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Method for ultra-smooth surface processing through ultraviolet-light-induced nano-particle colloid jet flow

An ultra-smooth surface and nano-particle technology, applied in the field of ultra-smooth surface processing, can solve the problems of low material removal efficiency, processing removal characteristics and uncontrollable factors of processing surface quality, and achieve the effect of improving efficiency and improving removal rate.

Inactive Publication Date: 2013-09-11
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art method of applying nano-colloid jet to polish the surface of components has the disadvantage of low material removal efficiency
People such as Zhang Yong [2] proposed using the method of cavitation jet to improve the material removal rate of nanoparticle colloid jet in colloidal fluid flow pressure cavitation jet polishing device and method (public number CN101670556, publication date: 2010.03.17), but due to The randomness of the cavitation effect in the jet flow process, as well as the high temperature and high pressure characteristics of the cavitation point, make its processing removal characteristics and surface quality uncontrollable.

Method used

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  • Method for ultra-smooth surface processing through ultraviolet-light-induced nano-particle colloid jet flow

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Experimental program
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specific Embodiment approach 1

[0018] Specific implementation mode one: In this implementation mode, the ultra-smooth surface processing method induced by ultraviolet light colloidal jet flow of nanoparticles is as follows:

[0019] (1) Preparation of nanoparticle colloid:

[0020] In terms of mass percentage, 2.5% of titanium dioxide nanoparticles with a particle diameter of 20nm-30nm, 97% of deionized water, 0.15% of a pH regulator and 0.35% of a surfactant are used. Dosing according to these ingredients, using a mechanical dispersion method to disperse it for 20 minutes, to obtain a nanoparticle colloid with a pH value of 9;

[0021] (2) Nanoparticle colloidal pressure occurs:

[0022] The prepared titanium dioxide nanoparticle colloid is put into the nanoparticle colloid container 2, and then the nanoparticle colloid is generated with a pressure of 10 MPa by the booster device 3.

[0023] (3) Generation of focused ultraviolet beams:

[0024] Turn on the adjustable ultraviolet light source 6, wherein ...

specific Embodiment approach 2

[0031] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the nanoparticle colloid consists of 5 parts by weight of nanoparticles, 94.5 parts of deionized water, 0.1 part of pH regulator, and 0.4 parts of active agent. into, wherein the particle size of the nanoparticles is below 50nm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the nanoparticle colloid consists of 8 parts by weight of nanoparticles, 91.5 parts of deionized water, 0.15 parts of pH regulator, and 0.35 parts of surfactant The composition of the agent, wherein the particle size of the nanoparticles is below 40nm, and the composition of the nanoparticles is a combination of 3 parts of nano-titanium dioxide particles and 5 parts of nano-cerium oxide particles. Others are the same as in the first embodiment.

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Abstract

The invention discloses a method for ultra-smooth surface processing through ultraviolet-light-induced nano-particle colloid jet flow. The method comprises the following steps of: fixing a processed workpiece (11) on a multi-degree-of-freedom workbench (12) through a reaction chamber (13); starting an adjustable ultraviolet light source, so as to enable an ultraviolet light beam to be reflected by a reflecting mirror (7), enter a light-liquid coupling nozzle (9) and be focused at a nozzle opening of the light-liquid coupling nozzle; starting a pressurizing device (3) to pressurize nano-particle colloid, and turning a control switch (4) on, so as to enable the nano-particle colloid (5) to enter the light-liquid coupling nozzle (9) and be coupled with the ultraviolet light beam focused through the light-liquid coupling nozzle to form an ultraviolet light coupled nano-particle colloid jet flow beam (10); injecting the ultraviolet light coupled nano-particle colloid jet flow beam (10) to a region to be processed on the surface of the workpiece (11), and performing photocatalysis interface reaction between the ultraviolet light coupled nano-particle colloid jet flow beam (10) and the surface of the workpiece.

Description

technical field [0001] The invention relates to ultra-smooth surface processing technology induced by ultraviolet light colloidal jet flow of nanoparticles. Background technique [0002] With the development of modern short-wave optics, strong light optics, electronics and thin film science, the requirements for ultra-smooth surfaces are put forward for components, and the surface roughness is required to be less than 1nm Rms. It has low surface waviness and high surface shape accuracy; surface defects and subsurface damage are minimized, and the residual processing stress on the surface is extremely small; the crystal surface has a complete lattice structure and no lattice dislocations on the surface. [0003] Nanoparticles have important applications in the field of ultra-smooth surface processing due to their high specific surface area and surface energy. In the prior art, Zhang Feihu, Song Xiaozong [1] and others proposed a method for applying nano colloid jet to polish...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/00
Inventor 宋孝宗龚俊杨东亚段红燕王继波
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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