Process for the continuous production of a rolled stainless steel sheet strip and continuous production line for carrying out the process
US5820704A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Oct 18, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B3/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Process for continuously producing on a production line a rolled stainless steel sheet product having an improved surface state, characterized in that the hot produced sheet is subjected to a treatment comprising at least: PA1 a primary pickling for removing scale, PA1 cold rolling in at the most three rolling passes, PA1 a final annealing, PA1 a final pickling, and PA1 a cold rolling of the "skin pass" type. There is optionally effected, before the primary pickling, a stretcher levelling which produces a residual elongation of 1 to 5% for cracking the layer of oxide and rendering the sheet planar. Apparatus for carrying out the invention process is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.