ABS plastic surface metal layers and preparing method thereof

Abstract

The invention discloses ABS plastic surface metal layers and a preparing method thereof and relates to the field of plastic surface processing. The ABS plastic surface metal layers include a chemical nickel layer, an impact nickel layer, a semi-bright nickel layer, a PVD anticorrosion alloy layer and a PVD color layer which are arranged sequentially from the ABS plastic surface, wherein the chemical nickel layer is 0.05 micron - 0.5 micron thick, the impact nickel layer is 1 micron - 3 microns thick, the semi-bright nickel layer is 3 microns - 10 microns thick, the PVD anticorrosion alloy layer is 0.1 micron - 2 microns thick, and the PVD color layer is 0.1 micron - 0.3 micron thick. The preparing method comprises the steps that ABS plastic preprocessing is conducted, the preprocessed ABS plastic is sequentially electroplated with the impact nickel layer and the semi-bright nickel layer, wiredrawing is conducted on the ABS plastic semi-bright nickel layer, hydrocarbon vacuum degreasing and drying are conducted on the wiredrawn ABS plastic electroplated piece, and then the ABS plastic electroplated piece is plated with the PVD anticorrosion alloy layer and the PVD color layer to achieve the preparation of the metal layers on the ABS plastic.

Description

technical field [0001] The invention relates to plastic surface treatment technology, in particular to a metal layer on the surface of ABS plastic and a preparation method thereof. Background technique [0002] At present, the plastics widely used in automotive electroplating include ABS, PC+ABS and PA. The plastics used in bathroom products mainly include ABS plastics. Plastic electroplating is to adopt a certain processing method. First, obtain a conductive film on the plastic surface, and then use electroplating. thickening process. Therefore, the plastic electroplating process can also be simply divided into two steps. The first step is the pretreatment of plastic electroplating: degreasing → roughening → neutralization → catalysis → degelling → chemical nickel; the second step is plastic electroplating: pre-plating nickel → bright copper → semi-bright nickel → bright nickel → nickel seal → bright chrome. This process will produce a large amount of waste water and heav...

AI Technical Summary

Problems solved by technology

[0007] One of the purposes of the present invention is to solve the problems existing in the existing ABS plastic electroplating. If copper electroplating and chromium electroplating are required, electroplating copper will lead to poor corrosion resistance of the entire electroplating layer, and a thick nickel layer needs to be plated for corrosion resistance. Protection, electroplating hexavalent chromium, very unenvironmental protection, great harm to production personnel and environmental products, providing a metal layer on the surface of ABS plastic