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Ironwork electronickelling rust-proof liquid and preparing method thereof

An anti-rust liquid and electroplating nickel technology, which is applied in the field of metal surface treatment, can solve the problems of increased production costs, complicated preparation methods, expensive material sources, etc., and achieve the goals of reducing power consumption, reducing electroplating costs, and solving the phenomenon of nickel layer yellowing Effect

Active Publication Date: 2018-02-02
GUIZHOU AEROSPACE NANHAI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many scholars at home and abroad have done a lot of research work on anti-rust liquid, and have obtained a large number of new materials, but the source of materials is expensive, the preparation method is complicated, and the production cost is increased.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The preparation method of embodiment 1-8 is all identical, comprises the following steps:

[0021] 1) Boric acid is dissolved in deionized water at 70-80°C to prepare mixed solution 1;

[0022] 2) Add strong acid dropwise to deionized water, stir, and add citrate to obtain solution 2;

[0023] 3) Solution 1 was added dropwise to solution 2, and deionized water was made to volume.

experiment example

[0025] 1. Application effect analysis

[0026] According to the method for embodiment 1-8, iron product electroplating nickel anti-rust solution is prepared, handles identical plated piece with it respectively, nickel layer thickness 4-5 micron, calculates the time that each embodiment removes iron rust in plated piece, result is as follows As shown in Table 2, and refer to the method reported in the literature to evaluate the brightness of the coating (Feng Lajun, Fan Juhong, Lei Alli. Research on the combined additives of nickel in electroplating [J]. Precious Metals, 2006, 27(3): 30-34.) According to the visual experience evaluation method, the luminance is graded. The grading reference standard is: Class 1 (mirror bright) coating is as bright as a mirror, which can clearly distinguish human facial features and eyebrows; Class 2 (bright) coating has a bright surface, which can be seen Human facial features and eyebrows, but the eyebrows are not clear enough; Level 3 (semi-b...

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Abstract

The invention belongs to the technical field of metal surface treatment, and particularly relates to ironwork electronickelling rust-proof liquid. The ironwork electronickelling rust-proof liquid is composed of water, strong acid, boric acid and citrate, wherein the strong acid, the boric acid and the citrate are dissolved into water; according to the ironwork electronickelling rust-proof liquid,all ingredients which are wide in raw material source and low in cost are mixed according to a certain proportion, the ironwork nickel layer yellowing phenomenon can be quickly solved, a matrix and aplating layer are not corroded, use at the room temperature can be achieved, power consumption is reduced, and the electroplating cost is reduced; and in addition, the ironwork electronickelling rust-proof liquid can be used for plugging places existing surface seepage repairing, rusting again after rust on the surface layer of a plating piece is prevented, the using reliability of a gold platingpart is improved, and the service life of the gold plating part is prolonged.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, in particular to a nickel electroplating antirust liquid for iron products and a preparation method thereof. Background technique [0002] Nickel coating has high microhardness, good appearance, excellent machining and anti-corrosion performance, so it is often used as protective / decorative or functional coating. With the development of modern industrial technology, nickel electroplating technology has been more and more widely used in the fields of aerospace, special processing, micro-manufacturing and microelectronic product processing. [0003] For iron products electroplated with nickel, there is a phenomenon that the thickness of the electroplated nickel layer is required to be less than 5 μm. After the electroplating is completed, the surface of the electroplated iron products will turn yellow after a few hours, which is very important. affect the appearance of the product....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/48C23F11/02
CPCC23F11/02C25D5/48
Inventor 李海东刘文贵杨雪莹
Owner GUIZHOU AEROSPACE NANHAI SCI & TECH
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