Continuous backpass rolling mill
US4793169A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1986 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Jun 27, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49991
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for hot rolling a continuously cast thin slab to form strip comprising the steps of: (a) subjecting a segment of predetermined length of the slab to a reduction pass in a first direction between a pair of work rolls; (b) retracting the segment in a direction opposite the first direction to the entrance side of the work rolls while accommodating the additional length of the segment produced by the reduction operation; (c) repeating steps (a) and (b) in sequence as necessary to finish the segment; and (d) consecutively subjecting the next contiguous portion of the slab to steps (a), (b) and (c) until the slab is finished along its entire length. Apparatus for practicing the method also is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.