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Paper Abstract and Keywords
Presentation 2007-10-19 09:30
A study for long life of Au,Ni-plated slipring for electric power supply
Tatsuya Kobayashi, Koichiro Sawa (Keio Univ.), Kaoru Endo, Hiroshi Hagino (Japan Servo) EMD2007-56
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, Au-Ni plated slip-ring and Ag-Pd brush system is tested for the purpose of long lifetime with
reliability by determining key factors to elongate the lifetime. From previous three tests, it was considered that applied
lubricant amount and contact surface temperature might be key factors of lifetime. In this test (test4), 2 different amounts of
lubricant are applied on slip-ring surface, and contact surface temperature is measured. As the result, variations of surface
temperature around the slip-ring lifetime, and the minimal quantity amount of lubricant were confirmed. In addition, about
8000 hours lifetime (equal to 200 million revolutions) lifetime was achieved. In spite of such long operation, Au, Ni plated
layer and lubricant remain on surface, which is confirmed by analysis by EPMA.
Keyword (in Japanese) (See Japanese page) 
(in English) slip-ring / Au plate / Ag-Pd brush / lubricant / lifetime / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 272, EMD2007-56, pp. 1-6, Oct. 2007.
Paper # EMD2007-56 
Date of Issue 2007-10-12 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
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)
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Conference Information
Committee EMD  
Conference Date 2007-10-19 - 2007-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Keio Univ. Hiyoshi Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Tribology, etc 
Paper Information
Registration To EMD 
Conference Code 2007-10-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study for long life of Au,Ni-plated slipring for electric power supply 
Sub Title (in English)  
Keyword(1) slip-ring  
Keyword(2) Au plate  
Keyword(3) Ag-Pd brush  
Keyword(4) lubricant  
Keyword(5) lifetime  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Tatsuya Kobayashi  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Koichiro Sawa  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Kaoru Endo  
3rd Author's Affiliation Japan Servo Co., Ltd. (Japan Servo)
4th Author's Name Hiroshi Hagino  
4th Author's Affiliation Japan Servo Co., Ltd. (Japan Servo)
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Speaker Author-1 
Date Time 2007-10-19 09:30:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2007-56 
Volume (vol) vol.107 
Number (no) no.272 
Page pp.1-6 
#Pages 6 
Date of Issue 2007-10-12 (EMD) 

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