Copper-manganese alloy electroplating technique

An electroplating process and a copper-manganese alloy technology, applied in the field of electroplating, can solve the problems of high cost, low production efficiency, environmental pollution, etc., and achieve the effects of improving resistance to neutral salt spray, improving efficiency, and reducing environmental pollution

Inactive Publication Date: 2015-11-18
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 copper-manganese alloy electroplating process, comprising 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 condi...

Embodiment 2

[0035] A copper-manganese alloy electroplating process, comprising 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 conditi...

Embodiment 3

[0044] A copper-manganese alloy electroplating process, comprising 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 c...

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Abstract

The invention discloses a copper-manganese alloy electroplating technique which comprises the following steps: deoiling and derusting, ultrasonic cleaning, electroplating, dehydrogenation, water repelling treatment, alcohol washing, water washing and blow-drying. The technique integrates the deoiling and derusting steps, thereby saving the procedure, lowering the cost and enhancing the efficiency; and the weakly alkaline conditions can produce less pollution to the environment. The ultrasonic cleaning step is added, so that the overall pretreatment is efficient, environment-friendly and pollution-free. In the electroplating process, an acidic system is adopted, and thus, can produce less pollution to the environment. By adding ascorbic acid, hydroquinone and other additives, the electroplating is performed under the conditions of proper current density and electroplating temperature, so the copper/manganese codeposition effect is good, and the finally obtained copper-manganese alloy electroplating coating has the advantages of uniform color, fine crystals, high film thickness (up to 10 mu m) and favorable wear resistance. After being rubbed 100 times by W40 sand paper in a single direction, the coating can not peel. The alloy coating has favorable electric conductivity, and can effectively prevent chromium in the stainless steel from outward transfer and dispersion.

Description

technical field [0001] The invention relates to a copper-manganese alloy 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 methods. 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 ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/58C25D5/34
Inventor 支建明
Owner 太仓市金鹿电镀有限公司
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