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Iron-base molybdenum disulfide composite plating liquid for brush plating and producing process thereof

An iron-based molybdenum disulfide and plating solution technology, applied in the direction of electrolytic coatings, coatings, etc., can solve problems such as instability, lack of large-scale production, and obstacles to the widespread use of coatings, and achieve easy storage, no pollution to the environment, and excellent reduction The effect of grinding characteristics

Inactive Publication Date: 2005-09-28
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the current iron-based molybdenum disulfide coating has been studied, it has not been mass-produced because the plating solution has not passed the test and is unstable, which hinders the widespread use of this coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] FeSO 4 270g / L, MoS 2 36g / L, polyoxyethylene alkylphenol ether 1.5g / L, polyethylene glycol 1.5g / L, pH=1.5.

Embodiment 2

[0014] FeSO 4 330g / L, MoS 2 44g / L, polyoxyethylene alkylphenol ether 2g / L, polyethylene glycol 2g / L, pH=2.0.

Embodiment 3

[0016] FeSO 4 300g / L, MoS 2 40g / L, polyoxyethylene alkylphenol ether 1.8g / L, polyethylene glycol 1.8g / L, pH=1.8.

[0017] In the above-mentioned examples 1-3, during the specific preparation, the MoS 2 Dissolve in absolute ethanol, after parking for a period of time, add surfactant polyoxyethylene alkylphenol ether, add polyethylene glycol after stirring, then add a certain amount of main salt solution, the amount of main salt added is more than MoS 2 Non-stick glass rods for signs. Use ultrasonic vibration to make the above solution uniformly mixed before pouring into the remaining main salt solution, and adjust the acidity of the solution with sulfuric acid.

[0018] In order to ensure the stable storage of the above solution, chemically pure fine iron powder should be wrapped in non-woven fabric and placed in the above-mentioned solution. The amount of iron powder is 1.0g / L.

[0019] When preparing the plating solution, MoS is not directly 2 The particles are added ...

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PUM

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Abstract

The present invention relates to iron base composite MoS2 plating solution for brush plating and its preparation process. The composite plating solution consists of FeSO4 270-330 g / L, MoS2 36-44 g / L, polyoxyethylene alkylphenol ether 1.5-2 g / L and polyglycol 1.5-2 g / L, and has pH value of 1.5-2.0. The preparation process includes the technological steps of: dissolving MoS2 grain in absolute ethanol, adding polyoxyethylene alkylphenol ether as non-ionic surfactant while intense stirring, adding proper main salt and polyglycol while stirring, and setting non-woven fabric bag holding iron powder in 1 g / L inside the plating solution. The present invention has stable iron solution and homogeneously dispersed MoS2, and the plating solution may be used in forming excellent coating.

Description

technical field [0001] The invention relates to an iron-based molybdenum disulfide composite plating solution for brush plating and a preparation method thereof, belonging to the technical field of friction-reducing coatings on material surfaces. Background technique [0002] Molybdenum disulfide is an excellent solid lubricant with good chemical stability and high temperature resistance (up to 500°C). The composite coating of 0.02 mm can be used as a self-lubricating coating, so the iron-based molybdenum disulfide composite coating is a A good wear-reducing composite coating. Experiments have found that the Fe-MoS 2 plating with 45 # Steel against grinding, its friction is less than Ni-MoS 2 with 45 # The reason for the counter-wear value of steel is that there are a large number of hydrogen atoms in the iron matrix as a shield, the friction coefficient itself is small, and the hardness of the iron coating is high. large external loads. At the same time, the iron coat...

Claims

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Application Information

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IPC IPC(8): C25D15/00
Inventor 蒋林华徐金霞刘大智陈施英张浩
Owner HOHAI UNIV
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