BIO-BASED BINDER SYSTEM
    67.
    发明申请
    BIO-BASED BINDER SYSTEM 审中-公开
    基于BIO的BINDER系统

    公开(公告)号:US20160311013A1

    公开(公告)日:2016-10-27

    申请号:US15199312

    申请日:2016-06-30

    摘要: A bio-based binder system for use in preparing foundry molds. In a preferred embodiment, the system includes the use of a) a polyermizable hydroxyl-containing component comprising a saccharide, b) an isocyanate component, and c) a catalyst, and preferably amine catalyst, component adapted to catalyze the polymerization of a) and b), in the presence of a foundry aggregate such as sand. The system can be used in any suitable manner, including in either a cold box process or no bake process as described herein.

    摘要翻译: 用于制备铸造模具的生物基粘合剂体系。 在一个优选的实施方案中,该系统包括以下用途:a)含有多糖的含羟基的组分,其包含糖,b)异氰酸酯组分,以及c)催化剂,优选胺催化剂,适于催化a)和 b)在存在诸如砂的铸造骨料的情况下。 该系统可以以任何合适的方式使用,包括在本文所述的冷箱过程或无烘烤过程中。

    Method for improvement of casting quality
    69.
    发明授权
    Method for improvement of casting quality 有权
    提高铸件质量的方法

    公开(公告)号:US09138803B2

    公开(公告)日:2015-09-22

    申请号:US13525733

    申请日:2012-06-18

    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 clay 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沙子级分包括增加的膨润土和碳的含量。

    Lignite-Based Foundry Resins
    70.
    发明申请
    Lignite-Based Foundry Resins 有权
    褐煤铸造树脂

    公开(公告)号:US20130237635A1

    公开(公告)日:2013-09-12

    申请号:US13867835

    申请日:2013-04-22

    IPC分类号: B22C1/22

    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。