Method for continuous-casting slab
    11.
    发明授权

    公开(公告)号:US10207316B2

    公开(公告)日:2019-02-19

    申请号:US16036998

    申请日:2018-07-17

    摘要: A primary object of this invention is to provide a continuous casting method by which a slab of excellent internal quality can be obtained even if the casting speed is changed. In this invention, upon continuous casting with two pairs of the reduction rolls arranged along a casting direction and support rolls arranged between the reduction rolls, when a casting speed is reduced compared to a state where combination of reduction with reduction rolls at a first stage on an unsolidified portion of the slab and reduction with reduction rolls at a second stage on a solidified portion thereof is employed, the combination is switched to combination of reduction with the reduction rolls at the first stage on a portion of the slab at an end of solidification and the reduction with the reduction rolls at the second stage on the solidified portion thereof.

    CONTINUOUS CASTING INSTALLATION FOR THIN SLABS

    公开(公告)号:US20170341135A1

    公开(公告)日:2017-11-30

    申请号:US15531309

    申请日:2015-11-27

    申请人: SMS GROUP GMBH

    摘要: An apparatus for the continuous casting of thin slabs, having a strand guide, which is arranged downstream of a permanent mold in the casting direction and which guides the strand output from the permanent mold along a first direction, having an adjoining bending/straightening region, which a mechanism for driving and bending the strand in a second direction, which differs from the first direction, having a cutting device, which cuts the strand into thin slabs, and having a first furnace, which is provided for temperature compensation in the strand, wherein the first furnace extends in an arched manner at least partially over the bending/straightening region and in part along the second direction.

    Method of casting lithium containing aluminium alloys
    17.
    发明授权
    Method of casting lithium containing aluminium alloys 有权
    含锂铝合金的铸造方法

    公开(公告)号:US09566643B2

    公开(公告)日:2017-02-14

    申请号:US14782097

    申请日:2014-03-11

    发明人: Fred Brandt

    摘要: Method of casting aluminum alloy ingot including lithium, including: preparing at least two molten aluminum based alloys in separate furnaces, first alloy with composition A free from lithium as purposive alloying element, and second alloy with composition B including lithium as purposive alloying element; transferring the first alloy via metal conveying trough from the furnace to a casting station; initiating casting an ingot and casting the first alloy to required length L1 in the casting direction; subsequently transferring the second alloy via metal conveying trough from the furnace to the casting station while simultaneously stopping transfer of the first alloy to the casting station; casting the second alloy from an end surface of the cast first alloy at length L1 to an additional required length L2 in the casting direction; cropping the cast ingot at a bottom thereof at a length greater than of equal to cast length L1.

    摘要翻译: 包括锂的铝合金锭的铸造方法,包括:在单独的炉中制备至少两种熔融铝基合金,第一合金与组合物A不含锂作为目的合金元素,第二合金与组合物B包括锂作为目的合金元素; 通过金属输送槽将第一合金从炉转移到铸造站; 开始铸造锭并将铸造第一合金在铸造方向上以所需长度L1铸造; 随后通过金属输送槽将第二合金从炉转移到铸造站,同时停止将第一合金转移到铸造台; 将铸造第一合金的端面长度L1的铸造第二合金铸造到铸造方向上的额外所需长度L2; 在其底部以大于等于铸造长度L1的长度裁剪铸锭。

    CONTINUOUS CASTING METHOD FOR INGOTS OBTAINED FROM TITANIUM OR TITANIUM ALLOY
    18.
    发明申请
    CONTINUOUS CASTING METHOD FOR INGOTS OBTAINED FROM TITANIUM OR TITANIUM ALLOY 审中-公开
    从钛或钛合金获得的连续铸造方法

    公开(公告)号:US20170036265A1

    公开(公告)日:2017-02-09

    申请号:US15296559

    申请日:2016-10-18

    摘要: For continuously casting an ingot of titanium or titanium alloy, molten titanium or titanium alloy is poured into a top opening of a bottomless mold with a circular cross-sectional shape, the solidified molten metal in the mold is pulled downward from the mold, a plurality of plasma torches disposed on an upper side of molten metal in the mold such that their centers are located directly vertically above the molten metal in the mold, are operated to generate plasma arcs that heat the molten metal in the mold, and the plasma torches are moved in a horizontal direction above a melt surface of the molten metal in the mold, along a trajectory located directly vertically above the molten metal in the mold, while keeping a mutual distance between the respective plasma torches such that the plasma torches do not interfere with each other.

    摘要翻译: 为了连续铸造钛或钛合金锭,将熔融的钛或钛合金注入到具有圆形横截面形状的无底模具的顶部开口中,模具中的固化熔融金属从模具中向下拉,多个 的等离子体炬设置在模具中的熔融金属的上侧,使得它们的中心直接位于模具中的熔融金属垂直上方,以产生加热模具中的熔融金属的等离子体电弧,等离子炬是 沿着位于模具中的熔融金属直接垂直方向上的轨迹沿水平方向在模具中的熔融金属表面上移动,同时保持相应等离子体炬之间的相互距离,使得等离子体炬不干扰 彼此。

    Electromagnetic casting method and apparatus for polycrystalline silicon
    19.
    发明授权
    Electromagnetic casting method and apparatus for polycrystalline silicon 有权
    多晶硅电磁铸造方法及装置

    公开(公告)号:US09553221B2

    公开(公告)日:2017-01-24

    申请号:US13845507

    申请日:2013-03-18

    申请人: SUMCO CORPORATION

    摘要: Disclosed is an electromagnetic casting method of polycrystalline silicon which is characterized in that polycrystalline silicon is continuously cast by charging silicon raw materials into a bottomless cold mold, melting the silicon raw materials using electromagnetic induction heating, and pulling down the molten silicon to solidify it, wherein the depth of solid-liquid interface before the start of the final solidification process is decreased by reducing a pull down rate of ingot in a final phase of steady-state casting. By adopting the method, the region of precipitation of foreign substances in the finally solidified portion of ingot can be reduced and cracking generation can be prevented upon production of a polycrystalline silicon as a substrate material for a solar cell.

    摘要翻译: 本发明公开了一种多晶硅的电磁铸造方法,其特征在于,通过将硅原料装入无底冷模中,通过电磁感应加热熔化硅原料,并将熔融硅固化而使多晶硅连续铸造, 其中在最终凝固过程开始之前的固 - 液界面的深度通过在稳态铸造的最后阶段中通过降低锭的下拉速率来降低。 通过采用该方法,可以减少在锭的最终凝固部分中异物沉淀的区域,并且在生产作为太阳能电池的基板材料的多晶硅时可以防止产生裂纹。

    Automated variable dimension mold and bottom block system
    20.
    发明授权
    Automated variable dimension mold and bottom block system 有权
    自动可变尺寸模具和底部块系统

    公开(公告)号:US09545662B2

    公开(公告)日:2017-01-17

    申请号:US13416933

    申请日:2012-03-09

    摘要: A molten metal mold and bottom block system, including apparatus and method embodiments, which may include a mold cavity framework with a first side, a second side opposite the first side, a third side, and a fourth side opposite the third side, each side including an inner surface and the inner surfaces defining a mold cavity, and wherein one or more of the sides are movably mounted relative to the second side, and are controllably moved during the casting. This system may also include embodiments wherein the castpart produced has a tapered form at one or both of the castpart ends. Aspects of this invention may be considered to be a castpart shrinkage management system or a castpart form or profile control system due to the advantage of increased controls of castpart form during the casting process.

    摘要翻译: 一种熔融金属模和底块系统,包括装置和方法实施例,其可以包括具有第一侧的模腔框架,与第一侧相对的第二侧,第三侧和与第三侧相对的第四侧 包括内表面和内表面限定模具腔,并且其中一个或多个侧面相对于第二侧面可移动地安装,并且在铸造过程中可控制地移动。 该系统还可以包括其中所生产的铸件在铸件端部的一个或两个处具有锥形形状的实施例。 由于铸造过程中铸件形式的控制的增加的优点,本发明的方面可被认为是铸件收缩管理系统或铸件形式或轮廓控制系统。