Plating solution formula for continuously electroplating satin nickel and process

An electroplating process, the technology of satin nickel, which is applied in the field of electroplating nickel, can solve the problems of insufficient glossiness of the coating, high cost, and many lost working hours, etc., and achieve excellent hydrophobic function, fill porosity, and prevent residues.

Inactive Publication Date: 2021-04-20
HUAIAN COLLEGE OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, due to the glossiness of satin nickel coating obtained by continuous electroplating process cannot meet the requirements, the appearance is not uniform, and the coating is prone to yellow spots when exposed to the air. Rack plating is often used. The disadvantage of rack plating is low production capacity and many people. , high cost; in addition, the cycle time of the plating solution is short, and the general satin nickel plating solution needs to be maintained and treated with activated carbon once every 6 hours after production, resulting in many lost working hours and high cost

Method used

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  • Plating solution formula for continuously electroplating satin nickel and process
  • Plating solution formula for continuously electroplating satin nickel and process

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Experimental program
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Effect test

Embodiment approach 1

[0020] This embodiment provides a formula of satin nickel plating solution, the formula is: nickel sulfate pentahydrate: mass ratio 560 g / l, nickel chloride: mass ratio 30 g / l, boric acid: mass ratio 45 g / l, poly Diethyl alcohol compound: volume ratio 35ml / liter, fatty alcohol polyoxyethylene ester compound: volume ratio 5.0ml / liter, oxyethylene alkylamide compound: volume ratio 1.0ml / liter.

[0021] The process of continuous electroplating satin nickel includes: pretreatment→pre-nickel plating→sardine nickel plating→semi-bright nickel plating→water cutting. Specifically:

[0022] Pre-treatment: Ultrasonic degreasing → electrolytic degreasing, current density 6~10ASD → normal temperature water washing → pickling → normal temperature water washing.

[0023] Pre-plating nickel: current density 8~15ASD, wash with water at room temperature after electroplating for 5~10 seconds.

[0024] Use the above-mentioned satin nickel plating solution formula to plate satin nickel: control ...

Embodiment approach 2

[0029] The continuous electroplating process of satin nickel provided in this embodiment is roughly the same as Embodiment 1, the difference is only that in the satin nickel plating solution formula, the mass ratio of nickel sulfate pentahydrate is 530 grams per liter, polyoxyethylene alkylamide The volume ratio of the compound was 0.9 ml / L.

[0030] In this embodiment, the prepared satin nickel coating is stable and uniform, has no macula, and has a glossiness of 75.

Embodiment approach 3

[0032] The continuous electroplating process of satin nickel provided in this embodiment is roughly the same as Embodiment 1, the only difference is that in the satin nickel plating solution formula, the volume ratio of polydiethanol-based compound is 36ml / L, fatty alcohol polyoxyethylene ester The volume ratio of the compound was 5.5 ml / L, and the volume ratio of the polyoxyethylene alkylamide compound was 1.1 ml / L.

[0033] In this embodiment, the prepared satin nickel coating is stable and uniform, has no macula, and has a glossiness of 50.

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Abstract

The invention relates to the field of nickel electroplating, and discloses a plating solution formula for continuously electroplating satin nickel and a process.The satin nickel plating solution formula comprises the following components in proportion by weight: 500-560g / L of nickel sulfate pentahydrate, 25-35g / L of nickel chloride, 40-50g / L of boric acid and a non-ionic surfactant; and the non-ionic surfactant comprises the components in proportion by volume: 32-36 ml / L of a cylinder opening agent, 4.0-6.0 ml / L of an auxiliary agent and 0.8-1.2 ml / L of a sand agent. The process comprises the steps of pretreatment->nickel pre-plating-> satin nickel plating->semi-gloss nickel plating->water repelling. Compared with the prior art, the formula of the satin nickel plating solution formula and a saltin nickel plating layer electroplated by the electroplating process have the advantages that the glossiness of the saltin nickel plating layer is stabilized at 40-80, the appearance is uniform, yellow spots are avoided when the saltin nickel plating layer is exposed in air, the maintenance period of the saltin nickel plating solution is obviously prolonged, and the saltin nickel plating layer is treated and maintained once a month by activated carbon.

Description

technical field [0001] The invention relates to the field of electroplating nickel, in particular to a plating solution formula and process for continuous electroplating satin nickel. Background technique [0002] Nickel satin can produce diffuse scattered light, with soft luminosity, smooth hand feeling, and some microscopic undulations; small porosity, low internal stress, good corrosion resistance, and good resistance to touch and scratches. Widely used in cameras, handicrafts, instruments, automotive decorative parts, consumer electronics hardware and other products. For a long time, due to the glossiness of satin nickel coating obtained by continuous electroplating process cannot meet the requirements, the appearance is not uniform, and the coating is prone to yellow spots when exposed to the air. Rack plating is often used. The disadvantage of rack plating is low production capacity and many people. , The cost is high; in addition, the bath cycle time is short, and th...

Claims

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Application Information

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IPC IPC(8): C25D3/12C25D5/14
Inventor 荣建英朱剑莉
Owner HUAIAN COLLEGE OF INFORMATION TECH
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