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Imitation gold electroplating method

A technology of imitation gold and electroplating treatment, which is applied in the plating of superimposed layers, metal material coating process, coating, etc. holes and other problems, to achieve the effect of long service life, low electroplating cost and bright color

Inactive Publication Date: 2015-03-25
HENGYANG FENGSHUN AXLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has disadvantages such as a small range of process parameters, the appearance color of the imitation gold coating is not bright, and there are pits and pinholes on the surface of the coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A gold-imitation electroplating method, the operation steps of which are as follows: using a 10cm×5cm×1cm steel plate as a processing substrate for a part, and hanging the part on a hook above an electroplating tank;

[0011] Degreasing and derusting treatment: use gauze to polish the substrate for derusting; use ultrasonic degreasing and electrochemical method to degrease, that is, put the processed substrate after washing with water into 10g / L NaOH solution for ultrasonic cleaning for 10min, and then ultrasonically clean it with distilled water Wash for 5 minutes, 1.5% HCl ultrasonic pickling for 5 minutes;

[0012] Hot water washing: Ultrasonic washing with distilled water at 60~80°C for 2 times, each time for 3 minutes;

[0013] Corrosion treatment: use 5mol / L H 2 SO 4 Immersion 2h;

[0014] Washing in cold water: Ultrasonic washing with distilled water at 5~10°C for 5 minutes;

[0015] Bright nickel plating: put the processed substrate into a mixture of 30g / L n...

Embodiment 2

[0024] A gold-imitation electroplating method, the operation steps of which are: using a steel plate of 8cm×3cm×0.5cm as the processing substrate of the part, and hanging the part on the hook above the electroplating tank;

[0025] Degreasing and derusting treatment: use gauze to polish the substrate for derusting; use ultrasonic degreasing and electrochemical method to degrease, that is, put the processed substrate after cleaning with water into 8g / L NaOH solution for 10min ultrasonic cleaning, and then use distilled water for ultrasonic cleaning Wash for 5 minutes, 1.0% HCl ultrasonic pickling for 5 minutes;

[0026] Hot water washing: ultrasonic washing with distilled water at 80°C for 2 times, each time for 3 minutes;

[0027] Corrosion treatment: use 5mol / L H 2 SO 4 Immersion 2h;

[0028] Washing in cold water: Ultrasonic washing with distilled water at 8°C for 5 minutes;

[0029] Bright nickel plating: put the processed substrate into a mixture of 30g / L nickel sulfat...

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PUM

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Abstract

The invention discloses an imitation gold electroplating method. The imitation gold electroplating method is characterized by comprising the operation steps of part installing and suspending, oil removing and rust removing treatment, hot water washing, corrosion treatment, cold water washing, bright nickel plating, cold water washing, imitation gold plating treatment for 50-80 seconds, cold water washing, passivation treatment, cold water washing, drying, varnishing, spin-drying, baking, workpiece mounting and dismounting, and inspecting and packaging. Ultrasonic degreasing and the electrochemical method are combined to remove oil for the oil removing treatment; an ultrasonic wave cleaning mode is adopted for the hot water washing and cold water washing; the imitation gold plating is performed at the temperature of 20-25 DEG C and with the pH of 8.0-9.0 and the current density of 5-10A / dm<3>. The imitation gold electroplating method is simple and convenient to operate, and a plating layer is high in bonding force; a treated workpiece is bright in color, and has long service life; the plating cost is low.

Description

technical field [0001] The invention relates to an electroplating method, in particular to an imitation gold electroplating method. Background technique [0002] CN 103806064 A discloses a gold imitation electroplating process on the surface of an aluminum alloy. The operation steps are: degreasing→cleaning→lighting→cleaning→pre-nickel plating→cleaning→acid bright copper plating→cleaning→bright nickel plating→cleaning→activation treatment →cleaning→imitation gold plating→passivation→cleaning→coating (dipping paint)→drying→testing. The aluminum alloy surface imitation gold electroplating process of the invention is complicated to operate. [0003] CN 103866356 A discloses a method for electroplating a Cu-Zn binary alloy without cyanide imitation gold, and electroplating is directly performed after substrate activation treatment without cleaning. However, the method has a small range of process parameters, the appearance color of the imitation gold coating is not bright, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/58C25D5/12C25D5/48C25D5/36C23C28/00
CPCC25D3/58C25D5/12C25D5/36C25D5/48
Inventor 刘登发尤华胜
Owner HENGYANG FENGSHUN AXLE CO LTD
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