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Nickel phosphorus silicon nitride composite plating solution

A technology of phosphorus silicon nitride and composite coating, which is applied in the field of nickel phosphorus silicon nitride composite coating plating solution, can solve the problems that the process technology cannot meet the requirements, etc., and achieve the effects of good wear resistance, stable chemical properties and strong shock resistance

Inactive Publication Date: 2017-05-17
TIANJIN RUISAIKE NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous expansion of the application field of electroless nickel-phosphorus alloy coating, the requirements for its hardness and wear resistance are getting higher and higher, and the existing technology can no longer meet the requirements.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A nickel-phosphorus-silicon-nitride composite coating plating solution is made of raw materials with the following concentrations:

[0012] NiSO 4 ·6H 2 O 80g / L, sodium citrate 30g / L, sodium hypophosphite 20g / L, anhydrous sodium acetate 40g / L, lead acetate 0.5mg / L, saccharin 0.5g / L, butynediol 0.5g / L, Si 3 N 4 1g / L, pH 3, temperature 86°C.

Embodiment 2

[0014] A nickel-phosphorus-silicon-nitride composite coating plating solution is made of raw materials with the following concentrations:

[0015] NiSO 4 ·6H 2 O 150g / L, sodium citrate 90g / L, sodium hypophosphite 60g / L, anhydrous sodium acetate 80g / L, lead acetate 2mg / L, saccharin 2g / L, butynediol 2g / L, Si 3 N 4 15g / L, pH 5, temperature 96°C.

Embodiment 3

[0017] A nickel-phosphorus-silicon-nitride composite coating plating solution is made of raw materials with the following concentrations:

[0018] NiSO 4 ·6H 2 O 120g / L, sodium citrate 65g / L, sodium hypophosphite 40g / L, anhydrous sodium acetate 60g / L, lead acetate 1mg / L, saccharin 1g / L, butynediol 1g / L, Si 3 N 4 8g / L, pH 4, temperature 91°C.

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PUM

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Abstract

The invention provides a nickel phosphorus silicon nitride composite plating solution. The nickel phosphorus silicon nitride composite plating solution is prepared from the raw materials at the following concentrations of 80-150 g / L of NiSO4.6H2O, 30-90 g / L of sodium citrate, 20-60 g / L of sodium hypophosphite, 40-80 g / L of anhydrous sodium acetate, 0.5-2 mg / L of lead acetate, 0.5-2 g / L of saccharin, 0.5-2 mg / L of butynediol and 1-15 g / L of Si3N4. The potential of hydrogen is 3-5, and the temperature is 86-96 DEG C. According to the provided nickel phosphorus silicon nitride composite plating process, good corrosion resistance is maintained, and meanwhile the hardness and abrasive resistance of plating are improved. The plating has the advantages of being high in hardness, good in abrasive resistance, strong in shock resistance, stable in chemical property and the like, further has a certain self-lubricity, and can be widely used for surface finishing of movable parts easy to wear in a corrosion environment.

Description

technical field [0001] The invention relates to a nickel-phosphorus-silicon-nitride composite coating solution. Background technique [0002] Electroless nickel-phosphorus alloy has the characteristics of good wear resistance, high hardness and excellent corrosion resistance, and is widely used in anti-corrosion, wear-resistant, decoration, electromagnetic shielding and other fields. With the continuous expansion of the application field of electroless nickel-phosphorus alloy coating, the requirements for its hardness and wear resistance are getting higher and higher, and the existing technology can no longer meet the requirements. Contents of the invention [0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a nickel phosphorus silicon nitride composite coating process, which improves the hardness and wear resistance of the coating while maintaining good corrosion resistance. This coating has It ...

Claims

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Application Information

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IPC IPC(8): C23C18/36
Inventor 宋振兴谢玉娟
Owner TIANJIN RUISAIKE NEW MATERIAL TECH CO LTD