Infiltration of a powder metal skeleton of similar materials using melting point depressant
US7060222B2 · kind B2 · utility
5Cited by
15References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2001 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | May 13, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F3/26
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An infiltrant is used to fill a metal powder skeleton. The infiltrant is similar in composition to the base powder, but contains a melting point depressant. The infiltrant will quickly fill the powder skeleton, then as the melting point depressant diffuses into the base powder, the liquid will undergo solidification and the material will eventually homogenize. This process allows more accurate control of dimensions in large parts with uniform or homogeneous microstructure or bulk properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.