This paper introduces the design of high voltage low current pulse power supply with two polarities, which is used in a new type chemical surface disposal.
针对一新型表面处理工艺，设计了一种符合工艺要求、可输出双向不对称脉冲的高压脉冲电源实现电路。
The phosphorated fluid not only is applied to ferrous metal and its alloy, but also to surface disposal of aluminum, zinc, copper, nickel, chrome and various materials and alloys.
磷化液不仅应用于黑色金属及其合金上，而且已应用到铝、锌、铜、镍、铬等各种材质和合金上的表面处理。
Surface disposal: brass, red antique copper, bronze.
表面处理：黄铜、红古铜、青古铜。
Surface disposal: brass, red antique copper, bronze.
表面处理：黄铜、红古铜、青古铜。
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