Pressurized squeeze casting apparatus and method and low pressure furnace for use therewith
US5887642A · kind A · utility
Inventors
Key dates
| Filing date | Jul 14, 1998 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Jul 14, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D18/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A pressurized squeeze casting apparatus and method for casting articles includes densifying means for mechanically applying force to a die assembly to compress and densify the molten metal material into a solid article having a near net shape. A shutoff member is provided to seal the interior cavity at the juncture of the runner and the cavity after the cavity is filled with molten metallic material and prior to densification. A low pressure furnace provides a supply of molten metallic material. The outlet from the furnace is biased into engagement with the runner by the gas pressure in the low pressure furnace to ensure a fluid tight connection between the furnace and the runner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.