| 摘要 |
PURPOSE:To prevent wears of particles and the wall of a vibration preventing device by hydrolyzing and polymerizing metal alcoxides or derivative therefrom, dispersing spherical particles containing electrolytic solution obtained therefrom in an electrical insulative liquid, and thereby forming an electrical viscous fluid. CONSTITUTION:Metal alcoxides, for ex. Si(OC2H2), are hydrolyzed and polymerized, and spherical silica is separated from alcohol solution and dried to provide spherical particles containing electrolytic solution. These spherical particles are dispersed in electrical insulative liquid such as silicon oil, wherein the amount of used particles shall normally be 5-50vol.% of the electric insulative liquid. This electrical viscous fluid is used to vibration preventing device, and the viscosity of the liquid in a piping 4 is varied by impressing voltage on electrodes 10, 11, and thereby the damping performance and dynamic rigidity are adjusted. Therein the wall and particles are substantially free of wear even after oscillative reversals corresponding to running for 100 thousands of kms have been applied to this vibration preventing device. |
