公开(公告)号：US07524448B2

公开(公告)日：2009-04-28

申请号：US11135738

申请日：2005-05-23

Applicant: John Charles Rector

Inventor： John Charles Rector

IPC: B29C47/12

CPC classification number: B28B3/269 ,  B29C47/0028 ,  B29C47/12 ,  B29L2031/60 ,  B29L2031/608

Abstract: The invention discloses method and apparatus for providing a desired batch flow through desired regions of an extrusion die for forming honeycomb structures, and more particularly to the enhancement of batch flow in the skin-forming region of the die so as to provide a bounding wall of desired thickness and strength about a honeycomb core. Unlike prior methods, a recess or trough of desired depth and width is formed in a desired region of the inlet face of the honeycomb die, which reduces the pressure required to flow batch material through the die in such region. Such reduced pressure requirement translates in an increased flow rate in such region under constant extrusion pressure. Thus by increasing the flow rate through a honeycomb extrusion die in an outer peripheral region of flow in this manner, improved skin formation around a honeycomb core is obtained during the forming process.

Abstract translation: 本发明公开了一种用于提供期望的批次流通过用于形成蜂窝结构的挤出模头的所需区域的方法和装置，更具体地说，涉及提高模具的皮肤形成区域中的批量流动，从而提供 期望的蜂窝芯的厚度和强度。 与现有方法不同，在蜂窝模具的入口面的所需区域中形成所需深度和宽度的凹槽或槽，这降低了在这种区域中流动批料通过模具所需的压力。 这种减压要求在恒定的挤压压力下在这样的区域中以增加的流速转化。 因此，通过以这种方式在流动的外周区域中增加通过蜂窝挤出模头的流速，在成形过程中获得蜂窝芯周围的改善的皮肤形成。

公开(公告)号：US08257623B2

公开(公告)日：2012-09-04

申请号：US12548891

申请日：2009-08-27

Applicant: John Charles Rector ,  David Robertson Treacy, Jr. ,  Kevin Lee Wasson

Inventor： John Charles Rector ,  David Robertson Treacy, Jr. ,  Kevin Lee Wasson

IPC: B29C47/92 ,  B28B17/00

CPC classification number: B29C47/92 ,  B28B3/24 ,  B28B3/269 ,  B28B7/346 ,  B29C47/0028 ,  B29C47/12 ,  B29C2947/92019 ,  B29C2947/92076 ,  B29C2947/92104 ,  B29C2947/92314 ,  B29C2947/92409 ,  B29C2947/92514 ,  B29C2947/92571 ,  B29L2031/60 ,  B29L2031/608

Abstract: An extrusion die is processed to alter the flow of extrudable material through the die by collecting data reflecting flow variations across the face of the die, constructing a graded resistance flow restrictor utilizing the data, and forcing an abrasive machining medium through the flow restrictor and die with the flow restrictor being arranged to deliver higher abrasive flow through die portions initially exhibiting low extrusion rates, the resulting die being useful for the manufacture of ceramic honeycomb bodies exhibiting a reduced incidence of shape defects attributable to die flow variations.

Abstract translation: 处理挤出模具以通过收集反映模具表面上的流动变化的数据来改变可挤压材料通过模具的流动，构建利用该数据的分级阻力流量限制器，以及通过流量限制器和模具迫使磨料加工介质 其中流量限制器被布置成将较高的磨料流通过最初呈现低挤出速率的模具部分，所得模具可用于制造由于模具流动变化而导致的形状缺陷的发生率降低的陶瓷蜂窝体。

公开(公告)号：US20110049743A1

公开(公告)日：2011-03-03

申请号：US12548891

申请日：2009-08-27

Applicant: John Charles Rector ,  David Robertson Treacy, JR. ,  Kevin Lee Wasson

Inventor： John Charles Rector ,  David Robertson Treacy, JR. ,  Kevin Lee Wasson

IPC: B29C47/92

CPC classification number: B29C47/92 ,  B28B3/24 ,  B28B3/269 ,  B28B7/346 ,  B29C47/0028 ,  B29C47/12 ,  B29C2947/92019 ,  B29C2947/92076 ,  B29C2947/92104 ,  B29C2947/92314 ,  B29C2947/92409 ,  B29C2947/92514 ,  B29C2947/92571 ,  B29L2031/60 ,  B29L2031/608

Abstract: An extrusion die is processed to alter the flow of extrudable material through the die by collecting data reflecting flow variations across the face of the die, constructing a graded resistance flow restrictor utilizing the data, and forcing an abrasive machining medium through the flow restrictor and die with the flow restrictor being arranged to deliver higher abrasive flow through die portions initially exhibiting low extrusion rates, the resulting die being useful for the manufacture of ceramic honeycomb bodies exhibiting a reduced incidence of shape defects attributable to die flow variations.

Abstract translation: 处理挤出模具以通过收集反映模具表面上的流动变化的数据来改变可挤压材料通过模具的流动，构建利用该数据的分级阻力流量限制器，以及通过流量限制器和模具迫使磨料加工介质 其中流量限制器被布置成将较高的磨料流通过最初呈现低挤出速率的模具部分，所得模具可用于制造由于模具流动变化而导致的形状缺陷的发生率降低的陶瓷蜂窝体。