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Preparation method for ultrasonic atomization spraying film

A technology of ultrasonic atomization and spraying liquid, applied in the directions of spraying device, spraying device, liquid spraying device, etc., can solve the problems of application scope or application object limitation, etc., and achieve the effect of wide application range, high appearance quality and high utilization rate

Active Publication Date: 2014-04-23
佛山中科产业技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although there have been many ultrasonic atomization spraying processes and equipment for ultrasonic atomization spraying, these processes or equipment have limitations in the scope of application or application objects

Method used

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  • Preparation method for ultrasonic atomization spraying film
  • Preparation method for ultrasonic atomization spraying film
  • Preparation method for ultrasonic atomization spraying film

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0047] Assemble the ultrasonic spraying equipment, put a nano-titanium dioxide self-cleaning sol used on the glass surface in the ultrasonic atomization chamber, immerse the sol in the ultrasonic atomization generator, and maintain a certain liquid level. Prepare the glass substrate, adjust the ultrasonic frequency of the ultrasonic atomization generator to 2.0MHz, turn on the power supply, and the ultrasonic atomization generator starts to work, and instantly atomizes the sol into a very fine liquid mist with a particle size of 10nm to 30nm, and passes through The mist conduit reaches the double-layer nozzle, and under the action of the air flow, the liquid mist is taken out of the spray port to form a uniform liquid mist stream, keeping the glass substrate at a position of 5-8 cm directly below the spray port, and spraying with 1.5 The speed of cm / s moves forward flatly, and the glass substrate deposits a layer of nanometer self-cleaning coating with uniform thickness and tra...

specific Embodiment 2

[0048] For extremely small workpieces, the surface needs to be sprayed with a layer of paint, as follows: first assemble the ultrasonic spraying equipment, and install nozzles of the same area on the equipment according to the area to be coated on the surface of the workpiece (specifically, double-layer nozzles) Inner mouth area) spray head, put the liquid paint in the ultrasonic atomization chamber, the paint is immersed in the ultrasonic atomization generator, and maintain a certain liquid level. Adjust the ultrasonic frequency of the ultrasonic atomizing generator to 2.0MHz, start the power supply, and the ultrasonic atomizing generator starts to work, and instantly atomizes the paint into a very fine liquid mist with a particle size of 10nm to 30nm, and reaches the double layer through the mist outlet tube Nozzle, under the action of nitrogen flow, the liquid mist is taken out of the spray port, forming a uniform liquid mist stream, keeping the workpiece at a position of 5-...

specific Embodiment 3

[0049] For the coating on the surface of some immovable workpieces, the method adopted is as follows: first, according to the area of ​​the workpiece surface to be coated, the equipment is equipped with nozzles with the same area of ​​nozzles (specifically, the inner nozzle of the double-layer nozzle Area), the double-layer spray head is a hand-held spray head, assemble the ultrasonic spraying equipment, install the double-layer spray head on the equipment, put the liquid paint in the ultrasonic atomization chamber, and immerse the paint in the ultrasonic atomization generator, and keep a certain liquid surface height. Adjust the ultrasonic frequency of the ultrasonic atomizing generator to 2.0MHz, turn on the power, and the ultrasonic atomizing generator starts to work, and instantly atomizes the paint into a very fine liquid mist with a particle size of 10um~30um, and reaches the double layer through the mist outlet tube Nozzle, under the action of oxygen flow, the liquid mi...

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Abstract

The invention relates to a preparation method for an ultrasonic atomization spraying film. A simple ultrasonic atomization device is used for atomizing spraying liquid into ultra-fine liquid drops; the ultra-fine liquid drops are uniformly adhered to the surface of a base material by using external auxiliary airflow, so that a coating of which the thickness is uniform and controllable and the appearance quality is high is formed; the problems that in the prior art, the surface uniformity of a coating is poor, a coating effect is low, spraying amount is not controllable, productivity is low and the like are solved; and the purpose of accurate spraying is achieved. Compared with the prior art, the preparation method for the ultrasonic atomization spraying film has the advantages that spraying efficiency is high, the quality of the film is high, the repeatability of products is high, the liquor using rate is also high, the spraying area and the thickness of the coating can be accurately controlled, and the like.

Description

technical field [0001] The invention relates to the technical field of spraying, and relates to the spraying processing technology of nano-films, in particular to a novel method for preparing ultrasonically atomized sprayed films. Background technique [0002] Ultrasonic atomization spraying is a method of thin film preparation, which is used to spray thin films on the surface of substrates. The process generally includes three steps: ultrasonic atomization, spraying, and post-treatment. Ultrasonic atomization is the use of ultrasonic cavitation, so that the tiny cavitation nuclei (bubbles) in the solution oscillate, grow and expand under the action of ultrasonic energy, and migrate to the surface of the solution. After reaching the surface of the solution, they rupture to form tiny droplets (fog) ). Because the droplets of ultrasonic atomization are small in size and uniform in distribution, the atomization effect is good and easy to control, which can avoid many unnecessa...

Claims

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Application Information

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IPC IPC(8): B05B17/06B05B1/00B05B12/00
CPCB05B1/02B05B7/066B05B17/0615
Inventor 于伟东杨海明谢晓峰伦志辉李珠梅
Owner 佛山中科产业技术研究院
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