APPARATUS FOR SUPPORTING THE PIERCING MANDREL BACK-UP BAR OF A PRESS-PIERCING ROLLING MILL

摘要

Apparatus is described for supporting the mandrel back-up bar of a press-piercing rolling mill, in which a plurality of constraining elements is supported by a base in two lines disposed parallel to and symmetrically with respect to the rolling and piercing axis of the rolling mill. All the constraining elements of each line are mounted a single beam which is supported on horizontal guides perpendicular to the rollingaxis and is adjustable in position on the guides.