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

Patent · Fri Jan 01 04:00:00 EST 1988

OSTI ID:866784

Hobson, David O ^[1]; Alexeff, Igor ^[1]; Sikka, Vinod K ^[2]

---

1. Oak Ridge, TN
2. Clinton, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
• Assignee: United States of America as represented by Deprtment of Energy (Washington, DC)
• Patent Number(s): US 4786320
• OSTI ID: 866784
• Country of Publication: United States
• Language: English

Related Subjects

/266/75/
affect
apparatus
apparent
application
applied
applied fields
applying
causes
commonly
commonly referred
compositions
conducting gas
conducting material
conductor
contaminants
densities
difference
direction
due
electric
electric field
exerted
field
fields
float
force
forces
gaseous
generated
gravity
increase
liquid
lorentz
lorentz force
magnetic
magnetic field
materials
means
metal
metal composition
metal compositions
metals
method
molten
molten metal
molten metals
nonconducting
nonelectrically-conducting
opposite
opposite direction
particulate
particulate contaminants
prevention
provided
rapid
rapid rate
rate
referred
removal
rotational
simultaneous
simultaneous application
specific
specific gravity
stirring
thereto