High-bandwidth continuous-flow arc furnace

Hardt, David E; Lee, Steven G

Title: 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:

Hardt, David E ^[1]; Lee, Steven G ^[2]

Concord, MA
Ann Arbor, MI

Publication Date:: Mon Jan 01 00:00:00 EST 1996

Research Org.:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

OSTI Identifier:: 870548

Patent Number(s):: US 5544195

Assignee:: Massachusetts Institute of Technology (Cambridge, MA)

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.

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                    Hardt, David E, & Lee, Steven G. High-bandwidth continuous-flow arc furnace.  United States.

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                    Hardt, David E, and Lee, Steven G. 1996.  
        "High-bandwidth continuous-flow arc furnace".  United States.  https://www.osti.gov/servlets/purl/870548.

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@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          = {},

  url          = {https://www.osti.gov/biblio/870548},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Jan 01 00:00:00 EST 1996},

  month        = {Mon Jan 01 00:00:00 EST 1996}

}

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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
https://doi.org/10.1016/0001-6160(89)90227-7

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
https://doi.org/10.2207/qjjws.10.309

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Title: High-bandwidth continuous-flow arc furnace

Abstract

Citation Formats

Analysis of the spray deposition process journal, February 1989

Plasma Spray Joining of Aluminum Matrix Composites Using Osprey Composite Powder. journal, January 1992

Analysis of the spray deposition process
journal, February 1989

Plasma Spray Joining of Aluminum Matrix Composites Using Osprey Composite Powder.
journal, January 1992