Copper electroplating process

An electroplating process and copper-plating technology, applied in the field of copper-plating electroplating process, can solve the problems of low production efficiency, high cost, environmental pollution, etc., and achieve the effects of improving efficiency, enhancing corrosion resistance and reducing environmental pollution

Inactive Publication Date: 2015-12-02
太仓市金鹿电镀有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a pretreatment process not only has low production efficiency and high cost, but also causes environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of copper plating electroplating process, comprises the steps:

[0027] (1) Degreasing and derusting: Put the workpiece to be electroplated into the drum, which is equipped with 1 / 2 volume of degreasing and derusting water bath. The degreasing and derusting water bath contains: Accelerator NS2.5g / L, diffusing agent DN1.5g / L, penetrating agent JFC2g / L, sawdust 4g / L, sodium polyacrylate 500001.2g / L, sodium carbonate 20g / L, sodium silicate 10g / L, sodium lauryl sulfate 2g / L, sodium chloride 4g / L, rosin powder 2.5g / L, soak at room temperature for 25min, and then wash at a speed of 60r / min for 30min to achieve the purpose of oil and rust removal;

[0028] (2) Ultrasonic cleaning: After degreasing and derusting, the workpiece is ultrasonically treated in an aqueous ethanol solution with an ultrasonic volume fraction of 20% at 40°C for 1-2min, and the ultrasonic frequency is 45Hz; after cleaning, re-inject clean water in the same ultrasonic Wash twice under low condit...

Embodiment 2

[0035] A kind of copper plating electroplating process, comprises the steps:

[0036](1) Degreasing and derusting: Put the workpiece to be electroplated into the drum, which is equipped with 1 / 2 volume of degreasing and derusting water bath. The degreasing and derusting water bath contains: Accelerator NS3g / L , Diffusion agent DN2g / L, penetrant JFC2.5g / L, sawdust 4.5g / L, sodium polyacrylate 500001.4g / L, sodium carbonate 25g / L, sodium silicate 13g / L, sodium lauryl sulfate 2.5g / L, sodium chloride 4.5g / L, rosin powder 3g / L, soak at room temperature for 30min, and then wash at 80r / min for 45min to achieve the purpose of oil and rust removal;

[0037] (2) Ultrasonic cleaning: After degreasing and derusting, the workpiece is subjected to ultrasonic treatment for 1-2 minutes in an ethanol aqueous solution with an ultrasonic volume fraction of 25% at 40°C, and the ultrasonic frequency is 45Hz; after cleaning, re-inject clean water in the same ultrasonic Wash twice under low conditio...

Embodiment 3

[0044] A kind of copper plating electroplating process, comprises the steps:

[0045] (1) Degreasing and derusting: Put the workpiece to be electroplated into the drum, which is equipped with 1 / 2 volume of degreasing and derusting water bath. The degreasing and derusting water bath contains: Accelerator NS3.5g / L, diffusing agent DN2.5g / L, penetrating agent JFC3g / L, sawdust 5g / L, sodium polyacrylate 600001.6g / L, sodium carbonate 30g / L, sodium silicate 15g / L, sodium lauryl sulfate 3g / L, sodium chloride 5g / L, rosin powder 3.5g / L, soak at room temperature for 35min, and then wash at a speed of 100r / min for 60min to achieve the purpose of oil and rust removal;

[0046] (2) Ultrasonic cleaning: After degreasing and rust removal, the workpiece is ultrasonically treated in an ethanol aqueous solution with an ultrasonic volume fraction of 30% at 40°C for 1-2min, and the ultrasonic frequency is 45Hz; after cleaning, re-inject clean water in the same ultrasonic Wash twice under low co...

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Abstract

The invention discloses a copper electroplating process. The copper electroplating process comprises the steps of deoiling and derusting, ultrasonic cleaning, electroplating, hydrogen removal, hydrophobic treatment, alcohol washing, water washing and blow-drying. As the two procedures of deoiling and derusting are integrated, the procedures are simplified, the cost is lowered, the efficiency is improved, and the weakly basic condition causes less environmental pollution; as the ultrasonic cleaning procedure is added, the integral pretreatment efficiency is high, and the environment-friendly and pollution-free purposes are achieved; in the electroplating process, as a cyanide-free alkali system is adopted, environmental pollution is small; hydroxyethyl acrylate, hydroxypropyl distarch phosphate, EDTA, hydroquinone and other additives are added, electroplating is performed under the conditions of appropriate current density and electroplating temperature, finally, a fully-bright, uniform, compact and no-microcrack copper coating with a relatively good binding force can be obtained, and the coating can be 10 [mu]m in thickness, excellent in wearing resistance and free of scales when rubbing for 100 times on W40 sand paper.

Description

technical field [0001] The invention relates to a copper plating electroplating process, which belongs to the technical field of electroplating. Background technique [0002] Electroplating is the process of obtaining a metal deposit on a solid surface by electrochemical means. As an important means of traditional surface engineering, electroplating technology has long been used to provide a corrosion-resistant protective layer and a decorative decorative layer for the surface of the workpiece; or to change the surface properties of the base material to obtain metal or Alloy overlay. Due to the development of aerospace and nuclear material engineering industries and electronic information industries, electroplating methods have been used to prepare different types of new composite materials, including particle-dispersed metal composite materials, short fibers, long fiber winding, whisker-reinforced materials, Layered composite materials and optical composite materials; p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/38C25D5/34C25D5/48
Inventor 支建明
Owner 太仓市金鹿电镀有限公司
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