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Nickel plating deep hole agent and preparation method and electroplating method thereof

A deep-hole agent and nickel-plating technology, applied in the field of nickel-plating deep-hole agent and its preparation, can solve the problems of coating rust, product failure, poor consistency of inner cavity coating, etc., achieve fine crystallization, meet anti-corrosion requirements, and improve adsorption Effect

Pending Publication Date: 2022-03-22
佛山亚特表面技术材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a nickel plating deep hole agent and its preparation method and electroplating method, aiming to solve the poor consistency of the inner cavity coating of deep hole products obtained by the existing electroplating process, The problem of product failure is often caused by the rust of the plating in the hole

Method used

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  • Nickel plating deep hole agent and preparation method and electroplating method thereof
  • Nickel plating deep hole agent and preparation method and electroplating method thereof

Examples

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Effect test

Embodiment 1

[0057] Preparation of nickel plating deep hole agent:

[0058] Under stirring conditions, according to the mass ratio of allylthiourea and 1,3-propanesultone of 2:1, add the aqueous solution of allylthiourea with a mass fraction of 10% to 1,3-propanesulfone In the lactone, then adding an aqueous solution of 5% sodium hydroxide to adjust the pH of the system to 7, reacting at 50°C, washing the obtained solid reaction product twice with water, and drying to obtain the nickel-plated deep Pore ​​agent (sodium allylthiourea propane sulfonate).

[0059] Configuration of nickel plating solution:

[0060] Fully mix nickel sulfate, nickel chloride, boric acid, main light agent, softener, positioning agent and pure water so that the concentration of nickel sulfate in the nickel plating solution is 200g / L, and the concentration of nickel chloride is 50g / L , The concentration of boric acid is 50g / L, the concentration of the main light agent is 0.4g / L, the concentration of the softener i...

Embodiment 2

[0067] Preparation of nickel plating deep hole agent:

[0068] Under stirring conditions, according to the mass ratio of allylthiourea and 1,3-propanesultone of 2:1, add the aqueous solution of allylthiourea with a mass fraction of 10% to 1,3-propanesulfone In the lactone, then adding an aqueous solution of 5% sodium hydroxide to adjust the pH of the system to 7, reacting at 50°C, washing the obtained solid reaction product twice with water, and drying to obtain the nickel-plated deep Pore ​​agent (sodium allylthiourea propane sulfonate).

[0069] Configuration of nickel plating solution:

[0070] Fully mix nickel sulfate, nickel chloride, boric acid, main light agent, softener, positioning agent and pure water so that the concentration of nickel sulfate in the nickel plating solution is 220g / L, and the concentration of nickel chloride is 55g / L , The concentration of boric acid is 55g / L, the concentration of main light agent is 0.5g / L, the concentration of softener is 10g / L,...

Embodiment 3

[0077] Preparation of nickel plating deep hole agent:

[0078] Under stirring conditions, according to the mass ratio of allylthiourea and 1,3-propanesultone of 2:1, add the aqueous solution of allylthiourea with a mass fraction of 10% into 1,3-propanesultone In the ester, then add an aqueous solution of sodium hydroxide with a mass fraction of 5% to adjust the pH of the system to 7. After the reaction at 50°C, the solid reaction product obtained is washed twice with water, and the nickel-plated deep hole is obtained after drying. agent (sodium allylthiourea propane sulfonate).

[0079] Configuration of nickel plating solution:

[0080] Fully mix nickel sulfate, nickel chloride, boric acid, main light agent, softener, positioning agent and pure water so that the concentration of nickel sulfate in the nickel plating solution is 210g / L, and the concentration of nickel chloride is 53g / L , The concentration of boric acid is 53g / L, the concentration of main light agent is 0.45g / L...

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Abstract

The invention discloses a nickel plating deep hole agent and a preparation method and an electroplating method thereof, and the preparation method comprises the following steps: adding an aqueous solution of allylthiourea into 1, 3-propane sultone; and then adding an aqueous solution of sodium hydroxide, and reacting to obtain the nickel-plated deep hole agent. The nickel plating deep hole agent prepared by the preparation method provided by the invention is a polysulfide compound containing unsaturated bonds, can improve the adsorption of a low-electric region to nickel, can enable the nickel plating lower-electric region to generate brightness, can enable a plating layer to crystallize finely, and realizes deep plating capacity, so that the corrosion resistance of the low-electric region is improved, and during a salt spray test, after 48 hours, there is no embroidery spots, and the service life of the nickel plating deep hole agent is prolonged. The product anti-corrosion requirement is met.

Description

technical field [0001] The invention relates to the field of electroplating, in particular to a nickel plating deep hole agent, a preparation method thereof and an electroplating method. Background technique [0002] In today's society, the independent production of large-scale equipment and reliable products is constantly improving, and some products have higher and higher requirements for the surface treatment of deep-hole parts. For example, in the battery industry, battery shells are important parts for alkaline battery manufacturers. For corrosion resistance and decoration, the inner and outer surfaces of battery steel shells often need to be plated with bright nickel; in the circuit board industry, electroplating blind holes or through holes is also a common method. However, the existing nickel plating process for deep-hole parts has a wide variety of additives, and the operation process is complicated. Moreover, the inner cavity coating of deep-hole products obtained ...

Claims

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Application Information

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IPC IPC(8): C25D3/12C25D7/04
CPCC25D3/12C25D7/04
Inventor 彭惠泰
Owner 佛山亚特表面技术材料有限公司
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