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

Preparation method of titanium alloy super-hydrophobic structure

A super-hydrophobic, titanium alloy technology, applied in metal material coating process, ion implantation plating, coating and other directions, can solve the problems of loss of super-hydrophobicity, weak adhesion between soot and substrate, etc.

Inactive Publication Date: 2019-09-20
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
View PDF12 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the soot in this type of method does not adhere firmly to the substrate, and is easily washed away by liquid and loses superhydrophobic properties.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of titanium alloy super-hydrophobic structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Wipe the titanium alloy surface clean with alcohol and set aside. Set the processing mode of the laser marking machine as a groove structure perpendicular to each other. Set the laser centerline spacing to 0.02mm, the laser output power to 18W, the laser moving speed to 370 mm / s, and the frequency to 37KHz, and complete spot focusing. After completing the parameter setting, start the program, and the laser marking machine will automatically carry out the surface micromachining of the set position, and after completing the processing in one direction, perform the laser micromachining in the vertical direction.

[0020] Put the microcrystalline paraffin in a glass beaker, heat to melt the microcrystalline paraffin, place the micro-processed sample on the top of the beaker, with the micro-processed side facing down, the height of the sample and the molten microcrystalline paraffin liquid level is 10cm, and place it for 20 minutes then remove it.

[0021] The measured con...

Embodiment 2

[0023] Wipe the titanium alloy surface clean with alcohol and set aside. Set the processing mode as a groove structure perpendicular to each other. Set the laser centerline spacing to 0.06mm, the laser output power to 18W, the laser moving speed to 370 mm / s, and the frequency to 37KHz, and complete spot focusing. After completing the parameter setting, start the program, and the laser marking machine will automatically carry out the surface micromachining of the set part, and after completing the processing in one direction, then perform the laser micromachining in the vertical direction.

[0024] Put the microcrystalline paraffin in a glass beaker, heat to melt the microcrystalline paraffin, place the micro-processed sample on the top of the beaker, with the micro-processed side facing down, the height of the sample and the molten microcrystalline paraffin liquid level is 10cm, and place it for 30 minutes then remove it.

[0025] The measured contact angle between the laser...

Embodiment 3

[0027] Wipe the titanium alloy surface clean with alcohol and set aside. Set the processing mode as a groove structure perpendicular to each other. Set the laser centerline spacing to 0.10mm, the laser output power to 18W, the laser moving speed to 370 mm / s, and the frequency to 37KHz, and complete spot focusing. After completing the parameter setting, start the program, and the laser marking machine will automatically carry out the surface micromachining of the set part, and after completing the processing in one direction, then perform the laser micromachining in the vertical direction.

[0028] Put the microcrystalline paraffin in a glass beaker, heat to melt the microcrystalline paraffin, place the micro-processed sample on the top of the beaker, with the micro-processed side facing down, the height of the liquid surface between the sample and the molten microcrystalline paraffin is 3cm, and place it for 20 minutes then remove it.

[0029] The measured contact angle betw...

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
wavelengthaaaaaaaaaa
contact angleaaaaaaaaaa
angleaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a titanium alloy super-hydrophobic structure, and belongs to the technical field of metal surface treatment. The method comprises the following steps of performing laser micro-processing on a metal sample by adopting a laser with wavelength of 1.064 microns, and then evaporating microcrystalline wax. In the laser micro-processing process, the distance between the center lines of the lasers ranges from 0.02 mm to 0.10 mm, the moving speed of the lasers ranges from 370 mm / s to 800 mm / s, the laser output power is 18 w to 30 w, and the frequency is 8 kHz to 37 kHz. The microcrystalline wax evaporating comprises the following steps that the microcrystalline wax is subjected to heating to be melted, the micro-processing sample is placed in a paraffin volatile atmosphere, wherein the micro-processing surface is downward, the height between the sample and the the liquid surface of the molten microcrystalline wax is 3 cm to 30 cm, and the sample is taken out after standing for 20 minutes to 60 minutes. By adopting the method, after water drops are in contact with the treated metal surface, the contact angle between the water drops and the treatment surface is larger than 150 degrees, the rolling angle of the water drops is smaller than 10 degrees, so that the super-hydrophobic surface is formed on the surface of the metal.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a method for preparing a titanium alloy superhydrophobic structure. Background technique [0002] The wettability of a solid surface is one of the important characteristics of a solid surface. It refers to the ability of a solid interface to change from a solid-gas interface to a solid-liquid interface, and is determined by the chemical composition and microscopic geometry of the surface. It is usually measured by the contact angle θ of a droplet on a solid surface. When θ<90°, the solid surface is hydrophilic, and when θ>90°, it is hydrophobic. When θ > 150° and the rolling angle is less than 10°, it is called a superhydrophobic surface. [0003] Superhydrophobic surfaces have important application values ​​in the fields of self-cleaning, drag reduction, anti-icing, and oil-water separation due to their superior water-repelling properties. ...

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 Applications(China)
IPC IPC(8): C23C14/02C23C14/12C23C14/24
CPCC23C14/028C23C14/12C23C14/24
Inventor 石绪忠张益豪
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP