| 摘要 |
PROBLEM TO BE SOLVED: To extend the service life of a side weir by preventing the breakage, etc., of a refractory for side weir and also, eliminating the leakage of molten steel by upward shifting of the side weir and enlarging a stroke shiftable upward, in a twin drum type continuous casting. SOLUTION: In the twin drum type continuous casting device pushing one pair of the side weirs to both end surfaces of one pair of drums, a stepping part for press-sticking one pair of solidified shell, is arranged to both end parts of the peripheral surfaces of the drums to shift the starting point of press stickiness of the shells upward. Further, a projecting part is arranged on the sliding surface of the side weir with the sealing surface of the drums, and the lower end surface and the outer side surfaces are formed with inclining surfaces. Since the lower end part of the inclining surfaces in contact with the sealing surfaces of the drums is kept to kissing points of the drums by shifting the side weir upward with the rate according to the wearing rate of the projecting part, such problem as the leakage of the molten steel can be resolved.
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