Apparatus for producing flake
US4242069A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1979 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Jan 24, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F9/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing metal flake of small length-to-width ratio or small length-to-thickness ratio directly from a pool or like source of molten metal or molten inorganic compound, or from an unconfined drop of molten metal or an unconfined drop of molten inorganic compound having a surface tension and viscosity similar to that of molten metal, consisting of forming such products by the application of a rotating, generally circular serrated edge, heat-extracting disk-like member to the surface of the pool of molten material so as to form the material into discrete flake particles by extracting the flake particles from the supply of molten material; and controlling the final shape of the product by the physical shape of the member, the temperature and material composition of the melt, as well as the velocity of the member in contact with the melt. An apparatus for producing flake particles having a small length-to-width or small length-to-thickness ratio by extraction from a molten pool or unconfined drop comprising a rotatable heat-extracting member having a serrated circular peripheral edge with each serration having a leading surface angularly shaped to contact the surface of t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.