Cross-rolling mill with hydraulic roller actuator
AssigneeSMS group GmbH
InventorsFrank D'HONE, Martin SAUERLAND, Matthias KRAHN
Life of this patent
Estimating the term…
Abstract
A cross-rolling mill for rolling a block over a mandrel forms a hollow block. It includes a plurality of working rollers, each of which exerts a substantially radially aligned rolling force onto the block. The working rollers are supported in a roll stand, and the gap between the working rollers and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block can be modified. Hydraulic actuators, preferably hydraulic capsules, are provided in order to modify the rolling gap and preferably also the alignment of the rolling axis of at least one of the working rollers relative to the block.
Claims20
-19. (canceled)
A cross-rolling mill for rolling a block over a mandrel so as to form a hollow block, comprising:
- a roll stand;
- a plurality of working rollers supported in the roll stand, each of which exerts a substantially radially aligned rolling force onto the block;
- and
- hydraulic actuators configured to modify a rolling gap between the plurality of working rollers.
A method for producing a hollow block using a rolling process, comprising:
- providing a cross-rolling mill with a plurality of working rollers, each of which exerts a substantially radially aligned rolling force onto the block;
- supporting the plurality of working rollers in a roll stand such that a rolling gap between the plurality of working rollers can be modified by hydraulic actuators;
- rolling to block over a mandrel;
- and
- modifying the rolling gap during the rolling process.
Dependencies are inferred from the claim text.