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Iron-base molybdenum disulfide composite plating liquid for tank 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 properties

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] FeCl 2 360g / L, MoS 2 9g / L, OP emulsifier 0.9g / L, polyethylene glycol 1.35g / L, pH=1.0

Embodiment 2

[0014] FeCl 2 440g / L, MoS 2 11g / L, OP emulsifier 1.1g / L, polyethylene glycol 1.65g / L, pH=2.0.

Embodiment 3

[0016] FeCl 2 400g / L, MoS 2 10g / L, OP emulsifier 1.0g / L, polyethylene glycol 1.5g / L, pH=1.5.

[0017] In the above-mentioned examples 1-3, during the specific preparation, the MoS 2 Dissolve in absolute ethanol, after a period of time, use OP emulsifier to dilute MoS 2 Surface activation, after strong stirring, add an appropriate amount of main salt solution, the amount of main salt added is based on MoS 2 Non-stick glass rods for signs. In the above solution, add surfactant polyethylene glycol, after ultrasonic vibration, pour the rest of the main salt solution, and then mechanically stir for half an hour, then start plating.

[0018] In order to improve the bonding strength of the coating on the surface of the plated piece, a cathode cover is made of non-woven fabric half an hour before electroplating, and molybdenum disulfide is isolated outside the cover. After half an hour of plating, the cathode cover is removed.

[0019] When preparing the plating solution, MoS i...

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PUM

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Abstract

The present invention relates to iron base composite MoS2 plating solution for bath plating and its preparation process. The composite plating solution consists of FeCl2 360-440 g / L, MoS2 9-11 g / L, OP emulsifier 0.9-1.1 g / L and polyglycol 1.35-1.65 g / L, and has pH value of 1.0-2.0. The preparation process includes the technological steps of: dissolving MoS2 grain in absolute ethanol, adding polyoxyethylene alkylphenol ether as non-ionic surfactant and polyglycol while intense stirring, setting the compounded solution inside non-woven fabric bag and setting the bag inside FeCl2 solution. After the plating solution is used for some period, the bag is eliminated for mixing MoS2 grain solution and FeCl2 solution completely. 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 bath 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 coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D15/00
Inventor 徐金霞蒋林华刘大智陈施英徐怡
Owner HOHAI UNIV
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