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Semi-bright nickel electroplating solution additive, semi-bright nickel electroplating solution and semi-bright nickel electroplating method

A semi-bright nickel and additive technology, applied in the field of electroplating, can solve the problems of poor corrosion resistance and semi-bright nickel plating potential difference, and achieve the effect of stable potential difference, wide application range and good application prospect.

Active Publication Date: 2015-05-13
HANGZHOU WIN WIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a semi-bright nickel additive with high potential difference and good corrosion resistance, semi-bright nickel plating solution and Plating method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Plating solution formula:

[0030] Nickel sulfate 220 g / L, nickel chloride 50 g / L, boric acid 50 g / L, 2,5-dimethylhexynediol: 10 mg / L, benzenesulfonamide 0.5 g / L, sulfosalicylic acid 20mg / L, chloral hydrate 10mg / L, sodium 2-ethylhexyl sulfate 50mg / L, sodium dihexyl succinate sulfonate 20 mg / L. Adjust the pH to 4.2, and the electroplating temperature to 55°C.

[0031] Plating method:

[0032] Degreasing→water washing→activation→water washing→electroplating semi-gloss nickel→water washing→electroplating bright nickel→water washing→drying→obtain electroplating product A1.

[0033] The conditions for each step are as follows:

[0034] Degreasing: Add 100 g / L degreasing solution (conventional degreasing agent) to the ultrasonic cleaning machine, immerse the workpiece in the degreasing solution and vibrate ultrasonically at 50°C for 5 minutes.

[0035] Activation: Soak the workpiece in pickling solution (300 ml / L hydrochloric acid) at 20°C for 1 minute.

[0036] Electrop...

Embodiment 2

[0039] Electroplating was carried out according to the method of Example 1 to obtain electroplating product A2. The difference is that the additive formula is:

[0040] 2,5-dimethylhexynediol 30mg / L, benzenesulfonamide 1g / L, sulfosalicylic acid 200mg / L, chloral hydrate 20mg / L, 2-ethylhexyl sodium sulfate 200mg / L L, sodium dihexyl sulfonate 80 mg / L.

Embodiment 3

[0042] Electroplating was carried out according to the method of Example 1 to obtain electroplating product A3. The difference is that the additive formula is:

[0043] 2,5-dimethylhexynediol 20mg / L, benzenesulfonamide 0.7g / L, sulfosalicylic acid 100mg / L, chloral hydrate 50mg / L, 2-ethylhexyl sodium sulfate 100mg / L, sodium dihexyl sulfonate 50 mg / L.

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PUM

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Abstract

The invention provides a semi-bright nickel electroplating solution additive which comprises a brightener, a potential difference stabilizer, and a wetting agent; the potential difference stabilizer is chloral hydrate; the mass ratio of the brightener, the potential difference stabilizer, and the wetting agent is 5.3-123:1:0.7-35. The invention also provides a semi-bright nickel electroplating solution and a semi-bright nickel electroplating method. The semi-bright nickel electroplating solution additive of the invention provides stable potential difference environment for the electroplating solution, and is suitable for electroplating with high electroplating layer potential difference requirement and high workpiece corrosion resistance requirement.

Description

technical field [0001] The invention belongs to the field of electroplating, and mainly relates to an additive for a semi-bright nickel electroplating solution, a semi-bright nickel electroplating solution and a semi-bright nickel electroplating method. Background technique [0002] The semi-bright nickel coating is an essential base layer for bright nickel plating, and the performance of the semi-bright nickel plating solution directly affects the performance of the obtained coating. The plating layer obtained by electroplating with the existing semi-bright nickel plating solution has small potential difference and poor corrosion resistance. [0003] Such as Chinese patent CN1528951A discloses a kind of nickel plating solution and its process of semi-bright nickel plating: nickel sulfate 240-280g / L, nickel chloride 45-60g / L, boric acid 30-40 g / L, 1,4- Butynediol 0.2-0.3 g / L, [0004] Glacial acetic acid 1.0-1.5g / L, sodium lauryl sulfate 0.01-0.02 g / L; pH value 4.0-5.0, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/16
Inventor 唐发德
Owner HANGZHOU WIN WIN TECH CO LTD
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