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Hydrazine hydrate chemical nickel plating solution and preparation method and nickel plating method thereof

A technology of electroless nickel plating and hydrazine hydrate, which is applied in the direction of liquid chemical plating, superimposed layer plating, coating, etc., can solve the problems of damage, pollution, low speed of hydrazine hydrate electroless nickel plating, etc., and achieve simple process and durable Erosion is good, the effect of solving the problem of deposition rate

Active Publication Date: 2019-06-07
ZHEJIANG INNUOVO MAGNETICS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a kind of hydrazine hydrate electroless nickel plating bath and its preparation method and nickel plating method, in order to solve the effect of phosphorus element in the sodium hypophosphite electroless nickel plating bath on the nickel plating bath and the environment in the prior art. damage and pollution, and solve the problem of low rate of hydrazine hydrate electroless nickel plating

Method used

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  • Hydrazine hydrate chemical nickel plating solution and preparation method and nickel plating method thereof
  • Hydrazine hydrate chemical nickel plating solution and preparation method and nickel plating method thereof
  • Hydrazine hydrate chemical nickel plating solution and preparation method and nickel plating method thereof

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preparation example Construction

[0051] The present invention also discloses a preparation method of the above-mentioned hydrazine hydrate alkaline electroless nickel plating solution, comprising the following steps:

[0052] Step 1, measure various raw materials according to the concentration of each component in the electroless nickel plating solution;

[0053] Step 2, dissolving nickel sulfate with deionized water to obtain solution A;

[0054] Step 3, dissolving sodium citrate and potassium sodium tartrate with deionized water to obtain solution B, slowly adding solution A to solution B, mixing evenly and stirring to obtain solution C;

[0055] Step 4, adding cobalt sulfate and lead acetate into solution C respectively, and fully stirring to obtain solution D;

[0056] Step 5. Use 5wt% sodium hydroxide solution to adjust the pH value of solution D to above 9, add hydrazine hydrate, stir and mix evenly, add deionized water to close to the capacity of the volumetric flask, and then use a small amount of so...

Embodiment 1

[0070] Contents of each component in a kind of hydrazine hydrate alkaline electroless nickel plating solution of the present embodiment are as shown in table 1:

[0071] The content of each component in the hydrazine hydrate alkaline electroless nickel plating bath of table 1

[0072]

[0073]

[0074] The preparation method of a kind of hydrazine hydrate alkaline electroless nickel plating bath of the present embodiment specifically comprises the following steps:

[0075] Step 1, take by weighing 3kg nickel sulfate, 8kg sodium citrate, 1.2kg potassium sodium tartrate, 0.6kg cobalt sulfate, 0.5g lead acetate and 6L hydrazine hydrate according to the content of each component in Table 1;

[0076] Step 2. Add 20L of deionized water into container A, add 3kg of nickel sulfate under stirring, and stir until completely dissolved;

[0077] Step 3. Add 30L of deionized water into container B, add 8kg of sodium citrate and 1.2kg of sodium potassium tartrate under stirring, and ...

Embodiment 2

[0087] Each component content is as shown in table 2 in a kind of hydrazine hydrate alkaline electroless nickel plating bath of the present embodiment:

[0088] Content of each component in table 2 hydrazine hydrate alkaline electroless nickel plating bath

[0089] nickel sulfate

25g / L

Hydrazine hydrate

70ml / L

Sodium citrate

60g / L

potassium sodium tartrate

8g / L

cobalt sulfate

10g / L

lead acetate

10mg / L

[0090] The preparation method of plating solution is with embodiment 1, and the nickel plating method of the present embodiment specifically comprises the following steps:

[0091] Step 1. The iron matrix material is subjected to pretreatment processes such as grinding corners → cleaning → degreasing → water washing → degreasing → water washing → pickling → cleaning;

[0092] Step 2, hanging the pretreated sample into a plating tank equipped with an electroless nickel plating solution;

[0093] Step 3, p...

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Abstract

The invention discloses a hydrazine hydrate chemical nickel plating solution and a preparation method and nickel plating method of the hydrazine hydrate chemical nickel plating solution, and belongs to the technical field of chemical nickel plating. The problems that in the prior art, a sodium hypophosphite chemical nickel plating solution and the environment are damaged and polluted by the element phosphorus in the nickel plating solution, and the speed is low when hydrazine hydrate is adopted for chemical nickel plating are solved. The hydrazine hydrate chemical nickel plating solution is prepared from nickel sulfate, hydrazine hydrate, sodium citrate, potassium sodium tartrate, cobalt sulfate and lead acetate. The hydrazine hydrate chemical nickel plating solution and the preparation method and nickel plating method of the hydrazine hydrate chemical nickel plating solution are suitable for chemical nickel plating of matrix materials.

Description

technical field [0001] The invention belongs to the technical field of electroless nickel plating, in particular to a hydrazine hydrate electroless nickel plating bath, a preparation method thereof and a nickel plating method. Background technique [0002] Electroless nickel plating is characterized by its simple process, no need for external power supply, and good uniformity; it can be deposited on various non-metallic substrates such as polymer materials and inorganic non-metallic materials; it has excellent corrosion resistance, wear resistance, and strong coating adhesion. Performance and other characteristics have been developed rapidly and widely used. The composition of the electroless nickel plating solution is very important. The common components of the electroless nickel plating solution include metal salts, reducing agents, complexing agents, buffers, stabilizers, and pH regulators. [0003] The reducing agent provides the electrons required by the nickel ions i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/34C23C28/02
Inventor 魏中华陈小平赵栋梁宋玉王向东刘清友贾书君黄涛汪兵
Owner ZHEJIANG INNUOVO MAGNETICS
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