To provide a ring rolling mill having a structure capable of safely and quickly carrying out a high temperature processed ring-shaped raw material just after rolling to a machine outside, by reducing deformation such as circularity.
A ring rolling mill 10 comprises: a rotatingly driven main roll 17; and a rotatable mandrel 18, and comprises: a pair of rotatingly driven edge rolls 19 for rolling by pressing its wall surface in a radial direction, by sandwiching a peripheral part of the processed ring-shaped raw material W by the main roll 17 and the mandrel 18, and rolls by pressing its wall surface in an axial direction by sandwiching the peripheral part of the processed ring-shaped raw material W by the pair of edge rolls 19, and is provided with lifting means 11 and 12 for lifting the processed ring-shaped raw material in a state of supporting the peripheral part of the processed ring-shaped raw material W from below.
KUSHIBUCHI YOJI
SHIOZAWA NARUHITO
JPH01284445A | 1989-11-15 | |||
JPS59162132U | 1984-10-30 |
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