Abstract
Aluminium alloy is difficult to be plated because of high chemical activity. In order to obtain electroless nickel plating with excellent adhesion to the substrate, the key lines is the pretreatment process. This study introduces several significant pretreatment processes of aluminium alloy surface at home and abroad for these years, and describes the principles of pretreatment processes. Finally, the development direction of pretreatment processes for aluminium alloy is forecasted.
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