Ready-to-use metal wire and method for producing same
US6106637A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Jul 14, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12431
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ready-to-use metal wire comprising microalloyed steel with a structure almost entirely made up of a cold-hammered annealed martensite is disclosed. The wire diameter is of at least 0.10 mm and at most 0.50 mm, and the ultimate tensile strength of the wire is of at least 2800 MPa. The method of producing said wire comprises deforming a wire rod, performing a hardening heat treatment on the deformed wire and heating it to an annealing temperature to cause the formation of a structure almost entirely made up of annealed martensite. The wire is then cooled and deformed. Assemblies comprising at least one such wire, and wire or assemblies used in particular for reinforcing pneumatic tires, are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.