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2. 发明申请

WO2006034557A1 METHOD OF EXTRUSION OF PARTICULATE PASTES OR SUSPENSIONS 审中-公开
标题翻译：挤出颗粒糊剂或悬浮液的方法
公开(公告)号：WO2006034557A1
公开(公告)日：2006-04-06
申请号：PCT/AU2005/001516
申请日：2005-09-29
申请人： 3H INVENTORS APS , STANG, Henrik , FREDSLUND-HANSEN, Helge , PUCLIN, Tony
发明人： STANG, Henrik , FREDSLUND-HANSEN, Helge , PUCLIN, Tony
IPC分类号： B28B3/20
CPC分类号： B28B7/46 , B28B3/20 , B29C47/92 , B29C2947/92514 , B29C2947/9259 , B29C2947/926 , B29C2947/92885 , B29C2947/92895 , B29C2947/92904 , B30B9/062
摘要： The extrusion of a green body from a paste or suspension of particulate solids in a liquid is conducted by a process which includes the steps of introducing flowable paste or suspension into an inlet end of a moulding passage which is defined by walls having at least one partially liquid-permeable wall section; applying pressure to the paste or suspension, thereby to remove from the passage at least a major portion of the liquid of the paste or suspension, by establishing a pressure differential across the liquid permeable section, so as to form in the passage a non-flowable body of consolidated particulate solids of the paste or suspension, and to extrude the non-flowable body progressively from an outlet end of the passage. The magnitude of the pressure, the rate of removal of liquid and the rate of extrusion are controlled to maintain the non-flowable body at a length which extends back from the outlet end of the passage and across and beyond the liquid-permeable wall section to provide a portion of the body upstream of the liquid-permeable wall section. Liquid is removed from the passage by constant pressure filtration in which liquid being forced from the suspension is filtered through the portion of the non-flowable body maintained upstream of the liquid permeable section.
摘要翻译：将生坯从糊状物或液体中的固体颗粒悬浮液挤出通过包括以下步骤的方法进行：将可流动的浆料或悬浮液引入模制通道的入口端，所述入口端由具有至少一部分透液壁部分; 向浆料或悬浮液施加压力，从而通过在液体可渗透部分上形成压力差从浆液或悬浮液的至少大部分液体中除去浆料或悬浮液的液体，从而在通道中形成不可流动的膏体或悬浮液的固体颗粒固体的主体，并且从通道的出口端逐渐挤出不可流动的主体。控制压力的大小，液体的去除速率和挤出速率，以将不可流动的本体保持在从通道的出口端向后延伸并且跨过和超过液体可渗透的壁部分的长度，以在液体可渗透的壁部分的上游提供身体的一部分。通过恒压过滤从通道中除去液体，其中从悬浮液中被迫的液体通过保持在液体可渗透部分上游的不可流动体的部分被过滤。

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