Ordered closed type micro-nano composite structure anti-icing surface and preparation method thereof

A micro-nano composite structure, closed technology, used in manufacturing tools, welding equipment, laser welding equipment, etc., can solve the problems of insufficient controllability of micro-nano structures, complex preparation steps, material limitations, etc., to achieve flexibility, green environmental protection , Low preparation cost, and the effect of reducing adhesion

Pending Publication Date: 2021-09-21
SHENZHEN RES INST OF XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned preparation methods have their own specific advantages, the corresponding disadvantages cannot be ignored, such as high cost, complicated preparation steps, material limitations, and insufficient controllability of micro-nano structures.

Method used

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  • Ordered closed type micro-nano composite structure anti-icing surface and preparation method thereof
  • Ordered closed type micro-nano composite structure anti-icing surface and preparation method thereof
  • Ordered closed type micro-nano composite structure anti-icing surface and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0043] see figure 1 and figure 2 , an orderly closed micro-nano composite anti-icing surface of this embodiment, including a plurality of tangential periodic tubular microstructures 2 distributed on the metal substrate 1, the material of the metal substrate 1 can be selected but not limited to Titanium alloy, aluminum alloy and other metals. A plurality of tubular microstructures 2 of the same shape and size are arranged in an orderly manner on the surface of the metal substrate and are periodically and repeatedly arranged on the metal substrate 1. Adjacent tubular microstructures 2 are tangent to each other, and the entire metal substrate All the tubular microstructures on the 1 are pressed against each other to fill the entire surface of the metal substrate 1 . The tubular microstructure 2 is provided with a nanostructure 3, the tubular microstructure 2 and the nanostructure 3 form a micro-nano composite structure, there is an air gap 4 between the tubular microstructures...

Embodiment 2

[0049] refer to Figure 6 As shown, this figure schematically shows the flow chart of the preparation of the micro-nano composite structure on the metal surface. This embodiment 2 provides an orderly closed micro-nano composite structure anti-icing surface preparation method, including the following steps:

[0050] S1: Polish and clean the metal substrate to be processed; the metal substrate in the step S1 is titanium alloy, aluminum alloy or other metals, and the polishing step is to use 200#, 500# and 1000# sandpaper on the metal surface Carry out polishing and polishing. The cleaning method is to use deionized water to rinse the residue on the polished metal surface, and put it in absolute ethanol for ultrasonic cleaning for five minutes. After taking it out, rinse the residual absolute ethanol on the surface with deionized water, nitrogen Blow dry the metal surface.

[0051] S2: Reference Figure 7 , which shows a schematic diagram of the laser processing system. Utiliz...

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Abstract

The invention relates to the field of functional surface engineering, in particular to an ordered closed type micro-nano composite structure anti-icing surface and a preparation method thereof. Surface micro-nano treatment is performed by combining pulse lasers and a hydrothermal method, the anti-icing surface with the ordered closed micro-nano composite structure is formed, air in the ordered closed structure can prevent water drops from permeating, heat transfer between the surface and the water drops is then reduced, the freezing time is prolonged, the anti-icing effect is relatively good, the ordered closed type micro-nano composite structure surface has hydrophobicity, the freezing time can be delayed, the adhesive force between an ice layer and the surface is reduced, and the mechanical stability of the surface is enhanced.

Description

technical field [0001] The invention relates to the field of functional surface engineering, in particular to a surface treatment method for improving the anti-icing performance of a metal surface by comprehensively pulsed laser and hydrothermal method for surface micro-nano treatment. Background technique [0002] Icing is a natural phenomenon that is ubiquitous on metal surfaces. The problem of icing on metal low-temperature cold surfaces is widely involved in important industrial fields such as aerospace, wind power / photovoltaic power generation, heat transfer, heat dissipation, refrigeration, transportation, and power communication. Under certain conditions, the adhesion and accumulation of frost on low-temperature cold surfaces will not only reduce the performance and operating efficiency of equipment, but even bring huge economic losses, threatening people's lives and property safety. In view of the serious harm of icing to production and life, the anti-icing performa...

Claims

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Application Information

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IPC IPC(8): C23C22/48C23C22/54C23C22/56C23C22/78C23C22/02B23K26/352
CPCC23C22/48C23C22/54C23C22/56C23C22/78C23C22/02B23K26/352C23C2222/20
Inventor 颜黄苹陈子露王子俊尹靖博
Owner SHENZHEN RES INST OF XIAMEN UNIV
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