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Surface treatment process for electroplating iron-nickel alloy and electroplating solution thereof

An iron-nickel alloy and surface treatment technology, which is applied in the field of surface treatment, can solve problems such as the inability to improve the stability of the coating performance, and achieve the effects of significant nickel saving, good coating compactness, and high iron content

Active Publication Date: 2010-12-15
湖南纳菲尔新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a low-cost, high-performance nickel-substituting process, that is, the electroplating iron-nickel alloy surface treatment process and the electroplating solution used, which can greatly save the use of nickel, increase the content of iron, and overcome the problems of electroplating in the past. The content of iron in the process technology is low, which cannot improve and stabilize the performance of the coating.

Method used

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  • Surface treatment process for electroplating iron-nickel alloy and electroplating solution thereof
  • Surface treatment process for electroplating iron-nickel alloy and electroplating solution thereof
  • Surface treatment process for electroplating iron-nickel alloy and electroplating solution thereof

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Effect test

Embodiment 1

[0051] Lock plating, brass base

[0052] Process route: degreasing-cleaning-pickling-cleaning-electroplating the iron-nickel alloy coating of the present invention-cleaning-cleaning-chrome plating.

[0053] In the above route, degreasing is alkaline chemical degreasing; pickling is dilute sulfuric acid, and the corresponding process conditions can be processed according to the existing process.

[0054] When the iron-nickel alloy coating of the present invention is electroplated, the electroplating solution is prepared by an aqueous solution, and the components include 100 grams / liter of ferrous sulfate, 120 grams / liter of nickel sulfate, 30 grams / liter of boric acid, 0.5 grams / liter of saccharin, benzoate Sodium sulfonate 0.1 g / L, the workpiece is used as the cathode during the electroplating process, and a high-frequency switching power supply is used at 5-10A / dm 2 Iron-nickel coating is obtained by electroplating at a current density of 100%, using Ti-iridium and tantalum ...

Embodiment 2

[0057] Metal tool electroplating, 45 steel substrate

[0058]Process route: degreasing-cleaning-pickling-cleaning-electroplating the iron-nickel alloy coating of the present invention-cleaning-chrome plating.

[0059] The degreasing in the above process adopts alkaline point chemical degreasing; the pickling is dilute sulfuric acid cleaning, and the corresponding process conditions can be processed according to the existing process.

[0060] The electroplating solution is prepared with an aqueous solution, and its components include 150 g / L of ferrous sulfate, 200 g / L of nickel sulfate, 60 g / L of boric acid, 3 g / L of saccharin, and 0.4 g / L of sodium benzenesulfinate. The medium workpiece is used as the cathode, using high-frequency switching power supply, with 5-10A / dm 2 Iron-nickel coating is obtained by electroplating at a current density of 100%, using Ti-iridium and tantalum oxide inert anodes.

[0061] image 3 It is a photo of the vise processed by the above process. ...

Embodiment 3

[0062] Embodiment 3: self-rescuer, No. 20 steel substrate

[0063] Process route: degreasing-cleaning-pickling-cleaning-electroplating the iron-nickel alloy coating of the present invention-cleaning-tungsten alloy plating.

[0064] The degreasing in the above process adopts alkaline point chemical degreasing; the pickling is dilute sulfuric acid cleaning, and the corresponding process conditions can be processed according to the existing process.

[0065] The electroplating solution is prepared with an aqueous solution, and its components include 120 g / L of ferrous sulfate, 150 g / L of nickel sulfate, 40 g / L of boric acid, 2 g / L of saccharin, and 0.3 g / L of sodium benzenesulfinate. The medium workpiece is used as the cathode, using high-frequency switching power supply, with 5-10A / dm 2 Iron-nickel coating is obtained by electroplating at a current density of 100%, using Ti-iridium and tantalum oxide inert anodes.

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Abstract

The invention discloses a superficial treatment process of an electroplating iron-nickel alloy and the electroplating solution thereof. The electroplating solution is prepared by aqueous solution and the elements include: ferrous sulfate, 100 to 150 grams per liter; nickel sulfate, 120 to 200 grams per liter; boric acid, 30 to 60 grams per liter; saccharin, 0.5 to 3 grams per liter; and sodium benzene sulfinate, 0.1 to 0.4 grams per liter. A work piece is taken as a cathode in the electroplating process. The anode is a Ti-oxide inert anode. A high-frequency switch power supply is adopted. An iron-nickel film coating can be got by electroplating with the current density of 5-10A / dm<2>. After treatment by the invention, the work piece surface is plated with an iron-nickel alloy coating which contains 40 percent to 60 percent of iron. The coating structure is a structure which is amorphous but includes nano-crystalline. The surface of the coating structure is flat and uniform and has fine crystallization. The alloy plating is characterized by good anti-corrosion performance, good ductility and high hardness, etc. Compared with the nickel plating technique, the coating got by the invention is more superior in cost performance, has the same service performance and at the same time greatly reduces the production cost and has very good economical benefits.

Description

technical field [0001] The invention belongs to the technical field of surface treatment, and relates to a novel electroplating iron-nickel alloy surface treatment technology to replace the nickel plating process technology and the used electroplating solution. Background technique [0002] The nickel plating process is widely used in various aspects of the electroplating industry, and is used for surface treatment of metal devices for anti-corrosion and decoration purposes. [0003] However, since nickel resources are non-renewable resources, with the continuous increase of nickel consumption, the supply has been seriously insufficient, causing the price to soar. The cost of nickel plating in various electroplating enterprises remains high. Electroplating enterprises are seeking new technologies for saving nickel and replacing nickel. From the nature of the coating, the iron-nickel alloy should be the preferred coating. [0004] In the 1960s and 1970s, my country's elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/56
Inventor 何凤娇
Owner 湖南纳菲尔新材料科技股份有限公司
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