Larry D Turner

US Patent:

46780246, Jul 7, 1987

Filed:

Jun 10, 1986

Appl. No.:

6/872725

Inventors:

John R. Hull - Hinsdale IL
Robert J. Lari - Aurora IL
Walter F. Praeg - Palos Park IL
Larry R. Turner - Naperville IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

B22D 2702

US Classification:

164503

Abstract:

Thin metal sheets are cast by magnetically suspending molten metal deposited within a ferromagnetic yoke and between AC conducting coils and linearly displacing the magnetically levitated liquid metal while it is being cooled to form a solid metal sheet. Magnetic flux increases as the molten metal sheet moves downward and decreases as the molten metal sheet moves upward to stabilize the sheet and maintain it in equilibrium as it is linearly displaced and solidified by cooling gases. A conducting shield is electrically coupled to the molten metal sheet by means of either metal sheet engaging rollers or brushes on the solidified metal, and by means of an electrode in the vessel containing the molten metal thereby providing a return path for the eddy currents induced in the metal sheet by the AC coil generated magnetic flux. Variation in the geometry of the conducting shield allows the magnetic flux between the metal sheet and the conducting shield to be varied and the thickness in surface quality of the metal sheet to be controlled. Side guards provide lateral containment for the molten metal sheet and stabilize and shape the magnetic field while a leader sheet having electromagnetic characteristics similar to those of the metal sheet is used to start the casting process and precedes the molten metal sheet through the magnet and forms a continuous sheet therewith.

US Patent:

47413832, May 3, 1988

Filed:

Mar 23, 1987

Appl. No.:

7/029035

Inventors:

John R. Hull - Hinsdale IL
Robert J. Lari - Aurora IL
Walter F. Praeg - Palos Park IL
Larry R. Turner - Naperville IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

B22D 2702

US Classification:

164467

Abstract:

Thin metal sheets are cast by magnetically suspending molten metal deposited within a ferromagnetic yoke and between AC conducting coils and linearly displacing the magnetically levitated liquid metal while it is being cooled to form a solid metal sheet. Magnetic flux increases as the molten metal sheet moves downward and decreases as the molten metal sheet moves upward to stabilize the sheet and maintain it in equilibrium as it is linearly displaced and solidified by cooling gases. A conducting shield is electrically coupled to the molten metal sheet by means of either metal sheet engaging rollers or brushes on the solidified metal, and by means of an electrode in the vessel containing the molten metal thereby providing a return path for the eddy currents induced in the metal sheet by the AC coil generated magnetic flux. Variation in the geometry of the conducting shield allows the magnetic flux between the metal sheet and the conducting shield to be varied and the thickness in surface quality of the metal sheet to be controlled. Side guards provide lateral containment for the molten metal sheet and stabilize and shape the magnetic field while a leader sheet having electromagnetic characteristics similar to those of the metal sheet is used to start the casting process and precedes the molten metal sheet through the magnet and forms a continuous sheet therewith.

Address:

2821 S 106 St APT 104, West Allis, WI 53227

Phone:

4142545941

VIN:

1B3BD1FB0BN556313

Make:

DODGE

Model:

AVENGER

Year:

2011