Electron-beam furnace with magnetic stabilization

Patent · Tue Oct 07 00:00:00 EDT 1986

OSTI ID:5105437

Harker, H R; Knecht, II, J A

This patent describes an electron-beam comprising: a. An evacuable chamber having a port for coupling the chamber to vacuum pump means; b. a trough-shaped hearth within the chamber for holding material to be melted, the hearth having a spout for issuing a flow of molten material therefrom; c. a crucible positioned within the chamber for receiving molten material flowing from the hearth; d. one or more electron guns each for producing an energetic beam of electrons, each electron gun being positioned a relatively large distance away from the hearth and the crucible; e. magnetic beam deflection means forming an integral part of each electron gun for scanning and shaping the beam produced thereby across the hearth or the crucible; and f. magnetic means adjacent to the hearth and the crucible for producing a relatively weak magnetic field in the vicinity of the hearth and the crucible for preventing erratic deflections of the scanning electron beams without significantly altering the trajectories of such beams.

• Assignee: A. Johnson Metals Corp., Exton, PA
• Patent Number(s): US 4616363
• OSTI ID: 5105437
• Resource Relation: Patent File Date: Filed date 22 May 1985
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ELECTRON BEAM FURNACES
DESIGN
BEAM BENDING MAGNETS
BEAM DYNAMICS
BEAM PRODUCTION
BEAM SHAPING
ELECTRON BEAM MELTING
ELECTRON BEAMS
ELECTRON GUNS
MAGNETIC FIELDS
POSITIONING
STABILIZATION
TRAJECTORIES
VACUUM PUMPS
BEAMS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
FURNACES
LABORATORY EQUIPMENT
LEPTON BEAMS
MAGNETS
MELTING
PARTICLE BEAMS
PHASE TRANSFORMATIONS
PUMPS
421000* - Engineering- Combustion Systems