Process and apparatus having improved efficiency for producing a semi-solid slurry
US4465118A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1981 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Jul 2, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process and apparatus having improved efficiency for forming a semi-solid alloy slurry. A molten metal in a containing device is mixed electromagnetically by a moving, non-zero magnetic field provided over substantially all of a solidification zone within the containing device. The magnetic field causes the shearing of dendrites formed in the solidification zone at a desired shearing rate. The magnetic field is generated by a device supplied with current at a desired line frequency. By operating within a defined range of line frequencies, a desired shear rate for attaining a desired cast structure at reduced levels of power consumption and current can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.