Unlock instant, AI-driven research and patent intelligence for your innovation.

Impurity removing and regenerating method for electronickelling solution

A technology of electroplating nickel and electroplating solution, which is applied in the direction of electrolysis process, electrolysis components, cells, etc., and can solve the problems of diamond shedding, plating solution concentration and ratio imbalance, insufficient clamping force of the coating on diamond, etc.

Inactive Publication Date: 2014-08-20
奚经龙
View PDF2 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after a period of continuous production of the plating solution, a large amount of metal impurities and organic impurities will be entrained. The decomposition of the brightener will also produce various organic impurities, and the concentration and ratio of each component of the plating solution will also be out of balance. In this way, the plated grinding wheel will fall off due to the weak combination of the coating and the substrate during the grinding of crystal products, or the coating will not have enough clamping force on the diamond, which will cause the diamond to fall off, thereby reducing the grinding force. During the process, there will be a phenomenon of missing plating on the edge of the grinding wheel
The traditional method of treating the plating solution generally uses the adsorption function of activated carbon to absorb impurities, or uses a filter device to remove impurities, but these physical methods cannot completely remove the impurities in the plating solution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Impurity removing and regenerating method for electronickelling solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 Shown, a kind of electroplating nickel solution impurity removal regeneration method is characterized in that, comprises the steps:

[0038] 1) Electrolytic impurity removal: After filtering out the diamond in the electroplating solution, cut 0.2 square meters of 20-mesh 304 stainless steel mesh per 100 liters of plating solution, roll the intercepted stainless steel mesh into a cylinder, and connect it to the negative pole of the power supply , put it upside down in the plating tank horizontally as a fake plating piece, the power supply current is set according to 0.08A per 1 square decimeter of stainless steel mesh, the temperature of the plating solution is 39°C, stir the plating solution, keep it for 12 hours, and naturally cool to room temperature.

[0039] 2) After the step 1) is processed, adjust the pH value of the plating solution at 2.8 with sulfuric acid solution, stir the plating solution, and keep it for 30 minutes, reducing the pH value is...

Embodiment 2

[0057] Such as figure 1 Shown, a kind of electroplating nickel solution impurity removal regeneration method is characterized in that, comprises the steps:

[0058] 1) Electrolytic impurity removal: After filtering out the diamond in the electroplating solution, cut 0.2 square meters of 20-mesh 304 stainless steel mesh per 100 liters of plating solution, roll the intercepted stainless steel mesh into a cylinder, and connect it to the negative pole of the power supply , placed upside down in the plating tank horizontally as a dummy plated piece, the power supply current is set according to 0.12A per 1 square decimeter of stainless steel mesh, the temperature of the plating solution is 41°C, the plating solution is stirred, kept for 12 hours, and naturally cooled to room temperature.

[0059] 2) After the step 1) is processed, adjust the pH value of the plating solution at 3.8 with sulfuric acid solution, stir the plating solution, and keep it for 30 minutes, reducing the pH val...

Embodiment 3

[0077] Such as figure 1 Shown, a kind of electroplating nickel solution impurity removal regeneration method is characterized in that, comprises the steps:

[0078] 1) Electrolytic impurity removal: After filtering out the diamond in the electroplating solution, cut 0.2 square meters of 20-mesh 304 stainless steel mesh per 100 liters of plating solution, roll the intercepted stainless steel mesh into a cylinder, and connect it to the negative pole of the power supply , put it upside down in the plating tank horizontally as a fake plating piece, the power supply current is set according to 0.08A~0.12A per 1 square decimeter of stainless steel mesh, the temperature of the plating solution is 39℃~41℃, stir the plating solution, keep it for 12 hours, and cool it naturally to room temperature.

[0079] 2) After the step 1) is processed, adjust the pH value of the plating solution at 3.2 with sulfuric acid solution, stir the plating solution, and keep it for 30 minutes, reducing th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an impurity removing and regenerating method for an electronickelling solution. The method comprises the steps of removing impurities by electrolysis, regulating PH value to be 2.8-3.8, adding hydrogen peroxide, heating up and stirring, regulating PH value to be 5.8-6.1, heating up, adding activated carbon and stirring, cooling and standing, filtering by filter paper at a medium speed, regulating PH value to be 3.8-4.5, supplementing chemical agents, and regulating PH value to be 3.8-4.5. According to the method, the impurities in the electronickelling solution are removed by a chemical method, inorganic and organic impurities in the electronickelling solution are cleared thoroughly, and the electronickelling solution acquires a completely new outlook through supplementing chemical medicines.

Description

technical field [0001] The invention belongs to a method for removing impurities from an electroplating nickel solution, in particular to a method for removing impurities and regenerating an electroplating nickel solution. Background technique [0002] The drum-shaped diamond grinding wheel used for grinding in the crystal industry belongs to semi-bright nickel plating. The role of adding brighteners saccharin and 1,4-butynediol is not to increase brightness and improve appearance, but to use 1,4-butyne diol Alcohol can increase the hardness of the nickel coating, thereby improving the wear resistance, while saccharin makes the structure of the nickel coating delicate, increases flexibility, and reduces the brittleness brought by 1,4-butynediol. However, after a period of continuous production of the plating solution, a large amount of metal impurities and organic impurities will be entrained. The decomposition of the brightener will also produce various organic impurities, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C25D21/18C25D3/12
Inventor 奚经龙
Owner 奚经龙