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Formula of chemical nickel-plated brightener

A technology of electroless nickel plating and brightener, applied in the direction of liquid chemical plating, metal material coating technology, coating, etc., can solve the problems of unsuitable decoration, low brightness, poor leveling, etc., and achieve fast light output speed, Less dosage and excellent corrosion resistance

Inactive Publication Date: 2011-12-21
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional electroless nickel plating layer is generally yellowish steel gray. Although it has the advantages of high hardness and good corrosion resistance, it has low brightness and poor leveling, and is not suitable for decoration.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] 1. Formula: nickel sulfate 22g / L, sodium hypophosphite 25g / L, sodium acetate 12g / L, malic acid 6g / L, acetic acid 8ml / L, lactic acid 10ml / L, bismuth sulfate 4 mg / L, celandine Amino acid 1 mg / L, o-phenanthroline 2 mg / L, sodium dodecylsulfonate 1 mg / L, copper sulfate 1 mg / L, pH 4.5, loading 0.72, plating temperature 80°C, The plating time was 10 minutes.

[0009] 2. Preparation of plating solution

[0010] (1) Weigh out the calculated amount of various drugs according to the volume of the plating solution;

[0011] (2) Ionized water or distilled water completely dissolves solid medicines and dilutes viscous liquid medicines into dilute solutions.

[0012] Nickel Italian sulfate is mixed and dissolved with sodium acetate, malic acid, acetic acid, and lactic acid first, and then mixed with sodium hypophosphite; and the amount of operating water is controlled at about 3 / 4 of the volume of the configured solution and cannot exceed the specified volume.

[0013] (3) Adjust t...

Embodiment 2

[0020] 1. Formula: nickel sulfate 25g / L, sodium hypophosphite 28g / L, sodium acetate 15g / L, malic acid 8 g / L, acetic acid 8 ml / L, lactic acid 8ml / L, bismuth sulfate 5mg / L, Leucine 2mg / L, o-phenanthroline 2mg / L, sodium dodecylsulfonate 3 mg / L, copper sulfate 2 mg / L, pH value 4.8, loading amount 0.72, plating temperature 80 ℃, Plating time was 10 minutes.

[0021] 2. Preparation of plating solution

[0022] (1) Weigh out the calculated amounts of various medicines according to the volume of the plating solution;

[0023] (2) Ionized water or distilled water completely dissolves solid medicines and dilutes viscous liquid medicines into dilute solutions.

[0024] Nickel Italian sulfate is mixed and dissolved with sodium acetate, malic acid, acetic acid and lactic acid first, and then mixed and dissolved with sodium hypophosphite; and the amount of operating water is controlled at about 3 / 4 of the volume of the configured solution and cannot exceed the specified volume.

[0025] ...

Embodiment 3

[0032] 1. Formula of basic plating solution: nickel sulfate 30g / L, sodium hypophosphite 30g / L, sodium acetate 15g / L, malic acid 8g / L, acetic acid 12ml / L, lactic acid 15 ml / L, bismuth sulfate 6mg / L, Chelidonine 2mg / L, o-phenanthroline 2ml / L, sodium dodecylsulfonate 5 mg / L, copper sulfate 4 mg / L, pH 5.0, loading 1.0, plating temperature 80°C , The plating time is 10 minutes.

[0033] 2. Preparation of plating solution

[0034] (1) Weigh out the calculated amounts of various medicines according to the volume of the plating solution;

[0035] (2) Ionized water or distilled water completely dissolves solid medicines and dilutes viscous liquid medicines into dilute solutions.

[0036] Nickel Italian sulfate is mixed and dissolved with sodium acetate, malic acid, acetic acid and lactic acid first, and then mixed and dissolved with sodium hypophosphite; and the amount of operating water is controlled at about 3 / 4 of the volume of the configured solution and cannot exceed the specifi...

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PUM

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Abstract

The invention discloses a formula of a chemical nickel-plated brightener, comprising: 20 to 30g / L of nickel sulfate, 23 to 32g / L of sodium hypophosphite, 10 to 20g / L of sodium acetate, 4 to 10g / L of malic acid, 6 to 13ml / L of acetic acid, 6 to 15ml of lactic acid, 3 to 10mg / L of bismuth sulfate, 1 to 4mg / L of chelidonamic acid, 1 to 4mg / L of o-phenanthroline, 1 to 6mg / L of sodium dodecyl sulfate and 0.5 to 2.5mg / L of copper sulfate, wherein the PH value of the formula is 4.5 to 5.0. The formula of the chemical nickel-plated brightener has the advantages that: when the brightener is used, a plating can achieve the effect of full brightness, light-emitting speed is high, light generally emits after about 5 minutes and a mirror face effect can be achieved after 10 minutes; and the used amount of the brightener is small, plating liquid is stable, the bonding force of the plating is large, the corrosion resistance of the plating is high, and the test of a citric acid pitting corrosion method can last over 200 seconds.

Description

technical field [0001] The invention relates to an electroless plating formulation, in particular to an electroless nickel plating brightener formulation. Background technique [0002] Since the industrialization of the electroless Ni-P alloy plating process in the 1950s, due to its good corrosion resistance, wear resistance, and uniform thickness, it has become the focus of research and development in the field of surface chemistry and material coating. At present, the electroless nickel-phosphorus alloy coating has good corrosion resistance and wear resistance, uniform coating thickness, high hardness, and good profiling, so it is widely used in petroleum, textile, electronics, computer, aerospace and other fields. [0003] With the development of the times, in many fields, electroless nickel plating products are not only required to have better functionality, but also to have a very high decorative quality. The traditional electroless nickel plating layer is generally y...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/36
Inventor 邹建平曾江保易喻兵庄桂红赖明峰薛玉娣彭强
Owner NANCHANG HANGKONG UNIVERSITY
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