1.Raw materials should be selected
Factors affecting the quality of high-voltage porcelain dielectric capacitors, in addition to the composition of porcelain materials, optimize the process of manufacturing, safety capacitor manufacturers strict process conditions is very important. Therefore, the raw materials should be considered both cost and purity, and when choosing industrial pure raw materials, we must pay attention to the applicability of raw materials.
2. Preparation of molten block
The quality of the preparation of the molten block has a great impact on the fineness of ball milling and firing of porcelain, such as low synthesis temperature of the molten block, the synthesis is not sufficient. The subsequent process is not conducive. Such as synthetic material residual Ca2+, will hinder the rolling film process: such as synthesis temperature is high, so that the frit is too hard, will affect the ball milling efficiency: the introduction of impurities in the grinding medium will reduce the powder activity, resulting in the firing temperature of porcelain parts.

3. Forming process
成型时要防止厚度方向受力不均，坯体封闭气孔过多，如果有较大气孔或层裂纹产生，会影响瓷体的电气强度。
4. Firing process
Firing system should be strictly controlled, take the excellent performance of temperature control equipment and good thermal conductivity of the kiln equipment.
5. Encapsulation
密封材料的选择、密封工艺的控制和瓷件表面的清洁处理对电容器的特性影响很大。好这一点，必须选择防潮性能好、与瓷体表面结合紧密、电气强度高的封装密封材料。目前，大多数选用环氧树脂，少数产品也有选用酚醛树脂进行密封的。也有采取先涂绝缘漆，再用酚醛树脂封装的方法，这对降低成本有一定意义。大型生产线大多采用粉末封装技术。
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