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    Lignite-based foundry resins
    32.
    发明授权
    Lignite-based foundry resins 有权
    褐煤型铸造树脂

    公开(公告)号：US08802749B2

    公开(公告)日：2014-08-12

    申请号：US13867835

    申请日：2013-04-22

    申请人： Jianbo Di ,  Joseph M. Fuqua

    发明人： Jianbo Di ,  Joseph M. Fuqua

    IPC分类号： B22C1/22

    CPC分类号： B22C1/2273 ,  B22C1/22 ,  B22C1/26 ,  C08G18/0876 ,  C08G18/6492 ,  C08K3/04 ,  C08L71/02 ,  C08L97/002 ,  C09D7/43 ,  C09D7/45 ,  C09D7/69 ,  C08L2666/28 ,  C08L2666/22 ,  C08L75/04

    摘要： Described herein, in the 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, 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 mixed with the polymerizable polyol and dispersing agents as additives to improve the suspension quality and binder performance of the lignite-containing part of the binder components.

    摘要翻译： 本文中优选的实施方案中描述的是一种可以与其他应用中的粘合剂一起使用的，与铸造用聚集体例如砂一起使用的用于模制或铸造金属部件的基于白酮的聚氨酯树脂粘合剂。 本文所述的粘合剂包括与可聚合多元醇，异氰酸酯和聚合催化剂结合的腐殖质，优选为白云母，以在铸造骨料如砂中原位形成聚氨酯树脂粘合剂。 将褐煤与可聚合多元醇和分散剂混合作为添加剂以改善含褐煤部分粘合剂组分的悬浮质量和粘合剂性能。

    METHOD FOR IMPROVEMENT OF CASTING QUALITY
    33.
    发明申请
    METHOD FOR IMPROVEMENT OF CASTING QUALITY 有权
    改善铸造质量的方法

    公开(公告)号：US20120325113A1

    公开(公告)日：2012-12-27

    申请号：US13525733

    申请日：2012-06-18

    申请人： Victor LaFAY ,  Mark Pine ,  Comelis Grefhorst

    发明人： Victor LaFAY ,  Mark Pine ,  Comelis Grefhorst

    IPC分类号： B22C1/02

    CPC分类号： B22C1/26 ,  B22C1/181 ,  B22C5/185

    摘要： Systems and methods for improved molding sand performance through use of recovered additives from the existing waste stream in a foundry. Sand, clay, and carbon-containing organic components are wet recovered from a green sand mold foundry dust recovery system. The sand and non-sand fractions may be further treated to reduce water content or adjust the levels of various components to generate a pre-mix additive for the generation of new green sand molds, that may display improved properties at ambient and high temperatures when compared to commonly employed traditional pre-mix. In some examples, pre-mixes having reduced sulfur content are obtained. In several embodiments, the non-sand fraction obtained from bag house dust or dust from mechanical reclamation includes increased levels of bentonite claim and carbon.

    摘要翻译： 通过在铸造厂中使用来自现有废物流的回收添加剂改进型砂性能的系统和方法。 砂，粘土和含碳有机成分从绿砂铸造粉尘回收系统中回收。 可以进一步处理沙子和非沙子部分以减少含水量或调节各种成分的水平以产生用于产生新的绿砂模具的预混合添加剂，其可以在比较时在环境和高温下显示出改进的性能 普遍采用传统的预混。 在一些实例中，获得具有降低的硫含量的预混合物。 在几个实施方案中，从袋屋尘或来自机械回收的粉尘获得的非砂级分包括增加的膨润土要求和碳的含量。

    BINDER COMPOSITION AMD METHOD OF FORMING FOUNDRY SAND CORES AND MOLDS
    34.
    发明申请
    BINDER COMPOSITION AMD METHOD OF FORMING FOUNDRY SAND CORES AND MOLDS 审中-公开
    BINDER组合物AMD形成基底砂和方法的方法

    公开(公告)号：US20110042028A1

    公开(公告)日：2011-02-24

    申请号：US12440553

    申请日：2007-09-10

    申请人： Abraham Velasco-Tellez ,  Salvador Valtierra-Gallardo ,  Gilberto Garcia-Tapia ,  Alberto Esquivel-Herrera ,  Satish Jhaveri

    发明人： Abraham Velasco-Tellez ,  Salvador Valtierra-Gallardo ,  Gilberto Garcia-Tapia ,  Alberto Esquivel-Herrera ,  Satish Jhaveri

    IPC分类号： B22C9/02 ,  C08L3/00

    CPC分类号： B22C1/26 ,  B22C1/185

    摘要： A cost-effective starch/water-based binder composition and related method for forming silica sand cores and molds for foundries, wherein the sand grains are pre-coated with starch having additives making the coated sand effective for blowing said cores and molds. One or more additives are included with the starch; preferably sodium tripolyphosphate and -silicon or Silres BS16. The preferred starch is a tapioca starch. The binder of the invention is highly competitive due to its low cost and effectiveness for forming silica-sand cores and molds, being particularly effective for use in aluminum foundries for the automotive industry.

    摘要翻译： 一种成本有效的淀粉/水基粘合剂组合物和用于形成用于铸造的二氧化硅砂芯和模具的相关方法，其中砂粒预先涂覆有具有添加剂的淀粉，使得涂覆的砂有效地吹塑所述芯和模具。 淀粉中含有一种或多种添加剂; 优选三聚磷酸钠和硅或硅烷BS16。 优选的淀粉是木薯淀粉。 本发明的粘合剂由于其低成本和成型硅砂芯和模具的有效性而具有高度的竞争性，对于用于汽车工业的铝铸造厂尤其有效。

    ADDITIVATED COAL DUST WITH WATER SOLUBLE CARBOHYDRATES FOR USE IN THE GREEN SAND COMPOSITION FOR CASTING MOLDING
    35.
    发明申请
    ADDITIVATED COAL DUST WITH WATER SOLUBLE CARBOHYDRATES FOR USE IN THE GREEN SAND COMPOSITION FOR CASTING MOLDING 有权
    用于铸造模具的绿砂组合物中使用的可溶于碳水化合物的添加剂煤粉

    公开(公告)号：US20090283011A1

    公开(公告)日：2009-11-19

    申请号：US12373925

    申请日：2008-02-12

    申请人： Arnaldo Romanus

    发明人： Arnaldo Romanus

    IPC分类号： C09D105/00

    CPC分类号： B22C1/26 ,  Y02E60/324 ,  Y10S106/01

    摘要： Coal dust additivated with water soluble carbohydrates for use in the green sand composition for molding of castings refers to a process for obtaining coal additivated with carbohydrates to be used in the green molding sand composition, commonly used for making casting molds, having as a scope to inhibit the sand sintering on the castings and so to improve their finish.

    摘要翻译： 用于用于模铸铸件的绿砂组合物中的水溶性碳水化合物的煤粉是指用于通过用于制造铸模的绿色型砂组合物中用碳水化合物添加的煤的方法，具有作为范围的范围 抑制铸件上的砂烧结，从而提高其表面光洁度。

    Method of core removal from molded products
    36.
    发明授权
    Method of core removal from molded products 失效
    从成型产品中去除芯的方法

    公开(公告)号：US5262100A

    公开(公告)日：1993-11-16

    申请号：US806002

    申请日：1991-12-09

    申请人： Timothy M. Moore ,  Gerbig W. Van Der Woude

    发明人： Timothy M. Moore ,  Gerbig W. Van Der Woude

    IPC分类号： B22C1/16 ,  B22C1/26 ,  B22D29/00 ,  B29C33/52 ,  B29C33/48

    CPC分类号： B22D29/002 ,  B22C1/167 ,  B22C1/26 ,  B29C33/52

    摘要： A method of removing a core from a molded product in which the core is formed of a particulate inert material, such as sand, bound together by a cured water soluble binder. The binder is cured by heat. The core and molded product are exposed to water, preferably heated water in a bath or steam, after the product has been molded to rapidly disintegrate the core and remove it from the molded product.

    摘要翻译： 从模制产品中去除芯的方法，其中芯由诸如砂的颗粒惰性材料形成，其通过固化的水溶性粘合剂结合在一起。 粘合剂通过加热固化。 在产品被模制之后，芯和模制产品暴露于水，优选在浴或蒸汽中的加热水，以快速分解芯并将其从模塑产品中除去。

    Binders based upon solutions of alkali metal silicates
    38.
    发明授权
    Binders based upon solutions of alkali metal silicates 失效
    基于碱金属硅酸盐溶液的粘合剂

    公开(公告)号：US4341559A

    公开(公告)日：1982-07-27

    申请号：US204562

    申请日：1980-11-06

    申请人： Wolfgang Friedemann ,  Norbert Maak ,  Kurt Feulner

    发明人： Wolfgang Friedemann ,  Norbert Maak ,  Kurt Feulner

    IPC分类号： B22C1/02 ,  B22C1/16 ,  B22C1/18 ,  B22C1/26 ,  C04B28/26 ,  C07H15/12 ,  C09D1/04 ,  B28B7/34

    CPC分类号： C07H15/12 ,  B22C1/167 ,  B22C1/188 ,  B22C1/26 ,  C04B28/26

    摘要： This invention is directed to binder compositions based upon aqueous solutions of alkali metal silicates. More particularly, this invention is directed to binder compositions consisting essentially of (a) aqueous alkali metal silicate solutions having a molar ratio of SiO.sub.2 :Me.sub.2 O of from about 2.0:1 to 3.4:1, with Me signifying an alkali metal, and a solids content of from about 35 to 50 percent by weight, based on the weight of the total alkali metal solution, and (b) from about 0.1 to 10 percent by weight, based upon the weight of the total binder composition, of at least one reductively aminated mono-, di-, or oligosaccharide, and the use of such binder compositions in the preparation of molds or cores for metal casting.

    摘要翻译： 本发明涉及基于碱金属硅酸盐的水溶液的粘合剂组合物。 更具体地，本发明涉及基本上由（a）SiO 2 :Me 2 O摩尔比为约2.0:1至3.4:1的碱金属硅酸盐水溶液与表示碱金属的Me组成的粘合剂组合物，和固体 基于总碱金属溶液的重量，约35至50重量％的含量，和（b）约0.1至10重量％，基于总粘合剂组合物的重量，至少一种还原性 胺化的单糖，二糖或寡糖，以及这些粘合剂组合物在制备用于金属铸造的模具或芯中的用途。