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폴리우레탄 유압 왕복 씰의 파손 진전 특성

Degradation Progression of Polyurethane Hydraulic Reciprocating Seal

Journal of the Korean Society for Precision Engineering 2018;35(7):701-706.
Published online: July 1, 2018

1 울산대학교 기계공학부

1 School of Mechanical Engineering, University of Ulsan

#E-mail: khchung@ulsan.ac.kr, TEL: +82-52-259-2744
• Received: January 22, 2018   • Revised: February 23, 2018   • Accepted: February 27, 2018

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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Degradation Progression of Polyurethane Hydraulic Reciprocating Seal
J. Korean Soc. Precis. Eng.. 2018;35(7):701-706.   Published online July 1, 2018
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Degradation Progression of Polyurethane Hydraulic Reciprocating Seal
J. Korean Soc. Precis. Eng.. 2018;35(7):701-706.   Published online July 1, 2018
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Degradation Progression of Polyurethane Hydraulic Reciprocating Seal
Image Image Image Image Image Image Image
Fig. 1 Photographs of (a) PU and (b) stainless steel cylinder specimens
Fig. 2 Photograph of experimental setup
Fig. 3 Confocal microscope images of PU specimen (a) before and after the test using normal lubricant for (b) 16 km, (c) 53 km, (d) 110 km, (e) 173 km, and (f) 243 km sliding distances
Fig. 4 Cross-sectional profiles of sealing surface of PU specimen after the test using normal lubricant
Fig. 5 Confocal microscope images of PU specimen (a) before and after the test using lubricant with alumina particles for (b) 15 km, (c) 69 km, (d) 139 km, (e) 188 km, and (f) 250 km sliding distances
Fig. 6 Cross-sectional profiles of sealing surface of PU specimen after the test using lubricant with alumina particles
Fig. 7 (a) Height decrease and (b) height decrease rate of sealing surface of PU specimen with respect to sliding distance
Degradation Progression of Polyurethane Hydraulic Reciprocating Seal