スライディングノズルプレート及びそれを使用したスライディングノズル装置

    公开(公告)号:JPWO2012074086A1

    公开(公告)日:2014-05-19

    申请号:JP2012546953

    申请日:2011-12-02

    CPC classification number: B22D41/28 B22D11/10 B22D41/34

    Abstract: 本発明は、スライディングノズルプレート本体部に筒体を装着したコンポジットスライディングノズルプレートにおいて、筒体の位置ずれ、及び筒体とスライディングノズルプレート本体部との間の目地部への地金差しを防止できるようにするもので、溶融金属容器からの溶融金属の流出量を調節するスライディングノズル装置に使用するスライディングノズルプレート2であって、スライディングノズルプレート本体部の内孔(貫通孔1c’)に環状の鍔部3aを有する筒体3を装着してなり、かつ、下記(1)及び(2)の条件式を充足する。φB≦φI−6…(1)、φB−φR≦4…(2)。ここで、φBはスライディングノズルプレート本体部の内孔の直径(mm)、φIは筒体の鍔部の外径(mm)、φRは筒体の外径(mm)である。

    Continuous casting long nozzle design apparatus and a continuous casting long nozzle design program of the ladle assembly for continuous casting, as well as the method of continuous casting

    公开(公告)号:JP5269713B2

    公开(公告)日:2013-08-21

    申请号:JP2009167786

    申请日:2009-07-16

    Abstract: PROBLEM TO BE SOLVED: To provide a designing device of a ladle assembly for continuous casting, capable of sufficiently preventing spouting of molten steel from the joint part of the upper edge of a long nozzle when opening an immersed hole. SOLUTION: The designing device of a ladle assembly for continuous casting includes: a sand pole movement calculating means for calculating the temporal changes in the speed and the position of the sand pole and for further calculating the temporal change in the height of the level of pooled molten steel that is pooled on the sand pole, while setting as an initial state the state in which a quantity of plugging sand to be dropped in use is filled onto the level of the molten steel pool in the space in a nozzle tube of which the lower part length d is immersed in the molten steel pool, making a sand pole an integrated elastic body that performs stress transmission with a pressure coefficient of μ w k, and allowing the molten steel to flow in with a volume flow of Q m from the upper part of the nozzle; a minimum nozzle-diameter determining means for calculating the height of the level of the pooled molten steel at the time when all of the sand pole is discharged through the lower edge of the nozzle by using the sand pole movement calculating means while changing a tube inner diameter R step-wise, and for determining the minimum inner diameter of the nozzle so that the height of the level is not higher than the height of the upper edge of the nozzle; and a nozzle volume calculating means for calculating a required in-tube volume in the space in the nozzle tube based on the minimum tube inner diameter R of the nozzle. COPYRIGHT: (C)2011,JPO&INPIT

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