Novel manganese-based magnetic electroplate liquid and preparation method thereof

A kind of electroplating solution and manganese-based technology, which is applied in the direction of photography technology, equipment, photography auxiliary technology, etc., can solve the problems of long film forming time, difficulty in large-scale production, complicated equipment, etc.

Active Publication Date: 2016-09-21
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly vacuum evaporation method and sputtering deposition method to prepare MnBi alloy film, but these preparati

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The method for preparing a novel manganese-based permanent magnet electroplating solution is as follows:

[0024] Add 30g of boric acid, 30g of sodium hypophosphite, 10g of complexing agent, and 3g of ascorbic acid into deionized water, stir evenly and dissolve to make a mixed solution, adjust the pH to 1.0 with HCl, add acidified bismuth chloride to the mixed solution 2g, 10g of manganese chloride, 5g of ferric chloride, and 0.1g of cerium chloride were stirred and dissolved, then the remaining deionized water was added to a total volume of 1L, and the pH was adjusted to 0.5 to obtain a new manganese-based permanent magnet electroplating solution.

Embodiment 2

[0026] The method for preparing a novel manganese-based permanent magnet electroplating solution is as follows:

[0027] Add 50 g of boric acid, 50 g of sodium hypophosphite, 30 g of complexing agent, and 4 g of ascorbic acid into deionized water, stir and dissolve to make a mixed solution, adjust pH=2.0 with sulfuric acid, add 6 g of acidified bismuth chloride, chlorine 30g of manganese chloride, 15g of ferric chloride, and 0.6g of cerium chloride were stirred and dissolved, then the remaining deionized water was added to a total volume of 1L, and the pH was adjusted to 2.0 to obtain a new manganese-based permanent magnet electroplating solution.

Embodiment 3

[0029] The method for preparing a novel manganese-based permanent magnet electroplating solution is as follows:

[0030] Add 60g of boric acid, 60g of sodium hypophosphite, 40g of complexing agent, and 5g of ascorbic acid into deionized water, stir and dissolve to make a mixed solution, adjust the pH=1.5 with HCl, add 8g of acidified bismuth chloride, chlorine 40g of manganese chloride, 20g of ferric sulfate, and 0.8g of cerium chloride were stirred and dissolved, and then the remaining deionized water was added to a total volume of 1L, and the pH was adjusted to 2.5 to obtain a new manganese-based permanent magnet electroplating solution.

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PUM

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Abstract

The invention relates to the technical field of electroplating, in particular to novel manganese-based permanent magnet electroplate liquid and a preparation method thereof. The electroplate liquid comprises, by mass concentration, 30-60 g/L of boric acid, 30-60 g/L of sodium hypophosphite, 10-40 g/L of complexing agents, 3-5 g/L of ascorbic acid, 5-20 g/L of ferric salt, 10-40 g/L of manganese chloride, 2-8 g/L of bismuth chloride, 0.1-0.8 g/L of cerium chloride and the balance deionized water. The electroplate liquid is good in stability, and an alloy coating obtained by using the electroplate liquid is attractive in color and luster and good in magnetic performance.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to a novel manganese-based magnetic electroplating solution and a preparation method thereof. Background technique [0002] Electroplating has the advantages of low cost, simple process, and easy operation. It is widely used in our life and is closely related to all aspects of life. Electroplating is one of the most effective methods in surface treatment technology. In the past, it was mainly electroplating single metal, which is far from meeting the modern requirements for surface performance. Therefore, with the rapid development of electroplating alloys in the past 20 years, it can not only obtain a surface with special properties, but also has a wide variety and a wider range of applications. At present, it has been applied to magnetic materials and other industries. The MnBi alloy with magnetic properties has been widely concerned since it was discovered in 1943, and va...

Claims

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Application Information

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IPC IPC(8): C25C1/24C25D3/56
CPCC25C1/24C25D3/56
Inventor 张朋越郑小美吴琼
Owner CHINA JILIANG UNIV
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