High-bandwidth continuous-flow arc furnace
Abstract
A high-bandwidth continuous-flow arc furnace for stream welding applications includes a metal mass contained in a crucible having an orifice. A power source charges an electrode for generating an arc between the electrode and the mass. The arc heats the metal mass to a molten state. A pressurized gas source propels the molten metal mass through the crucible orifice in a continuous stream. As the metal is ejected, a metal feeder replenishes the molten metal bath. A control system regulates the electrode current, shielding gas pressure, and metal source to provide a continuous flow of molten metal at the crucible orifice. Independent control over the electrode current and shield gas pressure decouples the metal flow temperature and the molten metal flow rate, improving control over resultant weld characteristics.
- Inventors:
-
- Concord, MA
- Ann Arbor, MI
- Issue Date:
- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- OSTI Identifier:
- 870548
- Patent Number(s):
- 5544195
- Assignee:
- Massachusetts Institute of Technology (Cambridge, MA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
- DOE Contract Number:
- FG02-85ER13331
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- high-bandwidth; continuous-flow; furnace; stream; welding; applications; metal; mass; contained; crucible; orifice; power; source; charges; electrode; generating; heats; molten; pressurized; gas; propels; continuous; ejected; feeder; replenishes; bath; control; regulates; current; shielding; pressure; provide; flow; independent; shield; decouples; temperature; rate; improving; resultant; weld; characteristics; continuous stream; metal flow; electrode current; continuous flow; power source; molten metal; flow rate; gas pressure; pressurized gas; gas source; metal source; shielding gas; independent control; flow temperature; metal feed; high-bandwidth continuous-flow; /373/
Citation Formats
Hardt, David E, and Lee, Steven G. High-bandwidth continuous-flow arc furnace. United States: N. p., 1996.
Web.
Hardt, David E, & Lee, Steven G. High-bandwidth continuous-flow arc furnace. United States.
Hardt, David E, and Lee, Steven G. Mon .
"High-bandwidth continuous-flow arc furnace". United States. https://www.osti.gov/servlets/purl/870548.
@article{osti_870548,
title = {High-bandwidth continuous-flow arc furnace},
author = {Hardt, David E and Lee, Steven G},
abstractNote = {A high-bandwidth continuous-flow arc furnace for stream welding applications includes a metal mass contained in a crucible having an orifice. A power source charges an electrode for generating an arc between the electrode and the mass. The arc heats the metal mass to a molten state. A pressurized gas source propels the molten metal mass through the crucible orifice in a continuous stream. As the metal is ejected, a metal feeder replenishes the molten metal bath. A control system regulates the electrode current, shielding gas pressure, and metal source to provide a continuous flow of molten metal at the crucible orifice. Independent control over the electrode current and shield gas pressure decouples the metal flow temperature and the molten metal flow rate, improving control over resultant weld characteristics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}
Works referenced in this record:
Analysis of the spray deposition process
journal, February 1989
- Mathur, P.; Apelian, D.; Lawley, A.
- Acta Metallurgica, Vol. 37, Issue 2, p. 429-443
Plasma Spray Joining of Aluminum Matrix Composites Using Osprey Composite Powder.
journal, January 1992
- Itsukaichi, Tsuyoshi; Eagar, Thomas W.; Umemoto, Minoru
- QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, Vol. 10, Issue 2, p. 309-313