Molding process for the mass production of aluminum alloy castings and associated items of equipment
US6540007B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1999 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Mar 10, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D33/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for molding a casting made of light alloy comprises the steps consisting in:preparing a mold with a print made of physically setting sand,incorporating a movable closure means in the mold near a feed runner of the mold,placing the mold in such a way that its feed runner is in the lower part,connecting the feed runner of the mold to a tube for feeding with a pressurized molten alloy,filling the mold with said alloy,before any substantial solidification of the casting, moving the closure means in order to close off the feed runner, then rotating the mold through approximately 180° in order to ensure solidification in gravity mode.Application especially to the manufacture of engine blocks for motor vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.