在电加工中。为了保证凹凸模的配合间隙,需要对凸模(电极)进行适当的腐蚀。制造阶梯电极也经常用腐蚀的办法。目前普遍采用强酸,或混合酸作腐蚀剂的化学腐蚀法。这类腐蚀液有极强烈的腐蚀作用,使用和保管都很不方便,如稍不留意就会烧伤操 In electrical processing. In order to ensure the punch and die with the gap, you need to punch (electrode) for proper corrosion. The process of making ladder electrodes is often done with corrosion. Currently widely used acid, or mixed acid as etchant chemical etching method. Such corrosive liquid has a very strong corrosive effect, use and storage are very inconvenient, such as slightly do not pay attention to burn operation