Method for casting core removal
US7243700B2 · kind B2 · utility
18Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2005 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Oct 27, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D29/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
To destructively remove a refractory metal casting core from a cast part the part is exposed to a combination of nitric acid and sulfuric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.