Continuous casting of a metallic product by electromagnetic centrifuging
US4067378A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1977 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Jan 31, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/115
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metallic product free of surface faults is continuously cast in a cooled, conductive ingot mold wherein a liquid metal is rotated by applying a magnetic field turning about the axis of the mold thereto and wherefrom the partially solidified metal product is extracted continuously. The driving action of the magnetic field is optimized by imparting to it a maximum value of frequency of rotation between 4 and 15 Hertz, this value being a function of the form and size of the cast product as well as the thickness and electric conductivity of the mold wall such that any increase in the frequency of rotation above this value brings about an attenuation of the frequency in the mold wall in excess of its positive effect on the rotation of the liquid metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.