Variable diameter investment casting mold for casting of reticulated metal foams
US10259036B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2018 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Feb 7, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D25/005
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method to manufacture reticulated metal foam via a dual investment solid mold, includes pre-investing a precursor with a diluted pre-investment ceramic plaster to encapsulate the precursor; and investing the encapsulated precursor with a ceramic plaster within an mold of a varied cross-section. A varied cross-section mold includes a mold thickness adjacent to an outer periphery of a pattern at a top of the varied cross-section mold is between 200-500% a thickness between the outer periphery of the pattern at a base of the varied cross-section mold. A varied cross-section mold includes a trapezoidal prism shape with a pour cone in a top, the top larger than the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.