Means and method for containing flowing or standing molten metal
US4345743A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Oct 10, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D35/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Molten metal, such as aluminum, is held within rigid refractory lining means beneath, above and alongside the metal while heaters keep the outside of the lining means at a predetermined temperature desired for the metal, the heaters being surrounded by thermal insulation and the whole being surrounded by a fluid-cooled support. An unusually effective embodiment is pipe, with a tubular refractory liner to carry flowing metal, surrounded by sheathed heating elements controlled to keep the exterior of the tube at least at about the predetermined temperature, with the thermal insulation wrapped around the heaters and the enclosing support being a water-jacketed steel pipe. The operation is essentially adiabatic with respect to the refractory liner, delivering the molten metal essentially at its original temperature, with unusual saving of heat energy. When the heated pipeline has been drained, only easily removed, paper-thin skulls of solid metal remain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.