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给出了化学共沉淀法制备ZnO压敏电阻粉料的原则工艺流程；对用化学法粉料制作的压敏电阻作了初步电性能检测，在进行8／20μs雷电冲击时发现其单位体积可承受较大的冲击能量，并具有小的U1mA变化率。
The principle process of ZnO varistor powder prepared by chemical coprecipitation method is given. The initial electrical properties of piezoresistors made by chemical powder are tested. The unit volume can be found in 8/20 μs lightning impulse Bear greater impact energy and have a small U1mA rate of change.