公开(公告)号：US5162393A

公开(公告)日：1992-11-10

申请号：US691397

申请日：1991-04-25

申请人： John S. Griffin ,  Thomas A. Penko

发明人： John S. Griffin ,  Thomas A. Penko

IPC分类号： B22C9/12 ,  B22C1/16 ,  B22C1/22 ,  C08L61/10

CPC分类号： B22C9/123 ,  B22C1/162

摘要： Foundry sand cores are produced by a method comprising the steps of:(1) providing a core box to contain the core(2) injecting into the core box a mixture of sand and a binder capable of being cured by means of carbon dioxide gas so as to form the core(3) passing carbon dioxide gas under pressure into the core box so as to fill the core box(4) holding the core in contact with the carbon dioxide gas so as to cure the binder(5) releasing the pressure and allowing carbon dioxide gas to escape from the core box and(6) removing the cured core from the core box.The method can also be used to produce moulds and is of particular use in the production of cores or moulds from a mixture of sand and a binder consisting of an alkaline aqueous solution of a phenol-formaldehyde resin and an oxyanion such as borate capable of forming a stable complex with the resin.

摘要翻译： 通过包括以下步骤的方法制造铸造砂芯：（1）提供芯盒以容纳将芯（2）注入到芯盒中的砂浆和能够通过二氧化碳气体固化的粘合剂的混合物的核心 为了形成将核心（3）在压力下通入二氧化碳气体到核心箱中，以填充保持芯与二氧化碳气体接触的芯盒（4），以使粘合剂（5）固化释放压力 并且允许二氧化碳气体从芯盒中逸出，和（6）从芯盒中去除固化的芯。 该方法也可用于生产模具，并且特别用于由砂和粘合剂的混合物的混合物生产核心或模具，所述混合物由酚 - 甲醛树脂的碱性水溶液和能够形成的硼酸盐的氧阴离子组成 与树脂稳定的配合物。

公开(公告)号：US06240153B1

公开(公告)日：2001-05-29

申请号：US09096231

申请日：1998-06-11

申请人： John S. Griffin ,  William G. Mikulenka ,  Alan W. Plunkett

发明人： John S. Griffin ,  William G. Mikulenka ,  Alan W. Plunkett

IPC分类号： G21C1302

CPC分类号： G21C13/06 ,  B08B1/04 ,  B08B3/02 ,  Y02E30/40

摘要： A reactor stud cleaning apparatus is presented for cleaning studs, nuts, and washers used to secure reactor heads on nuclear reactors. The cleaning apparatus is a self-contained unit having a housing that includes two independent sealable compartments allowing cleaning of two studs simultaneously. Each sealable compartment has a topside covering with a port that allows reactor studs to be lowered into the apparatus keeping the longitudinal axis of the reactor stud maintained in a substantially vertical position. Inside the sealable compartments is a turn table for vertically mounting a reactor stud and for rotating the stud about its longitudinal axis. Brushes, rotatably mounted inside the compartment, are used to clean the reactor stud. The apparatus also has a cleaning fluid circulation system for circulating solvents or other cleaning agents or fluids over the reactor stud during cleaning.

摘要翻译： 提出了一种反应堆螺柱清洁装置，用于清洁用于固定核反应堆上的反应堆头的螺柱，螺母和垫圈。 清洁装置是具有壳体的独立单元，该壳体包括两个独立的可密封隔室，允许同时清洁两个螺柱。 每个可密封的隔间具有顶端覆盖有端口，允许将反应堆螺柱下降到设备中，使得反应器螺柱的纵向轴线保持在基本垂直的位置。 在可密封隔室内部是用于垂直安装反应堆螺柱并用于围绕其纵向轴线旋转螺柱的转台。 可旋转地安装在隔室内的刷子用于清洁反应器螺柱。 该设备还具有用于在清洁期间使溶剂或其它清洁剂或流体在反应器螺柱上循环的清洁流体循环系统。