陶瓷加工方法英文介绍.ppt

Ceramic Processing Methods;Novel Ceramic Processing Method ------Direct casting;Speaker:梁鸿昌;All the drain-casting techniques e.g. ,slip casting ,pressure casting ,and centrifugal casting involve a solid-liquid separation process to form a dense green body. The liquid flow is driven by either an external pressure gradient (slip casting ,pressure casting) or a body force in a centrifugal force field (centrifugal casting) ;;Slip casting is a low-pressure filtration method where capillary suction provides the driving force (on the order of 0.1~0.2MPa) for liquid removal and formation of a cast layer at a mold surface. Slip casting is generally a slow process, because the casting rate decreases parabolically with thickness of the cast layer ;;Pressing casting which is an established forming technique in fabrication of traditional clay-bases ceramic materials ,such as pottery and sanitary porcelain---and pressure filtration are modifications of slip casting that have been developed to accelerate the consolidation stage and to obtain a higher green density. ;;;;Extension about paragraph 4;Some pictures  about drain-casting equipment ;　　 　　注浆成型的应用：注浆成型是一种古老和传统的陶瓷成型方法，应用极为广泛。凡是形状复杂、不规则的、壁薄的、体积大且尺寸要求不严的器物都可以用注浆法成型。包括一般日用陶瓷类的花瓶(vase)、汤碗(bowl)、菜盘(plate)、茶壶(teapot)，卫生洁具类的坐便器(pedestal pan )、洗面盆(wash basin )，各种形状的工艺瓷器，还有相当一部分工业陶瓷、特种陶瓷产品等。 ;Speaker:梁鸿昌; 新款坐便器;That’s something about drain casting;That’s all for my part ;Ceramic forming;Thanks to different kinds of ceramic forming methods，the shape of the ceramics is various.;Ceramic forming methods;Present methods of manufacturing ceramic green bodies of a complicated shape on an industrial level include dry-pressing with subsequent machining, slip casting, pressure casting, and injection molding. Tape casting is used to produce thin sheets, mainly for the electronics industry. ;;;All these forming methods start with a suspension where the ceramic particles (powders ,whiskers, etc .)are mixed wit