| 摘要 |
<p>PURPOSE:To produce a voltage nonlinear resistor having enhanced discharge resistance and service life at low cost. CONSTITUTION:The method for producing a voltage nonlinear resistor by forming, an insulation layer on the side face thereof comprises steps for coating the side face of a voltage nonlinear resistor element 1 with a ceramic based dielectric material and drying, firing the resistor element 1 at 1200-1500 deg.C to form a ceramic based dielectric layer 2, coating the dielectric layer 2 with a bisphenol based liquid epoxy resin by 50mum thick or more, and curing the epoxy resin at low temperature to form a double dielectric layer 3 on the side face. The ceramic based dielectric layer 2 having rough surface enhances the adhesion of the epoxy resin dielectric layer 3 and the low temperature curing of epoxy resin causes no thermal stress in the element body. This method enhances discharge resistance and protects the element against degradation.</p> |
