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Main raw material and sintering behavior of grinding ball production line Apr 08, 2018

The sintering of the products supported by the grinding ball production line is not only the sintering behavior between the particles, but also to some extent the more important is the sintering behavior of the blanks. The sintering in the grinding ball production line is an important part of ceramic firing. The surface energy is one of the driving forces of particle sintering, and the topography affects the surface energy of the particles.

Grinding ball production line in the smooth surface of the granular particles, such particles than their surface area or surface energy is relatively small, so the sintering driving force is small, in the process of operation is not easy to sintering, ceramic sintered density is relatively low, hollow Big and many. Compared with granular particles, plate-like particles have a large specific surface area, a large driving force for sintering, and are easy to sinter.

Grinding ball production line particle size

When the grain of the grinding ball production line is relatively small during the operation, the wear mechanism is mainly plastic deformation and partial transgranular fracture, resulting in slight wear. When the crystal grains are coarse, the wear mechanism is mainly the occurrence of grain boundary fracture and serious wear, so the smaller the crystal grain is, the better the wear resistance of the ceramic is. Therefore, the sintering driving force is large, the sintering temperature is low, and the sintering density is high.

If the sintering temperature of the grinding ball production line is not suitable, the content of aluminum oxide is high and the wear resistance is not necessarily good. The key depends on the phase composition and microstructure of the ceramic ball. Using low-temperature rapid firing technology, significant energy-saving benefits can be obtained, and at the same time, the crystal grain growth of alumina ceramic balls can be suppressed, and the strength and toughness of the products can be improved, thereby improving the wear resistance of the porcelain balls.