Metal-flow impact pad and diffuser for tundish
    1.
    发明授权
    Metal-flow impact pad and diffuser for tundish 有权
    Pralltopf und Diffusorfüreine Zwischenpfanne

    公开(公告)号:EP2537610B1

    公开(公告)日:2017-02-15

    申请号:EP12173052.7

    申请日:2012-06-21

    IPC分类号: B22D41/00

    CPC分类号: B22D41/003

    摘要: The invention relates to a diffuser for use in a tundish and made of a refractory material comprising (a) a base portion having a top surface and a bottom surface, wherein said top surface is an impact surface suitable for withstanding the impact of molten metal; and (b) an outer side wall entirely surrounding said base portion and extending from said top surface of said base portion in order to from a substantially bucket-like structure, and characterised in that said outer side wall comprises two or more flow outlets in the form of recesses extending from the edge of said side wall furthest away from said base portion towards but not up to said base portion. The invention further relates to the use of a diffuser in the process of pouring molten metal through a tundish.

    摘要翻译: 本发明涉及一种用于中间包并由耐火材料制成的扩散器,其包括(a)具有顶表面和底表面的基部,其中所述顶表面是适于承受熔融金属冲击的冲击表面; 和(b)完全围绕所述基部并从所述基部的所述顶表面延伸的外侧壁,以便从大致桶形结构开始,其特征在于,所述外侧壁包括两个或更多个流动出口 从所述侧壁的边缘延伸的凹槽的形式,其最远离所述基部部分而不是直到所述基部部分。 本发明还涉及在通过中间包浇注熔融金属的过程中使用扩散器。

    Fireproof ceramic impact pad
    3.
    发明授权
    Fireproof ceramic impact pad 有权
    耐火陶瓷冲击吸收区

    公开(公告)号:EP2865464B1

    公开(公告)日:2016-03-16

    申请号:EP13189666.4

    申请日:2013-10-22

    IPC分类号: B22D41/00

    CPC分类号: B22D41/003

    摘要: The invention relates to a fireproof (refractory) ceramic impact pad (also called impact pot, German: Pralltopf), which is typically installed along the bottom of a vessel treating metallurgical melts at an area where the metal melt, poured into the vessel, normally hits the vessel bottom. Insofar the impact pot has the task to protect the refractory bottom of the metallurgical vessel (to reduce its wear) and/or to distribute the metal melt within the vessel.

    METHOD FOR MANUFACTURING HIGH-PURITY STEEL CASTING, AND TUNDISH
    4.
    发明公开
    METHOD FOR MANUFACTURING HIGH-PURITY STEEL CASTING, AND TUNDISH 审中-公开
    生产高纯度铸钢和铸造管的方法

    公开(公告)号:EP2837441A4

    公开(公告)日:2015-07-01

    申请号:EP13806075

    申请日:2013-06-10

    申请人: JFE STEEL CORP

    IPC分类号: B22D41/00 B22D1/00 B22D11/117

    摘要: The flotation separation of inclusions in molten steel is performed with increased certainty and efficiency in comparison to conventional methods using a tundish having a weir consisting of a wall part and an eave-shaped part horizontally extending from the top edge of the wall part. Using a tundish 1 in which a weir 7 consisting of a wall part 8 extending so as to surround a molten steel charging position, an eave-shaped part 9 horizontally extending from the top edge of the wall part and at least one notch 12 is placed at a position between the molten steel charging position 5 and a molten steel discharge port 6, a steel cast piece 14 is continuously cast under conditions such that the height H of the upper surface of the molten steel in the tundish and the flow rate Q of the molten steel charged from the ladle into the tundish satisfy expression (1) below, where h represents the height of the weir, S represents the area of the upper opening of the weir, L represents the distance between the front edge on the molten steel charging position side of the eave-shaped part and the surface on the short side of the tundish, and W represents the distance between the front edge on the molten steel charging position side of the eave-shaped part and the surface on the long side of the tundish. 3.50 ‰¦ H - h × S × Á Q 1.37 - 0.6 + 7 L 6 × S × Á Q 1.37 + 7 �¢ W 6 × S × Á Q 1.37 ‰¦ 9.50

    Metal-flow impact pad and diffuser for tundish
    5.
    发明公开
    Metal-flow impact pad and diffuser for tundish 审中-公开
    用于中间包的金属流冲击垫和扩散器

    公开(公告)号:EP2537609A1

    公开(公告)日:2012-12-26

    申请号:EP11171203.0

    申请日:2011-06-23

    IPC分类号: B22D41/00

    CPC分类号: B22D41/003

    摘要: The invention relates to a diffuser for use in a tundish and made of a refractory material comprising (a) a base portion having a top surface and a bottom surface, wherein said top surface is an impact surface suitable for withstanding the impact of molten metal; and (b) an outer side wall entirely surrounding said base portion and extending from said top surface of said base portion in order to from a substantially bucket-like structure, and characterised in that said outer side wall comprises two or more flow outlets in the form of recesses extending from the edge of said side wall furthest away from said base portion towards but not up to said base portion. The invention further relates to the use of a diffuser in the process of pouring molten metal through a tundish.

    摘要翻译: 本发明涉及一种用于中间包并由耐火材料制成的扩散器,该扩散器包括(a)具有顶表面和底表面的基部,其中所述顶表面是适于抵抗熔融金属冲击的冲击表面; (b)完全围绕所述基部并从所述基部的所述顶表面延伸以从基本上呈桶状的结构延伸的外侧壁,并且其特征在于,所述外侧壁包括位于所述基部上的两个或更多个流出口 从所述侧壁的离所述底座部分最远的边缘向所述底座部分延伸但不到达所述底座部分的凹槽形式。 本发明还涉及在通过中间包浇注熔融金属的过程中使用扩散器。

    TUNDISH IMPACT PAD
    6.
    发明公开
    TUNDISH IMPACT PAD 审中-公开
    IMPACT垫比色皿

    公开(公告)号:EP2373447A1

    公开(公告)日:2011-10-12

    申请号:EP09764192.2

    申请日:2009-11-30

    IPC分类号: B22D11/10 B22D41/00 B22D41/08

    摘要: The invention relates to an impact pad (20), for use in a T-shaped tundish (10), the pad (20) comprising a base (21) having an impact surface and an outer side wall (22) extending upwardly therefrom and defining an interior space having an upper opening (24) for receiving a stream of molten metal. This pad is characterized in that the interior space is divided into two regions (25a,25b) by a separating wall (26) provided with at least one passageway (27) for the molten metal stream, the separating wall (26) extending upwardly beyond the outer side wall (22). This impact pads increases the homogeneity of the molten steel cast from the different outlets of the T-shaped tundish and provides equal or relatively similar residence times of the molten steel discharged through the different outlets of the tundish. This impact pad also permits a fast transition of the steel quality at ladle change while retaining the advantages of conventional impact pads (low level of slag emulsification).

    Impact pad for a tundish
    8.
    发明公开
    Impact pad for a tundish 审中-公开
    Prallplattefüreine Giesspfanne

    公开(公告)号:EP1676659A1

    公开(公告)日:2006-07-05

    申请号:EP06000096.5

    申请日:2003-03-27

    IPC分类号: B22D41/00

    CPC分类号: B22D41/003

    摘要: A tundish impact pad (1: 20: 40: 60) formed from refractory material comprising a base (2: 22: 42: 62) having an impact surface which, in use, faces upwardly against a stream of molten metal entering a tundish, a wall (4: 23: 43: 63) extending upwardly from the base around at least a part of the periphery of the impact surface, one or more portions of the upper part of the wall supporting one or more overhangs (5: 24: 44: 64) which project inwardly over the periphery of the base. The width of the or each overhang increases in both directions away from its centre/top, or has a minimum width at one end thereof and a maximum width at the opposite end thereof.

    摘要翻译: 由耐火材料形成的中间包冲击垫(1:20:40:60)包括具有冲击表面的基座(2:22:42:62),所述冲击表面在使用中面向上抵靠进入中间包的熔融金属流, 一个从冲击表面的至少一部分围绕基部向上延伸的壁(4:23:43:63),壁的上部的一个或多个部分支撑一个或多个突出部分(5:24: 44:64),其在基部的周围向内突出。 每个突出部分的宽度在远离其中心/顶部的两个方向上增加,或者在其一端具有最小宽度,并且在其相对端具有最大宽度。