Metal flake product suited for the production of metal powder for powder metallurgical purposes, and a process for manufacturing the product
US4063942A · kind A · utility
16Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1976 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | May 17, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/954
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A steel flake product, suitable for being crushed or ground to form a steel powder for powder metallurgical purposes, consists of a plurality of relatively thin, brittle and easily crushed, substantially dendrite-free steel flakes of amorphous to compact-grained structure. Such steel flakes are produced by causing molten steel to form at least one discrete, relatively thin flake-shaped layer on a relatively cold metal surface of great cooling capacity, moving rapidly and substantially across the direction of delivery of the molten steel. Due to the great cooling capacity the layer is made to solidify extremely rapidly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.