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오버헤드 교반기에서 자동 점도 측정을 위한 교반 공정 조건의 영향 분석

Analysis of Effect of Stirring Process Conditions on Liquid Viscosity in an Overhead Stirrer

Journal of the Korean Society for Precision Engineering 2020;37(9):659-665.
Published online: September 1, 2020

1 대구가톨릭대학교 기계자동차공학부

1 School of Mechanical and Automotive Engineering, Daegu Catholic University

#E-mail: gidkim@cu.ac.kr, TEL: +82-53-850-2724
• Received: March 13, 2020   • Revised: June 4, 2020   • Accepted: July 20, 2020

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • A Study on Contactless Identification of Impellers Using a Digital Hall Sensor
    Ho-Cheol Lee
    Journal of the Korean Society of Manufacturing Process Engineers.2021; 20(12): 71.     CrossRef

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Analysis of Effect of Stirring Process Conditions on Liquid Viscosity in an Overhead Stirrer
J. Korean Soc. Precis. Eng.. 2020;37(9):659-665.   Published online September 1, 2020
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Analysis of Effect of Stirring Process Conditions on Liquid Viscosity in an Overhead Stirrer
J. Korean Soc. Precis. Eng.. 2020;37(9):659-665.   Published online September 1, 2020
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Analysis of Effect of Stirring Process Conditions on Liquid Viscosity in an Overhead Stirrer
Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Overhead stirrer, impeller and blade
Fig. 2 Schematic process of previous study for discriminating impeller through transforming analog magnetic field signal to digitalized pulse pattern6
Fig. 3 Experimental setup
Fig. 4 Relationship among stirring speed, torque, and liquid viscosity
Fig. 5 Relationship among duty ratio, stirring speed, and stirring torque (load)
Fig. 6 Various shapes of impeller blade
Fig. 7 Relationship between stirring speed and motor torque according to the blade shape (Viscosity = 30,000 cP)
Fig. 8 Beaker identification using RFID technology
Fig. 9 Variation of stirring torque and liquid temperature according to the stirring time(60,000 cP, 500 rpm)
Fig. 10 Photographs of stirring form according to the height of impeller blade in beaker (30,000 cP, 300 rpm)
Fig. 11 Variation of stirring torque according to the height of impeller blade in beaker (Viscosity = 30,000 cP)
Fig. 12 Torque increase according to the stirring speed and the liquid viscosity
Analysis of Effect of Stirring Process Conditions on Liquid Viscosity in an Overhead Stirrer