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Title: Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals

Abstract

Method and apparatus for removal of nonelectrically-conducting gaseous, liquid, and particulate contaminants from molten metal compositions by applying a force thereto. The force (commonly referred to as the Lorentz Force) exerted by simultaneous application of an electric field and a magnetic field on a molten conductor causes an increase, in the same direction as the force, in the apparent specific gravity thereof, but does not affect the nonconducting materials. This difference in apparent densities cause the nonconducting materials to "float" in the opposite direction from the Lorentz Force at a rapid rate. Means are further provided for removal of the contaminants and prevention of stirring due to rotational forces generated by the applied fields.

Inventors:
 [1];  [1];  [2]
  1. (Oak Ridge, TN)
  2. (Clinton, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
866784
Patent Number(s):
4786320
Assignee:
United States of America as represented by Deprtment of Energy (Washington, DC) ORNL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; removal; gaseous; liquid; particulate; contaminants; molten; metals; nonelectrically-conducting; metal; compositions; applying; force; thereto; commonly; referred; lorentz; exerted; simultaneous; application; electric; field; magnetic; conductor; causes; increase; direction; apparent; specific; gravity; affect; nonconducting; materials; difference; densities; float; opposite; rapid; rate; means; provided; prevention; stirring; due; rotational; forces; generated; applied; fields; molten metals; particulate contaminants; opposite direction; specific gravity; conducting material; electric field; molten metal; magnetic field; metal composition; simultaneous application; lorentz force; rapid rate; metal compositions; commonly referred; applied fields; conducting gas; /266/75/

Citation Formats

Hobson, David O., Alexeff, Igor, and Sikka, Vinod K. Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals. United States: N. p., 1988. Web.
Hobson, David O., Alexeff, Igor, & Sikka, Vinod K. Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals. United States.
Hobson, David O., Alexeff, Igor, and Sikka, Vinod K. Fri . "Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals". United States. https://www.osti.gov/servlets/purl/866784.
@article{osti_866784,
title = {Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals},
author = {Hobson, David O. and Alexeff, Igor and Sikka, Vinod K.},
abstractNote = {Method and apparatus for removal of nonelectrically-conducting gaseous, liquid, and particulate contaminants from molten metal compositions by applying a force thereto. The force (commonly referred to as the Lorentz Force) exerted by simultaneous application of an electric field and a magnetic field on a molten conductor causes an increase, in the same direction as the force, in the apparent specific gravity thereof, but does not affect the nonconducting materials. This difference in apparent densities cause the nonconducting materials to "float" in the opposite direction from the Lorentz Force at a rapid rate. Means are further provided for removal of the contaminants and prevention of stirring due to rotational forces generated by the applied fields.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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