The birth of the ceramic mold began with a ceramic wheel made of clay as a binder. After years of development, the technical level of ceramic molds has been significantly improved. With the continuous development of the types of binder materials and the improvement of mold types, ceramic molds account for a large proportion of the total mold.
In addition to its development situation, we are more concerned about the type and structure of ceramic molds. Ceramic molds can be easily divided into three categories, namely structural ceramic molds, electronic ceramic molds and process ceramic molds. The use and structure have different performances.
The structural part ceramic mold is formed by powder molding, so the hardness is relatively high, and from the structural point of view, it can be divided into several parts such as a mold, a lower mold, a concave mold, and sometimes a mandrel is required. In order to improve the service life of the structural ceramic mold and the consistency of the product, it is required to use tungsten steel as much as possible for the working part of the die and the mandrel. The shape of the upper and lower molds is simple to produce a product with large output. Tungsten steel can also be used; but if the shape is too complicated If possible, use mold steel to facilitate processing.
The electronic ceramic mold is mainly a mold for molding a ceramic capacitor, a varistor, and a ceramic heating sheet. The pressing density of electronic ceramic molds varies depending on the product. It is also composed of three parts: upper mold, lower mold and concave mold, but attention should be paid to the matching gap between them. If the gap is not suitable for gold, it causes problems such as delamination and cornering.
Process ceramic molds are relatively simple and mostly wood molds, generally the shape is not too complicated, so it is more suitable for mass production of ceramic molds for life and decoration. The ceramic products used for decoration around us are basically made with such molds.