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Method for manufacturing high anti-corrosion nanometer composite plating coat

A nano-composite, high-corrosion-resistant technology, applied in the field of high-corrosion-resistant nano-composite coatings obtained by surface treatment technology, can solve the problems of no patents and research papers, no composite functional coatings, thick coatings and poor corrosion resistance and other issues to achieve the effect of improving physical and chemical properties, reducing stress, and reducing emissions

Active Publication Date: 2010-07-28
漳州建霖实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating has disadvantages such as large stress
[0005] At present, these composite coatings have disadvantages such as large stress, thick coating and poor corrosion resistance. So far, no composite functional coatings with thin coatings and excellent corrosion resistance have been seen in the market, and no related patents and researches have been seen. paper report

Method used

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  • Method for manufacturing high anti-corrosion nanometer composite plating coat
  • Method for manufacturing high anti-corrosion nanometer composite plating coat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The base material is a copper base material, and its preparation method is as follows:

[0039] The copper substrate is firstly pretreated, and the pretreatment of the copper substrate includes the following steps:

[0040] 1) The process formula of chemical degreasing is:

[0041] NaOH is 10g / L, Na 3 PO 4 25g / L, K 2 CO 3 10g / L.

[0042] The temperature of chemical degreasing is 55°C, the ultrasonic chemical degreasing is carried out by using PP tank and ultrasonic oscillator, the current is 8A, and the chemical degreasing time is 3min.

[0043] 2) For the first washing, use pure water for rinsing, the rinsing temperature is 35°C, and the rinsing time is 1.5min.

[0044] 3) The technological formula of acid activation is:

[0045] Ammonium persulfate is 2.5g / L, sulfuric acid is 20ml / L.

[0046] The acid activation temperature is room temperature, and the acid activation time is 1 min.

[0047] 4) The process and process conditions of the second water washing ar...

Embodiment 2

[0059] Similar to Example 1, its difference is that the process formula of the chemical degreasing of copper substrate pretreatment is:

[0060] NaOH is 15g / L, Na 3 PO 4 30g / L, K 2 CO 3 It is 8g / L.

[0061] The temperature of chemical degreasing is 50°C, the ultrasonic chemical degreasing is carried out by using PP tank and ultrasonic oscillator, the current is 5A, and the time of chemical degreasing is 4min. The first water washing is rinsed with pure water, the rinse temperature is 20°C, and the rinse time is 2min. The technological formula of acid activation is: ammonium persulfate is 3g / L, sulfuric acid is 30ml / L. The acid activation temperature is room temperature, and the acid activation time is 0.5 min. The plating solution formula for electroplating the amorphous nanocomposite nickel layer on the base material after pretreatment is: nickel sulfate is 270g / L, nickel chloride is 50g / L, boric acid is 40g / L, and nano-nickel-phosphorus alloy powder slurry is 0.1g / L, ...

Embodiment 3

[0072] Similar to Example 1, the difference is that the copper substrate pretreatment comprises the following steps:

[0073] The process formula of chemical degreasing is:

[0074] NaOH is 20g / L, Na 3 PO 4 20g / L, K 2 CO 3 It is 12g / L. The temperature of chemical degreasing is 60°C, the ultrasonic chemical degreasing is carried out by using PP tank and ultrasonic oscillator, the current is 2A, and the time of chemical degreasing is 5min. The first water washing is rinsed with pure water, the rinse temperature is 50°C, and the rinse time is 1min. The technological formula of acid activation is: ammonium persulfate is 2g / L, sulfuric acid is 25ml / L. The acid activation temperature is room temperature, and the acid activation time is 0.7 min. The plating solution formula for electroplating the amorphous nanocomposite nickel layer on the base material after pretreatment is: nickel sulfate is 300g / L, nickel chloride is 55g / L, boric acid is 35g / L, and nano-nickel-phosphorus al...

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Abstract

A method for preparing nanometer compound plating layers with high corrosion resistance relates to a nanometer compound plating layer and provides a method for preparing nanometer compound plating layers with high corrosion resistance whose thickness is thin and corrosion resistance is absolutely good, the method comprises the following steps: preprocessing a substrate, electroplating an amorphous nanometer compound nickel layer, and plating chromium on the electroplating amorphous nanometer compound nickel layer, adopting the screw-type contractometer canonical measure, the plating layer stress is between -3 Kg / mm2 and -0.5Kg / mm2, the thickness of the amorphous nanometer compound plating layer is 4-5mu m+ and light is Cr 0.25-0.5mu m, and the corrosion resistance can reach more than 200h. The nanometer compound plating layers have a wide application, and can be used in the surface function decorating fields such as treating the surfaces of bathrooms, automobiles, household electrical appliances and houses. The three layers of nickel and the process flow of plating nickel layer can be shortened by adopting the nanometer compound plating layer with high corrosion resistance, the three layers of nickel and the compound plating layer of the nickel plating layer can be replaced only by plating one layer of the nanometer compound plating layer, and the nanometer compound plating layer has the advantages of simple technology, less waste water discharging, in particular to thin plating layer, high corrosion resistance and the like.

Description

technical field [0001] The invention relates to a nanocomposite coating, in particular to a method for obtaining a highly corrosion-resistant nanocomposite coating by using surface treatment technology. Background technique [0002] With the rising price of nickel, under the premise of ensuring the function of the coating, reducing the thickness of the electroplating nickel layer can directly reduce the production cost of electroplating, reduce waste water discharge, and achieve the purpose of energy saving and emission reduction. [0003] In the development of modern electroplating technology, composite electroplating is the most active part. Since it was successfully researched in the 1930s and put into production in the 1960s, it has developed extremely rapidly and its application fields have continued to expand. At the same time, in terms of decorative electroplating, in order to obtain a highly corrosion-resistant coating, Atotech Corporation of the United States invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D5/12C25D5/34C25D3/06
Inventor 余水关栋云
Owner 漳州建霖实业有限公司