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公开(公告)号：US06238618B1
公开(公告)日：2001-05-29
申请号：US09408711
申请日：1999-09-30
IPC分类号： B28B320
CPC分类号： C04B35/185 , C04B38/064 , C04B2111/00129 , C04B2111/00793 , C04B38/0645 , C04B38/068 , C04B38/0675
摘要： Porous sintered ceramic materials having mullite as its primary phase and a method for producing them. The method includes preparing a plasticizable raw material mixture comprised, by weight, of 75 to 99% pre-reacted mullite powder, and 1.0 to 25% of a water-swelling clay, adding an organic binder system to the mixture and mixing the mixture to form an extrudable mixture, and extruding the mixture to form a substrate of the desired configuration. The green body is dried and fired for a time and at temperature sufficient to form a sintered mullite structure having a narrow through-pore size distribution comprised of pores exhibiting an average intrusion-pore size of between about 2-15 &mgr;m, and a total intrusion porosity, as measured by Hg intrusion method, of at least 30%.
摘要翻译： 具有莫来石作为其主相的多孔烧结陶瓷材料及其制造方法。 该方法包括制备可塑化的原料混合物，该混合物包含75-99％的预反应莫来石粉末和1.0-25％水溶性粘土，向混合物中加入有机粘合剂体系，并将该混合物混合 形成可挤出的混合物，并挤出混合物以形成所需构型的基材。 将生坯干燥并煅烧一段时间并且在足以形成具有窄通孔尺寸分布的烧结莫来石结构的温度下，所述烧结莫来石结构包括平均侵入孔径在约2-15μm之间的孔和总入侵 通过Hg侵入法测量的孔隙率至少为30％。
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公开(公告)号：US5466415A
公开(公告)日：1995-11-14
申请号：US326380
申请日：1994-10-20
CPC分类号： B28B3/269
摘要： Thick-skinned extruded metal honeycomb structures, and a method and apparatus for making them, are disclosed wherein a plasticized powder metal extrusion batch is extruded though a die assembly comprising a die and annular mask, the mask having a central outlet for extrusion of the skin and honeycomb core and an extrudate reservoir adjacent the central outlet, the die and mask cooperating to form a skinforming gap fed by the die and by the extrudate reservoir, such that batch material supplied from the reservoir and directly from the die combines to form a thickened outer skin which is integral with, and resistant to separation from, the honeycomb core.
摘要翻译： 公开了一种厚皮挤出金属蜂窝结构体及其制造方法和装置，其中增塑粉末金属挤出批料通过包含模头和环形掩模的模具组件挤出，该掩模具有用于挤出皮肤的中心出口 以及与中心出口相邻的蜂窝芯和挤出物储存器，所述模具和掩模协作以形成由模具和挤出物储存器供给的成形间隙，使得从储存器供应并直接从模具组合的批次材料组合以形成增厚的 外壳与蜂窝芯一体，并且与蜂窝芯分离。
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公开(公告)号：US5403540A
公开(公告)日：1995-04-04
申请号：US604201
申请日：1990-10-29
CPC分类号： H05B6/106
摘要： A method is presented for uniformly heating plastically deformable material, which comprises particles of electrically conducting matter. This method comprises inducing an electric current, or causing hysteresis loss within such material, by using electromagnetic radiation with frequency between about 50 Hertz and about 10 MegaHertz, to cause heating of the material.
摘要翻译： 提出了一种均匀加热塑性变形材料的方法，其包括导电材料颗粒。 该方法包括通过使用频率在约50赫兹和约10兆赫兹之间的电磁辐射来引起电流或在这种材料内引起磁滞损耗，以引起材料的加热。
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