Intermittent molten metal delivery
US9314840B2 · kind B2 · utility
1Cited by
27References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2015 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Apr 22, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D46/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Automated processes that dynamically control rate of delivery of molten metal to a mold during a casting process. Such automated processes can use dynamic metal level variation, control pin pulses and/or oscillation during the mold fill and transient portion of the cast. It has been found that such pulses keep metal flowing in a manner that addresses problems, particularly at the beginning of an ingot cast, associated with metal meniscus contracting and pulling away from the mold on the short faces and corners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.