Composition solution for electric nickel-plating on surface of magnesium alloy

Abstract

The invention discloses a composition solution for electric nickel-plating on the surface of a magnesium alloy. The composition solution comprises a zinc immersion liquid, an electric zinc plating liquid and a nickel-electroplating liquid. By adjusting the components of the zinc immersion liquid, the zinc electroplating liquid and the nickel electroplating liquid, a plating process is environmental friendly and safe, and a prepared plated layer is high in corrosion resistance, attractive in appearance and high in binding force with a substrate.

Description

Technical field

[0001] The invention relates to the field of electroplating technology, and in particular to a combined solution for electroplating nickel on the surface of a magnesium alloy. Background technique

[0002] As a kind of lightweight engineering structural material, magnesium alloy has high specific strength, high specific stiffness and superior shock absorption performance, and has a wide range of applications in the fields of transportation, communications, aviation, and aerospace. However, magnesium alloy has high chemical activity, low electrode potential, and loose surface oxide film, resulting in low protection performance, which restricts the application and development of magnesium alloy. This has aroused people's attention to the corrosion and protection of magnesium alloy parts. A lot of research has been carried out in the areas of magnesium alloy surface anodic oxidation, chemical conversion film, organic coating, surface plating, etc., especially the use...