Process for making fine and ultra fine metallic fibers
US6497029B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2000 |
| Grant date | Dec 24, 2002 |
| Priority date | — |
| Expiry date | Jan 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49812
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for making fine and ultra-fine metallic fibers is disclosed comprising arranging a multiplicity of metallic wires to form an assembly of the metallic wires. The assembly of the metallic wires is wrapped with a wrapping material to form a wrapped assembly. A plurality of the wrapped assemblies are inserted into a tube for providing a cladding. The cladding is drawn for reducing the outer diameter thereof and for reducing the cross-section of each of the multiplicity of metallic wires within the cladding to transform the multiplicity of metallic wires into a multiplicity of fine or ultra-fine metallic fibers. The cladding is removed for providing the multiplicity of fine or ultra-fine metallic fibers. In one example, the metallic wires are coated with a coating material formed from the same material as the wrapping material and the cladding material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.