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Paper Abstract and Keywords
Presentation 2009-10-30 17:30
An experimental study on influences of silicone-type and non-silicone-type polymeric materials on contact resistance characteristics of relay contacts (II)
Makoto Hasegawa, Takuma Matsuto, Megumi Fujiwara (Chitose Inst. of Sci. & Tech.), Yoshiyuki Kohno (KANEKA Corp.) EMD2009-68 Link to ES Tech. Rep. Archives: EMD2009-68
Abstract (in Japanese) (See Japanese page) 
(in English) Silicone contamination is one of well-known reasons of contact failures. It has been reported that siloxane component emitted from silicone-including polymeric materials is dissolved and converted into SiO2 due to arc discharges upon relay operations, deposited onto contact surfaces, resulting in a significant increase in contact resistance.
In this paper, a new acryl-based polymeric material (containing no silicone components) was evaluated with respect to its effects on contact resistance characteristics of relay contacts at ambient temperature of 120ºC. More specifically, a commercially-available mechanical relay (AgSnIn contacts) was sealed into a can with the material, and placed in a heating chamber to operate 40,000 break operations of an inductive DC14V-0.4A current and a resistive DC14V-1A current. The same experiments were also conducted with two types (a normal grade and a countermeasure grade against contact failures) of silicone-containing polymeric materials. As a result, in both load conditions, relays sealed with the acryl-based polymeric material showed no deterioration in contact resistances, while relays sealed with the normal-grade silicone-containing polymeric materials showed deteriorated contact resistances. In the inductive DC14V-0.4A load circuit, the silicone-containing material of the counter-measure type also induced significant fluctuations in the contact resistances.
Keyword (in Japanese) (See Japanese page) 
(in English) silicone / polyacrylate / electrical contacts / contact resistance / contact failure / arc discharge / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 263, EMD2009-68, pp. 57-62, Oct. 2009.
Paper # EMD2009-68 
Date of Issue 2009-10-23 (EMD) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 EMD2009-68 Link to ES Tech. Rep. Archives: EMD2009-68

Conference Information
Committee EMD  
Conference Date 2009-10-30 - 2009-10-30 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMD 
Conference Code 2009-10-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An experimental study on influences of silicone-type and non-silicone-type polymeric materials on contact resistance characteristics of relay contacts (II) 
Sub Title (in English)  
Keyword(1) silicone  
Keyword(2) polyacrylate  
Keyword(3) electrical contacts  
Keyword(4) contact resistance  
Keyword(5) contact failure  
Keyword(6) arc discharge  
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Keyword(8)  
1st Author's Name Makoto Hasegawa  
1st Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Sci. & Tech.)
2nd Author's Name Takuma Matsuto  
2nd Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Sci. & Tech.)
3rd Author's Name Megumi Fujiwara  
3rd Author's Affiliation Chitose Institute of Science and Technology (Chitose Inst. of Sci. & Tech.)
4th Author's Name Yoshiyuki Kohno  
4th Author's Affiliation KANEKA Corporation (KANEKA Corp.)
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Speaker Author-1 
Date Time 2009-10-30 17:30:00 
Presentation Time 25 minutes 
Registration for EMD 
Paper # EMD2009-68 
Volume (vol) vol.109 
Number (no) no.263 
Page pp.57-62 
#Pages
Date of Issue 2009-10-23 (EMD) 


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