In high voltage electrical products

in order to ensure the products have good electric conductivity

its core components normally use aluminum and aluminum alloy silver-plated processing

but such parts must carry on a pretreatment before the silver-plated

aluminum and aluminum alloy parts need to conduct live-treatment

as well as special middle treatment.In this program

the middle treatment process belongs to zinc-dipping process

and is optimized for ordinary zinc-dipping process.Through reduction of thickness of main ingredient to reduce viscosity and adding several kinds of metal ions（for example nickel

lead and copper）

metal ions and zinc ions shall deposit together to change potential of electrodes and to improve binding force between zinc and base body.The results show that

through improvement of the solution formula of ordinary zinc-dipping process

avoid expensive outsourcing price of zinc-dipping solution

improve qualified rate and reduce production cost.