Preparation of the Raw Material sha

Preparation of the Raw Material shaping processes for traditional ceramics require that the starting material be in the form of a plastic paste This paste is made of fine ceramic powders mixed with water, and its consistency determines the ease of forming the material and the quality of the final product. The raw ceramic material usually occurs in nature as rocky lumps, and reduction to powder is the purpose of the preparation step in ceramics processing. Techniques for reducing particle size in ceramics processing deliver mechanical en ergy in various forms, such as impact, compression and attrition. The term comminution is used for these techniques, which are most effective on brittle materials, including cement, metallic and brittle metals. Two general types of comminution operations are ores, distinguished crushing and grinding. crushing refers the reduction of large lumps from the mine to smaller sizes to for subsequent further reduction. Several stages may be required(eg primary crushing.