Introduction to Ceramic Wet Forming

In order to meet the requirements of preparing complex-shaped ceramic products, a variety of wet forming techniques have been developed and developed. As mentioned above, the molding object of dry molding is a mixture of ceramic powder and air. The purpose of molding is to make the mixture have a certain shape and strength, and to eliminate the air in the green body as much as possible. Different from dry molding, the molding object of wet molding is a colloidal system formed by mixing ceramic powder with water or other organic media. The purpose of molding is to make the colloidal system have a certain shape and strength, and eliminate as much as possible. Water or other organic medium in the green body. Therefore, wet forming may also be referred to as colloidal forming. Compared with dry forming, ceramic wet forming can form parts of large size and complex shape, and can well control various impurities (inclusions, agglomerates, etc.) inside the green body during the forming process through a special forming process , so as to prepare high-performance ceramic parts.

The main process of ceramic wet molding is: mixing of ceramic powder and medium, molding (solidification), removal of medium, and drying. Due to the different media selected, the mechanism of forming and solidification is different, and various wet forming methods are very different and have their own characteristics.