Process for the casting of sacrificial anodes in an ingot mould having a movable base
US4699203A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1986 |
| Grant date | Oct 13, 1987 |
| Priority date | — |
| Expiry date | Apr 29, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/006
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a process for casting a sacrificial anode having a tubular steel insert bonded over its length to a dissimilar metal by casting and solidifying molten dissimilar metal on the steel insert in a vertical ingot mold having a movable base. A cooling fluid is passed through a pipe means located internal to the insert, to the level of solidification of the molten dissimilar metal, and the cooling fluid is then applied to the internal surface of the insert at the level of solidification. The level of solidification is raised by the cooling fluid relative to the level without cooling by a height equal to between about 1/4 and 3/4 of the maximum height of molten metal in the mold. The bond strength between the steel insert and the dissimilar metal is improved by this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.