Plastic part surface appearance micro-roughening process

Abstract

The invention provides a plastic part surface appearance micro-roughening process. The plastic part surface appearance micro-roughening process comprises the workpiece pretreatment process and the roughening process, wherein the workpiece pretreatment process belongs to the degreasing process comprising the operation steps of S1, pretreating workpieces, conducting pretreatment on the ABS workpieces to be processed, cleaning the surfaces of the ABS workpieces through clean water to remove dust and sundries on the surfaces of the ABS workpieces, immersing the ABS workpieces to be processed intoa 20% acetone solution for 5-10 s, conducting high-temperature drying on the ABS workpieces through a drying oven at the drying temperature of 80-90 DEG C and maintaining the constant temperature forat least 8 h; and S2, preparing an etching solution comprising 10 g / L of potassium permanganate and 30 ml / L of industrial sulfuric acid. An improvement is made on an existing plastic part surface appearance micro-roughening process. The plastic part surface appearance micro-roughening process provided by the invention has the advantages of reasonable process design, good pretreatment effect, highdefouling capacity, high roughening speed, good effect, high plating layer bonding force, consumption reduction of chromic anhydride and cost reduction. Therefore, the problems proposed by the invention are effectively solved.

Description

technical field [0001] The invention relates to the technical field of plastic parts processing, and more specifically relates to a process for micro-roughening the surface appearance of plastic parts. Background technique [0002] Plastic plating products have the properties of both plastic and metal. It has small specific gravity, good corrosion resistance, easy molding, metallic luster and metal texture, as well as electrical conductivity, magnetic conductivity and welding properties. It can save complicated mechanical processing procedures and metal materials, and is beautiful and highly decorative. At the same time, it also improves the mechanical strength of plastic parts. Because the metal coating has high stability to external factors such as light and weather, after the plastic is electroplated with metal, it can prevent the plastic from aging and prolong the service life of the plastic parts. With the rapid development of industry, the application of plastic elec...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a micro-roughening process for the surface appearance of plastic parts to solve the problem of using an organic solvent (such as ethylene dichloride or acetone) to pre-process the ABS workpiece before the coarsening of the chromic acid-sulfuric acid mixture proposed in the above-mentioned background technology. Treatment to enhance the roughening effect, but the price of the organic solvent is relatively high; if the roughening solution is used for repeated roughening, the roughening effect can also be enhanced, but it directly leads to an increase in the amount of chromic anhydride, which greatly increases the cost, and the pollution is more serious. Subsequent roughening It is more difficult to process the chemical solution, and there are problems and deficiencies in the use of large limitations