Gas flow control system for molten metal molds with permeable perimeter walls
US7661457B2 · kind B2 · utility
0Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2006 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/07
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A gas flow control system for molten metal molds with permeable perimeter walls, wherein an approximately constant gas mass flow is maintained in individual molds and approximately equal gas mass flows are maintained in molds on the same mold table. A PLC is utilized in combination with a gas mass flow controller to continually monitor and maintain the approximately desired mass flow of gas to the mold cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.