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Improved cooling method for cooling of hot rolled angles in particular, to differential cooling method for reducing camber in hot rolled angles in rolling mills and to a system for carrying out such method of differential cooling. The method of differential cooling involving three stages cooling of angles comprising first stage water cooling of the hotter apex of the said angle to thereby minimise the temperature gradient between the apex and the flange followed by second stage air cooling and finally third stage rapid water spray cooling of the apex such that temperature gradient between apex and flange is reduced during cooling from plastic to elastic transformation of the angle and thereby reduce camber formation without affecting the usual roiling process. The improved method of cooling reduces camber in hot rolled angles in rolling mills by way of an online differential cooling method for hot rolled angles which would effectively minimise temperature difference between apex and flange at the transformation from plastic to elastic region.
Notices, Deadlines & Correspondence
Patent Information
Applicants
STEEL AUTHORITY OF INDIA LIMITED
Inventors
1. TOPNO ROYLEN
2. PRAKASH KUNDAN
3. BASKIYAR RAJEEV
4. GUPTA DAYA SHANKAR
5. ROY BASUDEO
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 158-cal-2001-granted-specification.pdf | 2011-10-06 |
| 2 | 158-cal-2001-granted-reply to examination report.pdf | 2011-10-06 |
| 3 | 158-cal-2001-granted-pa.pdf | 2011-10-06 |
| 4 | 158-cal-2001-granted-letter patent.pdf | 2011-10-06 |
| 5 | 158-cal-2001-granted-form 3.pdf | 2011-10-06 |
| 6 | 158-cal-2001-granted-form 2.pdf | 2011-10-06 |
| 7 | 158-cal-2001-granted-form 18.pdf | 2011-10-06 |
| 8 | 158-cal-2001-granted-form 1.pdf | 2011-10-06 |
| 9 | 158-cal-2001-granted-examination report.pdf | 2011-10-06 |
| 10 | 158-cal-2001-granted-drawings.pdf | 2011-10-06 |
| 11 | 158-cal-2001-granted-description (complete).pdf | 2011-10-06 |
| 12 | 158-cal-2001-granted-correspondence.pdf | 2011-10-06 |
| 13 | 158-cal-2001-granted-claims.pdf | 2011-10-06 |
| 14 | 158-cal-2001-granted-abstract.pdf | 2011-10-06 |
| 15 | 00158-cal-2001-pa.pdf | 2011-10-06 |
| 16 | 00158-cal-2001-form-3.pdf | 2011-10-06 |
| 17 | 00158-cal-2001-form-2.pdf | 2011-10-06 |
| 18 | 00158-cal-2001-form-18.pdf | 2011-10-06 |
| 19 | 00158-cal-2001-form-1.pdf | 2011-10-06 |
| 20 | 00158-cal-2001-drawings.pdf | 2011-10-06 |
| 21 | 00158-cal-2001-description(complete).pdf | 2011-10-06 |
| 22 | 00158-cal-2001-correspondence.pdf | 2011-10-06 |
| 23 | 00158-cal-2001-claims.pdf | 2011-10-06 |
| 24 | 00158-cal-2001-abstract.pdf | 2011-10-06 |