keywords:Yttria stabilized zirconia beads,Cerium stabilized zirconia beads,Sandblasting polishing zirconia beads,Zirconium beads,Surface shot peening treatment
Problems and Solutions
Fraunhof study of mechanics of materials researchers in the world for the first time, the successful application of shot peening technology in ceramic, and greatly improve the use strength of ceramics, the effect even more than by the conventional method of general trouble, that is by changing the material properties and the development of new methods to increase its strength. Study on the system of deformation and fracture properties of ceramics show, in the shot peening process, the formation of nodular or pellet size and surface deformation and compressive pre stress has a close relationship, that is the cause of the cracks and the nodular size parts directly related to the. The results of this research brings a great breakthrough in technology. In the laboratory, people use different ceramic materials through the process parameters to select a range and suitable ductile material, the strength of the material surface layer is improved by 4 times, even while also reducing the brittleness of ceramics.
The important significance of
Despite widespread thorough research that ceramic materials with potential, but don't expect the industry will in the near future to produce the strength and toughness are good ceramic products. Because there is a big problem, namely the processing properties of ceramic materials is too bad. However, the use of shot peening technology can overcome the shortcomings of ceramic and find its new application fields, for example, can be applied to the surface layer properties play a decisive role parts, such as sliding bearing and rolling bearing wear resistance and the control valve and the cylinder piston rod bending fatigue strength improvement etc.. In addition, the technology has a potential that can't be neglected, it can make up for the inadequacy of processing loss, namely the use of processing technology of some fast affordable instead of with great care and hard machining process trouble.
Forecast of the prospect
The first successful on the ceramic rolling bearing and the mold process of shot peening experiment, thus for shot peening technology used in the treatment of high quality ceramic has opened up a new world, it also has important significance for improving the quality of ordinary ceramic materials.