Apparatus and method for fabrication of metallic fibers having a small cross section
US5027886A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1990 |
| Grant date | Jul 2, 1991 |
| Priority date | — |
| Expiry date | Jul 12, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0611
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The instant invention is concerned with the casting of metal fibers, preferably ferrous fibers, by the melt extraction technique. The metal to be cast as a fiber is in the form of a rod which is brought into contact with a spinning wheel having a tapered perimeter. The rod is heated by electromagnetic induction by a specially designed, slightly curved spiral coil. The coil is shaped to focus the heat at, or close to, the tip of the rod so to induce a meniscus. The rod is fed the through an opening in a guide that acts as a heat sink to carry away excess heat and prevent the rod from melting except at its tip. The spinning wheel is placed in contact with the melted portion of the rod and forms the fibers as it is rotated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.