Unlock instant, AI-driven research and patent intelligence for your innovation.

Metal nano composite galvanized coating electroplate liquid formulation

A composite electroplating, metal nanotechnology, applied in coatings, electrolytic coatings, etc., to overcome agglomeration, improve hardness, and good bonding force

Inactive Publication Date: 2012-05-23
SHANDONG JIANZHU UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The particle size of the agglomerated nanoparticles becomes larger, making it more difficult to disperse in the bath

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Nanocomposite electroplating layer Ni / Ag was prepared on No. 20 steel substrate.

[0024] 1. Process flow:

[0025] Chemical degreasing—cleaning—pickling and derusting—cleaning—weak acid activation—cleaning—electroplating—cleaning—drying. The aforementioned process flow is the same as the common process flow, and will not be repeated here.

[0026] 2. Process formula and process conditions of nanocomposite electroplating:

[0027] Nickel sulfate 300g / l

[0028] Nickel Chloride 43g / l

[0029] Boric acid 40g / l

[0030] Sodium Lauryl Sulfate 0.09g / L

[0031] Silver nanoparticles 5×10 -5 mol / l

[0032] pH 4.0~5.5

[0033] t°C 50±5

[0034] D. k 1.5~2.5A / dm 2

[0035] 3. Verification result

[0036] After electroplating according to the above process, the hardness test was carried out on the coating, compared with the basic plating solution, the test results are as follows:

[0037] The hardness of the pure Ni coating is 281HV, and th...

Embodiment 2

[0038] Example 2: Nanocomposite electroplating layer Ni / Ag was prepared on No. 45 steel substrate.

[0039] 1. Process flow:

[0040] With embodiment 1.

[0041] 2. Process formula and process conditions of nanocomposite electroplating:

[0042] Nickel sulfate 280g / l

[0043] Nickel Chloride 40g / l

[0044] Boric acid 35g / l

[0045] Sodium Lauryl Sulfate 0.07g / L

[0046] Silver Nanoparticles 4×10 -5 mol / l

[0047] pH 4.0~5.5

[0048] t°C 50±5

[0049] D. k 1.5~2.5A / dm 2

[0050] 3. Verification result

[0051] After electroplating according to the above process, test the porosity of the coating with the filter paper method, and compare it with the basic plating solution. The test results are as follows:

[0052] The porosity of the pure Ni coating is 4.1 points / cm 2 , the porosity of the Ni / Ag composite coating is 2.1 points / cm 2 , and the distribution is relatively uniform. It can be seen that the Ag nanoparticles affect the structure of the coat...

Embodiment 3

[0053] Embodiment 3: The process of preparing nanocomposite coating Ni / Ag on copper substrate.

[0054] 1. Process flow:

[0055] With embodiment 1.

[0056] 2. Process formula and process conditions of nanocomposite electroplating:

[0057] Nickel sulfate 340g / l

[0058] Nickel Chloride 51g / l

[0059] Boric acid 45g / l

[0060] Sodium Lauryl Sulfate 0.09g / l

[0061] Silver Nanoparticles 6×10 -5 mol / l

[0062] pH 4.0~5.5

[0063] t°C 50±5

[0064] D. k 1.5~2.5A / dm 2

[0065] 3. Verification result

[0066] After electroplating according to the above process, the binding force of the coating was tested by the bending test method, and compared with the basic plating solution, the test results were as follows:

[0067] Both coatings have good bonding force. Compared with the pure Ni coating, the Ni / Ag composite coating can endure more bending times, indicating that the coating is better combined with the substrate.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
porosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a surface treatment technology, in particular to a formulation of metal nano composite electroplated layer bath, by weight of: nickel sulphate 55,000 to 70,000 parts, nickel chloride 8500 to 10,000 parts, boric acid 7,000 to 9,000 parts, sodium dodecyl sulfate 15 to 20 parts, metallic nano-particles 0.1 to 1.5 parts. The beneficial effect of invention is as follows: First, the electronickelling solution is mixed with the metallic nano-particles, the metal nano-particles in the bath can homodisperse in the stabilizer of the protective effect, to overcome the reunite problem of powders in the bath; second, the coating hardness of nano composite bath compared with the basic bath is increased in constant plating conditions, and the bath with the matrix is good bindingforce, superior corrosion resistance, strong high-temperature oxidation resistance, and the cost-effective of coating is increased greatly.

Description

technical field [0001] The invention relates to a surface treatment technology, in particular to a metal nanocomposite electroplating solution. Background technique [0002] We know that nanocomposite electroplating layer can be obtained by adding nanoparticles into the electroplating solution and co-depositing them with the matrix metal under agitation. Based on the particularity of nanoparticles, the prepared composite coating will exhibit many unique properties. These properties include: hardness, bonding force, corrosion resistance, wear resistance, high temperature oxidation resistance, etc. At present, the research on the nanocomposite nickel plating process at home and abroad is mainly to add inorganic non-metallic nanoparticles, such as Si and SiO, to the plating solution. 2 , SiC, Al 2 o 3 etc., so as to obtain some functional coatings, such as: high temperature resistant coating, wear resistant coating, corrosion resistant coating, etc. [0003] The disadvant...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C25D15/00
Inventor 马洪芳
Owner SHANDONG JIANZHU UNIV