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    CASTING PROCESS AND SAND MOULD PROVIDED WITH A GATING SYSTEM FOR PRODUCING AT LEAST PARTLY THIN WALLED ALUMINIUM CASTS WITH SAND MOULDING TECHNOLOGY BY MEANS OF GRAVITY CASTING
    6.
    发明申请
    CASTING PROCESS AND SAND MOULD PROVIDED WITH A GATING SYSTEM FOR PRODUCING AT LEAST PARTLY THIN WALLED ALUMINIUM CASTS WITH SAND MOULDING TECHNOLOGY BY MEANS OF GRAVITY CASTING 审中-公开

    公开(公告)号：US20170333981A1

    公开(公告)日：2017-11-23

    申请号：US15527504

    申请日：2016-05-12

    申请人： Alu-Onto Kft.

    发明人： Gergely Hajas

    IPC分类号： B22C9/08 ,  B22D21/00 ,  B22C9/02 ,  B22D15/04 ,  B22D27/04 ,  B22D25/02

    CPC分类号： B22C9/082 ,  B22C9/02 ,  B22C9/12 ,  B22D15/00 ,  B22D15/04 ,  B22D21/007 ,  B22D25/02 ,  B22D27/04

    摘要： The subject of the invention is a process for the production of at least partly thin-walled and aluminium castings with sand moulding technology by gravity casting, which allows producing casts with 100 times or favourably 200-400 times larger overall dimensions in case of 1-3 mm wall thickness. The main idea of the process is that sand mould containing mould cavity is provided, melt of aluminium content is produced, the melt is introduced into the mould cavity at several points through a gating system of narrowing cross section. A further subject of the invention is a sand mould fitted with a gating system to produce at least partly thin-walled castings with sand moulding technology, by gravity casting. The wall thickness of thin-walled segments is 1-3 mm and the largest dimension is more than a 100 but favourably at least 200-400 multiple of the wall thickness. The main idea behind the sand mould with a gating system is that it contains a mould cavity allowing the production of at least partly thin-walled castings, and is equipped with a gating system, which is composed of at least two sprues and one ingate to each having a porthole into the mould cavity and in liquid contact with the sprues.

    Method for manufacturing hollow ingot for retaining ring of large generator by electroslag remelting
    9.
    发明授权
    Method for manufacturing hollow ingot for retaining ring of large generator by electroslag remelting 有权
    通过电渣重熔制造大型发电机保持环空心锭的方法

    公开(公告)号：US09393613B2

    公开(公告)日：2016-07-19

    申请号：US14559293

    申请日：2014-12-03

    申请人： Northeastern University

    发明人： ZhouHua Jiang ,  FuBin Liu ,  Xu Chen ,  HuaBing Li ,  XiMin Zang ,  Xin Deng

    IPC分类号： B22D7/04 ,  B22D23/10 ,  B22D2/00 ,  B22D27/02 ,  B22D27/04 ,  C22B9/18

    CPC分类号： B22D7/04 ,  B22D2/003 ,  B22D23/10 ,  B22D27/02 ,  B22D27/04 ,  C22B9/18

    摘要： A method for manufacturing hollow ingot for retaining ring of large generator by electroslag remelting, comprising the following steps: (1) preparing consumable electrode assemblies; (2) melting slag into molten slag; (3) inserting one consumable electrode assembly into an electroslag remelting hollow ingot mold; (4) switching on two transformers; (5) pouring the molten slag into the electroslag remelting hollow ingot mold; (6) forming a current circuit among a stub, the consumable electrode assembly and a water-cooled bottom plate; (7) forming a current circuit among the upper segment, the water-cooled bottom plate and the transformer; (8) regulating the output current and voltage of the two transformers; (9) starting a withdrawing device to withdraw; (10) exchanging the consumable electrode assembly; (11) inserting a subsequent consumable electrode assembly into the molten slag, and repeating steps (8) to (10) until withdrawing is completed.

    摘要翻译： 一种通过电渣重熔制造大型发电机保持环的中空锭的方法，包括以下步骤：（1）制备可消耗电极组件; （2）将炉渣熔化成熔渣; （3）将一个可消耗电极组件插入电渣重熔中空铸锭模具中; （4）接通两台变压器; （5）将熔渣倒入电渣重熔中空铸锭模具中; （6）在短截线，可消耗电极组件和水冷底板之间形成电流电路; （7）在上段，水冷底板和变压器之间形成电流电路; （8）调节两个变压器的输出电流和电压; （9）撤出撤离装置; （10）更换可消耗电极组件; （11）将随后的可消耗电极组件插入熔融炉渣中，并且重复步骤（8）至（10），直到完成抽出。

    THERMAL ISOLATION FOR CASTING ARTICLES
    10.
    发明申请
    THERMAL ISOLATION FOR CASTING ARTICLES 审中-公开
    铸造用品的热隔离

    公开(公告)号：US20160059305A1

    公开(公告)日：2016-03-03

    申请号：US14935068

    申请日：2015-11-06

    申请人： REL, Inc.

    发明人： Josh E. Loukus ,  Adam R. Loukus

    IPC分类号： B22D27/04 ,  B22D17/20 ,  B22D17/22

    CPC分类号： B22D27/04 ,  B22C9/00 ,  B22D17/00 ,  B22D17/2023 ,  B22D17/203 ,  B22D17/22 ,  B22D19/0081 ,  B22D19/02 ,  B22D19/08 ,  B22D19/14 ,  C04B30/02 ,  C04B2111/00525 ,  C04B2111/00577 ,  Y10T428/24926 ,  C04B14/46

    摘要： Some embodiments provide methods and systems for casting articles. One example of a method includes providing and positioning a thermal blanket within a mold cavity and then introducing a molten material into the mold cavity and into contact with the thermal blanket. The method allows the molten material to remain in a molten state during a dwell time that extends from the introduction of the molten material at least until the mold cavity is filled. In another example, a method of using a thermal blanket includes keeping a molten material in a molten state during a dwell time extending from first introduction of the molten material until pressurization. Systems including a variety of mold types, one or more thermal blankets, and in some cases preforms and/or inserts are also provided. Also described is a novel thermal blanket and method of manufacturing the same.

    摘要翻译： 一些实施例提供了用于铸造制品的方法和系统。 一种方法的一个实例包括提供并将热毯定位在模腔内，然后将熔融材料引入模腔并与热毯接触。 该方法允许熔融材料在从引入熔融材料延伸的停留时间期间保持在熔融状态，至少直到模腔被填充。 在另一个实例中，使用热毯的方法包括在熔融材料的第一次引入直到加压的停留时间内保持熔融材料处于熔融状态。 还提供了包括各种模具类型，一个或多个热毯，以及在某些情况下的预制件和/或插入件的系统。 还描述了一种新型热毯及其制造方法。