Aluminizing process with good permeability preventing property of cladding layer

Abstract

The invention relates to the technical field of electroplating processes, in particular to an aluminizing process with a good permeability preventing property of a cladding layer. The process comprises the following steps of coarsening; neutralizing; adjusting; palladium activating; reducing; chemical nickel-plating; copper plating; nickel alloy plating; anodizing aluminizing; and drying. A binding force between the cladding layer and a plastic is increased, and phenomena such as loosening, bubbling and cracking of an electroplated cladding layer are avoided, so that the surface durability ofa product is prolonged, and the cladding layer has comprehensive properties such as excellent high temperature resistance and corrosion resistance, and the magnetic conductivity can be smaller than 1.2. Anodizing aluminizing brings a better metallic luster.

Description

technical field [0001] The invention relates to the technical field of electroplating technology, and more specifically, the invention relates to an aluminum plating technology with good coating anti-permeability. Background technique [0002] Plastic electroplating refers to the whole process of using certain processing methods to first generate activated centers on the plastic surface, using electroless plating or displacement plating to form a conductive film, and then using conventional electroplating to thicken the whole process. Compared with metal parts, plastic electroplating products can not only achieve a good metal texture, but also reduce the weight of the product. While effectively improving the appearance and decoration of the plastic, it also improves its electrical, thermal and corrosion resistance. performance. [0003] However, at present, many electroplating processes do not properly treat the plastic surface before electroplating treatment, resulting in ...

AI Technical Summary

Problems solved by technology

[0003] However, at present, many electroplating processes do not properly treat the plastic surface before electroplating treatment, resulting in unstable and uneven coatings after electroplating, poor deep plating ability of coatings, brittle coatings, short service life, and easy Severe wear and tear on the surface exposes the plastic background color and affects the aesthetics. At the same time, the bonding force between the plastic and the coating is not high, which leads to problems such as blistering and cracking of the coating

In addition, the resistance value and magnetic permeability of the coating obtained by the electroplating solution during electroplating are also high, which limits its use.

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