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    Vitreous fused silica
    2.
    发明授权
    Vitreous fused silica 失效
    玻璃状熔融石英

    公开(公告)号：US5333670A

    公开(公告)日：1994-08-02

    申请号：US45014

    申请日：1993-04-07

    申请人： Gilbert Brandy ,  Jean-Claude Compagnon ,  Jean-Marie Vignot

    发明人： Gilbert Brandy ,  Jean-Claude Compagnon ,  Jean-Marie Vignot

    IPC分类号： B22C1/12 ,  B22C9/06 ,  B22C1/02 ,  C04B35/14

    CPC分类号： B22C9/061 ,  B22C1/12

    摘要： The invention concerns a new material for molding elements as well as the molds produced in this manner. This material contains more than 30% vitreous fused silica and various adjuvants and binders and presents the advantage of the possibility of modulating the thermal conductivity of the molds. Application to all types of industries utilizing shaping by molding of liquid or paste-like materials, or by the hot deformation of flat products.

    摘要翻译： 本发明涉及用于模制元件的新材料以及以这种方式制造的模具。 该材料含有超过30％的玻璃态熔融石英和各种助剂和粘合剂，并且具有调节模具导热性的可能性的优点。 适用于所有类型的行业，通过成型液体或糊状材料，或通过平板产品的热变形来成型。

    LIGNITE-URETHANE BASED RESINS FOR ENHANCE FOUNDRY SAND PERFORMANCE
    3.
    发明申请
    LIGNITE-URETHANE BASED RESINS FOR ENHANCE FOUNDRY SAND PERFORMANCE 审中-公开
    基于LITEITE-URETHANE的树脂，以提高基础性能

    公开(公告)号：US20150246388A1

    公开(公告)日：2015-09-03

    申请号：US14713956

    申请日：2015-05-15

    申请人： AMCOL INTERNATIONAL CORP.

    发明人： Joseph M. Fuqua ,  Paul Klein

    IPC分类号： B22C1/22 ,  B22C9/02 ,  C08L75/04

    CPC分类号： B22C1/2273 ,  B22C1/12 ,  B22C9/02 ,  C08L75/04

    摘要： Described herein, in a preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, first mixed with a foundry aggregate and then the humic-aggregate mixture is combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is added as a solid to the foundry aggregate, and improves the binder performance of the lignite-containing part of the binder components.

    摘要翻译： 在一个优选实施方案中描述的是一种可以与其他应用中的作为粘合剂的组合用于模铸或铸造金属部件的砂的铸造骨料例如砂一起使用的基于白矾的聚氨酯树脂粘合剂。 本文所述的粘合剂包含首先与铸造骨料混合的腐殖质物质，优选为白矾石，然后将腐殖质骨料混合物与可聚合多元醇，异氰酸酯和聚合催化剂组合以在铸造中原位制备聚氨酯树脂粘合剂 骨料，如砂。 将褐煤作为固体添加到铸造骨料中，并且改善了含有褐煤的部分粘合剂组分的粘合剂性能。

    Lignite-Urethane Based Resins for Enhance Foundry Sand Performance
    4.
    发明申请
    Lignite-Urethane Based Resins for Enhance Foundry Sand Performance 审中-公开
    用于提高铸造砂性能的褐煤 - 聚氨酯树脂

    公开(公告)号：US20130203887A1

    公开(公告)日：2013-08-08

    申请号：US13826340

    申请日：2013-03-14

    申请人： AMCOL INTERNATIONAL CORP.

    发明人： Joseph M. Fuqua ,  Paul Klein

    IPC分类号： B22C1/12

    CPC分类号： B22C1/2273 ,  B22C1/12 ,  B22C9/02 ,  C08L75/04

    摘要： Described herein, in a preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, first mixed with a foundry aggregate and then the humic-aggregate mixture is combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is added as a solid to the foundry aggregate, and improves the binder performance of the lignite-containing part of the binder components.

    摘要翻译： 在一个优选实施方案中描述的是一种可以与其他应用中的作为粘合剂的组合用于模铸或铸造金属部件的砂的铸造骨料例如砂一起使用的基于白矾的聚氨酯树脂粘合剂。 本文所述的粘合剂包含首先与铸造骨料混合的腐殖质物质，优选为白矾石，然后将腐殖质骨料混合物与可聚合多元醇，异氰酸酯和聚合催化剂组合以在铸造中原位制备聚氨酯树脂粘合剂 骨料，如砂。 将褐煤作为固体添加到铸造骨料中，并且改善了含有褐煤的部分粘合剂组分的粘合剂性能。

    Method of casting a reactive metal against a surface formed from an improved slurry containing yttria
    5.
    发明授权
    Method of casting a reactive metal against a surface formed from an improved slurry containing yttria 失效
    将反应性金属对抗由含有氧化钇的改进浆料形成的表面的方法

    公开(公告)号：US5221336A

    公开(公告)日：1993-06-22

    申请号：US523120

    申请日：1990-05-14

    申请人： Robert A. Horton

    发明人： Robert A. Horton

    IPC分类号： B22C1/12 ,  B22C3/00

    CPC分类号： B22C3/00 ,  B22C1/12

    摘要： Reactive metals, such as titanium or nickel-chrome superalloys containing rare earths, are cast with mold and/or core surface areas formed from an improved slurry. The improved slurry contains yttria to form an inert surface which is exposed to the molten reactive metal. In order to prevent premature gelation of the slurry, the forming of defects in the mold and/or core surface areas, and the forming of defects in the cast article, the slurry contains a source of hydroxyl ions. The source of hydroxyl ions is sufficient to result in the slurry having a pH of at least 10.2 six days after initially mixing the slurry. The source of hydroxyl ions may be a metal alkali or an organic hydroxide. It is believed that the source of hydroxyl ions functions as a hydration suppressant for the yttria to prevent premature gelation of the slurry. The slurry contains a silicon oxide (SiO.sub.2) to alkali ratio which is equivalent to a silicon oxide to sodium oxide (Na.sub.2 O) dry weight ratio of less than thirty-to-one (30:1).

    摘要翻译： 活性金属，例如含有稀土的钛或镍 - 铬超合金，用改进的浆料形成的模具和/或芯表面区域铸造。 改进的浆料含有氧化钇以形成暴露于熔融反应性金属的惰性表面。 为了防止浆料的过早凝胶化，在​​模具和/或芯部表面区域中形成缺陷以及在铸造制品中形成缺陷，浆料含有羟基离子源。 羟基离子的来源足以使浆料在最初混合浆料六天后具有至少10.2的pH。 羟基离子源可以是金属碱或有机氢氧化物。 据信羟基离子源起着氧化钇的水合抑制作用，以防止浆料过早凝胶化。 浆料含有氧化硅（SiO 2）与碱的比率，其等于氧化硅与氧化钠（Na 2 O）的干重比小于三十一（30:1）。

    Mold core for investment casting, process for preparing the same and process for preparing mold for investment casting having therewithin said mold core
    6.
    发明授权
    Mold core for investment casting, process for preparing the same and process for preparing mold for investment casting having therewithin said mold core 失效
    用于熔模铸造的模芯，其制备方法以及用于在其中具有所述模芯的用于熔模铸造的模具的制备方法

    公开(公告)号：US4919193A

    公开(公告)日：1990-04-24

    申请号：US332445

    申请日：1989-03-31

    申请人： Nobuyoshi Sasaki

    发明人： Nobuyoshi Sasaki

    IPC分类号： B22C9/04 ,  B22C1/12 ,  B22C9/10

    CPC分类号： B22C9/101 ,  B22C1/12

    摘要： A core mold to be assembled with a shell mold for use in an investment casting process is provided. The core mold comprises a core matrix essentially consisting of an aggregate and an inorganic binder, a binder layer impregnated from the surface of said core matrix, a coating layer formed by coating a slurry over said binder layer, and a paraffin wax layer covering the exterior periphery of said coating layer. Also provided are a process for preparing the core mold and a process for preparing an investment casting mold in which the core mold is assembled.

    摘要翻译： 提供了一种用于熔模铸造工艺中使用的外壳模具组装的芯模。 芯模包括基本上由骨料和无机粘合剂组成的芯基体，从所述芯基体的表面浸渍的粘合剂层，通过在所述粘合剂层上涂覆浆料形成的涂层和覆盖外部的石蜡层 所述涂层的周边。 还提供了用于制备芯模的方法和用于制备其中组装芯模的熔模铸造模具的方法。

    LIGNITE-URETHANE BASED RESINS FOR ENHANCED FOUNDRY SAND PERFORMANCE
    8.
    发明申请
    LIGNITE-URETHANE BASED RESINS FOR ENHANCED FOUNDRY SAND PERFORMANCE 有权
    基于LIGNITE-URETHANE的树脂，用于增强基础性能性能

    公开(公告)号：US20110079366A1

    公开(公告)日：2011-04-07

    申请号：US12574501

    申请日：2009-10-06

    申请人： Joseph M. Fuqua ,  Paul Klein

    发明人： Joseph M. Fuqua ,  Paul Klein

    IPC分类号： B22C1/22 ,  B22C9/00

    CPC分类号： B22C1/2273 ,  B22C1/12 ,  B22C9/02 ,  C08L75/04

    摘要： Described herein, in a preferred embodiment, is a leonardite-based polyurethane resin binder that may be used, among other applications, as a binder in combination with foundry aggregate, e.g., sand, for molding or casting metal parts. The binders described herein comprise a humic substance, preferably leonardite, first mixed with a foundry aggregate and then the humic-aggregate mixture is combined with a polymerizable polyol, an isocyanate, and a polymerization catalyst to make a polyurethane resin binder in situ in a foundry aggregate, such as sand. The lignite is added as a solid to the foundry aggregate, and improves the binder performance of the lignite-containing part of the binder components.

    摘要翻译： 在一个优选实施方案中描述的是一种可以与其他应用中的作为粘合剂的组合用于模铸或铸造金属部件的砂的铸造骨料例如砂一起使用的基于白矾的聚氨酯树脂粘合剂。 本文所述的粘合剂包含首先与铸造骨料混合的腐殖质物质，优选为白矾石，然后将腐殖质骨料混合物与可聚合多元醇，异氰酸酯和聚合催化剂组合以在铸造中原位制备聚氨酯树脂粘合剂 骨料，如砂。 将褐煤作为固体添加到铸造骨料中，并且改善了含有褐煤的部分粘合剂组分的粘合剂性能。

    Method for producing a moulding sand that is in particular recirculated, for foundry purposes
    9.
    发明申请
    Method for producing a moulding sand that is in particular recirculated, for foundry purposes 有权
    用于生产特殊再循环的铸砂的方法，用于铸造目的

    公开(公告)号：US20050121168A1

    公开(公告)日：2005-06-09

    申请号：US10503780

    申请日：2003-02-07

    申请人： Cornelis Grefhorst ,  Karl Koch

    发明人： Cornelis Grefhorst ,  Karl Koch

    IPC分类号： B22C1/00 ,  B22C1/02 ,  B22C1/18

    CPC分类号： B22C1/12 ,  B22C1/18

    摘要： A method for producing a moulding sand that is in particular recirculated, for foundry purposes. According to the invention, a mixture of a granular substance and aggregates, such as a binding agent and water, are added to a material that is not capable of swelling in water. The latter material comprises cavities with a specific surface area of more than 10 m2/g, in particular more than 50 m2/g and preferably more than 100 m2/g, for improving the characteristics of the moulding sand and/or for reducing the emission of harmful and/or odorous substances.

    摘要翻译： 用于生产特别是再循环的型砂的方法，用于铸造目的。 根据本发明，将颗粒物质和粘合剂和水等聚集体的混合物加入到不能在水中膨胀的材料中。 后一种材料包括比表面积大于10m 2 / g，特别是大于50m 2 / g，优选大于100m 2 / g，用于改善型砂的特性和/或用于减少有害和/或恶臭物质的排放。