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1. 发明授权

US4424280A Ceramic foams and process of preparing the same 失效
标题翻译：陶瓷泡沫及其制备方法
公开(公告)号：US4424280A
公开(公告)日：1984-01-03
申请号：US308617
申请日：1981-10-05
申请人： Henri-Bernard Malric
发明人： Henri-Bernard Malric
IPC分类号： B28C3/00 , C04B33/30 , C04B38/10 , C04B21/02 , C04B43/02 , C04B43/10
CPC分类号： B28C3/00 , C04B33/30 , C04B38/10
摘要： The disclosure describes ceramic foams, for example made of clay, and a process for preparing these foams. Once there is obtained a mixture defining a slip, the latter is caused to be foamed by the addition of controlled quantities of a gas, such as air, thus making it possible to reproduce foams having predetermined physical properties. It is preferable to dry the foam under conditions where the temperature is heterogeneous and in the absence of ventilation. This operation can be carried out by placing the foam under heating elements at a temperature between 30.degree. C. at the start to 100.degree. C. towards the end of the drying, while practically preventing any ventilation in the vicinity of the foam. This process is mainly advantageous in that it enables one to control the physical properties of the foam obtained thereby. This foam can be used as an industrial absorbent, acoustical insulating material, fire-wall, thermal insulating material, etc. by varying the density of the foam.
摘要翻译：本公开描述了陶瓷泡沫，例如由粘土制成的泡沫，以及制备这些泡沫的方法。一旦获得了限定滑移的混合物，则通过加入受控量的气体（例如空气）使后者发泡，从而可以再生具有预定物理性能的泡沫。优选在温度异质的条件下并且在没有通气的条件下干燥泡沫。该操作可以通过将泡沫放置在加热元件的起始温度在30℃之间的温度下在100℃直到干燥结束，同时实际上防止泡沫附近的通风。该方法的主要优点在于其能够控制由此获得的泡沫的物理性能。该泡沫可以通过改变泡沫的密度而用作工业吸收剂，隔音材料，防火墙，隔热材料等。

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