Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Reexamination Certificate
2006-04-04
2006-04-04
Lin, Kuang Y. (Department: 1725)
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
C164S415000
Reexamination Certificate
active
07021364
ABSTRACT:
An apparatus for preventing bulging of both edges of a strip while preventing contamination of a roll surface in a twin roll strip caster including a meniscus shield (5) and a plurality of weirs (12). The apparatus comprises: first chambers (60) arranged at both sides of the meniscus shield (5) in a longitudinal direction parallel to the casting roll (1) and having inlet and outlet ports for non-oxidizing gas; second chambers (80) each assembled to an underside in each of the first chambers (60) in a communicating fashion for receiving non-oxidizing gas from the first chambers (60), and including a plurality of holes (81) formed in an inclined face thereof corresponding to an outer peripheral face in each of the casting rolls (1and1a) in a longitudinal direction of the each casting roll (1or1a); and passages S formed between the meniscus shield (5) and the second chambers (80) and reaching the gas outlet ports of the first chambers for allowing contaminated gas containing evaporated metal components and non-oxidizing gas injected from the second chambers (80) to be outwardly exhausted.
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patent: WO 93/22087 (1993-11-01), None
Choo Dong-Kyun
Kang Tae-Wook
Park Cheol-Min
Lin Kuang Y.
POSCO
Research Institute of Industrial Science and Technology
The Webb Law Firm
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