Continuous heat-treatment process for steel strip
US4313772A · kind A · utility
4Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1978 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | May 23, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/52
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a continuous heat-treatment process, cold-rolled steel strip having a thickness of 0.05 to 1 mm, e.g. for producing tin plate, is heated to 650.degree.-850.degree. C. and held in this temperature range for more than 1 s. The strip is then quenched for less than 12 seconds in an aqueous bath at above 75.degree. C., the strip emerging at below 550.degree. C. Temperatures, times, and subsequent steps such as overaging and final cooling are chosen depending on the hardness desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.