High efficiency system for melting molten aluminum
US5963580A · kind A · utility
Inventor
Key dates
| Filing date | Dec 22, 1997 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/60
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and system of heating a body of molten aluminum, for example, contained in a heating bay, the method comprising providing a body of molten aluminum; projecting an electric powered heater into the body of molten aluminum; passing electric current through the element and adding heat to the body of molten aluminum. The heater is comprised of a sleeve suitable for immersing in the molten aluminum. The sleeve may have a closed end and is comprised of a composite material comprised of an inner layer of titanium or titanium alloy having an outside surface having a refractory coating thereon exposed to the molten aluminum, the refractory coating resistant to attack by the molten aluminum. An electric heating element is located in the sleeve in heat transfer relationship therewith for adding heat to the molten aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.