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Preparation method of wear-resistant cladding layer on copper plate surface

A cladding layer and copper plate technology, which is applied in coating, metal material coating process, etc., can solve the problems of lack of graphene oxide reinforced copper plate composite material preparation and forming technology, high powder waste, and great human injury, etc., to achieve Reduce the probability of agglomeration, the risk factor is small, and the effect of reducing dust pollution

Active Publication Date: 2019-11-15
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, due to the limitations of electroless plating, this method is more harmful to the human body, and it also needs to carboxylate graphene separately, which has a long production cycle. At the same time, it uses the powder spraying sintering method, which has a high degree of waste for this type of powder and has certain limitations
[0008] Therefore, there is still a lack of a cost-effective graphene oxide-reinforced copper composite material preparation and forming technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Graphene oxide was ultrasonically pre-dispersed in analytical pure ethanol for 1 hour, the temperature was at room temperature, and no water vapor was controlled throughout. The volume ratio was strictly controlled at 0.3:50, and then the resulting dispersion was poured into a precursor solution consisting of glycerol and tetraisopropyl titanate, sealed and sonicated for 1 hour. Among them, the volume ratio of glycerol and tetraisopropyl titanate is 10:0.8. Afterwards, hydrothermal treatment is carried out, wherein the volume of the suspension accounts for 30% of the volume of the reactor. Then put it into the reaction furnace to heat, raise the temperature to 90°C at 3°C / min, keep it for 2h, then raise the temperature to 175°C at 1.5°C / min, and keep it for 10h. Cool in air after taking out the reactor. The resulting solution was taken out, centrifuged, and centrifuged several times by pouring analytical pure ethanol until the solution was colorless. The whole proces...

Embodiment 2

[0030] Graphene oxide was ultrasonically pre-dispersed in analytical pure ethanol for 2 hours, the temperature was at room temperature, and no water vapor was controlled throughout. The volume ratio was strictly controlled at 0.6:50, and then the resulting dispersion was poured into a precursor solution composed of glycerol and tetraisopropyl titanate, sealed and sonicated for 2 hours. Among them, the volume ratio of glycerol and tetraisopropyl titanate is 10:1.2. Afterwards, hydrothermal treatment is carried out, wherein the volume of the suspension accounts for 50% of the volume of the reactor. Then put it into the reaction furnace to heat, raise the temperature to 120°C at 5°C / min, keep it for 1h, then raise the temperature to 190°C at 3°C / min, and keep it for 15h. Cool in air after taking out the reactor. The resulting solution was taken out, centrifuged, and centrifuged several times by pouring analytical pure ethanol until the solution was colorless. The whole process...

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PUM

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Abstract

The invention provides a preparation method for an abrasion-resistant cladding layer on the surface of a copper plate. The method comprises the steps that in an anhydrous environment, Ti ions are adsorbed through hydrothermal high pressure under the effect of GO self-carried functional groups, and TiO2-clad GO (the anatase titanium type) is obtained in later roasting; obtained powder, Ti powder, Si powder, the balance of fine iron powder and glycerol are adjusted and mixed at a certain proportion, and thus mixed powder in an adhesive state is obtained; the copper plate is polished through abrasive paper, and the mixed powder in the adhesive state is evenly smeared on the surface of a base body; the powder is pre-sintered quickly and evenly on the surface of the base body through a flame gun; and then a material is treated through laser cladding in the gas atmosphere, and the cladding material is obtained. The cladding material on the surface of the copper plate is small in friction coefficient, has the characteristics of high surface hardness and the like, and meanwhile, has the advantages of being simple, safe, low in cost, easy to operate, controllable, and the like.

Description

technical field [0001] The invention belongs to the technical field of material preparation. Background technique [0002] Graphene nanosheets are one-atom-layer-thick two-dimensional materials composed of sp2 hybridized carbon atoms, which exhibit a series of unusual physical properties. Because of its special two-dimensional structure, graphene nanosheets have attracted great interest from researchers in physics, chemistry and materials science. Basic research and engineering application research on graphene have become a research hotspot in recent years. Due to the high strength of graphene, its tensile strength can reach 130GPa, implying that graphene has a huge application space in material application research. [0003] In fact, the research of using carbon materials such as carbon nanotubes or graphene to enhance the strength and other mechanical properties of copper has been going on and has made some progress. However, due to its extremely outstanding physical pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 闫洪孙勇辉
Owner NANCHANG UNIV