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Preparation method of titanium alloy surface with low reflectivity to visible light

A low-reflectivity, titanium alloy technology, applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of complex manufacturing process, titanium alloy surface damage, high equipment cost, etc., and achieve easy and absorbing process parameters. The effect of stable performance and low cost

Active Publication Date: 2020-12-04
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, chemical corrosion, ultrafast laser etching, mechanical grooving, reactive ion etching (RIE), among which chemical corrosion will pollute the environment, mechanical grooving and reactive ion etching (RIE) will cause damage to the surface of titanium alloy, The manufacturing process is complicated, and the equipment cost of ultrafast laser etching is high, so there are defects in both physical and chemical methods

Method used

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  • Preparation method of titanium alloy surface with low reflectivity to visible light
  • Preparation method of titanium alloy surface with low reflectivity to visible light
  • Preparation method of titanium alloy surface with low reflectivity to visible light

Examples

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Effect test

Embodiment 1

[0030] A method for preparing a titanium alloy surface with low reflectivity to visible light, comprising the steps of:

[0031] (1) Surface cleaning pretreatment:

[0032] The TC4 titanium alloy sample to be treated is cleaned in an ultrasonic cleaner filled with deionized water, and then cleaned with absolute ethanol (purity: >99.8%), and the surface of the titanium alloy sample is dried with compressed air or Dry naturally at room temperature, pay attention to cleanliness and dust prevention, and obtain clean titanium alloy samples for later use.

[0033] (2) Nanosecond laser preparation of pit-like nano-micro-nano tertiary structures on the surface of titanium alloys:

[0034] (a) Put the four corners of the aforementioned titanium alloy sample up and place it flat on the workbench, with air between the bottom surface of the titanium alloy sample and the workbench. First scan the surface of the sample with a focused laser beam along the X direction, the laser wavelength ...

Embodiment 2

[0042] A method for preparing a titanium alloy surface with low reflectivity to visible light, comprising the steps of:

[0043] (1) Surface cleaning pretreatment:

[0044] The TC4 titanium alloy sample to be treated is cleaned in an ultrasonic cleaner filled with deionized water, and then cleaned with absolute ethanol (purity: >99.8%), and the surface of the titanium alloy sample is dried with compressed air or Dry naturally at room temperature, pay attention to cleanliness and dust prevention, and obtain clean titanium alloy samples for later use.

[0045] (2) Nanosecond laser preparation of pit-like nano-micro-nano tertiary structures on the surface of titanium alloys:

[0046] (a) Put the four corners of the aforementioned titanium alloy sample up and place it flat on the workbench, with air between the bottom surface of the titanium alloy sample and the workbench. First scan the surface of the sample with a focused laser beam along the X direction. The laser wavelength ...

Embodiment 3

[0052] A method for preparing a titanium alloy surface with low reflectivity to visible light, comprising the steps of:

[0053] (1) Surface cleaning pretreatment:

[0054] The TC4 titanium alloy sample to be treated is cleaned in an ultrasonic cleaner filled with deionized water, and then cleaned with absolute ethanol (purity: >99.8%), and the surface of the titanium alloy sample is dried with compressed air or Dry naturally at room temperature, pay attention to cleanliness and dust prevention, and obtain clean titanium alloy samples for later use.

[0055] (2) Nanosecond laser preparation of pit-like nano-micro-nano tertiary structures on the surface of titanium alloys:

[0056] (a) Put the four corners of the aforementioned titanium alloy sample up and place it flat on the workbench, with air between the bottom surface of the titanium alloy sample and the workbench. First scan the surface of the sample with a focused laser beam along the X direction, the laser wavelength ...

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Abstract

The invention belongs to the field of laser processing, and particularly relates to a preparation method of a titanium alloy surface with low reflectivity to visible light. The method comprises the following steps of (1) carrying out cleaning pretreatment on the surface of a titanium alloy sample to be treated; and (2) preparing a pit-shaped milli-micro-nano three-level structure on the titanium alloy surface by nanosecond laser; and (3) carrying out fluorination treatment by adopting hydrofluoric acid, and strengthening a surface nano texture, namely putting the titanium alloy sample treatedin the step (2) into a hydrofluoric acid solution for a certain time, and then performing taking out, cleaning and drying to obtain the titanium alloy surface with low reflectivity to the visible light. The reflectivity of the titanium alloy surface prepared through the preparation method is lower than 3% within the 300-800 nm visible spectrum, and therefore the titanium alloy surface has very good anti-reflection performance. According to the preparation method, the milli-micro-nano three-level structure can be obtained on the titanium alloy surface at the same time, and the preparation method is simple in process, convenient to operate, high in efficiency, low in energy consumption and low in cost.

Description

technical field [0001] The invention belongs to the field of laser processing, and in particular relates to a method for preparing the surface of a titanium alloy with low reflectivity to visible light. Background technique [0002] Titanium is a young metal that appeared on the world industrial stage after World War II, and it is a new star in the kingdom of metal materials. The mass percentage of titanium in the earth's crust is 0.6%, ranking fourth in structural metals after aluminum, iron, and magnesium. Titanium has excellent properties and abundant reserves. In terms of industrial value, resource life and development prospects, it is second only to iron and aluminum, and is known as the rising "third metal". Titanium and its alloys have comprehensive excellent properties of high strength, light weight, and strong heat resistance. When they are used to replace other metals in aircraft manufacturing, they can not only prolong the service life of the aircraft, but also r...

Claims

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Application Information

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IPC IPC(8): B23K26/354B23K26/60C23G1/10B82Y40/00
CPCB23K26/354B23K26/60C23G1/10B82Y40/00
Inventor 成健章鹏刘松涛景书峰杨奇彪娄德元陶青刘顿
Owner HUBEI UNIV OF TECH
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