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公开(公告)号：US4954460A
公开(公告)日：1990-09-04
申请号：US399924
申请日：1989-08-29
CPC分类号： C04B38/08
摘要： A water-permeable ceramic material is made of a porcelain particulate material as the principle component, one or more primary binders selected from starch adhesives, organic binders, clay and water glass, and one or more secondary binders selected from frit, glaze and glass powder. The principal component is selected from one or more porcelain materials including a fired mixture of pottery stone, kaolin and feldspar; porcelain wastes, and other porcelain materials such as road-surfacing porcelain color aggregates, and is classified to have a particles are of relatively high bulk density and very low porosity. The mix is shaped by a pressing machine to a tabular or tubular form suited to the specific use of the final product. The pressure of the pressing machine is adjusted to an amount of 30-200 kg/cm.sup.2. After shaping, the resultant compact is sintered at a temperature up to the melting point of the porcelain particles to produce the ceramic material. The ceramic material has a continuous porous structure which provides an effective water-permeable property. The individual particles have interstices therebetween having an average pore diameter of at least 0.1 mm; the composite material has an apparent porosity of 10-53%, a water permeability of at least 50 ml/min.cm.sup.2, and a normal incident absorptivity of at least 65% within or throughout the frequency range of 500-5,000 Hz.
摘要翻译： 透水陶瓷材料由陶瓷颗粒材料作为主要组分制成，一种或多种主要粘合剂选自淀粉粘合剂，有机粘合剂，粘土和水玻璃，以及一种或多种次要粘合剂，其选自玻璃料，釉料和玻璃粉末 。 主要组分选自一种或多种瓷材料，包括陶石，高岭土和长石的烧制混合物; 陶瓷废料和其他瓷材料如路面瓷色彩聚集体，并且被分类为具有相对高的堆积密度和非常低的孔隙率的颗粒。 混合物通过压制机成形为适于特定使用最终产品的片状或管状形式。 压制机的压力调节到30-200kg / cm2的量。 成型后，将所得的压块在高于瓷粒的熔点的温度下烧结，制成陶瓷材料。 陶瓷材料具有连续的多孔结构，其提供有效的透水性。 单个颗粒之间具有间隙，平均孔径至少为0.1mm; 复合材料的表观孔隙率为10-53％，水渗透率至少为50ml / min·cm 2，在500-5,000Hz的频率范围内或整个频率范围内的正常入射吸收率至少为65％。
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