preplating meaning in Chinese
镀前处理
Examples
- ( 1 ) first , metallizing abs plastics surface by chemical coarsing , metal ion absorption , metal ion reducing and chemical copper - plating . then , the copper - coating was thickened by electroplating in order to improve adhesion between following - coating and plastics matrix , and nickel was preplating . finally , ni - sic composite was plated
( 1 )通过反复实验，确定工艺流程：首先通过粗化、敏化、活化和化学镀铜，使塑料表面金属化，再电镀铜加厚铜镀层，增强后续镀层与塑料基体的结合力，然后预镀镍，最后电镀ni ? sic复合镀层。