The Process of Ultrasonic Cleaning Under the Microscope
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Vytas Klimavicius
Dec 12, 2013, 12:40:07 PM12/12/13
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Vytas Klimavicius
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Article Title: The Process of Ultrasonic Cleaning Under the Microscope
Author: Vytas Klimavicius
Word Count: 564
Article URL: http://www.isnare.com/?aid=1873111&ca=Home+Management
Format: 64cpl
Contact The Author: http://www.isnare.com/eta.php?aid=1873111
Easy Publish Tool: http://www.isnare.com/html.php?aid=1873111
*********************** ARTICLE START ***********************
Ultrasonic cleaning method, based on the excitation of ultrasonic vibration in the washing solution, implies cleaning the surface of solid materials safely and easily. A scientific basis for creation and development of the technology, as well as ultrasonic cleaning equipment, aroused from acoustic cavitation researches, conducted by Professor L.Rozenberg.
Ultrasonic cleaning can replace manual labor, thereby speeding up the cleaning process, ensuring a high degree of surface cleanliness, almost completely eliminating the need in utilizing flammable and toxic solvents. Ultrasonic cleaning process is characterized by several phenomena that occur in high intensity ultrasound field (e.g. acoustic cavitation, acoustic flows, radiation pressure, sonocapillary effect and etc.).
The processes that influence purification
Studies have shown that, depending on the type of dirt, the predominant role in purification is played by various processes . Therefore, the elimination of dirt occurs mainly under the influence of pulsating cavitation bubbles.The pulsating bubbles, making intense vibrations, affect the edges of the contamination film, penetrate it and detach the dirt components.
Radiation pressure and sonocapillary effect contribute to the penetration of cleaning solution into the micropores, bumps and blind channels. Acoustic streaming guarantees rapid removal of contaminants from the surface. If a dirt clot is firmly connected to the surface, collapsing cavitation is required for elimination, the method makes a microshock impact on surface.
Optimal ultrasonic intensity
To activate the desired mode cleaning ultrasonic it is absolutely essential to set the optimal ultrasonic intensity and frequency values. With increasing frequency, the cavitation bubbles doesn�t reach the final stage of the collapse, reducing the influence of cavitation microshock. An excessive frequency lowering leads to an increase in noise level, requiring an increase in the size of the radiator. That�s why an overwhelming majority of most industrial plants operates in the range of 18-44 kHz.
Improving ultrasound intensity above a certain limit leads to an increase in the peak value of pressure, and this is how cavitation bubbles degenerate into pulsating ones. At low intensities cavitation and all the secondary effects that arise during applying liquid ultrasonic vibrations, are weakly expressed.
An efficient detergent
A properly selected detergent plays a great role in the process of cleaning. It is highly recommended to consider the characteristics of the material needed to be cleaned and the nature of contamination beforehand. A cleaning powder must chemically interact with the surface of the contamination only, but not with the fibers of the material.
The bathtub options to consider
Actually, the bath may be of any volume, stainless steel options may be considered freely. Frankly speaking, both standard and seamless models can be utilized. For the treatment of articles in an acidic bath solution it is better to use a bathtub covered with a special protective coating, typically teflon. Electroacoustic transducers convert the energy of electric oscillations into acoustic. For excitation of acoustic oscillations in an ultrasonic bath piezoelectric transducers are used.
The principles of ultrasound generator functioning
Ultrasonic generator is utilized for excitation of the electroacoustic transducers and maintains optimal conditions for the power transmission to the load. This determines the circuit design peculiarities of ultrasonic generators. Therefore, a variety of self-excited circuits are turned to account.
*********************** ARTICLE END ***********************
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Message delivered directly to members of the group:
publish-the...@googlegroups.com
*****************************************************************
Please consider this free-reprint article written by:
Vytas Klimavicius
*****************************
IMPORTANT - Publication/Reprint Terms
- You have permission to publish this article electronically in free-only publications such as a website or an ezine as long as the bylines are included.
- You are not allowed to use this article for commercial purposes. The article should only be reprinted in a publicly accessible website and not in a members-only commercial site.
- You are not allowed to post/reprint this article in any sites/publications that contains or supports hate, violence, porn and warez or any indecent and illegal sites/publications.
- You are not allowed to use this article in UCE (Unsolicited Commercial Email) or SPAM. This article MUST be distributed in an opt-in email list only.
- If you distribute this article in an ezine or newsletter, we ask that you send a copy of the newsletter or ezine that contains the article to http://www.isnare.com/eta.php?aid=1873111
- If you post this article in a website/forum/blog, ALL links MUST be set to hyperlinks and we ask that you send a copy of the URL where the article is posted to http://www.isnare.com/eta.php?aid=1873111
- We request that you ask permission from the author if you want to publish this article in print.
The role of iSnare.com is only to distribute this article as part of its Article Distribution feature ( http://www.isnare.com/distribution.php ). iSnare.com does NOT own this article, please respect the author's copyright and this publication/reprint terms. If you do not agree to any of these terms, please do not reprint or publish this article.
*****************************
Article Title: The Process of Ultrasonic Cleaning Under the Microscope
Author: Vytas Klimavicius
Word Count: 564
Article URL: http://www.isnare.com/?aid=1873111&ca=Home+Management
Format: 64cpl
Contact The Author: http://www.isnare.com/eta.php?aid=1873111
Easy Publish Tool: http://www.isnare.com/html.php?aid=1873111
*********************** ARTICLE START ***********************
Ultrasonic cleaning method, based on the excitation of ultrasonic vibration in the washing solution, implies cleaning the surface of solid materials safely and easily. A scientific basis for creation and development of the technology, as well as ultrasonic cleaning equipment, aroused from acoustic cavitation researches, conducted by Professor L.Rozenberg.
Ultrasonic cleaning can replace manual labor, thereby speeding up the cleaning process, ensuring a high degree of surface cleanliness, almost completely eliminating the need in utilizing flammable and toxic solvents. Ultrasonic cleaning process is characterized by several phenomena that occur in high intensity ultrasound field (e.g. acoustic cavitation, acoustic flows, radiation pressure, sonocapillary effect and etc.).
The processes that influence purification
Studies have shown that, depending on the type of dirt, the predominant role in purification is played by various processes . Therefore, the elimination of dirt occurs mainly under the influence of pulsating cavitation bubbles.The pulsating bubbles, making intense vibrations, affect the edges of the contamination film, penetrate it and detach the dirt components.
Radiation pressure and sonocapillary effect contribute to the penetration of cleaning solution into the micropores, bumps and blind channels. Acoustic streaming guarantees rapid removal of contaminants from the surface. If a dirt clot is firmly connected to the surface, collapsing cavitation is required for elimination, the method makes a microshock impact on surface.
Optimal ultrasonic intensity
To activate the desired mode cleaning ultrasonic it is absolutely essential to set the optimal ultrasonic intensity and frequency values. With increasing frequency, the cavitation bubbles doesn�t reach the final stage of the collapse, reducing the influence of cavitation microshock. An excessive frequency lowering leads to an increase in noise level, requiring an increase in the size of the radiator. That�s why an overwhelming majority of most industrial plants operates in the range of 18-44 kHz.
Improving ultrasound intensity above a certain limit leads to an increase in the peak value of pressure, and this is how cavitation bubbles degenerate into pulsating ones. At low intensities cavitation and all the secondary effects that arise during applying liquid ultrasonic vibrations, are weakly expressed.
An efficient detergent
A properly selected detergent plays a great role in the process of cleaning. It is highly recommended to consider the characteristics of the material needed to be cleaned and the nature of contamination beforehand. A cleaning powder must chemically interact with the surface of the contamination only, but not with the fibers of the material.
The bathtub options to consider
Actually, the bath may be of any volume, stainless steel options may be considered freely. Frankly speaking, both standard and seamless models can be utilized. For the treatment of articles in an acidic bath solution it is better to use a bathtub covered with a special protective coating, typically teflon. Electroacoustic transducers convert the energy of electric oscillations into acoustic. For excitation of acoustic oscillations in an ultrasonic bath piezoelectric transducers are used.
The principles of ultrasound generator functioning
Ultrasonic generator is utilized for excitation of the electroacoustic transducers and maintains optimal conditions for the power transmission to the load. This determines the circuit design peculiarities of ultrasonic generators. Therefore, a variety of self-excited circuits are turned to account.
*********************** ARTICLE END ***********************
- To distribute your articles go to http://www.isnare.com/distribution.php
- For more free-reprint articles go to http://www.isnare.com
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