBLEM TO BE SOLVED: To improve the capacity of a planetary inclined rolling mill. SOLUTION: The supply of a pipe shape 17 to be rolled to a roller nip is continuously performed in the state where its butt surface is abutted on the butt surface of the succeeding pipe shape with an internal tool (mandrel) 6 which is held in a fixed position to the roller nip and the pipe shape is fed together with the rotation corresponding to the rotation of the end part of the pipe shape that is caused by torsion under a roller 3. This supply device is constituted of a holding devices 9, 10, feeding devices 13, 14 and driving device for the mandrel 6.