Metal casting surface modification by powder impregnation
US5299620A · kind A · utility
18Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Jan 21, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D19/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for impregnating a metal product with a hard wear-resistant surface layer comprises providing a wear-resistant layer in the form of a partially sintered sheet having at least one peg formed therein; attaching the wear-resistant layer to a mold surface; and casting a metal melt so as to produce a metal product having a wear-resistant material surface layer. Preferably the mold surface is a sand core and the sheet has a hexagonal pattern molded therein so as to form a plurality of pegs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.