Method and apparatus for cooling hot-rolled steel strip
US9833822B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2013 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Nov 27, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B45/0233
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided are a cooling method and a cooling apparatus that, in the cooling of a hot-rolled steel strip, regulates the amount of cooling water in a two-stage manner for each set of headers in the width direction and changes the rate at which the steel strip is cooled, in a multistage manner by a simple method, and that is effective particularly in cooling the lower surface of the steel strip, where space is narrow. The spray nozzles 5 are arranged in a row in the width direction of the steel strip at a predetermined pitch. Two systems of cooling headers 6 are arranged for one set so that spray nozzles 5 adjacent in the width direction can be supplied with cooling water from different pipe systems, and a spray valve 7 is attached to each cooling header 7 so that spraying/stop of spraying of cooling water can be individually performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.