Method and apparatus for atomization and spraying of molten metals
First Claim
1. A method for producing a directed spray of fine particulate molten metal comprising:
- providing spaced apart electrodes defining an open-ended zone therebetween for receiving molten metal feed;
providing a flow of molten metal feed into said zone in contact with said electrodes, thereby creating a flow path for electric current between said electrodes;
providing a magnetic field through said zone in a direction perpendicular to said flow path for electric current through said zone; and
passing an electric current through said electrodes and said molten metal in said zone to create magnethydrodynamic forces which accelerate said molten metal within said zone in a direction perpendicular to said flow path and said magnetic field thereby causing said molten metal feed to exit said zone and disperse into fine particulate droplets;
the directions of said magnetic field and electric current being selected to provide the desired direction of acceleration of said molten metal feed.
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Accused Products
Abstract
A method and device for dispersing molten metal into fine particulate spray, the method comprises applying an electric current through the molten metal and simultaneously applying a magnetic field to the molten metal in a plane perpendicular to the electric current, whereby the molten metal is caused to form into droplets at an angle perpendicular to both the electric current and the magnetic field. The device comprises a structure for providing a molten metal, appropriately arranged electrodes for applying an electric current through the molten metal, and a magnet for providing a magnetic field in a plane perpendicular to the electric current.
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Citations
7 Claims
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1. A method for producing a directed spray of fine particulate molten metal comprising:
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providing spaced apart electrodes defining an open-ended zone therebetween for receiving molten metal feed; providing a flow of molten metal feed into said zone in contact with said electrodes, thereby creating a flow path for electric current between said electrodes; providing a magnetic field through said zone in a direction perpendicular to said flow path for electric current through said zone; and passing an electric current through said electrodes and said molten metal in said zone to create magnethydrodynamic forces which accelerate said molten metal within said zone in a direction perpendicular to said flow path and said magnetic field thereby causing said molten metal feed to exit said zone and disperse into fine particulate droplets;
the directions of said magnetic field and electric current being selected to provide the desired direction of acceleration of said molten metal feed. - View Dependent Claims (2, 3, 4)
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5. An apparatus for producing a directed spray of fine particulate molten metal comprising;
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spaced apart electrode defining an open-ended zone therebetween for receiving molten metal feed; means for providing a flow of molten metal feed into said zone means including said electrodes, for passing an electric current through said molten metal in said zone; and means for providing a magnetic field through said zone in a direction perpendicular to the flow of electric current through said zone to create magnethydrodynamic forces which accelerate said molten metal feed within said zone in a direction perpendicular to the flow of electric current and said magnetic field, thereby causing said molten metal feed to exit said zone and disperse into fine particulate droplets, the directions of said magnetic field and electric current being selected to provide the desired direction of acceleration of said molten metal feed. - View Dependent Claims (6, 7)
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Specification