| 摘要 |
<p>PURPOSE:To obtain a voltage nonlinear resistor excellent in electric characteristics by adding and mixing acid during a mixing process at the time of manufacturing, and adjusting pH, viscosity, and the amount of water content of the mixed slurry to the specified values. CONSTITUTION:When zinc oxide and specified binder are mixed, acid, preferably weak acid is added and mixed. Parameters of the mixed slurry are set as follows and granulation is performed; pH is 4-6.8 preferably 5-6.5, viscosity is 300cp or less preferably 150cp or less, and the amount of water content is 40wt.% or less preferably 35wt.% or less. Thereby, solid granulated powder with high bulk density can be obtained. When a sintered body is obtained by molding and sintering the granulated powder, internal defect, lamination, etc., can be prevented, and a voltage nonlinear resistor excellent in electric characteristics can be obtained.</p> |
