Method and apparatus for the casting of metals
US4969502A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1989 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | May 11, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D39/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Molten metals or alloys are poured into a stationary plate mold from at least one elongated pouring device such that melt overflows the length of the mold. The pouring energy is dissipated by flowing the elongated flow from one stationary device against an energy dissipating plate adjacent the pouring device in proximity to either one of the mold center lines such that the flow forms two balanced streams on the bottom of the mold. Alternatively, an elongated flow is poured from each of two stationary pouring devices positioned in opposing directions along the opposite sidewalls of the mold. Alternatively, the two pouring devices may move from one of the mold center lines towards the sidewalls while pouring molten metal. The pouring energy is dissipated by flowing two of the balanced streams formed on the bottom of the mold towards each other. The dissipation of pouring energy results in the substantial elimination of wave action and flash whereby castings with an even thickness are produced. Apparatus for carrying out the method is described. The plate mold preferably has a layer of flexible insulating material, that may be at least partly molded, attached to its substantially vert…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.