Method and apparatus for electro-magnetic casting of complex shapes
US4612972A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | May 24, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D27/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus is provided for electromagnetically coiling a molten material into a longitudinally extending casting defining a longitudinal axis thereof. The casting has a desired cross section extending perpendicular to the longitudinal axis. At least one portion of the outer peripheral surface of the casting extends transversely of the longitudinal axis and has a small radius of curvature. The apparatus includes an inductor extending transversely about the molten material for providing an electromagnetic containment force field acting on the outer peripheral surface of the molten material to form the desired cross section. The improvement comprises a device for turning the electromagnetic containment force field about the longitudinal axis to cause a corresponding turn of the transverse cross section of the molten material about the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.