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1. 发明授权

US06997025B2 Sealing system for super-plastic gas-pressure forming of aluminum sheets 有权
标题翻译：铝板超塑料气压成型密封系统
公开(公告)号：US06997025B2
公开(公告)日：2006-02-14
申请号：US10248978
申请日：2003-03-06
申请人： Peter A. Friedman , Warren Benjamin Copple , George Luckey, Jr.
发明人： Peter A. Friedman , Warren Benjamin Copple , George Luckey, Jr.
IPC分类号： B21D26/02 , B21D24/04
CPC分类号： B21D26/055 , Y10T29/49805
摘要： A super-plastic forming tool for forming aluminum sheets is provided that includes a seal bead that is configured to facilitate removal of the aluminum sheet from the seal bead after a super-plastic forming operation. Contraction of the aluminum sheet at a faster rate than the super-plastic forming tool facilitates removal of the aluminum sheet due to the specific geometry of the seal bead. The seal bead has a more shallowly sloped outer surface than its inner surface and may be provided in different configurations including flat, convex, concave shapes.
摘要翻译：提供了一种用于形成铝片的超塑性成型工具，其包括密封珠，其被构造成在超塑性成形操作之后便于从密封珠中去除铝片。与超塑性成型工具相比，铝板的收缩速度更快，由于密封珠的特定几何形状，可以有效地去除铝片。密封珠具有比其内表面更浅的倾斜外表面，并且可以设置成包括平坦，凸形，凹形的不同构造。

2. 发明授权

US5758708A Method of making sand cores 失效
标题翻译：制砂芯的方法
公开(公告)号：US5758708A
公开(公告)日：1998-06-02
申请号：US726372
申请日：1996-10-04
申请人： Elaine Cecilia Beckwith , Warren Benjamin Copple , James Stewart Rankin, II , Scott Raymond Zimdars
发明人： Elaine Cecilia Beckwith , Warren Benjamin Copple , James Stewart Rankin, II , Scott Raymond Zimdars
IPC分类号： B22C7/06 , B22C15/24 , B22C9/10
CPC分类号： B22C7/06 , B22C15/24
摘要： A closed core box is provided with one or more inlets for receiving and passing gas fluidized resin-coated sand to fill the interior of such core box, and with one or more screened outlets for allowing egress of such gas. A closed cylindrical or angular sand-fluidizing chamber is provided for each of the inlets, the chamber having one end connectable to a pressurized gas supply and an opposite end communicating with an inlet. At least part of each chamber is filled with resin-coated sand and a non-porous piston is placed on the sand within each chamber, each piston providing an annular gap (i.e. about 1/16 of an inch) with the interior of such chamber to direct the gas supply along the periphery of the chamber interior. The pressurized gas supply (40-80 psi) is connected to the chamber above the pistons whereby gas will move past each of the pistons to fluidize the sand therebelow in the chamber in a manner that continuously and toroidally recirculates the sand away from the periphery of the chamber while communicating with an inlet to the core box to promote smooth fluidized flow through such inlet, the piston moving down with the top level of the sand in the chamber as sand moves through the inlets.
摘要翻译：封闭的芯盒设有一个或多个入口，用于接收和通过气体流化树脂涂覆的砂以填充这种核心箱的内部，并具有一个或多个用于允许这种气体排出的筛选出口。为每个入口提供封闭的圆柱形或角度砂流化室，该室具有可连接到加压气体源的一端和与入口连通的相对端。每个室的至少一部分填充有树脂涂覆的砂，并且在每个室内的沙子上放置无孔活塞，每个活塞提供环形间隙（即约+ E，1/16 + EE英寸）其中这种室的内部沿着室内部的周边引导气体供应。加压气体供应（40-80psi）连接到活塞上方的室，由此气体将移动通过每个活塞，以使室中的沙子流化，使得沙子不断地和环形地再循环该室与核心箱的入口连通以促进通过这种入口的平滑流化流动，当砂移动通过入口时，活塞随着室中的砂的顶部水平向下移动。

3. 发明授权

US5924475A Method of making gas curable resin-coated sand cores 失效
标题翻译：制备可固化树脂的砂芯的方法
公开(公告)号：US5924475A
公开(公告)日：1999-07-20
申请号：US851289
申请日：1997-05-05
申请人： Elaine Cecilia Beckwith , James Stewart Rankin, II , Warren Benjamin Copple
发明人： Elaine Cecilia Beckwith , James Stewart Rankin, II , Warren Benjamin Copple
IPC分类号： B22C1/00 , B22C9/12 , B22C19/04 , B22C9/10 , B22C1/02
CPC分类号： B22C9/123 , B22C1/00 , B22C19/04
摘要： A method of making sand cores to obtain optimum mechanical properties and particularly to obtain accurate adjustment of the gas curing cycle for making optimum resin-coated sand cores. The method comprises blowing, into a core box cavity, mixture of core making particulated sand and gas curable liquid resin having a first level of pH, such mixture containing a uniform distribution of a pH indicating dye additive that changes color in response to a change in pH level, in contact therewith, such blowing being continued to fill the cavity to a desired density and form an uncured sand core shape with a predetermined porosity, (b) introducing a catalyst gas having a second level of pH, through the pores of the core shape to cure the resin and contact the dye additive, (c) concurrently, or subsequent to step (b), sensing the degree of color change of any part of the core shape that is or has taken place as a result of exposure to the flow front of the catalyst gas, and (d) responding to such color sensing to modify the parameters of catalyst gas introduction (i.e. exposure time, gas pressure, gas concentration or gas inlet/out location) to ensure the desired degree of catalyst reaction in the desired time period.
摘要翻译：一种制造砂芯以获得最佳机械性能的方法，特别是为了获得最佳树脂涂覆砂芯的气体固化循环的准确调整。该方法包括将核心制粒微粒砂和具有第一水平pH的气体可固化液体树脂的混合物吹入芯盒腔中，这种混合物含有pH指示染料添加剂的均匀分布，其响应于颜色变化而变色 pH值与此接触，这样的吹送继续将空腔填充到所需的密度，并形成具有预定孔隙率的未固化砂芯形状，（b）通过孔的孔引入具有第二水平的pH的催化剂气体核心形状以固化树脂并接触染料添加剂，（c）在步骤（b）的同时或之后，检测作为曝光的结果或已经发生的核心形状的任何部分的颜色变化程度催化剂气体的流动前沿，以及（d）响应于这种颜色感测来改变催化剂气体引入的参数（即，暴露时间，气体压力，气体浓度或气体入口/出口位置），以确保所需的cata程度在所需时间段内进行裂解反应。

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