Process for forming metal parts with less than 1 percent carbon content
US4225345A · kind A · utility
19Cited by
4References
9Claims
0Family size
Inventors
Key dates
| Filing date | Aug 8, 1978 |
| Grant date | Sep 30, 1980 |
| Priority date | — |
| Expiry date | Aug 8, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The disclosed process forms metal parts from a mixture containing a powdered metal, a plasticizer, and at least two binders. Some of these binder materials are selectively extractable from the mixture without sintering. After the mixture is shaped into the form of the desired part and prior to sintering, the plasticizer and the extractable binders are removed. This produces a part having both sufficient green strength and a relatively low binder content. On sintering, remaining binders decompose; and the resulting part has a carbon content of less than 1.0%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.