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. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- OSTI Identifier:
- 288031
- Patent Number(s):
- 5544195
- Application Number:
- PAN: 8-359,158
- Assignee:
- Massachusetts Inst. of Tech., Cambridge, MA (United States)
- DOE Contract Number:
- FG02-85ER13331
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 6 Aug 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE; WELDING MACHINES; ARC FURNACES; DESIGN; LIQUID METALS; MATERIALS HANDLING EQUIPMENT; ELECTRIC CURRENTS; CONTROLLED ATMOSPHERES
Citation Formats
Hardt, D E, and Lee, S G. High-bandwidth continuous-flow arc furnace. United States: N. p., 1996.
Web.
Hardt, D E, & Lee, S G. High-bandwidth continuous-flow arc furnace. United States.
Hardt, D E, and Lee, S G. Tue .
"High-bandwidth continuous-flow arc furnace". United States.
@article{osti_288031,
title = {High-bandwidth continuous-flow arc furnace},
author = {Hardt, D E and Lee, S 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. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {8}
}