一、前言 真空蒸镀铝膜材料用做金属化电容器比之用轧制铝箔做电容器具有许多优点:(1)蒸镀铝膜薄,一般为300　(而铝箔7μm厚),故用前者做电容器,体积小1/3—1/4;(2)节约铝量,当将铝板轧成 7 μm厚的铝箔时,不仅要用多道轧机,尤其多辊轧机和高技术以及大量能耗,且用铝量为18.9 I. Preface The vacuum evaporation of aluminum film material used as a metalized capacitor than the use of rolled aluminum foil capacitor has many advantages: (1) evaporation of aluminum thin, usually 300 (and aluminum foil 7μm thick), so the former capacitor , Small size 1 / 3-1 / 4; (2) to save the amount of aluminum, aluminum plate rolled into 7 μm thick aluminum foil, not only with multi-channel rolling mill, especially multi-roll mills and high-tech and a lot of energy, The amount of aluminum is 18.9