Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Reexamination Certificate
2007-07-24
2007-07-24
Tran, Len (Department: 1725)
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
C164S480000
Reexamination Certificate
active
11415194
ABSTRACT:
A twin roll casting machine that can reduce an amount of inert gas to be fed for prevention of oxidization. The machine includes an enclosure enclosing a strip in a range from chilled rolls to pinch rolls, a first swing wall within the enclosure and having a tip end movable toward and away from a surface of the strip, a sealing roll rotatably supported by the tip end of the first swing wall, a second swing wall within the enclosure and having a tip end movable toward and away from the other surface of the strip, a sealing roll rotatably supported by the tip end of the second swing wall, sealing members between peripheral edges of the swing walls and an inner surface of the enclosure, and conduits for supplying inert gas into the enclosure. The respective swing walls are swung to bring the sealing rolls close to the strip to thereby suppress flow of the inert gas from a first space to a second space.
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Nakayama Isamu
Nakayama Katsumi
Osada Shiro
Ishikawajima-Harima Heavy Industries Co. Ltd.
Tran Len
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