In the late Neolithic period, the production technology of pottery mainly relied on hand carving. Pottery workers shape clay by hand, carve the shape of the object bit by bit, then naturally dry and fire it. This method is simple and primitive, and requires high skill and patience. With the progress of society and the development of technology, the tire mold method is gradually adopted to make pottery.
The tire mold method refers to making a mold for pottery first, then putting clay into the mold and shaping the pottery by scraping and pressing. This method can improve the production efficiency, ensure the shape consistency of pottery, and can produce the same kind of pottery in large quantities. Ceramic is a kind of hard and heat-resistant insulating material made of nonmetallic materials.
It is widely used in industry, architecture, daily necessities and works of art. Ceramics are mainly made of clay or clay, which are formed by molding, drying and sintering. In addition to clay, other auxiliary materials, such as quartz, feldspar and minerals, can be added to improve the properties of materials. Ceramics can be classified according to different characteristics and uses.
Common classifications include primitive ceramics (such as pottery and porcelain), structural ceramics (such as ceramic tiles and ceramic tubes), functional ceramics (such as ceramic tools and ceramic insulators) and advanced ceramics (such as alumina ceramics and silicon nitride ceramics). Ceramics have many characteristics and advantages.
It has good high temperature resistance and can maintain structural stability in high temperature environment. Secondly, ceramics have very high hardness and good wear resistance. In addition, ceramics also have good insulation, corrosion resistance and chemical stability.