초록 ▼

An apparatus for continuously casting strip material onto a casting surface includes a tundish for receiving and holding molten metal having a nozzle therein. The nozzle comprises an orifice passage defined between a first inside surface and a second inside surface, wherein at least a portion of at

An apparatus for continuously casting strip material onto a casting surface includes a tundish for receiving and holding molten metal having a nozzle therein. The nozzle comprises an orifice passage defined between a first inside surface and a second inside surface, wherein at least a portion of at least one inside surface comprises an insert disposed against the tundish. A nozzle gap of at least 0.010 inch is maintained, an outer portion of the insert is able to be disposed to within 0.120 inch of the casting surface, and at least a portion of the outside surface of the tundish at the orifice of the nozzle is able to be disposed to within at least about 0.020 inch of the casting surface.

대표청구항 ▼

An apparatus for continuously casting strip material comprising: a tundish for receiving and holding molten metal having a nozzle therein through which molten metal is delivered to a casting surface movable past the nozzle at a speed of from 200 to 10,000 linear surface feet per minute, said nozzle

An apparatus for continuously casting strip material comprising: a tundish for receiving and holding molten metal having a nozzle therein through which molten metal is delivered to a casting surface movable past the nozzle at a speed of from 200 to 10,000 linear surface feet per minute, said nozzle comprising a longitudinally extending orifice passage having substantially uniform cross-sectional dimensions throughout a longitudinal extent thereof, defined between a first inside surface and a second inside surface, an insert disposed in the tundish and movable relative to the tundish, said insert forming at least a portion of one of said inside surfaces, and a minimum gap of at least about 0.010 inch is maintained between said inside surfaces, and said insert having a front edge surface thereof above to be disposed to within 0.120 inch of the casting surface. A method for continuously casting strip material comprising: providing a continuous surface upon which metal strip is cast from a molten metal holding tundish having a nozzle, the surface being cooled to solidify the metal and moving past the nozzle at a rate of from about 200 to about 10,000 feet per minute; the nozzle having an orifice passage defined between first and second inside surfaces and an insert forming at least a portion of one of the inside surfaces; moving the insert relative to the tundish to adjust the position of the insert to less than about 0.120 inch from the casting surface; continuously delivering molten metal through the nozzle onto the moving continuous casting surface to form a continuous metal strip; and continuously removing the cast strip from the continuous casting surface.