Insulating ring with Silicon nitride material according to the size and density of the internal defects (e. g. cracks, cracks) and the stress of the action area, Different modes of material removal: When the stress field formed by the cutting blade contact workpiece is small, The material is mainly removed by plastic deformation; When the stress field is larger than the defect size, The brittle microcrack fracture plays a main role.The department is one of the occupational hazards of the Chinese billet in the industrial kiln to carry out high temperature forging, temperature control reached 1100℃, so the porcelain manufacturing industry workers in summer if the production workshop is not natural ventilation, it is easier to produce the department.
