Chemical plating Ni-P alloy technology of glass micro beads

A glass microbead and alloy process technology, applied in the field of glass microbead electroless plating Ni-P alloy process, can solve problems such as poor uniformity of Ni-P deposition layer, and achieve good anti-corrosion performance

Inactive Publication Date: 2011-04-13
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] In order to solve the problems of poor uniformity of the Ni-P deposition layer and low content of Ni and P on the surface of glass beads, the present invention optimizes the temperature of the plating solution and the plating time, adopts the common electroless nickel plating solution formula, and passes through the glass before and after plating. Microbead SEM and EDS analysis and composition test, can get Ni-P alloy electroless plating Ni-P alloy with glass microbeads with uniform Ni-P deposition layer

Method used

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  • Chemical plating Ni-P alloy technology of glass micro beads
  • Chemical plating Ni-P alloy technology of glass micro beads
  • Chemical plating Ni-P alloy technology of glass micro beads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] A kind of glass microbead chemical plating Ni-P alloy process, comprises the steps:

[0065] (1) Ultrasonic degreasing of glass beads, the composition and content of the ultrasonic degreasing liquid are as follows:

[0066] Sodium hydroxide 10 g / L

[0067] Sodium carbonate 15g / L

[0068] Sodium Phosphate 35 g / L

[0069] OP-10 emulsifier 10 mL / L

[0070] The ultrasonic process controls the temperature at 25°C for 3 minutes, then pours out the electrolyte, and washes the glass beads with distilled water for 4 times until no degreasing electrolyte remains on the surface of the beads;

[0071] (2) For glass beads sensitization, the composition and content of the sensitization solution are as follows:

[0072] Stannous chloride 15 g / L

[0073] Hydrochloric acid (content 37%) 100 mL / L

[0074] During the sensitization process, the temperature is controlled at 25°C and the sensitization time is 2 minutes, then the electrolyte is poured out, and the glass beads are washed...

Embodiment 2

[0088] A kind of glass microbead chemical plating Ni-P alloy process, comprises the steps:

[0089] (1), with embodiment 1;

[0090] (2), with embodiment 1;

[0091] (3), with embodiment 1;

[0092] (4) During the electroless Ni-P plating process, the temperature is controlled at 60° C., and other conditions are the same as those in Example 1.

[0093] When the glass beads are put into the plating solution and stirred intermittently for electroless plating, since the reaction speed of the electroless plating is moderate at this temperature, a uniform, continuous and bright Ni-P alloy deposition layer can be formed on the surface of all the beads, and the plating There are no free metal particles in the liquid and between the beads, Figure 2a and Figure 2b is the SEM morphology of microbeads and coatings on the surface of microbeads when the temperature of the plating solution is 60°C and the plating time is 30 minutes. Figure 2a and Figure 2b It is concluded that aft...

Embodiment 3

[0096] A kind of glass microbead chemical plating Ni-P alloy process, comprises the steps:

[0097] (1) Ultrasonic degreasing of glass beads, the composition and content of the ultrasonic degreasing liquid are as follows:

[0098] Sodium hydroxide 5 g / L

[0099] Sodium carbonate 10g / L

[0100] Sodium Phosphate 30 g / L

[0101] OP-10 emulsifier 5 mL / L

[0102] The ultrasonic process controls the temperature at 25°C for 3 minutes, then pours out the electrolyte, and washes the glass beads with distilled water for 4 times until no degreasing electrolyte remains on the surface of the beads;

[0103] (2) For glass beads sensitization, the composition and content of the sensitization solution are as follows:

[0104] Stannous chloride 10 g / L

[0105] Hydrochloric acid (content 37%) 50 mL / L

[0106] During the sensitization process, the temperature is controlled at 25°C and the sensitization time is 2 minutes, then the electrolyte is poured out, and the glass beads are washed wi...

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Abstract

The invention discloses a chemical plating Ni-P alloy technology of glass micro beads. A common chemical plating nickel liquid formula is adopted, the temperature is controlled to be 50-60 DEG C in the chemical plating nickel process, the plating application time is 30 minutes, and finally the chemical plated Ni-P alloy of glass micro bead with an even Ni-P deposition layer is obtained. After chemical plating, the contents of surface elements O and Si of the micro beads are lowered, but the contents of Ni and P are maximum, wherein the content of Ni reaches 58.76-68.41wt%, and the content of P reaches 8.87-10.04wt%. Compared with the chemical plating Ni-P alloy technology in the prior art, the content of Ni on the surface of the micro beads of the technology optimized by the invention is improved by 21.68-31.33wt%, and the content of P is improved by 8-9wt% compared with those of the technology which is not optimized.

Description

technical field [0001] The invention belongs to the field of electroless plating on material surfaces, and more specifically relates to a process for electroless plating of Ni-P alloys on glass microspheres. Background technique [0002] Glass beads have many unique properties, Mohs hardness is between 1.54-1.50, high strength, low wear, impact resistance, stable chemical properties, and glass beads have good roundness, uniform size, high specific surface area, and low cost , has good heat resistance and good crack resistance. One of its applications is that after electroless Ni-P deposition on the surface of microbeads, it can be used as a conductive filler during electroplating to reduce the tank voltage and improve the quality of the plating of the plated parts; it can also be used as a filler for electromagnetic shielding materials and invisible absorbing materials. However, for these applications, the uniformity of the metal coating on the surface of the glass beads is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/10
Inventor 郭国才
Owner SHANGHAI INST OF TECH
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