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Paper Abstract and Keywords
Presentation 2018-11-09 15:05
Evolution of contact surface of closed Cu rivets carrying large current
Xue Zhou, Kai Bo, Guofu Zhai (Harbin Inst. Tech) EMD2018-44 Link to ES Tech. Rep. Archives: EMD2018-44
Abstract (in Japanese) (See Japanese page) 
(in English) The mechanism of contact surface of closed Cu rivets are significant to the static welding caused by carrying large current especially for high-power relays. In this paper, a 2D axially symmetric simplified numerical model based on Navier-Stokes equations for incompressible viscous fluid and potential equation for electric field has been built to describe the formation of static welding including the temperature distribution and contact surface changing under large current on copper contact, the melting process is considered, the thermal analysis with melting deformation on a pair of closed copper rivets contact has been numerically simulated by different current. Experiments have been carried out to get the contact force and the static welding behavior. Compared with the existing thermal simulation results, it shows that the contact surface changing in the thermal simulation is much closer to the experiment result.
Keyword (in Japanese) (See Japanese page) 
(in English) Electrical contacts / static welding / thermal analysis / overcurrent / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 290, EMD2018-44, pp. 21-25, Nov. 2018.
Paper # EMD2018-44 
Date of Issue 2018-11-02 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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reproduction
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMD2018-44 Link to ES Tech. Rep. Archives: EMD2018-44

Conference Information
Committee EMD  
Conference Date 2018-11-09 - 2018-11-09 
Place (in Japanese) (See Japanese page) 
Place (in English) The University of Electro-Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Session IS-EMD2018 
Paper Information
Registration To EMD 
Conference Code 2018-11-EMD 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evolution of contact surface of closed Cu rivets carrying large current 
Sub Title (in English)  
Keyword(1) Electrical contacts  
Keyword(2) static welding  
Keyword(3) thermal analysis  
Keyword(4) overcurrent  
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1st Author's Name Xue Zhou  
1st Author's Affiliation Harbin Institute of Technology (Harbin Inst. Tech)
2nd Author's Name Kai Bo  
2nd Author's Affiliation Harbin Institute of Technology (Harbin Inst. Tech)
3rd Author's Name Guofu Zhai  
3rd Author's Affiliation Harbin Institute of Technology (Harbin Inst. Tech)
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Speaker Author-1 
Date Time 2018-11-09 15:05:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2018-44 
Volume (vol) vol.118 
Number (no) no.290 
Page pp.21-25 
#Pages
Date of Issue 2018-11-02 (EMD) 


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