Plastic pattern casting system and method of casting
US4733713A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 1985 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | May 3, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D47/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A production casting line includes a foam pattern former producing destructible foam patterns for the forming of cast parts. A pattern clusters inventory station is provided immediately adjacent to the process line having a plurality of different preformed foam pattern clusters which are immediately available for introduction and insertion into the production line by interposing of the same into the process line. A substantial number of different patterns are stored. The foam patterns are stable, can be inventoried for long periods and are relatively inexpensive. The versatility with the inventoried patterns increases the operating efficiency and reduce the overall cost of the manufacturing operation. The cast line includes flasks within the pattern clusters and are mounted at a receiving station. Sand is compacted about the foam pattern. Molten metal is introduced at a power station resulting in vaporization and destruction of the plastic pattern and filling of the cavity to duplicate the pattern in the metal. If a demand exists for an alternate inventoried part during a run of a part, the inventoried patterns are moved directly from inventory into the line without shut down. When…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.