Metal powder suited for powder metallurgical purposes, and a process for manufacturing the metal powder
US4069045A · kind A · utility
30Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | May 17, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A steel powder suited for powder metallurgical purposes consists of an amorphous to compact-grained, essentially dendrite-free material with irregularly cornered particle shape. Such a steel powder may be produced by causing molten steel to form at least one discrete, relatively thin film on a relatively cold metal surface of great cooling capacity, causing the thin film to solidify extremely rapidly on the metal surface to form a brittle amorphous to compact-grained, in principle completely dendrite-free steel film, and crushing or grinding the brittle film into a powder of an irregularly cornered particle shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.