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Chemical nickel plating solution of aluminium based chassis

An electroless nickel plating, aluminum base machine technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problems of electromagnetic interference resistance performance decline, chassis conductivity loss, etc., to improve the coating adhesion and protection, good reproducibility, good electromagnetic shielding and electrical conductivity

Inactive Publication Date: 2005-04-20
NO 771 INST NO 9 INST CHINESE AERIAL SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the traditional aluminum-based chassis processing methods use aluminum anodic oxidation, so that the conductivity of the chassis itself is completely lost, and the resistance to electromagnetic interference is reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Prepare 10 liters of plating solution: take 1 liter each of A and B, add 8 liters of pure water after mixing, and adjust the pH value to 4 with ammonia water. When using nickel plating solution, the temperature is controlled at 65 °C.

Embodiment 2

[0052] Prepare 1 liter of plating solution: take 0.1 liters of each of A and B, add 0.8 liters of pure water after mixing, and adjust the pH value to 8 with ammonia water. When using nickel plating solution, the temperature is controlled at 70°C.

Embodiment 3

[0054] Prepare 5000 liters of plating solution: take 500 liters of each of A and B, add 4000 liters of pure water after mixing, and adjust the pH value to 10 with ammonia water. When using nickel plating solution, the temperature is controlled at 85 °C.

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PUM

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Abstract

The electroless nickel plating solution for aluminum-based chassis of the present invention is characterized in that the weight of substances contained in each liter of nickel plating solution is: nickel sulfate 20-50g, sodium hypophosphite 20-60g, citric acid 10-50g, 10-50g of succinic acid, 10-50g of triethanolamine, 10-30g of sodium acetate, the pH value of the nickel plating solution is 3-13, when using the nickel plating solution, the temperature is controlled at 60-90°C, the aluminum treated with this nickel plating solution The base case has good electrical conductivity and anti-electromagnetic interference, which improves the hardness, wear resistance and corrosion resistance of the case, and greatly improves the processing efficiency of the aluminum-based case.

Description

technical field [0001] The invention relates to an aluminum-based chassis electroless nickel plating solution. Background technique [0002] Most of the traditional aluminum-based chassis processing methods use the aluminum anodic oxidation method, so that the conductivity of the chassis itself is completely lost, and the resistance to electromagnetic interference is reduced. Contents of the invention [0003] The purpose of the invention is to provide a reproducible and stable electroless nickel plating solution. [0004] The technical scheme that realizes the object of the present invention is that the weight of substance contained in every liter of nickel plating solution is: [0005] Nickel sulfate 20-50g [0006] Sodium hypophosphite 20-60g [0007] Citric acid 10-50g [0008] Succinic acid 10-50g [0009] Triethanolamine 10-50g [0010] Sodium acetate 10-30g. [0011] The pH of the nickel plating solution is 3-13, and when using the nickel plating solution, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/36
Inventor 杨胜利蒙铁桥
Owner NO 771 INST NO 9 INST CHINESE AERIAL SCI & TECH GRP