High-precision manufacturing process of a mobile phone metal sign

Abstract

The invention discloses a high precision manufacturing technology of a mobile phone metal label. The high precision manufacturing technology comprises the steps of degreasing treatment of the surfaceof a metal plate, photosensitive adhesive preparation and screen printing, exposure, developing, etching, electrophoresis painting and drying. Through the acid resistance and light sensitivity of polyvinyl cinnamate and the high resolution of phthalocyanine, configured photosensitive adhesive has super-high corrosion resistance and light sensitivity, it can be ensured that the photosensitive adhesive can not fall off due to corrosion, and the problem that precision is poor due to etching in the later period is avoided; by using a horizontal spray etcher to conduct etching, an etching solutioncan uniformly make contact with the metal plate, so that precision of etching can be further increased; and a method of electrophoresis painting is adopted, thus the paint layer thicknesses of all parts of the metal plate are consistent, and that the problem that the precision is poor due to inconsistent paint layer is avoided.

Description

technical field [0001] The invention specifically relates to a high-precision manufacturing process of a mobile phone metal label. Background technique [0002] In the big family of signs, there is a member called metal signs. Metal signs are used more and more in various fields of modern society, among which electronic products, home appliances, machinery and civilian products are relatively widely used. The products produced by metal signs through different manufacturing processes have different uses. Products include nameplates, badges, badges, medals, key chains, hat badges, hat clips, wallets, medals, commemorative coins, craft signs, cufflinks, photo frames, mobile phone straps, tie clips, belt heads, tags, bottle openers, etc. Craft jewelry and various metal signs, metal nameplates and other various metal sign products of different categories. For the production of metal signs for mobile phones, it is mainly based on raw materials such as copper, iron, aluminum, zi...

AI Technical Summary

Problems solved by technology

For the production of metal signs for mobile phones, it is mainly based on raw materials such as copper, iron, aluminum, zinc alloy, titanium, stainless steel, etc., through stamping, die-casting, etching, printing, baking varnish, plastic drop, electroplating and other processes. , and for the above-mentioned production process, polyvinyl alcohol photosensitive adhesive is generally used to protect the parts that do not need to be etched, but the used polyvinyl alcohol photosensitive adhesive has poor corrosion resistance and is easy to fall off, resulting in the accuracy of the etching process. Insufficient, and most of the etching process uses splash etching, and splash etching will lead to uneven contact between the etching solution and the metal plate, so that the etching degree of each part of the metal plate is different, further reducing the etching accuracy; and for In terms of further processing and painting after etching, most of them are painted by spraying and baking. However, the surface of the etched metal plate is not easy to be flat, and the method of spraying and baking directly cannot make the various parts of the metal plate paint well. Consistent layer thickness, again affecting the accuracy of the metal sign

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