A kind of electroplating solution and electroplating method for electroplating pearl nickel on stainless steel

A technology of stainless steel and pearl nickel, which is applied in the field of metal surface treatment, can solve the problems of unstable pearl nickel plating solution and white spots on the plating layer, and achieve the effect of improving the electroplating process and solving the instability

Active Publication Date: 2019-01-29
TIANJIAO HOUSEHOLD MFG LTD GUANGDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the above-mentioned defects and problems of the prior art, the purpose of this invention is to provide a plating solution and an electroplating method for electroplating pearl nickel on stainless steel, which solves problems such as the instability of the pearl nickel plating solution and the easy generation of white spots on the coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Bind stainless steel parts with copper wires, put the parts into a chemical degreasing solution for degreasing treatment, the chemical degreasing solution contains 25g / L sodium carbonate, 22g / L sodium phosphate, 1g / L emulsifier OP- 10, and use ultrasonic cleaning, the ultrasonic power is adjusted according to the actual situation, the cleaning time is 10 minutes, and then the parts are soaked in hot water for 30 seconds.

[0029] Put the parts into the pickling solution containing 50mL / L sulfuric acid for 10s, then take the parts out and wash them with flowing deionized water for 20s.

[0030] Put the parts into the nickel electroplating solution for pre-nickel plating treatment, the nickel electroplating solution contains 150g / L of nickel chloride and 80mL / L of hydrochloric acid, the current density is 5A / dm2, the temperature of the plating solution is room temperature, and the plating time After the pre-nickel plating is completed, rinse the parts in flowing deionized...

Embodiment 2

[0035] Bind the stainless steel parts with copper wires, put the parts into the chemical degreasing solution for degreasing treatment, the chemical degreasing solution contains 30g / L sodium carbonate, 25g / L sodium phosphate, 2g / L emulsifier OP -10, and use ultrasonic cleaning, the ultrasonic power is adjusted according to the actual situation, the cleaning time is 10min, and then the parts are soaked in hot water for 30s.

[0036] Put the parts into the pickling solution containing 50mL / L sulfuric acid for 10s, then take the parts out and wash them with flowing deionized water for 20s.

[0037] Put the parts into the nickel electroplating solution for pre-nickel plating treatment. The nickel electroplating solution contains 200g / L of nickel chloride and 100mL / L of hydrochloric acid, the current density is 5A / dm2, the temperature of the plating solution is room temperature, and the plating time After the pre-nickel plating is completed, rinse the parts in flowing deionized wate...

Embodiment 3

[0042] Bind stainless steel parts with copper wires, put the parts into a chemical degreasing solution for degreasing treatment, the chemical degreasing solution contains 32g / L sodium carbonate, 29g / L sodium phosphate, 3g / L emulsifier OP -10, and use ultrasonic cleaning, the ultrasonic power is adjusted according to the actual situation, the cleaning time is 10min, and then the parts are soaked in hot water for 30s.

[0043] Put the parts into the pickling solution containing 50mL / L sulfuric acid for 10s, then take the parts out and wash them with flowing deionized water for 20s.

[0044] Put the parts into the nickel electroplating solution for pre-nickel plating treatment. The nickel electroplating solution contains 230g / L of nickel chloride and 110mL / L of hydrochloric acid, the current density is 5A / dm2, the temperature of the plating solution is room temperature, and the plating time After the pre-nickel plating is completed, rinse the parts in flowing deionized water for ...

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Abstract

The invention provides a plating solution for electroplating satin nickel on stainless steel and an electroplating method thereof. The components and contents of the plating solution are as follows: 300-350 g / L of nickel sulfate, 20-30 g / L of nickel chloride, 20-30 g / L of boronic acid, 10-15 g / L of brighteners, 3-4 g / L of sanding-out agents and 20-30 g / L of sand-paving agents. The electroplating method comprises the following steps of stainless steel pretreatment, nickel pre-electroplating treatment, nickel chemical plating treatment, satin nickel electric plating treatment and drying treatment. The brighteners, sanding-out agents and the sand-paving agents in the plating solution for electroplating the satin nickel act in a mutually matched mode, a plating layer has the silver-white appearance, sand feeling is full, and the plating solution is stable for a long term in use. The electroplating method is easy to operate, the procedures and the workload of treatment of satin nickel waste liquid are reduced, and pollution and destruction of satin nickel electroplating to the ecological environment are reduced.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a plating solution for electroplating pearl nickel on stainless steel and an electroplating method thereof. Background technique [0002] Pearl nickel is also known as satin nickel, sandy nickel, and pitted nickel. The coating is between dark nickel and bright nickel. It has a milky white appearance, no reflection, and a diffuse reflection effect. Low, good corrosion resistance. It is widely used as the bottom layer of chrome, silver and gold plating, and can also be directly used as the surface of protective decorative coating. The pearl nickel electroplating process first appeared in the late 1950s and developed rapidly after the 1990s. At present, pearl nickel coating has been widely used in automobile decoration, electronic products, daily hardware, stationery and other industries. [0003] At present, there are generally two methods of pearl nickel electro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/12C25D5/36C23C28/02C23C18/36
CPCC23C18/36C23C28/023C25D3/12C25D5/36
Inventor 杨富国杨飞张玉红
Owner TIANJIAO HOUSEHOLD MFG LTD GUANGDONG
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