Method for refining electrodeposited nickel crystal grains through cerium trichloride

A cerium trichloride and electrodeposited nickel technology, which is applied in the field of electrodeposited nickel, can solve the problems of refining electrodeposited nickel crystal grains without cerium trichloride, and achieves remarkable effect of refining crystal grains, low cost and easy operation. Effect

Pending Publication Date: 2021-06-29
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no method for refining ele

Method used

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  • Method for refining electrodeposited nickel crystal grains through cerium trichloride
  • Method for refining electrodeposited nickel crystal grains through cerium trichloride
  • Method for refining electrodeposited nickel crystal grains through cerium trichloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method utilizing cerium trichloride to refine electrodeposited nickel grains, the steps are as follows:

[0039] S1. Preparation of deposition solution: adding cerium trichloride to the electrolyte, stirring and dissolving to obtain a deposition solution;

[0040] S2. Cathode test piece treatment: stripping the polished surface of the cathode test piece, ultrasonic cleaning, rinsing, activating, rinsing, and drying to obtain the treated cathode test piece;

[0041] S3. Electrodeposition: adding the deposition solution to the electrodeposition tank, heating, putting in the cathode test piece and the anode test piece, connecting the power supply, electrifying and performing electrodeposition, and obtaining the cathode test piece after electrodeposition;

[0042] S4. Post-treatment of the cathode test piece: rinse, dry and seal the electrodeposited cathode test piece to obtain a nickel-plated cathode test piece.

[0043] In step S1, the electrolyte solution includes the...

Embodiment 2

[0053] A method utilizing cerium trichloride to refine electrodeposited nickel grains, the steps are as follows:

[0054] S1. Preparation of deposition solution: adding cerium trichloride to the electrolyte, stirring and dissolving to obtain a deposition solution;

[0055] S2. Cathode test piece treatment: stripping the polished surface of the cathode test piece, ultrasonic cleaning, rinsing, activating, rinsing, and drying to obtain the treated cathode test piece;

[0056] S3. Electrodeposition: adding the deposition solution to the electrodeposition tank, heating, putting in the cathode test piece and the anode test piece, connecting the power supply, electrifying and performing electrodeposition, and obtaining the cathode test piece after electrodeposition;

[0057] S4. Post-treatment of the cathode test piece: rinse, dry and seal the electrodeposited cathode test piece to obtain a nickel-plated cathode test piece.

[0058] In step S1, the electrolyte solution includes the...

Embodiment 3

[0068] A method utilizing cerium trichloride to refine electrodeposited nickel grains, the steps are as follows:

[0069] S1. Preparation of deposition solution: adding cerium trichloride to the electrolyte, stirring and dissolving to obtain a deposition solution;

[0070] S2. Cathode test piece treatment: stripping the polished surface of the cathode test piece, ultrasonic cleaning, rinsing, activating, rinsing, and drying to obtain the treated cathode test piece;

[0071] S3. Electrodeposition: adding the deposition solution to the electrodeposition tank, heating, putting in the cathode test piece and the anode test piece, connecting the power supply, energizing for electrodeposition, and obtaining the cathode test piece after electrodeposition;

[0072] S4. Post-treatment of the cathode test piece: rinse, dry and seal the electrodeposited cathode test piece to obtain a nickel-plated cathode test piece.

[0073] In step S1, the electrolyte solution includes the following co...

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Abstract

The invention discloses a method for refining electrodeposited nickel crystal grains through cerium trichloride, and relates to the technical field of electrodeposited nickel. The method comprises the following steps that S1, a deposition solution is prepared, wherein the cerium trichloride is added into an electrolyte and stirred and dissolved to prepare the deposition solution; S2, a cathode test piece is treated, wherein the polished surface of the cathode test piece is stripped off, ultrasonic washing, flushing, activating, flushing and blow-drying are conducted, and the treated cathode test piece is prepared; S3, electrodeposition is conducted, wherein the deposition solution is added into an electrodeposition tank, heating is conducted, the cathode test piece and an anode test piece are put in, a power supply is connected, electrifying is conducted for electrodeposition, and the cathode test piece after electrodeposition is prepared; and S4, post-treatment of the cathode test piece is conducted, wherein washing, blow-drying and sealing are conducted on the cathode test piece subjected to electrodeposition, and a nickel-plated cathode test piece is prepared. According to the method for refining the electrodeposited nickel grains through the cerium trichloride, the rare earth element Ce is added into the electrolyte, the grain refining effect is remarkable, and the minimum average grain size can reach 349.34 nm.

Description

technical field [0001] The invention relates to the technical field of electrodeposited nickel, in particular to a method for refining electrodeposited nickel grains by using cerium trichloride. Background technique [0002] As an important strategic material, electrolytic nickel is widely used in the fields of machinery, atomic reactors, electronics, petrochemicals, military weapons, etc. The traditional method of refining nickel deposits is to add metal oxides and non-metallic refiners to the coating or solution. The way of crystal grains adopts complex equipment, difficult operation and high cost, and the crystal grains of the electrodeposited nickel are relatively large. [0003] Rare earth metal ions have a large radius, and are easy to fill in the growth defects of new phases of non-ferrous metals and their alloy grains. They can form a cathodic protection film that hinders the continued growth of grains, and have the effect of refining grains. By adding Rare earth io...

Claims

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Application Information

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IPC IPC(8): C25D3/12
CPCC25D3/12
Inventor 徐仰涛裴亮王雅宁
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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