Method for introducing additives to liquid metal, ceramic/metallic powder
US7306643B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2006 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Jul 21, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0329
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The method introduces additives into a flowing melt or fluidized metallic/ceramic powder media in a pulsed high pressure manner. The nozzle needle of at least one nozzle is variable and highly precisely moved for the introduction by means of a device and in such a way that additive is dosed exactly in relation to the volume flow of the medium. The pulsating additive stream is injected into the flowing medium by at least one well-aimed nozzle opening. The additives are dosed by means of a pressure that can be variably adjusted by pulse width and pulse frequency. The desired homogenous distribution is obtained by the penetrating injection jet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.