Method for making high strength injection molded ferrous material
US5277867A · kind A · utility
2Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1992 |
| Grant date | Jan 11, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention presents a method of processing ferrous powder materials to produce high strength small component parts suitable for use in miniaturized electrical and electronic equipment. The processing steps involve, in part, mixing with a binder, dewaxing or presintering at a temperature higher than in the conventional dewaxing process, and final sintering at a temperature lower than the conventional sintering process to produce parts having density values of over 96% theoretical density and high mechanical strength properties in a shorter sintering time than the conventional processing method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.