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1. 发明授权

US5486331A Process for degreasing ceramic molded bodies 失效
标题翻译：陶瓷成型体脱脂工艺
公开(公告)号：US5486331A
公开(公告)日：1996-01-23
申请号：US225073
申请日：1994-04-08
申请人： Masakazu Adachi , Kouichi Imao
发明人： Masakazu Adachi , Kouichi Imao
IPC分类号： C04B35/632 , C04B35/638 , C04B35/64 , C04B33/32
CPC分类号： C04B35/64 , C04B35/632 , C04B35/638
摘要： A process for degreasing ceramic molded bodies containing a large quantity of paraffin wax includes a constant-temperature heating conducted for a certain period of time appropriately determined according to the size and shape of the ceramic molded bodies, at a temperature immediately below the temperature for the ceramic molded bodies to begin contraction, essentially in a low temperature region wherein the contraction occurs due to liquefaction of the paraffin wax and optionally in a high temperature region wherein the contraction occurs due to thermal decomposition of the paraffin wax. According to the process of the invention, build-up of stress in the ceramic molded bodies by heating is prevented and a temperature gradient between the surface and the inside of the molded bodies is leveled, so that crack-free molded bodies are obtained with a shortened degreasing schedule.
摘要翻译：含有大量石蜡的含有大量石蜡的陶瓷成型体的脱脂方法包括在温度以下的恒温下进行恒温加热，该温度适当地根据陶瓷成型体的尺寸和形状适当确定，陶瓷成型体开始收缩，基本上在低温区域，其中由于石蜡的液化而发生收缩，并且任选地在由于石蜡的热分解而发生收缩的高温区域中。根据本发明的方法，防止了通过加热在陶瓷成型体中形成应力，并且使成型体的表面与内部之间的温度梯度平坦化，从而获得无裂纹的成型体，缩短脱脂时间表。

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