Atomizer with liquid spray quenching
Abstract
Method and apparatus are disclosed for making metallic powder particles wherein a metallic melt is atomized by a rotating disk or other atomizer at an atomizing location in a manner to form molten droplets moving in a direction away from said atomizing location. The atomized droplets pass through a series of thin liquid quenching sheets disposed in succession about the atomizing location with each successive quenching sheet being at an increasing distance from the atomizing location. The atomized droplets are incrementally cooled and optionally passivated as they pass through the series of liquid quenching sheets without distorting the atomized droplets from their generally spherical shape. The atomized, cooled droplets can be received in a chamber having a collection wall disposed outwardly of the series of liquid quenching sheets. A liquid quenchant can be flowed proximate the chamber wall to carry the cooled atomized droplets to a collection chamber where atomized powder particles and the liquid quenchant are separated such that the liquid quenchant can be recycled. 6 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Iowa State Univ., Ames, IA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 644441
- Patent Number(s):
- 5738705
- Application Number:
- PAN: 8-560,711
- Assignee:
- Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
- DOE Contract Number:
- W-7405-ENG-82
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 14 Apr 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; METALS; POWDERS; LIQUID METALS; ATOMIZATION; COOLING; QUENCHING; DROPLETS; EQUIPMENT
Citation Formats
Anderson, I E, Osborne, M G, and Terpstra, R L. Atomizer with liquid spray quenching. United States: N. p., 1998.
Web.
Anderson, I E, Osborne, M G, & Terpstra, R L. Atomizer with liquid spray quenching. United States.
Anderson, I E, Osborne, M G, and Terpstra, R L. Tue .
"Atomizer with liquid spray quenching". United States.
@article{osti_644441,
title = {Atomizer with liquid spray quenching},
author = {Anderson, I E and Osborne, M G and Terpstra, R L},
abstractNote = {Method and apparatus are disclosed for making metallic powder particles wherein a metallic melt is atomized by a rotating disk or other atomizer at an atomizing location in a manner to form molten droplets moving in a direction away from said atomizing location. The atomized droplets pass through a series of thin liquid quenching sheets disposed in succession about the atomizing location with each successive quenching sheet being at an increasing distance from the atomizing location. The atomized droplets are incrementally cooled and optionally passivated as they pass through the series of liquid quenching sheets without distorting the atomized droplets from their generally spherical shape. The atomized, cooled droplets can be received in a chamber having a collection wall disposed outwardly of the series of liquid quenching sheets. A liquid quenchant can be flowed proximate the chamber wall to carry the cooled atomized droplets to a collection chamber where atomized powder particles and the liquid quenchant are separated such that the liquid quenchant can be recycled. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 14 00:00:00 EDT 1998},
month = {Tue Apr 14 00:00:00 EDT 1998}
}