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A method for co-deposition of aluminum sol and metal nickel ions

A technology of metal nickel and aluminum sol, applied in the direction of electrolytic paint, coating, etc., can solve the problems of reducing the plating temperature and low brightness of the coating, and achieve the effect of reducing the plating temperature and saving energy

Active Publication Date: 2016-07-06
沈阳道达汽车饰件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem of low brightness of the coating obtained by using the nickel plating solution alone to plate nickel on the metal surface, adding aluminum sol to the nickel plating solution for electroplating, and can obtain a co-deposited composite film of aluminum sol and metal nickel with high brightness, And reduce the plating temperature, saving energy

Method used

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  • A method for co-deposition of aluminum sol and metal nickel ions
  • A method for co-deposition of aluminum sol and metal nickel ions
  • A method for co-deposition of aluminum sol and metal nickel ions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The first step, pre-treatment: workpiece grinding (sandpaper grinding can be used), non-working surface insulation (insulating tape can be used), chemical degreasing of the working surface, hot water washing (50 ℃ hot water), running tap water washing, pickling, Wash under running tap water. The workpiece is QT450-10 ductile iron workpiece.

[0025] In this experiment, chemical degreasing was used, and the composition of the degreasing liquid was:

[0026]

[0027] The continuous water film on the working surface of the workpiece substrate means that the oil on the working surface has been removed.

[0028] 5% industrial hydrochloric acid is used for pickling, and a commercially available acid mist inhibitor is added to the industrial hydrochloric acid, so that the concentration of the commercially available acid mist inhibitor in the mixture of industrial hydrochloric acid and commercially available acid mist inhibitor is 1mL / L.

[0029] The second step is electro...

Embodiment 2

[0037] A method for co-deposition of aluminum sol and metallic nickel ions, comprising the following steps:

[0038] The first step, pre-treatment: workpiece grinding (sandpaper grinding can be used), non-working surface insulation (insulating paint can be applied), working surface chemical degreasing, hot water washing (70 ℃ hot water), running tap water washing, pickling, flow Wash with running water. The workpiece is a Q235 steel workpiece.

[0039] In this experiment, chemical degreasing was used, and the composition of the degreasing liquid was:

[0040]

[0041] The continuous water film on the working surface of the workpiece base means that the oil on the working surface of the workpiece has been removed.

[0042] 20% industrial hydrochloric acid is used for pickling, and a commercially available acid mist inhibitor is added to the industrial hydrochloric acid, so that the concentration of the commercially available acid mist inhibitor in the mixture of industrial...

Embodiment 3

[0051] The first step, pre-treatment: workpiece grinding (sandpaper grinding can be used), non-working surface insulation (wrapped with insulating tape), chemical degreasing of the working surface, hot water washing (60 ℃ hot water), running tap water washing, pickling, running tap water wash. Described workpiece is 45# steel workpiece.

[0052] In this experiment, chemical degreasing was used, and the composition of the degreasing liquid was:

[0053]

[0054] The continuous water film on the working surface of the workpiece base means that the oil on the working surface of the workpiece has been removed.

[0055]Pickling uses 15% industrial hydrochloric acid, and commercially available acid mist inhibitors are added to industrial hydrochloric acid, so that the concentration of commercially available acid mist inhibitors in the mixture of industrial hydrochloric acid and commercially available acid mist inhibitors is 12mL / L.

[0056] The second step is electroplating-ele...

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Abstract

A codeposition method of alumina sol and metallic nickel irons comprises the following steps: step one, performing pretreatment; step two, performing electroplating-cataphoresis codeposition of the alumina sol and the metallic nickel irons, namely adding the alumina sol into a nick plating solution to prepare a co-deposited nick plating solution of the alumina sol and the metallic nickel irons, placing a workpiece subjected to pretreatment into the co-deposited nick plating solution of the alumina sol and the metallic nickel irons for electroplating-cataphoresis codeposition, and obtaining a co-deposited composite film of the alumina sol and the metallic nickel irons on the surface of the workpiece; step three, washing the workpiece with flowing tap water, and drying the workpiece. According to the method, the alumina sol is added into the nick plating solution for electroplating, so that the co-deposited high-brightness composite film of the alumina sol and the metallic nickel irons is obtained, thereby reducing starting electroplating temperature and saving energy sources.

Description

technical field [0001] The invention belongs to the technical field of electroplating, and relates to a co-deposition method of aluminum sol and metal nickel ions, which is an electroplating nickel and nickel plating additive technology, and is an aluminum sol (also called boehmite sol or aluminum hydroxide sol) in an electroplating nickel solution in the application. Background technique [0002] Electroplating nickel technology is a method of electroplating a layer of metallic nickel on metal by electrodeposition. The passivation ability of metal nickel is very strong, and a very thin passivation film can be formed on its surface quickly, so that it can maintain a long-lasting luster. At room temperature, it can resist the corrosion of air, water and lye, and has good wear resistance. It can be used as the bottom or middle layer of electroplating. Commonly used are Watt nickel, dark nickel, semi-bright nickel, high-sulfur nickel and bright nickel. Therefore, nickel plat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/12C25D15/02
Inventor 周琦曾齐
Owner 沈阳道达汽车饰件有限公司
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