Metal plating piece and preparation method thereof

Abstract

The invention discloses a metal plating piece which comprises a metal base material, a chemical nickel layer, a semi-finished nickel layer and an acid copper layer. The chemical nickel layer, the semi-finished nickel layer and the acid copper layer are sequentially arranged on the metal base material. The between-layer potential differences of the metal plating piece are high, the corrosion resistance is high, and ultrahigh metal texture is achieved. The invention further discloses a preparation method of the metal plating piece. The preparation method includes the following steps that the metal base material is provided or prepared; the chemical nickel layer is plated on the metal base material; the semi-finished nickel layer is plated on the chemical nickel layer; the acid copper layer is plated on the semi-finished nickel layer; and the metal plating piece of the metal base material / chemical nickel layer / semi-finished nickel layer / acid copper layer structure is obtained. The metal plating piece manufactured according to the preparation method of the metal plating piece is good in metal texture and high in corrosion resistance.

Description

technical field [0001] The invention relates to the technical fields of electronic equipment and communication equipment, in particular to a metal plated part and a preparation method thereof. Background technique [0002] At present, the surface film layer is plated on the surface of metal parts such as die-casting aluminum alloy, especially the electroplated film layer on the surface of the metal part after sandblasting, so that the plated part with a strong metal texture effect can be obtained. However, the surface of the existing metal parts is uneven or microscopic unevenness is formed on the surface of the metal part after sandblasting. The tip effect of the current during electroplating causes the thickness of the uneven film to be inconsistent. When doing the salt spray test, the salt spray liquid will first erode the film thickness In the thin position, corrosion starts from the lower film thickness, which in turn causes other areas to also start to corrode. [000...

AI Technical Summary

Problems solved by technology

However, the surface of the existing metal parts is uneven or microscopic unevenness is formed on the surface of the metal part after sandblasting. The tip effect of the current during electroplating causes the thickness of the uneven film to be inconsistent. When doing the salt spray test, the salt spray liquid will first erode the film thickness In the thin position, the corrosion starts from the lower film thickness, which in turn causes other areas to also start to corrode

[0003] Based on the above problems, a new metal plating is urgently needed to solve the problem of poor corrosion resistance of existing metal plating

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