Method of treating wire rod
US4165996A · kind A · utility
1Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1978 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Jan 31, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/525
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Wire rod is subjected to a cooling operation while emerging from a hot rolling mill. The rod is first cooled to a temperature of 850.degree. to 650.degree. C. and is then kept at substantially this temperature for a time sufficient for austenite to be transformed into ferrite. The rod is then cooled to a temperature of 625.degree. to 400.degree. C., and is kept at substantially this temperature, or allowed to cool slowly, for a time not shorter than 15 seconds and sufficiently long to permit precipitation of carbon in the form of carbides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.