Method for electroplating aluminium alloy products

Abstract

This invention discloses a aluminum alloy product plating method, which mainly includes smearing step and plating step, first smearing then electroplating. This invention uses mechanical processing mirror imitating mode to reach the exterior order without polishing working procedure; and it only do electroplating with some parts of the product; the plating layer avoids multi-times baking, which lowers reject rate greatly; and because it uses special oil paint and powder as the protect layer when electroplating, so the oil paint won't fade, and smearing doesn't need gummed paper, which lower the material cost; the product electroplating eligibility rate improves by 10%.

Description

【Technical field】 [0001] The invention relates to an electroplating method, in particular to an electroplating method for aluminum alloy products. 【Background technique】 [0002] With the rapid development of my country's national economy, new technologies and new processes for finishing and electroplating are constantly emerging, and various electroplating such as decorative electroplating, simulation electroplating, and composite electroplating have been widely used. [0003] With its many advantages, aluminum has been paid more and more attention by people. The application of coloring makes aluminum more valuable, such as gold, plates, profiles, aluminum foil, etc. After coloring, it can increase value, expand application fields, environmental protection, reuse, and lightness. and other advantages are widely concerned and valued. With the rapid development of my country's automobile industry, the electroplating technology of automobile aluminum wheels has also been devel...

AI Technical Summary

Problems solved by technology

[0006] 2. Electroplating is used first, and the entire product surface is electroplated. The cost of electroplating plus polishing costs about 280 yuan, and the cost of raw materials and processing costs are relatively high;

[0007] 3. It needs to be baked many times during painting, which will cause foaming of the coating in the low area, and the scrap rate is high;

[0009] 5. Since the entire product surface needs to be electroplated, there is a low area phenomenon, and the qualified rate of electroplating is low;

[0010] 6. The cost of deplating and repairing is high, and the entire product needs to be returned and re-plated;

[0011] 7. The pre-nickel plating step takes 30-45 minutes, the acid copper step takes 90-120 minutes, and the semi-bright nickel and bright nickel also take 60-90 minutes. The total time of the entire electroplating process is longer

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