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公开(公告)号:US4725391A
公开(公告)日:1988-02-16
申请号:US578841
申请日:1984-02-10
IPC分类号: B28B17/02 , B28B11/24 , B28B21/52 , C04B35/634 , C04B35/636 , H01G4/28 , C04B40/02
CPC分类号: C04B35/6365 , B28B11/243 , C04B35/634 , C04B35/63444 , C04B35/63488 , C04B35/636 , H01G4/28
摘要: A method is disclosed for extruding thin-walled ceramic bodies. The method involves mixing into a homogenized batch a granular ceramic, a binder, a soluble oxidizing agent and a matrix precursor in amounts sufficient to provide a substantially water-free extrudable mixture. The batch is extruded into an atmosphere containing SO.sub.2 which permeates the extrudate and reacts with the oxidizing agent to form SO.sub.3 in situ. The SO.sub.3 catalyzes polymerization of the furfuryl alcohol to a rigid solid which prevents deformation of the extrudate.
摘要翻译: 公开了用于挤出薄壁陶瓷体的方法。 该方法包括以足以提供基本上不含水的可挤出混合物的量将颗粒状陶瓷,粘合剂,可溶性氧化剂和基质前体混合到均质化批料中。 将该批料挤出至含有SO 2的气氛中,该气氛渗透挤出物并与氧化剂反应以原位形成SO 3。 SO 3催化糠醇聚合成刚性固体,防止挤出物变形。