Apparatus for producing fine metal particles
US4482134A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1983 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | May 9, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus for producing a particulate metal or alloy having a diameter of less than 5 microns by the reaction of a molten metal or alloy with activated hydrogen. The apparatus has (1) a metal melting hearth for melting a starting metal or alloy placed thereon and supporting the molten metal or alloy, (2) a discharge electrode positioned above, and opposite to, the metal or alloy placed on the melting hearth, (3) a closed vessel for containing the melting hearth and the discharge electrode, and (4) a gas inlet port in the wall of the closed vessel for introducing hydrogen or a hydrogen-containing gas into the vessel. The apparatus includes a device for quickly moving fine particles of the metal or alloy generated from the molten metal or alloy away from the vicinity of the molten metal by means of a current of hydrogen or a hydrogen-containing gas constituted by a suction duct for sucking a gas in the vicinity of the molten metal or alloy and withdrawing it out of the vessel and which extends into the vessel through the vessel wall and opens in the vicinity of the molten metal or alloy on the melting hearth; or a device for sending hydrogen or a hydrogen-containing gas into the c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.