Method and apparatus for controlling the flow rate and aiming when pouring molten material from a container
US5792378A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Aug 2, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D37/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and apparatus for pouring molten metal in a crucible over a pouring lip of the crucible and into an opening in a mold is disclosed. The crucible and the mold are inside a chamber under vacuum, and the crucible is supported on a holder which is rotatable about first and second, spaced-apart, parallel, horizontal axes. The location of the first axis is selected so that over a limited arc the pouring lip moves primarily horizontally over a preselected distance such as 12-18 inches. The second axis is located so that tilting of the crucible about it causes the molten liquid to flow over the pouring lip. When the molten metal is to be poured, the manually or computer controlled actuators tilt the crucible about the first and second axes to position the lip so that the stream of metal flows into the mold opening at a predetermined rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.