Method of making a soft steel sheet by continuous annealing
US4026729A · kind A · utility
5Cited by
8References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1975 |
| Grant date | May 31, 1977 |
| Priority date | — |
| Expiry date | Nov 17, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/68
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process of making a cold-reduced steel strip for press-forming by a continuous annealing process comprising a rapid cooling step after recrystallization heating and an over-aging treatment step, when no spray of cooling water at the runout table before coiling in the hot-rolling stage is carried out on the top side and the bottom side of a travelling hot-rolled steel strip by about 20 to 200m respectively, a cold reduced soft steel sheet for press-forming is easily obtained by the above continuous annealing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.